CN218414850U - Reduce car battery case crossbeam connection structure of battery thermal expansion influence - Google Patents
Reduce car battery case crossbeam connection structure of battery thermal expansion influence Download PDFInfo
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- CN218414850U CN218414850U CN202221680854.5U CN202221680854U CN218414850U CN 218414850 U CN218414850 U CN 218414850U CN 202221680854 U CN202221680854 U CN 202221680854U CN 218414850 U CN218414850 U CN 218414850U
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- side frame
- battery
- projection welding
- thermal expansion
- battery case
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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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Abstract
A car battery case crossbeam connecting structure for reducing the influence of battery thermal expansion is assembled with a car body framework of a car through a side frame crossbeam and a mounting sleeve arranged on the side frame crossbeam; the side frame cross beam is made of a section formed by adopting an aluminum alloy extrusion process, a metal plate mounting plate is assembled at the top of an inner cavity of the side frame cross beam, projection welding nuts are welded on the bottom surface of the metal plate mounting plate in advance, a plurality of groups of the projection welding nuts are uniformly arranged along the axial direction of the side frame cross beam, the fixed assembly of an automobile battery module or a battery shell upper cover is realized through the cooperation of the projection welding nuts and bolts, and long holes corresponding to the projection welding nuts or large round holes with the diameter size larger than the inner aperture of the projection welding nuts are also arranged on the top surface of the side frame cross beam. The utility model provides a module and battery case frame junction take place fatigue fracture's problem, reached the purpose that improves new energy automobile power battery system security.
Description
Technical Field
The utility model relates to a car battery case crossbeam connection structure, especially a be favorable to reducing new forms of energy car battery case crossbeam connection structure of battery thermal energy influence.
Background
With the enhancement of the environmental protection consciousness and the proposal of the carbon neutralization concept of people, new energy automobiles are widely accepted in China, more and more consumers select new energy automobiles as travel tools, and therefore the safety performance of the new energy automobiles is increasingly concerned by the people in the industry and the consumers.
At present, automobile manufacturers fully consider the safety protection problem in the research and development process of new energy vehicles, including the contents of safe use of functions, passive safety and the like, but the safety problem of a power battery system of a new energy vehicle is not solved well all the time, because of the influence of the self structure of a power battery of the new energy vehicle, under the condition of repeated charging or high-power discharging, a battery module expands due to heating and extrudes a battery shell outwards, and therefore a great acting force is generated at the joint of the module and the battery shell; when the temperature of the battery returns to normal, the acting force of the module on the joint of the battery shell caused by thermal deformation disappears, so that the fatigue fracture problem is easily caused at the joint of the module and the frame of the battery shell under the influence of the thermal expansion force of the battery which changes repeatedly.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reduce car battery case crossbeam connection structure of battery thermal energy influence aims at the extrusion force that produces connection structure through reducing the battery module thermal expansion to solve module and battery case frame junction and take place fatigue fracture's problem, reach the purpose that improves new energy automobile power battery system security.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a car battery case crossbeam connecting structure for reducing the influence of battery thermal expansion is assembled with a car body framework of a car through a side frame crossbeam and a mounting sleeve arranged on the side frame crossbeam; the side frame cross beam is made of a section formed by an aluminum alloy extrusion process, a metal plate mounting plate is assembled at the top of an inner cavity of the side frame cross beam, projection welding nuts are welded on the bottom surface of the metal plate mounting plate in advance, a plurality of groups of the projection welding nuts are evenly distributed along the axial direction of the side frame cross beam, the fixing assembly of an automobile battery module or a battery shell upper cover is realized through the cooperation of the projection welding nuts and bolts, and long holes corresponding to the positions of the projection welding nuts or large round holes with the diameter size larger than the inner aperture of the projection welding nuts are further arranged on the top surface of the side frame cross beam.
According to the automobile battery case crossbeam connecting structure for reducing the influence of thermal expansion of the battery, a metal plate mounting plate boss blocking structure is arranged in the inner cavity of the side frame crossbeam; the metal plate mounting plate boss blocking structure is located on two side walls of an inner cavity of the side frame cross beam and is parallel to the axis of the side frame cross beam.
The automobile battery case crossbeam connecting structure capable of reducing battery thermal expansion influence is characterized in that a abdicating fillet is arranged at the top of the inner cavity of the side frame crossbeam and at the matching position of the two ends of the metal plate mounting plate.
According to the automobile battery shell cross beam connecting structure capable of reducing the influence of thermal expansion of the battery, the projection welding nuts are steel standard parts.
According to the automobile battery case crossbeam connecting structure capable of reducing the thermal expansion influence of the battery, the mounting sleeve and the side frame crossbeam are assembled in an interference fit mode or a welding process.
The utility model provides an automobile battery case crossbeam connecting structure for reducing influence of battery thermal expansion, which is characterized in that a long hole corresponding to a projection welding nut position or a big round hole with a diameter size larger than the inner aperture of the projection welding nut is arranged on the top surface of a side frame crossbeam, therefore, when a battery module expands due to heating and extrudes a battery shell outwards, a metal plate mounting plate can realize position adjustment along the long hole or big round hole structure, and an avoiding space is provided for the thermal expansion of the battery module, thereby reducing the extrusion acting force of the thermal expansion of the battery module on the side frame crossbeam, and solving the problem of fatigue fracture at the joint of the battery module and the battery case frame; the utility model also has a metal plate mounting plate boss blocking structure in the inner cavity of the side frame beam, and a abdicating fillet is arranged at the top of the inner cavity of the side frame beam and the matching part at the two ends of the metal plate mounting plate, thereby being more convenient for assembling the metal plate mounting plate and the side frame beam; the utility model discloses at the bottom surface projection nut of prewelding of panel beating mounting panel, not only improved the reliability of battery case assembly, reduced the assembly process degree of difficulty moreover, reduced manufacturing cost.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view of item K of FIG. 1;
FIG. 3 is an enlarged view of the structure I in FIG. 1;
fig. 4 is an enlarged view of the structure ii in fig. 2.
The figures are numbered as follows:
1 is a side frame beam, 1-1 is a long hole, 1-2 is a metal plate mounting plate boss blocking structure, and 1-3 is a abdication round angle;
2 is a metal plate mounting plate;
3 is projection welding nut;
and 4, a mounting sleeve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the present invention relates to a cross beam connection structure of a car battery case for reducing the influence of thermal expansion of a battery, which can be assembled with a car body frame by a side frame cross beam 1 and a mounting sleeve 4 arranged on the side frame cross beam 1. The utility model discloses well side frame crossbeam 1 adopts the fashioned section bar of aluminum alloy extrusion process, and its inside die cavity is the rectangle cavity, joins in marriage dress panel beating mounting panel 2 at the top of its inner chamber, the bottom surface pre-welding of panel beating mounting panel 2 has projection nut 3, projection nut 3 is the steel standard component, evenly arranges a plurality of groups along 1 axial of side frame crossbeam, and accessible projection nut 3 realizes the fixed Assembly of car battery module or battery case upper cover with the bolt cooperation.
Referring to fig. 3, the utility model discloses set up slot hole 1-1 corresponding with projection nut position on the top surface of side frame crossbeam 1, when the battery module can be heated the thermal expansion and outwards extrude battery case, panel beating mounting panel 2 can follow slot hole 1-1 axial displacement, for the battery module is heated the thermal expansion and provides and dodges the space, thereby has alleviateed the battery module and has heated the extrusion effort of inflation to side frame crossbeam 1, has solved the problem that battery module and battery case frame 1 junction take place fatigue fracture
Another preferred embodiment of the present invention: and a large round hole with the diameter size larger than the inner aperture of the projection welding nut and corresponding to the projection welding nut is arranged on the top surface of the side frame beam 1, and the large round hole has the same action with the long hole 1-1.
Referring to fig. 2 and 4, the automobile battery case beam connecting structure for reducing the influence of thermal expansion of the battery is characterized in that a metal plate mounting plate boss blocking structure 1-2 is arranged on two side walls of an inner cavity of the side frame beam 1, the metal plate mounting plate boss blocking structure 1-2 is parallel to the axis of the side frame beam 1, and the metal plate mounting plate 2 can be positioned and supported before being fixedly assembled with a battery shell or a battery module through the metal plate mounting plate boss blocking structure 1-2; the utility model discloses still be in the cooperation department at 1 inner chamber top of side frame crossbeam and 2 both ends of panel beating mounting panel sets up the fillet of stepping down 1-3, the assembly of the panel beating mounting panel of being more convenient for and side frame crossbeam.
Claims (5)
1. The utility model provides a reduce car battery case crossbeam connection structure of battery thermal expansion influence which characterized in that: the automobile body frame is assembled with an automobile body frame through a side frame beam (1) and an installation sleeve (4) arranged on the side frame beam (1); the side frame beam (1) is made of a section formed by an aluminum alloy extrusion process, a metal plate mounting plate (2) is assembled at the top of an inner cavity of the side frame beam, projection welding nuts (3) are welded on the bottom surface of the metal plate mounting plate (2) in advance, a plurality of groups of the projection welding nuts (3) are evenly distributed along the axial direction of the side frame beam (1), the fixed assembly of an automobile battery module or an upper cover of a battery shell is realized through the cooperation of the projection welding nuts (3) and bolts, and long holes (1-1) corresponding to the projection welding nuts or large round holes with the diameter size larger than the inner aperture of the projection welding nuts are further arranged on the top surface of the side frame beam (1).
2. The cross beam connecting structure of the battery case for the automobile for reducing the influence of thermal expansion of the battery according to claim 1, wherein: a metal plate mounting plate boss blocking structure (1-2) is arranged in the inner cavity of the side frame beam (1); the metal plate mounting plate boss blocking structure (1-2) is located on two side walls of an inner cavity of the side frame cross beam and is parallel to an axis of the side frame cross beam (1).
3. The cross member connecting structure of the battery case for the automobile that reduces the influence of thermal expansion of the battery according to claim 1 or 2, wherein: and a receding fillet (1-3) is arranged at the matching part of the top of the inner cavity of the side frame cross beam (1) and the two ends of the sheet metal mounting plate (2).
4. The cross-member connecting structure of battery case for vehicle for reducing influence of thermal expansion of battery according to claim 3, wherein: the projection welding nut (3) is a steel standard component.
5. The cross-member connecting structure of battery case for vehicle for reducing influence of thermal expansion of battery according to claim 4, wherein: the mounting sleeve (4) and the side frame cross beam (1) are assembled in an interference fit mode or a welding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221680854.5U CN218414850U (en) | 2022-06-30 | 2022-06-30 | Reduce car battery case crossbeam connection structure of battery thermal expansion influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221680854.5U CN218414850U (en) | 2022-06-30 | 2022-06-30 | Reduce car battery case crossbeam connection structure of battery thermal expansion influence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218414850U true CN218414850U (en) | 2023-01-31 |
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ID=85012855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221680854.5U Active CN218414850U (en) | 2022-06-30 | 2022-06-30 | Reduce car battery case crossbeam connection structure of battery thermal expansion influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218414850U (en) |
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2022
- 2022-06-30 CN CN202221680854.5U patent/CN218414850U/en active Active
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