CN110828730A - Battery box lower tray integrated with detachable water cooling plate assembly - Google Patents
Battery box lower tray integrated with detachable water cooling plate assembly Download PDFInfo
- Publication number
- CN110828730A CN110828730A CN201911053312.8A CN201911053312A CN110828730A CN 110828730 A CN110828730 A CN 110828730A CN 201911053312 A CN201911053312 A CN 201911053312A CN 110828730 A CN110828730 A CN 110828730A
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- CN
- China
- Prior art keywords
- water
- battery box
- cooling plate
- frame section
- lower tray
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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 invention belongs to the technical field of aluminum battery boxes of electric automobiles, and provides a battery box lower tray integrated with a detachable water cooling plate assembly. The invention has the advantages that the structure of the existing battery box body is improved, the lower tray of the battery box is divided into the main body parts of the frame assembly and the water-cooling plate assembly, and the lower tray of the battery box is assembled by matching the cold connection technology with the gluing technology, so that the aim of maintaining and replacing the water-cooling plate assembly at the bottom is fulfilled while the safety performance of the lower tray of the battery is ensured.
Description
Technical Field
The invention belongs to the technical field of aluminum battery boxes of electric vehicles, and particularly relates to a battery box lower tray integrated with a detachable water cooling plate assembly.
Background
Along with the increasing popularization of new energy automobiles, a battery automobile battery box body is used as an external carrier of an internal battery module and various electrical appliance elements, the automobile is required to be ensured to be protected from being damaged by various factors under different working conditions, on the other hand, the current lithium ion battery is sensitive to the working temperature in the battery box, the battery can play stable performance only in a proper temperature environment, and how to control the temperature of the battery inside the battery box body in a reasonable range all the time is an important technical consideration factor. The design idea of the mainstream at present is to integrate a water cooling system on a battery box, and the arrangement of the water cooling system in the battery box often brings some potential safety hazards, for example, the coolant leaks into the battery box to cause the problem of short circuit of an internal circuit, how to better balance the safety and the functionality of the cooling system of the battery box, which is an increasingly important part in the design of the battery box, the battery box of the mainstream passenger vehicle is mainly arranged at the bottom of the vehicle body, and in the ordinary use of the vehicle, the possibility that a chassis of the vehicle body is subjected to various impacts or impacts is higher, so that after the battery box at the bottom of the vehicle body is damaged by the impacts, a designer of the battery box needs to consider well, how to maintain the battery box at the lowest possible cost while protecting internal batteries and electrical elements. At present common aluminium section class battery box integrated bottom water-cooling board assembly on the market, adopt modes such as welding to put together water-cooling board assembly and frame in the main part, this can directly lead to the water-cooling board of bottom to go up the plane degree variation, and then lead to paining the heat conduction layer thickness on water-cooling board upper portion inhomogeneous, influence the cooling effect in each region on cooling plate upper portion, finally lead to the difference in temperature between each battery to increase, influence battery system's life, and lower tray is after welding into an organic whole, local region's impaired, can lead to scrapping of whole lower tray, can only maintain through directly changing whole tray, and the cost is higher.
Disclosure of Invention
The invention aims to solve the technical problem that the lower tray of the battery box integrated with the detachable water-cooling plate assembly is divided into 2 main body parts, namely a frame assembly and the water-cooling plate assembly, of the lower tray of the battery box, and the lower tray of the battery box is assembled by matching a cold connection technology with a glue joint technology, so that the aim of maintaining and replacing the water-cooling plate assembly at the bottom is fulfilled while the safety performance of the lower tray of the battery is ensured.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an integrated tray under battery box that can dismantle water-cooling board assembly, its characterized in that includes battery box frame assembly part and an at least water-cooling board assembly part, battery box frame assembly part form by a plurality of frame section bars and through the welding of concatenation equipment back, have the gluey groove structure on the frame section bar and scribble the joint sealant in advance and the structure is glued, water-cooling board assembly part pressfitting forms tray under the battery box to battery box frame assembly part and through locking connection.
In tray under foretell integrated battery box that can dismantle water-cooling board assembly, water-cooling board assembly part including two aluminium extrusion section material boards, two aluminium extrusion section material boards pass through the friction stir welding and are in the same place, water-cooling board rear end plate and water-cooling board front end plate and integrative welding are installed respectively to the both ends after two aluminium extrusion section material boards merge to form S-shaped runner structure at the inside die cavity of water-cooling board assembly part, install first water injection well choke joint and second water injection well choke joint on aluminium extrusion section material board, first water injection well choke joint and second water injection well choke joint all communicate with each other with S-shaped runner structure.
In the above lower tray of the battery box integrated with the detachable water cooling plate assembly, the frame assembly components of the battery box include a first peripheral frame profile, a second peripheral frame profile, a third peripheral frame profile, a fourth peripheral frame profile, a first cross frame profile and a second cross frame profile, each frame profile is formed by aluminum alloy extrusion, the bottom of the extrusion section of the first peripheral frame profile, the bottom of the extrusion section of the second peripheral frame profile, the bottom of the extrusion section of the third peripheral frame profile, the bottom of the extrusion section of the fourth peripheral frame profile, the bottom of the extrusion section of the first cross frame profile and the bottom of the extrusion section of the second cross frame profile are provided with glue groove structures, and finally the bottom of the frame structure surrounded by the frame profiles is formed into a glue groove closed loop structure.
In the above lower tray of the battery box integrated with the detachable water cooling plate assembly, the glue groove structure of the peripheral frame section bar is provided with the sealant, and the glue groove structure of the cross frame section bar is provided with the structural glue.
In the lower tray of the battery box integrated with the detachable water cooling plate assembly, the locking connection is one of rotary tapping riveting, bolt connection, rivet nut connection and self-plugging rivet connection.
Preferably, in the lower tray of the battery box integrated with the detachable water cooling plate assembly, the locking connection is a rotary tapping riveting connection.
In foretell tray under battery box of water-cooling board assembly can be dismantled in integration, the marginal position of aluminium extrusion section bar board, water-cooling board rear end plate and water-cooling board front end plate reserve step-like structure, the water-cooling board assembly part a week that the final combination formed forms encircleed step-like structure, rotatory tapping riveting be located step-like structure department.
Compared with the prior art, the invention has the advantages that the structure of the existing battery box body is improved, the lower tray of the battery box is divided into the main body parts of the frame assembly and the water-cooling plate assembly, and the lower tray of the battery box is assembled by matching a cold connection technology with a gluing technology, so that the safety performance of the lower tray of the battery is ensured, and meanwhile, the aim of maintaining and replacing the water-cooling plate assembly at the bottom is fulfilled.
Drawings
FIG. 1 illustrates a schematic view of a battery housing tray component including a frame structure and a water-cooled plate structure;
FIG. 2 illustrates an exploded view of the battery box tray component of FIG. 1;
FIG. 3 illustrates a detailed transverse cross-sectional view through the tray component of FIG. 1 along line A-B;
FIG. 4 illustrates a detailed longitudinal cross-sectional view through the tray portion of FIG. 1 along line C-D;
FIG. 5 illustrates a schematic perspective view of a water cooled plate assembly;
FIG. 6 illustrates an exploded view of the water cooled panel assembly of FIG. 5;
FIG. 7 illustrates a transverse cross-sectional view through the water-cooled plate assembly of FIG. 5 along line E-F;
FIG. 8 illustrates a longitudinal cross-sectional view through the water-cooled plate assembly of FIG. 5 along line G-H.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
In the figure, a battery box lower tray 1; a battery box frame assembly component 2; a water-cooled plate assembly member 3; 4, sealing gum; 5, structural adhesive; rotating, tapping and riveting 6; an aluminum extruded profile plate 7; a water-cooled plate front end plate 8; a water-cooled plate rear end plate 9; a water nozzle joint 10; a first water nozzle joint 10.1; a second water nozzle joint 10.2; a frame profile 11; a first perimeter frame profile 11.1; a second perimeter frame profile 11.2; a third perimeter frame profile 11.3; a fourth perimeter frame profile 11.4; a first cross frame profile 11.5; a second cross frame profile 11.6; a glue slot structure 12; a step-like structure 13.
As shown in fig. 1 and fig. 2, the battery box lower tray integrated with the detachable water cooling plate assembly comprises a battery box frame assembly part 2 and at least one water cooling plate assembly part 3, wherein the battery box frame assembly part 2 is formed by splicing, assembling and welding a plurality of frame profiles 11, before the water cooling plate assembly part 3 is assembled to the battery box frame assembly part 2, the frame profiles 11 of the battery box frame assembly part 2 are provided with a glue groove structure 12 and are pre-coated with a sealant 4 and a structural glue 5, then the water cooling plate assembly part 3 and the battery box frame assembly are pressed, the water cooling plate assembly part 3 and the battery box frame assembly part 2 are finally fixed through locking connection to form the battery box lower tray 1, wherein the battery box lower tray 1 is mainly divided into two independent parts of the battery box frame assembly part 2 and the water cooling plate assembly part 3, two assemblies are combined into a final semi-closed tray structure through a cold connecting technology and a glue sealing technology, wherein cold connection of locking connection can be one of rotary tapping riveting 6, bolt connection, rivet nut connection and self-plugging rivet connection, the rotary tapping riveting 6 is also called as FSD connection in the embodiment, and the water cooling plate assembly component 3 and the battery box frame assembly component 2 are fixed through an FDS (fully drawn yarn) connecting technology (rotary tapping riveting 6), the traditional welding connecting technology is replaced, and size deformation influence caused by welding and other hot connecting processing technologies is reduced.
As shown in fig. 3 and 4, the battery box frame assembly component 2 includes a first peripheral frame profile 11.1, a second peripheral frame profile 11.2, a third peripheral frame profile 11.3, a fourth peripheral frame profile 11.4, a first cross frame profile 11.5, and a second cross frame profile 11.6, each of which is extruded from an aluminum alloy, and has a plurality of different extruded sections, and the extruded sections of the first peripheral frame profile 11.1, the second peripheral frame profile 11.2, the third peripheral frame profile 11.3, the fourth peripheral frame profile 11.4, the first cross frame profile 11.5, and the second cross frame profile 11.6 have a glue groove structure 12 on the bottom, and finally form a closed glue groove structure on the bottom of the surrounding frame structure, wherein the glue groove structure 12 of the peripheral frame profile has a sealant 4, and the glue groove structure 12 of the cross frame profile has a structural sealant 5.
As shown in fig. 5 and 6, the water-cooling plate assembly component 3 includes two aluminum extruded section plates 7, the two aluminum extruded section plates 7 are welded together by friction stir welding, the water-cooling plate assembly component 3 is formed by welding aluminum extruded sections, the body has higher strength, and can reinforce the frame assembly structure after being assembled with the frame assembly, so as to improve the overall strength of the lower tray 1 of the battery box, the two combined ends of the two aluminum extruded section plates 7 are respectively provided with a water-cooling plate rear end plate 9 and a water-cooling plate front end plate 8 and are integrally welded, the integral welding is adopted, the sealing performance of the internal flow channel is ensured, an S-shaped flow channel structure is formed in the internal cavity of the water-cooling plate assembly component 3, the aluminum extruded section plates 7 are provided with a first water nozzle joint 10.1 and a second water nozzle joint 10.2, the first water nozzle joint 10.1 and the second water nozzle joint 10.2 are both communicated with the S-shaped flow channel structure, the water cooling plate assembly part 3 comprises water nozzle connectors 10 which are in and out, after the water nozzle connectors 10 and the battery box frame are assembled into the lower tray, the water nozzle connectors 10 of the water cooling plate assembly are distributed outside the battery box lower tray 1, the water nozzle connectors 10 of the water cooling plate assembly are combined with a water cooling pipeline of a vehicle outside the battery box lower tray 1, and the risk that cooling liquid leaks into the lower battery box through the water pipe connectors or the cooling pipeline is reduced.
As shown in fig. 7 and 8, step-shaped structures 13 are reserved at the edge positions of an aluminum extruded section plate 7, a water-cooling plate rear end plate 9 and a water-cooling plate front end plate 8, a surrounding step-shaped structure 13 is formed around a finally-combined water-cooling plate assembly part 3, a rotary tapping riveting 6 is located at the step-shaped structure 13, the rotary tapping riveting 6 part can be disassembled after the water-cooling plate assembly part 3 is damaged, the old sealant 4, the structural adhesive 5 and the damaged water-cooling plate assembly part 3 are replaced, the rotary tapping riveting 6 part is re-assembled, maintenance and replacement of the water-cooling plate assembly are completed, the water-cooling plate assembly part 3 is arranged at the bottom of a battery box lower tray 1, when the battery box lower tray 1 is impacted by the bottom, the internal cavity structure of the aluminum extruded section on the water-cooling plate assembly part 3 can be used as a buffer layer, and energy absorption effect is achieved through the, thereby the protection is in inside battery module and components and parts of battery box, and water-cooling board assembly part 3 designs into detachable construction simultaneously, receives the water-cooling board assembly part 3 and receives to strike or other reasons and lead to water-cooling board assembly trouble and influence the back of using, can maintain through the water-cooling board assembly of replacement corresponding position, need not to replace tray 1 under the whole battery box, has reduced cost of maintenance.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.
Claims (7)
1. The utility model provides an integrated tray under battery box that can dismantle water-cooling board assembly, its characterized in that includes battery box frame assembly part and an at least water-cooling board assembly part, battery box frame assembly part form by a plurality of frame section bars and through the welding of concatenation equipment back, have the gluey groove structure on the frame section bar and scribble the joint sealant in advance and the structure is glued, water-cooling board assembly part pressfitting forms tray under the battery box to battery box frame assembly part and through locking connection.
2. The lower tray of the battery box integrated with the detachable water-cooling plate assembly according to claim 1, wherein the water-cooling plate assembly comprises two aluminum extruded section plates, the two aluminum extruded section plates are welded together through friction stir welding, a water-cooling plate rear end plate and a water-cooling plate front end plate are respectively installed at two ends of the two combined aluminum extruded section plates and are welded integrally, an S-shaped flow passage structure is formed in a cavity inside the water-cooling plate assembly, a first water nozzle connector and a second water nozzle connector are installed on the aluminum extruded section plates, and the first water nozzle connector and the second water nozzle connector are both communicated with the S-shaped flow passage structure.
3. The lower tray of battery box integrated with detachable water-cooling plate assembly as claimed in claim 1 or 2, wherein the components of the frame assembly of battery box include a first peripheral frame section, a second peripheral frame section, a third peripheral frame section, a fourth peripheral frame section, a first cross frame section and a second cross frame section, each frame section is formed by extrusion of aluminum alloy, the bottom of the extrusion section of the first peripheral frame section, the second peripheral frame section, the third peripheral frame section, the fourth peripheral frame section, the first cross frame section and the second cross frame section is provided with a glue groove structure, and finally the bottom of the frame structure which is surrounded forms a glue groove closed loop structure.
4. The battery box lower tray integrated with the detachable water cooling plate assembly as claimed in claim 3, wherein the glue groove structure of the peripheral frame section bar is provided with a sealant, and the glue groove structure of the cross frame section bar is provided with a structural glue.
5. The lower tray of the battery box integrated with the detachable water cooling plate assembly according to claim 4, wherein the locking connection is one of a rotary tapping riveting, a bolt connection, a rivet nut connection and a blind rivet connection.
6. The battery box lower tray integrated with the detachable water cooling plate assembly according to claim 5, wherein the locking connection is a spin-tap rivet connection.
7. The lower tray of the battery box integrated with the detachable water-cooling plate assembly as claimed in claim 6, wherein step-shaped structures are reserved at the edge positions of the aluminum extruded section plate, the rear end plate of the water-cooling plate and the front end plate of the water-cooling plate, a surrounding step-shaped structure is formed around the finally combined water-cooling plate assembly, and the rotary tapping riveting is located at the step-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053312.8A CN110828730A (en) | 2019-10-31 | 2019-10-31 | Battery box lower tray integrated with detachable water cooling plate assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911053312.8A CN110828730A (en) | 2019-10-31 | 2019-10-31 | Battery box lower tray integrated with detachable water cooling plate assembly |
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| CN110828730A true CN110828730A (en) | 2020-02-21 |
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| CN201911053312.8A Pending CN110828730A (en) | 2019-10-31 | 2019-10-31 | Battery box lower tray integrated with detachable water cooling plate assembly |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111525213A (en) * | 2020-05-08 | 2020-08-11 | 东风汽车有限公司 | A casing, power battery package for power battery |
| CN113823871A (en) * | 2021-10-11 | 2021-12-21 | 宁波信泰机械有限公司 | Tray under integrated water cooling system's aluminium alloy battery box |
| WO2022062605A1 (en) * | 2020-09-27 | 2022-03-31 | 比亚迪股份有限公司 | Tray and battery pack having same |
| CN114976348A (en) * | 2022-05-11 | 2022-08-30 | 无锡威唐新能源科技有限公司 | A integral type tray for car battery box |
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| CN110364655A (en) * | 2019-07-17 | 2019-10-22 | 芜湖天量电池系统有限公司 | A kind of power battery pack arrangement and its packaging technology |
| CN210897394U (en) * | 2019-10-31 | 2020-06-30 | 宁波敏实汽车零部件技术研发有限公司 | Battery box lower tray integrated with detachable water cooling plate assembly |
| CN213501812U (en) * | 2020-10-30 | 2021-06-22 | 重庆长安新能源汽车科技有限公司 | Battery tray and vehicle |
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| CN105472949A (en) * | 2015-12-28 | 2016-04-06 | 上海汽车制动器有限公司 | Battery water-cooling plate structure |
| CN108075078A (en) * | 2017-11-22 | 2018-05-25 | 江苏恒义汽配股份有限公司 | A kind of processing method of new energy car battery box body tray frame assembly |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111525213A (en) * | 2020-05-08 | 2020-08-11 | 东风汽车有限公司 | A casing, power battery package for power battery |
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| WO2022062605A1 (en) * | 2020-09-27 | 2022-03-31 | 比亚迪股份有限公司 | Tray and battery pack having same |
| CN113823871A (en) * | 2021-10-11 | 2021-12-21 | 宁波信泰机械有限公司 | Tray under integrated water cooling system's aluminium alloy battery box |
| CN114976348A (en) * | 2022-05-11 | 2022-08-30 | 无锡威唐新能源科技有限公司 | A integral type tray for car battery box |
| CN114976348B (en) * | 2022-05-11 | 2023-10-10 | 无锡威唐新能源科技有限公司 | Integrated tray for automobile battery box |
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