CN213717001U - Battery module shell structure and battery module - Google Patents
Battery module shell structure and battery module Download PDFInfo
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- CN213717001U CN213717001U CN202022550837.7U CN202022550837U CN213717001U CN 213717001 U CN213717001 U CN 213717001U CN 202022550837 U CN202022550837 U CN 202022550837U CN 213717001 U CN213717001 U CN 213717001U
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- battery module
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Battery Mounting, Suspending (AREA)
Abstract
A battery module shell structure and a battery module are provided, wherein the battery module shell structure comprises an outer envelope and a top cover; the outer envelope is U-shaped and comprises a bottom plate and a pair of side plates, and the pair of side plates are respectively connected to two sides of the bottom plate to form a containing cavity for containing the battery cell; the top cap is the type of falling U, including apron and a pair of riser, and a pair of riser is connected respectively in the both sides of apron, and the top cap passes through a pair of riser detachably and connects on a pair of curb plate. Outer envelope links together with top cap detachably, when the installation electric core, dismantles the top cap of battery module shell structure and packs into the electric core and hold the chamber, and the installation is accomplished the back, on locating outer envelope with the top cap lid, forms complete battery module shell structure, has effectively solved among the prior art electric core and can only penetrate and the problem that the electric core that causes leaks and the little problem of integral type shell range of application from the one end of integral type shell.
Description
Technical Field
The utility model belongs to the power battery field, more specifically relates to a battery module shell structure and battery module.
Background
With the rapid development of new energy industry, electric vehicles are receiving much attention, and the battery module is a core component of the electric vehicle and a power source of the electric vehicle. The interior of a general battery module is formed by combining a plurality of battery monomers in different series-parallel connection modes, and the exterior of the general battery module is mostly formed into a cage-type structure through a metal shell and two end plates to serve as a protective layer for an internal electric core.
The trend in the industry at present is that battery module shell structure designs into integral type structure, and the majority is through metal section bar stretch forming, finally is both ends open-ended cavity structures, as shown in fig. 1, this kind of integral type structure forming technology and technology are mature relatively, and the yields is higher, but the shell of this kind of integral type structure has following problem when the module is assembled:
1. the single battery can only penetrate through one end of the integrated shell, and when the single battery is a soft-package battery cell, the battery cell is easy to be scraped and bumped in the penetrating process to cause battery cell leakage, so that the whole module is scrapped;
2. the integrated shell has a small application range, is only suitable for soft-package battery cells, and is not suitable for square-shell battery cells and low in universality rate.
Therefore, the battery module housing structure is expected to be provided, and the problems that in the prior art, a single battery can only penetrate from one end of an integrated housing to cause cell leakage and the application range of the integrated housing is small can be effectively solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery module shell structure and battery module to electric core can only penetrate and the problem that the electric core that causes leaks and the little problem of integral type shell range of application from the one end of integral type shell among the solution prior art.
In order to achieve the above object, the present invention provides a battery module casing structure, which comprises an outer envelope and a top cover;
the outer envelope is U-shaped and comprises a bottom plate and a pair of side plates, and the side plates are respectively connected to two sides of the bottom plate to form accommodating cavities for accommodating the battery cells;
the top cap is the type of falling U, including apron and a pair of riser, a pair of riser connect respectively in the both sides of apron, the top cap passes through a pair of riser detachably connect in on a pair of curb plate.
Optionally, the inner side of the vertical plate is welded to the outer side of the side plate through a welding process.
Optionally, one end of the side plate is provided with a first folded edge bent into the accommodating cavity, and the bending angle of the first folded edge is 180 °.
Optionally, a second folded edge bent toward the side plate is arranged at the tail end of the first folded edge and used for protecting the battery cell.
Optionally, the length of the first flap is in the range of 10-30 mm.
Optionally, the heat insulation layer is connected to the side, facing the accommodating cavity, of the first folded edge through a bonding process.
Optionally, the material of the thermal insulation layer is one of aerogel, mica sheet and polycarbonate.
Optionally, a plurality of first inserting parts are respectively arranged at two ends of the bottom plate;
two ends of the side plate are respectively provided with a second plugging part;
and the two ends of the cover plate are respectively provided with a third plugging part.
Optionally, a plurality of reinforcing structures arranged in sequence from top to bottom are arranged on the side plate;
the reinforcing structure is an inwards concave structure, and the depth of the concave structure is 0.8-2.0 mm.
A battery module comprises a plurality of battery cores, a battery module shell structure and a pair of end plates.
The beneficial effects of the utility model reside in that:
the utility model discloses a battery module shell structure includes outer envelope and top cap, wherein, outer envelope includes bottom plate and a pair of curb plate, and a pair of curb plate is connected respectively in the both sides of bottom plate in order to form the chamber that holds the electric core, and the top cap includes apron and a pair of riser, and a pair of riser is connected respectively in the both sides of apron, and the top cap passes through a pair of riser detachably to be connected on a pair of curb plate; outer envelope links together with top cap detachably, when the installation electric core, dismantles the top cap of battery module shell structure and packs into the electric core and hold the chamber, and the installation is accomplished the back, on locating outer envelope with the top cap lid, forms complete battery module shell structure, has effectively solved among the prior art electric core and can only penetrate and the problem that the electric core that causes leaks and the little problem of integral type shell range of application from the one end of integral type shell.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 is a schematic view illustrating the structure of a battery module in the related art.
Fig. 2 shows a schematic structural diagram of a battery module housing structure according to an embodiment of the present invention.
Fig. 3 shows a side view of a battery module housing structure according to an embodiment of the present invention.
Fig. 4 shows a cross-sectional view of a connection of a riser and a side plate of a battery module housing structure according to an embodiment of the present invention.
Fig. 5 shows a schematic structural view of a battery module according to an embodiment of the present invention.
Description of the reference numerals
1. A battery module housing structure; 2. an end plate; 3. a base plate; 4. a side plate; 5. a cover plate; 6. a vertical plate; 7. a third mating portion; 8. a second insertion part; 9. a first insertion part; 10. an electric core; 11. a reinforcing structure; 12. a thermal insulation layer; 13. a first folded edge; 14. and a second folded edge.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The battery module shell structure comprises an outer envelope and a top cover;
the outer envelope is U-shaped and comprises a bottom plate and a pair of side plates, and the pair of side plates are respectively connected to two sides of the bottom plate to form a containing cavity for containing the battery cell;
the top cap is the type of falling U, including apron and a pair of riser, and a pair of riser is connected respectively in the both sides of apron, and the top cap passes through a pair of riser detachably and connects on a pair of curb plate.
Specifically, the utility model discloses a battery module shell structure includes outer envelope and top cap, wherein, outer envelope includes bottom plate and a pair of curb plate, and a pair of curb plate is connected respectively in the both sides of bottom plate in order to form the holding chamber that holds the electric core, and the top cap includes apron and a pair of riser, and a pair of riser is connected respectively in the both sides of apron, and the top cap passes through a pair of riser detachably to be connected on a pair of curb plate; outer envelope links together with top cap detachably, when the installation electric core, dismantles the top cap of battery module shell structure and packs into the electric core and hold the chamber, and the installation is accomplished the back, on locating outer envelope with the top cap lid, forms complete battery module shell structure, has effectively solved among the prior art electric core and can only penetrate and the problem that the electric core that causes leaks and the little problem of integral type shell range of application from the one end of integral type shell.
Furthermore, the outer envelope and the top cover are respectively in a U shape and an inverted U shape, the sheet metal is preferably bent and formed by adopting an integral forming process, the range of the thickness of the sheet metal is preferably 0.5-2.5mm, the sheet metal can be made of any material meeting the strength requirement, such as an aluminum plate, a steel plate, a non-metal plate and the like, and the sheet metal is preferably made of aluminum; the height range of the vertical plate in the top cover is 10-30mm, the preferred height of the vertical plate is 15mm, and the thickness of the outer envelope is the same as that of the top cover.
In one example, the inner side of the riser is welded to the outer side of the side plate by a welding process.
Specifically, welding process can be laser welding process or ultrasonic welding process, the utility model discloses preferably laser welding process, through welding process, need the frock to press from both sides tightly during the welding, saved the fixed and gluey fixed class structure of joint, reduced spare part cost and quantity, and this welded structure's mechanical strength is good, consequently, outer envelope and top cap can link together tightly, form battery module shell structure.
Further, the welding length of the outer envelope and the top cover welding part is 200-300mm, the length of each welding line is 30-60mm, the width of each welding line is 1-3mm, the utility model discloses preferably the welding line length is 40mm, the welding line width is 2 mm.
In one example, one end of the side plate is provided with a first folding edge which is folded towards the accommodating cavity, and the folding angle of the first folding edge is 180 degrees;
the tail end of the first folding edge is provided with a second folding edge bent towards the side plate and used for protecting the battery cell.
Specifically, one end of the side plate is provided with a first folding edge which is bent into the containing cavity, the bending angle of the first folding edge is 180 degrees, when the outer envelope and the top cover are welded through a welding process, high heat can be generated, the first folding edge can play a good role in heat dissipation, and the electric core is prevented from being damaged due to overhigh welding temperature; with this simultaneously, the end of first hem is equipped with the second hem of buckling to the curb plate, because the end of first hem is close to electric core, in the battery use, the end of first hem can produce the damage to electric core, consequently, the design of second hem can effectively avoid the end of first hem to produce the damage to electric core
In one example, the length of the first flap ranges from 10-30 mm.
In one example, the battery module housing structure further comprises a heat insulation layer, wherein the heat insulation layer is connected to one side, facing the accommodating cavity, of the first folding edge through a bonding process;
the material of insulating layer is one of aerogel, mica sheet and polycarbonate.
Specifically, the insulating layer is connected to the first folding edge through a bonding process, and the heat insulating material can prevent overhigh heat in the welding process from being transferred to the battery cell and further damaging the battery cell.
In one example, two ends of the bottom plate are respectively provided with a plurality of first inserting parts;
two ends of the side plate are respectively provided with a second plugging part;
and the two ends of the cover plate are respectively provided with a third plugging part.
In one example, a plurality of reinforcing structures are arranged on the side plate from top to bottom;
the reinforcing structure is an inwards concave structure, and the depth of the concave structure is 0.8-2.0 mm.
Specifically, be equipped with the additional strengthening that a plurality of from the top down arranged in proper order on the curb plate, additional strengthening's design can improve battery module shell structure's bearing capacity and compressive capacity, and when battery module shell structure's curb plate received normal force F, additional strengthening made the difficult deformation that produces of curb plate, and then avoided the extrusion and the friction to electric core.
A battery module includes a plurality of cells, a battery module housing structure according to and a pair of end plates.
Examples
As shown in fig. 2 to 4, a battery module housing structure 1 includes an outer envelope and a top cover;
the outer envelope is U-shaped and comprises a bottom plate 3 and a pair of side plates 4, and the pair of side plates 4 are respectively connected to two sides of the bottom plate 3 to form accommodating cavities for accommodating the battery cells 10;
the top cap is the type of falling U, including apron 5 and a pair of riser 6, and a pair of riser 6 is connected respectively in the both sides of apron 5, and the top cap passes through 6 detachably of a pair of riser and connects on a pair of curb plate 4.
Wherein, the inner side of the vertical plate 6 is welded with the outer side of the side plate 4 through a welding process. One end of the side plate 4 is provided with a first folding edge 13 which is bent towards the containing cavity, and the bending angle of the first folding edge 13 is 180 degrees; the end of the first folded edge 13 is provided with a second folded edge 14 bent towards the side plate 4 for protecting the battery core 10, wherein the length range of the first folded edge 13 is 10-30 mm. The battery module shell structure 1 further comprises a heat insulation layer 12, wherein the heat insulation layer 12 is connected to one side, facing the accommodating cavity, of the first folding edge 13 through a bonding process; the material of the thermal insulation layer 12 is one of aerogel, mica sheet and polycarbonate. A plurality of first inserting parts 9 are respectively arranged at two ends of the bottom plate 3; two ends of the side plate 4 are respectively provided with a second plugging part 8; the two ends of the cover plate 5 are respectively provided with a third plugging part 7. The side plate 4 is provided with a plurality of reinforcing structures 11 which are arranged from top to bottom in sequence; the reinforcing structure 11 is an inward concave structure, and the depth of the concave structure is 0.8-2.0 mm.
Specifically, two ends of the bottom plate 3 are respectively provided with a plurality of first inserting parts 9 for connecting with one end plate 2; two ends of the side plate 4 are respectively provided with a second plugging part 8; the two ends of the cover plate 2 are provided with third plugging parts 7; correspondingly, the bottom of the end plate 2 is provided with a plurality of first slots matched with the first inserting parts 9, two sides of the end plate 2 are respectively provided with second slots matched with the second inserting parts 8, the top of the end plate 2 is provided with third slots matched with the third inserting parts 7, and the connection mode enables the battery module shell structure 1 to restrain the end plate 2 in three X/Y/Z directions, wherein Y is the length direction of the battery module shell structure 1, X is the width direction of the battery module shell structure 1, and Z is the height direction of the battery module shell structure 1; when end plate 2 received normal force F, this battery module shell structure 1 will play the supporting role to end plate 2 in the three direction of X/Y/Z, guarantees that end plate 2 can not by conquassation or slide, and then avoids producing friction and extruded problem to electric core 10.
As shown in fig. 5, a battery module includes a plurality of battery cells 10, a battery module case structure 1 according to the above, and a pair of end plates 2.
To sum up, the battery module shell structure of the present invention comprises an outer envelope and a top cover, wherein the outer envelope comprises a bottom plate and a pair of side plates, the pair of side plates are respectively connected to two sides of the bottom plate to form a containing cavity for containing an electrical core, the top cover comprises a cover plate and a pair of vertical plates, the pair of vertical plates are respectively connected to two sides of the cover plate, and the top cover is detachably connected to the pair of side plates through the pair of vertical plates; outer envelope links together with top cap detachably, when the installation electric core, dismantles the top cap of battery module shell structure and packs into the electric core and hold the chamber, and the installation is accomplished the back, on locating outer envelope with the top cap lid, forms complete battery module shell structure, has effectively solved among the prior art electric core and can only penetrate and the problem that the electric core that causes leaks and the little problem of integral type shell range of application from the one end of integral type shell.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A battery module shell structure is characterized by comprising an outer envelope and a top cover;
the outer envelope is U-shaped and comprises a bottom plate and a pair of side plates, and the side plates are respectively connected to two sides of the bottom plate to form accommodating cavities for accommodating the battery cells;
the top cap is the type of falling U, including apron and a pair of riser, a pair of riser connect respectively in the both sides of apron, the top cap passes through a pair of riser detachably connect in on a pair of curb plate.
2. The battery module housing structure according to claim 1, wherein the inner side of the vertical plate is welded to the outer side of the side plate through a welding process.
3. The battery module case structure according to claim 1, wherein one end of the side plate is provided with a first flange bent into the receiving cavity, and the first flange has a bending angle of 180 °.
4. The battery module housing structure of claim 3, wherein a second flange bent toward the side plate is provided at a terminal of the first flange for protecting the battery cell.
5. The battery module case structure according to claim 3, wherein the length of the first flange ranges from 10 to 30 mm.
6. The battery module housing structure of claim 3, further comprising a thermal insulation layer attached to a side of the first fold edge facing the receiving cavity by a bonding process.
7. The battery module housing structure according to claim 6, wherein the material of the thermal insulation layer is one of aerogel, mica sheet, and polycarbonate.
8. The battery module housing structure according to claim 1, wherein a plurality of first insertion parts are respectively provided at both ends of the base plate;
two ends of the side plate are respectively provided with a second plugging part;
and the two ends of the cover plate are respectively provided with a third plugging part.
9. The battery module housing structure of claim 1, wherein the side plate is provided with a plurality of reinforcing structures arranged in sequence from top to bottom;
the reinforcing structure is an inwards concave structure, and the depth of the concave structure is 0.8-2.0 mm.
10. A battery module comprising a plurality of cells, the battery module housing structure of any of claims 1-9, and a pair of end plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022550837.7U CN213717001U (en) | 2020-11-06 | 2020-11-06 | Battery module shell structure and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022550837.7U CN213717001U (en) | 2020-11-06 | 2020-11-06 | Battery module shell structure and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213717001U true CN213717001U (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022550837.7U Active CN213717001U (en) | 2020-11-06 | 2020-11-06 | Battery module shell structure and battery module |
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|---|---|
| CN (1) | CN213717001U (en) |
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- 2020-11-06 CN CN202022550837.7U patent/CN213717001U/en active Active
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