CN205645945U

CN205645945U - Battery module

Info

Publication number: CN205645945U
Application number: CN201620473131.6U
Authority: CN
Inventors: 陈传炼; 伍毓民; 王德荣
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2016-05-23
Filing date: 2016-05-23
Publication date: 2016-10-12
Anticipated expiration: 2026-05-23

Abstract

The utility model provides a battery module, include: a plurality of cell arrange in order to form the group battery along array orientation in proper order, the fixed band encircles the group battery along the terminal surface of array orientation both sides and along the side of width direction both sides, with will a plurality of cell are together fixed, each cell has the recess along the side of width direction both sides, a plurality of cell's recess forms the permanent channel of group battery, and the anchor band is acceptd in permanent channel around the part of the side at the group battery. The anchor band is held tightly with the cell that will constitute the group battery around the outside of group battery, avoids cell to receive skew when strikeing, slide, improves battery module's structural strength, because the part of fixed band is acceptd in permanent channel, reduce the space that occupies, improved battery module's the integrated level and the joint strength of fixed band and group battery, avoid the fixed band to drop from the group battery, the while can also be constructed and the heat dissipation interface for the fixed knot of battery module reservation with the external connection.

Description

Battery modules

Technical field

This utility model relates to field of batteries, particularly relates to a kind of battery modules.

Background technology

The structure of soft-package battery module mainly includes battery modules unit, fixed structure, radiator structure and electricity Attachment structure.The fixed structure of current most soft-package battery module highlights module master with single feature Body, the volume energy density of its module is low, is unfavorable for improving the integrated level of battery system.Also some Battery modules uses single end plate and the module framework of side plate composition, realizes the fixing of battery modules, The structure of this type of battery modules is complicated, and number of parts is many, is unfavorable for improving the energy density of battery modules.

Meanwhile, soft-package battery quantity of heat production is big, while considering that module is fixing, needs to consider battery simultaneously The heat management of module.

Utility model content

In view of problem present in background technology, the purpose of this utility model is to provide a kind of battery mould Group, its structural strength that can improve battery modules self and integrated level.

Another object of the present utility model is to provide a kind of battery modules, and it is without using single end plate The module framework formed with side plate, thus simplify structure and decrease number of parts, be conducive to improving electricity The energy density of pond module.

To achieve these goals, this utility model provides a kind of battery modules, comprising: multiple electricity Pool unit, is sequentially arranged to form set of cells along orientation；Fixing band, around set of cells along arrangement side The side of end face to both sides and in the width direction both sides, to be fixed on one by the plurality of battery unit Rise；Wherein, the side of each battery unit both sides in the width direction has groove, the plurality of battery unit Groove form the fixing passage of set of cells, and the partial receipt of the anchor band side that is wound on set of cells exists In fixing passage.

The beneficial effects of the utility model are as follows:

According in battery modules of the present utility model, anchor band around the outside of set of cells, therefore, it is possible to Multiple battery units of composition set of cells are held tightly, it is to avoid battery unit is subject to impact hour offset, slip, Improve the structural strength of battery modules self；Owing to the partial receipt of fixing band is in fixing passage, subtract Take the space of battery modules less, improve the integrated level of battery modules, it addition, fixing passage can also carry High fixing band and the bonding strength of set of cells, it is to avoid fixing band comes off from set of cells；Meanwhile, fixing band The space taken is little, additionally it is possible to reserve the fixed structure with external connection and heat radiation circle for battery modules Face.Additionally, according in battery modules of the present utility model, it is not necessary to use single end plate and side plate group The module framework become, thus simplify structure and decrease number of parts, be conducive to improving battery modules Energy density.

Accompanying drawing explanation

Fig. 1 is the axonometric chart according to battery modules of the present utility model；

Fig. 2 is the axonometric chart of the battery unit according to battery modules of the present utility model；

Fig. 3 to Fig. 6 is the solid of the different embodiments of the fixing band according to battery modules of the present utility model Figure.

Wherein, description of reference numerals is as follows:

1 battery unit M set of cells

11 heat sink P fix passage

12 cell S grooves

13 fixed mount C connectors

14 connecting hole D orientations

2 fixing band W widths

21 connecting portion L length directions

Detailed description of the invention

Describe battery modules of the present utility model with reference to the accompanying drawings in detail.

Referring to figs. 1 through Fig. 6, include according to battery modules of the present utility model: multiple battery units 1, It is sequentially arranged to form set of cells M along orientation D；Fixing band 2, around set of cells M along arrangement The side of the end face of D both sides, direction and in the width direction W both sides, with by the plurality of battery unit 1 It is fixed together；Wherein, the side of each battery unit 1 W both sides in the width direction has groove S, institute The groove S stating multiple battery unit 1 forms the fixing passage P of set of cells M, and fixing band 2 is looped around The partial receipt of the side of set of cells M is in fixing passage P.

According in battery modules of the present utility model, fixing band 2 is around the outside of set of cells M, therefore Multiple battery units 1 of composition set of cells M can be held tightly, it is to avoid battery unit 1 is inclined when being impacted Move, slide, improve the structural strength of battery modules self；Owing to the partial receipt of fixing band 2 is solid In routing P, reduce the space taking battery modules, improve the integrated level of battery modules, it addition, Fixing passage P can also improve the bonding strength of fixing band 2 and set of cells M, it is to avoid fixing band 2 is from electricity Come off in group M of pond；Meanwhile, the space that fixing band 2 takies is little, additionally it is possible to for battery modules reserve with The fixed structure of external connection and heat dissipation interface.Additionally, according in battery modules of the present utility model, Without using single end plate and the module framework of side plate composition, thus simplify structure and decrease part Quantity, is conducive to improving the energy density of battery modules.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 2, each battery unit 1 Including: heat sink 11；Cell 12, at least an end face along orientation D are fixed on heat radiation On plate 11；And two fixed mounts 13, heat sink 11 and battery unit 1 are clamped in two fixed mounts Between 13.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 2, the one of heat sink 11 Part is positioned at the outside of corresponding fixed mount 13 W in the width direction.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 2, each battery unit 1 Groove S formed on the side of fixed mount 13 W in the width direction of each battery unit 1.Due to solid The part of the side determining frame 13 W in the width direction is covered by heat sink 11, therefore groove S formed in The part that fixed mount 13 is not covered by heat sink 11.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 2, each battery unit 1 Groove S formed in each battery unit 1 heat sink 11 be positioned at corresponding fixed mount 13 in the width direction In this part in the outside of W.Fixing band 2 is looped around in the groove S of heat sink 11, the space taken Little, do not interfere with the proper heat reduction of heat sink 11.

In the embodiment according to battery modules of the present utility model, fixing band 2 is one, and fixing Central authorities at set of cells M L along its length.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 2, fixing band 2 is many Individual, and the central symmetry of the relative set of cells M L along its length of each fixing band 2.Symmetrical structure can Improve the stability that battery modules is overall.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 3 to Fig. 5, fixing band 2 list structures being integrated.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 3 to Fig. 5, fixing band The 2 fixing connections of first and last end after set of cells M.

In the embodiment according to battery modules of the present utility model, fixing band 2 is made of metal；Ginseng According to Fig. 3, the first and last end of fixing band 2 is by being welded and fixed.Described welding can be laser welding or ultrasound wave Welding.

In the embodiment according to battery modules of the present utility model, fixing band 2 is made of plastics；Ginseng According to Fig. 3, the first and last end of fixing band 2 connects fixing by hot pressing.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 4, the head of fixing band 2 End is fixing by snapping connection.The assembling process of this kind of mode is simple, and efficiency of assembling is high.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 5, the head of fixing band 2 End is bent to form connecting portion 21；Accordingly, the first and last end of fixing band 2 is bolted fixing.Spiral shell Although it is comparatively laborious to tether the mode assembling process connect, but technological requirement is low.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 6, fixing band 2 is by many Individual list structure is formed by connecting.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 6, adjacent strip knot Structure by welding, snap connection or bolt is connected and fixed.

In the embodiment according to battery modules of the present utility model, see figures.1.and.2, battery list The corner of unit 1 has connecting hole 14, wears described battery modules is fixed to outside for connector C Casing.

In the embodiment according to battery modules of the present utility model, with reference to Fig. 1, fixing band 2 houses Part in fixing passage P does not protrude from fixing passage P.Battery unit 1 W both sides in the width direction Side to connect or contact (such as, the hot channel of outside or other radiating part with outside parts Part), the part being housed in fixing passage P due to fixing band 2 does not protrude from fixing passage P, therefore, Fixing band 2 will not be with outside component interference.

In the embodiment according to battery modules of the present utility model, cell 12 is soft-package battery.

Claims

1. a battery modules, including:

Multiple battery units (1), are sequentially arranged to form set of cells (M) along orientation (D)；

It is characterized in that,

Described battery modules also includes:

Fixing band (2), around set of cells (M) along the end face of orientation (D) both sides and along width The side of direction (W) both sides, to be fixed together the plurality of battery unit (1)；

The side of each battery unit (1) (W) both sides in the width direction has groove (S), described many The groove (S) of individual battery unit (1) forms the fixing passage (P) of set of cells (M), and fixing Band (2) is looped around the partial receipt of the side of set of cells (M) in fixing passage (P).

Battery modules the most according to claim 1, it is characterised in that each battery unit (1) including:

Heat sink (11)；

Cell (12), at least an end face along orientation (D) are fixed on heat sink (11) On；And

Two fixed mounts (13), are clamped in heat sink (11) and battery unit (1) two and fix Between frame (13).

Battery modules the most according to claim 2, it is characterised in that of heat sink (11) Divide the outside being positioned at corresponding fixed mount (13) (W) in the width direction.

Battery modules the most according to claim 3, it is characterised in that

The groove (S) of each battery unit (1) is formed at the fixed mount (13) of each battery unit (1) In the width direction on the side of (W)；And/or

The groove (S) of each battery unit (1) is formed at the heat sink (11) of each battery unit (1) The outside being positioned at corresponding fixed mount (13) (W) in the width direction this part on.

Battery modules the most according to claim 1, it is characterised in that fixing band (2) is integrated List structure.

Battery modules the most according to claim 5, it is characterised in that fixing band (2) is around battery Group (M) first and last end afterwards is fixing to be connected.

Battery modules the most according to claim 6, it is characterised in that

Fixing band (2) is made of metal, and the first and last end of fixing band (2) is by being welded and fixed；Or

Fixing band (2) is made of plastics, and the first and last end of fixing band (2) connects fixing by hot pressing； Or

The first and last end of fixing band (2) is fixing by snapping connection；Or

The first and last end of fixing band (2) is bent to form connecting portion (21), and the first and last end of fixing band (2) It is bolted fixing.

Battery modules the most according to claim 1, it is characterised in that fixing band (2) is by multiple List structure is formed by connecting.

Battery modules the most according to claim 1, it is characterised in that the corner of battery unit (1) There is connecting hole (14), wear described battery modules is fixed to the case of outside for connector (C) Body.

Battery modules the most according to claim 1, it is characterised in that fixing band (2) is housed in Part in fixing passage (P) does not protrude from fixing passage (P).