CN206564275U - Power battery protection system - Google Patents
Power battery protection system Download PDFInfo
- Publication number
- CN206564275U CN206564275U CN201720246180.0U CN201720246180U CN206564275U CN 206564275 U CN206564275 U CN 206564275U CN 201720246180 U CN201720246180 U CN 201720246180U CN 206564275 U CN206564275 U CN 206564275U
- Authority
- CN
- China
- Prior art keywords
- explosion
- proof valve
- battery box
- box cover
- battery
- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims description 12
- 238000004080 punching Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- QSNQXZYQEIKDPU-UHFFFAOYSA-N [Li].[Fe] Chemical compound [Li].[Fe] QSNQXZYQEIKDPU-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920000260 silastic Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Classifications
-
- 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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a power battery protection system relates to power battery PACK technical field. The system comprises: comprises a battery box body and an explosion-proof valve; the anti-explosion valve is arranged on the outer surface of the battery box cover, is communicated with the interior of the battery box body through an opening in the battery box cover and is used for discharging part of gas in the battery box when the pressure value in the closed battery box is determined to exceed a preset value. The utility model discloses in being applied to power battery system with the explosion-proof valve, the explosion-proof pressure of explosion-proof valve can be selected according to the gaseous discharge amount in the battery box, has guaranteed that power battery system's security ensures personnel's safety on the car.
Description
Technical field
The utility model belongs to electrokinetic cell PACK technical fields, more particularly to a kind of electrokinetic cell protection system.
Background technology
With the popularization and popularization of power vehicle, security is increasingly becoming the emphasis of consumer's concern, is also test power
One of difficulty of battery PACK enterprises internal strength.In particular with the appearance of new subsidy policy in 2017, to electrokinetic cell system
Energy density proposes more requirements.
In this context, electrokinetic cell particularly passenger car electrokinetic cell field, the ternary battery of high-energy-density turns into
Substitute the only selection of lithium iron battery.However, ternary battery safety is not as good as lithium iron battery, particularly in high temperature environments,
The bath composition activity of ternary battery is greatly enhanced, and can be produced gas along with temperature rise, be caused air pressure liter in battery case
Height, even results in blast when serious.
Therefore how preferably to ensure the security of ternary electrokinetic cell system turns into problem urgently to be resolved hurrily, how in electricity
The measure of increase pressure venting maintains system internal and external pressure balance in cell system, to avoid internal pressure value is too high from causing bigger consequence
It is one significantly to study.
Utility model content
(1) technical problem solved
In view of the shortcomings of the prior art, the utility model provides a kind of electrokinetic cell and protects system, is moved to improve ternary
Power battery system security, maintains electrokinetic cell system internal and external pressure balance, prevents internal pressure value is excessive from causing bigger consequence.
(2) technical scheme
To realize object above, the utility model is achieved by the following technical programs：
The utility model provides a kind of electrokinetic cell and protects system, including Battery case 1 and explosion-proof valve 3；
Wherein, explosion-proof valve 3 is arranged on the outer surface of battery box cover 2, passes through the opening and Battery case on battery box cover 2
1 inside connection, for it is determined that closure after battery case in pressure value exceed preset value when, by the part gas in battery case
Body is discharged.
Alternatively, the explosion-proof valve 3 is additionally provided with sealing ring, for being arranged on the outer of battery box cover 2 in the explosion-proof valve 3
It is close to the outer surface when on surface.
Alternatively, explosion-proof valve 3 is by being arranged on the explosion-proof valve installing plate 4 of the inner surface corresponding position of battery box cover 2 and electricity
Pond case lid 2 is fixed.
Alternatively, several screwed holes, the correspondence of the battery box cover 2 and explosion-proof valve installing plate 4 are provided with explosion-proof valve 3
Explosion-proof valve mounting hole is provided with position, explosion-proof valve 3 is by screwing in each screwed hole and corresponding explosion-proof valve mounting hole
Several assembling bolts fixed with battery box cover 2.
Alternatively, the mounting hole of battery box cover 2 and the explosion-proof valve on explosion-proof valve installing plate 4 is struck out by punching die
Type.
(3) beneficial effect
The utility model embodiment provides a kind of electrokinetic cell and protects system, and the system includes Battery case and explosion-proof
Valve.Wherein, explosion-proof valve can discharge internal excessive gas when the internal pressure value of Battery case exceedes certain threshold value, so that
Can effectively ensure that pressure in battery case is in the range of pressure values of safety, it is to avoid in the case of a high temperature in battery case due to
Aerogenesis cause pressure rise cause battery system external and internal pressure it is unbalance the occurrence of, while the utility model provide system
In explosion-proof valve can be prevented effectively from outside vapor etc. again and enter internal system, so as to meet battery case water resistance
It is required that.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of electrokinetic cell guard system example structure schematic diagram that the utility model is provided；
Fig. 2 is a kind of electrokinetic cell guard system embodiment decomposing schematic representation that the utility model is provided；
Fig. 3 is a kind of electrokinetic cell guard system example structure schematic diagram that the utility model is provided；
Fig. 4 is a kind of explosion-proof valve example structure schematic diagram that the utility model is provided；
Fig. 5 is a kind of explosion-proof valve mounting plates structure schematic diagram that the utility model is provided.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
One embodiment of the present utility model provides a kind of electrokinetic cell and protects system, as shown in figure 1, including battery case
Body 1 and explosion-proof valve 3；
Wherein, explosion-proof valve 3 is arranged on the outer surface of battery box cover 2, passes through the opening and Battery case on battery box cover 2
1 inside connection, for it is determined that closure after battery case in pressure value exceed preset value when, by the part gas in battery case
Body is discharged.
In the electrokinetic cell protection system that the utility model is provided, including Battery case and explosion-proof valve.Wherein, explosion-proof valve
Internal excessive gas can be discharged when the internal pressure value of Battery case exceedes certain threshold value, so as to which electricity is effectively ensured
Pressure in the case of pond is in the range of pressure values of safety, it is to avoid in the case of a high temperature because aerogenesis causes pressure liter in battery case
Height cause battery system external and internal pressure it is unbalance the occurrence of, while the utility model provide system in explosion-proof valve again energy
Enough it is prevented effectively from outside vapor etc. and enters internal system, so as to meets the requirement of battery case water resistance.
In the specific implementation, sealing ring is additionally provided with explosion-proof valve 3 here, for being arranged on battery case in explosion-proof valve 3
The outer surface can be close to when on the outer surface of lid 2, so as to strengthen the airtight performance of battery case, it is ensured that electrokinetic cell system is full
Sufficient IP67 and GB/T31467.3 water resistancees test request.
In addition, a kind of optional embodiment of explosion-proof valve 3 can include：Explosion-proof cap, explosion-proof main body, protective cover, screen pack,
Other parts such as sealing ring, mounting hole.Wherein the explosion-proof pressure of explosion-proof valve 3 can be chosen according to battery system actual conditions here.
In the specific implementation, in order to further strengthen sealing function, as shown in figure 1, explosion-proof valve 3 can also be by being arranged on
The explosion-proof valve installing plate 4 of the inner surface corresponding position of battery box cover 2 is fixed with battery box cover 2.It is understood that when fixing
By setting explosion-proof valve installing plate 4 to be greatly enhanced installation surface intensity, it is ensured that the sealing reliability of mounting surface.
Understandable to be, explosion-proof valve 3 can be in several ways by explosion-proof valve installing plate 4 and the fixation of battery box cover 2
To implement, the optional embodiment of one of which is：Several screwed holes, battery box cover 2 and explosion-proof valve are provided with explosion-proof valve 3
The corresponding position of installing plate 4 is provided with explosion-proof valve mounting hole, and explosion-proof valve 3 is by screwing in each screwed hole and corresponding anti-
Several assembling bolts in quick-fried valve mounting hole are fixed with battery box cover 2.
Wherein, explosion-proof valve installing plate 4 here can be formed by 1mm metal plate punchings, according to explosion-proof valve size on mounting surface
Mounting hole is opened, four side flange 3mm ensure installing plate intensity.
Further, explosion-proof valve 3, explosion-proof valve installing plate 4 and battery box cover 2 can pass through 4 M5 outer-hexagonal assembling bolts
Fixed, bolt is screwed in from explosion-proof valve installing plate side, middle to enter back into 4 installation spiral shells on explosion-proof valve through battery box cover mounting hole
Pit, can effectively be fixed, it is ensured that explosion-proof valve seals are brought into close contact guarantee sealing with battery box cover.
In addition, in the specific implementation, the mounting hole of battery box cover 2 and the explosion-proof valve on explosion-proof valve installing plate 4 can be with
By opening perforating die punch forming, so as to ensure the flatness of processing efficiency and mounting surface.
It is understood that according to foregoing description, the system that the utility model embodiment is provided can be in several ways
To implement, the optional embodiment of one of which is described in detail 1-5 below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of application structure of the explosion-proof valve of the present embodiment in battery system, including Battery case 1, electricity
Pond case lid 2, explosion-proof valve 3 and explosion-proof valve installing plate 4, explosion-proof valve 3 are arranged on the outside of battery box cover 2, and the inner side of battery box cover 2 is lined with anti-
Quick-fried valve installing plate 4.
As shown in Fig. 2 explosion-proof valve 3 passes through 4 M5 outer-hexagonals assembling bolts 5 and battery box cover 2 and its explosion-proof valve of inner side
Installing plate 4 fixes integral, and whole installation process is before battery box cover is arranged on casing, and installation bolt 5 successively passes through anti-
Quick-fried valve installing plate 4 and battery box cover 2, are screwed in the installation screwed hole on explosion-proof valve 3, install the urgent head of installation bolt 5 later
Explosion-proof valve installing plate is firmly withstood, so as to ensure that the sealing ring 3-1 on explosion-proof valve 3 is fitted tightly on Battery case 2, reaching can
By sealed effect.
As shown in figure 3, being installed on battery box cover 2 needs out explosion-proof valve mounting hole on the position of explosion-proof valve 3, explosion-proof valve is installed
The through hole 2-1 of φ 6 of bolt are worn by 4 for hole and the big rectangular opening 2-2 of four rounding of angle of middle part is constituted, rectangular opening 2-2 chi
The very little screen pack 3-3 protruded above according to explosion-proof valve 3 extension size is determined.
As shown in figure 4, the mounting surface one side periphery of typical explosion-proof valve 3 has the high 2mm of circle sealing ring 3-1, sealing ring 3-1
Made by the moderate silastic material of good endurance, elasticity, it is ensured that the solid and reliable sealing of mounting surface.The mounting surface side of explosion-proof valve 3
Respectively there is an embedded M5 screwed holes 3-2 corner as fixed carrier is installed, and screen pack 3-3 effect is to prevent external water from steaming
The gases such as gas and moisture are entered inside battery system, while inside can be made many when internally pressure value exceeds explosion-proof valve limit value
Remaining pressed gas is quickly discharged.
As shown in figure 5, explosion-proof valve installing plate 4 is formed by 1mm cold-rolling steel-plate punch, 4 φ are also opened accordingly on installing plate 4
The rectangular opening 4-2 of 6 through hole 4-1 and four rounding of angle broad in the middle as explosion-proof valve 3 mounting hole, while explosion-proof valve installing plate 4
The periphery inside side flanging 3mm in four sides, to ensure the intensity of mating surface.
Application structure on battery box cover by opening explosion-proof valve mounting hole in battery system for the explosion-proof valve of the present embodiment, together
When on the inside of battery box cover increase explosion-proof valve installing plate, so as to greatly improve installation surface intensity, it is ensured that the sealing of mounting surface
Reliability, selected explosion-proof valve explosion-proof pressure can be selected according to battery system actual conditions, so as to ensure that in battery system
Unnecessary gas discharge can be maintained the balance of air pressure to ensure that battery system is safe and reliable by temperature, pressure rise in time.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property is included, so that process, method, article or equipment including a series of key elements not only include those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including institute
Also there is other identical element in process, method, article or the equipment of stating key element.
Above example is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing reality
Example is applied the utility model is described in detail, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent substitution is carried out to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and model of each embodiment technical scheme of the utility model
Enclose.
Claims (5)
1. a kind of electrokinetic cell protects system, it is characterised in that including Battery case (1) and explosion-proof valve (3)；
Wherein, the explosion-proof valve (3) is arranged on the outer surface of battery box cover (2), passes through the opening on the battery box cover (2)
Connected with the inside of the Battery case (1), for it is determined that closure after battery case in pressure value exceed preset value when, will
Portion gas discharge in battery case.
2. system according to claim 1, it is characterised in that the explosion-proof valve (3) is additionally provided with sealing ring, in institute
It is close to the outer surface when stating explosion-proof valve (3) on the outer surface of the battery box cover (2).
3. system according to claim 1, it is characterised in that the explosion-proof valve (3) is by being arranged on the battery box cover
(2) the explosion-proof valve installing plate (4) of inner surface corresponding position and the battery box cover (2) are fixed.
4. system according to claim 3, it is characterised in that be provided with several screwed holes, institute on the explosion-proof valve (3)
The corresponding position for stating battery box cover (2) and the explosion-proof valve installing plate (4) is provided with explosion-proof valve mounting hole, the explosion-proof valve
(3) by screwing in several assembling bolts in each screwed hole and corresponding explosion-proof valve mounting hole and battery box cover (2)
It is fixed.
5. system according to claim 4, it is characterised in that：The battery box cover (2) and the explosion-proof valve installing plate
(4) mounting hole of the explosion-proof valve on passes through punching die punch forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246180.0U CN206564275U (en) | 2017-03-14 | 2017-03-14 | Power battery protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720246180.0U CN206564275U (en) | 2017-03-14 | 2017-03-14 | Power battery protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206564275U true CN206564275U (en) | 2017-10-17 |
Family
ID=60030752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720246180.0U Active CN206564275U (en) | 2017-03-14 | 2017-03-14 | Power battery protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206564275U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560218A (en) * | 2017-10-19 | 2019-04-02 | 蜂巢能源科技有限公司 | Lower case and battery pack for battery pack |
| CN112701393A (en) * | 2020-12-29 | 2021-04-23 | 长城汽车股份有限公司 | Battery module and have its vehicle |
| CN113588254A (en) * | 2021-07-29 | 2021-11-02 | 东软睿驰汽车技术（沈阳）有限公司 | Explosion-proof valve model selection calibration method, device, equipment and medium |
-
2017
- 2017-03-14 CN CN201720246180.0U patent/CN206564275U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560218A (en) * | 2017-10-19 | 2019-04-02 | 蜂巢能源科技有限公司 | Lower case and battery pack for battery pack |
| CN109560218B (en) * | 2017-10-19 | 2022-09-20 | 蜂巢能源科技有限公司 | Lower shell for battery pack and battery pack |
| CN112701393A (en) * | 2020-12-29 | 2021-04-23 | 长城汽车股份有限公司 | Battery module and have its vehicle |
| CN112701393B (en) * | 2020-12-29 | 2023-06-09 | 长城汽车股份有限公司 | Battery module and vehicle with same |
| CN113588254A (en) * | 2021-07-29 | 2021-11-02 | 东软睿驰汽车技术（沈阳）有限公司 | Explosion-proof valve model selection calibration method, device, equipment and medium |
| CN113588254B (en) * | 2021-07-29 | 2024-05-28 | 东软睿驰汽车技术（沈阳）有限公司 | Explosion-proof valve selection checking method, device, equipment and medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |