CN207852739U - A kind of battery case sealing structure - Google Patents
A kind of battery case sealing structure Download PDFInfo
- Publication number
- CN207852739U CN207852739U CN201820136558.6U CN201820136558U CN207852739U CN 207852739 U CN207852739 U CN 207852739U CN 201820136558 U CN201820136558 U CN 201820136558U CN 207852739 U CN207852739 U CN 207852739U
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- China
- Prior art keywords
- sealing
- babinet
- battery case
- cover board
- bottom plate
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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
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a kind of battery case sealing structure, including bottom plate, babinet, linear sealing circle and cover board, the babinet includes window, the bottom plate is located at the box inside and with the opening being connected to the window, the cover board is located on the outside of the babinet, the linear sealing circle includes sealing ring and connects the sealing strip of the sealing ring, the linear sealing circle is between the cover board and babinet, the bottom plate, babinet, linear sealing circle and cover board are fixed by fastening bolt, the fastening bolt passes through the sealing ring, the fastening bolt fastening increasing back sealing ring is identical as the decrement at each position of sealing strip.The battery case sealing structure is not only convenient for repeating to dismount to meet maintenance and the maintenance needs during use, and can ensure that each position still possesses the sealing effect of preferable equilibrium in the case where applying smaller torque after being dismounted for multiple times.
Description
Technical field
The utility model is related to a kind of battery case sealing structures.
Background technology
In recent years due to the exhaustion of the energy and the needs of environmental protection, the development and application of electric vehicle becomes inevitable and becomes
Gesture.Key components and parts of the power battery as electric vehicle, play the role of vital.Power battery is generally seated in sealing
The battery management system being mainly made of all kinds of electronic components is also equipped in battery case, while in battery case, in entire battery
In the life cycle of group, above-mentioned electronic component may be needed repairing or be replaced, so just needing to dismantle babinet.Due to major part
Battery case is installed on the car body, and integral demounting is cumbersome, and repeatedly dismounting can influence the leakproofness of Battery case, also gives electricity
The safety of motor-car brings hidden danger.
The patent of Patent No. CN206332101U discloses a kind of power battery box fuse Quick change module sealing device,
Including Battery case, fuse base, inner seal pad, outer side seal pad and fuse cover board, set on the Battery case
Module openings are equipped with, the fuse base is fixed at the inside on Battery case and positioned at module openings, described
Inner seal pad is arranged between fuse base and Battery case, and the fuse cover board is fixed at Battery case
Outsides upper and positioned at module openings, the outer side seal pad are arranged between fuse cover board and Battery case.The program
Using the sealing device for being suitable for the modules able to quickly change such as fuse with fuse base, open ended electronic component compares
It is single, but for complicated batteries management system, since it is closely coupled with battery module and can not be partitioned to independence
Accommodating chamber in, therefore repair to batteries management system or replace and need larger operable window, the window
Be required to realize being dismounted for multiple times and good leakproofness, especially for by liquid to entire battery pack carry out it is cooling or
The Battery case of heat dissipation is particularly harsh to leakproofness.
Utility model content
The utility model provided for problems of the prior art it is a kind of simple in structure, it is easy for removal and installation and
The good battery case sealing structure of sealing effect, including bottom plate, babinet, linear sealing circle and cover board, the babinet include window, institute
It states bottom plate to be located at the box inside and there is the opening being connected to the window, the cover board is located on the outside of the babinet, institute
It states linear sealing circle to include sealing ring and connect the sealing strip of the sealing ring, the linear sealing circle is located at the cover board and case
Between body, the bottom plate, babinet, linear sealing circle and cover board are fixed by fastening bolt, and the fastening bolt passes through described close
Seal ring, the fastening bolt fastening increasing back sealing ring are identical as the decrement at each position of sealing strip.
The corresponding Battery case of the window is internally provided with battery management system, includes mainly all kinds of electronic components.
In the life cycle of entire battery pack, the electronic component is likely to occur problem, needs to overhaul or replace, therefore institute is arranged
Window is stated as overhauls window.The bottom plate is the annular plate with threaded hole, is coordinated the cover board with the fastening bolt
It is fixed on the babinet to seal the window, the mounting lug extended to window center, institute is arranged in the edge of window edge
It states and mounting hole is set on mounting lug, the bottom plate and babinet are fixed by the installation bolt across mounting hole in advance, prevent bottom plate
It is fallen in disassembly process and damages electronic component.
On the one hand the cover board is required to realize multiple disassembly and installation, after on the other hand requiring repeatedly disassembly and installation
Still maintain preferable sealing effect.Linear sealing circle is set between the cover board and babinet, and the linear sealing circle includes
Sealing ring and the sealing strip for connecting the sealing ring, the decrement of fastening bolt the fastening increasing back sealing ring and each position of sealing strip
Identical, to ensure that the linear sealing circle can be achieved with preferable sealing effect under smaller torque, and each position exists
Sync equalizing is compressed during torque is stepped up, and avoids generating gap, the decrement packet caused by decrement unevenness
Include the variation of volume and shape after compressing.The cover board, babinet and bottom plate include for the fastening bolt by fastener hole, institute
The inside diameter for stating sealing ring is slightly larger than the diameter of the fastener hole, and the box house fluid can be effectively prevent to described tight
Solid hole is permeated, and the loosening for causing fastening bolt is avoided.
In addition, when torque increases, the sealing ring generates deformation by compression, and inner ring tight enclosure due to deformation fastens spiral shell
The surrounding of bolt, therefore, the sealing ring can ensure the horizontal and vertical sealing effect of fastening position in sealing, so-called
It is laterally the direction that the box house is revealed outward by the gap between the cover board and the babinet, the longitudinal direction
The direction that the i.e. described box house is revealed outward by the fastener hole on the cover board.
In a kind of embodiment of the utility model, the bottom plate is the cyclic structure extended along window.
The size and shape for the opening that the bottom plate is connected to the window can be designed according to actual conditions, described to open
The edge of mouth can be flushed with edge of window edge or the opening is less than the window, need to meet the requirement ruler of maintenance conditions
It is very little.
In a kind of embodiment of the utility model, the section of the sealing ring is identical as the section of the sealing strip.
The identical deformation that can ensure to generate during torque is increased in section is identical, including deformed shape and deformable body
Product is identical so that the sealing effect at each position of linear sealing circle is identical, is not likely to produce gap.
It is arc-shaped at the top and bottom of the section in a kind of embodiment of the utility model.In this practicality
In a kind of novel embodiment, the shape in the section includes any one in round or ellipse.
The top and bottom in the section are arc-shaped so that when the linear sealing circle is with cover board, babinet or contacts baseplate
As being stepped up from line contact for torque becomes face contact, the way of contact is more stable, is not likely to produce partial aperture.
In a kind of embodiment of the utility model, linear sealing circle is also provided between the bottom plate and babinet.
Linear sealing circle between bottom plate and babinet can effectively prevent fastening of the box house fluid on babinet
Hole is permeated.
In a kind of embodiment of the utility model, the cover board and/or bottom plate are equipped with groove, institute towards babinet side
Linear sealing circle is stated at least partly to be stuck in the groove.
On the one hand the linear sealing circle needs to ensure sealing effect, prevent box house from generating leakage, another party outward
Not easily to fall off or sliding is answered in face, by designing position limiting structure, such as groove on the cover board and/or bottom plate so that the line
Property sealing ring be at least partly stuck in the position limiting structure and realize express delivery limit, prevent linear sealing circle from sliding or de- occurs
It falls, while linear sealing circle being prevented to be crushed.
In a kind of embodiment of the utility model, blind hole, the blind hole and the fastening spiral shell are set on the bottom plate
Bolt cooperation is fixed.
Sheet metal component pressure-riveting process or die casting aluminium technique can be used in the bottom plate, and the blind hole design avoids in the babinet
Portion's fluid keeps connection type more firm from bolt hole bottom leaky.
In a kind of embodiment of the utility model, the fastening bolt includes sealing bolt.
The sealing bolt can ensure itself sealing effect between cover board, prevent the liquid of the box house logical
The threaded hole crossed on cover board is revealed to exosmosis.
In a kind of embodiment of the utility model, the sealing bolt includes the body of bolt and bolt head and is sleeved on spiral shell
O-ring on body either the plain washer O-ring or plain washer between bolt head and the cover board.
The O-ring or plain washer are sleeved on the body of bolt, and the inside diameter of the O-ring and plain washer is bigger
In the diameter of the cover board upper screwed hole, i.e., on the outside of the cover board, the O-ring or plain washer coordinate with the bolt head
The threaded hole can be surrounded, to effectively prevent the box house to be let out outward by the threaded hole on the cover board
Dew.
In a kind of embodiment of the utility model, on the bolt head with around body of bolt junction be arranged groove knot
Structure, the O-ring or plain washer are at least partly stuck in the groove structure.
The depth of the groove need to ensure the leakproofness and decrement of O-ring or plain washer, gradually increased in torque
In the process, the O-ring or plain washer stress deform upon to fill between the sealing bolt and cover board, play close
Envelope acts on, and is further increased in torque until under the limiting case that is contacted with cover board of lower surface of the bolt head, the groove
Structure can prevent O-ring or plain washer to be crushed.
In one embodiment of the invention, breather valve and/or explosive valve are set on the cover board.
For the breather valve as ventilation device, the pressure for adjusting the box house is at suitable work
Under pressure.The explosive valve ensures safety as emergency set for carrying out pressure release to the babinet under extreme case.
Using battery case sealing structure described in the utility model, on the one hand it is convenient for repeated removal and installation to meet electricity
The maintenance in use of pond group and maintenance needs, still possess preferable sealing after on the other hand capable of ensureing being dismounted for multiple times
Effect can prevent liquid in the babinet from described especially for the battery case for being cooled down or being radiated using liquid
The outside leakage of the mounting hole on gap and the cover board between bottom plate and cover board, to ensure battery pack safety and
Reliability.
Description of the drawings
Fig. 1 show a kind of exploded perspective view of battery case sealing structure disclosed by the utility model；
Fig. 2 show the exploded perspective view of another battery case sealing structure disclosed by the utility model；
Fig. 3 show the structural schematic diagram of linear sealing circle disclosed by the utility model；
Fig. 4 show a kind of structural schematic diagram of window disclosed by the utility model；
Fig. 5 show a kind of structural schematic diagram of cover board disclosed by the utility model；
Fig. 6 show a kind of structural schematic diagram of bottom plate disclosed by the utility model；
Fig. 7 show the schematic diagram of sealing bolt disclosed by the utility model.
Wherein, 1- bottom plates, 2- babinets, 3- linear sealing circles, 31- sealing rings, 32- sealing strips, 4- cover boards, 41- breather valves,
42- explosive valves, 5- windows, 6- fastening bolts, 61-O type circles, 62- plain washers, the 63- bodies of bolt, 64- bolt heads, 7- grooves, 8-
Blind hole.
Specific implementation mode
The embodiments of the present invention are described below in conjunction with the accompanying drawings, however the utility model is not restricted to following implementation
Example.
Embodiment 1
As shown in Fig. 1 and Fig. 3-6, the present embodiment provides a kind of battery case sealing structure, including it is bottom plate 1, babinet 2, linear
Sealing ring 3 and cover board 4, the babinet 2 include window 5, and the bottom plate 1 is located at 2 inside of the babinet and has and the window 5
The opening of connection, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 includes sealing ring 31 and connects described close
The sealing strip 32 of seal ring 31, the linear sealing circle 3 are the bottom plate 1, babinet 2, linear between the cover board 4 and babinet 2
Sealing ring 3 and cover board 4 are fixed by fastening bolt 6, and the fastening bolt 6 passes through the sealing ring 31, the fastening bolt 6 tight
Gu increasing back sealing ring 31 is identical as the decrement at 32 each position of sealing strip.
Embodiment 2
As shown in Fig. 1 and Fig. 3-6, the present embodiment provides a kind of battery case sealing structure, including it is bottom plate 1, babinet 2, linear
Sealing ring 3 and cover board 4, the babinet 2 include window 5, and it is along window 5 that the bottom plate 1, which is located at 2 inside of the babinet and bottom plate 1,
The cyclic structure of extension, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 includes sealing ring 31 and connection institute
State the sealing strip 32 of sealing ring 31, the linear sealing circle 3 between the cover board 4 and babinet 2, the bottom plate 1, babinet 2,
Linear sealing circle 3 and cover board 4 are fixed by fastening bolt 6, and the fastening bolt 6 passes through the sealing ring 31, the fastening spiral shell
It is identical as the decrement at 32 each position of sealing strip that bolt 6 fastens increasing back sealing ring 31.
Embodiment 3
As shown in figures 1 and 3, the present embodiment provides a kind of battery case sealing structure, including it is bottom plate 1, babinet 2, linear close
Seal 3 and cover board 4, the babinet 2 include window 5, and the bottom plate 1 is located at 2 inside of the babinet and has and connects with the window 5
Logical opening, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 includes sealing ring 31 and the connection sealing
The section of the sealing strip 32 of ring 31, the section of the sealing ring 31 and the sealing strip 32 is identical ellipsoidal structure, described
Linear sealing circle 3 is between the cover board 4 and babinet 2, and the bottom plate 1, babinet 2, linear sealing circle 3 and cover board 4 are by tight
Fixing bolt 6 is fixed, and the fastening bolt 6 passes through the sealing ring 31, the fastening bolt 6 to fasten increasing back sealing ring 31 and sealing strip
The decrement at 32 each positions is identical, and breather valve 41 and explosive valve 42 are arranged on the cover board 4.
Embodiment 4
As shown in figures 1 and 3, the present embodiment provides a kind of battery case sealing structure, including it is bottom plate 1, babinet 2, linear close
Seal 3 and cover board 4, the babinet 2 include window 5, and it is along 5 side of window that the bottom plate 1, which is located at 2 inside of the babinet and bottom plate 1,
Along to the cyclic structure extended far from 5 center position of window, the cover board 4 is located at 2 outside of the babinet, the linear sealing circle
3 include sealing ring 31 and the sealing strip 32 for connecting the sealing ring 31, the section of the sealing ring 31 and the sealing strip 32
Section be identical circular configuration, the linear sealing circle 3 between the cover board 4 and babinet 2, the bottom plate 1, babinet 2,
Linear sealing circle 3 and cover board 4 are fixed by fastening bolt 6, and the fastening bolt 6 passes through the sealing ring 31, the fastening spiral shell
The fastening increasing back sealing ring 31 of bolt 6 is identical as the decrement at 32 each position of sealing strip, and breather valve 41 is arranged on the cover board 4.
Embodiment 5
As shown in figures 2-6, the present embodiment provides a kind of battery case sealing structures, including bottom plate 1, babinet 2, linear sealing circle
3 and cover board 4, the babinet 2 includes window 5, and the bottom plate 1 is located at what 2 inside of the babinet and having was connected to the window 5
Opening, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 is including sealing ring 31 and connects the sealing ring 31
Sealing strip 32, linear sealing circle 3 is set between cover board 4 and babinet 2 described in linear sealing circle 3, the bottom plate 1 and babinet 2 it
Between setting linear sealing circle 3, the bottom plate 1,2, two linear sealing circles 3 of babinet and cover board 4 are fixed by fastening bolt 6, institute
Stating fastening bolt 6 passes through the sealing ring 31, the fastening bolt 6 to fasten the compression of increasing back sealing ring 31 and 32 each position of sealing strip
Measure identical, the cover board 4 and bottom plate 1 are equipped with groove 7 towards 2 side of babinet, and the linear sealing circle 3 is at least partly stuck in described
In groove 7, explosive valve 42 is set on the cover board 4.
Embodiment 6
As shown in figures 2-6, the present embodiment provides a kind of battery case sealing structures, including bottom plate 1, babinet 2, linear sealing circle
3 and cover board 4, the babinet 2 includes window 5, and the bottom plate 1 is located at what 2 inside of the babinet and having was connected to the window 5
Opening, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 is including sealing ring 31 and connects the sealing ring 31
Sealing strip 32, linear sealing circle 3 is set between the cover board 4 and babinet 2, is arranged between the bottom plate 1 and babinet 2 linear close
Seal 3, the bottom plate 1,2, two linear sealing circles 3 of babinet and cover board 4 are fixed by fastening bolt 6, and the fastening bolt 6 is worn
The sealing ring 31 is crossed, the fastening increasing back sealing ring 31 of the fastening bolt 6 is identical as the decrement at 32 each position of sealing strip, the bottom
Blind hole 8 is set on plate 1, and the blind hole 8 is fixed with the cooperation of the fastening bolt 6, and the fastening bolt 6 includes sealing bolt, institute
It includes the body of bolt 63 and bolt head 64 and the O-ring 61 being sleeved on the body of bolt 63 or plain washer 62, the O to state sealing bolt
Type circle 61 or 62 body of bolt 63 of plain washer are between bolt head 64 and the cover board 4.
Embodiment 7
As illustrated in figs. 2-7, the present embodiment provides a kind of battery case sealing structures, including bottom plate 1, babinet 2, linear sealing circle
3 and cover board 4, the babinet 2 includes window 5, and the bottom plate 1 is located at what 2 inside of the babinet and having was connected to the window 5
Opening, the cover board 4 are located at 2 outside of the babinet, and the linear sealing circle 3 is including sealing ring 31 and connects the sealing ring 31
Sealing strip 32, linear sealing circle 3 is set between the cover board 4 and babinet 2, is arranged between the bottom plate 1 and babinet 2 linear close
Seal 3, the bottom plate 1,2, two linear sealing circles 3 of babinet and cover board 4 are fixed by fastening bolt 6, and the fastening bolt 6 is worn
The sealing ring 31 is crossed, the fastening increasing back sealing ring 31 of the fastening bolt 6 is identical as the decrement at 32 each position of sealing strip, described tight
Fixing bolt 6 includes sealing bolt, and the sealing bolt includes the body of bolt 63 and bolt head 64 and is sleeved on O-shaped on the body of bolt 63
Circle 61 either 62 O-ring 61 of plain washer or 62 body of bolt 63 of plain washer between bolt head 64 and the cover board 4,
On the bolt head 64 with groove structure, the O-ring 61 or at least portion of plain washer 62 are set around 63 junction of the body of bolt
Divide and is stuck in the groove structure.
The basic principles and main features of the utility model have been shown and described above.The technical staff of the industry should
Solution, the present utility model is not limited to the above embodiments, and what is described in the above embodiment and the description is only the utility model
Principle, the utility model also has various changes and improvements on the premise of not departing from the spirit and scope of the utility model, these
Changes and improvements are both fallen in claimed the scope of the utility model.The protection domain of the requires of the utility model is by appended
Claims and its equivalent define.
Claims (12)
1. a kind of battery case sealing structure, it is characterised in that：Including bottom plate, babinet, linear sealing circle and cover board, the babinet packet
Window is included, the bottom plate is located at the box inside and there is the opening being connected to the window, the cover board to be located at the case
External side, the linear sealing circle include sealing ring and connect the sealing strip of the sealing ring, and the linear sealing circle is located at institute
It states between cover board and babinet, the bottom plate, babinet, linear sealing circle and cover board are fixed by fastening bolt, the fastening bolt
Across the sealing ring, the fastening bolt fastening increasing back sealing ring is identical as the decrement at each position of sealing strip.
2. battery case sealing structure according to claim 1, it is characterised in that：The bottom plate is the ring-type extended along window
Structure.
3. battery case sealing structure according to claim 1, it is characterised in that：The section of the sealing ring and the sealing
The section of item is identical.
4. battery case sealing structure according to claim 3, it is characterised in that：It is circle at the top and bottom of the section
Arc.
5. battery case sealing structure according to claim 4, it is characterised in that：The shape in the section includes round or ellipse
Any one in circle.
6. battery case sealing structure according to claim 1, it is characterised in that：It is also provided with line between the bottom plate and babinet
Property sealing ring.
7. battery case sealing structure according to claim 6, it is characterised in that：The cover board and/or bottom plate are towards babinet
Side is equipped with groove, and the linear sealing circle is at least partly stuck in the groove.
8. battery case sealing structure according to claim 1, it is characterised in that：Blind hole is set on the bottom plate, it is described blind
Hole is fixed with fastening bolt cooperation.
9. battery case sealing structure according to claim 1, it is characterised in that：The fastening bolt includes sealing bolt.
10. battery case sealing structure according to claim 9, it is characterised in that：The sealing bolt include the body of bolt and
Either the plain washer O-ring or plain washer are located at bolt head and the lid for bolt head and the O-ring that is sleeved on the body of bolt
Between plate.
11. battery case sealing structure according to claim 10, it is characterised in that：It is connect with the body of bolt on the bolt head
Groove structure is set around place, and the O-ring or plain washer are at least partly stuck in the groove structure.
12. battery case sealing structure according to claim 1, it is characterised in that：On the cover board be arranged breather valve and/or
Explosive valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820136558.6U CN207852739U (en) | 2018-01-26 | 2018-01-26 | A kind of battery case sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820136558.6U CN207852739U (en) | 2018-01-26 | 2018-01-26 | A kind of battery case sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207852739U true CN207852739U (en) | 2018-09-11 |
Family
ID=63412816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820136558.6U Active CN207852739U (en) | 2018-01-26 | 2018-01-26 | A kind of battery case sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207852739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333958A (en) * | 2020-11-23 | 2021-02-05 | 瑞德(新乡)路业有限公司 | Intelligent management box for intelligent city management |
| CN114812909A (en) * | 2022-03-29 | 2022-07-29 | 东风柳州汽车有限公司 | Method, device and equipment for determining battery bolt torque and storage medium |
-
2018
- 2018-01-26 CN CN201820136558.6U patent/CN207852739U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112333958A (en) * | 2020-11-23 | 2021-02-05 | 瑞德(新乡)路业有限公司 | Intelligent management box for intelligent city management |
| CN114812909A (en) * | 2022-03-29 | 2022-07-29 | 东风柳州汽车有限公司 | Method, device and equipment for determining battery bolt torque and storage medium |
| CN114812909B (en) * | 2022-03-29 | 2024-03-22 | 东风柳州汽车有限公司 | Method, device, equipment and storage medium for determining battery bolt torque |
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