CN205452396U - battery box with waterproof structure - Google Patents
battery box with waterproof structure Download PDFInfo
- Publication number
- CN205452396U CN205452396U CN201620158310.0U CN201620158310U CN205452396U CN 205452396 U CN205452396 U CN 205452396U CN 201620158310 U CN201620158310 U CN 201620158310U CN 205452396 U CN205452396 U CN 205452396U
- Authority
- CN
- China
- Prior art keywords
- upper cover
- lower box
- battery case
- sealing strip
- box
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 238000005452 bending Methods 0.000 claims abstract description 30
- 238000010276 construction Methods 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 abstract description 9
- 230000006835 compression Effects 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a battery box with waterproof construction, include box under battery box upper cover and the battery box that connect through the fastener, be provided with the sealing strip under this battery box upper cover and the battery box between the box, the edge of battery box upper cover has twice bend downwards once outside turn-ups stair structure, forms the first upper cover that connects gradually and bends under, bend under upper cover flanging and the second upper cover, the edge of box under the battery box adopts whole inside turn-ups to bend upwards, press down the limit after the turn-ups down again, forms turn-ups in the lower box that connects gradually, bend on the lower box, press dead limit and the outer turn-ups of lower box top. The utility model discloses install the sealing strip in the airtight space of the turn-ups formation of bending of box under battery box upper cover and the battery box, can prevent the sealing strip to extend the compression volume of guaranteeing the sealing strip to both sides, through the bottom of bending under the control second upper cover to the turn-ups distance in the lower box, realize the adjustment of sealing strip compression volume.
Description
Technical field
This utility model relates to automobile lithium battery technical field, is specifically related to a kind of waterproof construction for battery case.
Background technology
The processing technology of battery for electric automobile case includes: first by series connection and/or parallel connection, multiple batteries are formed a battery module, the most again by multiple battery modules by series connection and/or one battery case of formation in parallel.Battery case is the power resources of electric automobile, is its core component, and the safety of battery case directly influences the safety of car load.
Difference according to the type of cooling, battery case includes water-cooled cells case, air-cooled battery case, owing to the output voltage of battery for electric automobile case is up to more than 200V, and the intrusion of water can cause short circuit, therefore battery case must strict seal to prevent water from entering, the degree of protection of battery case requires to reach more than IP67.As can be seen here, battery case must be all strict seal, and is required for arranging balanced valve upper covering, to play adjustment battery case inside and outside differential pressure and explosion-proof effect.And for air-cooled battery case, in addition to necessary air vent, remainder all can not communicate with air, flow velocity and the flow direction of the cooling air-flow in seal box need strict control, can not allow seal box that leakage occurs, to avoid the difference of flowability cooling down air-flow to cause the inconsistent of battery module operating temperature, thus cause the deterioration of consistency of performance.
As can be seen here, structure design and the sealing thereof of battery case is directly connected to the safe working condition of internal cell module.The sealing of traditional battery case realizes by covering thereon and adding sealing gasket between lower cover, and wherein sealing gasket is mounted to lower box edge, and this sealing structure has the disadvantage that
The first, the degree of protection that this sealing structure can reach is typically at below IP66, it is impossible to meets higher degree of protection and requires:
The second, for the battery case that box volume is bigger, sealing gasket is usually and is spliced by polylith sealing gasket, and seal failure easily occurs in the seam at sealing gasket Yu sealing gasket；
3rd, sealing gasket is by locking compression seal pad between upper cover and lower box, sealing gasket compression excess or compression incomplete phenomena easily occurs, causes seal failure；
4th, sealing gasket compression process extends to both sides so that sealing gasket is not reaching to required decrement after locking puts in place, thus affects sealing.
Utility model content
For the deficiencies in the prior art, this utility model provides a kind of battery case with waterproof construction, this structure has simply, degree of protection height, length in service life, seal reliably, versatility extensively, the feature such as easy accessibility and low cost.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of battery case with waterproof construction, including the battery case upper cover connected by securing member and battery case lower box, it is provided with sealing strip between this battery case upper cover and battery case lower box, the edge of described battery case upper cover has the ledge structure of outward flanging of twice downward bending, form bending under the first upper cover being sequentially connected with, bending under upper cover flanging and the second upper cover, the edge of described battery case lower box uses overall to the backward upper bending of in-flanges, kill outward flanging behind limit still further below, form the lower box in-flanges being sequentially connected with, bending on lower box, lower box top kills limit and lower box flanging.
Further, the region that under described sealing strip is arranged on the bottom of described upper cover flanging, the top of lower box in-flanges and the second upper cover, bending and lower box top kill between limit.
Preferably, described securing member coordinates with nut strip after sequentially passing through described upper cover flanging, sealing strip and lower box flanging.
Further, when under described second upper cover, the bottom of bending contacts with described lower box in-flanges, the compress variation of described sealing strip is between 2nd/1 to three/2nds of sealing strip thickness.
From above technical scheme, sealing strip is installed in the confined space of bending flange formation of battery case upper cover and battery case lower box by this utility model, it is possible to stop sealing strip to extend the decrement ensureing sealing strip to both sides；To the distance of lower box in-flanges, the adjustment of sealing strip decrement is realized by controlling the bottom of bending under the second upper cover；By the bending turnup structure of battery case upper cover and battery case lower box, improve the overall construction intensity of battery case, it is ensured that compression seal effect；After being compressed by securing member, it is possible to achieve the positive sealing of battery case.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model battery case；
Fig. 2 is the structural representation of battery case upper cover in this utility model；
Fig. 3 is the structural representation of battery case lower box in this utility model；
Fig. 4 is the partial sectional view at this utility model battery case sealing；
Fig. 5 is the exploded perspective view of Fig. 4.
In figure: 10, battery case upper cover, 11, bending under the first upper cover, 12, upper cover flanging, bending under the 13, second upper cover, 20, battery case lower box, 21, lower box in-flanges, 22, bending on lower box, 23, lower box top kill limit, 24, lower box flanging, 30, securing member, 31, nut strip, 40, sealing strip.
Detailed description of the invention
Below in conjunction with the accompanying drawings a kind of preferred implementation of the present utility model is described in detail.
As shown in Figure 1,2 and 3, described battery case includes battery case upper cover 10 and battery case lower box 20, is provided with sealing strip 40, and is fixed by securing member 30 between this battery case upper cover and edge of battery case lower box.
As shown in Figures 4 and 5, in order to improve the structural strength of battery case, described battery case upper cover 10 and battery case lower box 20 use flange bending structure, wherein the edge of battery case upper cover 10 uses the ledge structure of outward flanging of twice downward bending, forms bending 13 under bending 11 under the first upper cover being sequentially connected with, upper cover flanging 12 and the second upper cover.The edge of described battery case lower box 20 uses overall to the backward upper bending of in-flanges, kill outward flanging behind limit still further below, forms the lower box in-flanges 21 that is sequentially connected with, bending 22 on lower box, lower box top kill limit 23 and lower box flanging 24.
Described securing member 30 coordinates with nut strip 31 after sequentially passing through described upper cover flanging 12, sealing strip 40 and lower box flanging 24, by spacing to sealing strip between compression and battery case upper cover and the battery case lower box of securing member during installation, the contact surface of battery case upper cover and battery case lower box is sealed.Described sealing strip 40 is arranged on bending 13 and lower box top under the bottom of described upper cover flanging 12, the top of lower box in-flanges 21 and the second upper cover and kills the region between limit 23, sealing strip is arranged in confined space, sealing strip can be effectively stoped to extend to both sides, it is ensured that the decrement of sealing strip.
After battery case has assembled, difference in height is there is between described upper cover flanging 12 and lower box flanging 24, this difference in height exactly sealing strip reaches the height after optimal seal compress variation, at this moment under the second upper cover, the bottom of bending 13 just contacts with lower box in-flanges 21, is avoided that sealing strip compression excess or compresses the seal failure caused not in place.In the present embodiment, the compress variation of sealing strip 40 is between 2nd/1 to three/2nds of sealing strip thickness.
The degree of protection using this utility model battery case can reach IP67, can meet the seal request of battery case；The complete seal that integral sealing bar can be achieved with battery case only need to be used for the battery case that casing is bigger；This utility model sealing property after being dismounted for multiple times remains able to be guaranteed, and has longer service life, and the carrying out for after-sale service provides safeguard.
The above embodiment is only to be described preferred implementation of the present utility model; not scope of the present utility model is defined; on the premise of without departing from this utility model design spirit; various deformation that the technical solution of the utility model is made by those of ordinary skill in the art and improvement, all should fall in the protection domain that claims of the present utility model determine.
Claims (4)
1. a battery case with waterproof construction, including the battery case upper cover (10) connected by securing member (30) and battery case lower box (20), sealing strip (40) it is provided with between this battery case upper cover and battery case lower box, it is characterized in that, the edge of described battery case upper cover (10) has the ledge structure of outward flanging of twice downward bending, form bending (11) under the first upper cover being sequentially connected with, bending (13) under upper cover flanging (12) and the second upper cover, the edge of described battery case lower box (20) uses overall to the backward upper bending of in-flanges, kill outward flanging behind limit still further below, form the lower box in-flanges (21) being sequentially connected with, bending on lower box (22), lower box top kills limit (23) and lower box flanging (24).
The battery case with waterproof construction the most according to claim 1, it is characterized in that, described sealing strip (40) is arranged on bending (13) and lower box top under the bottom of described upper cover flanging (12), the top of lower box in-flanges (21) and the second upper cover and kills the region between limit (23).
The battery case with waterproof construction the most according to claim 1, it is characterized in that, described securing member (30) sequentially passes through described upper cover flanging (12), sealing strip (40) and lower box flanging (21) and coordinates with nut strip (31) afterwards.
The battery case with waterproof construction the most according to claim 1, it is characterized in that, when under described second upper cover, the bottom of bending (13) contacts with described lower box in-flanges (21), between compress variation is sealing strip thickness 2nd/to three/2nds of described sealing strip (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620158310.0U CN205452396U (en) | 2016-03-02 | 2016-03-02 | battery box with waterproof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620158310.0U CN205452396U (en) | 2016-03-02 | 2016-03-02 | battery box with waterproof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205452396U true CN205452396U (en) | 2016-08-10 |
Family
ID=56604654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620158310.0U Active CN205452396U (en) | 2016-03-02 | 2016-03-02 | battery box with waterproof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205452396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609680A (en) * | 2016-03-02 | 2016-05-25 | 合肥国轩高科动力能源有限公司 | Battery box with waterproof structure |
| CN108063202A (en) * | 2017-12-08 | 2018-05-22 | 江西安驰新能源科技有限公司 | A kind of Battery case |
-
2016
- 2016-03-02 CN CN201620158310.0U patent/CN205452396U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105609680A (en) * | 2016-03-02 | 2016-05-25 | 合肥国轩高科动力能源有限公司 | Battery box with waterproof structure |
| CN105609680B (en) * | 2016-03-02 | 2018-06-05 | 合肥国轩高科动力能源有限公司 | battery box with waterproof structure |
| CN108063202A (en) * | 2017-12-08 | 2018-05-22 | 江西安驰新能源科技有限公司 | A kind of Battery case |
| CN108063202B (en) * | 2017-12-08 | 2023-11-14 | 江西安驰新能源科技有限公司 | Battery box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |