CN213071280U - Bolt for laminating battery modules and battery module laminating structure thereof - Google Patents
Bolt for laminating battery modules and battery module laminating structure thereof Download PDFInfo
- Publication number
- CN213071280U CN213071280U CN202022026018.2U CN202022026018U CN213071280U CN 213071280 U CN213071280 U CN 213071280U CN 202022026018 U CN202022026018 U CN 202022026018U CN 213071280 U CN213071280 U CN 213071280U
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- battery module
- bolt
- round rod
- upper layer
- supporting 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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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a be used for battery module range upon range of bolt and battery module stacked structure thereof. In the battery module stacking structure, the lower battery module is fixed by the bolt for stacking the battery modules, and the upper battery module is fixed by the bolt on the lower bolt. The lower bolt comprises a round rod part and an upper layer supporting part. The upper supporting part is a cylinder coaxial with the round rod part, and the bottom end of the upper supporting part is connected with the top end of the round rod part. The radial dimension of the upper layer supporting part is larger than that of the round rod part, so that the upper layer supporting part forms a supporting table surface relative to the round rod part at the bottom end. The bottom of the round rod part is provided with an external thread part. The top end of the upper layer supporting part is provided with a threaded hole along the central shaft. The bolt of the battery module of top passes battery module mounting hole back and twists in the threaded hole at the bolt top of below, realizes the fixed of the battery module of top. Compared with the prior art, the utility model discloses reduce extra fixed bolster, simplified the installation of battery module to battery package weight has been alleviateed.
Description
Technical Field
The utility model relates to an installation of battery module in the battery package, in particular to battery package of multilayer battery module.
Background
In an electric automobile, a battery energy storage module provides electric energy, and an electric motor converts the electric energy into kinetic energy of automobile running. Therefore, in the field of electric vehicles, battery energy storage modules are key technologies. In the prior art, a battery energy storage module of an electric vehicle is usually implemented by a battery pack. The battery pack consists of a battery box and a plurality of battery modules arranged in the battery box. The battery module comprises enclosing frame structure and a plurality of batteries arranged in the enclosing frame structure.
In order to maximize the use of space as much as possible, the battery case of the battery pack may not have a normal square structure but may have a stepped structure. For example, a space in a certain part of the battery case is high, and a plurality of battery modules can be stacked. In this case, the fixation of the battery module stacked above the lower battery module becomes a problem. Under prior art, the battery module on the upper layer is mostly fixed on the metal plate support through setting up the metal plate support in the box, then with the battery module on the upper layer. Under this kind of mode, the panel beating support mounting is complicated to panel beating support weight is great, thereby has reduced the holistic energy density of battery package.
Disclosure of Invention
The utility model discloses the problem that will solve: and fixing the multilayer battery modules in the battery box.
In order to solve the above problem, the utility model discloses a scheme as follows:
the bolt for laminating the battery modules comprises a round rod part and an upper supporting part; the upper layer supporting part is a cylinder body coaxial with the round rod part, and the bottom end of the upper layer supporting part is connected with the top end of the round rod part; the radial dimension of the upper layer supporting part is larger than that of the round rod part, so that a supporting table top relative to the round rod part is formed at the bottom end of the upper layer supporting part; the bottom end of the round rod part is provided with an external thread part; the top end of the upper layer supporting part is provided with a threaded hole along the central shaft; the external thread part is provided with external threads; the threaded hole is provided with an internal thread.
Further, according to the utility model discloses a degree of depth phase-match that is used for the bolt that battery module is range upon range of, external screw thread portion's height and screw hole, the external screw thread of external screw thread portion and the internal thread phase-match of screw hole make one the external screw thread portion of bolt can twist into another the screw hole of bolt to realize concatenating of two bolts.
Further, according to the utility model discloses a polygon square column that is regular polygon for the cross section, upper supporting part for the bolt that battery module is range upon range of.
Further, according to the bolt for stacking battery modules of the present invention, the upper support part includes a cylinder and a regular polygonal head; the cylinder is positioned below the head of the regular polygon.
Further, according to the bolt for stacking the battery modules of the present invention, the bolt is arranged on the end plate of the battery module; the top surface of the end plate is lower than the top surface of the battery module; when the bolts are disposed on the end plates, the top surface of the upper support part is higher than the top surface of the battery module.
According to the utility model discloses a battery module stack structure, including battery module and a plurality of first bolts that are used for fixing the battery module; the first bolt is arranged on an end plate of the battery module; the top surface of the end plate is lower than the top surface of the battery module; the first bolt comprises a round rod part and an upper layer supporting part; the upper layer supporting part is a cylinder body coaxial with the round rod part, and the bottom end of the upper layer supporting part is connected with the top end of the round rod part; the radial dimension of the upper layer supporting part is larger than that of the round rod part, so that a supporting table top relative to the round rod part is formed at the bottom end of the upper layer supporting part; the bottom end of the round rod part is provided with an external thread part; the top end of the upper layer supporting part is provided with a threaded hole along the central shaft; the external thread part is provided with external threads; the threaded hole is provided with an internal thread; the top surface of the upper layer supporting part of the first bolt is not lower than the top surface of the battery module.
Further, according to the battery module stacking structure of the present invention, the battery module stacking structure further includes another battery module stacked on the battery module; the first bolts are respectively arranged on two sides of an end plate of the lower battery module; the bottom of the end plate of the upper battery module is supported on the top surface of the upper support part for fixing the first bolt of the lower battery module, and the upper battery module is fixed on the first bolt by screwing the bolt into the threaded hole of the first bolt, so that the upper battery module is stacked on the lower battery module.
Further, according to the utility model discloses a battery module stacked structure, the top surface of the upper supporting part of first bolt is higher than the top surface of below battery module for there is the clearance between the battery module of top and the battery module of below.
Further, according to the battery module stacked structure of the present invention, the height of the external thread portion matches the depth of the screw hole, and the external thread of the external thread portion matches the internal thread of the screw hole, so that the external thread portion of one first bolt can be screwed into the screw hole of another first bolt, thereby realizing the series connection of the two first bolts; the upper battery module is fixed on the lower first bolt through the serial connection of two first bolts; and a battery module is also arranged on the upper first bolt.
Further, according to the bolt for stacking battery modules of the present invention, the upper support part includes a cylinder and a regular polygonal head; the cylinder is positioned below the head of the regular polygon.
The technical effects of the utility model are as follows: the utility model discloses a bolt's design concatenates for the battery module on upper strata directly erects on the bolt of lower floor, thereby has reduced extra fixed bolster, has simplified the installation of battery module in the battery box, and has alleviateed the whole weight of battery package.
Drawings
Fig. 1 is a schematic diagram of a battery module stack structure according to the present invention.
Fig. 2 is a schematic structural view of the battery module of fig. 1 after the upper battery module is unloaded.
Fig. 3 is a schematic structural view of the first bolt.
Fig. 4 is a schematic structural view of another embodiment of the first bolt.
Wherein 1 is a battery module, 11 is an end plate, 12 is a top surface of the battery module, 13 is a top surface of the end plate, and 19 is a gap; 2 is a first bolt, 21 is a round rod part, 22 is an upper support part, 221 is a cylinder, 222 is a regular polygonal head, 229 is a support table, 23 is an external thread part, and 24 is a threaded hole; and 3 is a second bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present embodiment is a battery module stacking structure of a double-layered battery module, and includes a battery module 1 stacked up and down, a first bolt 2 provided on the lower battery module 1, and a second bolt 3 provided on the upper battery module 1. The first bolt 2 and the second bolt 3 are both provided on the end plates 11 at both ends of the battery module 1. The top surface 13 of the end plate 11 of the battery module 1 is lower than the top surface 12 of the battery module 1. The first bolt 2 is a bolt for stacking battery modules referred to in this specification.
The first bolt 2, as shown in fig. 3, includes a round rod portion 21 and an upper support portion 22. The upper support part 22 is a cylinder coaxial with the round bar part 21, and has a bottom end connected to a top end of the round bar part 21. The upper support part 22 includes a cylindrical body 221 and a regular polygonal head 222. The cylindrical body 221 is located below the regular polygonal head 222, and is coaxial with the round bar portion 21 and the regular polygonal head 222. The upper layer support portion 22 has a larger radial dimension than the round bar portion 22 so that the upper layer support portion 22 forms a support land 229 at the bottom end with respect to the round bar portion 21. The bottom end of the round rod part 21 is provided with an external thread part 23. The top end of the upper support part 22 is provided with a screw hole 24 along the central axis. The male screw portion 23 is provided with a male screw and the threaded hole 24 is provided with a female screw.
The lower battery module 1 is fixed in the battery box by a first bolt 2. Specifically, after the round rod portion 21 of the first bolt 2 is inserted into the mounting hole of the end plate 11 of the lower battery module 1, the male screw of the male screw portion 23 is engaged with and fixed to a screw hole in the bottom of the battery case or an insert nut in the mounting hole in the bottom of the battery case, and the upper support portion 22 of the first bolt 2 is engaged with the mounting hole of the end plate 11 and pressed against the top surface 13 of the end plate 11. Thereby fixing the lower battery module 1 in the battery box.
The upper battery module 1 is fixed on the first bolt 2 through the second bolt 3, so that the upper battery module 1 is fixed with the battery box. Specifically, when the support table 229 at the bottom of the upper support 22 is pressed against the top surface 13 of the end plate 11, the top surface of the upper support 22 is higher than the top surface of the lower battery module 1, the bottom of the end plate 11 of the upper battery module 1 is supported on the top surface of the upper support 22, and the second bolt 3 is screwed into the screw hole 24 of the upper support 22 after passing through the mounting hole of the end plate 11 of the upper battery module 1, so that the upper battery module 1 is fixed on the top surface of the upper support 22 of the first bolt 2 in an overhead manner, and the stacked gap 19 is formed between the upper battery module 1 and the lower battery module 1. The gap 19 may be used to provide a liquid cooled plate or a heater or the like.
It is noted that the battery module stacking structure illustrated in fig. 1 is a stacking structure of a double-layered battery module, and those skilled in the art will appreciate that the above-described battery module stacking structure may also be extended to a stacking structure of a multi-layered battery module, such as a stacking structure of a triple-layered battery module. Obviously, in the stacked structure of the tri-layer battery module, the battery modules of the lower bottom layer and the middle layer are fixed by the first bolts 2, and the battery modules of the upper top layer are fixed by the second bolts 3. In this case, the lower bottom and middle battery modules are connected in series between the first bolts 2 for fixing. It is now required that the male thread portion 23 and the threaded hole 24 match. Specifically, that is, the height of the male screw portion 23 matches the depth of the screw hole 24, and the male screw of the male screw portion 23 matches the female screw of the screw hole 24, so that the male screw portion 23 of one first bolt 2 can be screwed into the screw hole 24 of the other first bolt 2, thereby achieving the tandem connection of the two first bolts 2.
In addition, it should be noted that, in the present embodiment, the upper layer support portion 22 of the first bolt 2 is composed of a cylindrical body 221 and a regular polygonal head portion 222. The regular polygon head 222 has a regular hexagon structure, and those skilled in the art will understand that the regular polygon head 222 may also have a regular quadrangle, a regular pentagon, or a regular octagon structure.
It will also be appreciated by those skilled in the art that the regular polygonal head 222 is primarily used to provide grip when screwing the bolt and the cylinder 221 is used to provide support in the height direction. Thus, it is understood by those skilled in the art that the cylinder 221 and the regular polygonal head 222 may also be integrated such that the regular polygonal head simultaneously provides support in the height direction, thereby omitting the cylinder 221. Specifically, referring to fig. 4, the upper support portion 22 is a hexagonal square column having a regular hexagonal cross section. Those skilled in the art will understand that the hexagonal square column of the regular hexagon can also be extended to other polygonal square columns of regular polygons, such as a square column of a regular quadrangle, a square column of a regular pentagon, a square column of a regular octagon, and so on. The polygonal square column now functions as both the cylinder 221 and the regular polygonal head 222.
Claims (9)
1. A bolt for stacking battery modules, characterized by comprising a round rod part (21) and an upper support part (22); the upper layer supporting part (22) is a cylinder coaxial with the round rod part (21), and the bottom end of the upper layer supporting part is connected with the top end of the round rod part (21); the radial dimension of the upper layer supporting part (22) is larger than that of the round rod part (21), so that the upper layer supporting part (22) forms a supporting platform surface (229) relative to the round rod part (21) at the bottom end; the bottom end of the round rod part (21) is provided with an external thread part (23); a threaded hole (24) is formed in the top end of the upper layer supporting part (22) along the central axis; the external thread part (23) is provided with external threads; the threaded hole (24) is provided with internal threads.
2. The bolt for battery module stacking according to claim 1, wherein the height of the male screw portion (23) is matched with the depth of the screw hole (24), and the male screw of the male screw portion (23) is matched with the female screw of the screw hole (24), so that the male screw portion (23) of one bolt can be screwed into the screw hole (24) of the other bolt, thereby achieving the serial connection of the two bolts.
3. The bolt for stacking battery modules according to claim 1 or 2, wherein the upper support part (22) is a polygonal square column having a cross-section of a regular polygon.
4. The bolt for battery module stacking according to claim 1 or 2, wherein the upper support part (22) comprises a cylindrical body (221) and a regular polygonal head (222); the cylinder (221) is located below the regular polygonal head (222).
5. The battery module stacking structure is characterized by comprising a battery module and a plurality of first bolts (2) for fixing the battery module; the battery module comprises an end plate; the first bolt (2) is arranged on an end plate of the battery module; the top surface of the end plate is lower than the top surface of the battery module; the first bolt (2) comprises a round rod part (21) and an upper layer supporting part (22); the upper layer supporting part (22) is a cylinder coaxial with the round rod part (21), and the bottom end of the upper layer supporting part is connected with the top end of the round rod part (21); the radial dimension of the upper layer supporting part (22) is larger than that of the round rod part (21), so that the upper layer supporting part (22) forms a supporting platform surface (229) relative to the round rod part (21) at the bottom end; the bottom end of the round rod part (21) is provided with an external thread part (23); a threaded hole (24) is formed in the top end of the upper layer supporting part (22) along the central axis; the external thread part (23) is provided with external threads; the threaded hole (24) is provided with internal threads; the top surface of the upper layer support part (22) of the first bolt (2) is not lower than the top surface of the battery module.
6. The battery module stacking structure of claim 5, further comprising another battery module stacked on the battery module; the first bolt (2) is arranged on an end plate of the lower battery module; the bottom of the end plate of the upper battery module is supported on the top surface of an upper support part (22) for fixing a first bolt (2) of the lower battery module, and the upper battery module is fixed on the first bolt (2) by screwing the bolt into a threaded hole (24) of the first bolt (2), so that the upper battery module is stacked on the lower battery module.
7. The battery module stacking structure according to claim 6, wherein the top surface of the upper layer supporting part (22) of the first bolt (2) is higher than the top surface of the lower battery module such that a gap (19) exists between the upper and lower battery modules.
8. The battery module stacking structure according to claim 6, wherein the height of the male screw portion (23) is matched with the depth of the screw hole (24), and the male screw of the male screw portion (23) is matched with the female screw of the screw hole (24) so that the male screw portion (23) of one first bolt (2) can be screwed into the screw hole (24) of the other first bolt (2), thereby enabling the concatenation of the two first bolts (2); the upper battery module is fixed on the lower first bolt (2) through the serial connection of two first bolts (2); and a battery module is also arranged on the upper first bolt (2).
9. The battery module stacking structure according to claim 6, 7 or 8, wherein the upper layer support (22) comprises a cylindrical body (221) and a regular polygonal head (222); the cylinder (221) is located below the regular polygonal head (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026018.2U CN213071280U (en) | 2020-09-16 | 2020-09-16 | Bolt for laminating battery modules and battery module laminating structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022026018.2U CN213071280U (en) | 2020-09-16 | 2020-09-16 | Bolt for laminating battery modules and battery module laminating structure thereof |
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| Publication Number | Publication Date |
|---|---|
| CN213071280U true CN213071280U (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022026018.2U Active CN213071280U (en) | 2020-09-16 | 2020-09-16 | Bolt for laminating battery modules and battery module laminating structure thereof |
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| CN (1) | CN213071280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2955371A1 (en) * | 2022-04-25 | 2023-11-30 | Defta | BATTERY CASE SCREW FOR A VEHICLE AND BATTERY CASE ASSEMBLY FOR A VEHICLE PLUS ONE OR MORE SCREWS (Machine-translation by Google Translate, not legally binding) |
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2020
- 2020-09-16 CN CN202022026018.2U patent/CN213071280U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2955371A1 (en) * | 2022-04-25 | 2023-11-30 | Defta | BATTERY CASE SCREW FOR A VEHICLE AND BATTERY CASE ASSEMBLY FOR A VEHICLE PLUS ONE OR MORE SCREWS (Machine-translation by Google Translate, not legally binding) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220120 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli new energy battery technology Co.,Ltd. Address before: No.15, Huashang Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Jiangsu Tafel Power System Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |