CN106856231B - Battery pack - Google Patents
Battery pack Download PDFInfo
- Publication number
- CN106856231B CN106856231B CN201510903042.0A CN201510903042A CN106856231B CN 106856231 B CN106856231 B CN 106856231B CN 201510903042 A CN201510903042 A CN 201510903042A CN 106856231 B CN106856231 B CN 106856231B
- Authority
- CN
- China
- Prior art keywords
- lower box
- flow channel
- battery pack
- coolant
- coolant flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention provides a battery pack, including: a lower box body; the battery modules are arranged on the lower box body; the heat conducting piece is arranged between the lower box body and the bottom of the battery module; and the upper box body is fixedly connected with the lower box body and accommodates all the battery modules. Wherein, the lower box body includes lower box body and apron. The lower box body has: the groove is arranged on the inner side of the lower box body, which is contacted with the battery module, or the outer side opposite to the inner side; and the partition plates are accommodated in the grooves to divide the grooves into cooling channels communicated with the outside. The cover plate is fixedly connected to the lower box body and seals the grooves and the cooling flow passages together with the lower box body and the corresponding plurality of partition plates. According to the battery pack, the cooling flow channel is arranged in the lower box body, so that the cooling structure of the battery pack is simplified, the leakage of cooling liquid is avoided to pollute the battery, the short circuit of the battery caused by the cooling liquid is prevented, and meanwhile, the strength of the box body of the battery pack is improved.
Description
Technical field
The present invention relates to field of batteries more particularly to a kind of battery packs.
Background technique
With the development of power battery technology, requirement of the electric car to power battery is more and more harsher, to battery pack
Energy density requirement is also higher and higher, and the requirement to power battery pack heat management level is also increasingly stringenter accordingly.Therefore electricity
Pond liquid cooling system becomes the trend of battery pack thermal management technology development.
The common design of battery liquid cooling system on existing market: coolant liquid is driven by liquid pump, coolant liquid flows in liquid pipe
Dynamic, liquid cooling pipeline is arranged in the cabinet of battery pack, and liquid cooling pipe is connected with water pipe head, and liquid cooling pipeline envisaged underneath supports knot
Structure.
Existing battery liquid cooling system has many places connection in the cabinet of battery pack, and structure is complicated, there is leakage risk,
Reliability is low.Liquid cooling pipe arrangement is limited by the limitation of battery pack cabinet body internal structure, leads to liquid cooling pipe pipeline section shape list
One.
Independent cooling system is at high cost, and cooling system occupies the inner space of battery pack, also to battery pack stress knot
Structure design causes great adverse effect.
Summary of the invention
In view of the problems in the background art, the purpose of the present invention is to provide a kind of battery packs, can simplify battery
The cooling structure of packet avoids coolant liquid leakage pollution battery and prevents coolant liquid from causing battery short circuit, while improving battery lodge
The intensity of body.
To achieve the goals above, the present invention provides a kind of battery packs comprising: lower box；Multiple battery modules, if
It is placed on lower box；Heat-conducting piece is set between lower box and the bottom of battery modules；And upper box, it is fixed with lower box
Connection, and accommodate all battery modules.
Lower box includes lower box ontology and cover board.
Lower box ontology includes groove, be set to inside that lower box ontology is contacted with battery modules or with the inside
Opposite outside；And multiple partitions, it is contained in groove so that groove is separated into the coolant flow channel being connected to outside.
Cover board is fixedly connected on lower box ontology, and will be recessed together with lower box ontology and corresponding the multiple partition
Slot and coolant flow channel closing.
Beneficial effects of the present invention are as follows:
In battery pack according to the present invention, groove is separated into the coolant flow channel being connected to outside by multiple partitions, and is covered
Plate closes groove and coolant flow channel, when flowing in coolant flow channel from external coolant liquid, to being arranged on lower box
Multiple battery modules cool down, and since coolant liquid is enclosed in the groove of lower box by partition, it is effectively prevented from cold
But the single battery of the leakage pollution battery modules of liquid, and prevent coolant liquid from causing single battery short-circuit；Coolant flow channel is by multiple
Groove is separated by partition, does not need excessive connection structure, and coolant flow channel is arranged in lower box rather than lower box
Between battery modules, the cooling structure of battery pack can be simplified in this way, reduce cost；Meanwhile lower box and upper box is upper
Lower connection, can be improved the intensity of battery pack cabinet.
Detailed description of the invention
Fig. 1 is the perspective view of battery pack according to the present invention；
Fig. 2 is the perspective view of the lower box of an embodiment of battery pack according to the present invention, and further groove is set to nowel
The outside of body；
Fig. 3 is the perspective view of the lower box of another embodiment of battery pack according to the present invention, and further groove is set to down
The inside of cabinet；
Fig. 4 is the lower box of battery pack according to the present invention and the cooperation schematic diagram of upper box；
Fig. 5 is the schematic diagram of the series connection coolant flow channel of battery pack according to the present invention；
Fig. 6 is the schematic diagram of the coolant flow channel in parallel of battery pack according to the present invention.
Wherein, the reference numerals are as follows:
1 lower box, 115 cooling liquid outlet
11 sides lower box ontology 116A high
111 groove 116B low side surfaces
112 partition, 12 cover board
113 coolant flow channel, 2 battery modules
1131 series connection 3 heat-conducting pieces of coolant flow channel
1132 4 upper boxes of coolant flow channel in parallel
11321 total 41 low side surfaces of input duct
The 11322 high sides of total delivery channel 42
11323 runners in parallel
114 coolant inlets
Specific embodiment
Carry out the battery pack that the present invention will be described in detail with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 6, battery pack according to the present invention includes: lower box 1；Multiple battery modules 2, are set to nowel
On body 1；Heat-conducting piece 3 is set between lower box 1 and the bottom of battery modules 2；And upper box 4, with the fixed company of lower box 1
It connects, and accommodates all battery modules 2.
Lower box 1 includes lower box ontology 11 and cover board 12.
Lower box ontology 11 includes groove 111, be set to inside that lower box ontology 11 is contacted with battery modules 2 or with
The opposite outside in the inside；And multiple partitions 112, it is contained in groove 111 and is connected to being separated into groove 111 with outside
Coolant flow channel 113.
Cover board 12 is fixedly connected on lower box ontology 11, and with lower box ontology 11 and corresponding the multiple partition
112 together close groove 111 and coolant flow channel 113.
It remarks additionally herein, referring to Fig.1, each battery modules 2 itself have shell (not shown), and receiving is more in shell
A single battery (not shown) being arranged side by side.
In battery pack according to the present invention, groove 111 is separated into the coolant flow channel 113 of connection by multiple partitions 112, and
Cover board 12 closes groove 111 and coolant flow channel 113, when flowing in coolant flow channel 11 from external coolant liquid, to setting
Multiple battery modules 2 on lower box 1 cool down, and since coolant liquid is enclosed in the recessed of lower box 1 by partition 12
In slot 111, it is effectively prevented from the single battery of the leakage pollution battery modules of coolant liquid, and prevents coolant liquid from causing single battery
Short circuit；Groove 111 is separated by coolant flow channel 113 by multiple partitions 112, does not need excessive connection structure, and cooling stream
The setting of road 113 is in the cooling knot that in lower box 1 rather than between lower box 1 and battery modules 2, can simplify battery pack in this way
Structure reduces cost；Meanwhile lower box 1 and upper box 4 are vertically connected with, and can be improved the intensity of battery pack cabinet.
In battery pack according to the present invention, referring to Fig. 2, Fig. 3, Fig. 5 and Fig. 6, in one embodiment, lower box ontology
11 also include coolant inlet 114, and one end is connected to one end of coolant flow channel 113, the supply coolant liquid of the other end and outside
The connection of coolant liquid feeding pipe (not shown)；And cooling liquid outlet 115, it is connected to the other end of coolant flow channel 113, the other end
It is connected to external coolant liquid discharge line (not shown).The cooling line of external supply coolant liquid is via coolant inlet
114 are supplied to coolant liquid in coolant flow channel 113, and the coolant liquid in coolant flow channel 113 is via cooling liquid outlet 115 and outside
Coolant liquid discharge line discharge.
In battery pack according to the present invention, in one embodiment, lower box 1 can by aluminium alloy or magnesium alloy pressure-casting and
At.
In battery pack according to the present invention, in one embodiment, heat-conducting piece 3 can be heat-conducting glue or heat conductive pad.
In battery pack according to the present invention, referring to Fig.1, in one embodiment, heat-conducting piece 3 be it is multiple, each heat-conducting piece 3 is set
It is placed between lower box 1 and the bottom of a corresponding battery modules 2.
In battery pack according to the present invention, in one embodiment, upper box 4 can be made of composite material.
In battery pack according to the present invention, referring to figs. 1 to Fig. 3, in one embodiment, there are four the tools of lower box ontology 11
Side.
In battery pack according to the present invention, referring to Figures 1 and 2, in one embodiment, coolant inlet 114 and cooling
Liquid outlet 115 is set on a side of lower box ontology 11.
In battery pack according to the present invention, referring to figs. 1 to Fig. 4, in one embodiment, four sides of lower box ontology 11
One in face for high side 116A and its excess-three side is low side surface 116B, the height that high side 116A is erected is higher than three
Low side surface 116B.
In battery pack according to the present invention, referring to Fig. 2 and Fig. 3, in one embodiment, coolant inlet 114 and cooling
Liquid outlet 115 is set on the high side 116A of lower box ontology 11.
In battery pack according to the present invention, referring to Fig.1 and Fig. 4, in one embodiment, upper box 4 includes a downside
Face 41, it is opposite with the high side 116A of lower box ontology 11；And three high side 42, respectively with three of lower box ontology 11
Low side surface 116B is opposite.In battery pack according to the present invention, referring to Fig.1 and Fig. 4, in one embodiment, lower box ontology 11
High side 116A and three low side surface 116B form a L-type structures, when connecting with upper box 4, this L-type structure can have
The bonding strength of enhancing the lower box ontology 11 and upper box 4 of effect.
In battery pack according to the present invention, in one embodiment, the high side 116A of lower box ontology 11 is set with outside
Standby (not shown) is electrically connected.
In battery pack according to the present invention, in one embodiment, the height of the high side 116A of box-like body 11 can be
80mm~300mm.
In battery pack according to the present invention, in one embodiment, the height of the low side surface 116B of lower box ontology 11 can
For 20mm~100mm.
In battery pack according to the present invention, in one embodiment, the width of coolant flow channel 113 can be 10mm~120mm.
In battery pack according to the present invention, in one embodiment, the depth of coolant flow channel 113 can be 2mm~15mm.
In battery pack according to the present invention, in one embodiment, the width of partition 112 can be 1.0mm~20mm.
In battery pack according to the present invention, referring to Fig. 5, in one embodiment, the cooling stream that multiple partitions 112 are separated into
Road 113 can be series connection coolant flow channel 1131；Accordingly, coolant inlet 114 is connected to the one end for coolant flow channel 1131 of connecting, cold
But liquid outlet 115 is connected to the other end for coolant flow channel 1131 of connecting.
In battery pack according to the present invention, in one embodiment, the equivalent width for coolant flow channel 1131 of connecting.
In battery pack according to the present invention, referring to Fig. 6, in one embodiment, the cooling stream that multiple partitions 112 are separated into
Road 113 is coolant flow channel 1132 in parallel；Accordingly, coolant flow channel 1132 in parallel includes: a total input duct 11321, and cold
But liquid entrance 114 is connected to；One total delivery channel 11322, is connected to cooling liquid outlet 115；And multiple runners in parallel
11323, it is connected to total input duct 11321 and total delivery channel 11322.
In battery pack according to the present invention, in one embodiment, the equivalent width of multiple parallel connection runners 11323.
In battery pack according to the present invention, in one embodiment, the width of multiple parallel connection runners 11323 is inconsistent.
In battery pack according to the present invention, referring to Fig. 6, in one embodiment, partition 112 is respectively at total inlet flow
The both ends of road 11321 and total delivery channel 11322 are respectively facing total input duct 11321 and total delivery channel 11322 tilts, with
Coolant liquid is guided.
In battery pack according to the present invention, in one embodiment, the height of partition 112 is identical as the depth of groove 111.
In battery pack according to the present invention, in one embodiment, the coolant liquid is the mixing of distilled water and ethylene glycol
Object.
Claims (7)
1. a kind of battery pack, comprising:
Lower box (1)；
Multiple battery modules (2), are set on lower box (1)；
Heat-conducting piece (3) is set between lower box (1) and the bottom of battery modules (2)；And
Upper box (4) is fixedly connected with lower box (1), and accommodates all battery modules (2)；
It is characterized in that,
Lower box (1) includes:
Lower box ontology (11), comprising:
Groove (111) is set to inside that lower box ontology (11) is contacted with battery modules (2) or opposite with the inside outer
Side；And
Multiple partitions (112) are contained in groove (111) so that groove (111) is separated into the coolant flow channel being connected to outside
(113)；And
Cover board (12) is fixedly connected on lower box ontology (11), and with lower box ontology (11) and it is corresponding it is the multiple every
Plate (112) together closes groove (111) and coolant flow channel (113)；
Lower box ontology (11) also has coolant inlet (114) and cooling liquid outlet (115)；The one of coolant inlet (114)
End is connected to one end of coolant flow channel (113), and the other end is connected to the coolant liquid feeding pipe of external supply coolant liquid；It is cooling
One end of liquid outlet (115) is connected to the other end of coolant flow channel (113), the other end and the outside of cooling liquid outlet (115)
The connection of coolant liquid discharge line；
There are four sides for lower box ontology (11) tool；Coolant inlet (114) and cooling liquid outlet (115) are set to lower box sheet
On one side of body (11)；
One in four sides of lower box ontology (11) for high side (116A) and its excess-three side is low side surface
(116B), the height that high side (116A) erects are higher than three low side surfaces (116B)；Coolant inlet (114) and cooling
Liquid outlet (115) is set to high side (116A).
2. battery pack according to claim 1, which is characterized in that
The width of coolant flow channel (113) is 10mm~120mm；
The depth of coolant flow channel (113) is 2mm~15mm；
The width of partition (112) is 1.0mm~20mm.
3. battery pack according to claim 1, which is characterized in that
The coolant flow channel (113) that multiple partitions (112) are separated into is series connection coolant flow channel (1131)；
Coolant inlet (114) is connected to one end of coolant flow channel of connecting (1131), and cooling liquid outlet (115) is flowed with cooling of connecting
The other end in road (1131) is connected to.
4. battery pack according to claim 3, which is characterized in that the equivalent width of series connection coolant flow channel (1131).
5. battery pack according to claim 1, which is characterized in that
The coolant flow channel (113) that multiple partitions (112) are separated into is coolant flow channel (1132) in parallel；
Coolant flow channel (1132) in parallel includes:
One total input duct (11321), is connected to coolant inlet (114)；
One total delivery channel (11322), is connected to cooling liquid outlet (115)；And
Multiple parallel connection runners (11323), are connected to total input duct (11321) and total delivery channel (11322).
6. battery pack according to claim 5, which is characterized in that
The equivalent width of multiple parallel connection runners (11323)；Or
The width of multiple parallel connection runners (11323) is inconsistent.
7. battery pack according to claim 5, which is characterized in that partition (112) is respectively at total input duct
(11321) and the both ends of total delivery channel (11322) are respectively facing total input duct (11321) and total delivery channel (11322)
Inclination, to be guided to coolant liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903042.0A CN106856231B (en) | 2015-12-09 | 2015-12-09 | Battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510903042.0A CN106856231B (en) | 2015-12-09 | 2015-12-09 | Battery pack |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106856231A CN106856231A (en) | 2017-06-16 |
| CN106856231B true CN106856231B (en) | 2019-09-17 |
Family
ID=59132348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510903042.0A Active CN106856231B (en) | 2015-12-09 | 2015-12-09 | Battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106856231B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109428022A (en) * | 2017-08-31 | 2019-03-05 | 宁德时代新能源科技股份有限公司 | battery module and battery pack |
| CN108091803B (en) * | 2018-01-18 | 2024-03-29 | 杭州捷能科技有限公司 | Integrated cooling heat-preserving battery system and control method thereof |
| CN108258165B (en) * | 2018-01-22 | 2024-05-07 | 华霆（合肥）动力技术有限公司 | Battery box, battery box manufacturing method and battery system |
| CN108682917B (en) * | 2018-05-03 | 2020-10-30 | 惠州亿纬锂能股份有限公司 | Liquid cooling box and battery module |
| CN109950654B (en) * | 2019-03-22 | 2024-10-08 | 宝德(上海)科技有限公司 | Battery cooling device |
| CN110429359B (en) * | 2019-08-05 | 2024-09-24 | 江苏远致达轨道交通发展有限公司 | Power battery and battery compartment cooling device of new energy bus |
| CN112542632A (en) * | 2020-12-24 | 2021-03-23 | 湖北亿纬动力有限公司 | Liquid cooling battery box and battery package |
| CN113437391A (en) * | 2021-06-25 | 2021-09-24 | 湖北亿纬动力有限公司 | Box structure and battery |
| CN113471606A (en) * | 2021-07-01 | 2021-10-01 | 广州小鹏汽车科技有限公司 | Battery box body, battery pack and assembly method of battery box body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157715A (en) * | 2011-03-16 | 2011-08-17 | 东莞新能源科技有限公司 | Battery pack |
| CN102544402A (en) * | 2010-12-30 | 2012-07-04 | 上海航天电源技术有限责任公司 | Liquid cooling device of power battery pack system |
| CN103367835A (en) * | 2013-07-18 | 2013-10-23 | 三门峡速达交通节能科技股份有限公司 | Power battery thermal management system based on loop heat pipes |
| CN104538664A (en) * | 2014-12-21 | 2015-04-22 | 北京工业大学 | Cooling system with heat transfer enhancement effect and capable of effectively maintaining temperature uniformity of galvanic pile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881959B (en) * | 2012-09-29 | 2014-06-25 | 湖北绿驰科技有限公司 | Water-cooled heat management system of electric automobile battery pack |
-
2015
- 2015-12-09 CN CN201510903042.0A patent/CN106856231B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544402A (en) * | 2010-12-30 | 2012-07-04 | 上海航天电源技术有限责任公司 | Liquid cooling device of power battery pack system |
| CN102157715A (en) * | 2011-03-16 | 2011-08-17 | 东莞新能源科技有限公司 | Battery pack |
| CN103367835A (en) * | 2013-07-18 | 2013-10-23 | 三门峡速达交通节能科技股份有限公司 | Power battery thermal management system based on loop heat pipes |
| CN104538664A (en) * | 2014-12-21 | 2015-04-22 | 北京工业大学 | Cooling system with heat transfer enhancement effect and capable of effectively maintaining temperature uniformity of galvanic pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106856231A (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106856231B (en) | Battery pack | |
| CN209357799U (en) | A kind of battery pack | |
| US20120052358A1 (en) | Energy storage device | |
| CN110994068A (en) | Integrated power battery cooling structure and power battery | |
| CN102916234A (en) | Battery pack liquid cooling system | |
| US20220285759A1 (en) | Battery Module and Battery Pack Including the Same | |
| CN219203262U (en) | Liquid cooling subassembly and battery package | |
| CN216288649U (en) | Liquid cooling energy storage battery package | |
| CN220796893U (en) | Battery module and battery pack | |
| CN220021394U (en) | Battery pack, battery tray and electric device | |
| CN219959153U (en) | Air-cooled battery pack and energy storage system comprising same | |
| CN109786885A (en) | Battery module | |
| CN219144347U (en) | High-capacity battery shell and high-capacity battery | |
| CN101651228A (en) | Lithium ion single battery modularized combination structure | |
| CN111900510A (en) | Partitioned cooling device for lithium ion battery of electric forklift | |
| CN116666826A (en) | Immersed liquid cooling battery pack structure | |
| CN217656011U (en) | Battery module | |
| CN116169415A (en) | Battery box and battery pack | |
| US20230216149A1 (en) | Battery Module and Manufacturing Method Thereof | |
| TWM477680U (en) | Battery module | |
| CN218783136U (en) | Battery pack | |
| CN220272594U (en) | High-integration liquid cooling box structure | |
| CN219106271U (en) | Module assembly and battery | |
| CN206076437U (en) | Set of cells radiator | |
| CN218783174U (en) | Battery pack |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |