CN218602594U - Electric automobile battery pack shell made of composite material - Google Patents
Electric automobile battery pack shell made of composite material Download PDFInfo
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- CN218602594U CN218602594U CN202223003047.2U CN202223003047U CN218602594U CN 218602594 U CN218602594 U CN 218602594U CN 202223003047 U CN202223003047 U CN 202223003047U CN 218602594 U CN218602594 U CN 218602594U
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- plate
- cover plate
- box body
- battery pack
- composite material
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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 utility model discloses a composite material battery pack shell of an electric automobile, relating to the technical field of battery boxes and comprising a cover plate; the box body is detachably connected with the cover plate; the folded edges are arranged on the periphery of the cover plate and extend towards the direction close to the box body; a plurality of reinforcing ribs arranged on the cover plate; the convex part is arranged on the cover plate and is convex towards the direction far away from the box body; wherein, apron, hem, strengthening rib and bellying are integrated into one piece's fine reinforcing epoxy structure of long glass. The cover plate includes a plate main body; and a sealing part arranged around the plate main body. The technical effect of the utility model lies in that it can not only realize the lightweight under the prerequisite of proof strength, can also show the vibration noise performance of the apron that the high-speed driving in-process of improvement car arouses.
Description
Technical Field
The utility model relates to a battery case technical field, concretely relates to combined material's electric automobile battery package casing.
Background
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power, drives wheels by a motor to run, meets the requirements of safety regulations, and has the advantages of less greenhouse gas emission, high running stability, less energy consumption and the like.
The related electric automobile generally adopts lithium ion battery package system as the energy source, wherein, the battery package mainly includes power electricity core, module frame, electric wire and interface, thermal management system and BMS etc. to through apron and box body combination, in order to satisfy corresponding safety and functional requirement, however, the traditional manufacturing process of related apron generally is the panel beating stamping workpiece, and weight is big, and if the area of sheet metal panel beating is too big simultaneously, easily leads to the high-speed in-process of traveling of vehicle, and the great vibration noise of sheet resonance production leads to vehicle NVH performance to worsen.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a combined material's electric automobile battery package casing, it can not only realize the lightweight under the prerequisite of proof strength, can also show the vibration noise performance of the apron that the high-speed in-process that traveles of improvement car arouses.
In order to solve the above problem, the utility model provides a technical scheme does:
an electric vehicle battery pack case of composite material, comprising:
a cover plate;
the box body is detachably connected with the cover plate;
the folded edge is arranged on the periphery of the cover plate and extends towards the direction close to the box body;
the reinforcing ribs are arranged on the cover plate;
the protruding part is arranged on the cover plate and protrudes towards the direction far away from the box body;
the cover plate, the folded edge, the reinforcing ribs and the protruding portions are of a long glass fiber reinforced epoxy resin structure which is integrally formed, and the box body is of an aluminum alloy plate and section bar welding forming structure.
Optionally, the cover plate includes:
a plate main body;
a sealing part arranged around the plate main body;
the sealing part and the box body are detachably connected, the folded edge is arranged on the periphery of one side of the plate main body, the sealing part is far away from the periphery of one side of the plate main body, the reinforcing ribs and the protruding parts are arranged on the plate main body, and the plate main body, the sealing part, the folded edge, the reinforcing ribs and the protruding parts are of a long glass fiber reinforced epoxy resin structure which is integrally formed.
Optionally, the thickness of the sealing portion is greater than the thickness of the plate main body.
Optionally, the thickness of the sealing portion ranges from 2.0 mm to 2.2mm, and the thickness of the plate body ranges from 1.2mm to 1.4mm.
Optionally, the box body includes:
a bottom guard plate;
the side guard plate is connected to the periphery of the bottom guard plate;
wherein, the side guard plate and the cover plate are detachably connected.
Optionally, a plurality of channels are arranged in the bottom guard plate.
Optionally, a first partition plate and a second partition plate are arranged in the box body, the first partition plate is connected with the cover plate, and the second partition plate is opposite to the protruding portion.
Optionally, a first mounting hole is formed in the first partition plate, a second mounting hole is formed in the cover plate, and the first mounting hole is matched with the second mounting hole.
Optionally, a plurality of connector mounting holes are formed in both sides of the box body.
Optionally, a plurality of fixing holes are formed in the periphery of the box body.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
1) The folded edge is supported by the cover plate and extends towards the direction close to the box body, so that the folded edge is convenient to prevent external dust from entering the interior of the battery pack shell from the matching position of the cover plate and the box body, and the sealing performance of the battery pack shell is good;
2) The reinforcing ribs are used for increasing the strength of the cover plate and increasing the surface area of the cover plate, so that the heat dissipation performance of the cover plate is effectively increased;
3) The cover plate, the folded edge, the reinforcing ribs and the protruding part are of an integrally formed long glass fiber reinforced epoxy resin composite material structure, so that the integrity of the battery pack shell can be effectively improved, and the battery pack shell is light in weight;
4) After the long glass fiber reinforced epoxy resin composite material is cured and molded, the mechanical strength can reach the material strength of a sheet metal stamping part, but the weight is effectively reduced by 30 percent, so that the light weight effect is achieved;
5) Compared with a metal plate material, the cover plate made of the long glass fiber reinforced epoxy resin composite material has excellent corrosion resistance;
6) Compared with a sheet metal plate structure, the cover plate made of the long glass fiber reinforced epoxy resin composite material reduces sheet resonance noise easily generated by a sheet metal plate when a vehicle runs at a high speed;
7) Compared with a carbon fiber reinforced resin material product, the cover plate made of the long glass fiber reinforced epoxy resin composite material has the advantages that the material cost is effectively reduced, the long fiber on-line die pressing forming (LFT-D) process is simpler than an HP-RTM (high pressure resin transfer) process, and the mold cost and the equipment cost are greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of a composite material battery pack case of an electric vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cover plate according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a box body according to an embodiment of the present invention;
fig. 4 is a schematic view of a partial structure of a bottom protection plate according to an embodiment of the present invention;
FIG. 5 is a partial structural diagram of A in FIG. 1;
in the figure: 1. a cover plate; 11. folding edges; 12. reinforcing ribs; 13. a boss portion; 14. a plate main body; 15. a sealing part; 16. a second mounting hole; 2. a box body; 21. a bottom guard plate; 211. a channel; 22. a side guard plate; 23. a first clapboard; 231. a first mounting hole; 24. a second clapboard; 25. a connector mounting hole; 26. and (7) fixing holes.
Detailed Description
For a further understanding of the present invention, reference will be made to the drawings and examples for a detailed description of the invention.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. A plurality of technical schemes in the same embodiment and a plurality of technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is all in the scope of the utility model.
Example 1
With reference to fig. 1 to 5, the present embodiment provides a composite material battery pack case for an electric vehicle, including:
a cover plate 1;
a box body 2 detachably connected with the cover plate 1;
the folded edge 11 is arranged on the periphery of the cover plate 1, and the folded edge 11 extends towards the direction close to the box body 2;
a plurality of reinforcing ribs 12 arranged on the cover plate 1;
the convex part 13 is arranged on the cover plate 1, and the convex part 13 is convex towards the direction far away from the box body 2;
wherein, apron 1, hem 11, strengthening rib 12 and bellying 13 are the fine reinforcing epoxy structure of integrated into one piece's long glass, and box body 2 is aluminum alloy plate and section bar welded forming structure.
Specifically, the cover plate 1 and the box body 2 are combined into a battery pack shell and used for accommodating a power battery cell, a thermal management system and the like, and the cover plate 1 and the box body 2 are detachably connected and are convenient to disassemble and assemble, so that the power battery cell, the thermal management system and the like can be replaced or maintained in time; the folded edge 11 is supported by the cover plate 1, and the folded edge 11 extends towards the direction close to the box body 2, so that the folded edge 11 can prevent external dust from entering the battery pack shell from the matching part of the cover plate 1 and the box body 2, and the sealing performance of the battery pack shell is good; the reinforcing ribs 12 are used for increasing the strength of the cover plate 1 and increasing the surface area of the cover plate 1, so that the heat dissipation performance of the cover plate 1 is effectively increased; the bulge 13 is supported by the cover plate 1, and the bulge 13 bulges away from the box body 2, so that the distance between the bulge 13 and the box body 2 is conveniently increased, and the accommodating space of the battery pack shell is increased; because apron 1, hem 11, strengthening rib 12 and bellying 13 are integrated into one piece's long glass fiber reinforced epoxy composite structure, can effectively increase the wholeness of battery package casing, and realize the lightweight, wherein, the base material of composite is epoxy, the reinforcing material is long glass fiber, specifically adopt the online compression molding technology of composite, namely LFT-D technology, still have the flow simple, advantages such as shaping is of high quality and low in manufacturing cost, simultaneously, can also show the vibration noise performance of the apron that arouses among the high-speed driving process of car.
Further, the cover plate 1 includes:
a plate main body 14;
a sealing part 15 provided around the plate body 14;
wherein, sealing 15 and box body 2 can be dismantled and be connected, hem 11 is located sealing 15 and is kept away from all around board main part 14 one side, and on board main part 14 was all located to a plurality of strengthening ribs 12 and bellying 13, board main part 14, sealing 15, hem 11, strengthening rib 12 and bellying 13 were the fine reinforcing epoxy structure of long glass of integrated into one piece.
Specifically, board main part 14 is used for bearing sealing 15, because sealing 15 is located board main part 14 around, is convenient for lap 1 all around all to realize sealedly with box body 2 to it gets into inside the battery package casing from the cooperation department of lap 1 and box body 2 to prevent effectively that external dust from getting into.
Further, the thickness of the sealing portion 15 is larger than that of the plate main body 14.
Specifically, the lightweight of the whole cover plate 1 is facilitated on the premise that the strength of the sealing portion 15 is ensured.
Further, the thickness of the sealing portion 15 ranges from 2.0 to 2.2mm, and the thickness of the plate body 14 ranges from 1.2 to 1.4mm.
Specifically, the thickness of the seal portion 15 may be 2mm, 2.2mm, or the like, and is preferably 2.2mm; the thickness of the plate main body 14 may be 1.2mm, 1.4mm, or the like, and preferably 1.4mm.
Further, the case 2 includes:
a bottom guard plate 21;
a side guard plate 22 connected to the periphery of the bottom guard plate 21;
wherein the side guard plate 22 and the cover plate 1 are detachably connected.
Specifically, the bottom guard plate 21 is used for supporting the power battery cell, the thermal management system, and the like, and the side guard plate 22 is used for wrapping the power battery cell, the thermal management system, and the like.
Further, a plurality of channels 211 are provided in the bottom protection plate 21.
Specifically, the weight of the bottom guard plate 21 can be reduced, the bottom guard plate 21 is convenient to realize light weight, the using amount of the bottom guard plate 21 can be reduced, and materials are saved.
Furthermore, a first partition plate 23 and a second partition plate 24 are arranged in the box body 2, the first partition plate 23 is connected with the cover plate 1, and the second partition plate 24 is arranged opposite to the bulge 13.
Specifically, the first partition plate 23 and the second partition plate 24 are used for dividing the box body 2 into a plurality of intervals, so that the power core and the thermal management system can be conveniently divided.
Furthermore, a first mounting hole 231 is formed in the first partition plate 23, a second mounting hole 16 is formed in the cover plate 1, and the first mounting hole 231 is matched with the second mounting hole 16.
Specifically, the first mounting hole 231 and the second mounting hole 16 are used for connecting the first partition plate 23 and the cover plate 1 together through a fastener, so that the fastener is convenient for connecting the box body 2 and the cover plate 1 together.
Furthermore, both sides of the box body 2 are provided with a plurality of connector mounting holes 25.
Specifically, the connector mounting holes 25 are carried by the housing 2 and are used for electrical system connector mounting.
Further, a plurality of fixing holes 26 are formed around the box body 2.
Specifically, the fixing holes 26 are used for cooperating with fasteners to facilitate the mounting of the battery case 2 on the electric vehicle by the fasteners, and thus facilitate the mounting of the battery case on the electric vehicle by the fasteners.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a combined material's electric automobile battery package casing which characterized in that includes:
a cover plate;
the box body is detachably connected with the cover plate;
the folded edges are arranged on the periphery of the cover plate and extend towards the direction close to the box body;
the reinforcing ribs are arranged on the cover plate;
the convex part is arranged on the cover plate and is convex towards the direction far away from the box body;
the cover plate, the folded edge, the reinforcing ribs and the protruding portions are of a long glass fiber reinforced epoxy resin structure which is integrally formed, and the box body is of an aluminum alloy plate and section bar welding forming structure.
2. The composite material battery pack housing for an electric vehicle of claim 1, wherein the cover plate comprises:
a plate main body;
a sealing part arranged around the plate main body;
the sealing part and the box body are detachably connected, the folded edge is arranged on the periphery of one side, away from the sealing part, of the plate main body, the reinforcing ribs and the protruding part are arranged on the plate main body, and the plate main body, the sealing part, the folded edge, the reinforcing ribs and the protruding part are of an integrally formed long glass fiber reinforced epoxy resin structure.
3. The composite material battery pack housing for an electric vehicle of claim 2, wherein the thickness of the sealing portion is greater than the thickness of the plate body.
4. The composite battery pack housing for an electric vehicle according to claim 3, wherein the sealing portion has a thickness in the range of 2.0-2.2mm, and the plate body has a thickness in the range of 1.2-1.4mm.
5. The composite material battery pack housing for electric vehicles according to any one of claims 1-4, wherein the case comprises:
a bottom guard plate;
the side guard plate is connected to the periphery of the bottom guard plate;
wherein, the side guard plate and the cover plate are detachably connected.
6. The composite material battery pack housing for the electric vehicle as claimed in claim 5, wherein the bottom protection plate is provided with a plurality of channels therein.
7. The composite material battery pack shell for the electric vehicle as claimed in any one of claims 1 to 4, wherein a first partition plate and a second partition plate are arranged in the box body, the first partition plate is connected with the cover plate, and the second partition plate is arranged opposite to the protruding part.
8. The composite material battery pack shell for the electric vehicle as claimed in claim 7, wherein the first partition plate is provided with a first mounting hole, the second cover plate is provided with a second mounting hole, and the first mounting hole is matched with the second mounting hole.
9. The composite material battery pack shell for the electric vehicle as claimed in any one of claims 1 to 4, wherein the box body is provided with a plurality of connector mounting holes on both sides.
10. The composite material battery pack shell for the electric vehicle as claimed in any one of claims 1 to 4, wherein a plurality of fixing holes are formed around the box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223003047.2U CN218602594U (en) | 2022-11-09 | 2022-11-09 | Electric automobile battery pack shell made of composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223003047.2U CN218602594U (en) | 2022-11-09 | 2022-11-09 | Electric automobile battery pack shell made of composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218602594U true CN218602594U (en) | 2023-03-10 |
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ID=85406891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223003047.2U Active CN218602594U (en) | 2022-11-09 | 2022-11-09 | Electric automobile battery pack shell made of composite material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218602594U (en) |
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2022
- 2022-11-09 CN CN202223003047.2U patent/CN218602594U/en active Active
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