CN210429890U - Battery pack shell structure and battery pack using same - Google Patents
Battery pack shell structure and battery pack using same Download PDFInfo
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- CN210429890U CN210429890U CN201921274382.1U CN201921274382U CN210429890U CN 210429890 U CN210429890 U CN 210429890U CN 201921274382 U CN201921274382 U CN 201921274382U CN 210429890 U CN210429890 U CN 210429890U
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- battery pack
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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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Abstract
The application provides a battery pack shell structure and a battery pack using the same, wherein the battery pack shell structure comprises a shell, a reinforcing piece, a sealing piece and a tray; the shell comprises a fixing part and a first connecting part, and the fixing part is connected with the first connecting part in a bending way; the sealing element is arranged between the shell and the tray, one surface of the sealing element is connected with the fixing part, the other surface of the sealing element is connected with the tray, and the reinforcing element is connected with one surface of the fixing part which is not connected with the sealing element; the reinforcing part extends to both sides respectively and has first turn-ups and second turn-ups, and first turn-ups is connected with first connecting portion, and the second turn-ups shelters from the sealing member. Therefore, the first flanging of the reinforcing part of the battery pack shell structure provided by the embodiment of the application is upward and matched with the shell, so that the strength of the reinforcing part can be increased; the second turn-ups is downward, shelters from the sealing member, makes it be unlikely to directly expose in high temperature radiation and naked light, slows down sealed ageing speed of filling up, has prolonged sealed the life-span of filling up, has promoted whole package sealing performance.
Description
Technical Field
The application relates to the technical field of battery packs, in particular to a battery pack shell structure and a battery pack using the same.
Background
At the present stage, the power battery has higher requirements on sealing protection due to the special high-voltage safety requirement of the power battery.
The sealing strip of the battery pack of the existing automobile is arranged between an upper shell and a lower tray, a pressing strip and the upper shell are connected with the lower tray through bolts, the pressing strip is used for reinforcing the sealing surface of the upper shell, and the sealing surface is uniformly stressed when the bolts are tightened so as to ensure the sealing performance of the whole pack.
In the design of the existing battery pack shell, a common pressing strip is designed as a flat plate, and when an exhaust pipe passes through a side sealing structure of a battery pack, high-temperature radiation heat has influence on a sealing gasket, so that the sealing gasket is heated for a long time, is aged at an accelerated speed, and influences the sealing property of the whole battery pack. When the fire occurs, external flame directly contacts the sealing gasket, the sealing gasket is burnt out in a short time, and the flame spreads into the battery pack to damage the internal structure of the battery pack.
Disclosure of Invention
The application aims to solve the technical problem that the sealing performance of the battery pack is poor.
In order to solve the technical problem, the embodiment of the application discloses a battery pack shell structure, which comprises a shell, a reinforcing piece, a sealing piece and a tray;
the shell comprises a fixing part and a first connecting part, and the fixing part is connected with the first connecting part in a bending way;
the sealing element is arranged between the shell and the tray, one surface of the sealing element is connected with the fixing part, the other surface of the sealing element is connected with the tray, and the reinforcing element is connected with one surface of the fixing part which is not connected with the sealing element;
the reinforcing part extends to both sides respectively and has first turn-ups and second turn-ups, and first turn-ups is connected with first connecting portion, and the second turn-ups shelters from the sealing member.
Further, the battery pack shell structure further comprises a connecting piece, and the reinforcing piece, the fixing part, the sealing piece and the tray are sequentially connected through the connecting piece.
Furthermore, a second connecting part is arranged on the reinforcing part, a third connecting part is arranged on the fixing part, a fourth connecting part is arranged on the sealing part, and a fifth connecting part is arranged on the tray;
the second connecting part, the third connecting part, the fourth connecting part and the fifth connecting part are sequentially connected through connecting pieces.
Further, the connecting piece includes at least one bolt, and second connecting portion, third connecting portion, fourth connecting portion and fifth connecting portion are the connecting hole with bolt complex.
Further, the sealing member is a gasket.
Further, the reinforcing member is a bead.
Furthermore, the pressing strip is provided with an installation part.
Further, first turn-ups is connected with the laminating of first connecting portion.
Optionally, the first flange is fixedly connected with the first connecting portion.
The embodiment of the application also provides a battery pack, which comprises a battery pack shell structure.
By adopting the technical scheme, the application has the following beneficial effects:
the reinforcing piece of the battery pack shell structure provided by the embodiment of the application is provided with the first flanging and the second flanging, and the first flanging is upward and matched with the shell, so that the strength of the reinforcing piece can be increased; the second flanging is downward and shields the sealing element, so that the sealing element is not directly exposed to high-temperature radiation and open fire, the aging speed of the sealing element is reduced, the service life of the sealing gasket is prolonged, and the sealing performance of the whole bag is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a battery pack case structure according to an embodiment of the present disclosure;
fig. 2 is a schematic view illustrating a fitting relationship between a reinforcing member and a housing of a battery pack housing structure according to an embodiment of the present invention;
fig. 3 is a schematic view of a mounting portion on a reinforcing member of a battery pack case structure according to an embodiment of the present application;
the following is a supplementary description of the drawings:
1-a shell; 11-a fixed part; 12-a first connection; 2-a reinforcement; 21-a first flanging; 22-second flanging; 3-a seal; 4-a tray; 5-mounting part.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a battery pack case structure according to an embodiment of the present disclosure, and the battery pack case structure in fig. 1 includes a case 1, a reinforcement 2, a sealing member 3, and a tray 4; the shell 1 comprises a fixing part 11 and a first connecting part 12, wherein the fixing part 11 and the first connecting part 12 are connected in a bending way;
the sealing element 3 is arranged between the shell 1 and the tray 4, one surface of the sealing element 3 is connected with the fixing part 11 of the shell 1, the other surface of the sealing element 3 is connected with the tray 4, and the reinforcing element 2 is connected with the surface of the fixing part 11 of the shell 1 which is not connected with the sealing element 3;
the reinforcing part 2 is respectively extended to two sides to form a first flanging 21 and a second flanging 22, the first flanging 21 is connected with the first connecting part 12, and the second flanging 22 shields the sealing part 3. Wherein, the sealing element 3 can be a sealing gasket, and the reinforcing element 2 can be a pressing strip.
In the embodiment of the present application, there are various schemes for the first flange 21 and the first connecting portion 12 to be connected in a matching manner, and two of the schemes that can be implemented are introduced below:
in an implementation scheme, the first flange 21 and the first connecting portion 12 may be in a fitting connection; in another practical scheme, the first turned-over edge 21 and the first connecting portion 12 may be fixedly connected, optionally, the first turned-over edge 21 and the first connecting portion 12 may be fixedly connected by a fastener such as a bolt, optionally, the first turned-over edge 21 and the first connecting portion 12 may also be connected by welding.
Fig. 2 is a schematic diagram illustrating a mating relationship between a stiffener 2 and a housing 1 of a battery pack housing structure according to an embodiment of the present disclosure; as shown in figure 2, the first flanging 21 at the inner side of the batten is upward and matched with the shell 1, so that the strength of the batten is increased, and the mounting strength of the whole package sealing surface is ensured.
As shown in fig. 1 and 2, the second flanging 22 at the outer side of the batten faces downwards to shield the sealing gasket from being directly exposed to high-temperature radiation and open fire, so that the aging speed of the sealing gasket can be slowed down, the service life of the sealing gasket can be prolonged, and the sealing performance of the whole bag can be enhanced; meanwhile, the pressing strip is directly exposed in the environment outside the vehicle, if a fire happens, the pressing strip prevents flame from directly contacting the sealing gasket, the burning time of the sealing gasket is effectively delayed, and the safety of the battery pack is enhanced. In the embodiment of the application, the battery pack shell structure further comprises a connecting piece, and the reinforcing piece 2, the fixing part 11, the sealing piece 3 and the tray 4 are sequentially connected through the connecting piece. The sealing element 3 is arranged between the upper shell 1 and the lower tray 4, the pressing strip and the upper shell 1 are connected with the lower tray 4 through the connecting piece, the sealing gasket is compressed, and the requirement of the sealing property of the whole package is met.
The flanging has little influence on the manufacturing process of the pressing strip, does not need to add extra coating, does not need high precision, has slight influence on the cost and the manufacturing period, and realizes multiple purposes of one material.
In the embodiment of the application, the reinforcing part 2 is provided with a second connecting part, the fixing part 11 is provided with a third connecting part, the sealing part 3 is provided with a fourth connecting part, and the tray 4 is provided with a fifth connecting part;
the second connecting part, the third connecting part, the fourth connecting part and the fifth connecting part are sequentially connected through connecting pieces.
In the embodiment of the application, the connecting piece comprises a plurality of bolts, and the second connecting portion, the third connecting portion, the fourth connecting portion and the fifth connecting portion are connecting holes matched with the bolts.
In the embodiment of the present application, fig. 3 is a schematic view of the mounting portion 5 on the reinforcement 2 of the battery pack case structure according to the embodiment of the present application, and as shown in fig. 3, the mounting portion 5 is provided on the pressing bar, the mounting portion 5 may be a mounting hole, the number of the mounting holes may be 3, and the mounting hole may be used for mounting a heat shield.
The embodiment of the application also provides a battery pack, which comprises a battery pack shell structure.
Based on the above, several embodiments are described below.
Example 1:
referring to fig. 1, fig. 1 is a schematic structural diagram of a battery pack case structure according to embodiment 1 of the present application, and the battery pack case structure in fig. 1 includes a case 1, a reinforcement 2, a sealing member 3, and a tray 4; the shell 1 comprises a fixing part 11 and a first connecting part 12, wherein the fixing part 11 and the first connecting part 12 are connected in a bending way;
the sealing element 3 is arranged between the shell 1 and the tray 4, one surface of the sealing element 3 is connected with the fixing part 11 of the shell 1, the other surface of the sealing element 3 is connected with the tray 4, and the reinforcing element 2 is connected with the surface of the fixing part 11 of the shell 1 which is not connected with the sealing element 3;
the reinforcing part 2 is respectively extended to two sides to form a first flanging 21 and a second flanging 22, the first flanging 21 is connected with the first connecting part 12, and the second flanging 22 shields the sealing part 3. Wherein, the sealing element 3 can be a sealing gasket, and the reinforcing element 2 can be a pressing strip.
In embodiment 1 of the present application, the first flange 21 and the first connecting portion 12 may be in a joint connection;
fig. 2 is a schematic view illustrating a fitting relationship between a reinforcing member 2 and a housing 1 of a battery pack housing structure according to embodiment 1 of the present application; as shown in figure 2, the first flanging 21 at the inner side of the batten is upward and matched with the shell 1, so that the strength of the batten is increased, and the mounting strength of the whole package sealing surface is ensured.
As shown in fig. 1 and 2, the second flanging 22 at the outer side of the batten faces downwards to shield the sealing gasket from being directly exposed to high-temperature radiation and open fire, so that the aging speed of the sealing gasket can be slowed down, the service life of the sealing gasket can be prolonged, and the sealing performance of the whole bag can be enhanced; meanwhile, the pressing strip is directly exposed in the environment outside the vehicle, if a fire happens, the pressing strip prevents flame from directly contacting the sealing gasket, the burning time of the sealing gasket is effectively delayed, and the safety of the battery pack is enhanced. In the embodiment of the application, the battery pack shell structure further comprises a connecting piece, and the reinforcing piece 2, the fixing part 11, the sealing piece 3 and the tray 4 are sequentially connected through the connecting piece. The sealing element 3 is arranged between the upper shell 1 and the lower tray 4, the pressing strip and the upper shell 1 are connected with the lower tray 4 through the connecting piece, the sealing gasket is compressed, and the requirement of the sealing property of the whole package is met.
The flanging has little influence on the manufacturing process of the pressing strip, does not need to add extra coating, does not need high precision, has slight influence on the cost and the manufacturing period, and realizes multiple purposes of one material.
In embodiment 1 of the present application, the reinforcement 2 is provided with a second connecting portion, the fixing portion 11 is provided with a third connecting portion, the sealing member 3 is provided with a fourth connecting portion, and the tray 4 is provided with a fifth connecting portion;
the second connecting part, the third connecting part, the fourth connecting part and the fifth connecting part are sequentially connected through connecting pieces.
In this application embodiment 1, the connecting piece includes a plurality of bolts, and second connecting portion, third connecting portion, fourth connecting portion and fifth connecting portion are the connecting hole with bolt complex.
In embodiment 1 of the present application, fig. 3 is a schematic view of an installation portion 5 on a reinforcement 2 of a battery pack case structure according to an embodiment of the present application, and as shown in fig. 3, the installation portion 5 is provided on the pressing strip, the installation portion 5 may be an installation hole, the number of the installation holes may be 3, and the installation hole may be used for installing a heat shield.
Embodiment 1 of this application still provides a battery package, including battery package shell structure.
Example 2:
referring to fig. 1, fig. 1 is a schematic structural diagram of a battery pack case structure according to embodiment 2 of the present application, and the battery pack case structure in fig. 1 includes a case 1, a reinforcement 2, a sealing member 3, and a tray 4; the shell 1 comprises a fixing part 11 and a first connecting part 12, wherein the fixing part 11 and the first connecting part 12 are connected in a bending way;
the sealing element 3 is arranged between the shell 1 and the tray 4, one surface of the sealing element 3 is connected with the fixing part 11 of the shell 1, the other surface of the sealing element 3 is connected with the tray 4, and the reinforcing element 2 is connected with the surface of the fixing part 11 of the shell 1 which is not connected with the sealing element 3;
the reinforcing part 2 is respectively extended to two sides to form a first flanging 21 and a second flanging 22, the first flanging 21 is connected with the first connecting part 12, and the second flanging 22 shields the sealing part 3. Wherein, the sealing element 3 can be a sealing gasket, and the reinforcing element 2 can be a pressing strip.
In embodiment 2 of the present application, the first flange 21 and the first connecting portion 12 may be fixedly connected, and the first flange 21 and the first connecting portion 12 may be connected by welding.
Fig. 2 is a schematic view illustrating a matching relationship between a reinforcing member 2 and a housing 1 of a battery pack housing structure according to embodiment 2 of the present application; as shown in figure 2, the first flanging 21 at the inner side of the batten is upward and matched with the shell 1, so that the strength of the batten is increased, and the mounting strength of the whole package sealing surface is ensured.
As shown in fig. 1 and 2, the second flanging 22 at the outer side of the batten faces downwards to shield the sealing gasket from being directly exposed to high-temperature radiation and open fire, so that the aging speed of the sealing gasket can be slowed down, the service life of the sealing gasket can be prolonged, and the sealing performance of the whole bag can be enhanced; meanwhile, the pressing strip is directly exposed in the environment outside the vehicle, if a fire happens, the pressing strip prevents flame from directly contacting the sealing gasket, the burning time of the sealing gasket is effectively delayed, and the safety of the battery pack is enhanced. In the embodiment of the application, the battery pack shell structure further comprises a connecting piece, and the reinforcing piece 2, the fixing part 11, the sealing piece 3 and the tray 4 are sequentially connected through the connecting piece. The sealing element 3 is arranged between the upper shell 1 and the lower tray 4, the pressing strip and the upper shell 1 are connected with the lower tray 4 through the connecting piece, the sealing gasket is compressed, and the requirement of the sealing property of the whole package is met.
The flanging has little influence on the manufacturing process of the pressing strip, does not need to add extra coating, does not need high precision, has slight influence on the cost and the manufacturing period, and realizes multiple purposes of one material.
In embodiment 2 of the present application, the reinforcement 2 is provided with a second connecting portion, the fixing portion 11 is provided with a third connecting portion, the sealing member 3 is provided with a fourth connecting portion, and the tray 4 is provided with a fifth connecting portion;
the second connecting part, the third connecting part, the fourth connecting part and the fifth connecting part are sequentially connected through connecting pieces.
In this application embodiment 2, the connecting piece includes a plurality of bolts, and second connecting portion, third connecting portion, fourth connecting portion and fifth connecting portion are the connecting hole with bolt complex.
In embodiment 2 of the present application, fig. 3 is a schematic view of an installation portion 5 on a reinforcement 2 of a battery pack case structure according to an embodiment of the present application, and as shown in fig. 3, the installation portion 5 is provided on the pressing strip, the installation portion 5 may be an installation hole, the number of the installation holes may be 3, and the installation hole may be used for installing a heat shield.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A battery can shell structure is characterized by comprising a shell (1), a reinforcing piece (2), a sealing piece (3) and a tray (4);
the shell (1) comprises a fixing part (11) and a first connecting part (12), wherein the fixing part (11) is connected with the first connecting part (12) in a bending way;
the sealing element (3) is arranged between the shell (1) and the tray (4), one surface of the sealing element (3) is connected with the fixing part (11), the other surface of the sealing element (3) is connected with the tray (4), and the reinforcing element (2) is connected with the surface, which is not connected with the sealing element (3), of the fixing part (11);
the reinforcing piece (2) extends to two sides to form a first flanging (21) and a second flanging (22), the first flanging (21) is connected with the first connecting portion (12), and the second flanging (22) shields the sealing piece (3).
2. The battery pack case structure according to claim 1, further comprising a connecting member by which the reinforcing member (2), the fixing portion (11), the sealing member (3), and the tray (4) are connected in order.
3. The battery pack housing structure according to claim 2, wherein a second connecting portion is provided on the reinforcement (2), a third connecting portion is provided on the fixing portion (11), a fourth connecting portion is provided on the sealing member (3), and a fifth connecting portion is provided on the tray (4);
the second connecting part, the third connecting part, the fourth connecting part and the fifth connecting part are sequentially connected through the connecting piece.
4. The battery pack housing structure of claim 3, wherein the connection member comprises at least one bolt, and the second connection portion, the third connection portion, the fourth connection portion, and the fifth connection portion are connection holes to which the bolt is fitted.
5. The battery pack case structure according to claim 1, wherein the sealing member (3) is a gasket.
6. The battery pack case structure according to claim 1, wherein the reinforcement (2) is a bead.
7. The battery pack case structure according to claim 6, wherein the bead is provided with a mounting portion (5).
8. The battery pack case structure according to claim 1, wherein the first flange (21) is attached to the first connecting portion (12).
9. The battery pack case structure according to claim 1, wherein the first flange (21) is fixedly connected to the first connecting portion (12).
10. A battery pack comprising the battery pack case structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274382.1U CN210429890U (en) | 2019-08-07 | 2019-08-07 | Battery pack shell structure and battery pack using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274382.1U CN210429890U (en) | 2019-08-07 | 2019-08-07 | Battery pack shell structure and battery pack using same |
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| Publication Number | Publication Date |
|---|---|
| CN210429890U true CN210429890U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921274382.1U Active CN210429890U (en) | 2019-08-07 | 2019-08-07 | Battery pack shell structure and battery pack using same |
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| CN (1) | CN210429890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023165411A1 (en) * | 2022-03-03 | 2023-09-07 | 宁德时代新能源科技股份有限公司 | Battery box body, battery and electrical device |
-
2019
- 2019-08-07 CN CN201921274382.1U patent/CN210429890U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023165411A1 (en) * | 2022-03-03 | 2023-09-07 | 宁德时代新能源科技股份有限公司 | Battery box body, battery and electrical device |
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