CN207676974U - Battery case - Google Patents
Battery case Download PDFInfo
- Publication number
- CN207676974U CN207676974U CN201721892114.7U CN201721892114U CN207676974U CN 207676974 U CN207676974 U CN 207676974U CN 201721892114 U CN201721892114 U CN 201721892114U CN 207676974 U CN207676974 U CN 207676974U
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- CN
- China
- Prior art keywords
- box
- battery case
- entablature
- eaves portion
- sealed colloid
- 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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- 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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- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of battery case, including：Upper box, lower box and sealed colloid.Upper box has：Upper side wall；And upper eaves portion, it is connected to the lower end of upper side wall.Lower box has：Lower wall；And lower entablature, it is connected to the upper end of lower wall.Simultaneously to extending inwardly with outer circumferential in the week of upper side wall, lower entablature extends with outer circumferential to all of lower wall upper eaves portion inwardly simultaneously.Sealed colloid is set between eaves portion and lower entablature and fixes, is tightly connected upper box and lower box.Thereby increase the contact area between sealed colloid and upper box, lower box, and upper box with lower box when being fixedly connected, each section uniform force of sealed colloid, to improve the connection reliability between upper box and lower box.Due to the cementability of sealed colloid itself, sealed colloid is not easy to be extruded, and avoids the seal failure problem caused by the inside and outside air pressure difference of battery case is larger, ensure that the safety of battery case.
Description
Technical field
The utility model is related to battery technology field more particularly to a kind of battery cases.
Background technology
Battery is the core of electric automobile energy supply, the service life of electric vehicle and the security performance of electric vehicle
All with battery tight association, therefore the protective capacities of the battery case to accommodating battery require it is also especially stringent, especially to battery
The waterproofing grade of case requires even more higher and higher.
In existing technology, be mostly at the upper box of battery case and the sealing surface of lower box carried out by sealing ring it is close
It seals and is fixed by bolt.But due to being only that compression contacts between sealing ring and upper box and lower box, work as battery case
Inside and outside air pressure difference it is larger when, sealing ring is easy to be extruded or be deformed, and then leads to seal failure.Also, it uses
A uniform compressing force cannot be applied to sealing ring by being bolted, so that the sealing reliability of the battery case of this structure
It is relatively low, the problem of seal failure of battery case can often occur.
Utility model content
The problem of in view of background technology, the purpose of this utility model is to provide a kind of battery case, which raises
Connection reliability between upper box and lower box and caused by avoiding when the inside and outside air pressure of battery case differs larger
Seal failure problem ensure that the safety inside battery case.
To achieve the goals above, the utility model provides a kind of battery case comprising：Upper box, lower box and
Sealed colloid.Upper box has：Upper side wall；And upper eaves portion, it is connected to the lower end of upper side wall.Lower box is fixedly connected on top box
Body simultaneously has：Lower wall；And lower entablature, it is connected to the upper end of lower wall.Wherein, the upper eaves portion of upper box is simultaneously to upper side wall
Extend inwardly with outer circumferential in week, the lower entablature of lower box with outer circumferential simultaneously to prolonging in the week of lower wall inwardly
It stretches.Sealed colloid is set between the upper eaves portion of upper box and the lower entablature of lower box and fixed, sealed connection upper box
And lower box.
The beneficial effects of the utility model are as follows：
In battery case according to the present utility model, the upper eaves portion of upper box is inwardly and circumferential to the week of upper side wall simultaneously
Outside extension forms, the lower entablature of lower box extends with outer circumferential to all of lower wall inwardly simultaneously, and fluid sealant
Upper box and lower box are fixed and be tightly connected to body between the upper eaves portion and the lower entablature of lower box of upper box, thereby increases
The upper eaves portion of sealed colloid and upper box, lower box lower entablature between contact area, and upper box and lower box are in fixation
When connection, each section uniform force of sealed colloid, to improve the connection reliability between upper box and lower box.And
And in background technology using fastener fix and sealing ring seal by the way of compared with, the connection of the battery case of the utility model
Mode is simple, realizes fixation and sealing between upper box and lower box simultaneously using sealed colloid.When in battery case
External pressure difference it is larger when, due to the cementability of sealed colloid itself, sealed colloid is not easy to be extruded, so as to avoid due to
The inside and outside air pressure difference of battery case caused seal failure problem when larger, ensure that the safety inside battery case.
Description of the drawings
Fig. 1 is the explosive view of battery case according to the present utility model.
Fig. 2 is the assembling figure of each component in Fig. 1.
Fig. 3 is the stereogram of the upper box in Fig. 1.
Fig. 4 is the assembling figure of the lower box and battery in Fig. 1.
Fig. 5 is the vertical view of Fig. 2.
Fig. 6 is the sectional view after the line A-A cutting in Fig. 5.
Fig. 7 is a variation of Fig. 6.
Fig. 8 is another variation of Fig. 6.
Wherein, the reference numerals are as follows：
The circumferential inner edge of 1 upper box, 221 lower entablature
The circumferential outer rim of 11 upper side wall, 222 lower entablature
23 times reinforcing ribs of eaves portion on 12
The 24 lower hem portion of circumferential inner edge of eaves portion on 121
3 sealed colloid of circumferential outer rim of eaves portion on 122
31 planar portions of reinforcing rib on 13
14 upper hem portion, 32 extension
The circumferential inner edge of 2 lower box, 33 sealed colloid
The circumferential outer rim of 21 lower wall, 34 sealed colloid
22 lower entablature, 4 battery
Specific implementation mode
It is described in detail battery case according to the present utility model with reference to the accompanying drawings.
Referring to figs. 1 to Fig. 8, battery case according to the present utility model includes：Upper box 1, lower box 2 and sealed colloid 3.
Upper box 1 has：Upper side wall 11；And upper eaves portion 12, it is connected to the lower end of upper side wall 11.Lower box 2 is fixedly connected on top box
Body 1 simultaneously has：Lower wall 21；And lower entablature 22, it is connected to the upper end of lower wall 21.Wherein, the upper eaves portion 12 of upper box 1 is same
When to extending inwardly with outer circumferential in the week of upper side wall 11, the lower entablature 22 of lower box 2 is simultaneously to the week of lower wall 21
Extend inwardly with outer circumferential.Sealed colloid 3 is set to the upper eaves portion 12 of upper box 1 and the lower entablature 22 of lower box 2
Between and it is fixed, be tightly connected upper box 1 and lower box 2.
In battery case according to the present utility model, the upper eaves portion 12 of upper box 1 simultaneously to the week of upper side wall 11 inwardly
With outer circumferential extend form, the lower entablature of lower box 2 22 simultaneously to lower wall 21 week inwardly with outer circumferential extend and
At, and sealed colloid 3 is fixed between the upper eaves portion 12 of upper box 1 and the lower entablature 22 of lower box 2 and is tightly connected upper box 1
With lower box 2, thereby increase sealed colloid 3 and the upper eaves portion 12 of upper box 1, lower box 2 lower entablature 22 between contact
Area, and upper box 1 with lower box 2 when being fixedly connected, each section uniform force of sealed colloid 3, to improve top box
Connection reliability between body 1 and lower box 2.Also, with the side for using fastener fixation and sealing ring sealing in background technology
Formula is compared, and the connection type of the battery case of the utility model is simple, realizes upper box 1 simultaneously using sealed colloid 3 under
Fixation between babinet 2 and sealing.When the inside and outside air pressure difference of battery case is larger, due to the bonding of itself of sealed colloid 3
Property, sealed colloid 3 is not easy to be extruded, and is lost so as to avoid sealing caused by when the inside and outside air pressure difference of battery case is larger
Effect problem ensure that the safety inside battery case.
Week from the upper eaves portion 12 of upper box 1 to upper side wall 11 part that extends inwardly with to the outer circumferential of upper side wall 11
The partial symmetry of extension is distributed.Week from the lower entablature 22 of lower box 2 to lower wall 21 part that extends inwardly with to lower wall
The part that 21 outer circumferential extends is also symmetrical.Upper eaves portion 12 and 22 this symmetrical structure of lower entablature so that 1 He of upper box
For lower box 2 when being fixedly connected, each section stress of sealed colloid 3 evenly, is conducive to the sealing effect for promoting battery case.
In order to ensure upper box 1 with lower box 2 when being fixedly connected, each section uniform force of sealed colloid 3, upper box
1 upper eaves portion 12 can be parallel to the lower entablature 22 of lower box 2, to ensure the connection reliability between upper box 1 and lower box 2
And the sealing effect of battery case.
With reference to Fig. 7, upper box 1 can also have：Upper reinforcing rib 13 is formed between eaves portion 12 and upper side wall 11 and connects
Upper eaves portion 12 and upper side wall 11 so that upper eaves portion 12 perpendicular to upper side wall 11.In order to ensure between upper eaves portion 12 and upper side wall 11
Verticality, it is preferable that upper reinforcing rib 13 be formed simultaneously in upper side wall 11 week inwardly with outer circumferential and symmetrical.
With reference to Fig. 7, lower box 2 can also have：Lower reinforcing rib 23, is formed between lower entablature 22 and lower wall 21 and connects
Lower entablature 22 and lower wall 21 so that lower entablature 22 perpendicular to lower wall 21.In order to ensure between lower entablature 22 and lower wall 21
Verticality, it is preferable that lower reinforcing rib 23 be formed simultaneously in lower wall 21 week inwardly with outer circumferential and symmetrical.
With reference to Fig. 8, upper box 1 can also have：Upper hem portion 14 is formed in the circumferential inner edge 121 of eaves portion and/or upper eaves
The circumferential outer rim 122 in portion simultaneously upwardly extends.Correspondingly, lower box 2 can also have：Lower hem portion 24, is formed in lower entablature
Circumferential inner edge 221 and/or the circumferential outer rim 222 and upwardly extending of lower entablature form and the upper hem portion 14 in upper box 1
Outer circumferential.At this point, in order to promote the bonding strength and sealing effect between upper box 1 and lower box 2, sealed colloid 3 can
It is set between the upper eaves portion 12 of upper box 1 and the lower entablature 22 of lower box 2 and the upper hem portion 14 of upper box 1 and lower box
Between 2 lower hem portion 24.Here, the lower hem portion 24 of the setting and lower box 2 in the upper hem portion 14 of upper box 1 is set
It sets, on the one hand increases the complexity of upper box 1 and the sealing surface of lower box 2 so that the more difficult entrance of external steam
Battery case ensure that the sealing reliability of battery case；On the other hand, the upper eaves portion 12 and nowel of upper box 1 can suitably be reduced
The size of the lower entablature 22 of body 2, to be conducive to save the inner space of battery case.
With reference to Fig. 8, sealed colloid 3 can have：Planar portions 31, the lower eaves of upper eaves portion 12 and lower box 2 in upper box 1
Between portion 22 and it is tightly connected upper eaves portion 12 and lower entablature 22；And extension 32, the upper hem portion 14 in upper box 1 is under
Between the lower hem portion 24 of babinet 2 and it is tightly connected upper hem portion 14 and lower hem portion 24.Here, putting down due to sealed colloid 3
Face 31 is tightly connected upper eaves portion 12 and lower entablature 22, and the extension 32 of sealed colloid 3 is tightly connected upper hem portion 14 under
Flap 24 to further increase the contact area between sealed colloid 3 and upper box 1, lower box 2, thus improves
The adhesive strength of sealed colloid 3, to improve the connection reliability between upper box 1 and lower box 2.
In order to increase the contact area between sealed colloid 3 and upper box 1, lower box 2 to the greatest extent, it is preferable that on
The upper hem portion 14 of babinet 1 is formed simultaneously the circumferential outer rim 122 in the circumferential inner edge 121 of upper eaves portion and upper eaves portion and upwardly extends
Form, the lower hem portion 24 of lower box 2 be formed in lower entablature circumferential inner edge 221 and lower entablature circumferential outer rim 222 and upwards
Extend, as shown in Figure 8.
The company that the material of sealed colloid 3, size, adhesive strength can ensure according to the seal request and needs of battery case
Intensity is connect to determine.Specifically, the material of sealed colloid 3 can be polyurethane adhesive or silica gel.The thickness of sealed colloid 3 can be
0.2mm~20mm.Horizontal distance (referring to Fig.1) between the circumferential inner edge 33 of sealed colloid and the circumferential outer rim 34 of sealed colloid
Can be 5mm~50mm.Wherein, since sealed colloid 3 is ring-type, horizontal distance here is equivalent to each section of sealed colloid 3
Width.
The material of upper box 1 and lower box 2 can be sheet metal, aluminium alloy or composite material.
Horizontal distance between the circumferential inner edge 121 of the upper eaves portion of upper box 1 and the circumferential outer rim 122 of upper eaves portion can be
5mm~80mm.The thickness of upper box 1 can be 0.5mm~5mm.
Horizontal distance between the circumferential inner edge 221 of the lower entablature of lower box 2 and the circumferential outer rim 222 of lower entablature can be
5mm~80mm.The thickness of lower box 2 can be 0.5mm~5mm.
In battery case according to the present utility model, referring to Fig.1, Fig. 4 and Fig. 6 to Fig. 8, battery case may also include：Electricity
Pond 4 is contained in the hollow cavity that upper box 1 is formed with lower box 2.Since sealed colloid 3 ensure that upper box 1 and lower box
Connection reliability between 2 and seal failure caused by capable of avoiding when the inside and outside air pressure difference of battery case is larger is asked
Topic, to ensure that the safety inside battery case, thus battery case will not lead to the electricity inside it due to seal failure problem
The damage in pond 4.
Claims (10)
1. a kind of battery case, including：
Upper box (1), has：
Upper side wall (11)；And
Upper eaves portion (12), is connected to the lower end of upper side wall (11)；
Lower box (2) is fixedly connected on upper box (1) and has：
Lower wall (21)；And
Lower entablature (22), is connected to the upper end of lower wall (21)；
It is characterized in that,
The upper eaves portion (12) of upper box (1) at the same to upper side wall (11) week extend inwardly with outer circumferential；
The lower entablature (22) of lower box (2) at the same to lower wall (21) week extend inwardly with outer circumferential；
Battery case further includes：Sealed colloid (3) is set to the lower entablature of the upper eaves portion (12) and lower box (2) of upper box (1)
(22) it between and fixes, be tightly connected upper box (1) and lower box (2).
2. battery case according to claim 1, which is characterized in that
The upper eaves portion (12) of upper box (1) is to the week part that the extends inwardly and circumferential direction to upper side wall (11) of upper side wall (11)
The partial symmetry distribution that outside extends；
The lower entablature (22) of lower box (2) is to the week part that the extends inwardly and circumferential direction to lower wall (21) of lower wall (21)
The partial symmetry distribution that outside extends.
3. battery case according to claim 1, which is characterized in that the upper eaves portion (12) of upper box (1) is parallel to lower box
(2) lower entablature (22).
4. battery case according to claim 3, which is characterized in that upper box (1) also has：Upper reinforcing rib (13) is formed
Between upper eaves portion (12) and upper side wall (11) and connect eaves portion (12) and upper side wall (11) so that upper eaves portion (12) perpendicular to
Upper side wall (11).
5. battery case according to claim 3, which is characterized in that lower box (2) also has：Lower reinforcing rib (23) is formed
Between lower entablature (22) and lower wall (21) and connect lower entablature (22) and lower wall (21) so that lower entablature (22) perpendicular to
Lower wall (21).
6. battery case according to claim 1, which is characterized in that
Upper box (1) also has：Upper hem portion (14) is formed in circumferential inner edge (121) and/or the circumferential direction of upper eaves portion of eaves portion
Outer rim (122) simultaneously upwardly extends；
Correspondingly, lower box (2) also has：Lower hem portion (24) is formed in the circumferential inner edge (221) of lower entablature and/or lower eaves
The circumferential outer rim (222) in portion and the outer circumferential for upwardly extending the upper hem portion (14) formed and in upper box (1).
7. battery case according to claim 6, which is characterized in that sealed colloid (3) has：
Planar portions (31) between upper eaves portion (12) and the lower entablature (22) of lower box (2) in upper box (1) and are tightly connected
Upper eaves portion (12) and lower entablature (22)；And
Extension (32) between upper hem portion (14) and the lower hem portion (24) of lower box (2) in upper box (1) and seals
It connects upper hem portion (14) and lower hem portion (24).
8. battery case according to claim 1, which is characterized in that the circumferential inner edge (33) of sealed colloid and sealed colloid
Horizontal distance between circumferential outer rim (34) is 5mm~50mm.
9. battery case according to claim 1, which is characterized in that the thickness of sealed colloid (3) is 0.2mm~20mm.
10. battery case according to claim 1, which is characterized in that the material of sealed colloid (3) is polyurethane adhesive or silicon
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892114.7U CN207676974U (en) | 2017-12-29 | 2017-12-29 | Battery case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721892114.7U CN207676974U (en) | 2017-12-29 | 2017-12-29 | Battery case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676974U true CN207676974U (en) | 2018-07-31 |
Family
ID=62972681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721892114.7U Active CN207676974U (en) | 2017-12-29 | 2017-12-29 | Battery case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676974U (en) |
-
2017
- 2017-12-29 CN CN201721892114.7U patent/CN207676974U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |