CN105609680A - Battery box with waterproof structure - Google Patents
Battery box with waterproof structure Download PDFInfo
- Publication number
- CN105609680A CN105609680A CN201610117315.3A CN201610117315A CN105609680A CN 105609680 A CN105609680 A CN 105609680A CN 201610117315 A CN201610117315 A CN 201610117315A CN 105609680 A CN105609680 A CN 105609680A
- Authority
- CN
- China
- Prior art keywords
- upper cover
- lower box
- battery case
- sealing strip
- bending
- 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.)
- Granted
Links
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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
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- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a battery box with a waterproof structure. The battery box comprises a battery box upper cover and a battery box lower box body connected through a fastening part, wherein a sealing strip is arranged between the battery box upper cover and the battery box lower box body; a stepped structure including two times of downward bending and one time of outward turning is arranged on the edge of the battery box upper cover to form a first upper cover lower bending part, an upper outer turning edge and a second upper cover lower bending part connected in sequence; the edge of the battery box lower box body is integrally bent upwards, then pressed downwards completely, and then turned outwards to form a lower box inner turning edge, a lower box upper bending part, a lower box body top complete-pressing edge and a lower box outer turning edge connected in sequence. According to the battery box, the sealing strip is mounted in a sealed space formed by the bending turning edges of the battery box upper cover and the battery box lower box body, so that the sealing strip can be prevented from extending towards two sides, and the compression amount of the sealing strip can be ensured; and the adjustment of the compression amount of the sealing strip can be realized by controlling the distance from the bottom of the second upper cover lower bending part to the inner turning edge of the box body.
Description
Technical field
The present invention relates to automobile lithium battery technical field, be specifically related to a kind of waterproof construction for battery case.
Background technology
The manufacture craft of battery for electric automobile case comprises: first multiple batteries are formed to a battery module by series connection and/or parallel connection, and then multiple battery modules are passed through to series connection and/or a battery case of formation in parallel. Battery case is the power resources of electric automobile, is its core component, and the security of battery case directly has influence on the security of car load.
According to the difference of the type of cooling, battery case comprises water-cooled cells case, air-cooled battery case, because 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 strictly seal to prevent that water from entering, more than the degree of protection of battery case requires to reach IP67. As can be seen here, battery case must be all strict sealing, and all need to balanced valve be set upper covering, to play battery case inside and outside differential pressure and the explosion-proof effect adjusted. And for air-cooled battery case, except necessary air vent, remainder all can not communicate with atmosphere, the flow velocity of the cooling blast in seal box and the flow direction need strict control, can not allow seal box to occur leaking, to avoid the difference of flowability of cooling blast to cause the inconsistent of battery module operating temperature, thereby cause the deterioration of consistency of performance.
As can be seen here, the structural design of battery case and sealing thereof are directly connected to the trouble free service situation of internal cell module. The sealing of traditional battery case by cover thereon and lower cover between add sealing gasket and realize, wherein sealing gasket is to be installed on lower box edge, this hermetically-sealed construction has the following disadvantages:
The first, the degree of protection that this hermetically-sealed construction can reach generally, below IP66, can not meet higher degree of protection and require:
The second, for the larger battery case of box volume, sealing gasket is to be generally spliced by polylith sealing gasket, easily occurs seal failure at the interface of sealing gasket and sealing gasket;
Three, sealing gasket, by locking compression seal pad between upper cover and lower box, easily occurs that sealing gasket compression is excessive or compress incomplete phenomena, causes seal failure;
Four, in sealing gasket compression process, extend to both sides, make sealing gasket after locking puts in place, not reach required decrement, thereby affect sealing.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of battery case with waterproof construction, this structure has simply, degree of protection is high, long service life, sealing is reliable, versatility is wide, easy accessibility and the feature such as cost is low.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of battery case with waterproof construction, comprise the battery case upper cover and the battery case lower box that connect by securing member, between this battery case upper cover and battery case lower box, be provided with sealing strip, the edge of described battery case upper cover has the ledge structure of an outward flanging of twice downward bending, form bending under the first upper cover connecting successively, bending under upper cover flanging and the second upper cover, the edge of described battery case lower box adopts entirety to the backward upper bending of in-flanges, kill again outward flanging behind limit downwards, form the lower box in-flanges connecting successively, bending on lower box, lower box top kills limit and lower box flanging.
Further, described sealing strip is arranged on bending and lower box top under the top of bottom, lower box in-flanges of described upper cover flanging and the second upper cover and kills the region between limit.
Preferably, described securing member coordinates with nut strip through after described upper cover flanging, sealing strip and lower box flanging successively.
Further, in the time that the bottom of bending under described the second upper cover contacts with described lower box in-flanges, the compress variation of described sealing strip be sealing strip thickness 1/2nd to 2/3rds between.
From above technical scheme, the present invention is installed on sealing strip in the confined space of bending flange formation of battery case upper cover and battery case lower box, can stop sealing strip to extend the decrement that ensures sealing strip to both sides; By controlling the bottom of bending under the second upper cover to the distance of lower box in-flanges, realize the adjustment of sealing strip decrement; By the bending turnup structure of battery case upper cover and battery case lower box, improve the overall construction intensity of battery case, ensure compression seal effect; After compressing by securing member, can realize the positiver sealing of battery case.
Brief description of the drawings
Fig. 1 is the structural representation of battery case of the present invention;
Fig. 2 is the structural representation of battery case upper cover in the present invention;
Fig. 3 is the structural representation of battery case lower box in the present invention;
Fig. 4 is the partial sectional view of battery case of the present invention sealing place;
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, 13, bending under the second upper cover, 20, battery case lower box, 21, lower box in-flanges, 22, bending on lower box, 23, lower box top kills limit, 24, lower box flanging, 30, securing member, 31, nut strip, 40, sealing strip.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of preferred embodiment of the present invention is described in detail.
As shown in Figure 1,2 and 3, described battery case comprises 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 the 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 adopt flange bending structure, wherein the edge of battery case upper cover 10 adopts the ledge structure of an outward flanging of twice downward bending, forms bending 13 under bending 11 under the first upper cover connecting successively, upper cover flanging 12 and the second upper cover. The edge of described battery case lower box 20 adopts entirety to the backward upper bending of in-flanges, kill outward flanging behind limit downwards again, forms bending 22 on the lower box in-flanges 21 that connects successively, lower box, lower box top kills limit 23 and lower box flanging 24.
Described securing member 30 is successively through coordinating with nut strip 31 after described upper cover flanging 12, sealing strip 40 and lower box flanging 24, spacing to sealing strip between compression by securing member when installation and battery case upper cover and battery case lower box, seals the contact-making surface of battery case upper cover and battery case lower box. Described sealing strip 40 is arranged on bending 13 and lower box top under the top of bottom, lower box in-flanges 21 of described upper cover flanging 12 and the second upper cover and kills the region between limit 23, sealing strip is arranged in confined space, can effectively stop sealing strip to extend to both sides, ensure the decrement of sealing strip.
After battery case has assembled, between described upper cover flanging 12 and lower box flanging 24, there is difference in height, this difference in height is just in time that sealing strip reaches the height after optimal seal compress variation, at this moment under the second upper cover, the bottom of bending 13 just in time contacts with lower box in-flanges 21, can avoid sealing strip compression excessive or compress the seal failure causing not in place. In the present embodiment, the compress variation of sealing strip 40 be sealing strip thickness 1/2nd to 2/3rds between.
Adopt the degree of protection of battery case of the present invention can reach IP67, can meet the seal request of battery case; Only need adopt integral sealing bar just can realize the complete seal of battery case for the larger battery case of casing; The present invention's sealing property after being dismounted for multiple times still can be guaranteed, and has longer service life, is providing safeguard of after-sale service.
The above embodiment is only that the preferred embodiment of the present invention is described; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skill in the art make technical scheme of the present invention, all should fall in the definite protection domain of claims of the present invention.
Claims (4)
1. one kind has the battery case of waterproof construction, comprise the battery case upper cover (10) and the battery case lower box (20) that connect by securing member (30), between this battery case upper cover and battery case lower box, be provided with sealing strip (40), it is characterized in that, the edge of described battery case upper cover (10) has the ledge structure of an outward flanging of twice downward bending, form bending (11) under the first upper cover connecting successively, bending (13) under upper cover flanging (12) and the second upper cover, the edge of described battery case lower box (20) adopts entirety to the backward upper bending of in-flanges, kill again outward flanging behind limit downwards, form the lower box in-flanges (21) connecting successively, bending on lower box (22), lower box top kills limit (23) and lower box flanging (24).
2. the battery case with waterproof construction according to claim 1, it is characterized in that, described sealing strip (40) is arranged on bending (13) and lower box top under the top of bottom, lower box in-flanges (21) of described upper cover flanging (12) and the second upper cover and kills the region between limit (23).
3. the battery case with waterproof construction according to claim 1, it is characterized in that, described securing member (30) is successively through coordinating with nut strip (31) after described upper cover flanging (12), sealing strip (40) and lower box flanging (21).
4. the battery case with waterproof construction according to claim 1, it is characterized in that, in the time that the bottom of bending (13) under described the second upper cover contacts with described lower box in-flanges (21), the compress variation of described sealing strip (40) be sealing strip thickness 1/2nd to 2/3rds between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117315.3A CN105609680B (en) | 2016-03-02 | 2016-03-02 | Battery case with waterproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117315.3A CN105609680B (en) | 2016-03-02 | 2016-03-02 | Battery case with waterproof construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105609680A true CN105609680A (en) | 2016-05-25 |
| CN105609680B CN105609680B (en) | 2018-06-05 |
Family
ID=55989425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610117315.3A Active CN105609680B (en) | 2016-03-02 | 2016-03-02 | Battery case with waterproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105609680B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108601272A (en) * | 2018-07-12 | 2018-09-28 | 无锡新奇生电器有限公司 | A kind of sealing electronic box of the anti-internal contamination of high temperature resistance moisture resistant |
| CN109256501A (en) * | 2017-07-12 | 2019-01-22 | 许继电气股份有限公司 | A kind of cabinet and the battery case using the cabinet |
| CN110762208A (en) * | 2019-11-18 | 2020-02-07 | 深圳古瑞瓦特新能源股份有限公司 | Box and sealing connection structure thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN218569599U (en) * | 2022-09-14 | 2023-03-03 | 华为数字能源技术有限公司 | Electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0745260A (en) * | 1993-07-28 | 1995-02-14 | Matsushita Electric Ind Co Ltd | Manganese dry battery |
| CN2891597Y (en) * | 2006-02-23 | 2007-04-18 | 华为技术有限公司 | Casing |
| CN204992312U (en) * | 2015-09-08 | 2016-01-20 | 厦门马恒达汽车零部件有限公司 | High -voltage power distribution cabinet |
| CN205452396U (en) * | 2016-03-02 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Battery box with waterproof construction |
-
2016
- 2016-03-02 CN CN201610117315.3A patent/CN105609680B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0745260A (en) * | 1993-07-28 | 1995-02-14 | Matsushita Electric Ind Co Ltd | Manganese dry battery |
| CN2891597Y (en) * | 2006-02-23 | 2007-04-18 | 华为技术有限公司 | Casing |
| CN204992312U (en) * | 2015-09-08 | 2016-01-20 | 厦门马恒达汽车零部件有限公司 | High -voltage power distribution cabinet |
| CN205452396U (en) * | 2016-03-02 | 2016-08-10 | 合肥国轩高科动力能源有限公司 | Battery box with waterproof construction |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256501A (en) * | 2017-07-12 | 2019-01-22 | 许继电气股份有限公司 | A kind of cabinet and the battery case using the cabinet |
| 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 |
| CN108601272A (en) * | 2018-07-12 | 2018-09-28 | 无锡新奇生电器有限公司 | A kind of sealing electronic box of the anti-internal contamination of high temperature resistance moisture resistant |
| CN110762208A (en) * | 2019-11-18 | 2020-02-07 | 深圳古瑞瓦特新能源股份有限公司 | Box and sealing connection structure thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105609680B (en) | 2018-06-05 |
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