Shovel
AssigneeSumitomo Heavy Industries, Ltd.
InventorTsutomu Miyatake
Life of this patent
Estimating the term…
Abstract
An upper rotation body is rotatably attached on a lower travelling body. A storage battery module is loaded onto the upper rotation body. The storage battery module has a plurality of plate-shaped storage battery cells that are stacked in z direction when an xyz rectangular coordinate system is defined. At least one heat transfer plate is arranged between the storage battery cells. Pressing plates, which are arranged at both ends of the stack structure of the storage battery cells, apply a compressive force in the stacking direction to the storage battery cells. A first wall plate and a second wall plate pinch the stacked body in the y-direction and are fixed to the pressing plates. The positions of the heat transfer plates are restricted with respect to the first wall plate and the second wall plate.
Claims11
A shovel comprising:
- a lower traveling body;
- an upper rotation body rotatably attached to the lower traveling body;
- and
- a storage battery module loaded onto the upper rotation body,
- wherein the storage battery module comprises:
- a stacked body having
- a plurality of plate-shaped storage battery cells that are stacked in z-direction when an xyz rectangular coordinate system is defined,
- at least one heat transfer plate arranged between the storage battery cells, and
- pressing plates, which are arranged at both ends of a stack structure of the storage battery cells, and apply a compressive force in a stacking direction to the storage battery cells;
- and
- a first wall plate and a second wall plate that pinch the stacked body in the y-direction and are fixed to the pressing plates, and
- wherein the positions of the heat transfer plates are restricted with respect to the first wall plate and the second wall plate.
The shovel according to claim
- wherein the stacked body further comprises an intermediate plate arranged between the storage battery cells, and
- wherein the intermediate plate is fixed to the first wall plate and the second wall plate at the outer periphery of the intermediate plate.
A shovel comprising:
- a lower traveling body;
- an upper rotation body rotatably attached to the lower traveling body;
- and
- a storage battery module loaded onto the upper rotation body,
- wherein the storage battery module comprises:
- a plurality of stacked bodies being arranged in the y-direction, each having
- a plurality of plate-shaped storage battery cells that are stacked in z-direction when an xyz rectangular coordinate system is defined
- pressing plates arranged at both ends of a stack structure of the storage battery cells,
- first tie rods that couple the pair of pressing plates together and apply a compressive force in a stacking direction to the stack structure of the storage battery cells, and
- at least one heat transfer plate pinched between the storage battery cells;
- a first wall plate and a second wall plate that are attached to each of the stacked bodies, pinch each of the stacked bodies in the y-direction, are fixed to the pressing plates, and are thermally combined with the heat transfer plates;
- and
- a third wall plate and a fourth wall plate that pinch the plurality of stacked bodies in the x-direction, and are fixed to the pressing plates of the plurality of stacked bodies, and the first wall plate and the second wall plate attached to the plurality of stacked bodies.
Dependencies are inferred from the claim text.