CN212542595U - Electric automobile Pack box and battery module location fastening nut - Google Patents
Electric automobile Pack box and battery module location fastening nut Download PDFInfo
- Publication number
- CN212542595U CN212542595U CN202020846256.5U CN202020846256U CN212542595U CN 212542595 U CN212542595 U CN 212542595U CN 202020846256 U CN202020846256 U CN 202020846256U CN 212542595 U CN212542595 U CN 212542595U
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- positioning
- fastening nut
- battery module
- box body
- positioning part
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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 Pack box body of an electric automobile comprises a long bolt, a battery module, a pair of supporting beams, a positioning and fastening nut and a box body bottom plate; the positioning and fastening nut is welded on the lower surface of the supporting beam, and the supporting beam is welded on the bottom plate of the box body; the positioning fastening nut is provided with a positioning part and a limiting part, and the inner diameter of the lower end of the bolt mounting hole on the four corners of the battery module is matched with the outer diameter of the positioning part; the positioning fastening nut replaces a common projection welding nut and is welded on a support beam of the box body, and the positioning part penetrates through the support beam and protrudes out of the upper surface of the support beam; the long bolt penetrates through the battery module mounting hole to be in threaded connection with the positioning and fastening nut, so that the positioning and fastening functions with the box body in the module mounting process are achieved.
Description
Technical Field
The utility model relates to an electric automobile Pack box and battery module location fastening nut belongs to electric automobile battery module technical field.
Background
With the increasing severity of energy and environmental problems, new energy vehicles become an important part of national strategic planning, and battery systems are confronted with new development opportunities. The simpler the technology after the technology commercialization, the lower the cost, the higher the unitization degree and the higher the production efficiency. At present, the battery Pack production line of part electric automobile still adopts semi-automatic or manual mode to carry out the installation of module, for improving production efficiency, has location structure on Pack box and the module best. With the higher integration of module structures, some modules have no space for designing positioning structures, especially for standard modules of VDA size. If there is not location structure, location between module and the box can be accomplished through setting for the machinist orbit to full-automatic production line, and the production line of artifical installation module needs the workman to adjust the module position many times just can guarantee fixing bolt's installation, influences assembly efficiency.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides an electric automobile Pack box, it includes the location fastening nut of a no location structure module, the module and the integrated locate function of fastening structure of box.
In order to achieve the above purpose, the utility model comprises the following technical scheme:
a Pack box body of an electric automobile comprises a long bolt 1, a battery module 2, a pair of supporting beams 3, a positioning fastening nut 4 and a box body bottom plate 5;
the four corners of the battery module 2 are provided with mounting holes 22; the pair of support beams 3 are positioned below the battery module 2, each support beam 3 is provided with two fixing holes 31, and the distance between the two fixing holes 31 is the same as the distance between the two mounting holes 22 on one edge of the battery module 2;
the positioning fastening nut comprises a positioning part 7 and a limiting part 8, the positioning part 7 is positioned at the upper part of the positioning fastening nut, the limiting part 8 is positioned below the positioning part 7, and the outer diameter of the limiting part 8 is larger than that of the positioning part 7; the inner surface 6 of the positioning part 7 is provided with internal threads matched with the external threads of the long bolt 1;
the inner diameter of the lower end of the mounting hole 22 is matched with the outer diameter of the positioning part 7 at the upper part of the positioning fastening nut 4; the positioning fastening nut 4 is arranged below the support beam 3, the positioning part 7 of the positioning fastening nut passes through the fixing hole 31 and is embedded into the mounting hole 22, and the upper surface of the limiting part 8 at the lower part of the positioning fastening nut 4 is welded with the lower surface of the support beam 3; the pair of support beams 3 are welded on the box body bottom plate 5 in parallel, and the distance between the outer edges of the support beams and the outer edges of the box body bottom plate is the same as the length of the battery module 2;
the long bolt 1 penetrates through the mounting hole 22 to be in threaded connection with the positioning and fastening nut 4, so that the battery module and the box body are fixedly mounted.
On the other hand, the utility model provides a battery module positioning fastening nut, including location portion 7 and spacing portion 8, location portion 7 is located the upper portion of positioning fastening nut, and spacing portion 8 is located the below of location portion 7, and its external diameter is greater than the external diameter of location portion 7; the inner surface 6 of the positioning portion 7 is internally threaded.
As described above, the battery module positioning fastening nut preferably has a pre-formed chamfer 9 at the top end of the positioning part 7 to facilitate the installation and positioning of the module.
In the above-described battery module positioning and fastening nut, the outer circumference of the stopper portion 8 is preferably quadrangular.
In the above positioning and fastening nut for a battery module, preferably, the upper surface of the position-limiting part 8 has an annular groove 10 along the periphery of the positioning part 7, the annular groove forms a convex point 11 at the corner of the nut, and the convex point 11 is in contact with the lower surface of the support beam 3 during welding, so that the pressure and current density per unit area are improved.
The beneficial effects of the utility model reside in that: the utility model provides a no location fastening nut of location structure module and supporting electric automobile Pack box with it, this location fastening nut replace commonly-used projection welding nut, and the welding is on a box supporting beam, and a supporting beam, the upper surface of outstanding roof beam are passed on the top. The chamfer is prefabricated on the top, and the module is convenient to mount and position. The structure integrates the positioning function in the installation process of the module and the fastening function of the box body.
Drawings
Fig. 1 is an exploded schematic view of a Pack box of an electric vehicle in embodiment 1.
Fig. 2 is a schematic structural view of a positioning and fastening nut in embodiment 1.
FIG. 3 is a schematic view showing the positional relationship between the positioning and fastening nut and the support beam.
FIG. 4 is a schematic diagram illustrating the positioning and fastening relationship of the module.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Battery module positioning and fastening nut
As shown in fig. 2, the positioning fastening nut includes a positioning portion 7 and a limiting portion 8, the positioning portion 7 is located at the upper portion of the positioning fastening nut, the limiting portion 8 is located below the positioning portion 7, and the outer diameter of the limiting portion is larger than that of the positioning portion 7; the inner surface 6 of the positioning portion 7 has an internal thread matching the external thread of the long bolt 1. The chamfer 9 is prefabricated at the top end of the positioning part 7, so that the module is convenient to mount and position. The periphery of the limiting part 8 is in a quadrangle shape, an annular groove 10 is formed in the upper surface of the limiting part 8 along the periphery of the positioning part 7, a convex point 11 is formed at the corner of the nut by the annular groove, and the convex point 11 is in contact with the lower surface of the supporting beam 3 during welding, so that the pressure and the current density in unit area are improved.
Second, electric automobile Pack box
As shown in fig. 1, 3 and 4, the Pack box of the electric vehicle includes a long bolt 1, a battery module 2, a pair of support beams 3, a positioning fastening nut 4 and a box bottom plate 5. The battery module 2 has mounting holes 22 at four corners. Each support beam 3 has two fixing holes 31, and the distance between the two fixing holes 31 is the same as the distance between the two mounting holes 22 on one side of the battery module 2. The inner diameter of the lower end of the mounting hole 22 is matched with the outer diameter of the positioning part 7 for positioning the upper part of the fastening nut 4. The positioning fastening nut 4 is arranged below the support beam 3, the positioning part 7 of the positioning fastening nut passes through the fixing hole 31 and is embedded into the mounting hole 22, and the upper surface of the limiting part 8 at the lower part of the fastening nut 4 is welded with the lower surface of the support beam 3; the pair of support beams 3 are welded to the case bottom plate 5 in parallel, and the distance between the outer edges of the support beams is the same as the length of the battery module 2. The long bolt 1 passes through the mounting hole 22 and is in threaded connection with the positioning and fastening nut 4.
The manufacturing process is that the positioning fastening nut 4 is arranged below the support beam 3, and the positioning part 7 at the upper part passes through the fixing hole 31 and protrudes out of the upper surface of the support beam 3. The upper surface of the lower limit portion 8 is welded to the lower surface of the support beam 3. Then a pair of support beams 3 are welded to the box bottom plate 5. Then lay battery module 2 on a supporting beam, the mounting hole 22 of battery module 2 and the location portion 7 gomphosis of location fastening nut 4, then pass mounting hole 22 and location fastening nut 4 spiro union with long bolt 1, realize the fixed mounting of battery module and box.
Claims (5)
1. The electric automobile Pack box is characterized by comprising a long bolt (1), a battery module (2), a pair of supporting beams (3), a positioning fastening nut (4) and a box bottom plate (5);
four corners of the battery module (2) are provided with mounting holes (22); the pair of supporting beams (3) are positioned below the battery module (2), each supporting beam (3) is provided with two fixing holes (31), and the distance between the two fixing holes (31) is the same as the distance between the two mounting holes (22) on one edge of the battery module (2);
the positioning fastening nut comprises a positioning part (7) and a limiting part (8), the positioning part (7) is positioned at the upper part of the positioning fastening nut, the limiting part (8) is positioned below the positioning part (7), and the outer diameter of the limiting part is larger than that of the positioning part (7); the inner surface (6) of the positioning part (7) is provided with internal threads which are matched with the external threads of the long bolt (1);
the inner diameter of the lower end of the mounting hole (22) is matched with the outer diameter of a positioning part (7) at the upper part of the positioning fastening nut (4); the positioning and fastening nut (4) is arranged below the supporting beam (3), the positioning part (7) of the positioning and fastening nut penetrates through the fixing hole (31) and is embedded into the mounting hole (22), and the upper surface of the limiting part (8) at the lower part of the positioning and fastening nut (4) is welded with the lower surface of the supporting beam (3); the pair of supporting beams (3) are mutually welded on the box body bottom plate (5) in parallel, and the distance between the outer edges of the supporting beams and the outer edges of the box body bottom plate is the same as the length of the battery module (2);
the long bolt (1) penetrates through the mounting hole (22) to be in threaded connection with the positioning fastening nut (4), so that the battery module and the box body are fixedly mounted.
2. The positioning and fastening nut for the battery module is characterized by comprising a positioning part (7) and a limiting part (8), wherein the positioning part (7) is positioned at the upper part of the positioning and fastening nut, the limiting part (8) is positioned below the positioning part (7), and the outer diameter of the limiting part is larger than that of the positioning part (7); the inner surface (6) of the positioning part (7) is provided with internal threads.
3. The battery module positioning fastening nut as set forth in claim 2, wherein the top end of the positioning portion (7) is pre-chamfered (9).
4. The battery module positioning and fastening nut as set forth in claim 2, wherein the outer circumference of the stopper portion (8) is quadrangular.
5. The positioning and fastening nut for battery modules according to any one of claims 2-4, wherein the upper surface of the position-limiting portion (8) has an annular groove (10) along the outer periphery of the positioning portion (7), the annular groove forms a convex point (11) at the corner of the nut, and the convex point (11) is in contact with the lower surface of the support beam (3) during welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846256.5U CN212542595U (en) | 2020-05-19 | 2020-05-19 | Electric automobile Pack box and battery module location fastening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020846256.5U CN212542595U (en) | 2020-05-19 | 2020-05-19 | Electric automobile Pack box and battery module location fastening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212542595U true CN212542595U (en) | 2021-02-12 |
Family
ID=74542607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020846256.5U Active CN212542595U (en) | 2020-05-19 | 2020-05-19 | Electric automobile Pack box and battery module location fastening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212542595U (en) |
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2020
- 2020-05-19 CN CN202020846256.5U patent/CN212542595U/en active Active
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