Locking bolt for automobile battery module

Abstract

The utility model discloses a locking bolt for automobile battery module, the right side fixed mounting of plug cap has the protruding block, the right side fixed mounting of protruding block has bolt body, and the movable sleeve joint of protruding block and bolt body junction place has gasket, and the left end in gasket is provided with the anti -loose component for preventing plug cap and bolt body rotation, when the utility model discloses when plug cap and bolt body are connected with the conductive sheet and are vibrated, the anti -loose component can effectively prevent plug cap and bolt body loose, thereby guarantee the stable connection between battery module, secondly, the design of anti -loose component is ingenious, through the mutual cooperation of multiple groups structure, make bolt body not easy loose when receiving external force effect, improve the security and stability of whole battery module, and easy to manufacture and install.

Description

Technical Field

[0001] This utility model relates to the field of locking bolt technology, specifically a locking bolt for automotive battery modules. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as a power source (or use conventional vehicle fuels and adopt new on-board power devices), and integrate advanced technologies in vehicle power control and drive to form automobiles with advanced technical principles, new technologies, and new structures. Some automobiles use battery modules to provide power. In order to achieve internal and external conductive connection, existing battery modules usually have electrode lead-out structures designed on the battery pack shell. These electrode lead-out structures are electrically connected to the battery internally and to cables externally, realizing the transfer of electrical energy from the inside to the outside.

[0003] In the prior art, a connecting bolt for a new energy vehicle battery module (publication number: CN222601292U) discloses a bolt body with an insulating cap at the bolt head and an insulating end at the bolt body. While this prior art ensures insulation performance after bolt fastening by using an injection-molded insulating part at the bolt head, eliminating the need for additional insulating cap installation, the lack of a thread-locking structure during bolt installation, when connecting the bolt to the conductive sheet, makes it susceptible to loosening due to vibrations during vehicle operation. Therefore, this invention provides a locking bolt for an automotive battery module to solve the aforementioned problems. Utility Model Content

[0004] This utility model provides a locking bolt for automotive battery modules, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a locking bolt for an automotive battery module, comprising a bolt cap, a protrusion fixedly installed on the right side of the bolt cap, a bolt body fixedly installed on the right side of the protrusion, a washer movably sleeved at the connection between the protrusion and the bolt body, and an anti-loosening component provided in the left end of the washer for preventing the bolt cap and the bolt body from rotating.

[0006] As a further optimization, the anti-loosening component includes multiple sets of movable grooves, which are annularly formed within the gasket. Each set of movable grooves is equipped with a return spring, and a connecting rod is movably installed at the left end opening of each set of movable grooves. A limit sleeve is fixedly installed at the left end of each set of connecting rods.

[0007] As a further optimization, a groove is provided inside the left end of the limiting sleeve. The inner wall of the groove has the same shape and size as the outer wall of the cap, which can increase the friction between the cap and the limiting sleeve and ensure the anti-loosening effect.

[0008] As a further optimization, an insulating sleeve is provided on the left side of the gasket, and the left end of the insulating sleeve is fixedly connected to the limiting sleeve. The inner wall of the insulating sleeve has the same diameter as the outer wall of the protrusion.

[0009] As a further optimization, the insulating sleeve is made of thermoplastic elastomer and is foldable, which can adapt to battery modules of different sizes and has better applicability.

[0010] As a further optimization, a retaining plate is fixedly installed on the right side of the gasket, and through holes are provided at the connection between the retaining plate and the gasket, as well as on the gasket itself.

[0011] As a further optimization, the rear end of the clamping plate is semi-circular, and the right side of the rear end of the clamping plate is higher than the right side of the clamping plate, which can improve the stability and anti-loosening performance of the locking bolt.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. By setting up anti-loosening components, when the bolt cap and bolt body are connected to the conductive sheet and subjected to vibration, the anti-loosening components can effectively prevent the bolt cap and bolt body from loosening, thereby ensuring a stable connection between battery modules. Secondly, the anti-loosening components are cleverly designed, and through the cooperation of multiple sets of structures, the bolt body is not easy to loosen when subjected to external forces, which improves the safety and stability of the entire battery module.

[0014] 2. The locking bolt of this utility model has a simple structure, is easy to manufacture and install, reduces production costs and installation difficulty, and is conducive to promotion and application. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a front view of the disassembled structure of this utility model;

[0017] Figure 3 This is a front view structural cross-sectional diagram of the anti-loosening component of this utility model;

[0018] Figure 4 for Figure 3 A magnified structural diagram at point A.

[0019] In the diagram: 1. Bolt cap; 2. Protrusion; 3. Bolt body; 4. Washer; 5. Movable groove; 6. Return spring; 7. Connecting rod; 8. Limiting sleeve; 9. Groove; 10. Clamping plate; 11. Through hole; 12. Insulating sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides a locking bolt for automotive battery modules, such as... Figures 1 to 4 As shown, the locking bolt for the car battery module includes a bolt cap 1, a protrusion 2 is fixedly installed on the right side of the bolt cap 1, a bolt body 3 is fixedly installed on the right side of the protrusion 2, a washer 4 is movably sleeved at the connection between the protrusion 2 and the bolt body 3, and an anti-loosening component is provided in the left end of the washer 4 to prevent the bolt cap 1 and the bolt body 3 from rotating.

[0022] In actual operation, the bolt cap 1 and bolt body 3 of the locking bolt are first connected to the conductive sheet of the battery module. Then, by rotating the bolt cap 1 and bolt body 3, the bolt body 3 is inserted into the battery module, thereby achieving a tight connection of the conductive sheet. When the locking bolt is subjected to external forces such as vibration, the anti-loosening components will cooperate with each other and effectively prevent the bolt cap 1 and bolt body 3 from loosening through physical actions such as friction.

[0023] The anti-loosening component includes multiple sets of movable grooves 5, which are annularly formed within the gasket 4. Each set of movable grooves 5 is equipped with a return spring 6. A connecting rod 7 is movably installed at the left end opening of each set of movable grooves 5, and a limit sleeve 8 is fixedly installed at the left end of each set of connecting rods 7.

[0024] After the rotating cap 1 and bolt body 3 fix the conductive sheet, the limiting sleeve 8 and multiple sets of connecting rods 7 are reset and sleeved on the cap 1 under the action of multiple sets of return springs 6, so that the cap 1 and bolt body 3 will not rotate after being tightened, thereby improving the locking of the cap 1 and bolt body 3.

[0025] A groove 9 is provided inside the left end of the limiting sleeve 8, and the inner wall of the groove 9 has the same shape and size as the outer wall of the cap 1.

[0026] The groove 9 allows the limiting sleeve 8 to fit tightly onto the cap 1, thereby increasing the friction between the cap 1 and the limiting sleeve 8 and improving the anti-loosening effect.

[0027] An insulating sleeve 12 is provided on the left side of the gasket 4. The left end of the insulating sleeve 12 is fixedly connected to the limiting sleeve 8. The inner wall of the insulating sleeve 12 has the same diameter as the outer wall of the protrusion 2.

[0028] By wrapping the insulating sleeve 12 with the protrusion 2, when the limiting sleeve 8 is unfolded and fitted onto the cap 1, the part of the protrusion 2 between the gasket 4 and the limiting sleeve 8 is insulated and wrapped.

[0029] The insulating sleeve 12 is made of thermoplastic elastomer and is foldable.

[0030] Since the insulating sleeve 12 is made of thermoplastic elastomer, it has a certain degree of elasticity and plasticity, so it can adapt to battery modules of different sizes, and the insulating sleeve 12 has an insulating effect.

[0031] A clamping plate 10 is fixedly installed on the right side of the gasket 4. Through holes 11 are provided at the connection between the clamping plate 10 and the gasket 4, and on the gasket 4.

[0032] The design of the clamping plate 10 and the through hole 11 allows the rear end of the clamping plate 10 to be clamped onto the edge of the conductive sheet when the gasket 4 is attached to the conductive sheet, thereby preventing the clamping plate 10 from rotating.

[0033] The rear end of the card plate 10 is semi-circular, and the right side of the rear end of the card plate 10 is higher than the right side of the card plate 10.

[0034] This allows the rear end of the clamping plate 10 to be more stably clamped onto the edge of the conductive sheet, further improving the stability and anti-loosening performance of the locking bolt.

[0035] In this invention, during use, the bolt body 3 of the locking bolt is first aligned with the conductive sheet of the battery module. Then, by rotating the bolt cap 1, the bolt cap 1 drives the protrusion 2 and the bolt body 3 to rotate together, thereby inserting the bolt body 3 into the battery module to achieve a tight connection of the conductive sheet. During this process, the multiple sets of connecting rods 7 and limiting sleeves 8 in the anti-loosening component are ejected under the restoring force of multiple sets of return springs 6, so that the groove 9 at the left end of the limiting sleeve 8 is fitted onto the bolt cap 1, effectively preventing the bolt cap 1 and the bolt body 3 from loosening when subjected to external forces such as vibration. Finally, through the setting of the clamping plate 10 and the through hole 11, when the locking bolt is in contact with the conductive sheet, the rear end of the clamping plate 10 can be stably clamped on the edge of the conductive sheet, avoiding the overall rotation of the locking bolt.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A locking bolt for an automotive battery module, comprising a bolt cap (1), characterized in that: A protrusion (2) is fixedly installed on the right side of the bolt cap (1), and a bolt body (3) is fixedly installed on the right side of the protrusion (2). A washer (4) is movably sleeved at the connection between the protrusion (2) and the bolt body (3). An anti-loosening component is provided inside the left end of the washer (4) to prevent the bolt cap (1) and the bolt body (3) from rotating. The anti-loosening component includes multiple sets of movable grooves (5), which are circumferentially opened in the gasket (4). Each set of movable grooves (5) is equipped with a reset spring (6), and a connecting rod (7) is movably installed at the left end opening of each set of movable grooves (5). A limit sleeve (8) is fixedly installed at the left end of each set of connecting rods (7). The left end of the limiting sleeve (8) has a groove (9) and the inner wall of the groove (9) is the same shape and size as the outer wall of the cap (1).

2. The locking bolt for an automotive battery module according to claim 1, characterized in that: An insulating sleeve (12) is provided on the left side of the gasket (4). The left end of the insulating sleeve (12) is fixedly connected to the limiting sleeve (8). The inner wall of the insulating sleeve (12) has the same diameter as the outer wall of the protrusion (2).

3. A locking bolt for an automotive battery module according to claim 2, characterized in that: The insulating sleeve (12) is made of thermoplastic elastomer and is foldable.

4. A locking bolt for an automotive battery module according to claim 1, characterized in that: A clamping plate (10) is fixedly installed on the right side of the gasket (4), and through holes (11) are provided at the connection between the clamping plate (10) and the gasket (4) and on the gasket (4).

5. A locking bolt for an automotive battery module according to claim 4, characterized in that: The rear end of the card plate (10) is semi-circular, and the right side of the rear end of the card plate (10) is higher than the right side of the card plate (10).

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