A buckle for fixing the copper bar and the wire harness of an integrated battery pack, the battery pack

Abstract

The application provides a buckle for fixing a copper bar and a wire harness of an integrated battery pack, and belongs to the technical field of automobile parts. The buckle comprises a support seat, a first clamping groove for fixing the copper bar and a second clamping groove for fixing the wire harness are arranged on the top of the support seat, and side wings are arranged on the bottom of the support seat. An installation mechanism is arranged on the bottom of the support seat, the installation mechanism is installed on an external carrier, and the side wings are in interference fit with the installation surface of the external carrier. The copper bar and the wire harness are fixed simultaneously, the number of buckles required for fixing the copper bar and the wire harness is reduced, the arrangement space occupied by the buckles is reduced, the assembly efficiency is improved, the assembly time is reduced, the overall weight and the overall cost of the battery pack are reduced, and in addition, when the buckle is installed on the external carrier, the side wings on the bottom of the support seat are in interference fit with the installation surface of the external carrier, the vibration damping function is achieved, the stability of the fixing is improved, and the problem of buckle failure in the vibration process is prevented.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a buckle for fixing the integrated battery pack copper busbar and wiring harness, and a battery pack. Background Technology

[0002] As a key component of the power system of new energy vehicles, the battery pack's copper busbars and wiring harnesses form the conduit connecting the internal circuitry, playing a crucial role in its proper operation. During battery pack manufacturing, clips or brackets maintain the neatness and aesthetics of the internal wiring layout, resulting in a more organized internal structure. Simultaneously, during vehicle operation, they effectively protect the copper busbars and wiring harnesses, preventing short circuits caused by vibration, wear of the external insulation layer, and other factors, which could lead to fires and endanger lives and vehicle safety. This is of paramount importance for the overall integration, arrangement, and fixation of the battery pack.

[0003] However, currently, the fixing of the copper busbars and wiring harnesses in the battery pack is usually done separately, making it impossible to fix both simultaneously. This not only occupies a large amount of internal space but also increases assembly time, affecting the production efficiency and overall performance of the battery pack. Furthermore, the clips used to fix the copper busbars and wiring harnesses are mostly commercially available wire harness cable ties. These clips have low stability and strength when fixing the copper busbars, are not convenient to operate, and have poor versatility.

[0004] In addition, existing technologies also use male and female clips to fix copper busbars and wiring harnesses. However, after installation, these clips are prone to failure during continuous vehicle vibration, which poses a hidden danger to the safe operation of the battery pack. Utility Model Content

[0005] To solve the above technical problems, this utility model provides a buckle for fixing the integrated copper busbar and wire harness of the battery pack; on the other hand, it also provides a battery pack.

[0006] The technical problem solved by this utility model can be achieved by the following technical solution:

[0007] A clip for securing an integrated battery pack copper busbar and wiring harness includes:

[0008] The support base has a first slot for fixing copper busbars and a second slot for fixing wire harnesses on its top, and side wings on both sides of its bottom.

[0009] The mounting mechanism is located at the bottom of the support base and is mounted on the external carrier. The side wing is interference-fitted with the mounting surface of the external carrier.

[0010] Preferably, the support base has a hollow structure.

[0011] Preferably, the hollow structure includes a plurality of through holes, the shape of which is any one or more combinations of trapezoidal, circular, oblong, rhomboid, triangular, or irregular shapes.

[0012] Preferably, the first card slot includes:

[0013] A first card plate and a first baffle and a second baffle disposed at both ends of the first card plate;

[0014] The third baffle, one end of which is rotatably connected to the first clamping plate, and the other end of which is provided with a first clamping claw;

[0015] The second card plate has one end rotatably connected to the second baffle, and the other end of the second card plate is provided with a second claw that cooperates with the first claw.

[0016] In the engaged state, the bottom of the second claw abuts against the top of the first baffle, and the first claw abuts against the top of the second claw. The first plate, the first baffle, the second baffle, and the second plate together form a closed space for fixing the copper busbar.

[0017] Preferably, the second claw is further provided with a first limiting rib for restricting the lateral movement of the first claw.

[0018] Preferably, the second card plate and the second baffle are integrally formed, and an arc-shaped groove is provided on the inner side of the connection between the second card plate and the second baffle, so that the second card plate and the second baffle can be rotatably connected.

[0019] Preferably, the second card slot is disposed on the second card plate, and the second card slot includes:

[0020] The first card arm and the second card arm extend from the second card plate in a direction away from the first card slot, and enclose a receiving space with an opening.

[0021] Preferably, a second limiting rib is provided between the outer wall of the first clamping arm and the outer wall of the second clamping arm and the second clamping plate.

[0022] Preferably, the support base, the first slot, the second slot, and the mounting mechanism are integrally formed plastic parts.

[0023] On the other hand, a battery pack is also provided, including the integrated battery pack copper busbar and the buckle for securing the wiring harness as described above.

[0024] The advantages or beneficial effects of this utility model's technical solution are as follows:

[0025] The buckle of this utility model integrates a first slot for fixing the copper busbar and a second slot for fixing the wire harness, realizing the simultaneous fixing of the copper busbar and the wire harness. This reduces the number of buckles required to fix the copper busbar and the wire harness, reduces the space occupied by the buckles, improves assembly efficiency, reduces assembly time, and reduces the overall weight and cost of the battery pack. In addition, when the buckle is installed with the external carrier, the side wings at the bottom of the support base are interference-fitted with the mounting surface of the external carrier, which can play a vibration damping function, improve the stability of the fixation, and prevent the buckle from failing during vibration. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the buckle that integrates the copper busbar of the integrated battery pack and the wire harness in a preferred embodiment of the present invention.

[0027] Figure 2 This is a cross-sectional view of the buckle that integrates the copper busbar of the integrated battery pack and the wire harness in a preferred embodiment of the present invention.

[0028] Figure 3 This is a cross-sectional view of the integrated battery pack copper busbar and wire harness fixing buckle after assembly with the external carrier, which is a preferred embodiment of the present invention. Detailed Implementation

[0029] 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.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0032] In a preferred embodiment of this utility model, based on the above-mentioned problems existing in the prior art, a buckle 100 for fixing the integrated battery pack copper busbar and wiring harness is provided, such as... Figure 1 , Figure 2 and Figure 3 As shown, the buckle 100 includes:

[0033] The support base 1 has a first slot 2 for fixing copper busbars and a second slot 3 for fixing wire harnesses on its top, and side wings 4 on both sides of its bottom.

[0034] The mounting mechanism 5 is located at the bottom of the support base 1 and is mounted on the external carrier 200. The side wing 4 is interference-fitted with the mounting surface 201 of the external carrier 200.

[0035] Specifically, in existing technologies, the battery pack requires separate clips to fix the copper busbars and wiring harnesses, and the clips are prone to failure during vibration.

[0036] The buckle 100 in this embodiment integrates a first slot 2 for fixing copper busbars and a second slot 3 for fixing wire harnesses. It can simultaneously fix copper busbars and wire harnesses, reduce the number of buckles required to fix copper busbars and wire harnesses, reduce the arrangement space occupied by buckles, improve assembly efficiency, reduce assembly time, and reduce the overall weight and cost of the battery pack.

[0037] Meanwhile, since the bottom sides of the support base 1 are provided with side wings 4, the side wings have a certain deformation and are in an interference fit state when the buckle is assembled in place. The side wings have a certain shock absorption effect, preventing the buckle from failing during vibration and improving the stability of the fixation. Moreover, the buckle installation requirements are reduced, and it can be adapted to different mounting surfaces.

[0038] In this embodiment, the support base 1 is made of plastic. Plastic has good elasticity and can deform to a certain extent when subjected to external force, and can return to its original shape when the external force is removed. The plastic material can be made of, but is not limited to, polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS), which is compatible with the moldability of ABS and the mechanical properties, impact strength, temperature resistance, and ultraviolet (UV) resistance of PC.

[0039] In a preferred embodiment, the support base 1 has a hollow structure.

[0040] Specifically, to further enhance the shock absorption effect of support base 1, a hollow structure design is adopted. This hollow structure design creates a specific shaped weak area in support base 1. When the buckle is subjected to impact or vibration load, the properties of the plastic (PC+ABS) material generate a large-scale, recoverable elastic deformation around the hollow area, rather than brittle fracture or irrecoverable plastic deformation, thus dissipating impact energy more efficiently. During the deformation process, the material converts the impact kinetic energy into internal strain energy (elastic potential energy), which is slowly released after unloading (rebound), thereby reducing the peak impact force and duration transmitted to the other side of the support or the supported object.

[0041] The hollow structure design allows for the removal of material from the support base 1, providing greater deformation space for the bracket under stress. The more material removed, the lower the overall structural rigidity, making it easier to deform and absorb energy. This helps to maximize the efficiency of the energy absorption area during deformation while maintaining a certain level of rigidity.

[0042] In a preferred embodiment, the hollow structure includes a plurality of through holes 11.

[0043] Specifically, a hollow structure is formed by opening several through holes 11 in the support base 1.

[0044] In a preferred embodiment, the through hole 11 is any one or more combinations of trapezoidal, circular, waist-shaped, rhomboid, triangular, and irregular shapes.

[0045] Specifically, the through hole 11 can be, but is not limited to, trapezoidal holes, circular holes, oblong holes, rhomboid holes, triangular holes, and irregularly shaped holes. Among them, the cross-section of the oblong hole is elliptical, with semi-circular arcs at both ends and a parallel plane in the middle.

[0046] The hollow structure can use a single hole type or a combination of multiple hole types.

[0047] Furthermore, the through-hole walls of the hollow structure are preferably designed with an inclined shape. When the support is subjected to impact or vibration loads, the force will be transmitted along the inclined side. The inclined side guides the force line to diffuse more smoothly into the surrounding material, thereby reducing the risk of local permanent deformation or fracture and improving the overall ability to absorb impact energy.

[0048] Furthermore, the support base 1 is shaped like an inverted trapezoid, with a wider top and narrower bottom. When the buckle is subjected to impact or vibration loads, the impact force acts on a larger area, and then the deformation is guided to the smaller bottom area by the inclined side of the geometric design, which can reduce the impact generated by the upper copper busbar during vibration.

[0049] In a preferred embodiment, such as Figure 2 As shown, the first card slot 2 includes:

[0050] The first card plate 21 and the first baffle 22 and the second baffle 23 are disposed at both ends of the first card plate 21. The first baffle 21 is disposed at one end of the first card plate 21 and the second baffle 23 is disposed at the other end of the first card plate 21.

[0051] The third baffle 24 has one end rotatably connected to the first clamping plate 21, and the other end of the third baffle 24 is provided with a first clamping claw 241.

[0052] The second card plate 25 has one end rotatably connected to the second baffle 23, and the other end of the second card plate 25 is provided with a second claw 251 that cooperates with the first claw 241.

[0053] In the engaged state, the bottom of the second claw 251 abuts against the top of the first baffle 22, and the first claw 241 abuts against the top of the second claw 251. The first plate 21, the first baffle 22, the second baffle 23, and the second plate 25 enclose a closed space for fixing the copper busbar.

[0054] Specifically, in this embodiment, the first claw 241 on the third baffle 24 and the second claw 251 on the second baffle 25 constitute a locking mechanism to achieve locking and separation of the copper busbar slot in the vertical direction.

[0055] The first claw 241 is a first protrusion extending from the third baffle 24 toward the second claw 25, and the second claw 251 is a second protrusion extending downward from the second claw 25 and then toward the third baffle 24.

[0056] The lower surface of the first protrusion is equal to or slightly lower than the upper surface of the second protrusion. In a static state, the lower surface of the first protrusion abuts against the upper surface of the second protrusion, achieving vertical locking.

[0057] In this embodiment, the third baffle 24 is an elastic structure made of plastic material. Utilizing the elastic deformation characteristics inherent in the plastic material, a certain external force is applied to cause the third baffle 24 to undergo elastic deformation, thereby separating or locking the first claw 241 and the second claw 251.

[0058] Before fixing the copper busbar, a certain external force is applied to cause the third baffle 24 to elastically deform, thereby separating the first claw 241 from the second claw 251. The copper busbar is then placed on the top plane of the support base 1, and an appropriate external force is applied to cause the third baffle 24 to elastically deform, thereby causing the first claw 241 and the second claw 251 to engage and clamp together.

[0059] Similarly, when it is necessary to disassemble the copper busbar, simply apply appropriate external force to separate the first claw 241 from the second claw 251, and the copper busbar can be easily removed, improving the convenience of assembly and maintenance.

[0060] In this embodiment, the first baffle 22 and the second baffle 23 can be arranged vertically upwards to form a narrow and elongated rectangular closed space. Alternatively, the two baffles can be arranged at a certain angle, such as tilting inwards or outwards relative to each other, to form a narrow and elongated trapezoidal or inverted trapezoidal closed space.

[0061] In this embodiment, the first clamping plate 21 is integrally formed with the support base 1. In practical applications, the top plane of the support base 1 is directly used as the first clamping plate 21, which together with the first baffle 22, the second baffle 23 and the second clamping plate 25 at both ends forms a closed space for fixing the copper busbar, preventing the copper busbar from shaking or shifting during the use of the battery pack.

[0062] In a preferred embodiment, the second claw 251 is further provided with a first limiting rib 6 for restricting the lateral movement of the first claw 241.

[0063] Specifically, in this embodiment, to further enhance the stability of the first slot 2, a lateral limiting component is added to the second claw 251 to restrict the lateral movement of the first claw 241. The lateral limiting component is implemented using a first limiting rib 6, which is a protrusion extending upward from the second claw 251.

[0064] Two first limiting ribs 6 are provided, and the two first limiting ribs 6 are located on both sides of the first claw 241 to play a limiting role, thereby preventing the first claw 241 from swaying laterally.

[0065] In a preferred embodiment, the second card plate 25 and the second baffle 23 are integrally formed, and an arc-shaped groove 7 is provided on the inner side of the connection between the second card plate 25 and the second baffle 23 so that the second card plate 25 and the second baffle 23 can be rotatably connected.

[0066] Specifically, considering the elastic deformation characteristics of plastic materials, in this embodiment, an arc-shaped groove 7 is opened on the inner side of the connection between the second card plate 25 and the second baffle 23, so that the second card plate 25 can rotate relative to the second baffle 23.

[0067] In a preferred embodiment, the second card slot 3 is disposed on the second card plate 25, and the second card slot 3 includes:

[0068] The first locking arm 31 and the second locking arm 32 extend from the second locking plate 25 in a direction away from the first locking groove 2, and enclose a receiving space with an opening.

[0069] In this embodiment, the first clamping arm 31 and the second clamping arm 32 are U-shaped, or square or circular with openings.

[0070] Furthermore, the ends of the first clamping arm 31 and the second clamping arm 32 face inward, thereby restricting the wire harness.

[0071] In a preferred embodiment, to better secure the wire harness, second limiting ribs 8 are respectively provided between the outer wall of the first clamping arm 31 and the outer wall of the second clamping arm 32 and the second clamping plate 25. The second limiting ribs prevent lateral swaying of the second clamping groove 3.

[0072] In a preferred embodiment, the support base 1, the first slot 2, the second slot 3, and the mounting mechanism 5 are all integrally molded plastic parts. This integral molding design ensures the overall structural strength and stability of the buckle.

[0073] In this embodiment, the main body of the mounting mechanism 5 adopts a cedar tree structure 51, and the tail adopts a self-tapping screw structure. The cedar tree-shaped main body can form a tight fit with the mounting hole opened on the mounting surface, increasing the contact area with the inner wall of the mounting hole and providing good friction and adhesion; the tail of the self-tapping screw-shaped structure further enhances the stability of the installation.

[0074] In a preferred embodiment of the present invention, a battery pack is also provided, which includes the integrated battery pack copper busbar and the buckle for fixing the wiring harness as described above.

[0075] Specifically, when the above-mentioned buckle is applied to the battery pack, the bottom of the buckle is inserted into the mounting hole 202 of the battery pack crossbeam or side wall through the mounting mechanism 5 to achieve a firm and reliable installation; the buckle can be compatible with the fixing of copper busbars and wire harnesses. The top of the buckle uses the second slot 3 to fix the wire harness, which is convenient for disassembly and assembly; the middle of the buckle uses the first slot 2 to fix the copper busbar, which is locked by the locking mechanism, which is also convenient for disassembly and assembly; at the same time, the bottom of the support base 1 is close to the crossbeam or side wall of the battery pack, which has a certain vibration damping function, avoids interference between the copper busbar and the mounting surface 201, improves the stability of the copper busbar fixing, and prevents the buckle from failing during vibration.

[0076] By using the buckle proposed in this utility model, the problem of fixing copper busbars and wire harnesses in new energy battery packs is solved, enabling the copper busbars and wire harnesses to be integrated and fixed, reducing the number of buckles used to fix the copper busbars and wire harnesses, reducing the space they occupy, reducing the overall weight of the battery pack, improving assembly efficiency, reducing assembly time, and reducing the overall cost of the battery pack.

[0077] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made using the content of this specification and illustrations should be included within the protection scope of the present utility model.

Claims

1. A buckle for fixing an integrated battery pack copper busbar and wiring harness, characterized in that, include: The support base has a first slot for fixing copper busbars and a second slot for fixing wire harnesses on its top, and side wings on both sides of its bottom. The mounting mechanism is located at the bottom of the support base and is mounted on the external carrier. The side wing is interference-fitted with the mounting surface of the external carrier.

2. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 1, characterized in that, The support base has a hollow structure.

3. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 2, characterized in that, The hollow structure includes several through holes, and the shape of the through holes is any one or more combinations of trapezoidal, circular, waist-shaped, rhomboid, triangular, and irregular shapes.

4. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 1, characterized in that, The first card slot includes: A first card plate and a first baffle and a second baffle disposed at both ends of the first card plate; The third baffle, one end of which is rotatably connected to the first clamping plate, and the other end of which is provided with a first clamping claw; The second card plate has one end rotatably connected to the second baffle, and the other end of the second card plate is provided with a second claw that cooperates with the first claw. In the engaged state, the bottom of the second claw abuts against the top of the first baffle, and the first claw abuts against the top of the second claw. The first plate, the first baffle, the second baffle, and the second plate together form a closed space for fixing the copper busbar.

5. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 4, characterized in that, The second claw is also provided with a first limiting rib for restricting the lateral movement of the first claw.

6. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 4, characterized in that, The second card plate and the second baffle are integrally formed, and an arc-shaped groove is provided on the inner side of the connection between the second card plate and the second baffle so that the second card plate and the second baffle can be rotatably connected.

7. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 4, characterized in that, The second card slot is disposed on the second card plate, and the second card slot includes: The first card arm and the second card arm extend from the second card plate in a direction away from the first card slot, and enclose a receiving space with an opening.

8. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 7, characterized in that, The outer walls of the first and second clamping arms are respectively provided with second limiting ribs between them and the second clamping plate.

9. The buckle for fixing the integrated battery pack copper busbar and wire harness according to claim 1, characterized in that, The support base, the first slot, the second slot, and the mounting mechanism are all integrally molded plastic parts.

10. A battery pack, characterized in that, Includes the clips for securing the integrated battery pack copper busbar and wiring harness as described in any one of claims 1-9.

Images