Battery temperature control device

Patent metadata

Field	Value
Publication number	US-9566859-B2
Application number	US-201314435276-A
Country	US
Kind code	B2
Filing date	Oct 21, 2013
Priority date	Nov 5, 2012
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

A battery temperature control device has a battery pack case that houses a temperature control unit and a battery stack as a group of battery modules. The temperature control unit has an evaporator exchanges heat using the air conditioning unit from the upstream side of the direction of airflow, a blower fan that recirculates the interior air inside the pack case, a PTC heater as a fin member, and a unit duct that supplies air to the battery stack.

First claim

The invention claimed is:

1. A battery temperature control device, comprising:
a battery module;
a temperature control unit configured to adjust a temperature of the battery module; and
a battery pack case housing the battery module and the temperature control unit, the temperature control unit including an evaporator configured to exchange heat using refrigerant from a cabin air conditioner of a vehicle and being disposed on an upstream side of air flow of the temperature control unit, a blower configured to recirculate battery case interior air, a fin member, and a duct configured to supply air to the battery module, the fin member being disposed downstream of the evaporator and the blower and disposed upstream of the battery module;
the battery pack case being configured to be arranged under a floor of the vehicle in a middle of a vehicle longitudinal direction, the temperature control unit being configured to be arranged in a position on a side adjacent an air conditioner compressor disposed in a motor room in a forward portion of the vehicle and the evaporator being configured to be disposed in a vehicle position more forward than the blower.

2. The battery temperature control device as claimed in claim 1 , wherein
the fin member is a Positive Temperature Coefficient (PTC) heater including mesh fins.

3. The battery temperature control device as claimed in claim 1 , wherein
the blower is a blower fan having a water-tight structure.

4. The battery temperature control device as claimed in claim 1 , wherein
the evaporator is disposed such that a first core surface thereof is disposed in parallel and substantially opposed to an inner side surface of the battery pack case, and the blower is disposed such that a suction side thereof is in parallel and substantially opposed to a second core surface of the evaporator.

Assignees

• Nissan Motor

Inventors

• Hatta Kentaro
• Oshima Kentaro
• Yang Qiye

Classifications

• H01M10/6571

  Resistive heaters (arrangements for heating the battery by its resistance to the internal current H01M10/637) · CPC title

• H01M10/6565

  with recirculation or U-turn in the flow path, i.e. back and forth · CPC title

• H01M10/6551

  Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings · CPC title

• B60L2240/34

  Cabin temperature · CPC title

• B60K1/04

  of the electric storage means for propulsion · CPC title