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US 8,507,121 B2Granted
Battery temperature unevenness suppressing power supply
AssigneeSanyo Electric Co., Ltd.
InventorsMasao Saito, Shinsuke Nakamura, Akinobu Wakabayashi
Life of this patent
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Abstract
A power supply device is provided that includes a battery module (3) and a cooling mechanism. The battery module is composed of a plurality of batteries (20) arranged side by side. The cooling mechanism cools the batteries (20). A thermally-insulating member (70) is arranged on a part of a battery module surface, and thermally insulates heat generated from the batteries. This power supply device can reduce the temperature unevenness ΔT.
Claims17
A power supply device comprising:
- a battery module including a plurality of batteries arranged side-by-side, and a plurality of separators arranged between adjacent ones of the batteries, respectively;
- a first end plate arranged on a first end of the battery module;
- a second end plate arranged on a second end of the battery module;
- a cooling mechanism that cools the batteries;
- a thermally-insulating member arranged on or over a part of a surface of the battery module, the thermally-insulating member thermally insulates heat generated from at least one of the batteries;
- and
- an accommodation case that accommodates the battery module and has inlet and outlet ports,
- wherein the separators and the end plates form cooling paths on sides thereof that face the batteries, respectively,
- wherein each of the cooling paths is formed to allow coolant to pass therethrough by the cooling mechanism,
- wherein the thermally-insulating member is positioned so as to extend over two or more of the cooling paths which are arranged in a stacking direction of the batteries so that each of the cooling paths covered by the thermally-insulating member is at least partially blocked, and
- wherein the cooling mechanism is arranged to pass the coolant through the inlet and outlet ports, and the thermally-insulating member is disposed on or above at least one of the batteries located in proximity to the inlet port.
8 more elements
A power supply device comprising:
- a battery module including a plurality of batteries arranged side-by-side, and a plurality of separators arranged between adjacent ones of the batteries, respectively;
- a first end plate arranged on a first end of the battery module;
- a second end plate arranged on a second end of the battery module;
- a cooling mechanism that cools the batteries;
- and
- a thermally-insulating member arranged on or over a part of a surface of the battery module, the thermally-insulating member thermally insulates heat generated from at least one of the batteries,
- wherein the separators and the end plates form cooling paths on sides thereof that face the batteries, respectively,
- wherein each of the cooling paths is formed to allow coolant to pass therethrough by the cooling mechanism,
- wherein the thermally-insulating member is positioned so as to extend over two or more of the cooling paths which are arranged in a stacking direction of the batteries so that each of the cooling paths covered by the thermally-insulating member is at least partially blocked, and
- wherein the power supply device further comprises coupling members that hold the end plates and the battery module in a stacked arrangement, wherein the end plates and the battery module are interposed between ends of the coupling members, wherein the thermally-insulating member is attached to the coupling members.
7 more elements
A power supply device comprising:
- a battery module including a plurality of batteries arranged side-by-side, and a plurality of separators arranged between adjacent ones of the batteries, respectively;
- a first end plate arranged on a first end of the battery module;
- a second end plate arranged on a second end of the battery module;
- a cooling mechanism that cools the batteries;
- and
- a thermally-insulating member arranged on or over a part of a surface of the battery module, the thermally-insulating member thermally insulates heat generated from at least one of the batteries,
- wherein the separators and the end plates form cooling paths on sides thereof that face the batteries, respectively,
- wherein each of the cooling paths is formed to allow coolant to pass therethrough by the cooling mechanism,
- wherein the thermally-insulating member is positioned so as to extend over two or more of the cooling paths which are arranged in a stacking direction of the batteries so that each of the cooling paths covered by the thermally-insulating member is at least partially blocked, and
- wherein the thermally-insulating member is formed of a resin material.
7 more elements
Dependencies are inferred from the claim text.