Cell block

Patent metadata

Field	Value
Publication number	US-10020474-B2
Application number	US-201114111119-A
Country	US
Kind code	B2
Filing date	Apr 12, 2011
Priority date	Apr 12, 2011
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A cell block includes holding sections that hold a battery cell arrayed body of a lower layer between a lower holding frame member and a middle holding frame member, hold a battery cell arrayed body of an upper layer between the middle holding frame member and an upper holding frame member, and hold the battery cell arrayed body of the upper layer and the battery cell arrayed body of the lower layer in a state displaced from each other in the row direction. Lower fastening sections are disposed at positions below a battery cell and projects in the row direction beyond the battery cell arrayed body of the lower layer, and join the lower holding frame member and the middle holding frame member with each other by fastening.

First claim

The invention claimed is:

1. A cell block of at least two battery cell arrayed bodies configured by disposing cylindrical battery cells in parallel, and the at least two battery cell arrayed bodies by at least three holding frame members in a stacking direction of the battery cell arrayed bodies, the cell block comprising:
holding sections that
hold a battery cell arrayed body of a lower layer between a lower holding frame member of a plurality of semi-arcs and a middle holding frame member with a plurality of downward semi-arcs,
hold a battery cell arrayed body of the upper layer between the middle holding frame member with a plurality of upward semi-arcs and an upper holding frame member of a plurality of semi-arcs, and
hold the battery cell arrayed body of the upper layer and the battery cell arrayed body of the lower layer in a row direction from each other;

lower fastening sections that are disposed at positions below a battery cell that projects to one side in the row direction beyond the battery cell arrayed body of the lower layer out of battery cells composing the battery cell arrayed body of the upper layer, and joining the lower holding frame member and the middle holding frame member with each other by fastening;
upper fastening sections that are disposed at positions above a battery cell that projects to one side in the row direction beyond an upper layer battery cell arrayed body of battery cells composing a lower layer battery cell arrayed body, and joining the middle holding frame member and the upper holding frame member with each other by fastening;
the lower fastening sections comprise lower fastening screws situated perpendicular to the battery cell arrayed body of the lower layer and attaching the middle holding frame member to the lower holding frame member, and
the upper fastening sections comprise upper fastening screws situated perpendicular to the battery cell arrayed body of the upper layer and attaching the upper holding frame member to the middle holding frame member;
a space for the communication of coolant between the lower holding frame member, the battery cell arrayed body of the upper layer, the middle holding frame member, the battery cell arrayed body of the upper layer, and the upper holding frame member;
a lower aperture in the lower holding frame member that aligns with a middle aperture of the middle holding frame member for receiving a lower fastening screw of the plurality of lower fastening screws; and
wherein the lower aperture and the middle aperture protrude into the space, and
wherein the middle holding frame member has a first end surface section and a second end surface section, and the first end surface section has a coolant introduction port where coolant enters the space and exists at the second end surface section through a coolant lead out port.

2. The cell block according to claim 1 , further comprising:
lower locking sections that are disposed at both side positions in a lateral width direction of the lower layer battery cell arrayed body and joining the lower holding frame member and the middle holding frame member to each other by locking; and
upper locking sections that are disposed at both side positions in a lateral width direction of the upper layer battery cell arrayed body and joining the middle holding frame member and the upper holding frame member each other by locking.

3. The cell block according to claim 2 ,
wherein the lower locking sections join the lower holding frame member and the middle holding frame member to each other by inserting locking claws that project from one of the lower holding frame member and the middle holding frame member toward the other along the stacking direction into locking holes arranged in the other of the lower holding frame member and the middle holding frame member for locking; and
wherein the upper locking sections join the middle holding frame member and the upper holding frame member to each other by inserting locking claws that project from one of the middle holding frame member and the upper holding frame member toward the other along the stacking direction into locking holes arranged in the other of the middle holding frame member and the upper holding frame member for locking.

4. The cell block according to claim 3 , further comprising:
lower locking sections that are disposed at both side positions in the lateral width direction of the lower layer battery cell arrayed body and join the lower holding frame member and the middle holding frame member to each other by locking; and
upper locking sections that are disposed at both side positions in a lateral width direction of the upper layer battery cell arrayed body and join the middle holding frame member and the upper holding frame member to each other by locking.

5. The cell block according to claim 4 ,
wherein the lower locking sections join the lower holding frame member and the middle holding frame member to each other by inserting locking claws that project from one of the lower holding frame member and the middle holding frame member toward the other along the stacking direction into locking holes arranged in the other of the lower holding frame member and the middle holding frame member for locking; and
wherein the upper locking sections join the middle holding frame member and the upper holding frame member to each other by inserting locking claws that project from one of the middle holding frame member and the upper holding frame member toward the other along the stacking direction into locking holes arranged in the other of the middle holding frame member and the upper holding frame member for locking.

6. A battery device comprising:
an external casing with a top and a bottom, wherein the external casing has a plurality of first ports and a plurality of second ports for circulating coolant;
a plurality of cell blocks within the external casing separated by a plurality of ribs, each of the plurality of cell blocks comprising:
a lower holding frame member having a plurality of semi-arc shapes and a middle holding frame member having a downward plurality of semi-arc shapes aligned with the lower holding frame member's plurality of semi-arc shapes, defining a lower holding space;
a lower battery cell positioned within the lower holding space comprising a series of cylindrical batteries aligned with the lower member frame's plurality of semi-arc shapes, wherein each of the series of cylindrical batteries has an axis positioned at the center of one of the lower holding frame member's semi-arc and the axis is parallel to the bottom of the external casing and perpendicular to the plurality of first and second ports;
an upper holding frame member having a plurality of semi-arc shapes aligned with a plurality of upward semi-arc shapes of the middle holding frame member defining an upper holding space;
an upper battery cell comprising a series of cylindrical batteries aligned with the upper member frame's plurality of semi-arc shapes and positioned within the upper holding space parallel to the lower battery cell; wherein each of the series of cylindrical batteries has an axis position at the center of one of the upper holding frame member's semi-arc;
a plurality of lower fastening screws joining the lower holding frame member and the middle holding frame member, and perpendicular to the lower battery cell;
a lower aperture in the lower holding frame member that aligns with a middle aperture of the middle holding frame member for placement of a lower fastening screw of the plurality of lower fastening screws, wherein the lower aperture and the middle aperture protrude into the lower holding space;
a plurality of upper fastening screws joining the middle holding frame member and the upper holding frame member, and per

Assignees

• Hoshi Hiroshi
• Aiba Tsunemi
• Kojima Naoki
• KIKKAWA Chikara
• Yoshida Toshiyuki
• Hitachi Automotive Systems Ltd

Inventors

• Hoshi Hiroshi
• Aiba Tsunemi
• Kojima Naoki
• KIKKAWA Chikara
• Yoshida Toshiyuki

Classifications

• H01M50/262 Primary

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

• H01M50/271

  Lids or covers for the racks or secondary casings · CPC title

• H01M50/213 Primary

  adapted for cells having curved cross-section, e.g. round or elliptic (H01M50/209, H01M50/216 take precedence) · CPC title

• H01M2/1077 Primary

  Electricity · mapped topic

• H01M10/4257

  Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries · CPC title