High voltage battery

Patent metadata

Field	Value
Publication number	US-2017047623-A1
Application number	US-201514943457-A
Country	US
Kind code	A1
Filing date	Nov 17, 2015
Priority date	Aug 12, 2015
Publication date	Feb 16, 2017
Grant date	—

Abstract

A high voltage battery is provided and includes a battery module that has a plurality of battery cells and covers disposed between the battery cells and a plurality of mounting members that fix the battery module to a vehicle body. The covers absorb heat energy between the battery cells and discharge the heat energy between the mounting members. In addition, a cooling block is disposed between the mounting members and has a coolant flowing therein which exchanges heat with the battery cells. Therefore, cooling performance of the battery is improved using a water cooling structure, a height of the mounting members integrating the battery modules with each other is secured to increase structure rigidity and a height of a case of the battery is minimized, thereby improving volume energy density of the battery and preventing generation of a high voltage short-circuit even though the coolant leaks during a vehicle collision.

First claim

What is claimed is:

1 . A high voltage battery, comprising:
a battery module having a plurality of battery cells and disposed between the plurality of battery cells; and a plurality of mounting members that fix the battery module to a vehicle body, wherein the AL covers absorb heat energy between the plurality of battery cells and discharge the heat energy between the plurality of mounting members.

2 . The high voltage battery according to claim 1 , wherein the covers have an ‘L’ shape and are bent from end portions of the battery cells.

3 . The high voltage battery according to claim 1 , wherein the battery module includes a housing and the housing includes mounting parts coupled to the mounting members.

4 . The high voltage battery according to claim 1 , further comprising:
a cooling block disposed between the plurality of mounting members and having a coolant flowing therein, wherein the coolant exchanges heat with the covers.

5 . The high voltage battery according to claim 1 , wherein the mounting members are formed at a predetermined height.

6 . The high voltage battery according to claim 4 , further comprising:
a case that covers an outer side of the battery module having the mounting members and the cooling block.

7 . The high voltage battery according to claim 6 , wherein an insulation pad for reinforcing heat insulation is disposed between a lower surface of the cooling block of the battery module and an inner surface of the case.

8 . The high voltage battery according to claim 4 , wherein a pair of mounting members couple both ends of a plurality of battery modules to each other.

9 . The high voltage battery according to claim 8 , wherein the cooling block is disposed below the battery module and between the pair of mounting members to minimize a vertical height of a case.

10 . The high voltage battery according to claim 1 , wherein each cover is a closed pipe in which a wick having a capillary structure is formed and gas is included therein.

11 . The high voltage battery according to claim 9 , wherein the battery module includes:
a sensing connector disposed at a predetermined height from a lower portion thereof to prevent a high voltage short-circuit when the coolant leaks.

12 . A high voltage battery, comprising:
a battery module having a plurality of battery cells; a plurality of mounting members that fix the battery module to a vehicle body; and a cooling block disposed between the plurality of mounting members and having a coolant flowing therein, wherein the coolant exchanges heat with the plurality of battery cells.

13 . The high voltage battery according to claim 12 , wherein an outer side of the battery module includes a housing on which mounting parts are formed, and an inner portion of the housing includes covers disposed between the battery cells.

14 . The high voltage battery according to claim 12 , wherein the cooling block is disposed below a plurality of battery modules and between the mounting members and moves the coolant to cool the plurality of battery modules.

15 . The high voltage battery according to claim 12 , further comprising:
a case that covers an outer side of the battery module having the mounting members and the cooling block; and an insulation pad for reinforcing heat insulation disposed between a lower surface of the cooling block of the battery module and an inner surface of the case.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Kim Min Wook
• Lee Gun Goo

Classifications

• H01M50/289

  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 title

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/211

  adapted for pouch cells · CPC title

• H01M10/6554

  Rods or plates · CPC title

• H01M10/656

  characterised by the type of heat-exchange fluid · CPC title