CN206076336U

CN206076336U - Battery bag

Info

Publication number: CN206076336U
Application number: CN201621129402.2U
Authority: CN
Inventors: 张上富
Original assignee: Contemporary Amperex Technology Co Ltd
Current assignee: Contemporary Amperex Technology Co Ltd
Priority date: 2016-10-17
Filing date: 2016-10-17
Publication date: 2017-04-05
Anticipated expiration: 2026-10-17

Abstract

The application is related to battery bag.The battery bag includes housing, at least two fixed parts and multiple batteries, the battery is encapsulated in the housing, the fixed part is arranged in the housing and for fixing the battery, the fixed part scattering device, and in fixed part described at least one, it is fixed with one or more described batteries.The thermal runaway phenomenon of battery is This improves, the failure risk of battery bag is reduced.

Description

Battery bag

Technical field

The application is related to cell art, more particularly to a kind of battery bag.

Background technology

Battery bag includes housing and battery modules, battery management system etc..Main composition of the battery modules for battery bag Part.

Battery modules are generally made up of multiple batteries, and multiple batteries are stacked along its thickness direction and regularly arrange It is listed in housing.As battery can generate heat in the course of the work, also, in battery modules battery arrangement Relatively centralized, heat Can mutually transmit between battery, easily cause thermal runaway and cause the failure of whole battery modules.

It is, therefore, desirable to provide a kind of improved plan solves drawbacks described above.

Utility model content

The embodiment of the present application provides a kind of battery bag, can reduce the failure risk of battery modules.

A kind of battery bag, including housing, at least two fixed parts and multiple batteries, the battery are encapsulated in the shell In vivo, the fixed part is arranged in the housing and for fixing the battery,

The fixed part scattering device, and in fixed part described at least one, it is fixed with one or more described batteries.

Preferably, the fixed part is holding tank, and the battery is fixed in the holding tank.

Preferably, also including dividing plate, the holding tank includes the first holding tank, and first holding tank is enclosed by the dividing plate Into.

Preferably, the housing includes diapire and side wall, and the holding tank also includes the second holding tank, and described second holds Groove of receiving is arranged on the junction of the diapire and the side wall, and is surrounded by the dividing plate and the side wall.

Preferably, in multiple batteries, battery described in a portion is arranged and is held along the bearing of trend of the side wall It is contained in second holding tank, and the major opposing side of the battery is fitted with the side wall.

Preferably, also including fixing glue, the battery is adhered to the fixed part by the fixing glue.

Preferably, also including connecting wire, the connecting wire is for exporting electric energy from the battery.

Preferably, the connecting wire includes sub- linkage section and total linkage section, the quantity of the sub- linkage section be it is multiple, respectively The battery is connected with each sub- linkage section respectively, and each sub- linkage section is connected with total linkage section.

Preferably, the connecting wire is flexible electrical conductors.

Preferably, also including temperature sampling line and/or circuit sampling line, the temperature sampling line and/or circuit sampling line It is connected with the connecting wire.

The technical scheme that the application is provided can reach following beneficial effect：

The embodiment of the present application provides a kind of battery bag, and battery bag includes housing, at least one fixed part and some electricity Pond.Fixed part is distributed across in housing, and is fixed with one or more battery at least one fixed part.It is arranged such Afterwards, battery dispersed placement in the housing, increases the gap between battery, reduces the failure risk of battery bag.

It should be appreciated that the general description of the above and detailed description hereinafter are only exemplary, this can not be limited Application.

Description of the drawings

Schematic diagram of the battery that Fig. 1 is provided for the embodiment of the present application in housing；

The schematic diagram of the housing that Fig. 2 is provided for the embodiment of the present application；

The schematic diagram of the battery that Fig. 3 is provided for the embodiment of the present application；

The schematic diagram of the connecting wire that Fig. 4 is provided for the embodiment of the present application.

Reference：

1- housings；

11- diapires；

12- sides wall；

2- fixed parts；

3- batteries；

31- males；

4- dividing plates；

5- connecting wires；

51- females；

6- temperature sampling lines；

7- circuit sampling lines.

During accompanying drawing herein is merged in description and the part of this specification is constituted, show the enforcement for meeting the application Example, and be used for explaining the principle of the application together with description.

Specific embodiment

Below by specific embodiment and combine accompanying drawing the application is described in further detail.

As shown in Figure 1-2, the embodiment of the present application provides a kind of battery bag, including housing 1, fixed part 2 and multiple electricity Pond 3, battery 3 are encapsulated in housing, and multiple batteries 3 can export electric energy in parallel or serial fashion as power source.

Fixed part 2 is arranged in housing 1, in order that 3 dispersed placement of battery, fixed part 2 at least two, two fixed parts 2 are respectively intended to self-contained battery 3.According to one embodiment, fixed part 2 could be arranged to the resilient clip in housing 1, bullet Property clamp is distributed across in housing 1, and battery 3 is fixedly clamped.In the present embodiment, in order to simplify structure, reduce in housing 1 Space hold, preferred fixed part 2 is the holding tank that is distributed across in housing 1, and battery 3 is respectively received in each holding tank.

Also, one or more battery 3 is fixed with each fixed part 2.Preferably, fixed in each fixed part 2 The quantity of battery 3 can be controlled within three, and it is possible to according to enclosure interior space exact arrangement to greatest extent Even dispersion arrangement battery 3.

Based on such scheme, when fixed part 2 is set at least two, together with the multiple cell stacks of prior art Situation is compared, and this multiple battery can be fixed respectively by the application by two fixed parts 2, so that multiple batteries 3 are divided Scatter and, reduce caloric value during 3 concentrated setting of battery, alleviate the phenomenon of battery bag thermal runaway.

Fixed part 2 can be arranged to two, three or more etc., and multiple fixed parts 2 cause battery 3 to put in battery bag The more dispersion put, further reduces the risk that thermal runaway occurs when multiple batteries 3 are stacked.

As shown in Fig. 2 housing 1 includes diapire 11, side wall 12 and roof (not shown), also, battery bag is also wrapped Dividing plate 4 is included, dividing plate 4 is connected with diapire 11.Holding tank includes the first holding tank (not shown) and the second holding tank, and first holds Groove of receiving is located at the middle part of diapire 11 and is surrounded by dividing plate 4, and the second holding tank is arranged on the junction of diapire 11 and side wall 12, And surrounded by dividing plate 4 and side wall 12.In the program, dividing plate 4 is greatly reinforced equivalent to the reinforcement arranged on housing 1 Housing 1 intensity of itself.And if adopting alternate manner, such as the mode for removing material arranges holding tank, then housing 1 can be caused The weakening of intensity.

For the space in effectively utilizes housing 1, battery 3 is placed with kinds of schemes.Its arrangement mode can be according to shell The concrete shape of body 1 selects to arrange.For example, in 1 structure of housing as shown in Figure 2, can be by wherein in multiple batteries 3 Percentage of batteries 3 is arranged along the bearing of trend of side wall 12, and the major opposing side of battery 3 is fitted with side wall 12.And correspondingly arrange In two holding tanks, and battery 3 is fixed in the second holding tank." major opposing side of battery 3 " said herein is referred to, when multiple batteries 3 through-thickness surface bonded to each other when stacking.

Certainly, due to the difference of body construction, the installing space of the battery bag reserved on car body is different, battery pack housing 1 Shape it is different.Therefore, when battery bag is designed, synthesis can be carried out according to the specification of customer requirement and battery 3, size etc. Assessment so that the design of battery bag is more reasonable.

The dress of battery 3 is fixed in holding tank, and its fixed form has various.For example, holding tank and 3 interference fits of battery Deng.In embodiment, preferred battery bag includes fixing glue (not shown), and fixing glue is filled in holding tank, and battery 3 is put Put in holding tank and compress in place, after gelling to be fixed is solid, battery 3 is adhesively fixed in holding tank.The fixed form letter It is single and fixed reliable.And more preferably, the fixing glue is heat-conducting glue, and when battery 3 generates heat, fixing glue can conduct heat, with scattered Thermal effect.

As shown in Figure 3-4, battery bag also includes connecting wire 5, and multiple batteries 3 are generally led by connection inside housing 1 Line 5 realizes serial or parallel connection, to realize the output of 3 electric energy of multiple batteries.

When multiple batteries 3 are connected in series, the male of unified specification can be respectively welded on the conducting terminal of multiple batteries 3 31, and the female 51 matched with male is set in connecting wire 5, male 31 is connected with female 51, realizes multiple batteries 3 Series connection.

When multiple batteries 3 are connected in parallel, can arrange connecting wire 5 includes sub- linkage section and total linkage section.Wherein, son connects The quantity for connecing section is multiple, and each battery 3 is connected with a sub- linkage section respectively, and then each sub- linkage section is connected with total linkage section again Connect, realize the parallel connection of multiple batteries 3.Realize that using a connecting wire 5 quantity of the battery 3 of parallel connection can be selected as needed Arrange.

Also, as battery 3 is distributed across in housing 1, when connection of the connecting wire 5 with each battery 3, connecting wire 5 occur bending, for convenience the bending of connecting wire 5, are preferably flexible electrical conductors, such as metal knitted line etc..Connection When, connecting wire 5 can carry out appropriate adjustment according to the distance of battery 3.And, it is considered to assembly space is limited, can also in advance by Battery 3 is placed in housing 1 after being connected with connecting wire 5 again.

Additionally, in order to ensure 3 reliable output electric energy of battery, battery bag also includes temperature sampling line 6 and/or circuit sampling line 7, temperature sampling line 6 and/or circuit sampling line 7 are connected with connecting wire 5.Wherein, temperature can induced cell bag interior temperature using line Degree, the detectable electric current output of circuit sampling line etc., so as to improve the reliability of battery bag work.

The preferred embodiment of the application is the foregoing is only, the application is not limited to, for the skill of this area For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair Change, equivalent, improvement etc., should be included within the protection domain of the application.

Claims

1. a kind of battery bag, it is characterised in that including housing, at least two fixed parts and multiple batteries, the battery is sealed It is mounted in the housing, the fixed part is arranged in the housing and for fixing the battery,

2. battery bag according to claim 1, it is characterised in that the fixed part is holding tank, the battery is fixed on In the holding tank.

3. battery bag according to claim 2, it is characterised in that also including dividing plate, the holding tank includes the first receiving Groove, first holding tank are surrounded by the dividing plate.

4. battery bag according to claim 3, it is characterised in that the housing includes diapire and side wall, the receiving Groove also includes the second holding tank, and second holding tank is arranged on the junction of the diapire and the side wall, and by described Dividing plate and the side wall are surrounded.

5. battery bag according to claim 4, it is characterised in that in multiple batteries, battery described in a portion Bearing of trend along the side wall is arranged and is contained in second holding tank, and the major opposing side of the battery and the side wall Laminating.

6. the battery bag according to any one of claim 1-5, it is characterised in that also including fixing glue, the battery passes through The fixing glue is adhered to the fixed part.

7. the battery bag according to any one of claim 1-5, it is characterised in that also including connecting wire, the connection is led Line is for exporting electric energy from the battery.

8. battery bag according to claim 7, it is characterised in that the connecting wire includes sub- linkage section and total connection Section, the quantity of the sub- linkage section is multiple, and each battery is connected with each sub- linkage section respectively, and each sub- connection Total linkage section connection described in Duan Junyu.

9. battery bag according to claim 7, it is characterised in that the connecting wire is flexible electrical conductors.

10. battery bag according to claim 7, it is characterised in that also including temperature sampling line and/or circuit sampling line, The temperature sampling line and/or circuit sampling line are connected with the connecting wire.