CN207690864U - Battery pack case and battery pack - Google Patents
Battery pack case and battery pack Download PDFInfo
- Publication number
- CN207690864U CN207690864U CN201721859954.3U CN201721859954U CN207690864U CN 207690864 U CN207690864 U CN 207690864U CN 201721859954 U CN201721859954 U CN 201721859954U CN 207690864 U CN207690864 U CN 207690864U
- Authority
- CN
- China
- Prior art keywords
- pallet
- battery pack
- groove
- pack case
- glue
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 42
- 239000003292 glue Substances 0.000 claims description 22
- 239000003063 flame retardant Substances 0.000 claims description 13
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims 1
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000000047 product Substances 0.000 description 4
- 230000000979 retarding effect Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 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
- Pallets (AREA)
Abstract
The utility model belongs to field of batteries, it is related to a kind of battery pack case and battery pack, the battery pack case includes sealing cover and pallet, the sealing cover is arranged on the pallet, the bottom of the sealing cover extends outward to form flange, and the lower surface of the flange is equipped with the groove enclosed around the flange one, and the upper surface of the pallet covers the groove, glue-line is filled in the groove, the sealing cover is fixedly connected with the pallet by the glue-line.The battery pack case surround the groove of the circle of flange one by being arranged in the lower surface of flange, then covers groove with the upper surface of pallet, then glue-line is filled in groove so that sealing cover can be fixed on pallet by glue-line, and such fixed form is more secured.Meanwhile by way of filling glue-line in groove can make that connection is fully sealed between sealing cover and pallet, avoid flange and pallet junction there are it is partially sealed it is bad caused by security risk.
Description
Technical field
The utility model belongs to battery technology field, more particularly to a kind of battery pack case and battery pack.
Background technology
With the raising of mankind's environmental consciousness, electric vehicle and hybrid electric vehicle replace existing fuel vehicle that will be following
One inexorable trend.As the core drive energy-battery modules of electric vehicle, importance seems especially prominent.
Battery accommodating chamber is formed between pallet and sealing cover, and battery modules are placed in battery accommodating chamber and form battery
Packet, to prevent the leakage of battery modules, the leakproofness between pallet and sealing cover is particularly important.
Existing sealing cover is polypropylene (PP) plastic uptake sealing cover, cannot meet lithium ion battery of electric automobile battery pack
Baked wheaten cake requirement in (GB/T 31467.3-2015) security requirement.As illustrated in fig. 1 and 2, existing sealing cover 1a and pallet 2a
By bolt 3a by sealing cover 1a and pallet 2a fixing seals.There are offices between sealing cover 1a and pallet 2a for such sealing means
The poorly sealed risk in portion, easily leads to security risk.
Utility model content
Technical problem to be solved in the utility model is：It the technical issues of for battery pack case poor sealing, provides
A kind of battery pack case.
In order to solve the above technical problems, on the one hand, the utility model embodiment provides a kind of battery pack case, including close
Capping and pallet, the sealing cover are arranged on the pallet, and the bottom of the sealing cover extends outward to form flange, described
The lower surface of flange is equipped with the groove enclosed around the flange one, and the upper surface of the pallet covers the groove, described
Glue-line is filled in groove, the sealing cover is fixedly connected with the pallet by the glue-line.
Optionally, the upper surface of the flange is horizontal plane, and the lower surface of the pallet is horizontal plane.
Optionally, the flange includes marginal portion, middle section and inboard portion, the outside of the middle section with
The marginal portion connection, the inside of the middle section are connect with the inboard portion, and the groove is arranged in the centre
Partial lower surface.
Optionally, the thickness of the marginal portion is less than the thickness of the inboard portion.
Optionally, the lower surface of the marginal portion is horizontal plane, and the upper surface of the pallet is horizontal plane, the edge
Excessive glue gap is formed between partial lower surface and the upper surface of the pallet, the excessive glue gap is connected to the groove, interior
The lower surface of side section is bonded with the upper surface of the pallet.
Optionally, the groove has top surface, first side and second side, the outside of the top surface and first side
The top side in face is connected, and the inside of the top surface is connected with the top side of the second side, the upper table of the top surface and the pallet
Face is parallel；
The first side and the angle of the top surface are greater than or equal to 90 degree, the folder of the second side and the top surface
Angle is greater than or equal to 90 degree.
Optionally, the outer edge of the marginal portion is concordant with the outer edge of the pallet.
Optionally, the upper surface of the flange is equipped with the hole for injecting glue that is connected to the groove, by the hole for injecting glue to
The groove injects fluid sealant to form the glue-line.
Optionally, the sealing cover is made of fire-retardant continuous web prepreg.
On the other hand, the utility model also provides a kind of battery pack, including battery modules and above-mentioned battery pack case, described
Battery modules are arranged in the battery pack case.
According to the battery pack case that the utility model embodiment provides, by being arranged around flange in the lower surface of flange
The groove that side one is enclosed, then groove is covered with the upper surface of pallet, then glue-line is filled in groove so that glue-line can will seal
Lid is fixed on pallet, and such fixed form is more secured.Meanwhile sealing cover can be made by way of filling glue-line in groove
Be fully sealed and connect between pallet, avoid flange and pallet junction there are it is partially sealed it is bad caused by safety it is hidden
Suffer from.
Description of the drawings
Fig. 1 is the sectional view of battery pack case in the prior art；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the sectional view for the battery pack case that one embodiment of the utility model provides；
Fig. 4 is the enlarged drawing at B in Fig. 3.
Reference numeral in specification is as follows：
1a, sealing cover；2a, pallet；3a, bolt；
1, sealing cover；11, marginal portion；12 middle sections；121, groove；1211, top surface；1212, first side；
1213, second side；13, inboard portion；
2, pallet.
Specific implementation mode
The technical issues of in order to keep the utility model solved, technical solution and advantageous effect are more clearly understood, below
In conjunction with accompanying drawings and embodiments, the utility model is described in further detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
As shown in Figures 3 and 4, the battery pack case that one embodiment of the utility model provides, including sealing cover 1 and pallet 2, institute
It states sealing cover 1 to be arranged on the pallet 2, the bottom of the sealing cover 1 extends outward to form flange, under the flange
Surface is equipped with the groove 121 enclosed around the flange one, and the upper surface of the pallet 2 covers the groove 121, the groove
Glue-line is filled in 121, the sealing cover 1 is fixedly connected with the pallet 2 by the glue-line.
By the way that the groove 121 enclosed around flange one, then the upper surface covering with pallet 2 is arranged in the lower surface of flange
Then glue-line is filled in groove 121 by groove 121 so that sealing cover 1 can be fixed on pallet 2 by glue-line, such fixation
Mode is more secured.Meanwhile the company of being fully sealed between sealing cover 1 and pallet 2 can be made by way of the filling glue-line in groove 121
Connect, avoid flange and 2 junction of pallet there are it is partially sealed it is good caused by security risk.
In a certain embodiment, the upper surface of the flange is horizontal plane, and the lower surface of the pallet 2 is horizontal plane.
The lower surface of pallet 2 is horizontal plane, so that pallet 2 is placed more secured.
In a certain embodiment, the flange includes marginal portion 11, middle section 12 and inboard portion 13, in described
Between the outside of part 12 connect with the marginal portion 11, the inside of the middle section 12 is connect with the inboard portion 13,
The lower surface in the middle section 12 is arranged in the groove 121.It should be understood that flange surround 1 edge of sealing cover
One encloses, and marginal portion 11, middle section 12 and the inboard portion 13 on flange are surround 1 edge of sealing cover first respectively
Circle, the second circle and third circle, groove 121 are arranged on the lower surface of the second circle.
In a certain embodiment, the thickness of the marginal portion 11 is less than the thickness of the inboard portion 13.The edge
The lower surface of part 11 is horizontal plane, and the upper surface of the pallet 2 is horizontal plane, the lower surface of the marginal portion 11 with it is described
Excessive glue gap is formed between the upper surface of pallet 2, the excessive glue gap is connected to the groove 121, the following table of inboard portion 13
Face is bonded with the upper surface of the pallet 2.It should be understood that the lower surface of marginal portion 11 is parallel with the upper surface of pallet 2, it is interior
The lower surface of side section 13 is bonded with the upper surface of pallet 2, and the thickness of marginal portion 11 is less than the thickness of inboard portion 13, from
And excessive glue gap can be formed between the lower surface and the upper surface of pallet 2 of marginal portion 11, excessive glue gap is penetrated through with groove 121,
When injecting glue-line into groove 121, after the glue-line in groove 121 fills, glue-line can be overflowed by excessive glue gap, between excessive glue
The edge of gap sees that glue-line spilling then can determine that 121 mesoglea of groove has filled, after curable adhesive layer, sealing cover 1 and pallet 2 it
Between may be implemented to be tightly connected.
The section of groove 121 is quadrangle, and quadrangle can be similar trapezoidal or irregular quadrilateral etc..In a certain implementation
Example in, the groove 121 have top surface 1211, first side 1212 and second side 1213, the outside of the top surface 1211 with
The top side of the first side 1212 is connected, and the inside of the top surface 1211 is connected with the top side of the second side 1213, institute
It is parallel with the upper surface of the pallet 2 to state top surface 1211；The angle of the first side 1212 and the top surface 1211 be more than or
Equal to 90 degree, the second side 1213 and the angle of the top surface 1211 are greater than or equal to 90 degree.
In a certain embodiment, the outer edge of the marginal portion 11 is concordant with the outer edge of the pallet 2.It helps in this way
It determines whether the glue-line in groove 121 fills by excessive glue gap in time, prevents the waste of glue-line.
The upper surface of the flange is equipped with the hole for injecting glue (not shown) being connected to the groove 121, by described
Hole for injecting glue injects fluid sealant to form the glue-line to the groove 121.It should be understood that hole for injecting glue and groove 121 are penetrated through,
One end open in hole for injecting glue towards the upper surface of flange injects glue-line in groove 121.
In a certain embodiment, fluid sealant can be structure glue, and structure glue can bear larger load, have ageing-resistant, resistance to
The good characteristics such as tired and corrosion-resistant, and structure glue performance in life expectancy is stablized.
In a certain embodiment, the sealing cover 1 is made of fire-retardant continuous web prepreg.The fire-retardant continuous web
Prepreg is by 600-900g/m2Twill woven roving and fire retarding epoxide resin form.Twill woven roving can be glass-fiber-fabric, with resistance
The total weight for firing continuous web prepreg, the mass fraction of each component is as follows in fire-retardant continuous web prepreg：Glass-fiber-fabric
Mass fraction is 40%-60%, and the mass fraction of fire retarding epoxide resin is 60%-40%.In terms of the weight of fire retarding epoxide resin,
The mass fraction of each component is as follows in fire retarding epoxide resin：The mass fraction of epoxy resin is 50%-70%, the matter of fire-retardant filler
Amount score is 30%-50%.It adopts because fire-retardant continuous web prepreg can meet lithium ion battery of electric automobile battery pack safety
Property require in baked wheaten cake requirement, so, the sealing cover 1 made of fire-retardant continuous web prepreg can also meet electric vehicle lithium from
Baked wheaten cake requirement in sub- battery packet security requirement.
The forming method that sealing cover 1 is made by fire-retardant continuous web prepreg is as follows：
Fire-retardant continuous web prepreg is cut：Splicing is split by product structure is horizontal and vertical to the progress of product digital-to-analogue
Block, guillotine cut fire-retardant continuous web prepreg by horizontal and vertical fractionation block；
It is preforming：It is laid with fire-retardant continuous web prepreg by design laying on preforming tool, using dislocation docking
Mode cuts (horizontal and vertical) the alternately laying of mode, compacting by two kinds；
It is preforming：It is laid with fire-retardant continuous web prepreg by design laying in SMC (pneumatic element) product surface, using mistake
Position docking mode by two kinds cut mode it is (horizontal and vertical) alternately be laid with, compacting, obtain it is preforming after blank；
Compression molding：Blank after will be preforming is removed from SMC product surfaces to be put into molding die, and compression molding obtains
Blank；
Demoulding：Blank is taken out from molding die；
It cuts：The blank trimming of taking-up is obtained into finished product.
Another embodiment of the use of the new type provides a kind of battery pack, including battery modules and above-mentioned battery pack case, institute
Battery modules are stated to be arranged in the battery pack case.It should be understood that battery pack case includes pallet 2 and sealing cover 1, pallet
2 and sealing cover 1 before form battery accommodating chamber, several battery modules are placed again in battery accommodating chamber, pallet 2 and sealing cover 1
Between by way of splicing fixing seal.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (10)
1. a kind of battery pack case, which is characterized in that including sealing cover and pallet, the sealing cover is arranged on the pallet,
The bottom of the sealing cover extends outward to form flange, and the lower surface of the flange is equipped with around the circle of the flange one
The upper surface of groove, the pallet covers the groove, glue-line is filled in the groove, the sealing cover is logical with the pallet
The glue-line is crossed to be fixedly connected.
2. battery pack case according to claim 1, which is characterized in that the upper surface of the flange is horizontal plane, institute
The lower surface for stating pallet is horizontal plane.
3. battery pack case according to claim 2, which is characterized in that the flange includes marginal portion, middle part
Point and inboard portion, the outside of the middle section connect with the marginal portion, the inside of the middle section with it is described interior
Side section connects, and the lower surface in the middle section is arranged in the groove.
4. battery pack case according to claim 3, which is characterized in that the thickness of the marginal portion is less than the inside
Partial thickness.
5. battery pack case according to claim 4, which is characterized in that the lower surface of the marginal portion is horizontal plane,
The upper surface of the pallet is horizontal plane, is formed between excessive glue between the lower surface of the marginal portion and the upper surface of the pallet
Gap, the excessive glue gap are connected to the groove, and the lower surface of the inboard portion is bonded with the upper surface of the pallet.
6. battery pack case according to claim 1, which is characterized in that the groove has top surface, first side and the
Two side faces, the outside of the top surface are connected with the top side of the first side, the inside of the top surface and the second side
Top side is connected, and the top surface is parallel with the upper surface of the pallet；
The first side and the angle of the top surface are greater than or equal to 90 degree, and the second side and the angle of the top surface are big
In or equal to 90 degree.
7. battery pack case according to claim 3, which is characterized in that the outer edge of the marginal portion and the pallet
Outer edge it is concordant.
8. battery pack case according to claim 1, which is characterized in that the upper surface of the flange be equipped with it is described recessed
The hole for injecting glue of slot connection injects fluid sealant to form the glue-line by the hole for injecting glue to the groove.
9. battery pack case according to claim 1, which is characterized in that the sealing cover is presoaked using fire-retardant continuous web
Material is made.
10. a kind of battery pack, which is characterized in that including any one of battery modules and claim the 1-9 battery pack case, institute
Battery modules are stated to be arranged in the battery pack case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859954.3U CN207690864U (en) | 2017-12-26 | 2017-12-26 | Battery pack case and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721859954.3U CN207690864U (en) | 2017-12-26 | 2017-12-26 | Battery pack case and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207690864U true CN207690864U (en) | 2018-08-03 |
Family
ID=62992354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721859954.3U Expired - Fee Related CN207690864U (en) | 2017-12-26 | 2017-12-26 | Battery pack case and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207690864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473584A (en) * | 2018-11-19 | 2019-03-15 | 苏州银禧新能源复合材料有限公司 | Battery box cover and its moulding process |
| CN109687039A (en) * | 2018-11-30 | 2019-04-26 | 金山电化工业（惠州）有限公司 | Novel lead-free zinc chloride batteries group |
| CN110815993A (en) * | 2018-08-09 | 2020-02-21 | 宁德时代新能源科技股份有限公司 | Battery protective layer, preparation method and application of battery protective layer in battery assembly |
-
2017
- 2017-12-26 CN CN201721859954.3U patent/CN207690864U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110815993A (en) * | 2018-08-09 | 2020-02-21 | 宁德时代新能源科技股份有限公司 | Battery protective layer, preparation method and application of battery protective layer in battery assembly |
| CN110815993B (en) * | 2018-08-09 | 2021-11-09 | 宁德时代新能源科技股份有限公司 | Battery protective layer, preparation method and application of battery protective layer in battery assembly |
| CN109473584A (en) * | 2018-11-19 | 2019-03-15 | 苏州银禧新能源复合材料有限公司 | Battery box cover and its moulding process |
| CN109687039A (en) * | 2018-11-30 | 2019-04-26 | 金山电化工业（惠州）有限公司 | Novel lead-free zinc chloride batteries group |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |