CN217158430U - Battery package seal structure, battery package and vehicle - Google Patents
Battery package seal structure, battery package and vehicle Download PDFInfo
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- CN217158430U CN217158430U CN202122481469.XU CN202122481469U CN217158430U CN 217158430 U CN217158430 U CN 217158430U CN 202122481469 U CN202122481469 U CN 202122481469U CN 217158430 U CN217158430 U CN 217158430U
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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 disclosed embodiment provides a battery pack sealing structure, a battery pack and a vehicle; the battery pack sealing structure comprises a shell, an upper cover and a sealing assembly; the upper cover is covered on the shell and forms a sealed cavity with the shell in an enclosing manner; the sealing assembly is arranged in the sealing cavity; the sealing assembly comprises a waterproof plate and a sealing ring, the waterproof plate is connected with the shell, an annular groove is formed in the side portion of the waterproof plate along the circumferential direction, the sealing ring is arranged in the annular groove, and the side portion of the sealing ring is attached to the shell to form extrusion sealing. The disclosed embodiments provide a solution for a sealing structure of a battery pack for a vehicle, in which a compression sealing structure is formed by a side portion of a sealing ring and a side wall of a case of the battery pack, which can form a stable sealing interface, and contribute to improving the sealing performance of the battery pack, thereby providing a waterproof effect to the battery pack.
Description
Technical Field
The embodiment of the disclosure relates to the technical field of energy storage devices, in particular to a battery pack sealing structure, a battery pack and a vehicle.
Background
The battery pack is the most important energy supply mode of the electric vehicle. Because the electric core component in the battery pack mainly comprises chemicals, the electric core component cannot be contacted with water so as to avoid causing short circuit inside the battery pack and influence on the power of the electric vehicle. For an electric vehicle, taking a common shared electric bicycle as an example, a battery pack on the electric vehicle is usually arranged below a vehicle seat, and because the vehicle is parked outdoors for a long time, if the vehicle meets rainy seasons, the battery pack is easily soaked by water in a low-lying position of a road, so that water enters the interior of the battery pack. In view of this, it is necessary to design the waterproof sealing property of the battery pack.
In the prior art, a battery pack generally comprises an aluminum tube and a tube cover, wherein the tube cover is covered on the aluminum tube and is connected with the aluminum tube through a fastener, and in order to improve the sealing effect of the battery pack, a sealing rubber ring is mainly clamped between the tube cover and the aluminum tube in the current scheme, namely the sealing rubber ring is clamped between the butt joint surfaces of the tube cover and the aluminum tube. However, because the wall thickness of the aluminum cylinder is relatively thin (usually 2.5mm), the surface for supporting the sealing rubber ring is relatively narrow, which results in that the width of the sealing rubber ring cannot be designed to be large, and a certain dimensional tolerance still exists in assembly, which results in that the sealing contact surface between the sealing rubber ring and the aluminum cylinder is small in actual production, which affects the stability of the sealing surface and causes poor sealing effect. In addition, the arrangement position of the existing sealing rubber ring also can cause the situation that the cylinder cover and the aluminum cylinder cannot be aligned accurately, and the water inlet and the sealing performance of the battery pack are influenced.
SUMMERY OF THE UTILITY MODEL
An object of this disclosure is to provide a new technical scheme of battery package seal structure, battery package and vehicle to solve the leakproofness of current battery package not good, lead to the problem that the battery package is intake easily.
In a first aspect, the present disclosure provides a battery pack sealing structure. The battery pack sealing structure includes:
a housing;
the upper cover is covered on the shell and forms a sealed cavity with the shell in an enclosing manner; and the number of the first and second groups,
a seal assembly disposed within the seal cavity;
the sealing assembly comprises a waterproof plate and a sealing ring, the waterproof plate is connected with the shell, an annular groove is formed in the side portion of the waterproof plate along the circumferential direction, the sealing ring is arranged in the annular groove, and the side portion of the sealing ring is attached to the shell to form extrusion sealing.
Optionally, a first rib is arranged on a side portion of the sealing ring, and the first rib is fitted to the inner wall of the casing to form extrusion sealing.
Optionally, the first rib is integrally formed on the sealing ring.
Optionally, the first ribs are annularly arranged and are arranged in at least one;
the first convex rib and the surface of the shell which is attached to each other are of arc structures.
Optionally, the sealing ring is clamped in the annular groove and forms an interference fit with the annular groove.
Optionally, at least one of the upper surface and the lower surface of the sealing ring is provided with a second rib, and the second rib is fitted with the inner wall of the annular groove to form extrusion sealing.
Optionally, the second bead is integrally formed on the sealing ring.
Optionally, the second ribs are in a convex point shape and provided with a plurality of second ribs;
the second ribs are arranged on at least one of the upper surface and the lower surface of the sealing ring at intervals.
Optionally, an annular gap portion is arranged on a side portion of the waterproof plate along the circumferential direction, and the annular gap portion is located at the upper portion of the annular groove;
the annular gap part and the shell are enclosed to form a glue injection groove.
Optionally, the glue injection groove is filled with sealant.
Optionally, the annular gap portion has a stepped structure.
In a second aspect, the present disclosure provides a battery pack. The battery pack includes:
the battery pack sealing structure as described above; and
the electric core assembly is arranged in the sealing cavity.
In a third aspect, the present disclosure provides a vehicle. The vehicle includes:
a vehicle body; and the number of the first and second groups,
the battery pack as described above, which is provided below the seat of the vehicle body.
The beneficial effects of this disclosed embodiment lie in:
the embodiment of the disclosure provides a battery pack sealing scheme for an electric vehicle, and a squeezing sealing structure is formed by the side part of a sealing ring and the side wall of a shell of a battery pack, so that a stable sealing surface can be formed, and the sealing performance of the battery pack is improved. Because the sealing performance of the battery pack is good, the water inlet of the battery pack can be effectively prevented, and the safety of the battery pack during use and the service life of the battery pack are improved.
Other features of the present description and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and together with the description, serve to explain the principles of the specification.
Fig. 1 is an exploded schematic view of a battery pack sealing structure provided in an embodiment of the present disclosure.
Fig. 2 is a partial structural schematic view of a seal assembly of a battery pack sealing structure provided in an embodiment of the present disclosure.
Fig. 3 is a schematic partial structural view of a sealing structure of a battery pack according to an embodiment of the present disclosure.
Fig. 4 is a second schematic view of a partial structure of a sealing structure of a battery pack according to an embodiment of the present disclosure.
Fig. 5 is a schematic partial structural view of a waterproof plate of a sealing structure of a battery pack according to an embodiment of the present disclosure.
Fig. 6 is a second schematic partial structural view of a waterproof plate of a battery pack sealing structure according to an embodiment of the present disclosure.
Fig. 7 is a schematic structural diagram of a seal ring of a battery pack sealing structure provided in an embodiment of the present disclosure.
Fig. 8 is a partial schematic structural view of a sealing ring of a battery pack sealing structure according to an embodiment of the present disclosure.
Fig. 9 is a second schematic partial structural view of a sealing ring of a battery pack sealing structure according to an embodiment of the present disclosure.
Reference numerals:
1. a housing; 2. an upper cover; 3. a waterproof sheet; 31. an annular groove; 32. an annular notch portion; 4. a seal ring; 41. a first rib; 42. and a second rib.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
According to an embodiment of the present application, there is provided a battery pack sealing structure, as shown in fig. 1 to 6, including: the device comprises a shell 1, an upper cover 2 and a sealing assembly; the upper cover 2 is covered on the shell 1 and forms a sealed cavity with the shell 1 in an enclosing manner; the sealing assembly is arranged in the sealing cavity; wherein, seal assembly includes waterproof board 3 and sealing washer 4, waterproof board 3 with casing 1 is connected, be provided with annular groove 31 along circumference on the lateral part of waterproof board 3, sealing washer 4 set up in the annular groove 31, the lateral part of sealing washer 4 with casing 1 laminates mutually and forms extrusion seal.
The sealing assembly adopts a mode of combining a waterproof plate 3 and a sealing ring 4; also, side seals are employed in aspects of the present disclosure. That is, the waterproof sheet 3 fixes and supports the seal ring 4 in the housing 1, and the side portion of the seal ring 4 and the side wall of the housing 1 are pressed to form a seal.
The embodiment of the present disclosure provides a battery pack sealing scheme for an electric vehicle, and a compression sealing structure is formed by the side portion of the sealing ring 4 and the side wall of the housing 1 of the battery pack, so that a stable sealing interface can be formed, and the improvement of the sealing performance of the battery pack is facilitated. The battery pack has good sealing performance, so that the water can be effectively prevented from entering the battery pack, and the safety of the battery pack in use and the service life of the battery pack are improved.
In addition, the sealing structure of the battery pack provided by the embodiment of the disclosure can ensure good sealing performance even if the battery pack vibrates for a long time when the sealing structure is applied to the battery pack.
Wherein, the shell 1 is made of metal aluminum.
For example, the housing 1 is an aluminum cylinder, and an opening is provided at an upper end of the aluminum cylinder.
Wherein, the upper cover 2 is made of plastic materials.
For example, the upper cover 2 is a plastic upper cover, and the plastic upper cover covers the opening of the aluminum cylinder. The plastic upper cover and the aluminum barrel are enclosed to form an external structure of the battery pack.
Wherein the flashing 3 can form a fixed connection with the housing 1, for example by means of fasteners.
Such as bolts, screws, etc.
In some examples of the present disclosure, as shown in fig. 3, 4 and 7 to 9, a first rib 41 is provided on a side portion of the sealing ring 4, and the first rib 41 is engaged with an inner wall of the housing 1 and forms a press seal.
That is, in the solution of the present disclosure, the sealing ring 4 is embedded in the annular groove 31 on the side portion of the waterproof board 3, and after the waterproof board 3 is installed in the housing 1, the raised first rib 41 is provided on the side portion of the sealing ring 4, and a sealing structure is formed by pressing the first rib 41 and the inner wall of the housing 1. The sealing structure formed by the side extrusion has better stability of the sealing interface.
When the waterproof board 3 is installed in the housing 1, the annular groove 31 on the waterproof board 3 and the inner wall of the housing 1 may enclose an annular space. In the design of the present disclosure, the sealing ring 4 is disposed in the annular space in an interference fit manner, so as to form a good sealing structure. Even if the battery pack vibrates for a long time, good sealing performance can be ensured to prevent the battery pack from water.
In some examples of the present disclosure, as shown in fig. 8 and 9, the first rib 41 is integrally formed on the seal ring 4.
The integrally formed structure has the characteristic of attractive appearance, the first convex rib 41 and the sealing ring 4 are combined more firmly, and the production and the processing are simpler.
In some examples of the present disclosure, as shown in fig. 3, 4 and 9, the first ribs 41 are annularly disposed and disposed at least one; the first rib 41 and the surface of the housing 1 are in an arc structure.
The first convex rib 41 extending outwards is arranged on the outward surface of the side part of the sealing ring 4, and the first convex rib 41 is matched with the side wall of the shell 1 to mainly play a role of sealing, which is equivalent to a sealing convex rib.
The first ribs 41 are, for example, annularly disposed on a side portion of the sealing ring 4, at this time, the first ribs 41 may be, for example, two, and the two first ribs 41 are parallel to each other and are disposed at intervals. The sealing effect can be improved by two first ribs 41.
Of course, the first ribs 41 are not limited to the structural form and number in the above examples, as long as they can form a sealing structure after being pressed with the side wall of the housing 1, and the specific structure and number are not limited in this disclosure.
In some examples of the present disclosure, as shown in fig. 4, 8 and 9, the sealing ring 4 is snapped into the annular groove 31 and forms an interference fit with the annular groove 31.
In this way, the sealing ring 4 can be stably arranged in the annular groove 31, that is, the sealing ring 4 can be stably connected with the waterproof board 3, and the sealing ring and the waterproof board are convenient to assemble and disassemble.
That is, the height dimension of the seal ring 4 is designed to be larger than the groove width of the annular groove 31, the seal ring 4 is made of an elastic material, for example, and can be elastically deformed to a certain extent by being pressed to be inserted into the annular groove 31, and then can be stably inserted into the annular groove 31 by appropriately restoring the deformation, and is not easily separated from the annular groove 31.
In some examples of the present disclosure, as shown in fig. 3, 4 and 7 to 9, a second rib 42 is provided on at least one of the upper surface and the lower surface of the sealing ring 4, and the second rib 42 is engaged with the inner wall of the annular groove 31 to form a press seal.
That is, in the solution of the present disclosure, the sealing ring 4 is further provided with a second rib 42, and the second rib 42 is mainly used to arrange the sealing ring 4 in the annular groove 31 of the waterproof board 3 in the above interference fit manner. In practice, the second rib 42 is a fixed rib. The second convex rib 42 on the sealing ring 4 can tightly clamp the annular groove 31 in an interference fit manner, so that the reliability of the assembly of the sealing ring 4 is ensured, and the sealing ring 4 cannot fall off.
In some examples of the present disclosure, as shown in fig. 8 and 9, the second rib 42 is integrally formed on the seal ring 4.
The integrally formed structure has the characteristic of attractive appearance, the second convex rib 42 is combined with the sealing ring 4 more firmly, and the production and the processing are simpler.
That is, the first rib 41 corresponds to a sealing rib, the second rib 42 corresponds to a fixing rib, and the first rib 41, the second rib 42, and the seal ring 4 are integrated.
In some examples of the present disclosure, as shown in fig. 3, 4 and 7 to 9, the second bead 42 is in a shape of a dot and provided in plurality; the second ribs 42 are provided at intervals on at least one of the upper surface and the lower surface of the seal ring 4.
In the example of the present disclosure, the second rib 42 may be provided only on the upper surface of the seal ring 4, or may be provided only on the lower surface of the seal ring 4.
More preferably, the second ribs 42 are disposed on both the upper and lower surfaces of the sealing ring 4, so that the sealing ring 4 can be more stably embedded in the annular groove 31, and the sealing ring 4 is not easy to fall out.
In some examples of the present disclosure, as shown in fig. 3 to 6, an annular notch portion 32 is provided on a side portion of the waterproof sheet 3 in a circumferential direction, and the annular notch portion 32 is located at an upper portion of the annular groove 31; the annular notch 32 and the housing 1 enclose a glue injection groove.
And the glue injection groove is filled with sealant.
After the waterproof board 3 provided by the embodiment of the present disclosure is installed in the housing 1, an annular glue injection groove may be formed between the waterproof board and the sidewall of the housing 1, and the glue injection groove may be filled with a sealant.
The annular notch 32 has a stepped structure.
Of course, the annular gap 32 may have other structural forms as long as it can enclose a space capable of accommodating sealant or potting sealant with the side wall of the housing 1, and this disclosure does not specifically limit this space.
According to the battery pack sealing structure provided by the embodiment of the disclosure, the sealing assembly formed by the waterproof plate 3 and the sealing ring 4 is arranged in the shell 1, and the first convex rib 41 on the side part of the sealing ring 4 is used for extruding and sealing with the inner wall of the shell 1, so that a first sealing structure is formed. And locking the waterproof plate 3 to the shell 1 by adopting a fastener, and pouring sealant or pouring sealant into the sealant pouring groove, so that a second sealing structure is formed. Therefore, according to the scheme provided by the disclosure, a double-sealing design is provided for the sealing structure of the battery pack, the waterproof capability of the battery pack is improved, and the battery pack assets are protected.
According to another aspect of the present disclosure, a battery pack is provided.
The battery pack includes: the battery pack sealing structure as described above; and the electric core assembly is arranged in the sealing cavity.
The battery pack sealing structure can form good sealing protection for the electric core assembly inside, prevents water from entering, and improves the waterproof performance of the battery pack.
According to yet another aspect of the present disclosure, a vehicle is provided.
The vehicle includes: a vehicle body; and the battery pack is arranged below the seat of the vehicle body.
The vehicle is, for example, an electric vehicle.
Further, the vehicle is, for example, a shared electric vehicle.
The battery pack is the most important energy supply mode of the electric vehicle. The battery pack provided by the embodiment of the disclosure has good sealing performance, and the situation that the battery pack is filled with water can be avoided. Even if the vehicle is parked outdoors for a long time in rainy season, the battery pack does not have the phenomenon of water inflow.
In the above embodiments, the differences between the embodiments are described in emphasis, and different optimization features between the embodiments can be combined to form a better embodiment as long as the differences are not contradictory, and further description is omitted here in consideration of brevity of the text.
Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (13)
1. A battery pack sealing structure, comprising:
a housing (1);
the upper cover (2) is arranged on the shell (1) in a covering mode, and the upper cover (2) and the shell (1) enclose to form a sealed cavity; and (c) a second step of,
a seal assembly disposed within the seal cavity;
wherein, seal assembly includes waterproof board (3) and sealing washer (4), waterproof board (3) with casing (1) is connected, be provided with annular groove (31) along circumference on the lateral part of waterproof board (3), sealing washer (4) set up in annular groove (31), the lateral part of sealing washer (4) with casing (1) is laminated mutually and is formed extrusion seal.
2. The battery pack sealing structure according to claim 1, wherein a first rib (41) is provided on a side portion of the sealing ring (4), and the first rib (41) is engaged with an inner wall of the case (1) and forms a press seal.
3. The battery pack sealing structure according to claim 2, wherein the first rib (41) is integrally formed on the seal ring (4).
4. The battery pack sealing structure according to claim 2, wherein the first bead (41) is annularly provided and provided in at least one;
the surface of the first convex rib (41) which is attached to the shell (1) is of an arc-shaped structure.
5. The battery pack sealing structure according to claim 1, wherein the sealing ring (4) is clamped in the annular groove (31) and forms an interference fit with the annular groove (31).
6. The battery pack sealing structure according to claim 1, wherein a second rib (42) is provided on at least one of the upper surface and the lower surface of the sealing ring (4), the second rib (42) engaging with the inner wall of the annular groove (31) and forming a press seal.
7. The battery pack sealing structure according to claim 6, wherein the second rib (42) is integrally formed on the sealing ring (4).
8. The battery pack sealing structure according to claim 7, wherein the second bead (42) is in the form of a dot and provided in plurality;
the second ribs (42) are arranged at intervals on at least one of the upper surface and the lower surface of the sealing ring (4).
9. The battery pack sealing structure according to claim 1, wherein an annular notch portion (32) is provided on a side portion of the waterproof sheet (3) in a circumferential direction, and the annular notch portion (32) is located at an upper portion of the annular groove (31);
the annular gap part (32) and the shell (1) are enclosed to form a glue injection groove.
10. The battery pack sealing structure of claim 9, wherein the glue injection groove is filled with a sealant.
11. The battery pack sealing structure according to claim 9, wherein the annular notch portion (32) is a stepped structure.
12. A battery pack, comprising:
a battery pack sealing structure according to any one of claims 1 to 11; and
the electric core assembly is arranged in the sealing cavity.
13. A vehicle, characterized by comprising:
a vehicle body; and the number of the first and second groups,
the battery pack according to claim 12, which is provided below a seat of the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481469.XU CN217158430U (en) | 2021-10-14 | 2021-10-14 | Battery package seal structure, battery package and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122481469.XU CN217158430U (en) | 2021-10-14 | 2021-10-14 | Battery package seal structure, battery package and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217158430U true CN217158430U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122481469.XU Active CN217158430U (en) | 2021-10-14 | 2021-10-14 | Battery package seal structure, battery package and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217158430U (en) |
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2021
- 2021-10-14 CN CN202122481469.XU patent/CN217158430U/en active Active
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