CN207409553U - Babinet - Google Patents

Babinet Download PDF

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Publication number
CN207409553U
CN207409553U CN201721428833.3U CN201721428833U CN207409553U CN 207409553 U CN207409553 U CN 207409553U CN 201721428833 U CN201721428833 U CN 201721428833U CN 207409553 U CN207409553 U CN 207409553U
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CN
China
Prior art keywords
air suction
suction structure
babinet
lower box
upper cover
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
Application number
CN201721428833.3U
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Chinese (zh)
Inventor
杜杰
马林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to CN201721428833.3U priority Critical patent/CN207409553U/en
Application granted granted Critical
Publication of CN207409553U publication Critical patent/CN207409553U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Gas Exhaust Devices For Batteries (AREA)

Abstract

The utility model provides a kind of babinet, including:Lower box;Upper cover is covered on lower box;Wherein, it is at least one interior equipped with air suction structure in upper cover and lower box, at least a portion gas generated in respiratory box body.In babinet according to the present utility model, portion gas that air suction structure can be generated quickly in respiratory box body rapidly reduces the air pressure of box house, the upper cover for effectively preventing babinet is started due to air pressure inside is excessive or burnt by thermal current.

Description

Babinet
Technical field
The utility model is related to field of batteries more particularly to a kind of babinets.
Background technology
Chinese fossil energy (oil, natural gas, coal etc.) shortage is compeled in as pressing as a fire singeing one's eyebrows, heavy dependence import.Moreover, state Family very focuses on environmental protection.Lithium battery has come into all trades and professions as cleaning, efficient, non-polluting energy sources, and current lithium battery industry is It is not limited solely to general consumer electronics product (such as mobile phone, laptop and other digital consumer electronics productions Product), but progressively expanded to emerging fields such as electric bicycle, hybrid vehicle, medical treatment and aerospaces.
With high power capacity, the use of big battery core, the security of lithium battery becomes the topic that people increasingly pay attention to.For The factors such as over-charging of battery, collision cause the explosion of battery, also occur many cases on the market recent years.
Wherein, there are mainly three types of forms for the battery failure out of control for causing entire battery pack:Explosion-proof valve does not play timely exhaust Effect, battery pack (pack) upper cover burnt, battery pack (pack) upper cover started come.Its basic reason to fail is battery Atmospheric carbon dioxide (the CO of generation after out of control2) and carbon monoxide (CO) rate it is fast, and gas production is very big, causes in Battery case Air pressure increase rapidly.The mode that current battery manufacturer solves this failure is the heat shock resistance by increasing large area in upper cover Layer come protect upper cover is not burnt (the reason for burn-through be box house velocity heated gas impact, so as to burn upper cover), but not from Solve the problems, such as that battery producing gas rate causes air pressure in babinet excessive in root.And these project plan comparisons are passive, are unfavorable for environmental protection.
Utility model content
In view of problem present in background technology, the purpose of this utility model is to provide a kind of babinets, can absorb At least a portion gas that box house generates, the quick air pressure for reducing box house reduce the probability that babinet fails.
To achieve these goals, the utility model provides babinet, including:Lower box;Upper cover is covered on lower box On;Wherein, it is at least one interior equipped with air suction structure in upper cover and lower box, for at least a portion generated in respiratory box body Gas.
The beneficial effects of the utility model are as follows:
In babinet according to the present utility model, at least a portion gas that air suction structure can be generated quickly in respiratory box body Body rapidly reduces the air pressure of box house, effectively prevent babinet upper cover started due to air pressure inside is excessive or It is burnt by thermal current, thereby reduces the probability of babinet failure.
Description of the drawings
Fig. 1 is the sectional view of babinet according to the present utility model, and plurality of battery modules are fixed in babinet.
Wherein, the reference numerals are as follows:
1 lower box, 3 air suction structure
11 lower peripheral wall, 31 side
12 bottom wall, 32 top
2 upper cover, 4 explosion-proof valve
21 upper perimeter wall B bolts
22 roof M battery modules
S receiving spaces
Specific embodiment
It is described in detail babinet according to the present utility model with reference to the accompanying drawings.
As shown in Figure 1, babinet according to the present utility model includes:Lower box 1;Upper cover 2 is covered on lower box 1;Its In, it is at least one interior equipped with air suction structure 3 in upper cover 2 and lower box 1, at least a portion gas generated in respiratory box body Body.
In babinet according to the present utility model, air suction structure 3 is equipped at least one in upper cover 2 and lower box 1, from And when being provided with battery modules M described below in babinet, air suction structure 3 accordingly can be quickly absorbed due to battery modules At least a portion gas (carbon dioxide) that battery in M is out of control and generates, greatly reduces the air pressure of box house, The upper cover 2 of babinet is thereby reduced by the risk that thermal current punches through or starts, so as to reduce the probability of babinet failure.
Upper cover 2 has upper perimeter wall 21 and roof 22;Lower box 1 has lower peripheral wall 11 and bottom wall 12;Upper cover 2 is covered on nowel Body 1 simultaneously forms receiving space S together.
Air suction structure 3 can be there are many form of setting, i.e. air suction structure 3 can be arranged in upper cover 2;It can be arranged on down On babinet 1;Certain upper cover 2 and lower box 1 can also be equipped with air suction structure 3, so as to absorb more gases.It is real one It applies in example, the roof 22 of upper cover 2 and/or the inner surface of upper perimeter wall 21 are combined with air suction structure 3.Preferably, the roof 22 of upper cover 2 Air suction structure 3 is combined with upper perimeter wall 21.
In babinet according to the present utility model, there are many generation types, in one embodiment, air-breathing knot for air suction structure 3 Structure 3 is formed by coating gettering material coating in roof 22 and/or the inner surface of upper perimeter wall 21.
In another embodiment, air suction structure 3 is by being integrally formed the interior table for forming and passing through bonded adhesives and be fixed on upper cover 2 Face.At this point, air suction structure 3 has side 31 and top 32, side 31 is bonded with the inner surface of the upper perimeter wall 21 of upper cover 2, top 32 are bonded with the inner surface of the roof 22 of upper cover 2.
In the above two embodiments, the thickness of air suction structure 3 is 1mm-3mm.Preferably, the thickness of air suction structure 3 is 2mm。
In babinet according to the present utility model, as shown in Figure 1, being equipped with air suction structure 3 in lower box 1, air suction structure 3 is in Block and the bottom wall 12 for being fixed on lower box 1.
With reference to Fig. 1, babinet further includes:Explosion-proof valve 4 is arranged in the lower peripheral wall 11 of lower box 1;Air suction structure 3 is close to anti- Quick-fried valve 4 is arranged, and the height of air suction structure 3 is not less than the height of explosion-proof valve 4.Explosion-proof valve 4 is used for the in vivo air pressure of tandem-driving bogie, and The height of air suction structure 3 is not less than the height of explosion-proof valve 4, and the in vivo portion gas of case (such as carbon dioxide) is enabled to the greatest extent may be used Energy ground is absorbed by air suction structure 3, externally discharged from explosion-proof valve 4 so as to reduce portion gas (such as carbon dioxide).
Babinet is arranged at least one battery modules M being fixed on lower box 1 and is contained in lower box 1 and upper cover 2 is formed Receiving space S;Air suction structure 3 also proximates each battery modules M arrangements.When box house due to the colliding of battery modules M, squeeze After pressing, overcharge or occur the factors such as condensed water and causing battery short circuit out of control, substantial amounts of carbon monoxide and carbon dioxide can be generated Gas, the absorbent (calcium hydroxide) in air suction structure 3 described below can absorb rapidly the carbon dioxide inside Battery case, Thus largely reduce air pressure inside, reduce box cover 2 by two kinds of failure probabilities that thermal current punches through or starts, In addition reduce CO2 emission to air, pollute environment.
Air suction structure 3 contains absorbent and drier.On the one hand since absorbent (calcium hydroxide) is in absorbing carbon dioxide In the process there may be water (i.e. with carbon dioxide chemical reaction generation water occurs for calcium hydroxide), the setting of drier can absorb The water of generation;Another aspect drier can also absorb the vapor or condensed water of box house, reduce battery modules M short circuits Risk.
The one kind of absorbent in calcium hydroxide and Polyethylenimine.Can certainly be calcium hydroxide and Polyethylenimine Mixture.Preferably, absorbent is selected from calcium hydroxide.
The one kind of drier in silica gel, calcium sulfate and calcium chloride.Can certainly be silica gel, calcium sulfate and calcium chloride Mixture.Preferably, drier is selected from calcium chloride.
As shown in Figure 1, upper cover 2 is fixedly connected with lower box 1 by bolt B or fluid sealant.
The material of upper cover 2 is cast aluminium, metal plate, galss fiber reinforced resin or carbon fiber-reinforced resin.Preferably, upper cover 2 Material be galss fiber reinforced resin.
The material of lower box 1 is metal plate or aluminium alloy.Preferably, the material of lower box 1 is aluminium alloy.

Claims (10)

1. a kind of babinet, including:
Lower box (1);
Upper cover (2) is covered on lower box (1);
It is characterized in that, it is at least one interior equipped with air suction structure (3) in upper cover (2) and lower box (1), in respiratory box body At least a portion gas of generation.
2. babinet according to claim 1, which is characterized in that
Upper cover (2) has upper perimeter wall (21) and roof (22);
Lower box (1) has lower peripheral wall (11) and bottom wall (12);
Upper cover (2) is covered on lower box (1) and forms receiving space (S) together.
3. babinet according to claim 2, which is characterized in that the roof (22) of upper cover (2) and/or upper perimeter wall (21) it is interior Surface is combined with air suction structure (3).
4. babinet according to claim 3, which is characterized in that
Air suction structure (3) is formed by coating gettering material coating in roof (22) and/or the inner surface of upper perimeter wall (21);Or
Air suction structure (3) is by being integrally formed the inner surface for forming and passing through bonded adhesives and be fixed on upper cover (2).
5. babinet according to claim 2, which is characterized in that air suction structure (3), air suction structure are equipped in lower box (1) (3) in block and it is fixed on the bottom wall (12) of lower box (1).
6. babinet according to claim 5, which is characterized in that
Babinet further includes:Explosion-proof valve (4) is arranged in the lower peripheral wall (11) of lower box (1);
Air suction structure (3) is arranged close to explosion-proof valve (4), and the height of air suction structure (3) is not less than the height of explosion-proof valve (4).
7. babinet according to claim 5, which is characterized in that
Babinet is arranged at least one battery modules (M) being fixed on lower box (1) and is contained in lower box (1) and upper cover (2) The receiving space (S) of formation;
Air suction structure (3) also proximates each battery modules (M) arrangement.
8. babinet according to claim 1, which is characterized in that
Air suction structure (3) contains absorbent and drier.
9. babinet according to claim 8, which is characterized in that
The one kind of absorbent in calcium hydroxide and Polyethylenimine.
10. babinet according to claim 8, which is characterized in that
The one kind of drier in silica gel, calcium sulfate and calcium chloride.
CN201721428833.3U 2017-10-31 2017-10-31 Babinet Active CN207409553U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721428833.3U CN207409553U (en) 2017-10-31 2017-10-31 Babinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721428833.3U CN207409553U (en) 2017-10-31 2017-10-31 Babinet

Publications (1)

Publication Number Publication Date
CN207409553U true CN207409553U (en) 2018-05-25

Family

ID=62409400

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721428833.3U Active CN207409553U (en) 2017-10-31 2017-10-31 Babinet

Country Status (1)

Country Link
CN (1) CN207409553U (en)

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