CN213905536U - Anti-loosening device for end plate of power battery module - Google Patents
Anti-loosening device for end plate of power battery module Download PDFInfo
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- CN213905536U CN213905536U CN202022414045.7U CN202022414045U CN213905536U CN 213905536 U CN213905536 U CN 213905536U CN 202022414045 U CN202022414045 U CN 202022414045U CN 213905536 U CN213905536 U CN 213905536U
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- end plate
- module
- loosening
- battery module
- screw
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- 238000009434 installation Methods 0.000 claims abstract description 19
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000002040 relaxant effect Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
The utility model discloses a locking device of a power battery module end plate, which relates to the technical field of battery module preparation and is used for fixing the module end plate for fixing a battery module on a module mounting beam, comprising a tightening bolt and a locking screw, wherein the extension end of the tightening bolt passes through the module end plate to be fixedly connected with the module mounting beam, the top end of the tightening bolt extends into the module end plate, the lower end head of the locking screw is abutted against the top end of the tightening bolt, the upper end head of the locking screw extends to the outer side of the module end plate, and the locking screw is fixedly connected with the module end plate; through the adoption of the method and the device, the threaded connection of the screwed bolt is loosened and controlled twice, and the installation stability and the reliability of the battery module are guaranteed.
Description
Technical Field
The utility model relates to a battery module preparation technical field especially relates to a locking device of power battery module end plate.
Background
Along with the wide application and large-scale production requirements of the power battery, the installation, fixation and maintenance modes of the power battery module are diversified, and higher requirements are provided for the design of the structure and the process. In the process of improving and guaranteeing the high safety, stability and reliability of the installation of the power battery module, the design of the anti-loosening structure is particularly important for the threaded connection mode of the module.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a locking device of power battery module end plate realizes the not hard up twice not hard up control of threaded connection to the tightening bolt, has ensured the installation stability and the reliability of battery module.
The utility model provides a locking device of power battery module end plate for on being fixed in module installation roof beam with the module end plate of fixed battery module, including screwing up bolt and check screw, the extension end of screwing up the bolt passes module end plate and module installation roof beam fixed connection, the top stretches into the module end plate, and check screw's lower extreme head and the top butt of screwing up the bolt, upper end head extend to the outside of module end plate, check screw and module end plate fixed connection.
Furthermore, first screw hole and unthreaded hole have been seted up on the module end plate, have seted up the second screw hole on the module installation roof beam, and the extension end of screwing up the bolt inserts unthreaded hole and second screw hole threaded connection, and the external diameter surface of check screw is provided with the external screw thread, external screw thread and first screw hole threaded connection.
Further, the diameter of the first threaded hole is larger than that of the unthreaded hole, a boss is formed between the first threaded hole and the unthreaded hole, and the lower end face of the top end of the tightening bolt is abutted to the boss.
Furthermore, the head of the lower end of the anti-loosening screw is a conical part, the head of the upper end of the anti-loosening screw is provided with an inner hexagonal groove, and the anti-loosening screw and the tightening bolt form an opposite-ejecting structure.
Furthermore, the side edge of the anti-loosening screw close to the upper end is provided with a through hole, an iron wire is arranged between two adjacent anti-loosening screws, and two ends of the iron wire respectively penetrate through the through holes on the two adjacent anti-loosening screws for fixation.
Furthermore, the iron wire penetrating through the through hole of the check screw is tightened and knotted along the screwing direction of the check screw.
The utility model provides a pair of locking device of power battery module end plate's advantage lies in: the utility model provides a locking device of power battery module end plate in the structure, through installing the check screw and exerting the pretightning force to the tightening bolt, can improve the threaded connection anti-loosening structure to the tightening bolt, form the one-time anti-loosening structure of tightening bolt; two adjacent anti-loosening screws are drawn by iron wires which cross through holes of the anti-loosening screws, and threaded connection of the tightening bolts is loosened to form a secondary anti-loosening structure; set up through once relaxing with the secondary, have simple structure, the cost is lower, be convenient for characteristics such as installation and use, guaranteed battery module's installation stability and reliability among the practical application process, have good practical application and worth.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a fixing structure of the battery module;
FIG. 3 is an enlarged view of a portion of area A of FIG. 2;
FIG. 4 is a schematic structural view of a locking screw;
the battery module comprises a battery module 1, a module end plate 2, a module mounting beam 3, a tightening bolt 4, a locking screw 5, a boss 6, an iron wire 7, an external thread 51, a conical part 52, an inner hexagonal groove 53 and a through hole 54.
Detailed Description
The technical solutions of the present invention are explained in detail below with reference to specific embodiments, and many specific details are set forth in the following description to provide a thorough understanding of the present invention. The present invention can be embodied in many other forms than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention.
As shown in fig. 1 to 4, the utility model provides a locking device of power battery module end plate for on being fixed in module installation roof beam 3 with module end plate 2 of fixed battery module 1, including tightening bolt 4 and check screw 5, tightening bolt 4's extension end passes module end plate 2 and module installation roof beam 3 fixed connection, the top stretches into in the module end plate 2, check screw 5's lower extreme head and tightening bolt 4's top butt, the upper end head extends to the outside of module end plate 2, check screw 5 and module end plate 2 fixed connection.
The tightening bolt 4 can be an existing common inner hexagonal cylindrical bolt, and the lower end head of the installed anti-loosening screw 5 is in contact with the top end (upper end head) of the tightening bolt 4 to form an opposite-top structure. Because of the existence of the loosening screw, when the tightening bolt 4 is loosened, the loosening-preventing screw 5 can be pushed to rotate reversely only by generating larger axial force, so that the tightening bolt 4 is applied with pretightening force by installing the loosening-preventing screw 5, the threaded connection loosening-preventing structure of the tightening bolt 4 can be improved, and a primary loosening-preventing structure is formed.
Meanwhile, the side edge of the anti-loosening screw 5 close to the upper end is provided with a through hole 54, an iron wire 7 is arranged between two adjacent anti-loosening screws 5, and two ends of the iron wire 7 respectively penetrate through the through holes 54 on the two adjacent anti-loosening screws 5 for fixation. Therefore, two adjacent anti-loosening screws 5 are restrained by the iron wires 7 which transversely penetrate through holes of the anti-loosening screws 5, and the anti-loosening screws 5 can be prevented from reversely rotating when being stressed to be loosened, so that threaded connection of the tightening bolts 4 is loosened to form a secondary anti-loosening structure. The through hole 54 is preferably a small-diameter hole, and the position of the wire 7 can be prevented from moving to some extent.
Consequently this application is through above once relaxing the setting with the secondary, has characteristics such as simple structure, cost are lower, be convenient for installation and use, has ensured battery module's installation stability and reliability among the actual application process, has good practical application and worth.
It should be noted that the iron wire 7 penetrating through the through hole 54 formed in the check screw 5 is fastened and knotted along the screwing direction of the check screw 5; when the locking screws 5 are loosened and reversely rotated, the iron wire 7 is tensioned, so that mutual restraint is formed by utilizing the screwing directions of the two locking screws 5.
Specifically, first screw hole and unthreaded hole have been seted up on the module end plate, have seted up the second screw hole on the module installation roof beam 3, and the extension end of screwing up bolt 4 inserts unthreaded hole and second screw hole threaded connection, and the external diameter surface of check screw 5 is provided with external screw thread 51, external screw thread 51 and first screw hole threaded connection. The diameter of the first threaded hole is larger than that of the unthreaded hole, so that the tightening bolt 4 can pass through the first threaded hole completely without interference, the tightening bolt 4 is convenient to insert into the module end plate 2 and fixedly connected with the module mounting beam 3, but the diameter of the first threaded hole is smaller than that of the top end of the tightening bolt 4, a boss 6 is formed between the first threaded hole and the unthreaded hole, the lower end face of the top end of the tightening bolt 4 is abutted against the boss 6, and the anti-loose screw 5 and the tightening bolt 4 are convenient to form an abutting structure.
Therefore, through increasing the anti-loosening screws 5, the module end plate 2 is arranged on the module mounting beam 3 through threaded connection, so that the module end plate and the tightening bolts 4 form an opposite-top structure, and the threaded pre-tightening force applied by the anti-loosening screws 5 can loosen the threaded connection of the module mounting bolts to form an anti-loosening structure once.
During installation, the screwing bolt 4 penetrates through the installation hole of the module end plate 2 through the inner hexagonal wrench and is installed on the module installation beam 3. And installing the locking screw 5, and forming an abutting structure after the head of the locking screw 5 is contacted with the top end of the tightening bolt 4 until the pretightening force cannot be continuously applied. When the tightening bolt 4 is not flexible, the locking screw 5 can be pushed to rotate reversely by generating a large axial force, so that the locking screw 5 is installed to apply a thread pretightening force to the top, the threaded connection of the tightening bolt 4 can be flexible, and a one-time locking structure is formed. As shown in fig. 2 and 3, the anti-loosening screws 5 of two adjacent modules can respectively traverse through-holes 54 formed in the anti-loosening screws 5 through iron wires 7, and the penetrated parts are fastened and knotted in the screwing direction of the screws as shown in fig. 3; locking screw 5 must produce great soon to power and just can shake off iron wire 7, so, through the containment of iron wire 7, reverse rotation when preventing locking screw 5 atress lax forms secondary anti loosening structure to the threaded connection of screwing up bolt 4 is not hard up.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a locking device of power battery module end plate for on module end plate (2) with fixed battery module (1) are fixed in module installation roof beam (3), a serial communication port, including tightening bolt (4) and check screw (5), the extension end of tightening bolt (4) passes module end plate (2) and module installation roof beam (3) fixed connection, the top stretches into in module end plate (2), the lower extreme head of check screw (5) and the top butt of tightening bolt (4), the upper end head extends to the outside of module end plate (2), check screw (5) and module end plate (2) fixed connection.
2. The anti-loosening device for the power battery module end plate as claimed in claim 1, wherein a first threaded hole and a smooth hole are formed in the module end plate (2), a second threaded hole is formed in the module mounting beam (3), the extending end of the tightening bolt (4) is inserted into the smooth hole and is in threaded connection with the second threaded hole, an external thread (51) is arranged on the outer diameter surface of the anti-loosening screw (5), and the external thread (51) is in threaded connection with the first threaded hole.
3. The anti-loosening device for the end plate of the power battery module as claimed in claim 2, wherein the diameter of the first threaded hole is larger than that of the unthreaded hole, a boss (6) is formed between the first threaded hole and the unthreaded hole, and the lower end face of the top end of the tightening bolt (4) abuts against the boss (6).
4. The anti-loosening device for the end plate of the power battery module as claimed in claim 1, wherein the head of the lower end of the anti-loosening screw (5) is a tapered part (52), the head of the upper end is provided with an inner hexagonal groove (53), and the anti-loosening screw (5) and the tightening bolt (4) form an opposite-top structure.
5. The anti-loosening device for the end plate of the power battery module as claimed in any one of claims 1 to 4, wherein the anti-loosening screws (5) are provided with through holes (54) at the side edges near the upper ends, an iron wire (7) is arranged between two adjacent anti-loosening screws (5), and two ends of the iron wire (7) are respectively fixed through the through holes (54) on the two adjacent anti-loosening screws (5).
6. The anti-loosening device for the end plate of the power battery module as claimed in claim 5, wherein the iron wire (7) penetrating through the through hole (54) formed in the anti-loosening screw (5) is tied tightly along the screwing direction of the anti-loosening screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022414045.7U CN213905536U (en) | 2020-10-26 | 2020-10-26 | Anti-loosening device for end plate of power battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022414045.7U CN213905536U (en) | 2020-10-26 | 2020-10-26 | Anti-loosening device for end plate of power battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213905536U true CN213905536U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022414045.7U Active CN213905536U (en) | 2020-10-26 | 2020-10-26 | Anti-loosening device for end plate of power battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213905536U (en) |
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2020
- 2020-10-26 CN CN202022414045.7U patent/CN213905536U/en active Active
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