CN110534668A - Battery case, Battery case encapsulating method and battery system - Google Patents
Battery case, Battery case encapsulating method and battery system Download PDFInfo
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- CN110534668A CN110534668A CN201910882158.9A CN201910882158A CN110534668A CN 110534668 A CN110534668 A CN 110534668A CN 201910882158 A CN201910882158 A CN 201910882158A CN 110534668 A CN110534668 A CN 110534668A
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- bottom plate
- surrounding edge
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- edge
- frame
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 238000003466 welding Methods 0.000 claims description 25
- 239000011241 protective layer Substances 0.000 claims description 12
- 239000003755 preservative agent Substances 0.000 claims description 9
- 230000002335 preservative effect Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 12
- 230000006641 stabilisation Effects 0.000 abstract description 6
- 238000011105 stabilization Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 16
- 239000000565 sealant Substances 0.000 description 12
- 238000009434 installation Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001962 electrophoresis Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
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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
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/183—Sealing members
-
- 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
Abstract
The invention discloses a kind of Battery case, Battery case encapsulating method and battery systems, and first seal is arranged between the edge of bottom plate and the side of surrounding edge, so that closely connecting between bottom plate and surrounding edge, reduce the gap between bottom plate and surrounding edge；Meanwhile this programme is between the end of surrounding edge and the side of the bottom plate, and covers the gap between the end of surrounding edge and the side of bottom plate；And/or between the end of bottom plate and the side of surrounding edge, and the gap between the end of bottom plate and the side of surrounding edge is covered, so that the end of bottom plate is coated on surrounding edge by second seal；Or, so that the end of surrounding edge is coated on bottom plate by second seal, so, so that forming double-layer sealing structure or three-layer sealed structure between bottom plate and surrounding edge, greatly improve the sealing effect between bottom plate and surrounding edge, so that the sealing performance of battery system entirety effectively improves, be conducive to battery system stabilization, safe operation.
Description
Technical field
The present invention relates to technical field of new energy, more particularly to a kind of Battery case, Battery case encapsulating method
And battery system.
Background technique
Increasingly mature with new energy technology, new-energy automobile also progresses into the public visual field.It is as with battery
The automobile in power source, the stability of battery system, safety directly affect the service performance of vehicle.Currently, battery system is integrally prevented
Water-stop now has become industry competition key safety index, and national standard and terrestrial reference are made that battery system overall sealing performance
Specific regulation.
In general, battery system includes battery modules, lid and body structure.Battery modules are fitted into body structure, and are led to
Cross body structure installation on the car body.However, traditional body structure can not reach effective sealing effect in the production process
Fruit causes external water to easily infiltrate into body structure, meets water short circuit so as to cause battery modules, and then cause fire or explosion
Accident.
Summary of the invention
Based on this, it is necessary to provide a kind of Battery case, Battery case encapsulating method and battery system, improve battery system
Whole sealing performance, so that battery system is stable, safe operation.
Its technical solution is as follows:
A kind of Battery case, comprising: the inner sidewall of frame, the frame is equipped with surrounding edge, and the surrounding edge is along the side
The circumferential setting of frame；Bottom plate, the edge of the bottom plate are connected on the side of the surrounding edge, and the bottom plate is enclosed with the frame
At the accommodating chamber for installing battery modules；Edge and the institute of the bottom plate is arranged in first seal, the first seal
It states between the side of surrounding edge, and the first seal is arranged along the circumferential direction of the frame；And second seal, described second
Sealing element is arranged between the end of the surrounding edge and the side of the bottom plate, and cover the surrounding edge end and the bottom plate
Side between gap；And/or the second seal be arranged in the bottom plate end and the surrounding edge side it
Between, and cover the gap between the end of the bottom plate and the side of the surrounding edge；The second seal is along the frame
Circumferential setting.
The edge of bottom plate is connected on the side of surrounding edge by above-mentioned Battery case, so that bottom plate and frame surround receiving
Chamber, so as to battery modules loading, so that battery modules obtain stablizing installation.Due between the edge of bottom plate and the side of surrounding edge
First seal is set, so that closely connecting between bottom plate and surrounding edge, reduces the gap between bottom plate and surrounding edge；Meanwhile we
Case covers the gap between the end of surrounding edge and the side of bottom plate between the end of surrounding edge and the side of bottom plate；And/or
Between the end of bottom plate and the side of surrounding edge, and the gap between the end of bottom plate and the side of surrounding edge is covered, so that bottom plate
End be coated on surrounding edge by second seal；Alternatively, the end of surrounding edge is made to be coated on bottom plate by second seal
On, in this way, to form double-layer sealing structure or three-layer sealed structure between bottom plate and surrounding edge, greatly improve bottom plate and surrounding edge
Between sealing effect so that the sealing performance of battery system entirety effectively improves, be conducive to battery system it is stable,
Safe operation.
The principle of the present invention, effect are further illustrated below with reference to above scheme:
The edge of the bottom plate is connected to one side of the surrounding edge towards the accommodating chamber in one of the embodiments,
On, the surrounding edge is arranged on the one side of the bottom plate in the second seal, and the second seal with it is described
The side of bottom plate connects.
The edge of the bottom plate is connected on the side of the surrounding edge by spot welding in one of the embodiments,.
In one of the embodiments, the welding position of the spot welding be it is multiple, multiple welding positions along the frame week
It is arranged to interval, and the spacing between the two neighboring welding position is 40mm~50mm.
In one of the embodiments, the first seal with a thickness of 0.1mm~1mm；The first seal
Width is 10mm~20mm.
In one of the embodiments, the second seal with a thickness of 1mm~5mm；The width of the second seal
Degree is 15mm~25mm.
Battery case further includes protective layer in one of the embodiments, and the protective layer is covered on the bottom plate backwards
On the one side of the accommodating chamber with the surrounding edge on the one side of the accommodating chamber.
The bottom plate is described backwards with the surrounding edge on the one side of the accommodating chamber in one of the embodiments,
Erosion resistant coating is equipped on the one side of accommodating chamber.
Battery case further includes more than two support components in one of the embodiments, more than two support groups
Part interval is connected on the inner sidewall of the frame, for installing battery modules between the two neighboring support component.
The support component includes module support beam and is arranged in the module support beam in one of the embodiments,
Load bearing beam, the both ends of the load bearing beam connect with the inner sidewall of the frame respectively, and the module support beam is for installing institute
State battery modules.
A kind of battery system, including lid, battery modules and above-described Battery case, the battery modules are packed into institute
It states in accommodating chamber, the lid is arranged on the frame.
The edge of bottom plate is connected on the side of surrounding edge by above-mentioned battery system, the Battery case more than, so that
Bottom plate and frame surround accommodating chamber, so as to battery modules loading, so that battery modules obtain stablizing installation.Due on the side of bottom plate
First seal is set between edge and the side of surrounding edge so that closely connected between bottom plate and surrounding edge, reduce bottom plate and surrounding edge it
Between gap；Meanwhile this programme is between the end of surrounding edge and the side of the bottom plate, and covers end and the bottom plate of surrounding edge
Gap between side；And/or between the end of bottom plate and the side of surrounding edge, and cover the end of bottom plate and the side of surrounding edge
Gap between face, so that the end of bottom plate is coated on surrounding edge by second seal；Alternatively, passing through the end of surrounding edge
Second seal is coated on bottom plate, in this way, to form double-layer sealing structure or three-layer sealed knot between bottom plate and surrounding edge
Structure greatly improves the sealing effect between bottom plate and surrounding edge, so that the sealing performance of battery system entirety is effectively mentioned
Height is conducive to battery system stabilization, safe operation.
A kind of Battery case encapsulating method includes the following steps: that is arranged between the edge of bottom plate and the side of surrounding edge
One sealing element, wherein the first seal is arranged along the circumferential direction of frame；It is arranged after the first seal, it will be described
The edge of bottom plate and the side of the surrounding edge are welded；After welding, set on the one side of the bottom plate in the surrounding edge
Second seal is set, and the second seal is extended on the bottom plate from the surrounding edge；And/or it is carried on the back in the bottom plate
Second seal is set on the one side of the surrounding edge, and the second seal is extended into the surrounding edge from the bottom plate
On；Wherein, the second seal is arranged along the circumferential direction of the frame.
Above-mentioned Battery case encapsulating method is arranged first seal between the edge of bottom plate and the side of surrounding edge, makes
It obtains and is closely connected between bottom plate and surrounding edge, reduce the gap between bottom plate and surrounding edge；Meanwhile this programme in surrounding edge backwards to bottom plate
Second seal is set on one side, and second seal is extended on the bottom plate from the surrounding edge；And/or in bottom plate
Second seal is set on the one side of surrounding edge, and second seal is extended on surrounding edge from bottom plate, so that bottom plate
End is coated on surrounding edge by second seal；Alternatively, the end of surrounding edge is coated on bottom plate by second seal,
In this way, to form double-layer sealing structure or three-layer sealed structure between bottom plate and surrounding edge, greatly improve bottom plate and surrounding edge it
Between sealing effect be conducive to that battery system is stable, peace so that the sealing performance of battery system entirety effectively improves
Row for the national games.
After the second seal is along circumferential the step of being arranged of the frame in one of the embodiments, also
It include: that preservative treatment is carried out to the bottom plate and the surrounding edge；After preservative treatment, to the bottom plate backwards to the one side of accommodating chamber
One side with the surrounding edge backwards to the accommodating chamber is sprayed, and protective layer is formed.
Detailed description of the invention
Fig. 1 is one visual angle figure of Battery case structure described in one embodiment of the invention；
Fig. 2 is Battery case in Fig. 1 along the cross-sectional view in the direction A-A；
Fig. 3 is structure enlargement diagram at Fig. 2 centre circle B；
Fig. 4 is another visual angle figure of Battery case structure described in one embodiment of the invention；
Fig. 5 is Battery case structural blast schematic diagram described in one embodiment of the invention；
Fig. 6 is Battery case encapsulating method flow chart one described in one embodiment of the invention；
Fig. 7 is Battery case encapsulating method flowchart 2 described in one embodiment of the invention.
Description of symbols:
100, Battery case, 110, frame, 111, surrounding edge, 112, chassis hangers, 113, collision prevention girders hangers, 114, high-voltage connecting
Plug-in unit mounting hole, 120, bottom plate, 130, first seal, 140, second seal, 150, accommodating chamber, 160, support component,
161, load bearing beam, 162, module support beam, 170, mounting structure, 180, protective layer, 190, welding position.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below in conjunction with attached drawing and specific embodiment party
Formula, the present invention is further described in detail.It should be understood that the specific embodiments described herein are only to solve
The present invention is released, and the scope of protection of the present invention is not limited.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
Heretofore described " first ", " second " do not represent specific quantity and sequence, are only used for the differentiation of title.
In one embodiment, Fig. 1, Fig. 2 and Fig. 3, a kind of Battery case 100, comprising: frame 110, bottom plate are please referred to
120, first seal 130 and second seal 140.The inner sidewall of frame 110 is equipped with surrounding edge 111.Surrounding edge 111 is along frame
110 circumferential setting.The edge of bottom plate 120 is connected on the side of surrounding edge 111, and bottom plate 120 is surrounded with frame 110 for pacifying
The accommodating chamber 150 of packed battery mould group.First seal 130 is arranged between the edge of bottom plate 120 and the side of surrounding edge 111, and
First seal 130 is arranged along the circumferential direction of frame 110.End and the bottom plate 120 of surrounding edge 111 is arranged in second seal 140
Side between, and cover the gap between the end of surrounding edge 111 and the side of bottom plate 120；And/or second seal 140 is set
It sets between the end of bottom plate 120 and the side of surrounding edge 111, and covers between the end of bottom plate 120 and the side of surrounding edge 111
Gap.Second seal 140 is arranged along the circumferential direction of frame 110.
Above-mentioned Battery case 100, the edge of bottom plate 120 is connected on the side of surrounding edge 111 so that bottom plate 120 with
Frame 110 surrounds accommodating chamber 150, so as to battery modules loading, so that battery modules obtain stablizing installation.Due in bottom plate 120
Edge and surrounding edge 111 side between first seal 130 is set so that closely connected between bottom plate 120 and surrounding edge 111,
Reduce the gap between bottom plate 120 and surrounding edge 111；Meanwhile the present embodiment surrounding edge 111 end and bottom plate 120 side it
Between, and cover the gap between the end of surrounding edge 111 and the side of bottom plate 120；And/or end and surrounding edge in bottom plate 120
Between 111 side, and the gap between the end of bottom plate 120 and the side of surrounding edge 111 is covered, so that the end of bottom plate 120
It is coated on surrounding edge 111 by second seal 140；Alternatively, coating the end of surrounding edge 111 by second seal 140
On bottom plate 120, in this way, to form double-layer sealing structure or three-layer sealed structure between bottom plate 120 and surrounding edge 111, greatly
The big sealing effect improved between bottom plate 120 and surrounding edge 111, so that the sealing performance of battery system entirety is effectively mentioned
Height is conducive to battery system stabilization, safe operation.Wherein, first seal 130 and second seal 140 are each along frame 110
Circumferential setting, it is intended that the edge of cooperation bottom plate 120, so that the edge of bottom plate 120 is had on surrounding edge 111
Effect sealing.Specifically in the present embodiment, surrounding edge 111 is structure as a whole with frame 110, in forming process, passes through punching press, forging
Or bending technique, surrounding edge 111 is formed on the end of frame 110.
It should be noted that the edge of bottom plate 120 is connected on the side of surrounding edge 111, there are two types of states: one, bottom plate 120
Edge be connected to surrounding edge 111 towards on the one side of accommodating chamber 150；Two, the edge of bottom plate 120 is connected to surrounding edge 111 backwards
On the one side of accommodating chamber 150.
It should also be noted that, surrounding edge 111 is arranged on the one side of bottom plate 120 in second seal 140, and from enclosing
Side 111 extends on bottom plate 120；Alternatively, bottom plate 120 is arranged on the one side of surrounding edge 111 in second seal 140, and
It is extended on surrounding edge 111 from bottom plate 120, it should be understood that are as follows: there are four types of states for the present embodiment sealing structure, when bottom plate 120 is connected to
When surrounding edge 111 is towards on the one side of accommodating chamber 150, end and the surrounding edge 111 of bottom plate 120 is arranged in second seal 140
Intersection；Alternatively, the end of surrounding edge 111 and the intersection of bottom plate 120 is arranged in；When bottom plate 120 is connected to surrounding edge 111 backwards to appearance
When receiving on the one side of chamber 150, second seal 140 still may be provided at the end of bottom plate 120 and the intersection of surrounding edge 111；
Alternatively, the end of surrounding edge 111 and the intersection of bottom plate 120 is arranged in, specific structure can refer to Fig. 3.Certainly, work as second seal
140 when being two, and two second seals 140 can be separately positioned on the end of bottom plate 120 and the intersection of surrounding edge 111 and enclose
The intersection of the end on side 111 and bottom plate 120, formed between bottom plate 120 and surrounding edge 111 it is three-layer sealed, in this way, passing through three layers
Sealing structure, so that the sealing performance of Battery case 100 is further enhanced.
Further, referring to FIG. 3, the edge of bottom plate 120 is connected to surrounding edge 111 towards on the one side of accommodating chamber 150.
Surrounding edge 111 is arranged on the one side of bottom plate 120 in second seal 140, and the side of second seal 140 and bottom plate 120
Face connection.It follows that the bottom plate 120 of the present embodiment relative to surrounding edge 111 closer to being arranged in accommodating chamber 150 so that bottom plate
120 are in inner setting in Battery case 100, and the edge of bottom plate 120 is avoided to be directly exposed to outer and corrode vulnerable to the external world.Together
When, surrounding edge 111 is arranged in towards on the one side of accommodating chamber 150, so that 120 pressure-bearing of bottom plate is in surrounding edge in the edge of bottom plate 120
On 111, so that bottom plate 120 is more stably connected with the bearing capacity for being conducive to improve bottom plate 120 in surrounding edge 111.It is same with this
When, surrounding edge 111 is arranged on the one side of bottom plate 120 in second seal 140, that is, second seal 140 is located at surrounding edge
111 then constitute the first waterproof sealing line, directly prevent outside with the outer surface of bottom plate 120 for surrounding edge 111 and bottom plate 120
Water is penetrated between the end and bottom plate 120 of surrounding edge 111, in this way, the present embodiment passes through first seal 130 and second seal
140 work in coordination, and constitute double-layer seal, the sealing performance of Battery case 100 are greatly improved, so that battery system integral waterproofing is close
It seals grade and reaches IP67, even IP68.In addition, the second seal 140 of the present embodiment extends since the side of surrounding edge 111
To bottom plate 120, increase the sealing area of second seal 140 and surrounding edge 111, improves the entire waterproof sealing of Battery case 100
Performance.
In one embodiment, referring to FIG. 3, the edge of bottom plate 120 is connected on the side of surrounding edge 111 by spot welding,
In this way, reducing hot cumulative amount in welding process insole board 120 by spot welding mode, 120 excellent planar degree of bottom plate is kept, is avoided
Plane deformation occurs because of overheat for bottom plate 120, so that battery modules be avoided to lead to external short initiation fire because bottom plate 120 deforms
Or explosion accident.Meanwhile by spot welding mode, 120 excellent planar degree of bottom plate is kept, but also Battery case 100 is made
The property made is effectively controlled with consistency, and it is more stable to be conducive to the production of Battery case 100.In addition, the present embodiment is by spot welding
Mode is organically combined with double-layer seal mode, so that Battery case 100 had not only kept good flatness, but also realizes IP67 even
The waterproof sealing grade of IP68 efficiently solves the technical problems such as deformation, infiltration of Battery case 100 in this field.
Further, referring to FIG. 3, the welding position 190 of spot welding is multiple.Between circumferential direction of multiple welding positions 190 along frame 110
Every setting, and the spacing between two neighboring welding position 190 is 40mm~50mm.The present embodiment will be between two neighboring welding position 190
Spacing be set as 40mm~50mm, not only meet the bonding strength between bottom plate 120 and surrounding edge 111, but also reduce bottom plate 120
On welding fever, keep the higher flatness of bottom plate 120；Meanwhile it being also beneficial to reduce the assembling of bottom plate 120 and surrounding edge 111
Working hour reduces labor intensity, improves the producing efficiency of Battery case 100.Specifically in the present embodiment, two neighboring welding position 190
Between spacing be 45mm.
In one embodiment, please refer to Fig. 3 and Fig. 5, first seal 130 with a thickness of 0.1mm~1mm；First is close
The width of sealing 130 is 10mm~20mm.The present embodiment rationally controls the dimensional parameters of first seal 130, improves bottom plate 120
With the sealing performance between surrounding edge 111.Specifically in the present embodiment, first seal 130 is sealant.The thickness of sealant
Spending is 0.5mm, and the width 14mm of sealant.The thickness of sealant is set as 0.5mm, avoids that glue amount is very few to be caused to seal
Easily there is the problems such as leak, infiltration in performance difference；Avoiding glue amount again excessively leads to that serious excessive glue occurs in tooling assembling process, such as
This, by rationally controlling the dimensional parameters of sealant, so that Battery case 100 had not only had good sealing performance, but also just
Smoothly carry out in tooling assembling work.It should be noted that the thickness of first seal 130 should understand respectively with width are as follows: by
It is arranged in first seal 130 along the circumferential direction of frame 110, i.e., structure annular in shape, therefore, first seal 130 have inside
The thickness of face, lateral surface, bottom surface and top surface, first seal 130 is interpreted as the distance between bottom surface and top surface；First sealing
The width of part 130 is interpreted as the distance between medial surface and lateral surface.
In one embodiment, please refer to Fig. 3 and Fig. 5, second seal 140 with a thickness of 1mm~5mm；Second sealing
The width of part 140 is 15mm~25mm.Equally, by rationally controlling the parameter of second seal 140 so that bottom plate 120 with enclose
Sealing effect is more preferably between side 111.Specifically in the present embodiment, second seal 140 be sealant, sealant with a thickness of
3mm, the width of the sealant are 20mm.During actual job, sealant is coated in the edge or surrounding edge of bottom plate 120
111 side is penetrated by the mobility of sealant itself to the intersection between 120 end of bottom plate and surrounding edge 111；Or
Intersection between 111 end of bottom plate 120 and surrounding edge, is automatically performed the operation of second seal 140, in this way, making battery case
The assembling work of body 100 is more convenient, quick.Wherein, the thickness with width of second seal 140 should understand respectively are as follows: second
Sealing element 140 is arranged along the circumferential direction of frame 110, therefore, the thickness of second seal 140 be interpreted as bottom surface and top surface it
Between distance；The width of second seal 140 is interpreted as the distance between medial surface and lateral surface.
Specifically, first seal 130 and second seal 140 are sealant, first seal 130 with a thickness of
0.5mm, width 14mm, meanwhile, second seal 140 with a thickness of 3mm, width 20mm, gained Battery case 100 is by airtight
Property test, test result meets 500mm significantly3The technical requirements of/s.100 test process of Battery case, first to battery case
Air is injected in body 100, and maintaining the intracorporal pressure of case is 0.1bar；Liquid under 0.1bar pressure is recorded by liquid tester again
Body height of water level value calculates whether liquid water level slippage meets 500mm after five minutes3The technical requirements of/s.Wherein, due to close
Sealing has mobility, and therefore, the thickness value and width value of sealant are measured in gluing.
In one embodiment, referring to FIG. 3, Battery case 100 further includes protective layer 180.Protective layer 180 is covered on bottom
Plate 120, by protective layer 180, covers on the one side of accommodating chamber 150 and on the surrounding edge 111 backwards one side of accommodating chamber 150
The outside in bottom plate 120 and surrounding edge 111 is covered, prevents the sundries such as sandstone, wooden pipe, iron pipe from directly carrying out to bottom plate 120 and surrounding edge 111
Impact reduces the damage to bottom plate 120 and surrounding edge 111, is conducive to bottom plate 120 and surrounding edge 111 remains high flatness, from
And make battery system stabilization, safe operation.
In one embodiment, bottom plate 120 on the one side of accommodating chamber 150 with surrounding edge 111 backwards to accommodating chamber 150
Erosion resistant coating is equipped on one side.In this way, advantageously reducing the erosion of bottom plate 120 Yu surrounding edge 111 by erosion resistant coating, electricity is kept
The Integrity And Reliability of 100 structure of pond cabinet.Meanwhile will form a kind of oxidation film on the erosion resistant coating, which is conducive to
The absorption of subsequent spraying process increases the binding force between spraying and bottom plate 120, improves integrally-built stability.Wherein, prevent
Anodic oxidation, electrophoresis, plating or other surfaces treatment process can be used in rotten layer process.
In one embodiment, referring to FIG. 1, Battery case 100 further includes more than two support components 160, two with
The upper interval of support component 160 is connected on the inner sidewall of frame 110, for installing battery between two neighboring support component 160
Mould group.In this way, by support component 160, so that battery modules stablize installation.
Further, referring to FIG. 1, support component 160 includes module support beam 162 and is arranged in module support beam 162
Load bearing beam 161.The both ends of load bearing beam 161 are connect with the inner sidewall of frame 110 respectively.Module support beam 162 is for installing electricity
Chi Mo group.It follows that load bearing beam 161 plays a part of main carrying in Battery case 100, for protecting battery modules；And mould
Group supporting beam 162 is then mounted directly fixed battery modules.Specifically in the present embodiment, load bearing beam 161 selects yield strength to be greater than
700MPa；Tensile strength is the material of 750MPa, rigidity and intensity with higher；Module support beam 162 then selects surrender strong
Degree is greater than 260MPa~320MPa；Tensile strength is the material of 360MPa~440MPa, has excellent toughness, is had to battery modules
There is certain shock absorbing effect.
In one embodiment, referring to FIG. 1, Battery case 100 further includes mounting structure 170, mounting structure 170 and branch
Support component 160 is located in accommodating chamber 150 side by side, and mounting structure 170 is also used for installation battery modules.Specifically in the present embodiment,
Mounting structure 170 is designed in palisading type, and mounting structure 170 is spaced apart with bottom plate 120, that is, so that being arranged in mounting structure
Battery modules and bottom plate 120 on 170 keep certain intervals, not only contribute to battery modules heat dissipation, and effectively avoid battery
Mould group is contacted with the condensed water on bottom plate 120, in this way, promoting the security performance of battery system further.
In one embodiment, Fig. 4 and Fig. 5 are please referred to, high pressure is additionally provided on frame 110 and patches mounting hole 114, in this way,
Length, the quantity of connector of route and water route are reduced, the integrated design layout of battery system is realized, improves the route cloth of vehicle
Office, promotes the security reliability of vehicle.Meanwhile collision prevention girders hangers 113 and chassis hangers 112 are additionally provided on frame 110, in this way,
It is designed by above collision prevention girders hangers 113 and chassis hangers 112, so that Battery case 100 is tightly fastened with collision prevention girders, chassis
Connection, promotes the safety and stability of battery system.
In one embodiment, please refer to Fig. 1, Fig. 2 and Fig. 3, a kind of battery system, including lid, battery modules and with
Battery case 100 in upper any embodiment.Battery modules are packed into accommodating chamber 150.Lid is arranged on frame 110.
The edge of bottom plate 120, is connected to the side of surrounding edge 111 by above-mentioned battery system, the Battery case 100 more than
On face, so that bottom plate 120 and frame 110 surround accommodating chamber 150, so as to battery modules loading, so that battery modules are stablized
Installation.Due between the edge of bottom plate 120 and the side of surrounding edge 111 be arranged first seal 130 so that bottom plate 120 with enclose
It is closely connected between side 111, reduces the gap between bottom plate 120 and surrounding edge 111；Meanwhile the present embodiment is in the end of surrounding edge 111
Between the side of bottom plate 120, and cover the gap between the end of surrounding edge 111 and the side of bottom plate 120；And/or in bottom plate
Between 120 end and the side of surrounding edge 111, and the gap between the end of bottom plate 120 and the side of surrounding edge 111 is covered, made
The end for obtaining bottom plate 120 is coated on surrounding edge 111 by second seal 140；Alternatively, making the end of surrounding edge 111 by the
Two sealing elements 140 are coated on bottom plate 120, in this way, make between bottom plate 120 and surrounding edge 111 formed double-layer sealing structure or
Three-layer sealed structure greatly improves the sealing effect between bottom plate 120 and surrounding edge 111, so that the anti-watertight of battery system entirety
Sealing property effectively improves, and is conducive to battery system stabilization, safe operation.
In one embodiment, Fig. 1, Fig. 2, Fig. 3 and Fig. 6 are please referred to, a kind of 100 encapsulating method of Battery case, including such as
Lower step:
S10, first seal 130 is set between the edge of bottom plate 120 and the side of surrounding edge 111, wherein the first sealing
Part 130 is arranged along the circumferential direction of frame 110；
After S20, setting first seal 130, the edge of bottom plate 120 and the side of surrounding edge 111 are welded；
After S30, welding, second seal 140 is set on one side of the surrounding edge 111 backwards to bottom plate 120, and close by second
Sealing 140 extends on bottom plate 120 from surrounding edge 111；And/or it is arranged second on one side of the bottom plate 120 backwards to surrounding edge 111
Sealing element 140, and second seal 140 is extended on surrounding edge 111 from bottom plate 120；Wherein, second seal 140 is along side
The circumferential setting of frame 110.
Above-mentioned 100 encapsulating method of Battery case is arranged first between the edge of bottom plate 120 and the side of surrounding edge 111
Sealing element 130 reduces the gap between bottom plate 120 and surrounding edge 111 so that closely connecting between bottom plate 120 and surrounding edge 111；Together
When, second seal 140 is arranged on one side of the surrounding edge 111 backwards to bottom plate 120 in the present embodiment, and by second seal 140
It is extended on bottom plate 120 from surrounding edge 111；Alternatively, second seal is arranged on one side of the bottom plate 120 backwards to surrounding edge 111
140, and second seal 140 is extended on surrounding edge 111 from bottom plate 120, so that the end of bottom plate 120 passes through second seal
140 are coated on surrounding edge 111；Alternatively, being coated on the end of surrounding edge 111 on bottom plate 120 by second seal 140, such as
This is greatly improved close between bottom plate 120 and surrounding edge 111 so that forming double-layer sealing structure between bottom plate 120 and surrounding edge 111
Effect is sealed, so that the sealing performance of battery system entirety effectively improves, is conducive to battery system stabilization, safety fortune
Row.
Further, referring to FIG. 7, after the step of S30 is arranged along the circumferential direction of frame 110 in second seal 140, also
Include:
S31, preservative treatment is carried out to bottom plate 120 and surrounding edge 111；
After S32, preservative treatment, to bottom plate 120 backwards to accommodating chamber 150 one side and surrounding edge 111 backwards to accommodating chamber 150
One side is sprayed, and protective layer 180 is formed.
In the above method, preservative treatment is carried out on bottom plate 120 and surrounding edge 111, increases the anticorrosive of Battery case 100
Property；Wherein, preservative treatment can use electricity for anodic oxidation, plating, electrophoresis, spraying or other surfaces processing, the present embodiment
Swimming processing.Meanwhile preservative treatment is carried out on bottom plate 120 and surrounding edge 111, the adhesive force of protective layer 180 can be increased, to improve
The overall structural strength of Battery case 100.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of Battery case characterized by comprising
Frame, the inner sidewall of the frame are equipped with surrounding edge, and the surrounding edge is arranged along the circumferential direction of the frame；
Bottom plate, the edge of the bottom plate are connected on the side of the surrounding edge, and the bottom plate is surrounded with the frame for pacifying
The accommodating chamber of packed battery mould group；
First seal, the first seal are arranged between the edge of the bottom plate and the side of the surrounding edge, and described
First seal is arranged along the circumferential direction of the frame；And
Second seal, the second seal is arranged between the end of the surrounding edge and the side of the bottom plate, and covers
Gap between the end of the surrounding edge and the side of the bottom plate；And/or the bottom plate is arranged in the second seal
Between end and the side of the surrounding edge, and cover the gap between the end of the bottom plate and the side of the surrounding edge；It is described
Second seal is arranged along the circumferential direction of the frame.
2. Battery case according to claim 1, which is characterized in that the edge of the bottom plate is connected to the surrounding edge direction
On the one side of the accommodating chamber, the surrounding edge is arranged on the one side of the bottom plate in the second seal, and institute
Second seal is stated to connect with the side of the bottom plate.
3. Battery case according to claim 1, which is characterized in that the edge of the bottom plate is connected to described by spot welding
On the side of surrounding edge.
4. Battery case according to claim 3, which is characterized in that the welding position of the spot welding is multiple, multiple welderings
Position being provided at circumferentially spaced along the frame, and the spacing between the two neighboring welding position is 40mm~50mm.
5. Battery case according to claim 1, which is characterized in that the first seal with a thickness of 0.1mm~
1mm；The width of the first seal is 10mm~20mm；Alternatively,
The second seal with a thickness of 1mm~5mm；The width of the second seal is 15mm~25mm.
6. Battery case according to claim 1, which is characterized in that further include protective layer, the protective layer is covered on institute
State bottom plate on the one side of the accommodating chamber with the surrounding edge on the one side of the accommodating chamber.
7. Battery case described in -6 any one according to claim 1, which is characterized in that further include more than two support groups
Part, more than two support component intervals are connected on the inner sidewall of the frame, between the two neighboring support component
For installing battery modules.
8. a kind of battery system, which is characterized in that including electricity described in lid, battery modules and claim 1-7 any one
Pond cabinet, the battery modules are packed into the accommodating chamber, and the lid is arranged on the frame.
9. a kind of Battery case encapsulating method, which comprises the steps of:
First seal is set between the edge of bottom plate and the side of surrounding edge, wherein the first seal is along frame
Circumferential setting；
It is arranged after the first seal, the edge of the bottom plate and the side of the surrounding edge is welded；
After welding, second seal is set on the one side of the bottom plate in the surrounding edge, and by the second seal
It is extended on the bottom plate from the surrounding edge；And/or the second sealing is set on the one side of the surrounding edge in the bottom plate
Part, and the second seal is extended on the surrounding edge from the bottom plate；Wherein, the second seal is along the side
The circumferential setting of frame.
10. Battery case encapsulating method according to claim 9, which is characterized in that the second seal is along described
After the step of circumferential setting of frame, further includes:
Preservative treatment is carried out to the bottom plate and the surrounding edge；
After preservative treatment, to the bottom plate backwards to accommodating chamber one side and the surrounding edge backwards to the accommodating chamber one side into
Row spraying, forms protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882158.9A CN110534668A (en) | 2019-09-18 | 2019-09-18 | Battery case, Battery case encapsulating method and battery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882158.9A CN110534668A (en) | 2019-09-18 | 2019-09-18 | Battery case, Battery case encapsulating method and battery system |
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| Publication Number | Publication Date |
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| CN110534668A true CN110534668A (en) | 2019-12-03 |
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ID=68669132
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910882158.9A Pending CN110534668A (en) | 2019-09-18 | 2019-09-18 | Battery case, Battery case encapsulating method and battery system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207052642U (en) * | 2016-11-18 | 2018-02-27 | 东软集团股份有限公司 | A kind of battery case and the electric automobile with the battery case |
| CN108428832A (en) * | 2018-03-23 | 2018-08-21 | 浙江零跑科技有限公司 | A kind of Battery case and preparation method thereof |
| CN109671890A (en) * | 2019-01-11 | 2019-04-23 | 广州纵通汽车设计有限公司 | Battery box body and battery case |
| WO2019148629A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN210640275U (en) * | 2019-09-18 | 2020-05-29 | 恒大新能源汽车科技(广东)有限公司 | Battery box and battery system |
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2019
- 2019-09-18 CN CN201910882158.9A patent/CN110534668A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207052642U (en) * | 2016-11-18 | 2018-02-27 | 东软集团股份有限公司 | A kind of battery case and the electric automobile with the battery case |
| WO2019148629A1 (en) * | 2018-01-31 | 2019-08-08 | 宁德时代新能源科技股份有限公司 | Battery module |
| CN108428832A (en) * | 2018-03-23 | 2018-08-21 | 浙江零跑科技有限公司 | A kind of Battery case and preparation method thereof |
| CN109671890A (en) * | 2019-01-11 | 2019-04-23 | 广州纵通汽车设计有限公司 | Battery box body and battery case |
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