CN201975428U - Metal shell of battery - Google Patents
Metal shell of battery Download PDFInfo
- Publication number
- CN201975428U CN201975428U CN201120084571XU CN201120084571U CN201975428U CN 201975428 U CN201975428 U CN 201975428U CN 201120084571X U CN201120084571X U CN 201120084571XU CN 201120084571 U CN201120084571 U CN 201120084571U CN 201975428 U CN201975428 U CN 201975428U
- Authority
- CN
- China
- Prior art keywords
- wall
- battery
- diapire
- thickness
- explosion
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims abstract description 25
- 238000004880 explosion Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000011218 segmentation Effects 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 discloses a metal shell of a battery, which comprises a bottom wall and a side wall positioned on the upper end of the bottom wall, wherein the bottom wall and the side wall form a battery cavity, the side wall consists of a thin wall part connected with the bottom wall and an anti-explosion wall part at the upper end of the thin wall part, and the wall thickness of the anti-explosion wall part is larger than that of the thin wall part. The metal shell of the battery has the thinner side wall, and simultaneously, has a better anti-explosion property.
Description
Technical field
The utility model relates to a kind of metal shell of battery.
Background technology
In the prior art, the metal shell of battery constitutes sidewall thickness uniformity from top to bottom by diapire and the sidewall that is positioned at the diapire upper end.Usually, the metal shell of this battery all is to be washed into disk by the metal material base earlier, and repeatedly extending through mould processes again.The number of times of processing of extending is many more, and the sidewall of the metal shell of battery is just thin more, can make battery have bigger capacity, more saves material simultaneously, saves cost.
Yet it is too thin that the sidewall of the metal shell of the battery of prior art can not be processed, because can influence the explosion-proof performance of battery container like this, can bring more potential safety hazards.
The utility model content
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of metal shell of battery is provided, and the metal shell of this battery has thinner sidewall simultaneously, has better explosion-proof performance, and is safer.
The purpose of this utility model realizes by following scheme: a kind of metal shell of battery, comprise diapire and the sidewall that is positioned at the diapire upper end, described diapire and described sidewall constitute battery cavities, described sidewall is made of the explosion-proof wall portion of the thinner wall section that is connected with described diapire and thinner wall section upper end, and the wall thickness of described explosion-proof wall portion is greater than the wall thickness of described thinner wall section.
The big 0.02-0.05mm of wall thickness of the described thinner wall section of wall ratio of described explosion-proof wall portion.
The thickness of described diapire is 0.3mm, and the wall thickness of described thinner wall section is 0.18mm, and the wall thickness of described explosion-proof wall portion is 0.2mm.
The thickness of described diapire is 0.5mm, and the wall thickness of described thinner wall section is 0.25mm, and the wall thickness of described explosion-proof wall portion is 0.28mm.
The thickness of described diapire is 0.3mm, and the wall thickness of described thinner wall section is 0.15mm, and the wall thickness of described explosion-proof wall portion is 0.17mm.
Advantage of the present utility model is: the wall thickness of the explosion-proof wall portion of the metal shell of battery of the present utility model is greater than the wall thickness of thinner wall section, this makes the utility model littler at the wall thickness of thinner wall section, have bigger battery capacity, more cost-effective while, have better explosion-proof performance, safer.
Description of drawings
Fig. 1 is the cross-sectional view of the metal shell of battery of the present utility model.
In Fig. 1: 1. diapire; 2. the thinner wall section of sidewall; 3. the explosion-proof wall portion of sidewall.
Embodiment
Below the utility model is described further.
As shown in Figure 1, a kind of metal shell of battery comprises diapire 1 and the sidewall that is positioned at diapire 1 upper end, and diapire 1 constitutes battery cavities with sidewall, sidewall is made of the explosion-proof wall portion 3 of thinner wall section 2 that is connected with diapire 1 and thinner wall section 2 upper ends, and the wall thickness of explosion-proof wall portion 3 is greater than the wall thickness of thinner wall section 2.
As a kind of execution mode preferably of the present utility model, the big 0.02-0.05mm of wall thickness of the wall ratio thinner wall section 2 of explosion-proof wall portion 3.
Embodiment 1
A kind of metal shell of battery, comprise diapire 1 and the sidewall that is positioned at diapire 1 upper end, diapire 1 constitutes battery cavities with sidewall, sidewall is made of the explosion-proof wall portion 3 of thinner wall section 2 that is connected with diapire 1 and thinner wall section 2 upper ends, wherein, the thickness of diapire 1 is 0.3mm, and the wall thickness of thinner wall section 2 is 0.18mm, and the wall thickness of explosion-proof wall portion 3 is 0.2mm.
Embodiment 2
A kind of metal shell of battery, comprise diapire 1 and the sidewall that is positioned at diapire 1 upper end, diapire 1 constitutes battery cavities with sidewall, sidewall is made of the explosion-proof wall portion 3 of thinner wall section 2 that is connected with diapire 1 and thinner wall section 2 upper ends, wherein, the thickness of diapire 1 is 0.5mm, and the wall thickness of thinner wall section 2 is 0.25mm, and the wall thickness of explosion-proof wall portion 3 is 0.28mm.
Embodiment 3
A kind of metal shell of battery, comprise diapire 1 and the sidewall that is positioned at diapire 1 upper end, diapire 1 constitutes battery cavities with sidewall, sidewall is made of the explosion-proof wall portion 3 of thinner wall section 2 that is connected with diapire 1 and thinner wall section 2 upper ends, wherein, the thickness of diapire 1 is 0.3mm, and the wall thickness of thinner wall section 2 is 0.15mm, and the wall thickness of explosion-proof wall portion 3 is 0.17mm.
The metal shell of battery of the present utility model is prepared by following steps:
A, metallic plate is washed into circular material base;
B, circular material base is placed Stretching die, be drawn into tubular blank with sidewall and a diapire 1;
C, the tubular blank is carried out attenuation more than the 5 times processing of extending, form the uniform cylindrical thin wall blank of sidewall thickness;
D, the cylindrical thin wall blank is become the wall processing of extending, the upper end of the sidewall of cylindrical thin wall blank is drawn into the bigger semi-finished articles of thickness;
E, the burr of semi-finished articles opening part are trimmed, be prepared into the battery container that satisfies requirement for height.
In above-mentioned C step, the attenuation more than 5 times is extended and is processed as the segmentation stretch process of the tubular blank being carried out by drawing die.
The general requirement of raw material of the present utility model has plasticity preferably, low yield tensile ratio, big thickness of slab directivity factor and little board plane directivity.
In the production process of the metal shell of battery of the present utility model, after carrying out extending more than 5 times, carried out the processing of extending of change wall, the thickness of the upper end of the sidewall of the housing of producing like this is bigger, make housing through the processing of extending more frequently, when can have thinner sidewall, has better explosion-proof performance.
Should be noted that at last; above content is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; the simple modification that those of ordinary skill in the art carries out the technical solution of the utility model or be equal to replacement does not all break away from the essence and the scope of technical solutions of the utility model.
Claims (5)
1. the metal shell of a battery, comprise diapire (1) and be positioned at the sidewall of diapire (1) upper end, described diapire (1) constitutes battery cavities with described sidewall, it is characterized in that: described sidewall is made of the explosion-proof wall portion (3) of thinner wall section (2) that is connected with described diapire (1) and thinner wall section (2) upper end, and the wall thickness of described explosion-proof wall portion (3) is greater than the wall thickness of described thinner wall section (2).
2. according to the metal shell of the described battery of claim 1, it is characterized in that: the big 0.02-0.05mm of wall thickness of the described thinner wall section of wall ratio (2) of described explosion-proof wall portion (3).
3. according to the metal shell of the described battery of claim 2, it is characterized in that: the thickness of described diapire (1) is 0.3mm, and the wall thickness of described thinner wall section (2) is 0.18mm, and the wall thickness of described explosion-proof wall portion (3) is 0.2mm.
4. according to the metal shell of the described battery of claim 2, it is characterized in that: the thickness of described diapire (1) is 0.5mm, and the wall thickness of described thinner wall section (2) is 0.25mm, and the wall thickness of described explosion-proof wall portion (3) is 0.28mm.
5. according to the metal shell of the described battery of claim 2, it is characterized in that: the thickness of described diapire (1) is 0.3mm, and the wall thickness of described thinner wall section (2) is 0.15mm, and the wall thickness of described explosion-proof wall portion (3) is 0.17mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120084571XU CN201975428U (en) | 2011-03-28 | 2011-03-28 | Metal shell of battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120084571XU CN201975428U (en) | 2011-03-28 | 2011-03-28 | Metal shell of battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975428U true CN201975428U (en) | 2011-09-14 |
Family
ID=44580526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120084571XU Expired - Lifetime CN201975428U (en) | 2011-03-28 | 2011-03-28 | Metal shell of battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169971A (en) * | 2011-03-28 | 2011-08-31 | 慈晟 | Metal shell of battery and preparation method thereof |
-
2011
- 2011-03-28 CN CN201120084571XU patent/CN201975428U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169971A (en) * | 2011-03-28 | 2011-08-31 | 慈晟 | Metal shell of battery and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SILVER SHENZHEN NONFERROUS METALS CO., LTD. JIUJIU Free format text: FORMER OWNER: CI SHENG Effective date: 20140523 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 516006 HUIZHOU, GUANGDONG PROVINCE TO: 518172 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140523 Address after: 518172, No. 1, building two, 1613, dragon garden, Longcheng street, Longgang center, Longgang District, Shenzhen, Guangdong Patentee after: Shenzhen 99 silver colored Pioneer Metals Corporation Address before: 516006, Huicheng District, Guangdong, Huizhou Hui Hui Road, No. 22 (Huizhou HOLLEY Energy Materials Co., Ltd.) Patentee before: Ci Cheng |
|
| DD01 | Delivery of document by public notice |
Addressee: Gu Zhenhui Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Gu Zhenhui Document name: Notification that Application Deemed not to be Proposed |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |