CN107240662B - High-safety battery module shell - Google Patents
High-safety battery module shell Download PDFInfo
- Publication number
- CN107240662B CN107240662B CN201710534314.3A CN201710534314A CN107240662B CN 107240662 B CN107240662 B CN 107240662B CN 201710534314 A CN201710534314 A CN 201710534314A CN 107240662 B CN107240662 B CN 107240662B
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- cavity
- explosion
- battery module
- module shell
- pipeline
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- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/383—Flame arresting or ignition-preventing means
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- 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
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- 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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/20—Pressure-sensitive devices
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a high-safety battery module shell, which comprises a battery module shell and a battery cell bracket arranged in the battery module shell, wherein an explosion-proof device is arranged on the upper surface of the battery module shell, the explosion-proof device comprises a first pipeline and a second pipeline, the second pipeline comprises a first channel and a second channel, first explosion-proof glass is arranged on the first channel, second explosion-proof glass is arranged on the second channel, when the battery cell is broken or exploded, a large amount of heat is generated in the battery module shell, and because the battery module shell is of a sealing structure, when the pressure of the battery module shell is increased by a certain value, the first explosion-proof glass is broken to reduce the pressure of the battery module shell, and if the condition is serious, the second explosion-proof glass is broken to further release the pressure; meanwhile, the size of the explosion-proof glass is smaller than that of the channel, and the explosion-proof glass can be replaced after being broken.
Description
Technical Field
The invention relates to the field of new energy batteries, in particular to a battery module shell with high safety performance.
Background
Three problems are faced in the current world, energy is short, carbon dioxide is excessively discharged, and air is polluted. The world petroleum resources in 2050 will be near exhaustion, and the crisis and exhaustion of non-renewable energy sources such as petroleum, coal, natural gas and the like will be inevitable. Excessive carbon dioxide emissions can cause a "greenhouse effect". The carbon dioxide emission reduction is focused on, the development of low-carbon economy is increasingly common to people, and the traditional fuel automobiles are difficult to meet the development of the times. The tail gas pollution brought by the traditional fuel oil automobile is one of the main sources of air pollution, and how to solve the problem of automobile tail gas is increasingly concerned by governments of various countries, so that new energy automobiles are generated. New energy automobiles are focused on by the government of China because of the characteristics of energy conservation, environmental protection, zero emission of tail gas and the like. And the new energy battery is used as a core component of the new energy automobile, and the requirements on safety and reliability are also higher and higher.
An existing battery module encapsulates a plurality of battery cells within a housing. In order to ensure the tightness of the battery module, the shell of the battery module is completely sealed, and when extreme conditions such as severe collision, rolling and the like occur, the battery monomer is easy to crack or even explode, so that the explosion of the whole battery module is initiated, and the safety of the battery module is not ensured.
Disclosure of Invention
In order to solve the problems existing in the prior art, the invention provides a battery module shell with high safety performance, which solves the potential safety hazard of a battery module.
The technical scheme for solving the problems is as follows: the battery module shell with high safety performance comprises a battery module shell and a battery cell support arranged in the battery module shell, wherein the upper surface of the battery cell support is contacted with the inner surface of the battery module shell, the lower surface of the battery cell support is contacted with the inner surface of the battery module shell, a first cavity, a second cavity, a third cavity and a fourth cavity are arranged between the battery cell support and the battery module shell, the first cavity and the third cavity are symmetrically distributed, the second cavity and the fourth cavity are symmetrically distributed, a first supporting rod is arranged in the first cavity, a second supporting rod is arranged in the second cavity, a third supporting rod is arranged in the third cavity, a fourth supporting rod is arranged in the fourth cavity, the number of the first supporting rod and the third supporting rod is 2, the number of the second supporting rod and the fourth supporting rod is 4, the adjacent second supporting rods are equidistantly arranged, and the adjacent fourth supporting rods are equidistantly arranged;
the battery cell support is of a cuboid structure, a plurality of battery cell grooves are formed in the battery cell support, the battery cell grooves are of a cylindrical structure, the battery cell grooves are distributed in a rectangular array, the bottoms of the battery cell grooves are provided with conductor grooves, the sections of the conductor grooves are rectangular, the conductor grooves are communicated with the battery cell grooves through fifth cavities, and the sections of the fifth cavities are rectangular;
the upper surface of battery module shell is equipped with explosion-proof equipment, and explosion-proof equipment includes first pipeline, second pipeline, and first pipeline is round platform shape hollow structure, and the cylindrical hollow structure of second pipeline, first pipeline, the inside intercommunication of second pipeline are equipped with the diaphragm in the second pipeline, and the second pipeline is cut apart into first passageway, second passageway through the diaphragm, and the height of first passageway is d1, and the height of second passageway is d2, and d1 < d2, and the opening part of first passageway is equipped with first recess, is equipped with first sealing washer in the first recess, is equipped with first explosion-proof glass groove on the first sealing washer, and first explosion-proof glass is arranged in the first explosion-proof glass groove, and the opening part of second passageway is equipped with the second recess, is equipped with the second sealing washer in the second recess, is equipped with the explosion-proof glass groove of second on the second sealing washer, and the explosion-proof glass of second is arranged in the explosion-proof glass groove of second.
The first pipe is communicated with the third cavity.
The first cavity, the second cavity, the third cavity and the fourth cavity are communicated.
The compressive strength of the first explosion-proof glass is smaller than that of the second explosion-proof glass.
The height of the first explosion-proof glass is d3, and d3 is less than d1.
The height of the second explosion-proof glass is d4, and d4 is less than d2.
The first sealing ring and the second sealing ring are made of high-elasticity silica gel.
The invention has the beneficial effects that: when the battery core is broken or exploded, a large amount of heat is generated in the battery module shell, and the pressure of the battery module shell is increased by a certain value because the battery module shell is of a sealing structure, the first explosion-proof glass is broken to reduce the pressure of the battery module shell, and if the situation is serious, the second explosion-proof glass is broken to further release the pressure; meanwhile, the size of the explosion-proof glass is smaller than that of the channel, and the explosion-proof glass can be replaced after being broken.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of section A-A of FIG. 1;
FIG. 3 is a schematic diagram of an explosion-proof device;
FIG. 4 is a schematic view of a first conduit opening;
in the figure: the battery module comprises a 1-battery module shell, a 2-battery cell support, a 3-first cavity, a 4-second cavity, a 5-third cavity, a 6-fourth cavity, a 7-first supporting rod, a 8-second supporting rod, a 9-third supporting rod, a 10-fourth supporting rod, a 11-battery cell groove, a 12-conductor groove, a 13-fifth cavity, a 14-first pipeline, a 15-second pipeline, a 16-diaphragm, a 17-first channel, a 18-second channel, a 19-first groove, a 20-first sealing ring, a 21-explosion-proof device, 22-first explosion-proof glass, 23-second groove, 24-second sealing ring and 26-second explosion-proof glass.
Detailed Description
The invention is further described with reference to the drawings and detailed description.
As shown in the figure, the battery module shell with high safety performance comprises a battery module shell and a battery cell support arranged in the battery module shell, wherein the upper surface of the battery cell support is contacted with the inner surface of the battery module shell, the lower surface of the battery cell support is contacted with the inner surface of the battery module shell, a first cavity, a second cavity, a third cavity and a fourth cavity are arranged between the battery cell support and the battery module shell, the first cavity and the third cavity are symmetrically distributed, the second cavity and the fourth cavity are symmetrically distributed, a first supporting rod is arranged in the first cavity, a second supporting rod is arranged in the second cavity, a third supporting rod is arranged in the third cavity, a fourth supporting rod is arranged in the fourth cavity, the number of the first supporting rod and the third supporting rod is 2, the number of the second supporting rod and the fourth supporting rod is 4, the adjacent second supporting rods are equidistantly arranged, and the adjacent fourth supporting rods are equidistantly arranged;
the battery cell support is of a cuboid structure, a plurality of battery cell grooves are formed in the battery cell support, the battery cell grooves are of a cylindrical structure, the battery cell grooves are distributed in a rectangular array, the bottoms of the battery cell grooves are provided with conductor grooves, the sections of the conductor grooves are rectangular, the conductor grooves are communicated with the battery cell grooves through fifth cavities, and the sections of the fifth cavities are rectangular;
the upper surface of battery module shell is equipped with explosion-proof equipment, and explosion-proof equipment includes first pipeline, second pipeline, and first pipeline is round platform shape hollow structure, and the cylindrical hollow structure of second pipeline, first pipeline, the inside intercommunication of second pipeline are equipped with the diaphragm in the second pipeline, and the second pipeline is cut apart into first passageway, second passageway through the diaphragm, and the height of first passageway is d1, and the height of second passageway is d2, and d1 < d2, and the opening part of first passageway is equipped with first recess, is equipped with first sealing washer in the first recess, is equipped with first explosion-proof glass groove on the first sealing washer, and first explosion-proof glass is arranged in the first explosion-proof glass groove, and the opening part of second passageway is equipped with the second recess, is equipped with the second sealing washer in the second recess, is equipped with the explosion-proof glass groove of second on the second sealing washer, and the explosion-proof glass of second is arranged in the explosion-proof glass groove of second.
The first pipe is communicated with the third cavity.
The first cavity, the second cavity, the third cavity and the fourth cavity are communicated.
The compressive strength of the first explosion-proof glass is smaller than that of the second explosion-proof glass.
The height of the first explosion-proof glass is d3, and d3 is less than d1.
The height of the second explosion-proof glass is d4, and d4 is less than d2.
The first sealing ring and the second sealing ring are made of high-elasticity silica gel.
According to the invention, the compressive strength of the first explosion-proof glass and the second explosion-proof glass can be selected according to actual conditions, and a plurality of explosion-proof devices can be arranged on the battery module shell.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (3)
1. The battery module shell is characterized by comprising a battery module shell and a battery cell support arranged in the battery module shell, wherein the upper surface of the battery cell support is contacted with the inner surface of the battery module shell, the lower surface of the battery cell support is contacted with the inner surface of the battery module shell, a first cavity, a second cavity, a third cavity and a fourth cavity are arranged between the battery cell support and the battery module shell, the first cavity and the third cavity are symmetrically distributed, the second cavity and the fourth cavity are symmetrically distributed, a first supporting rod is arranged in the first cavity, a second supporting rod is arranged in the second cavity, a third supporting rod is arranged in the third cavity, a fourth supporting rod is arranged in the fourth cavity, the number of the first supporting rod and the third supporting rod is 2, the number of the second supporting rod and the fourth supporting rod is 4, the adjacent second supporting rods are equidistantly arranged, and the adjacent fourth supporting rods are equidistantly arranged;
the battery cell support is of a cuboid structure, a plurality of battery cell grooves are formed in the battery cell support, the battery cell grooves are of a cylindrical structure, the battery cell grooves are distributed in a rectangular array, the bottoms of the battery cell grooves are provided with conductor grooves, the sections of the conductor grooves are rectangular, the conductor grooves are communicated with the battery cell grooves through fifth cavities, and the sections of the fifth cavities are rectangular;
the upper surface of the battery module shell is provided with an explosion-proof device, the explosion-proof device comprises a first pipeline and a second pipeline, the first pipeline is of a round table-shaped hollow structure, the second pipeline is of a cylindrical hollow structure, the first pipeline and the second pipeline are internally communicated, a diaphragm is arranged in the second pipeline, the second pipeline is divided into a first channel and a second channel through the diaphragm, the height of the first channel is d1, the height of the second channel is d2, d1 is less than d2, the opening of the first channel is provided with a first groove, a first sealing ring is arranged in the first groove, a first explosion-proof glass groove is arranged on the first sealing ring, the first explosion-proof glass is positioned in the first explosion-proof glass groove, a second groove is arranged at the opening of the second channel, a second sealing ring is arranged in the second groove, and the second explosion-proof glass groove is arranged on the second sealing ring;
the first pipeline is communicated with the third cavity, the first cavity, the second cavity, the third cavity and the fourth cavity are communicated, the compressive strength of the first explosion-proof glass is smaller than that of the second explosion-proof glass, and the height of the first explosion-proof glass is d3, and d3 is smaller than d1.
2. The high safety battery module case according to claim 1, wherein the second explosion-proof glass has a height d4, d4 < d2.
3. The battery module housing of claim 1, wherein the first seal ring and the second seal ring are both made of high-elasticity silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534314.3A CN107240662B (en) | 2017-07-03 | 2017-07-03 | High-safety battery module shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534314.3A CN107240662B (en) | 2017-07-03 | 2017-07-03 | High-safety battery module shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107240662A CN107240662A (en) | 2017-10-10 |
| CN107240662B true CN107240662B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710534314.3A Active CN107240662B (en) | 2017-07-03 | 2017-07-03 | High-safety battery module shell |
Country Status (1)
| Country | Link |
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| CN (1) | CN107240662B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048053B (en) * | 2019-04-10 | 2022-03-25 | 常州微宙电子科技有限公司 | Housing for an energy storage device and energy storage device |
| CN112002848B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
| CN112002849B (en) * | 2020-07-14 | 2022-11-25 | 华瑞矿业科技有限公司 | Explosion-proof battery |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000164203A (en) * | 1998-11-27 | 2000-06-16 | Kyocera Corp | Safety device and manufacture thereof, and secondary battery using the same |
| CN201725823U (en) * | 2010-05-04 | 2011-01-26 | 广州捷力新能源科技有限公司 | Multifunctional battery shell explosion-proof device with integrated cover plate |
| JP2011054409A (en) * | 2009-09-01 | 2011-03-17 | Nissan Motor Co Ltd | Gas discharge device of battery pack |
| CN202308124U (en) * | 2011-10-28 | 2012-07-04 | 比亚迪股份有限公司 | Battery explosion-proof device and battery pack thereof |
| CN204732461U (en) * | 2015-07-01 | 2015-10-28 | 深圳市慧通天下科技股份有限公司 | Anti-explosion battery box |
| CN106683826A (en) * | 2017-02-22 | 2017-05-17 | 江苏宝亨新电气有限公司 | High-safety oil-immersed type transformer |
| CN207116557U (en) * | 2017-07-03 | 2018-03-16 | 系统电子科技（镇江）有限公司 | A kind of battery modules shell of high safety performance |
-
2017
- 2017-07-03 CN CN201710534314.3A patent/CN107240662B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000164203A (en) * | 1998-11-27 | 2000-06-16 | Kyocera Corp | Safety device and manufacture thereof, and secondary battery using the same |
| JP2011054409A (en) * | 2009-09-01 | 2011-03-17 | Nissan Motor Co Ltd | Gas discharge device of battery pack |
| CN201725823U (en) * | 2010-05-04 | 2011-01-26 | 广州捷力新能源科技有限公司 | Multifunctional battery shell explosion-proof device with integrated cover plate |
| CN202308124U (en) * | 2011-10-28 | 2012-07-04 | 比亚迪股份有限公司 | Battery explosion-proof device and battery pack thereof |
| CN204732461U (en) * | 2015-07-01 | 2015-10-28 | 深圳市慧通天下科技股份有限公司 | Anti-explosion battery box |
| CN106683826A (en) * | 2017-02-22 | 2017-05-17 | 江苏宝亨新电气有限公司 | High-safety oil-immersed type transformer |
| CN207116557U (en) * | 2017-07-03 | 2018-03-16 | 系统电子科技（镇江）有限公司 | A kind of battery modules shell of high safety performance |
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| Publication number | Publication date |
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| CN107240662A (en) | 2017-10-10 |
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