CN220065897U - Sealing structure, battery box and battery pack - Google Patents
Sealing structure, battery box and battery pack Download PDFInfo
- Publication number
- CN220065897U CN220065897U CN202320754463.1U CN202320754463U CN220065897U CN 220065897 U CN220065897 U CN 220065897U CN 202320754463 U CN202320754463 U CN 202320754463U CN 220065897 U CN220065897 U CN 220065897U
- Authority
- CN
- China
- Prior art keywords
- upper cover
- plastic upper
- metal ring
- box body
- fastener
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 59
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000000741 silica gel Substances 0.000 description 12
- 229910002027 silica gel Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 210000003781 tooth socket Anatomy 0.000 description 5
- 238000004512 die casting Methods 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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 utility model relates to the field of batteries, in particular to a sealing structure, a battery box body and a battery pack, wherein the sealing structure comprises a plastic upper cover and a fastener, the plastic upper cover is provided with a through mounting hole, a metal ring is placed in the mounting hole, the fastener comprises a flange edge and a rod body, the rod body penetrates through the metal ring, and the metal ring is abutted to the flange edge. Through setting up the mounting hole at the plastic upper cover and be used for wearing to establish the fastener to place the metal ring in the mounting hole, the metal ring is located fastener flange limit below, consequently, the pressure of fastener directly acts on the metal ring is rather than directly acting on the plastic upper cover, can avoid the plastic upper cover is crushed by the fastener, simultaneously through setting up the metal ring, can exert bigger pressure and make the contact of plastic upper cover, sealing member and lower box is inseparabler, thereby improves sealing performance between plastic upper cover and the lower box.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a sealing structure, a battery box body and a battery pack.
Background
The battery box body comprises an upper cover and a lower box body, and the upper cover and the lower box body of each battery box body are all electrically connected, so that the waterproof requirement of the upper cover and the lower box body of each battery box body is achieved through a certain sealing mode and structural design. At present, when the battery box body is sealed, a squeeze riveting process is generally adopted to seal an upper cover and a lower box body of the battery box body, and then foamed silica gel or a silica gel strip is placed. However, for the battery case adopting the die-casting lower case and the plastic upper cover, the die-casting lower case and the plastic upper cover are not suitable for the press riveting structure, so that the die-casting lower case and the plastic upper cover are usually fixed by the fasteners, in order to ensure the sealing performance of the battery case, the fasteners can apply larger pressure to the plastic upper cover, so that the upper cover is in closer contact with the lower case, and because the upper cover is the plastic upper cover, when the pressure of the fasteners acting on the plastic upper cover is overlarge, the plastic upper cover is easy to crush.
Disclosure of Invention
The utility model aims at: the utility model provides a seal structure, battery box and battery package, aiming at the technical problem that the plastic upper cover is easy to be crushed when the pressure of the fastener acting on the plastic upper cover is too big in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a seal structure, includes plastic upper cover and fastener, plastic upper cover is provided with the mounting hole that link up, the metal ring has been placed in the mounting hole, the fastener includes flange limit and body of rod, the body of rod wears to establish the metal ring, the metal ring butt in the flange limit.
According to the utility model, the mounting holes are formed in the plastic upper cover and used for penetrating the fasteners, and the metal rings are arranged in the mounting holes and are positioned below the flange edges of the fasteners, so that the pressure of the fasteners directly acts on the metal rings instead of directly acting on the plastic upper cover, the plastic upper cover can be prevented from being crushed by the fasteners, and meanwhile, by arranging the metal rings, the plastic upper cover, the sealing element and the lower box body can be more tightly contacted by applying larger pressure, so that the sealing performance between the plastic upper cover and the lower box body is improved.
As a preferable scheme of the utility model, the metal ring is of a cylindrical structure, and the metal ring is closely attached to the inner wall of the mounting hole.
As a preferable scheme of the utility model, the wall thickness of the metal ring is larger than or equal to 2/3 of the width of the flange edge, so that the metal ring shares the pressure from the fastening piece, and the possibility of crushing the plastic upper cover is reduced.
As the preferable scheme of the utility model, the height of the metal ring is larger than or equal to the thickness of the plastic upper cover, so that the fastener is further ensured to be pressed on the metal ring instead of the plastic upper cover, and the plastic upper cover is prevented from being crushed.
As a preferred embodiment of the present utility model, the top surface of the metal ring is provided with an everting portion, and the everting portion can cover the flange edge of the fastener. By arranging the everting part, the wall thickness of the metal ring can be reduced, thereby saving the production cost.
As a preferable scheme of the utility model, the metal ring and the plastic upper cover are integrally formed into a structural part. Through with the metal ring with the plastic upper cover sets up to integrated into one piece structure, can reduce manufacturing cost, and can avoid the contact position gas tightness of metal ring and plastic upper cover poor, reduce sealed effect.
The utility model also discloses a battery box body, which comprises the sealing structure and a lower box body, wherein a sealing element is clamped between the plastic upper cover and the lower box body, a plurality of groups of corresponding mounting holes are formed in the plastic upper cover, the sealing element and the lower box body, and the mounting holes are used for penetrating the fasteners.
According to the utility model, a plurality of groups of corresponding mounting holes are formed in the plastic upper cover, the sealing element and the lower box body, the plastic upper cover and the lower box body are fixed by the fasteners through the mounting holes, and the sealing effect is realized by the sealing element clamped between the plastic upper cover and the lower box body; combine plastic upper cover with the metal ring that sets up between the fastener, the metal ring can be avoided the plastic upper cover is crushed by the fastener, simultaneously through setting up the metal ring, the plastic upper cover can bear bigger pressure, makes through applying bigger pressure plastic upper cover, sealing member and lower box contact inseparabler, thereby improves sealing performance between plastic upper cover and the lower box.
As a preferable scheme of the utility model, a dental socket is clamped between the fastening piece and the lower box body, and the dental socket is arranged for fixing the fastening piece.
As a preferred embodiment of the present utility model, the sealing member is foamed silica gel or a silica gel strip. Compared with the sealing ring, the cost of the foaming silica gel and the silica gel strip is lower.
The utility model also discloses a battery pack, which comprises the battery box body.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the utility model, the mounting holes are formed in the plastic upper cover and used for penetrating the fasteners, and the metal rings are arranged in the mounting holes and are positioned below the flange edges of the fasteners, so that the pressure of the fasteners directly acts on the metal rings instead of directly acting on the plastic upper cover, the plastic upper cover can be prevented from being crushed by the fasteners, and meanwhile, by arranging the metal rings, the plastic upper cover, the sealing element and the lower box body can be more tightly contacted by applying larger pressure, so that the sealing performance between the plastic upper cover and the lower box body is improved.
2. According to the utility model, a plurality of groups of corresponding mounting holes are formed in the plastic upper cover, the sealing element and the lower box body, the plastic upper cover and the lower box body are fixed by the fasteners through the mounting holes, and the sealing effect is realized by the sealing element clamped between the plastic upper cover and the lower box body; through setting up the metal ring, the plastic upper cover can bear bigger pressure, makes through applying bigger pressure the contact of plastic upper cover, sealing member and lower box is inseparabler, thereby improves sealing performance between plastic upper cover and the lower box.
3. According to the utility model, the metal ring and the plastic upper cover are arranged into the integrally formed structural part, so that the production cost can be reduced, poor air tightness of the contact part of the metal ring and the plastic upper cover can be avoided, and the sealing effect is reduced.
4. The utility model adopts the foaming silica gel or silica gel strips as the sealing piece, and has lower cost compared with the sealing ring.
5. According to the utility model, the upper plastic cover and the lower box body are fixed by the fasteners, so that the upper plastic cover and the lower box body can be repeatedly disassembled, the sealing requirement of the battery box body is ensured, the maintenance of parts in the battery box body is realized by disassembling the battery box body, and the rejection rate of a battery is reduced.
Drawings
Fig. 1 is a schematic view of the structure of a battery case according to the present utility model.
Fig. 2 is a schematic view of the sectional structure at the mounting hole described in embodiment 1.
Fig. 3 is a schematic view of the sectional structure at the mounting hole described in embodiment 2.
Fig. 4 is an enlarged view of a portion a in fig. 3.
The marks in the figure: 1-a plastic upper cover; 2-lower box body; 3-seals; 4-metal rings; 41-everting portion; 5-fastening; 51-flange edges; 52-a rod body; 6-tooth socket.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
The utility model provides a seal structure, as shown in fig. 1 and 2, including plastic upper cover 1 and fastener 5, plastic upper cover 1 is provided with the mounting hole that link up, fastener 5 includes flange limit 51 and body of rod 52, and optional, fastener 5 is bolt or screw or other, body of rod 52 wears to locate in the mounting hole, in order to avoid plastic upper cover 1 by fastener 5 is crushed still be provided with metal ring 4 between plastic upper cover 1 with the body of rod 52 of fastener 5, metal ring 4 butt in under flange limit 51. Through set up in plastic upper cover 1 mounting hole department the metal ring 4 can avoid plastic upper cover 1 by fastener 5 is crushed, simultaneously through setting up metal ring 4, plastic upper cover 1 can bear bigger pressure.
Specifically, the metal ring 4 has a cylindrical structure, and is tightly attached to the inner wall of the mounting hole of the plastic upper cover 1, and the wall thickness of the metal ring 4 is greater than or equal to 2/3 of the width of the flange edge 51, so that the metal ring 4 shares the pressure from the fastening piece 5, and the possibility that the plastic upper cover 1 is crushed is reduced. Further, the height of the metal ring 4 is greater than or equal to the thickness of the plastic upper cover 1, so that the fastener 5 is further ensured to be pressed on the metal ring 4 instead of the plastic upper cover 1, and the technical effect of avoiding the plastic upper cover 1 from being crushed is achieved.
Preferably, the metal ring 4 and the plastic upper cover 1 are integrally formed structural members, and the metal ring 4 and the plastic upper cover 1 are integrally formed structural members, so that poor air tightness of contact positions of the metal ring 4 and the plastic upper cover 1 can be avoided, sealing effect is reduced, and compared with assembly of two components, the one-time formed structural members can reduce production cost.
Example 2
As shown in fig. 3 and 4, this embodiment is different from embodiment 1 in that in this embodiment, the top surface of the metal ring 4 is provided with an everting portion 41, the metal ring 4 and the everting portion 41 are integrally formed as a structural member, and the everting portion 41 can cover at least 2/3 of the width of the flange edge 51 of the fastener 5. By providing the everting portion 41, the wall thickness of the metal ring 4 can be reduced, thereby reducing the amount of metal and achieving the technical effect of saving production cost.
Example 3
1-4, including embodiment 1 or 2 a seal structure still includes box 2 down, optionally, box 2 is down for die-casting down, plastic upper cover 1 with press from both sides between the box 2 down and be equipped with sealing member 3, through setting up sealing member 3 is used for improving sealing performance between plastic upper cover 1 with box 2 down, preferably, sealing member 3 is foaming silica gel or silica gel strip, compares and adopts the sealing washer, and foaming silica gel or silica gel strip's cost is lower. Further, the plastic upper cover 1, the sealing member 3 and the lower box 2 are provided with a plurality of groups of corresponding mounting holes, the mounting holes are used for penetrating the fasteners 5, and the rod body 52 sequentially penetrates through the mounting holes of the plastic upper cover 1, the sealing member 3 and the lower box 2, so that the plastic upper cover 1 and the lower box 2 are fixed together.
The plastic upper cover 1, the sealing piece 3 and the lower box body 2 are provided with a plurality of groups of corresponding mounting holes, the fastening piece 5 passes through the mounting holes to fix the plastic upper cover 1 and the lower box body 2, and the sealing effect is realized through the sealing piece 3 clamped between the plastic upper cover 1 and the lower box body 2; in combination with the metal ring 4, the plastic upper cover 1 can bear larger pressure, and the plastic upper cover 1, the sealing piece 3 and the lower box body 2 are in closer contact by applying larger pressure, so that the sealing performance of the battery box body is improved.
Further, through adopting fastener 5 is fixed plastic upper cover 1 sealing member 3 with lower box 2 can realize plastic upper cover 1 with lower box 2 dismantles repeatedly and guarantees the sealed demand of battery box, realizes maintaining the spare part in the battery box through the dismantlement to the battery box, reduces the disability rate of battery box.
The lower box body 2 is provided with a tooth socket 6, the tooth socket 6 is arranged between the fastening piece 5 and the lower box body 2, and the tooth socket 6 is used for fixing the fastening piece 5. Specifically, the tooth socket 6 is in threaded connection with the bolt 5, and the tooth socket 6 is also in threaded connection with the lower box body 2.
Example 4
A battery pack comprises the battery box body according to the embodiment 3, wherein the battery box body can be repeatedly disassembled, so that parts inside the battery box body are maintained and replaced, the rejection rate of the battery box body is reduced, and the rejection rate of the battery pack can be reduced.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The utility model provides a seal structure, its characterized in that includes plastic upper cover (1) and fastener (5), plastic upper cover (1) is provided with the mounting hole that link up, metal ring (4) have been placed in the mounting hole, fastener (5) include flange limit (51) and body of rod (52), body of rod (52) wear to establish metal ring (4), metal ring (4) butt in flange limit (51).
2. A sealing arrangement according to claim 1, characterized in that the metal ring (4) is of cylindrical configuration, the metal ring (4) being arranged against the inner wall of the mounting hole.
3. A sealing arrangement according to claim 2, characterized in that the wall thickness of the metal ring (4) is greater than or equal to 2/3 of the width of the flange edge (51).
4. A sealing structure according to claim 2, characterized in that the height of the metal ring (4) is greater than or equal to the thickness of the plastic upper cover (1).
5. A sealing arrangement according to claim 2, characterized in that the top surface of the eyelet (4) is provided with an everting portion (41), which everting portion (41) is adapted to cover the flange edge (51) of the fastener (5).
6. A sealing arrangement according to any one of claims 1-5, characterized in that the metal ring (4) and the plastic upper cover (1) are integrally formed as a structural member.
7. The battery box body is characterized by comprising the sealing structure according to any one of claims 1-6, and further comprising a lower box body (2), wherein a sealing piece (3) is clamped between the plastic upper cover (1) and the lower box body (2), the plastic upper cover (1), the sealing piece (3) and the lower box body (2) are provided with a plurality of groups of corresponding mounting holes, and the mounting holes are used for penetrating the fasteners (5).
8. A battery compartment according to claim 7, characterized in that a dental socket (6) is sandwiched between the fastening member (5) and the lower compartment (2).
9. A battery compartment according to claim 7, characterized in that the sealing member (3) is foamed silicone or a strip of silicone.
10. A battery pack comprising a battery compartment according to any one of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320754463.1U CN220065897U (en) | 2023-04-06 | 2023-04-06 | Sealing structure, battery box and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320754463.1U CN220065897U (en) | 2023-04-06 | 2023-04-06 | Sealing structure, battery box and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220065897U true CN220065897U (en) | 2023-11-21 |
Family
ID=88787234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320754463.1U Active CN220065897U (en) | 2023-04-06 | 2023-04-06 | Sealing structure, battery box and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220065897U (en) |
-
2023
- 2023-04-06 CN CN202320754463.1U patent/CN220065897U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |