CN109037546A - Explosion-proof device of battery system - Google Patents
Explosion-proof device of battery system Download PDFInfo
- Publication number
- CN109037546A CN109037546A CN201810687153.6A CN201810687153A CN109037546A CN 109037546 A CN109037546 A CN 109037546A CN 201810687153 A CN201810687153 A CN 201810687153A CN 109037546 A CN109037546 A CN 109037546A
- Authority
- CN
- China
- Prior art keywords
- explosion
- substrate
- outer housing
- battery system
- accommodating chamber
- 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.)
- Granted
Links
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 18
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007731 hot pressing Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H01M50/30—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
-
- 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
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
- H01M50/333—Spring-loaded vent valves
-
- 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
- H01M50/35—Gas exhaust passages comprising elongated, tortuous or labyrinth-shaped exhaust passages
-
- 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)
- Battery Mounting, Suspending (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention discloses an explosion-proof device of a battery system, which comprises: shell body, explosion-proof pressure release subassembly and protective cover, wherein: a specific accommodating cavity is arranged in the outer shell, a ventilation opening is formed in the bottom of the accommodating cavity, and a waterproof and breathable film is arranged at the ventilation opening; the explosion-proof pressure relief assembly is positioned in the accommodating cavity and comprises a base plate, a bracket, a guide pillar, a spring and a baffle plate; the base plate is fixedly connected with the outer shell, a groove is formed in the middle of the base plate, and an air leakage hole is formed in the bottom of the groove; the bracket is positioned on one side of the groove close to the air leakage hole and is fixed with the substrate; the guide post is positioned in the groove, and one end of the guide post penetrates through the bracket and extends into the air leakage hole; the spring is sleeved on the guide post; the baffle is fixedly connected with the guide pillar through a threaded connecting piece to form a sealing cover for the air leakage hole; the protective cover is fixedly connected with the outer shell to form a cover for the ventilation opening, and the protective cover is provided with a plurality of through holes. The invention can act automatically without human intervention, to confirm the safety of battery.
Description
Technical field
The present invention relates to battery manufacturing equipment technical field more particularly to a kind of battery system explosion-protection equipments.
Background technique
In battery system use process, due to the defects of battery manufacturing process, there are the self discharge even wind of internal short-circuit
Danger.When internal short-circuit occurs for battery, battery moment generates a large amount of high-temperature flue gas, and it is easily on fire such as to encounter fresh air.Therefore electricity
Cell system just needs to guarantee waterproof performance in normal operating condition, while flue gas can effectively be discharged at the time of emergency, simultaneously
Air enters during preventing battery from erupting.
Summary of the invention
Technology based on the above background, the present invention propose a kind of battery system explosion-protection equipment.
The invention proposes a kind of battery system explosion-protection equipments, comprising: outer housing, explosion-proof relief component and protective cover,
In:
Specific accommodating chamber inside outer housing, and the one end open of accommodating chamber, to form port, the bottom of accommodating chamber, which is equipped with, to be passed through
Logical ventilation mouth is equipped with waterproof ventilated membrane at ventilation mouth；
Explosion-proof relief component is located at accommodating chamber, and explosion-proof relief component includes substrate, bracket, guide post, spring and baffle；Substrate
It is fixedly connected, is equipped with to accommodating chamber inner recess in the middle part of substrate to form groove at the port of outer housing and with outer housing,
The bottom of groove is equipped with the bleeder port being connected to accommodating chamber；Bracket is located at groove close to the side of bleeder port and fixes with substrate；
Guide post is located in groove, and one end of guide post passes through bracket and protrudes into bleeder port, and guide post is equipped with limited block far from one end of bracket；
Spring pocket on the guide post, and the both ends of spring respectively with bracket and limited block against；Baffle is located at bleeder port far from groove
Side simultaneously reclines with the outer wall of substrate, and baffle is connected through a screw thread part and is fixedly connected with the guide columns to form the envelope to bleeder port
Lid；
Protective cover is located at side of the ventilation mouth far from accommodating chamber and is fixedly connected with outer housing to be formed and be covered to ventilation mouth
Lid, and protective cover is equipped with several through-holes.
Preferably, the bottom of accommodating chamber and be located at ventilation mouth outside be equipped with the annular convex platform coaxially arranged with ventilation mouth,
Waterproof ventilated membrane is located at the inside of annular convex platform and posts and fixes with the bottom of accommodating chamber, and the thickness of waterproof ventilated membrane is less than
The height of annular convex platform.
Preferably, waterproof ventilated membrane is fixed by way of hot pressing with outer housing.
Preferably, outer housing is formed by plastic production, and outer housing is embedded with metal insert inside forming process and its；
Substrate is fixedly connected with metal insert.
Preferably, substrate is connected through a screw thread part and is fixedly connected with metal insert.
Preferably, substrate is made by metal material.
Preferably, substrate is made by stainless steel.
Preferably, outer housing 1 is equipped with the sealing joint strip being circular layout around the port of accommodating chamber.
Preferably, protective cover is fixedly connected by way of clamping with outer housing.
In the present invention, it is configured by structure to outer housing, explosion-proof relief component and protective cover and installation site,
So that battery system, in the state of normal work, the waterproof ventilated membrane in the explosion-protection equipment can guarantee the waterproofness of system
Energy.When thermal runaway occurs for battery to utilize the gear in the smoke-shock lid explosion-protection equipment of generation when moment generating a large amount of flue gases
Plate makes to generate spacing between baffle and substrate, so that the access that loses heart is formed between substrate and baffle, it is discouraged to cause air flow through
Hole enters accommodating chamber, and accommodating chamber air pressure inside is caused to increase, so that waterproof ventilated membrane ruptures, ventilation mouth is opened and extraneous shape
At access；And after battery thermal runaway stops, under the action of the spring, baffle resets so that bleeder port is closed again, prevents air
Into battery system, the generation of fire behavior is prevented.Therefore, the entirely autonomous movement of battery system explosion-protection equipment is not necessarily to human intervention,
Guarantee the safety in battery use process.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of battery system explosion-protection equipment proposed by the present invention；
Fig. 2 is a kind of exploded view of battery system explosion-protection equipment proposed by the present invention；
Fig. 3 is the structural schematic diagram of explosion-proof relief component described in a kind of battery system explosion-protection equipment proposed by the present invention；
Fig. 4 is a kind of assembling schematic diagram of battery system explosion-protection equipment proposed by the present invention.
Specific embodiment
In the following, technical solution of the present invention is described in detail by specific embodiment.
As shown in Figs 1-4, Fig. 1 is a kind of structural schematic diagram of battery system explosion-protection equipment proposed by the present invention；Fig. 2 is this
Invent a kind of exploded view of the battery system explosion-protection equipment proposed；Fig. 3 is a kind of battery system explosion-protection equipment proposed by the present invention
Described in explosion-proof relief component structural schematic diagram；Fig. 4 is that a kind of assembly of battery system explosion-protection equipment proposed by the present invention is shown
It is intended to.
Referring to Fig.1-4, a kind of battery system explosion-protection equipment that the embodiment of the present invention proposes, comprising: outer housing 1 explosion-proof is let out
Press component and protective cover 2, in which: the 1 specific accommodating chamber in inside of outer housing, and the one end open of accommodating chamber is accommodated with forming port
The bottom of chamber is equipped with the ventilation mouth of perforation, is equipped with waterproof ventilated membrane 3 at ventilation mouth.
Explosion-proof relief component is located at accommodating chamber, and explosion-proof relief component includes substrate 4, bracket 5, guide post 6, spring 7 and baffle
8；Substrate 4 is located at the port of outer housing 1 and is fixedly connected with outer housing 1, in the middle part of substrate 4 be equipped with to accommodating chamber inner recess with
Groove is formed, the bottom of groove is equipped with the bleeder port a being connected to accommodating chamber；Bracket 5 is located at groove close to the side of bleeder port a simultaneously
It is fixed with substrate 4；Guide post 6 is located in groove, and one end of guide post 6 passes through bracket 5 and protrudes into bleeder port a, and guide post 6 is far from bracket
5 one end is equipped with limited block；Spring 7 is sleeved on guide post 6, and the both ends of spring 7 respectively with bracket 5 and limited block against；Gear
Plate 8 is located at side of the bleeder port a far from groove and reclines with the outer wall of substrate 4, and baffle 8 is connected through a screw thread part and guide post 6
It is fixedly connected to form the capping to bleeder port a.Protective cover 2 is located at side of the ventilation mouth far from accommodating chamber and consolidates with outer housing 1
Fixed connection is to form the covering to ventilation mouth, and protective cover 2 is equipped with several through-holes.
The present invention works in this way, passes through the structure and installation to outer housing 1, explosion-proof relief component and protective cover 2
Position is configured, so that battery system, in the state of normal work, the waterproof ventilated membrane 3 in the explosion-protection equipment can guarantee
The waterproof performance of system.When thermal runaway occurs for battery prevented using the smoke-shock lid of generation when moment generating a large amount of flue gases
Baffle 8 in quick-fried device makes to generate spacing between baffle 8 and substrate 4, leads to be formed to lose heart between substrate 4 and baffle 8
Road enters accommodating chamber to cause air flow through bleeder port a, and accommodating chamber air pressure inside is caused to increase, so that waterproof ventilated membrane 3 is broken
It splits, ventilation mouth, which is opened, forms access with extraneous；And when battery thermal runaway stop after, spring 7 effect under, baffle 8 reset so that
Bleeder port a is closed again, is prevented air from entering battery system, is prevented the generation of fire behavior.Therefore, the battery system explosion-protection equipment is complete
Full autonomous action is not necessarily to human intervention, guarantees the safety in battery use process.
In addition, in the present embodiment, the bottom of accommodating chamber and the outside for being located at ventilation mouth are equipped with coaxially arranged with ventilation mouth
Annular convex platform 11, waterproof ventilated membrane 3 is located at the inside of annular convex platform 11 and posts and fixes with the bottom of accommodating chamber, and waterproof is saturating
The thickness of air film 3 is less than the height of annular convex platform 11.To protect waterproof ventilated membrane 3 using annular convex platform 11, avoid letting out
When stomata a is opened, baffle 8 touches the waterproof ventilated membrane 3.
In the present embodiment, waterproof ventilated membrane 3 is fixed with outer housing 1 by way of hot pressing, with enhance waterproof ventilated membrane 3 with
Fixed fastness and leakproofness between outer housing 1.
In the present embodiment, outer housing 1 is formed by plastic production, and outer housing 1 is embedded with gold inside forming process and its
Belong to inserts；Substrate 4 is fixedly connected with metal insert.
In the present embodiment, substrate 4 is made by metal material and is connected through a screw thread part and is fixedly connected with metal insert,
With easy to disassemble and replacement.
In the present embodiment, substrate 4 is made by stainless steel.
In the present embodiment, outer housing 1 is equipped with the sealing joint strip being circular layout around the port of accommodating chamber.
In the present embodiment, protective cover 2 is fixedly connected by way of clamping with outer housing 1, to facilitate the dismounting of protective cover 2
And replacement.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of battery system explosion-protection equipment characterized by comprising outer housing (1), explosion-proof relief component and protective cover (2),
Wherein:
The internal specific accommodating chamber of outer housing (1), and the one end open of accommodating chamber, to form port, the bottom of accommodating chamber is equipped with perforation
Ventilation mouth, waterproof ventilated membrane (3) are installed at ventilation mouth；
Explosion-proof relief component is located at accommodating chamber, explosion-proof relief component include substrate (4), bracket (5), guide post (6), spring (7) and
Baffle (8)；Substrate (4) is located at the port of outer housing (1) and is fixedly connected with outer housing (1), is equipped in the middle part of substrate (4) to appearance
Chamber inner recess is received to form groove, the bottom of groove is equipped with the bleeder port (a) being connected to accommodating chamber；Bracket (5) is located at groove
The side of close bleeder port (a) is simultaneously fixed with substrate (4)；Guide post (6) is located in groove, and one end of guide post (6) passes through bracket
(5) it protrudes into bleeder port (a), guide post (6) is equipped with limited block far from the one end of bracket (5)；Spring (7) is sleeved on guide post (6),
And the both ends of spring (7) respectively with bracket (5) and limited block against；Baffle (8) is located at side of the bleeder port (a) far from groove simultaneously
It reclines with the outer wall of substrate (4), and baffle (8) is connected through a screw thread part and is fixedly connected with guide post (6) to be formed to bleeder port (a)
Capping；
Protective cover (2) is located at side of the ventilation mouth far from accommodating chamber and is fixedly connected with outer housing (1) to be formed to ventilation mouth
Covering, and protective cover (2) is equipped with several through-holes.
2. battery system explosion-protection equipment according to claim 1, which is characterized in that the bottom of accommodating chamber and be located at ventilation mouth
Outside be equipped with the annular convex platform (11) coaxially arranged with ventilation mouth, waterproof ventilated membrane (3) is located at the inside of annular convex platform (11)
And it is posted and fixed with the bottom of accommodating chamber, and the thickness of waterproof ventilated membrane (3) is less than the height of annular convex platform (11).
3. battery system explosion-protection equipment according to claim 1, which is characterized in that waterproof ventilated membrane (3) passes through hot pressing
Mode and outer housing (1) are fixed.
4. battery system explosion-protection equipment according to claim 1, which is characterized in that outer housing (1) is formed by plastic production,
And outer housing (1) is embedded with metal insert inside forming process and its, substrate (4) is fixedly connected with metal insert.
5. battery system explosion-protection equipment according to claim 4, which is characterized in that substrate (4) be connected through a screw thread part with
Metal insert is fixedly connected.
6. battery system explosion-protection equipment according to claim 1, which is characterized in that substrate (4) and outer housing (1) joint
Equipped with sealing joint strip.
7. battery system explosion-protection equipment according to claim 1, which is characterized in that substrate (4) by metal material make and
At.
8. battery system explosion-protection equipment according to claim 1, which is characterized in that substrate (4) is made by stainless steel.
9. battery system explosion-protection equipment according to claim 1 to 9, which is characterized in that protective cover (2) passes through
The mode of clamping is fixedly connected with outer housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687153.6A CN109037546B (en) | 2018-06-28 | 2018-06-28 | Explosion-proof device of battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687153.6A CN109037546B (en) | 2018-06-28 | 2018-06-28 | Explosion-proof device of battery system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109037546A true CN109037546A (en) | 2018-12-18 |
| CN109037546B CN109037546B (en) | 2021-07-06 |
Family
ID=65520837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810687153.6A Active CN109037546B (en) | 2018-06-28 | 2018-06-28 | Explosion-proof device of battery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109037546B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158182A (en) * | 2021-11-15 | 2022-03-08 | 四川巴根科技有限公司 | A anticorrosion structure for circuit board |
| WO2023088107A1 (en) * | 2021-11-19 | 2023-05-25 | 宁德时代新能源科技股份有限公司 | Anti-explosion valve, battery, and electric device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4722303U (en) * | 1971-04-05 | 1972-11-13 | ||
| CN202992297U (en) * | 2013-01-05 | 2013-06-12 | 株洲南车时代电气股份有限公司 | Seal element pressure relief device |
| CN203036031U (en) * | 2013-01-05 | 2013-07-03 | 中海油田服务股份有限公司 | Safe pressure relief device for deep sea watertight drum |
| CN203131137U (en) * | 2012-12-10 | 2013-08-14 | 中国人民解放军63971部队 | Safe gas discharging valve |
| CN205609640U (en) * | 2016-05-04 | 2016-09-28 | 惠州市沃瑞科技有限公司 | Use explosion -proof pressure release balanced valve of pressure of compact battery package |
| CN107394086A (en) * | 2017-06-07 | 2017-11-24 | 惠州市沃瑞科技有限公司 | A kind of explosion-proof balanced valve applied on battery core module |
-
2018
- 2018-06-28 CN CN201810687153.6A patent/CN109037546B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4722303U (en) * | 1971-04-05 | 1972-11-13 | ||
| CN203131137U (en) * | 2012-12-10 | 2013-08-14 | 中国人民解放军63971部队 | Safe gas discharging valve |
| CN202992297U (en) * | 2013-01-05 | 2013-06-12 | 株洲南车时代电气股份有限公司 | Seal element pressure relief device |
| CN203036031U (en) * | 2013-01-05 | 2013-07-03 | 中海油田服务股份有限公司 | Safe pressure relief device for deep sea watertight drum |
| CN205609640U (en) * | 2016-05-04 | 2016-09-28 | 惠州市沃瑞科技有限公司 | Use explosion -proof pressure release balanced valve of pressure of compact battery package |
| CN107394086A (en) * | 2017-06-07 | 2017-11-24 | 惠州市沃瑞科技有限公司 | A kind of explosion-proof balanced valve applied on battery core module |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114158182A (en) * | 2021-11-15 | 2022-03-08 | 四川巴根科技有限公司 | A anticorrosion structure for circuit board |
| CN114158182B (en) * | 2021-11-15 | 2024-04-19 | 四川巴根科技有限公司 | A anticorrosion structure for circuit board |
| WO2023088107A1 (en) * | 2021-11-19 | 2023-05-25 | 宁德时代新能源科技股份有限公司 | Anti-explosion valve, battery, and electric device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109037546B (en) | 2021-07-06 |
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