CN210897393U - Battery pack tray and battery pack - Google Patents
Battery pack tray and battery pack Download PDFInfo
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- CN210897393U CN210897393U CN201921865093.9U CN201921865093U CN210897393U CN 210897393 U CN210897393 U CN 210897393U CN 201921865093 U CN201921865093 U CN 201921865093U CN 210897393 U CN210897393 U CN 210897393U
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- frame
- battery pack
- tray
- crossbeam
- pack tray
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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 relates to a battery technology field, in particular to battery package tray and battery package, including bottom plate, frame and crossbeam, the bottom plate with frame sealing connection forms one end open-ended cavity, be provided with at least one in the cavity the crossbeam, the crossbeam with the frame is cold to be connected, the crossbeam material with the frame material is different. According to the battery pack tray, different materials are designed aiming at parts with different functions and performance requirements, and a proper connection mode is applied, so that the utilization rate of the materials and the structure is improved, and the requirements on the functions and the performance are met; the frame connects, and frame and beam etc. joint adopts cold connection scheme, reducible welding deformation's influence improves size precision, improves the qualification rate.
Description
Technical Field
The utility model relates to a battery technology field, in particular to battery package tray and battery package.
Background
With the increasingly serious energy crisis of the current society, the new energy automobile has good energy-saving and environment-friendly effects compared with the traditional power automobile, and is favored by more and more people. The battery pack tray assembly is used as a key part of a battery pack for bearing the battery module and connecting the whole vehicle, has high requirements on mechanical performance, functional safety, cost and the like, and provides high requirements on structural design and material selection of the battery pack tray.
At present, the structural design forms and the materials of the tray of the battery pack mainly comprise the following two types: pure aluminium alloy section bar tailor-welding structural style, frame, crossbeam and bottom plate etc. all select aluminium alloy material for use, connect the position at the frame and adopt direct butt joint form, connect with welded form through the aluminium alloy between crossbeam and the frame. The pure steel plate stamping and welding structure mode is adopted, the frame, the cross beam, the bottom plate, the reinforcing plate and the like are made of steel plate materials, and the frame, the cross beam, the bottom plate and the like are connected in a welding mode to form a battery pack tray assembly product.
The design scheme has the following defects: the frames and the cross beams and the frames are connected in a welding mode, but the connection strength of welding joints is poorer than that of base materials; in order to meet the size and functional requirements of battery pack installation, a bush and a large amount of machining are added at the connecting point of the battery pack and the installation seat, so that material waste and welding workload are increased; the frame, the cross beam and the reinforcing plate are stamped and welded by steel plates, so that the collision safety requirement of the frame is met, the section design is relatively complex, the production manufacturability is poor, and the overall quality of the tray is high; due to the fact that welding heat is large, deformation is large, and a large number of welding connection modes are adopted, tooling cost input is high, overall size precision is low, and qualified rate is low.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current battery package tray design material uses the wholeness ability surplus, and there is a large amount of welded problems in the junction.
In order to solve the technical problem, in a first aspect, an embodiment of the present application discloses a battery pack tray, which includes a bottom plate, a frame and a cross beam, wherein the bottom plate is connected with the frame in a sealing manner to form a cavity with an opening at one end, at least one cross beam is arranged in the cavity, the cross beam is connected with the frame in a cold manner, and the cross beam is made of different materials.
As an implementation mode, the frame is formed by bending a plate, and two ends of the plate are in cold connection.
In one embodiment, the frame comprises a plurality of plates or profiles, and the ends of the plurality of plates or profiles are sequentially cold-connected to form a closed frame.
Further, the battery pack tray further comprises a connecting piece, and the connecting piece is used for connecting the end parts of the frames; and/or the presence of a gas in the gas,
and the connection part of the frame and the cross beam.
Furthermore, the frame is made of aluminum.
Furthermore, the cross beam is made of steel.
Further, the battery pack tray further comprises a mounting seat, the mounting seat is in cold connection with the frame, and the mounting seat is used for mounting a battery pack.
Further, the mounting seat is an aluminum die casting or a composite material part.
Further, the composite material is carbon fiber.
In a second aspect, an embodiment of the present application discloses a battery pack, which includes a battery pack tray, a module, and a cover plate, wherein the battery pack tray is the above-mentioned battery pack tray;
the module is installed on the crossbeam, the apron with the battery package tray is connected and is formed airtight cavity.
By adopting the technical scheme, the battery pack tray and the battery pack have the following beneficial effects:
according to the battery pack tray, different materials are designed aiming at parts with different functions and performance requirements, and a proper connection mode is applied, so that the utilization rate of the materials and the structure is improved, and the requirements on the functions and the performance are met; the frame connects, and frame and beam etc. joint adopts cold connection scheme, reducible welding deformation's influence improves size precision, improves the qualification rate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a battery pack tray according to an embodiment of the present application;
the following is a supplementary description of the drawings:
10-a base plate; 20-a frame; 30-a cross beam; 40-mounting seat.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The battery package tray bears the weight of the battery module, connects the battery package key spare part of whole car, and the way among the prior art is to arrange a plurality of battery modules inside the tray, realizes holding, prevents effects such as shift, bearing, crashproof through the tray.
As shown in fig. 1, the embodiment of the present application provides a battery pack tray, which includes a bottom plate 10, a frame 20 and a cross beam 30, wherein the bottom plate 10 and the frame 20 are hermetically connected to form a cavity with an open end, at least one cross beam 30 is disposed in the cavity, the cross beam 30 is cold-connected to the frame 20, and the material of the cross beam 30 is different from that of the frame 20.
In the embodiment of the application, different materials are designed aiming at different functional and performance required parts of the battery pack tray, and a proper connection mode is applied, so that the materials and the structure meet the functional and performance requirements while the utilization rate is improved; the frame 20 joint, the frame 20 and the beam 30 and other connection joints adopt a cold connection scheme, so that the influence of welding deformation can be reduced, the size precision is improved, and the qualification rate is improved.
As shown in fig. 1, the bottom plate 10 serves as a cover for sealing the battery pack and for preventing dust and water. The bottom plate 10 can be made of light metal plate, optionally rolled aluminum plate, aluminum alloy plate, magnesium alloy plate, etc., and has a thickness of 0.1mm-5mm, and the thickness can be adjusted according to actual conditions. The bottom plate 10 and the frame 20 can be welded by friction stir welding or argon arc welding, etc., to seal the tray.
As shown in fig. 1, since the middle cross member 30 mainly takes charge of force transmission in the "Y" direction and bending resistance in the "Z" direction of the battery pack, the cross member 30 can be formed of a material with high strength, such as steel, magnesium alloy, etc. Optionally, the strength of the cross beam 30 is greater than that of the frame 20, preferably, the strength of the material of the cross beam 30 is greater than that of the material of the frame 20, and the cross beam 30 and the frame 20 are connected in a cold connection mode, that is, the method does not belong to a connection method of welding and hot-melt connection, and includes riveting, screwing, clamping, inserting and the like. In the embodiment of the present application, the cross beam 30 and the frame 20 may be connected by riveting or screwing, and when the two ends of the cross beam 30 are formed, the end portions may be pre-stamped with a connection plane, which is riveted or screwed with the frame 20. In some embodiments, the two ends of the beam 30 may be designed with hollow structures, and the hollow structures may be embedded with connectors to rivet the connectors with the frame 20. In other embodiments, the frame 20 can be designed with a snap-fit structure, and the end of the beam 30 can be snapped into the snap-fit structure of the frame 20.
The frame 20 is formed by bending a plate, and two ends of the plate are in cold connection.
In this embodiment, the frame 20 may be made of a plate or a section bar, and the plate or the section bar is bent according to the assembling requirement, and two ends of the plate or the section bar are connected together to form the frame 20. Optionally, the two ends of the plate or the section bar are connected through a connecting piece, the end part of the plate or the section bar can be designed into a hollow structure, the connecting piece can be embedded into the hollow structure, and the connecting piece can also be connected with the end part of the plate or the section bar through a rivet. In some embodiments, the frame 20 may further include a plurality of plates or profiles, and the ends of the plurality of plates or profiles are sequentially cold-connected to form a closed frame. The ends of the plates or profiles are likewise connected using the above-mentioned connecting elements. The embedded structural part is increased inside the link of frame 20, improves and connects intensity, and riveting, spiro union use quantity can be adjusted according to actual conditions.
The battery pack tray further comprises a connecting piece, and the connecting piece is used for connecting the end part of the frame 20; and/or the connection of the rim 20 to the beam 30.
In the embodiment of the application, the connecting block is applied to the junction of each part, the connecting piece respectively with two parts joint, embedded or riveting etc. of treating to be connected, the joint strength of junction can be strengthened to the connecting piece. The connecting piece can adopt composite materials such as high-pressure cast aluminum or carbon fiber, the structural design of the frame 20 can be optimized, and the lightweight and the cost reduction of the tray are realized.
The frame 20 is made of aluminum. The cross beam 30 is made of steel.
In the embodiment of the application, the frame 20 is formed by bending an aluminum profile, and the beam 30 is used as a bearing structure for enhancing the structural strength of the lower tray and bearing the force transmission in the Y direction and the bending resistance in the Z direction of the battery pack, so that the beam 30 can be formed by a high-strength steel plate with the thickness of 0.1mm-5mm, and in some embodiments, the beam 30 can be formed by a magnesium alloy plate. The material of crossbeam can be according to actual demand design. Compared with a battery pack tray made of pure aluminum profiles, the battery pack tray disclosed by the embodiment of the application is simple in design structure, the performance of materials is fully utilized, a welding structure is reduced, and the cost is reduced; relative steel sheet punching press's battery package tray, the battery package tray of this application embodiment has reduced tray weight, lightweight design, reduce cost when satisfying battery package tray performance.
As shown in fig. 1, the battery pack tray further includes a mounting seat 40, the mounting seat 40 is cold-connected to the frame 20, and the mounting seat 40 is used for mounting the battery pack.
In the embodiment of the present application, the mounting seat 40 is used for being connected with the whole vehicle, and is connected with the frame 20 through a suitable connection mode, such as clamping, splicing or connection through a connecting piece, and the number of the connection points can be adjusted according to specific conditions.
The mount 40 is an aluminum die cast or composite material part. The composite material is carbon fiber.
In the embodiment of the application, the mounting seat 40 for mounting the battery pack and the whole vehicle is formed by die castings or composite materials, the original connecting seat and the frame 20 are changed into a whole, and then the connecting seat is machined by a lathe, so that the machining and welding workload can be reduced, the material is saved, the usage amount of a die is reduced, and the cost is reduced.
The embodiment of the application discloses a battery pack, which comprises a battery pack tray, a module and a cover plate, wherein the battery pack tray is the battery pack tray;
in the embodiments of the present application, please refer to the embodiments of the battery pack tray described above for the description of the battery pack tray. Be equipped with the module mounting point on the crossbeam 30 of battery package tray, the module is installed on crossbeam 30, and the module is accomplished with the equipment of battery package tray after, covers the apron on the top of frame 20, and the apron is connected with battery package tray and is formed airtight cavity.
In the embodiment of the application, the frame 20 is connected, the frame 20 and the cross beam 30 are connected, and a plurality of cold connection schemes are adopted, so that the influence of welding deformation can be reduced, the size precision is improved, and the qualification rate is improved.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a battery package tray, its characterized in that includes bottom plate (10), frame (20) and crossbeam (30), bottom plate (10) with frame (20) sealing connection forms one end open-ended cavity, be provided with at least one in the cavity crossbeam (30), crossbeam (30) with frame (20) cold junction, crossbeam (30) material with frame (20) material is different.
2. The battery pack tray of claim 1, wherein: the frame (20) is formed by bending a plate or a section bar, and two ends of the plate or the section bar are in cold connection.
3. The battery pack tray of claim 1, wherein: the frame (20) comprises a plurality of plates or profiles, and the ends of the plates or profiles are sequentially connected in a cold mode to form a closed frame.
4. The battery pack tray according to claim 2 or 3, wherein: the battery pack tray further comprises a connecting piece, and the connecting piece is used for connecting the end parts of the frames (20); and/or the presence of a gas in the gas,
the connection part of the frame (20) and the cross beam (30).
5. The battery pack tray of claim 4, wherein: the frame (20) is made of aluminum.
6. The battery pack tray of claim 5, wherein: the cross beam (30) is made of steel.
7. The battery pack tray of claim 6, wherein: the battery pack tray further comprises a mounting seat (40), the mounting seat (40) is in cold connection with the frame (20), and the mounting seat (40) is used for mounting a battery pack.
8. The battery pack tray of claim 7, wherein: the mounting seat (40) is a die casting or a composite material part.
9. The battery pack tray of claim 8, wherein: the composite material is carbon fiber.
10. A battery pack comprising a battery pack tray, a module, and a cover plate, wherein the battery pack tray is the battery pack tray of any one of claims 1-9;
the module is installed on crossbeam (30), the apron with the battery package tray is connected and is formed airtight cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865093.9U CN210897393U (en) | 2019-10-31 | 2019-10-31 | Battery pack tray and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921865093.9U CN210897393U (en) | 2019-10-31 | 2019-10-31 | Battery pack tray and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210897393U true CN210897393U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921865093.9U Active CN210897393U (en) | 2019-10-31 | 2019-10-31 | Battery pack tray and battery pack |
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| CN (1) | CN210897393U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018288A (en) * | 2020-08-21 | 2020-12-01 | 常州瑞德丰精密技术有限公司 | Battery pack box, battery pack, electric automobile and energy storage device |
| CN112531261A (en) * | 2020-12-04 | 2021-03-19 | 东风(武汉)实业有限公司 | Battery pack made of dissimilar materials and adopting mixed process |
| CN113921978A (en) * | 2021-10-11 | 2022-01-11 | 宁波信泰机械有限公司 | Full cold junction battery box |
| CN114069138A (en) * | 2021-11-19 | 2022-02-18 | 威睿电动汽车技术(宁波)有限公司 | Connecting device and battery tray |
| CN114266120A (en) * | 2021-12-23 | 2022-04-01 | 湖南大学 | Rapid optimization design method for high-rigidity structure of light battery pack tray |
| CN114284629A (en) * | 2021-12-13 | 2022-04-05 | 威睿电动汽车技术(宁波)有限公司 | Battery installation component and battery pack |
| CN115764116A (en) * | 2022-08-27 | 2023-03-07 | 浙江米皇新材股份有限公司 | Production process of full-tenon-joint new energy automobile battery tray |
| WO2023032740A1 (en) * | 2021-08-31 | 2023-03-09 | 株式会社神戸製鋼所 | Battery case and method for manufacturing battery case |
-
2019
- 2019-10-31 CN CN201921865093.9U patent/CN210897393U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018288A (en) * | 2020-08-21 | 2020-12-01 | 常州瑞德丰精密技术有限公司 | Battery pack box, battery pack, electric automobile and energy storage device |
| CN112018288B (en) * | 2020-08-21 | 2023-04-07 | 常州瑞德丰精密技术有限公司 | Battery pack box, battery pack, electric automobile and energy storage device |
| CN112531261A (en) * | 2020-12-04 | 2021-03-19 | 东风(武汉)实业有限公司 | Battery pack made of dissimilar materials and adopting mixed process |
| WO2023032740A1 (en) * | 2021-08-31 | 2023-03-09 | 株式会社神戸製鋼所 | Battery case and method for manufacturing battery case |
| CN113921978A (en) * | 2021-10-11 | 2022-01-11 | 宁波信泰机械有限公司 | Full cold junction battery box |
| CN114069138A (en) * | 2021-11-19 | 2022-02-18 | 威睿电动汽车技术(宁波)有限公司 | Connecting device and battery tray |
| CN114069138B (en) * | 2021-11-19 | 2023-10-24 | 浙江吉利控股集团有限公司 | Connecting device and battery tray |
| CN114284629A (en) * | 2021-12-13 | 2022-04-05 | 威睿电动汽车技术(宁波)有限公司 | Battery installation component and battery pack |
| CN114284629B (en) * | 2021-12-13 | 2024-03-08 | 威睿电动汽车技术(宁波)有限公司 | Battery mounting assembly and battery pack |
| CN114266120A (en) * | 2021-12-23 | 2022-04-01 | 湖南大学 | Rapid optimization design method for high-rigidity structure of light battery pack tray |
| CN115764116A (en) * | 2022-08-27 | 2023-03-07 | 浙江米皇新材股份有限公司 | Production process of full-tenon-joint new energy automobile battery tray |
| CN115764116B (en) * | 2022-08-27 | 2023-06-02 | 浙江米皇新材股份有限公司 | Production process of full tenon joint new energy automobile battery tray |
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Effective date of registration: 20230206 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: Zhejiang liankong Technology Co.,Ltd. Address before: 315336 No. 198, Yinwan East Road, Hangzhou Bay New District, Ningbo, Zhejiang Province Patentee before: WEIRUI ELECTRIC AUTOMOBILE TECHNOLOGY (NINGBO) Co.,Ltd. |