Battery-pack case

Patent metadata

Field	Value
Publication number	US-2016190666-A1
Application number	US-201615064897-A
Country	US
Kind code	A1
Filing date	Mar 9, 2016
Priority date	Sep 11, 2013
Publication date	Jun 30, 2016
Grant date	—

Abstract

A battery-pack case includes a container that accommodates a battery pack and has an opening in the top surface thereof, a lid that closes the opening, and a plurality of heater units provided inside the container. The heater units include a first heater unit provided at the bottom of the container and a second heater unit provided on a side wall of the container. A first heater and a second heater that constitute the first heater unit are connected in series, as are third through sixth heaters that constitute the second heater unit.

First claim

What is claimed is:

1 . A battery assembly container comprising:
a box body having an opening in an upper surface of the box body, and accommodating a battery assembly; a lid body configured to close the opening of the box body; and heater units for a plurality of systems provided in the box body, wherein a plurality of heaters of a heater unit for at least one system, among the heater units for the plurality of systems, are connected in series.

2 . The battery assembly container according to claim 1 , wherein the heater units for the plurality of systems include:
a first heater unit provided at a bottom of the box body; and a second heater unit provided along a side wall of the box body, and wherein a plurality of heaters of at least one of the first heater unit and the second heater unit, are connected in series.

3 . The battery assembly container according to claim 2 , wherein a plurality of heaters of the first heater unit are connected in series; and
a plurality of heaters of the second heater unit are connected in series.

4 . The battery assembly container according to claim 1 , wherein each of a plurality of heaters of the heater units for the plurality of systems includes:
a heater wire provided in the box body; a positive side heater wiring line connected to a positive terminal of the heater wire; and a negative side heater wiring line connected to a negative terminal of the heater wire.

5 . The battery assembly according to claim 4 , wherein in the heater unit including the plurality of heaters connected in series, among the heater units for the plurality of systems, the positive side heater wiring line of a heater positioned at one end of serial connection and the negative side heater wiring line of a heater positioned at another end of serial connection are connected to a power supply.

6 . The battery assembly container according to claim 4 , further comprising a terminal frame provided outside the box body, wherein the terminal frame includes:
a plurality of positive side connection terminals each connected to the positive side heater wiring lines, in correspondence with each of the heaters; a plurality of negative side connection terminals each connected to the negative side heater wiring lines, in correspondence with each of the heaters; and one or more jumper wires electrically connecting the positive side connection terminals and the negative side connection terminals corresponding respectively to the plurality of heaters connected in series.

7 . The battery assembly container according to claim 6 , wherein the terminal frame includes:
a positive side power supply terminal connected to a positive terminal of a power supply and a negative side power supply terminal connected to a negative terminal of the power supply; the positive side connection terminal connected to the positive side heater wiring line of the heater positioned at one end of serial connection among the plurality of heaters connected in series and the positive side power supply terminal are connected electrically; and the negative side connection terminal connected to the negative side heater wiring line of the heater positioned at another end of serial connection among the plurality of heaters connected in series and the negative side power supply terminal are connected electrically.

Assignees

• Ngk Insulators Ltd

Inventors

• Hoshino Koji

Classifications

• H01M10/658

  by thermal insulation or shielding · CPC title

• H01M50/505

  comprising a single busbar · CPC title

• H01M50/298

  characterised by the wiring of battery packs · CPC title

• H01M50/276

  Inorganic material · CPC title

• H01M50/51

  Connection only in series · CPC title