CN206878069U - Battery case - Google Patents
Battery case Download PDFInfo
- Publication number
- CN206878069U CN206878069U CN201720757472.0U CN201720757472U CN206878069U CN 206878069 U CN206878069 U CN 206878069U CN 201720757472 U CN201720757472 U CN 201720757472U CN 206878069 U CN206878069 U CN 206878069U
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- CN
- China
- Prior art keywords
- hole
- installation
- sealing ring
- lug boss
- positive stop
- 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.)
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Classifications
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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
Abstract
The application is related to technical field of energy storage, more particularly to a kind of battery case.It includes upper cover body, lower box, sealing ring, positive stop lug boss and fastener, sealing ring is between the primary sealing area of upper cover body and the secondary sealing area of lower box, wherein, sealing ring offers limiting through hole, first installation through-hole of upper cover body and the second installation through-hole of lower box are oppositely arranged on the thickness direction of sealing ring, one end of fastener passes through the first installation through-hole and the second installation through-hole so that upper cover body is arranged on lower box, the height of positive stop lug boss is less than the original depth of sealing ring before compression, positive stop lug boss is integrally formed with one of upper cover body and lower box, and one end of positive stop lug boss can pass through limiting through hole and be abutted with primary sealing area or secondary sealing area.So design can also alleviate positive stop lug boss and be easily pressurized in upper cover body and lower box installation process situation about dropping, avoid battery case seal failure while realizing spacing to sealing ring.
Description
Technical field
The application is related to technical field of energy storage, more particularly to a kind of battery case.
Background technology
At present, the electrokinetic cell used in new-energy automobile is mainly lithium-ion-power cell, lithium ion power is electric
Pond is placed in battery case rear, it is necessary to be sealed to battery case.The sealing means now used is in upper cover body and lower boxes
Sealing ring is laid in junction, and the sealing function of battery case junction is realized by compresses seal.But this mode easily goes out
The problem of existing sealing ring overcompression, easily sealing ring is caused to be failed during long-term use, so as to easily cause battery
Case seal failure, the problems such as causing lithium-ion-power cell blast on fire.
Utility model content
This application provides a kind of battery case, while realizing spacing to sealing ring, can also alleviate positive stop lug boss upper
Lid and the situation about dropping that is easily pressurized in lower box installation process, avoid battery case seal failure.
This application provides a kind of battery case, and it includes：Upper cover body, lower box, sealing ring, positive stop lug boss and fastener,
The upper cover body has primary sealing area and the first installation through-hole, and the lower box has secondary sealing area and second
Installation through-hole,
The primary sealing area and the secondary sealing area are oppositely arranged on the thickness direction of the sealing ring, and described
For sealing ring between the primary sealing area and the secondary sealing area, the sealing ring offers limiting through hole,
First installation through-hole and second installation through-hole are oppositely arranged on the thickness direction of the sealing ring, institute
The one end for stating fastener passes through first installation through-hole and second installation through-hole, the upper cover body is arranged on described
On lower box,
The height of the positive stop lug boss is less than the original depth of the sealing ring before compression, and the height is described close
Size on the thickness direction of seal, the positive stop lug boss are integrally formed with one of the upper cover body and the lower box,
And one end of the positive stop lug boss can pass through the limiting through hole and be supported with the primary sealing area or the secondary sealing area
Connect.
Preferably, the positive stop lug boss is integrally formed with the upper cover body, and one end of the positive stop lug boss passes through the limit
Position through hole simultaneously abuts with the secondary sealing area.
Preferably, on the thickness direction of the sealing ring, the positive stop lug boss is relative with first installation through-hole, institute
State positive stop lug boss and offer the via connected with first installation through-hole, the via can be worn for one end of the fastener
Cross.
Preferably, in the projection obtained along the thickness direction of the sealing ring, the perspective plane of first installation through-hole with
The perspective plane of the via is completely superposed.
Preferably, in the projection obtained along the thickness direction of the sealing ring, the perspective plane of second installation through-hole with
The perspective plane of the via is completely superposed.
Preferably, first installation through-hole offers multiple, between two neighboring first installation through-hole formed with
The positive stop lug boss.
Preferably, the positive stop lug boss has joint face, bearing surface and connects the outer of the joint face and the bearing surface
Wall, the joint face are connected with one of the primary sealing area and the secondary sealing area, and the bearing surface can be with
The other of the primary sealing area and the secondary sealing area abut, and the inwall of the outside wall surface and the limiting through hole
Face is bonded.
Preferably, the upper cover body has stitching surface, the stitching surface and the primary sealing area along the sealing ring
Thickness direction is oppositely arranged,
The battery case also includes pressing plate, and the pressing plate offers pilot hole, and the pilot hole and the described first installation are logical
Hole is oppositely arranged and connected on the thickness direction of the sealing ring, by one end of the fastener through the pilot hole and
First installation through-hole, the pressing plate is pressed together on the stitching surface.
Preferably, the lower box has locking face, the locking face and the secondary sealing area along the sealing ring
Thickness direction is oppositely arranged,
The battery case also includes tight lock part, and the tight lock part offers the screw thread connected with second installation through-hole
Hole,
One end of the fastener sequentially pass through first installation through-hole and second installation through-hole and with the spiral shell
Pit screw thread coordinates, the tight lock part and the locking face against.
Preferably, the tight lock part and the nowel body by integral forming.
The technical scheme that the application provides can reach following beneficial effect：
Battery case provided herein, in upper cover body and lower box assembling process, the height of positive stop lug boss can be passed through
The decrement of sealing ring is controlled, to alleviate the situation of sealing ring overcompression, i.e.,：Alleviate sealing ring during long-term use to occur
The situation of failure, so as to reduce the probability of battery case seal failure, improve the safety in utilization of battery case.In addition, in the application
Positive stop lug boss and upper cover body or nowel body by integral forming, can so alleviate positive stop lug boss and be installed in upper cover body and lower box
Easily be pressurized situation about dropping in journey, avoids battery case seal failure.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Application.
Brief description of the drawings
The assembling structure schematic diagram for the battery case that Fig. 1 is provided by the embodiment of the present application；
The decomposition texture schematic diagram for the battery case that Fig. 2 is provided by the embodiment of the present application；
The cross section structure diagram for the battery case that Fig. 3 is provided by the embodiment of the present application；
Fig. 4 is the A portions mplifying structure schematic diagram shown in Fig. 3；
Fig. 5 is the part-structure schematic diagram of the battery case shown in Fig. 4.
Reference：
10- upper cover bodies；
The installation through-holes of 100- first；
11- lower boxes；
The installation through-holes of 110- second；
12- sealing rings；
120- limiting through hole；
13- positive stop lug boss；
130- vias；
14- fasteners；
15- pressing plates；
150- pilot holes；
16- tight lock parts；
160- screwed holes.
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to accompanying drawing.
As shown in Figures 1 to 5, the embodiment of the present application provides a kind of battery case, it include upper cover body 10, lower box 11,
Sealing ring 12, positive stop lug boss 13 and fastener 14, the battery that the battery case may also include in lower box 11 (do not show in figure
Go out).Wherein, this upper cover body 10 can be fixed on lower box 11 by fastener 14, and sealing ring 12 is located at upper cover body 10 with
Between casing 11, for sealing upper cover body 10 and lower box 11, to prevent that it is hot that the battery being arranged in lower box 11 from having occurred
Situations such as fried.In addition, positive stop lug boss 13 can coordinate with upper cover body 10 and lower box 11, to control the decrement of sealing ring 12, keep away
Exempt from battery case seal failure.
Specifically, upper cover body 10 has primary sealing area and the first installation through-hole 100, and lower box 11 has secondary sealing area
With the second installation through-hole 110, the primary sealing area and secondary sealing area are oppositely arranged on the thickness direction of sealing ring 12, sealing
Circle 12 is between primary sealing area and secondary sealing area, and sealing ring 12 offers limiting through hole 120；Wherein, foregoing first
Installation through-hole 100 and foregoing second installation through-hole 110 are oppositely arranged on the thickness direction of sealing ring 12, one end of fastener 14
Through the first installation through-hole 100 and the second installation through-hole 110, upper cover body 10 is arranged on lower box 11.And positive stop lug boss
13 height is less than the original depth of sealing ring 12 before compression, and the height of the positive stop lug boss 13 is positive stop lug boss 13 in sealing ring
Size on 12 thickness direction, the positive stop lug boss 13 are integrally formed with one of upper cover body 10 and lower box 11, and spacing
One end of boss 13 can pass through limiting through hole 120 and be abutted with primary sealing area or secondary sealing area.
What deserves to be explained is the thickness direction of the sealing ring is the Z-direction or the opposite direction of Z-direction shown in Fig. 4.
In the present embodiment, the upper cover body 10 of battery case can pass through positive stop lug boss 13 with lower box 11 in installation process
Height control sealing ring 12 decrement.Specifically, when one end of fastener 14 is pacified through the first installation through-hole 100 and second
When filling through hole 110 so that upper cover body 10 is arranged on lower box 11, due to relative fortune occurring between upper cover body 10 and lower box 11
Dynamic, therefore, the sealing ring 12 between upper cover body 10 and lower box 11 can be compressed, on the sealing ring 12 after compression can ensure
Sealing reliability between lid 10 and lower box 11；And because the height of positive stop lug boss 13 is less than sealing ring 12 before compression
Original depth, after one end of positive stop lug boss 13 abuts through limiting through hole 120 with primary sealing area or secondary sealing area, the limit
Position boss 13 can limit continues that relative motion occurs between primary sealing area and secondary sealing area, so as to limit primary sealing area
Continue compresses seal 12 with secondary sealing area, to alleviate the situation of the overcompression of sealing ring 12, i.e.,：Alleviate sealing ring 12 long-term
Situation about being failed during use, so as to reduce the probability of battery case seal failure, improve the safety in utilization of battery case.
In addition, the positive stop lug boss 13 in the present embodiment is integrally formed with upper cover body 10 or lower box 11, can so alleviate
Positive stop lug boss 13 is easily pressurized situation about dropping in upper cover body 10 and the installation process of lower box 11, avoids battery case from sealing mistake
Effect.And because positive stop lug boss 13 and upper cover body 10 or lower box 11 are integrally formed, positive stop lug boss 13 and upper cover body 10 can be omitted
Or the installation steps of lower box 11, improve the installation effectiveness of battery case.
What deserves to be explained is the positive stop lug boss 13 can be formed as one with upper cover body 10 or lower box 11 by way of injection
Body formula structure, to reduce production cost and improve production efficiency.
Wherein, during assembled battery case, it usually needs first battery is arranged in lower box 11, then again will be upper
Lid 10, sealing ring 12 and lower box 11 are installed, to realize cell sealing in lower box 11.But transported by battery
During lower box 11, if positive stop lug boss 13 and lower box 11 are integrally formed, that is to say, that if the of lower box 11
Two sealing surfaces are protruding with positive stop lug boss 13, then the battery easily touches positive stop lug boss 13 in transportation, so as to hold
It is easily caused battery breakage.Therefore, in order to overcome this problem, in this application, it is preferable that by positive stop lug boss 13 and upper cover body 10
It is integrally formed, one end of the positive stop lug boss 13 abuts through limiting through hole 120 and with secondary sealing area.So design is compared to general
Positive stop lug boss 13 and 11 integrally formed scheme of lower box, during battery is installed to lower box 11, can reduce battery and break
The probability of damage.
In one embodiment of the application, on the thickness direction of sealing ring 12, above-mentioned positive stop lug boss 13 and first is pacified
It is relative to fill through hole 100, and the positive stop lug boss 13 offers the via 130 connected with the first installation through-hole 100, the energy of via 130
Enough passed through for one end of fastener 14.Wherein, the limiting through hole 120 due to sealing ring 12 and 13 spacing cooperation of positive stop lug boss, because
This, the installation through-hole 100 of limiting through hole 120 and first of the sealing ring 12 is relative, and the limiting through hole 120 also is available for fastener 14
Pass through, so design enables fastener 14 to sequentially pass through the first installation through-hole 100, via 130, limiting through hole 120 and the
Two installation through-holes 110, upper cover body 10 is arranged on lower box 11, and by the spacing upper cover body 10 that is compressed in of sealing ring 12 with
Between casing 11.
What deserves to be explained is in this application, the first installation through-hole 100, the second installation through-hole 110 and positive stop lug boss 13 are equal
Be provided with it is multiple, to ensure the mounting stability between upper cover body 10, sealing ring 12 and lower box 11.
Alternatively, in the projection obtained along the thickness direction of sealing ring 12, the perspective plane of the first installation through-hole 100 and via
130 perspective plane is completely superposed, and so design is not only convenient for the processing of the first installation through-hole 100 and via 130, i.e.,：This first
Installation through-hole 100 and via 130 can be formed by same punch device punching；And it is also convenient for fastener 14 and sequentially passes through first
Installation through-hole 100 and via 130, improve the efficiency of assembling of fastener 14.
Alternatively, in the projection obtained along the thickness direction of sealing ring 12, the perspective plane of the second installation through-hole 110 and via
130 perspective plane is completely superposed, and so design is not only convenient for the processing of the second installation through-hole 110 and via 130, i.e.,：This second
Installation through-hole 110 and via 130 can be formed by the disposable punching of same punch device；And it is also convenient for fastener 14 and wears successively
The installation through-hole 110 of via 130 and second, improve the efficiency of assembling of fastener 14.
In another embodiment of the application, the first installation through-hole 100 offers multiple, and two neighboring first installation is logical
Formed with positive stop lug boss 13 between hole 100, the first installation through-hole 100 and the second installation through-hole 110 are sequentially passed through in fastener 14
With by upper cover body 10 be arranged on lower box 11 on when, the positive stop lug boss 13 in the presence of the fastening force of its both sides fastener 14,
Stably spacing it can coordinate in the limiting through hole 120 of sealing ring 12, so as to ensure that sealing ring 12 can stably be compressed
Between primary sealing area and secondary sealing area.In addition, by positive stop lug boss 13 be arranged on two neighboring first installation through-hole 100 it
Between, it may not be necessary to the perforate passed through for fastener 14 is opened up on positive stop lug boss 13, therefore, reduces adding for positive stop lug boss 13
Work difficulty.
Alternatively, above-mentioned positive stop lug boss 13 has joint face, bearing surface and the outside wall surface of connection joint face and bearing surface, should
Joint face is connected with one of primary sealing area and secondary sealing area, and the bearing surface can seal with primary sealing area and second
The other of face is abutted, and outside wall surface is bonded with the internal face of limiting through hole 120, and so design can alleviate the edge of sealing ring 12
The probability that horizontal direction is moved, ensure the sealing ring 12 be stably compressed in primary sealing area and secondary sealing area it
Between.
What deserves to be explained is the horizontal direction is vertical with the thickness direction of sealing ring 12.
In one embodiment of the application, above-mentioned upper cover body 10 has stitching surface, the stitching surface and primary sealing area edge
The thickness direction of sealing ring 12 is oppositely arranged, and battery case also includes pressing plate 15, and pressing plate 15 offers pilot hole 150, the assembling
Hole 150 is oppositely arranged and connected on the thickness direction of sealing ring 12 with the first installation through-hole 100, passes through one end of fastener 14
Through the installation through-hole 100 of pilot hole 150 and first, pressing plate 15 is pressed together on stitching surface, so that upper cover body 10 can
It is pressed on lower box 11, ensures upper cover body 10 and the mounting stability of lower box 11, alleviates upper cover body 10 and sent out with lower box 11
Raw situation about rocking, so as to alleviate the degree of wear of sealing ring 12, extend the service life of sealing ring 12.
And above-mentioned lower box 11 has locking face, the locking face is relative with thickness direction of the secondary sealing area along sealing ring 12
Set, the battery case also includes tight lock part 16, and the tight lock part 16 and locking face are against and tight lock part 16 offers and second installs
The screwed hole 160 that through hole 110 connects, one end of fastener 14 sequentially passes through the first installation through-hole 100 and the second installation through-hole 110
And coordinate with the screw thread of screwed hole 160, to realize the locking of fastener 14, ensure that upper cover body 10 and the installation of lower box 11 are stable
Property, so as to alleviate the situation that upper cover body 10 and lower box 11 shake, alleviate the degree of wear of sealing ring 12, extend sealing ring
12 service life.In addition, in the present embodiment by tight lock part 16 and locking face against, so design so that fastener 14 according to
Secondary pass through can carry out screw thread with the screwed hole 160 on tight lock part 16 after the first installation through-hole 100 and the second installation through-hole 110 and match somebody with somebody
Close, to realize the locking of itself, improve the efficiency of the locking of fastener 14.
Preferably, tight lock part 16 is integrally formed with lower box 11, not only can effectively ensure tight lock part 16 and lower box
Bonding strength between 11, but also the batch production of tight lock part 16 and lower box 11 can be realized, to improve production efficiency, reduce
Process materials cost.
Based on said structure, a specific implementation case in the application is as follows：
The original depth of sealing ring 12 is 3mm, and the demand decrement of sealing ring 12 is between 30%~70%, and limit convex
The height of platform 13 is 1.5mm, and the thickness of upper cover body 10 is 3mm, when use fastener 14 (fastener 14 can be bolt) will
When lower box 11 and upper cover body 10 are locked, in the presence of the torsion of fastener 14, upper cover body 10 can press against sealing ring 12 to nowel
Direction motion where body 11, until the positive stop lug boss 13 in upper cover body 10 touches lower box 11, now sealing ring 12 will not
It can be recompressed slightly, decrement 50%, so as to realize sealing function.
The preferred embodiment of the application is the foregoing is only, is not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
- A kind of 1. battery case, it is characterised in that including：Upper cover body, lower box, sealing ring, positive stop lug boss and fastener,The upper cover body has primary sealing area and the first installation through-hole, and the lower box has secondary sealing area and the second installation Through hole,The primary sealing area and the secondary sealing area are oppositely arranged on the thickness direction of the sealing ring, and the sealing For circle between the primary sealing area and the secondary sealing area, the sealing ring offers limiting through hole,First installation through-hole and second installation through-hole are oppositely arranged on the thickness direction of the sealing ring, described tight One end of firmware passes through first installation through-hole and second installation through-hole, and the upper cover body is arranged on into the nowel On body,The height of the positive stop lug boss is less than the original depth of the sealing ring before compression, and the height is in the sealing ring Thickness direction on size, the positive stop lug boss is integrally formed with one of the upper cover body and the lower box, and institute The limiting through hole can be passed through and be abutted with the primary sealing area or the secondary sealing area by stating one end of positive stop lug boss.
- 2. battery case according to claim 1, it is characterised in thatThe positive stop lug boss is integrally formed with the upper cover body, one end of the positive stop lug boss through the limiting through hole and with institute State secondary sealing area abutting.
- 3. battery case according to claim 2, it is characterised in thatOn the thickness direction of the sealing ring, the positive stop lug boss is relative with first installation through-hole, the positive stop lug boss The via connected with first installation through-hole is offered, the via can pass through for one end of the fastener.
- 4. battery case according to claim 3, it is characterised in thatIn the projection obtained along the thickness direction of the sealing ring, the perspective plane of first installation through-hole and the throwing of the via Shadow face is completely superposed.
- 5. battery case according to claim 3, it is characterised in thatIn the projection obtained along the thickness direction of the sealing ring, the perspective plane of second installation through-hole and the throwing of the via Shadow face is completely superposed.
- 6. battery case according to claim 2, it is characterised in thatFirst installation through-hole offer it is multiple, formed with the limit convex between two neighboring first installation through-hole Platform.
- 7. battery case according to claim 1, it is characterised in thatThe positive stop lug boss has joint face, bearing surface and the outside wall surface for connecting the joint face and the bearing surface, the company Junction is connected with one of the primary sealing area and the secondary sealing area, and the bearing surface can be with the described first sealing The other of face and the secondary sealing area are abutted, and the outside wall surface is bonded with the internal face of the limiting through hole.
- 8. battery case according to claim 1, it is characterised in thatThe upper cover body has a stitching surface, and the stitching surface is relative with thickness direction of the primary sealing area along the sealing ring Set,The battery case also includes pressing plate, and the pressing plate offers pilot hole, and the pilot hole exists with first installation through-hole It is oppositely arranged and connects on the thickness direction of the sealing ring, by one end of the fastener through the pilot hole and described First installation through-hole, the pressing plate is pressed together on the stitching surface.
- 9. battery case according to any one of claim 1 to 8, it is characterised in thatThe lower box has a locking face, and the locking face is relative with thickness direction of the secondary sealing area along the sealing ring Set,The battery case also includes tight lock part, and the tight lock part offers the screwed hole connected with second installation through-hole,One end of the fastener sequentially pass through first installation through-hole and second installation through-hole and with the screwed hole Screw thread coordinates, the tight lock part and the locking face against.
- 10. battery case according to claim 9, it is characterised in thatThe tight lock part and the nowel body by integral forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757472.0U CN206878069U (en) | 2017-06-27 | 2017-06-27 | Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720757472.0U CN206878069U (en) | 2017-06-27 | 2017-06-27 | Battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206878069U true CN206878069U (en) | 2018-01-12 |
Family
ID=61331190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720757472.0U Active CN206878069U (en) | 2017-06-27 | 2017-06-27 | Battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206878069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486470A (en) * | 2019-08-21 | 2019-11-22 | 中材科技（苏州）有限公司 | A kind of sealing connecting structure of composite material casing |
| WO2020088443A1 (en) * | 2018-11-01 | 2020-05-07 | 宁德时代新能源科技股份有限公司 | Battery box and vehicle |
-
2017
- 2017-06-27 CN CN201720757472.0U patent/CN206878069U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020088443A1 (en) * | 2018-11-01 | 2020-05-07 | 宁德时代新能源科技股份有限公司 | Battery box and vehicle |
| CN113206341A (en) * | 2018-11-01 | 2021-08-03 | 宁德时代新能源科技股份有限公司 | Battery box |
| US11139526B2 (en) | 2018-11-01 | 2021-10-05 | Contemporary Amperex Technology Co., Limited | Battery box |
| CN113206341B (en) * | 2018-11-01 | 2022-04-12 | 宁德时代新能源科技股份有限公司 | Battery box |
| US11780645B2 (en) | 2018-11-01 | 2023-10-10 | Contemporary Amperex Technology Co., Limited | Battery box |
| CN110486470A (en) * | 2019-08-21 | 2019-11-22 | 中材科技（苏州）有限公司 | A kind of sealing connecting structure of composite material casing |
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