CN207183323U - Battery case - Google Patents
Battery case Download PDFInfo
- Publication number
- CN207183323U CN207183323U CN201720938599.2U CN201720938599U CN207183323U CN 207183323 U CN207183323 U CN 207183323U CN 201720938599 U CN201720938599 U CN 201720938599U CN 207183323 U CN207183323 U CN 207183323U
- Authority
- CN
- China
- Prior art keywords
- burst disk
- battery case
- explosionproof hole
- housing
- cover plate
- 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
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a kind of battery case, including housing, cover plate and the first burst disk, the cover plate is arranged on the upper end open of the housing, and the accommodation space of sealing is formed between the housing and the cover plate, the housing includes the bottom plate being oppositely arranged with the cover plate, the first explosionproof hole is provided with the bottom plate, first burst disk is formed in first explosionproof hole and closing first explosionproof hole.Battery case of the present utility model, by setting the first explosionproof hole in the bottom of housing, the first burst disk forms in the first explosionproof hole and closes the first explosionproof hole.So, when cell internal pressure increases to certain value, gas can wash the first burst disk discharge of housing bottom open, so as to avoid the generation of blast.In addition, burst disk is arranged on the Housing Base of battery case, avoids the electrolyte that pops of burst disk when only burst disk is arranged at the top of upper cover plate and up spray, so as to reduce the influence to other batteries and equipment.
Description
Technical field
The utility model belongs to the technical field of battery, more particularly to a kind of battery case.
Background technology
With the proposition of environmentally friendly concept, major impetus source of the electrokinetic cell as new-energy automobile, have become electronic
The critical component of automobile.
The a large amount of of electrokinetic cell are used so that its security performance has been to be concerned by more and more people.When exception occurs in battery
When, substantial amounts of gas can be produced in inside battery, causes the internal pressure of battery increased dramatically.Now, if caused a large amount of gases
It can not discharge in time, battery will explode, and cause security incident.In order to avoid the generation of blast, the safety of battery is improved
Performance on battery cover board, it is necessary to set explosion-protection equipment.Explosion-protection equipment of the prior art is usually in the top of battery cover board
Burst disk is set, and when cell internal pressure increases to certain value, gas can wash burst disk discharge open, reduce inside battery pressure
Power, so as to avoid the generation of blast.But the top that burst disk is arranged on to battery cover board can cause burst disk to be electrolysed after popping
Liquid is up sprayed, and other batteries and equipment are impacted, or even can destroy other batteries and equipment.
Utility model content
Technical problem to be solved in the utility model is for burst disk is arranged on battery cover board in the prior art
Side cause burst disk pop after electrolyte up spray, the technological deficiency that other batteries and equipment are had an impact, there is provided a kind of
Battery case.
Technical scheme is used by the utility model solves above-mentioned technical problem：
A kind of battery case is provided, including housing, cover plate and the first burst disk, the cover plate are arranged on the upper of the housing
End opening, and the accommodation space of sealing is formed between the housing and the cover plate, the housing includes relative with the cover plate
The bottom plate of setting, is provided with the first explosionproof hole on the bottom plate, first burst disk formed in first explosionproof hole and
Close first explosionproof hole.
Alternatively, first explosionproof hole includes large-diameter portion, central diameter portion and minor diameter part, the central diameter portion and the minor diameter part
Between First terrace formed below, second step face is formed between the large-diameter portion and the central diameter portion, described first is anti-
Quick-fried is tightly connected with the First terrace to close first explosionproof hole, and the lower surface of first burst disk and institute
The upper surface for stating second step face is concordant.
Alternatively, first burst disk is welded on the First terrace.
Alternatively, the annular groove that Open Side Down is provided with first burst disk, the annular groove is located at described first
In explosionproof hole.
Alternatively, first burst disk is integrally formed with the bottom plate.
Alternatively, the second explosionproof hole and the second burst disk are provided with the cover plate, second burst disk is formed in institute
State in the second explosionproof hole and closing second explosionproof hole, the explosion-proof pressure of second burst disk are more than first burst disk
Explosion-proof pressure.
Alternatively, the outside of the bottom plate be located at first burst disk lower position be provided with the first burst disk protection
Film.
Alternatively, the second burst disk diaphragm, the first burst disk protection are provided with above second burst disk
Film and the second burst disk diaphragm are PET film.
Battery case provided by the utility model, including housing, cover plate and the first burst disk, cover plate are arranged on the upper of housing
The accommodation space of sealing is formed between end opening and housing and cover plate, by the bottom of housing set the first explosionproof hole, first
Burst disk forms in the first explosionproof hole and closes the first explosionproof hole.So, by setting the first explosionproof hole in the bottom of housing,
When cell internal pressure increases to certain value, gas can wash the first burst disk discharge of housing bottom open, reduce battery
Internal pressure, so as to avoid the generation of blast.In addition, burst disk is arranged on the Housing Base of battery case, avoid by
The burst disk electrolyte that pops up sprays when burst disk is arranged at the top of upper cover plate, so as to reduce electrolyte to other batteries and
The influence of equipment.
Brief description of the drawings
Fig. 1 is the schematic perspective view for the battery case that the embodiment of the utility model one provides；
Fig. 2 is the schematic diagram for the battery case that the embodiment of the utility model one provides；
Fig. 3 is the schematic cross-section of its housing of the battery case of the embodiment of the utility model one offer；
Fig. 4 is the enlarged drawing at a in Fig. 3.
Reference in specification is as follows：
1st, housing；11st, the first explosionproof hole；12nd, First terrace；13rd, second step face；
2nd, cover plate；21st, the second burst disk diaphragm；
3rd, the first burst disk；31st, annular groove；32nd, the first burst disk diaphragm.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
With reference to drawings and Examples, the utility model is described in further detail.It is it should be appreciated that described herein specific real
Example is applied only to explain the utility model, is not used to limit the utility model.
The embodiment of the utility model one provides a kind of battery case, as shown in Figures 1 to 4, including housing 1, cover plate 2 and
First burst disk 3, the cover plate 2 are arranged on the upper end open of the housing 1, and are formed between the housing 1 and the cover plate 2
The accommodation space of sealing, the housing 1 include the bottom plate being oppositely arranged with the cover plate 2, and it is anti-to be provided with first on the bottom plate
Blast hole 11, first burst disk 3 is formed in first explosionproof hole 11 and closing first explosionproof hole 11.
The electrolyte of inside battery is up sprayed so as to be produced to other batteries and equipment after being popped in order to avoid burst disk
Influence, the first burst disk 3 is arranged on housing 1.But because battery winding is placed on by being formed between housing 1 and cover plate 2
Sealing accommodation space in, when cell internal pressure is excessive, internal temperature of battery can also increase, the battery meeting of winding
Lateral expansion is so as to cause housing 1 to be expanded to both sides, if the first burst disk 3 to be arranged on to the side of housing 1, then
First burst disk 3 can be plugged due to the expansion of housing 1, so as to cause the first burst disk 3 to fail.
As shown in Figure 2 to Figure 3, first explosionproof hole 11 includes large-diameter portion, central diameter portion and minor diameter part, the central diameter portion with
First terrace 12 formed below between the minor diameter part, second step face is formed between the large-diameter portion and the central diameter portion
13, first burst disk 3 is tightly connected to close first explosionproof hole 11, and described first with the First terrace 12
The lower surface of burst disk 3 is concordant with the upper surface in the second step face 13.So, the lower section of the first burst disk 3 is anti-compared with first
Quick-fried 3 bigger spaces, so as to be advantageous to popping for the first burst disk 3.In the present embodiment, first burst disk 3 is welded on
On the First terrace 12.The installation for being arranged to the first burst disk 3 of the First terrace 12 provides pad, so as to
Be advantageous to the first burst disk 3 being arranged in first explosionproof hole 11.
However, in other embodiments, first burst disk 3 can also be formed directly into first explosionproof hole 11
It is interior or, first burst disk 3 is integrally formed with the bottom plate.
As shown in figure 3, being provided with the annular groove 31 that Open Side Down in first burst disk 3, the annular groove 31 is located at
In first explosionproof hole 11.Weak ring of the position of annular groove 31 equivalent to the first burst disk 3 in such first burst disk 3
Section, when cell pressure reaches certain degree, is advantageous to the explosion of the first burst disk 3, and it is explosion-proof that annular groove 31 is in into first
In the range of hole 11, be advantageous to the outflow of electrolyte after the first burst disk 3 pops.
In the present embodiment, the second explosionproof hole (not shown) and the second burst disk are provided with the cover plate 2 (in figure not
Show), second burst disk is formed in second explosionproof hole and closing second explosionproof hole, second burst disk
Explosion-proof pressure be more than first burst disk 3 explosion-proof pressure.Such burst disk of first burst disk 3 and second can be with dual guarantor
Demonstrate,prove the security of battery.Because the explosion-proof pressure of second burst disk is more than the explosion-proof pressure of first burst disk 3, work as electricity
During the internal pressure increase of pond, gas is preferentially discharged from the bottom of housing 1, if the first burst disk 3 of bottom fails, gas just can be from shell
Discharge at the top of body 1.
In the present embodiment, first burst disk 3 is aluminum burst disk.
However, in other embodiments, as long as the material and model of the burst disk of first burst disk 3 and second meet it
The requirement of explosion-proof pressure.
In the present embodiment, in order to protect the first burst disk 3 and the second burst disk from the influence of external environment, at the bottom
The lower section that the outside of plate is located at first burst disk 3 is provided with the first burst disk diaphragm 32, second burst disk it is upper
Side is provided with the second burst disk diaphragm 21.Wherein the first burst disk diaphragm 32 is with the second burst disk diaphragm 21
PET film.
The battery case that the present embodiment provides mainly is applied in lithium battery, and certainly, it is electric with lithium is not limited to
Pond, it can also be in other various batteries, such as lead-acid battery, alkaline Mn cell.
The battery case that above-described embodiment provides, including housing, cover plate and the first burst disk, the cover plate are arranged on described
The upper end open of housing, and the accommodation space of sealing is formed between the housing and the cover plate, the housing include with it is described
The bottom plate that cover plate is oppositely arranged, the first explosionproof hole is provided with the bottom plate, and first burst disk forms anti-described first
Blast hole is interior and closes first explosionproof hole.By setting the first explosionproof hole in the bottom of housing, the first burst disk is formed the
One explosionproof hole is interior and closes the first explosionproof hole.So, by setting the first explosionproof hole in the bottom of housing, cell internal pressure is worked as
When increasing to certain value, gas can wash the first burst disk discharge of housing bottom open, the internal pressure of battery be reduced, so as to keep away
Exempt from the generation of blast.In addition, burst disk is arranged on the Housing Base of battery case, avoids and be arranged on burst disk
The burst disk electrolyte that pops up sprays when at the top of cover plate, so as to reduce influence of the electrolyte to other batteries and equipment.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (8)
1. a kind of battery case, it is characterised in that including housing, cover plate and the first burst disk, the cover plate is arranged on the shell
The upper end open of body, and the accommodation space of sealing is formed between the housing and the cover plate, the housing includes and the lid
The bottom plate that plate is oppositely arranged, the first explosionproof hole is provided with the bottom plate, and first burst disk forms explosion-proof described first
In hole and closing first explosionproof hole.
2. battery case as claimed in claim 1, it is characterised in that first explosionproof hole include large-diameter portion, central diameter portion and
Minor diameter part, the First terrace formed below between the central diameter portion and the minor diameter part, the large-diameter portion and the central diameter portion
Between form second step face, first burst disk and First terrace sealed connection are explosion-proof to close described first
Hole, and the lower surface of first burst disk is concordant with the upper surface in the second step face.
3. battery case as claimed in claim 2, it is characterised in that first burst disk is welded on the First terrace
On.
4. battery case as claimed in claim 2, it is characterised in that be provided with the annular that Open Side Down in first burst disk
Groove, the annular groove are located in first explosionproof hole.
5. battery case as claimed in claim 1, it is characterised in that first burst disk is integrally formed with the bottom plate.
6. battery case as claimed in claim 1, it is characterised in that the second explosionproof hole and second anti-is provided with the cover plate
Quick-fried, second burst disk is formed in second explosionproof hole and closing second explosionproof hole, second burst disk
Explosion-proof pressure be more than first burst disk explosion-proof pressure.
7. battery case as claimed in claim 6, it is characterised in that the outside of the bottom plate is located at first burst disk
Lower position is provided with the first burst disk diaphragm.
8. battery case as claimed in claim 7, it is characterised in that it is explosion-proof to be provided with second above second burst disk
Piece diaphragm, the first burst disk diaphragm and the second burst disk diaphragm are PET film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938599.2U CN207183323U (en) | 2017-07-28 | 2017-07-28 | Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720938599.2U CN207183323U (en) | 2017-07-28 | 2017-07-28 | Battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207183323U true CN207183323U (en) | 2018-04-03 |
Family
ID=61743920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720938599.2U Expired - Fee Related CN207183323U (en) | 2017-07-28 | 2017-07-28 | Battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207183323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223596A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市科达利实业股份有限公司 | Power battery shell and power battery |
-
2017
- 2017-07-28 CN CN201720938599.2U patent/CN207183323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021223596A1 (en) * | 2020-05-07 | 2021-11-11 | 深圳市科达利实业股份有限公司 | Power battery shell and power battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200820 Address after: Room 202, Yuanshuo Science Park, No.8, South Lane, xinshiqiao street, Guihua community, Guanlan street, Longhua District, Shenzhen, Guangdong Province Patentee after: Shenzhen xindimeng Technology Co., Ltd Address before: 518000 Guangdong Province, Shenzhen New District of Longhua City, Dalang street, No. 289 Hua Tong Sheng community Fanlu Yu Jian Feng Industrial Zone Building G building 1-5 layer Patentee before: SHENZHEN CITY XIN DIMING NEW ENERGY POLYTRON TECHNOLOGIES Inc. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210226 Address after: 523000 rooms 101 and 201, building 4, No.2 mashanmiao Road, baihuadong, Dalingshan Town, Dongguan City, Guangdong Province Patentee after: Ruisheng new energy technology (Guangdong) Co.,Ltd. Address before: Room 202, Yuanshuo science and Technology Park, No.8, South Lane, xinshiqiao street, Guihua community, Guanlan street, Longhua District, Shenzhen, Guangdong 518000 Patentee before: Shenzhen xindimeng Technology Co., Ltd |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20200728 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |