CN113972418A - Integrated water-cooling extrusion large-bottom-plate battery box - Google Patents
Integrated water-cooling extrusion large-bottom-plate battery box Download PDFInfo
- Publication number
- CN113972418A CN113972418A CN202111354177.8A CN202111354177A CN113972418A CN 113972418 A CN113972418 A CN 113972418A CN 202111354177 A CN202111354177 A CN 202111354177A CN 113972418 A CN113972418 A CN 113972418A
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- water
- extrusion part
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- extrusion
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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
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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
- H01M10/6554—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
- H01M10/656—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
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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
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
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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
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
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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
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of battery accessories, in particular to an integrated water-cooling extrusion large-bottom-plate battery box which comprises a large-bottom-plate welding assembly, a water-cooling plug assembly and a whole vehicle mounting bracket; the large bottom plate welding assembly comprises a first extrusion part, a second extrusion part and a water-cooling flow channel; the first extrusion part and the second extrusion part are both of plate-shaped structures with hollow interiors, at least one second extrusion part is arranged, the first extrusion part is provided with a pair of plate-shaped structures which are welded on two sides of the second extrusion part in parallel, and the first extrusion part and the second extrusion part form a plate-shaped integral structure together; the water-cooling flow channel is arranged at the hollow inner cavities of the first extrusion part and the second extrusion part along the length direction of the first extrusion part and the second extrusion part, and two ends of the water-cooling flow channel are blocked by water-cooling plug assemblies; the whole vehicle mounting bracket is arranged on the end face of the large bottom plate welding assembly. The scheme has good ball impact resistance and a water cooling structure, is good in safety and is convenient to integrate to the whole vehicle.
Description
Technical Field
The invention relates to the technical field of battery accessories, in particular to an integrated water-cooling extrusion large-bottom-plate battery box.
Background
With the vigorous development of new energy automobiles, the competition is more and more intense, and each host factory starts to establish a platform automobile model, so that how to make the platform more attractive, and considerable novelty and innovation are needed. In addition, the battery pack needs to have enough protection capacity for the battery cell due to the endless emergence of new energy vehicles such as spontaneous combustion or fire explosion after heavy impact, wherein the bottom ball impact is the most concern.
The existing battery cases or battery cases have the following problems:
1. the number and the types of parts are multiple, the welding process is complex, and the cost is higher.
2. The bottom ball impact resistance is weaker, and the bottom ball impact resistance is mainly realized by adopting thicker plates, so that the weight and the cost are increased.
3. With the integration of whole car weakly, battery case itself has higher intensity to protect inside module not destroyed, and automobile body chassis has the function of protection battery package again, causes the design surplus, is unfavorable for losing weight.
Disclosure of Invention
Based on this, it is necessary to provide an integrated water-cooling extruded large-bottom battery box aiming at the problems in the prior art.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
an integrated water-cooling extruded large-bottom-plate battery box comprises a large-bottom-plate welding assembly, a water-cooling plug assembly and a whole vehicle mounting bracket; the large bottom plate welding assembly comprises a first extrusion part, a second extrusion part and a water-cooling flow channel; the first extrusion part and the second extrusion part are both of plate-shaped structures with hollow interiors, at least one second extrusion part is arranged, the first extrusion part is provided with a pair of plate-shaped structures which are welded on two sides of the second extrusion part in parallel, and the first extrusion part and the second extrusion part form a plate-shaped integral structure together; the water-cooling flow channel is arranged at the hollow inner cavities of the first extrusion part and the second extrusion part along the length direction of the first extrusion part and the second extrusion part, and two ends of the water-cooling flow channel are blocked by water-cooling plug assemblies; the whole vehicle mounting bracket is arranged on the end face of the large bottom plate welding assembly.
Preferably, the second extrusion parts are at least two and are arranged side by side, the joints are connected through welding, and the two second extrusion parts on the outermost sides are welded with the first extrusion parts.
Preferably, the welding is FSW welding.
Preferably, the number of the water-cooling flow passages is five, and the five water-cooling flow passages are distributed in the hollow inner cavities of the first extrusion part and the second extrusion part in parallel at equal intervals along the width direction; the water-cooling plug assembly comprises a first water-cooling plug with two ports, a second water-cooling plug with three ports and a third water-cooling plug with five ports; the first water-cooling plug and the second water-cooling plug jointly plug five runner ports at one end of the first extrusion part and one end of the second extrusion part, and the third water-cooling plug plugs the other end of the five runner ports; the first water-cooling plug and the second water-cooling plug are both provided with a series connection structure.
Preferably, the first extrusion part and the second extrusion part are uniformly distributed along the length direction and are provided with a plurality of bushings in a riveting mode, and the axes of the bushings are perpendicular to the end faces of the first extrusion part and the second extrusion part.
Preferably, a bottom large nut with a threaded end extending upwards out of the end face of the large bottom plate welding assembly is installed at the welding seam of the large bottom plate welding assembly, and the bottom large nut is in threaded connection with the whole vehicle mounting bracket.
Compared with the prior art, the beneficial effect of this application is:
1. this patent has designed a big bottom plate battery box scheme of extruding of integrated water-cooling runner, and big bottom plate battery box forms through the FSW welding through four general bottom plates of extruding the cross-section, and part kind and quantity are few, reduce cost.
2. This patent bottom plate has integrateed the water-cooling structure, satisfies the cooling function when realizing that the box bears.
3. This patent is for extruding big bottom plate, and length direction can stretch out and draw back as required, realizes the platformization advantage.
4. The section of the large bottom plate is in a large hollow-out form, so that the bottom ball impact resistance is well realized.
5. The scheme of the large bottom plate is flattened, and the height of the battery box can be reduced integrally.
Drawings
FIG. 1 is a schematic view of a large floor cell box axis;
FIG. 2 is an exploded schematic view of a large floor battery box;
FIG. 3 is a schematic view of a large floor welding assembly;
FIG. 4 is a schematic cross-sectional view of an extruded single piece forming a large floor welding assembly;
FIG. 5 is a FSW tailor welded version of the large floor welding assembly;
FIG. 6 is a schematic view of a vehicle mounting bracket mounting arrangement;
fig. 7 is a schematic view of the connection manner of the connecting point bushing of the whole vehicle.
The reference numbers in the figures are:
1-large bottom plate welding assembly; 101-a water-cooling flow channel; 102-FSW welding; 103-a first extrusion; 104-a second extrusion;
2-a bushing;
3-a first water-cooling plug;
4-a second water-cooling plug;
5-a third water-cooling plug;
6, mounting a bracket for the whole vehicle;
7-big bottom nut;
8-sealing ring.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1-6:
an integrated water-cooling extruded large-bottom-plate battery box comprises a large-bottom-plate welding assembly 1, a water-cooling plug assembly and a whole vehicle mounting bracket 6; the large bottom plate welding assembly 1 comprises a first extrusion part 103, a second extrusion part 104 and a water-cooling flow channel 101; the first extrusion part 103 and the second extrusion part 104 are both of plate-shaped structures with hollow interiors, at least one second extrusion part 104 is arranged, the first extrusion part 103 is provided with a pair of plate-shaped structures which are welded on two sides of the second extrusion part 104 in parallel, and the first extrusion part 103 and the second extrusion part 104 jointly form a plate-shaped integral structure; the water-cooling flow channel 101 is arranged at the hollow inner cavities of the first extrusion part 103 and the second extrusion part 104 along the length direction of the first extrusion part 103 and the second extrusion part 104, and two ends of the water-cooling flow channel are blocked by water-cooling plug assemblies; the whole vehicle mounting bracket 6 is mounted on the end face of the large bottom plate welding assembly 1.
Based on the above embodiment, the overall structure formed by the first extrusion part 103 and the second extrusion part 104 of the hollow structures connected together in a welding manner has the effect of resisting a bottom ball machine, and simultaneously reduces the overall weight of the structure. An internal longitudinal and transverse beam structure is eliminated, and a water cooling system is integrated and is connected in series through an external water cooling plug assembly. The extrusion molding mode has good extensibility in the longitudinal direction, the module can be protected by the whole vehicle in a frameless mode, and the large bottom plate welding assembly 1 only bears the function of loading the module.
Further, in order to solve the problem of how to construct the large floor welding assembly 1 in the case of using a plurality of second extrusion parts 104:
the second extruded parts 104 are at least two, are arranged side by side, are connected by welding at the connection positions, and are welded with the first extruded parts 103 by the two outermost second extruded parts 104.
Based on the above embodiments, the large bottom plate welding assembly 1 formed by four hollow-out extrusion structures is formed by connecting the first extrusion parts 103 on two sides with the pair of second extrusion parts 104 as shown in the figures, and the number of the second extrusion parts 104 can be increased according to actual needs.
Further, in order to solve the problem of how to perform welding better:
the weld was FSW weld 102.
Based on the above embodiments, the FSW welding 102 used in the present application is also called friction stir welding, and the microstructure change of the heat affected zone of the welded joint is small. The residual stress ratio is low, and a welding workpiece is not easy to deform; can finish welding of longer welding seams, large sections and different positions at one time. The joint is high. The operation process is convenient to realize mechanization and automation, the equipment is simple, the energy consumption is low, the efficiency is high, and the requirement on the operation environment is low. And welding wires are not needed to be added, an oxidation film is not needed to be welded before welding when the aluminum alloy is welded, protective gas is not needed, and the cost is low. The material sensitive to welding and hot cracking is suitable for welding dissimilar materials. The welding process is safe, pollution-free, smoke-free and radiation-free. In addition, the welding effect can be realized by adopting MIG welding, laser welding and the like.
Further, in order to solve the problem how to connect the water-cooling flow channel 101 to the water-cooling pipeline in series through the water-cooling plug assembly, the following steps are included:
the number of the water-cooling flow channels 101 is five, and the five water-cooling flow channels are distributed in the hollow inner cavities of the first extrusion part 103 and the second extrusion part 104 in parallel at equal intervals along the width direction; the water-cooling plug assembly comprises a first water-cooling plug 3 with two ports, a second water-cooling plug 4 with three ports and a third water-cooling plug 5 with five ports; the first water-cooling plug 3 and the second water-cooling plug 4 plug five channel openings at one ends of the first extrusion part 103 and the second extrusion part 104 together, and the third water-cooling plug 5 plugs the other ends of the five channel openings; the first water-cooling plug 3 and the second water-cooling plug 4 are both in series connection.
Based on the above embodiment, the first water-cooling plug 3 and the second water-cooling plug 4 of the present application have connecting pipes connected in series with the water-cooling pipeline, and when the first water-cooling plug 3, the second water-cooling plug 4 and the third water-cooling plug 5 plug the runner opening through the ports, the connecting pipes are connected to the water-cooling pipeline, so that the required series-connection water-cooling effect can be realized.
Further, in order to solve the problem of how to realize the connection between the large bottom plate welding assembly 1 and the whole vehicle:
the first extrusion part 103 and the second extrusion part 104 are uniformly connected with a plurality of bushings 2 along the length direction in a riveting manner, and the axes of the bushings 2 are perpendicular to the end surfaces of the first extrusion part 103 and the second extrusion part 104.
Based on the above embodiments, the present application solves the above problems by riveting the bushing 2 in advance on the first extrusion part 103 and the second extrusion part 104, and then installing the whole large floor welding assembly 1 on the whole vehicle through the bushing 2.
Further, in order to solve the problem how to conveniently install the whole vehicle mounting bracket 6 on the large bottom plate welding assembly 1:
the welding seam of the large bottom plate welding assembly 1 is provided with a bottom large nut 7 with a threaded end extending upwards out of the end face of the large bottom plate welding assembly 1, and the bottom large nut 7 is in threaded connection with the whole vehicle mounting bracket 6.
Based on the above embodiment, this application will put in order car installing support 6 and fix in big bottom plate welding assembly 1's welding seam department through big nut 7 in bottom, can conveniently with trading whole car installing support 6, easy dismounting. The contact point of the whole vehicle mounting bracket 6 and the end face of the large bottom plate welding assembly 1 is also provided with a sealing ring 8 to improve the sealing property.
The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. An integrated water-cooling extruded large-bottom-plate battery box is characterized by comprising a large-bottom-plate welding assembly, a water-cooling plug assembly and a whole vehicle mounting bracket; the large bottom plate welding assembly comprises a first extrusion part, a second extrusion part and a water-cooling flow channel; the first extrusion part and the second extrusion part are both of plate-shaped structures with hollow interiors, at least one second extrusion part is arranged, the first extrusion part is provided with a pair of plate-shaped structures which are welded on two sides of the second extrusion part in parallel, and the first extrusion part and the second extrusion part form a plate-shaped integral structure together; the water-cooling flow channel is arranged at the hollow inner cavities of the first extrusion part and the second extrusion part along the length direction of the first extrusion part and the second extrusion part, and two ends of the water-cooling flow channel are blocked by water-cooling plug assemblies; the whole vehicle mounting bracket is arranged on the end face of the large bottom plate welding assembly.
2. The integrated water-cooled extruded large-bottom plate battery box according to claim 1, wherein the number of the second extruded parts is at least two, the second extruded parts are arranged side by side and connected with each other by welding, and the two outermost second extruded parts are welded with the first extruded part.
3. An integrated water-cooled extruded large floor battery box as claimed in claim 1, wherein the welding is FSW welding.
4. The integrated water-cooling extruded large-bottom plate battery box according to claim 1, wherein the number of the water-cooling flow channels is five, and the five water-cooling flow channels are distributed in the hollow inner cavities of the first extrusion part and the second extrusion part side by side at equal intervals along the width direction; the water-cooling plug assembly comprises a first water-cooling plug with two ports, a second water-cooling plug with three ports and a third water-cooling plug with five ports; the first water-cooling plug and the second water-cooling plug jointly plug five runner ports at one end of the first extrusion part and one end of the second extrusion part, and the third water-cooling plug plugs the other end of the five runner ports; the first water-cooling plug and the second water-cooling plug are both provided with a series connection structure.
5. The integrated water-cooling extruded large-bottom-plate battery box according to claim 1, wherein the first extrusion part and the second extrusion part are uniformly distributed along the length direction and are riveted with a plurality of bushings, and the axes of the bushings are perpendicular to the end faces of the first extrusion part and the second extrusion part.
6. The integrated water-cooling extruded large-bottom-plate battery box according to claim 1, wherein a large bottom nut with a threaded end extending upwards out of an end face of the large bottom plate welding assembly is mounted at a welding seam of the large bottom plate welding assembly and is in threaded connection with a whole vehicle mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354177.8A CN113972418A (en) | 2021-11-16 | 2021-11-16 | Integrated water-cooling extrusion large-bottom-plate battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111354177.8A CN113972418A (en) | 2021-11-16 | 2021-11-16 | Integrated water-cooling extrusion large-bottom-plate battery box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113972418A true CN113972418A (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111354177.8A Pending CN113972418A (en) | 2021-11-16 | 2021-11-16 | Integrated water-cooling extrusion large-bottom-plate battery box |
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| CN (1) | CN113972418A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115692925A (en) * | 2022-11-04 | 2023-02-03 | 江苏奥特帕斯新能源科技有限公司 | Electric automobile heat dissipation type battery box structure, assembly tool and assembly method thereof |
-
2021
- 2021-11-16 CN CN202111354177.8A patent/CN113972418A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115692925A (en) * | 2022-11-04 | 2023-02-03 | 江苏奥特帕斯新能源科技有限公司 | Electric automobile heat dissipation type battery box structure, assembly tool and assembly method thereof |
| CN115692925B (en) * | 2022-11-04 | 2023-11-03 | 江苏奥特帕斯新能源科技有限公司 | Heat dissipation type battery box structure of electric automobile, assembly tool and assembly method of assembly tool |
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