CN215834642U - Shell structure and lithium ion starting battery - Google Patents
Shell structure and lithium ion starting battery Download PDFInfo
- Publication number
- CN215834642U CN215834642U CN202121528568.2U CN202121528568U CN215834642U CN 215834642 U CN215834642 U CN 215834642U CN 202121528568 U CN202121528568 U CN 202121528568U CN 215834642 U CN215834642 U CN 215834642U
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- Prior art keywords
- shell
- annular boss
- casing
- annular
- side wall
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 238000003466 welding Methods 0.000 claims abstract description 15
- 230000006978 adaptation Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005304 joining Methods 0.000 description 4
- 241000463219 Epitheca Species 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
Landscapes
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model discloses a shell structure and a lithium ion starting battery, which comprise a first shell and a second shell, wherein an annular boss is formed on the combination side of the first shell, a nested concave part which can be embedded by the annular boss in a matching way is arranged on the combination side of the second shell, the first shell and the second shell are combined together in a matching way through the mutual matching of the annular boss and the nested concave part, an ultrasonic line for ultrasonic welding is formed at the end part of the annular boss, and a sealing ring which can be matched with the side wall of the nested concave part to form a waterproof sealing structure is arranged on the outer side wall of the annular boss. According to the utility model, the sealing ring sealing structure and the ultrasonic sealing welding structure are arranged at the joint of the first shell and the second shell, so that the double-sealing waterproof effect is achieved, the sealing waterproof performance of the shell structure is greatly improved, and the shell structure can meet the protection requirement of IP67 grade.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a shell structure and a lithium ion starting battery.
Background
Traditional battery case structure includes epitheca and inferior valve usually, and in process of production, epitheca and inferior valve are usually through beating the processing of gluing, make after glue solidification to the junction of epitheca and inferior valve sealed with fixed, but can lead to sealed effect not enough because beat the inhomogeneous of gluing, the inside bubble scheduling problem of glue among the actual operation process, under IP67 condition, the inside normal use that should influence the battery that can intake of shell structure.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a shell, which mainly solves the technical problem that the sealing and waterproof performance of the existing gluing and sealing type battery shell structure is not good enough.
In order to achieve the purpose, the utility model is realized by the following technical scheme:
the utility model provides a shell structure, includes first casing and second casing, form annular boss on the combination side of first casing, be equipped with the nested concave part that can supply the embedding of annular boss adaptation on the combination side of second casing, first casing and second casing pass through the mutually supporting adaptation ground of annular boss and nested concave part and combine together, and be formed with the ultrasonic line that ultrasonic bonding used on the tip position of annular boss, be equipped with on the lateral wall of annular boss and mutually support the sealing washer that forms waterproof sealing structure with the lateral wall of nested concave part.
Further, be formed with an annular step portion with annular boss looks adaptation on the combination side of second casing, when first casing and second casing combine together, the relative setting inside and outside the step lateral wall of the lateral wall of annular boss and annular step portion, the sealing washer inlays to be established on the lateral wall of annular boss.
Further, the step bottom surface of the annular step portion is configured to be capable of abutting against the ultrasonic line provided at the end position of the annular boss and fixedly connected together by ultrasonic welding.
Furthermore, a plurality of limiting ribs capable of abutting against the inner side wall of the annular boss for limiting are uniformly distributed on the inner wall of the second shell, and a nesting concave part capable of being embedded by the annular boss in a matching mode is formed in an inwards concave space between each limiting rib and the step side wall of the annular step part.
Further, the distance between the limiting rib and the step side wall of the annular step part is slightly larger than the thickness of the annular boss.
Further, be provided with on the first casing and mutually support in order to form backstop limit structure's backstop flange with the annular step portion top end face of second casing.
Further, the first housing is a battery upper case structure, the second housing is a battery lower case structure, and the battery upper case structure and the battery lower case structure are configured to be able to be combined with each other and enclose inside to form a closed cavity for mounting the lithium ion starting battery body.
Based on the same invention concept, the utility model also provides a lithium ion starting battery which comprises any one of the shell structures, wherein a closed cavity is formed inside the shell structure, and a lithium ion battery body is arranged in the closed cavity.
The technical scheme has the following advantages or beneficial effects:
in the case structure and the lithium ion starting battery of the utility model, because the annular boss is arranged on the combination side of the first case and the nesting recess is correspondingly arranged on the second case, the first case and the second case can be combined together in a matching way through the mutual matching of the annular boss and the nesting recess which are correspondingly arranged, the outer side wall of the annular boss is provided with the sealing ring which can be tightly matched with the side wall of the nesting recess to form a waterproof sealing structure, meanwhile, the end part position of the annular boss is provided with the ultrasonic line, when the annular boss of the first case and the nesting recess on the second case are combined in place, the ultrasonic line on the end part position of the annular boss can be abutted against the inner wall of the nesting recess, and then the contact position of the annular boss and the nesting recess is ultrasonically welded by the ultrasonic welding machine, so that the first case and the second case are sealed and firmly fixedly connected together, therefore, a sealing ring sealing structure and an ultrasonic sealing welding structure are arranged at the joint of the first shell and the second shell, so that the double-sealing waterproof effect is achieved, the sealing waterproof performance of the shell structure is greatly improved, and the shell structure can meet the protection requirement of the IP67 grade.
Drawings
Fig. 1 is a schematic perspective view of a housing structure according to an embodiment of the present invention.
Fig. 2 is a schematic exploded perspective view of a housing structure according to an embodiment of the present invention.
Fig. 3 is an exploded perspective view of another angle of the housing structure according to the embodiment of the present invention.
Fig. 4 is a structural sectional view of a housing structure of the embodiment of the present invention.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Description of reference numerals:
1. the sealing ring comprises a first shell, a second shell, a sealing ring, a ring-shaped boss, a stop flange, a ring-shaped step portion, a stop flange, a stop rib, 111, an ultrasonic line, 211, a step side wall, 212 and a step bottom surface.
Detailed Description
The utility model is further described with reference to the following figures and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides a housing structure, including a first housing 1 and a second housing 2, an annular boss 11 is formed on a joining side of the first housing 1, a nesting recess into which the annular boss 11 is fittingly inserted is formed on a joining side of the second housing 2, the first housing 1 and the second housing 2 are fittingly joined together by the mutual fit of the annular boss 11 and the nesting recess, an ultrasonic line 111 for ultrasonic welding is formed at an end position of the annular boss 11, and a sealing ring 3 capable of forming a waterproof sealing structure by the mutual fit with a side wall of the nesting recess is formed on an outer side wall of the annular boss 11. It can be understood that, in the present embodiment, since the annular boss 11 is provided on the joining side of the first casing 1 and the nesting recess is correspondingly provided on the second casing 2, the first casing 1 and the second casing 2 can be fittingly joined together by the mutual engagement of the correspondingly provided annular boss 11 and the nesting recess, and the sealing ring 3 is provided on the outer side wall of the annular boss 11, the sealing ring 3 can be tightly fitted with the side wall of the nesting recess to form a waterproof sealing structure, and at the same time, the ultrasonic line 111 is formed on the end position of the annular boss 11, when the annular boss 11 of the first casing 1 and the nesting recess on the second casing 2 are joined in place, the ultrasonic line 111 on the end position of the annular boss 11 can collide with the inner wall of the nesting recess, and then the contact position thereof is ultrasonically welded by the ultrasonic welding machine, and then make first casing 1 and second casing 2 sealed and firmly fixed connection together, consequently, be provided with sealing washer seal structure and ultrasonic seal welded structure on the junction of first casing 1 and second casing 2, have double seal waterproof effect, improved the waterproof sealing performance of shell structure widely for the shell structure can satisfy the protection requirement of IP67 grade.
Referring to fig. 2 to 5, in a preferred embodiment, an annular step 21 adapted to the annular boss 11 is formed on the joining side of the second housing 2, when the first housing 1 and the second housing 2 are joined together, the outer side wall of the annular boss 11 is disposed opposite to the inner side and the outer side of the step side wall 211 of the annular step 21, and the sealing ring 3 is embedded on the outer side wall of the annular boss 11. In this embodiment, preferably, an annular embedding groove with a semicircular cross section is formed on the outer side wall of the annular boss 11, the sealing ring 3 is embedded in the annular embedding groove in a matching manner, and when the first casing 1 and the second casing 2 are combined in place, the sealing ring 3 on the outer side wall of the annular boss 11 can be tightly matched with the step side wall 211 of the annular step portion 21 to form a first sealing and waterproof structure. Preferably, the step bottom surface 212 of the annular step portion 21 is configured to be capable of abutting against the ultrasonic line 111 provided at the end position of the annular boss 11 and fixedly connected together by ultrasonic welding. It can be understood that the ultrasonic welding position of the first shell 1 and the second shell 2 not only can make the first shell 1 and the second shell 2 fixedly connected together, but also has sealing property at the welding position due to the characteristics of ultrasonic welding, thereby forming a second sealing and waterproof structure of the first shell 1 and the second shell 2. Therefore, the joint of the first shell 1 and the second shell 2 has two waterproof sealing structures, and the waterproof sealing performance is greatly improved.
Referring to fig. 2 and 5, in a preferred embodiment, a plurality of limiting ribs 22 capable of pressing and limiting the inner side wall of the annular boss 11 are uniformly distributed on the inner wall of the second housing 2, and a recessed space between each limiting rib 22 and the step side wall 211 of the annular step 21 forms a nesting recess for the annular boss 11 to be inserted in. Preferably, the spacing between the spacing rib 22 and the step sidewall 211 of the annular step portion 21 is slightly larger than the thickness of the annular boss 11. It can be understood that, through set up a plurality of spacing ribs 22 that set up relatively with the step lateral wall 211 interval of annular step portion 21 on the inner wall of second casing 2, make and combine the back in place when first casing 1 and second casing 2, each spacing rib 22 supports respectively to press and corresponds position department at the inside wall of annular boss 11, the inside wall to annular boss 11 has spacing supporting role, on the one hand can improve the counterpoint precision and the combination stability of first casing 1 and second casing 2, on the other hand, support and limiting role through each spacing rib 22 have guaranteed effectively that sealing washer 3 can closely cooperate together with the step lateral wall 211 of annular step portion 21 all the time, be favorable to improving sealing washer 3's waterproof sealing performance.
Referring to fig. 2 to 5, in a preferred embodiment, the first housing 1 is provided with a stop flange 12 capable of cooperating with an end surface of a top end of the annular step portion 21 of the second housing 2 to form a stop limit structure. It can be understood that, when the first casing 1 and the second casing 2 are combined in place, the ultrasonic line 111 at the end position of the annular boss 11 and the step bottom surface 212 of the annular step portion 21 abut against each other, and at the same time, a space is reserved between the stopping action surface of the stopping flange 12 and the top end surface of the annular step portion 21, and at the same time, the distance between the stopping action surface of the stopping flange 12 and the top end surface of the annular step portion 21 is set to be matched with the protruding height of the ultrasonic line 111 (with a cross section of an inverted triangular convex rib structure), so that in the initial state of combining the first casing 1 and the second casing 2, only the ultrasonic line 111 and the step bottom surface 212 of the annular step portion 21 abut against each other, and a gap is reserved between the stopping action surface of the stopping flange 12 on the first casing 1 and the top end surface of the annular step portion 21, and then, during the ultrasonic welding of the first casing 1 and the second casing 2 by the ultrasonic welding machine, the ultrasonic line 111 melts and disappears, and under the action of external pressure, the first shell 1 sinks relative to the second shell 2 until the stop action surface of the stop flange 12 abuts against the end surface of the top end of the annular step portion 21 to form a limiting structure so as to prevent the first shell 1 from excessively sinking relative to the second shell 2.
Referring to fig. 1 to 5, in a preferred embodiment, a first case 1 is a battery upper case structure, a second case 2 is a battery lower case structure, and the battery upper case structure and the battery lower case structure are configured to be coupled to each other and enclose a sealed cavity therein for mounting a lithium ion starting battery body. However, it should be understood by those skilled in the art that in other embodiments, the first casing 1 may also be a battery lower casing structure, and accordingly, the second casing 2 may also be a battery upper casing structure, or the first casing 1 and the second casing 2 may be upper and lower casing structures of other electronic devices with waterproof sealing requirements, respectively, and are not limited to the application to the battery casing structure disclosed in the present embodiment.
An embodiment of the present invention further provides a lithium ion starting battery, including the casing structure of any of the above embodiments, wherein a sealed cavity is formed inside the casing structure, and a lithium ion battery body (not shown) is disposed in the sealed cavity.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not make the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention, so that all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
Claims (8)
1. A housing structure characterized by: including first casing (1) and second casing (2), form annular boss (11) on the combination side of first casing (1), be equipped with the nested concave part that can supply annular boss (11) adaptation embedding on the combination side of second casing (2), first casing (1) and second casing (2) are in the same place through mutually supporting adaptation ground of annular boss (11) and nested concave part, and be formed with ultrasonic line (111) that ultrasonic welding used on the tip position of annular boss (11), be equipped with on the lateral wall of annular boss (11) and mutually support sealing washer (3) that form waterproof sealing structure with the lateral wall of nested concave part.
2. The housing structure of claim 1, wherein: an annular step part (21) matched with the annular boss (11) is formed on the combination side of the second shell (2), when the first shell (1) and the second shell (2) are combined together, the outer side wall of the annular boss (11) and the step side wall (211) of the annular step part (21) are arranged oppositely inside and outside, and the sealing ring (3) is embedded on the outer side wall of the annular boss (11).
3. The housing structure of claim 2, wherein: the step bottom surface (212) of the annular step portion (21) is configured to be capable of abutting against an ultrasonic line (111) provided at an end position of the annular boss (11) and fixedly connected together by ultrasonic welding.
4. A housing structure according to claim 3, characterized in that: a plurality of limiting ribs (22) capable of abutting against and limiting the inner side wall of the annular boss (11) are uniformly distributed on the inner wall of the second shell (2), and an inwards concave space between each limiting rib (22) and the step side wall (211) of the annular step part (21) forms a nested concave part capable of being embedded by the annular boss (11) in a matching mode.
5. The housing structure according to claim 4, characterized in that: the distance between the limiting rib (22) and the step side wall (211) of the annular step part (21) is slightly larger than the thickness of the annular boss (11).
6. The housing structure according to any one of claims 2 to 5, wherein: the first shell (1) is provided with a stopping flange (12) which can be matched with the top end face of the annular step part (21) of the second shell (2) to form a stopping limiting structure.
7. The housing structure of claim 6, wherein: the first shell (1) is a battery upper shell structure, the second shell (2) is a battery lower shell structure, and the battery upper shell structure and the battery lower shell structure are configured to be capable of being combined with each other and internally enclosing to form a closed cavity for installing the lithium ion starting battery body.
8. A lithium ion enabled battery, characterized by: the shell structure of any one of claims 1 to 7, wherein a closed cavity is formed inside the shell structure, and a lithium ion battery body is arranged in the closed cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528568.2U CN215834642U (en) | 2021-07-06 | 2021-07-06 | Shell structure and lithium ion starting battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528568.2U CN215834642U (en) | 2021-07-06 | 2021-07-06 | Shell structure and lithium ion starting battery |
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| Publication Number | Publication Date |
|---|---|
| CN215834642U true CN215834642U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121528568.2U Active CN215834642U (en) | 2021-07-06 | 2021-07-06 | Shell structure and lithium ion starting battery |
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| CN (1) | CN215834642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
-
2021
- 2021-07-06 CN CN202121528568.2U patent/CN215834642U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115275471A (en) * | 2022-08-12 | 2022-11-01 | 天津望圆智能科技股份有限公司 | Underwater battery sealing structure, underwater battery sealing device and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A shell structure and lithium-ion starting battery Effective date of registration: 20230329 Granted publication date: 20220215 Pledgee: Agricultural Bank of China Limited Xiamen Pilot Free Trade Zone Branch Pledgor: POWEROAD (XIAMEN) RENEWABLE ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980036848 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP03 | Change of name, title or address |
Address after: No. 9 Shengli Road, Bajia Village, Gutian Town, Shanghang County, Longyan City, Fujian Province, 364200 Patentee after: Fujian Liangdao New Energy Development Co.,Ltd. Country or region after: China Address before: 361000 South side of the third floor of Building 1 #, No. 8 Xiayang Road, Haicang District, Xiamen City, Fujian Province Patentee before: POWEROAD (XIAMEN) RENEWABLE ENERGY TECHNOLOGY CO.,LTD. Country or region before: China |
|
| CP03 | Change of name, title or address |