Buckle assembly and power battery pack

Abstract

The utility model provides a buckle assembly and a power battery pack. The buckle assembly comprises a main body piece, a first buckle body and a second buckle body, wherein the first buckle body and the second buckle body are detachably connected to the two ends of the main body piece; the first buckle body is provided with a binding belt used for binding a wire harness or a copper bar, and the second buckle body is provided with a fixing part connected with an external component. The main body piece is provided with a plurality of sleeves which are sequentially connected in a sleeved mode, the overall dimensions of the cross sections of the sleeves are gradually reduced, and in every two adjacent sleeves, the sleeve with the smaller overall dimension of the cross section can slide relative to the sleeve with the larger overall dimension of the cross section, so that the distance between the first buckle body and the second buckle body is adjusted. According to the buckle assembly provided by the utility model, by adjusting the distance between the first buckle body and the second buckle body, the installation height of the wire harness or the copper bar can be adjusted, and the trend requirement of the copper bar or the wire harness can be better met, so that the universality of the buckle can be improved, and the development cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness fixings, and in particular to a buckle assembly. The utility model also relates to a power battery pack provided with the buckle assembly. Background Art

[0002] In order to meet the requirements of copper busbars and wiring harnesses, brackets of different heights are developed to meet the fixing requirements of wiring harnesses or copper busbars. However, there are many types of brackets in power battery packs, and they lack consistency, which also affects the appearance. In addition, the mold opening costs of brackets with different structures increase the cost of the battery pack. In addition, the different structural brackets in the battery pack greatly reduce the space inside the pack, affecting the utilization rate of the battery pack, which leads to the lack of market competitiveness of battery pack products. Utility Model Content

[0003] In view of this, the utility model aims to provide a buckle assembly, so as to be able to adjust the installation height of the wire harness or the copper busbar, thereby improving the versatility of the buckle.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A buckle assembly comprises a main body, and a first buckle body and a second buckle body detachably connected to two ends of the main body;

[0006] The first buckle body is provided with a strap for bundling a wire harness or a copper bar, and the second buckle body has a fixing portion connected to an external component;

[0007] The main body has a plurality of sleeves which are sequentially sleeved and connected, and the cross-sectional profile dimensions of the plurality of sleeves are gradually reduced. Among two adjacent sleeves, the sleeve with a smaller cross-sectional profile dimension can slide relative to the sleeve with a larger cross-sectional profile dimension to adjust the distance between the first buckle body and the second buckle body.

[0008] Furthermore, the first buckle body is connected to the main body by buckling; and / or the second buckle body is connected to the main body by buckling.

[0009] Furthermore, a first clamping portion is provided at one end of the first clamping body away from the wiring harness tie, a first clamping hole is provided on the main body, and the first clamping portion can be clamped in the first clamping hole; and / or a second clamping portion is provided on the second clamping body, a second clamping hole is provided on the main body, and the second clamping portion can be clamped in the second clamping hole.

[0010] Further, the first clamping portion has a first center body and a first elastic sheet body arranged around the first center body, the first elastic sheet body is a plurality of first elastic sheet bodies arranged at intervals along the axial direction of the first center body, and any one of the first elastic sheet bodies can pass through the first clamping hole and be clamped on the side of the first clamping hole; and / or, the second clamping portion has a second center body and a second elastic sheet body arranged around the second center body, the second elastic sheet body is a plurality of first elastic sheet bodies arranged at intervals along the axial direction of the second center body, and any one of the second elastic sheet bodies can pass through the second clamping hole and be clamped on the side of the second clamping hole.

[0011] Furthermore, the fixing portion is connected to the external component by snapping.

[0012] Furthermore, the cross section of the sleeve is circular, triangular or rectangular.

[0013] Furthermore, a limiting structure is provided between two adjacent sleeves, and the limiting structure is used to limit the displacement of the sleeve with a smaller cross-sectional profile relative to the sleeve with a larger cross-sectional profile.

[0014] Furthermore, the limiting structure includes a limiting protrusion provided on one of the two adjacent sleeves, and a first limiting hole and a second limiting hole provided on the other of the two adjacent sleeves; the first limiting hole and the second limiting hole are arranged at intervals along the sliding direction, and the limiting protrusion can slide between the first limiting hole and the second limiting hole, and can be clamped in the first limiting hole or the second limiting hole.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The buckle assembly of the utility model can adjust the distance between the first buckle body and the second buckle body by optimizing the structure of the main body, that is, it can adjust the installation height of the wire harness or copper busbar, so as to better meet the direction requirements of the wire harness or copper busbar, and can also improve the versatility of the buckle and reduce the development cost. At the same time, the first buckle body and the second buckle body can be detachably connected, and the structure is simple, easy to design and implement, and has a good use effect.

[0017] In addition, the first buckle body is connected to the main body by snapping, which is convenient for assembling the first buckle body and the main body. The second buckle body is connected to the main body by snapping, which is convenient for assembling the second buckle body and the main body. The first snap-fitting part and the first snap-fitting hole are snap-fitted, and the second snap-fitting hole part and the second snap-fitting hole are snap-fitted, which has a simple structure and is convenient for assembly.

[0018] Secondly, the first clamping part adopts the structure of the first central body and the first elastic sheet, which has the characteristics of simple structure and easy operation. Moreover, when the first clamping part is inserted into the first clamping hole, the elastic deformation of the first elastic sheet facilitates the first clamping hole to be passed through, and the deformation of the first elastic sheet resets the first elastic sheet so that the first elastic sheet is clamped on the side of the first clamping hole, thereby realizing the clamping of the first clamping part with the first clamping hole. The second clamping part has the same structure as the first clamping part, and also has the characteristics of simple structure and easy operation.

[0019] Furthermore, the fixing part is connected with the external component by clamping, which is conducive to improving the convenience of installing the buckle assembly on the external component. The cross section of the sleeve is circular, triangular or rectangular, which has the characteristics of simple structure and convenient processing and preparation, and is also conducive to improving the stability of the buckle assembly.

[0020] In addition, the limiting structure arranged between two adjacent sleeves can limit the displacement of the sleeves to ensure the reliability of height adjustment. The limiting structure adopts the cooperation of the limiting protrusion with the first limiting hole and the second limiting hole, and has the characteristics of simple structure and easy implementation.

[0021] Another object of the present utility model is to provide a power battery pack, in which the buckle assembly as described above is provided, and the external component includes a shell of the power battery pack.

[0022] The power battery pack of the utility model, by adopting the above-mentioned buckle assembly, can adjust the overall size of the main body according to different needs, and adjust the installation height of the wiring harness or copper busbar, so as to meet the direction requirements of the wiring harness or copper busbar and improve the internal space utilization of the power battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of the buckle assembly according to an embodiment of the utility model from a first perspective;

[0025] Figure 2 It is a structural schematic diagram of the buckle assembly according to an embodiment of the utility model from a second viewing angle;

[0026] Figure 3 It is a structural schematic diagram of the main body of the embodiment of the utility model from a first viewing angle;

[0027] Figure 4 A schematic structural diagram of a main body according to an embodiment of the utility model from a second viewing angle;

[0028] Figure 5 for Figure 4 Section view from the middle AA direction;

[0029] Figure 6 This is a schematic structural diagram of the first buckle body according to an embodiment of the utility model;

[0030] Figure 7 This is a schematic structural diagram of the second buckle body according to an embodiment of the utility model;

[0031] Description of reference numerals:

[0032] 1. Main body; 11. First sleeve; 12. Second sleeve; 13. Third sleeve;

[0033] 2. first buckle body; 21. cable tie; 22. first clamping portion; 221. first central body; 222. first elastic sheet;

[0034] 3. second buckle body; 31. fixing part; 32. second clamping part; 311. third central body; 312. third elastic sheet; 321. second central body; 322. second elastic sheet;

[0035] 10. First clamping hole; 20. Second clamping hole; 30. Limiting protrusion; 40. First limiting hole; 50. Second limiting hole. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] In the description of the present invention, it should be noted that if there are terms such as "upper", "lower", "inner", "outer" and the like indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first" and "second", they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] Embodiment 1

[0041] This embodiment relates to a buckle assembly, which can adjust the installation height of a wiring harness or a copper busbar, thereby improving the versatility of the buckle and reducing development costs.

[0042] In terms of overall composition, Figure 1 and Figure 2 As shown, the buckle assembly of this embodiment includes a main body 1, and a first buckle body 2 and a second buckle body 3 detachably connected to two ends of the main body 1.

[0043] The first buckle body 2 is provided with a strap 21 for bundling a wire harness or a copper bar, and the second buckle body 3 has a fixing portion 31 connected to an external component. The main body 1 has a plurality of sleeves which are sequentially connected, and the cross-sectional profiles of the plurality of sleeves are gradually reduced. Among two adjacent sleeves, the sleeve with a smaller cross-sectional profile can slide relative to the sleeve with a larger cross-sectional profile, so as to adjust the distance between the first buckle body 2 and the second buckle body 3.

[0044] At this time, the fixing portion 31 provided on the second buckle body 3 can make the buckle assembly connected to the external component as a whole. By sliding the sleeve with a smaller cross-sectional profile relative to the sleeve with a larger cross-sectional profile, the distance between the first buckle body 2 and the second buckle body 3 can be adjusted, that is, the installation height of the wiring harness or the copper busbar can be adjusted, so as to better meet the requirements of the direction of the wiring harness or the copper busbar, improve the versatility of the buckle, and reduce the R&D cost. At the same time, the first buckle body 2 and the second buckle body 3 can be detachably connected to the main body 1, which is convenient for the processing and preparation of the main body 1, and is also conducive to the assembly of the first buckle body 2 and the second buckle body 3 with the main body 1.

[0045] Based on the above overall introduction, for details, continue to refer to Figure 1 and Figure 2 As shown, combined with Figures 3 to 5As an exemplary structure, in this embodiment, the main body 1 has a first sleeve 11, a second sleeve 12 and a third sleeve 13 which are sequentially sleeved and connected, and the cross-sectional profiles of the first sleeve 11, the second sleeve 12 and the third sleeve 13 are gradually reduced. That is, the second sleeve 12 is sleeved in the first sleeve 11, and the third sleeve 13 is sleeved in the second sleeve 12, and the second sleeve 12 can slide in the first sleeve 11 and has a storage state and an extended state, and the third sleeve 13 can slide in the second sleeve 12 and also has a storage state and an extended state. By the storage and extension of the second sleeve 12 and the third sleeve 13, the overall size of the main body 1 is adjusted, that is, the distance between the first buckle body 2 and the second buckle body 3 is adjusted.

[0046] To ensure the reliability of the overall size adjustment of the main body 1, that is, to ensure the reliability of the installation height adjustment of the wiring harness or copper busbar. Figure 4 and Figure 5 As shown, a limiting structure is provided between two adjacent sleeves, and the limiting structure is used to limit the displacement of the sleeve with a smaller cross-sectional profile size relative to the sleeve with a larger cross-sectional profile size.

[0047] Specifically, the limiting structure includes a limiting protrusion 30 provided on one of the two adjacent sleeves, and a first limiting hole 40 and a second limiting hole 50 provided on the other of the two adjacent sleeves. The first limiting hole 40 and the second limiting hole 50 are arranged at intervals along the sliding direction, and the limiting protrusion 30 can slide between the first limiting hole 40 and the second limiting hole 50, and can be clamped in the first limiting hole 40 or the second limiting hole 50.

[0048] like Figure 5 As shown, a first limiting hole 40 and a second limiting hole 50 are arranged at intervals on the first sleeve 11, and a limiting protrusion 30 is provided on the outer peripheral surface of the second sleeve 12. The limiting protrusion 30 can slide between the first limiting hole 40 and the second limiting hole 50 on the first sleeve 11, and the limiting protrusion 30 can be clamped in the first limiting hole 40 or the second limiting hole 50, so that the second sleeve 12 is in a stored state or an extended state relative to the first sleeve 11.

[0049] Similarly, the first limiting hole 40 and the second limiting hole 50 are also arranged at intervals on the second sleeve 12, and a limiting protrusion 30 is also provided on the outer peripheral surface of the third sleeve 13. The limiting protrusion 30 can also slide between the first limiting hole 40 and the second limiting hole 50 on the second sleeve 12, and the limiting protrusion 30 can also be clamped in the corresponding first limiting hole 40 or the second limiting hole 50, so that the third sleeve 13 is in a stored state or an extended state relative to the second sleeve 12.

[0050] As a preferred embodiment, in this embodiment, the cross section of the sleeve is circular, triangular or rectangular. This structure is simple and easy to process and prepare, and the hollow structure can also improve the stability of the main body 1, and it is also convenient to prepare and form the limiting protrusion 30, the first limiting hole 40 and the second limiting hole 50.

[0051] In addition, it is worth mentioning that, in the present embodiment, the main body 1 is preferably made of iron, aluminum, stainless steel or alloy, etc., so that the structural strength of the main body 1 can be improved.

[0052] Combination Figure 1 , Figure 5 as well as Figure 6 and Figure 7 As shown, in this embodiment, the first buckle body 2 is connected to the main body 1 by buckling, and, preferably, the second buckle body 3 is also connected to the main body 1 by buckling.

[0053] In terms of specific structure, a first clamping portion 22 is provided at one end of the first buckle body 2 away from the wire harness tie 21, and a first clamping hole 10 is provided on the main body 1, and the first clamping portion 22 can be clamped in the first clamping hole 10. Similarly, a second clamping portion 32 is also provided on the second buckle body 3, and a second clamping hole 20 is provided on the main body 1, and the second clamping portion 32 can be clamped in the second clamping hole 20. Through the clamping of the first clamping portion 22 and the first clamping hole 10, the first buckle body 2 and the main body 1 are clamped and connected, and the assembly of the two is facilitated. Through the clamping of the second clamping portion 32 and the second clamping hole 20, the second buckle body 3 and the main body 1 are clamped and connected, and the assembly of the two is also facilitated.

[0054] In this embodiment, as a preference, the fixing portion 31 provided on the second buckle body 3 is connected to the external component by snapping, which facilitates the rapid installation and fixation of the second buckle body 3 and the external component. Of course, it is understandable that the fixing portion 31 can also be fixedly connected to the external component by screwing or plugging. In addition, it is also worth noting that the external component is, for example, a side beam of the lower shell of the battery pack, or a module crossbeam in the lower shell of the battery pack, or other components that need to fix the wiring harness or copper busbar.

[0055] As a further preferred embodiment, see Figure 6 and Figure 7 As shown, the first clamping portion 22 has the same structure as the second clamping portion 32 and the fixing portion 31. Specifically, the first clamping portion 22 has a first central body 221 and a first elastic sheet 222 arranged around the first central body 221. The first elastic sheet 222 is a plurality of sheets arranged at intervals along the axial direction of the first central body 221, and any first elastic sheet 222 can pass through the first clamping hole 10 and be clamped on the side of the first clamping hole 10.

[0056] The second clamping portion 32 also has a second central body 321, and a second elastic sheet 322 arranged around the second central body 321. The second elastic sheet 322 is also arranged in a plurality along the axial direction of the second central body 321, and any second elastic sheet 322 can pass through the second clamping hole 20 and be clamped on the side of the second clamping hole 20. The fixing portion 31 also has a third central body 311, and a third elastic sheet 312 arranged around the third central body 311. The third elastic sheet 312 is arranged in a plurality along the axial direction of the third central body 311, and any third elastic sheet 312 can pass through the clamping hole formed on the external member and be clamped on the side of the clamping hole, that is, clamped on the side of the external member.

[0057] It should be noted that, in addition to the above-mentioned structural form, the first clamping portion 22, the second clamping portion 32 and the fixing portion 31 may also adopt different structural forms, such as a claw structure, so as to achieve clamping connection with the corresponding clamping hole. In addition, it should also be noted that, in addition to the first buckle body 2 and the second buckle body 3 being clamped and connected to the main body 1, only the first buckle body 2 may be clamped and connected to the main body 1, and the second buckle body 3 may be connected to the main body 1 by screwing or plugging. Alternatively, only the second buckle body 3 may be clamped and connected to the main body 1, and in this case, the first buckle body 2 may be connected to the main body 1 by screwing or plugging.

[0058] The buckle assembly of this embodiment optimizes the structure of the main part 1, and the first buckle body 2 and the second buckle body 3 detachably connected to the main part 1, and makes the overall size of the main part 1 adjustable, so that the installation height of the wiring harness and the copper busbar can be adjusted to better meet the direction requirements of the wiring harness or the copper busbar, improve the versatility of the buckle, and reduce development costs.

[0059] Embodiment 2

[0060] The present embodiment relates to a power battery pack, in which the snap-fit ​​assembly described in the first embodiment is provided, wherein the external component includes a shell of the power battery pack, such as a side beam of the lower shell of the battery pack or a module cross beam in the lower shell of the battery pack.

[0061] The power battery pack of this embodiment, by adopting the snap assembly of the first embodiment, can adjust the overall size of the main body 1 and the installation height of the wire harness or copper bus according to different requirements of the wiring harness or copper busbar, thereby facilitating the layout of the wire harness or copper busbar and improving the internal space utilization of the power battery pack, and has a good use effect.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A buckle assembly, characterized in that: It comprises a main body, and a first buckle body and a second buckle body detachably connected to two ends of the main body; The first buckle body is provided with a strap for bundling a wire harness or a copper bar, and the second buckle body has a fixing portion connected to an external component; The main body has a plurality of sleeves which are sequentially sleeved and connected, and the cross-sectional profile dimensions of the plurality of sleeves are gradually reduced. Among two adjacent sleeves, the sleeve with a smaller cross-sectional profile dimension can slide relative to the sleeve with a larger cross-sectional profile dimension to adjust the distance between the first buckle body and the second buckle body.

2. The buckle assembly according to claim 1, characterized in that: The first buckle body is connected to the main body by snapping; and / or, The second buckle body is connected to the main body by snapping.

3. The buckle assembly according to claim 2, characterized in that: A first clamping portion is provided at one end of the first buckle body away from the wire harness tie, a first clamping hole is provided on the main body, and the first clamping portion can be clamped in the first clamping hole; and / or, The second buckle body is provided with a second clamping portion, the main body is provided with a second clamping hole, and the second clamping portion can be clamped in the second clamping hole.

4. The buckle assembly according to claim 3, characterized in that: The first clamping portion has a first central body and a first elastic sheet disposed around the first central body, wherein the first elastic sheet is a plurality of sheets arranged at intervals along the axial direction of the first central body, and any of the first elastic sheets can pass through the first clamping hole and be clamped on a side of the first clamping hole; and / or, The second clamping portion has a second center body and a second elastic sheet body arranged around the second center body. The second elastic sheet bodies are multiple and arranged at intervals along the axial direction of the second center body. Any second elastic sheet body can pass through the second clamping hole and be clamped on the side of the second clamping hole.

5. The buckle assembly according to claim 1, characterized in that: The fixing portion is connected to the external component by clamping.

6. The buckle assembly according to claim 1, characterized in that: The cross section of the sleeve is circular, triangular or rectangular.

7. The buckle assembly according to any one of claims 1 to 6, characterized in that: A limiting structure is provided between two adjacent sleeves, and the limiting structure is used to limit the displacement of the sleeve with a smaller cross-sectional profile relative to the sleeve with a larger cross-sectional profile.

8. The buckle assembly according to claim 7, characterized in that: The limiting structure comprises a limiting protrusion provided on one of the two adjacent sleeves, and a first limiting hole and a second limiting hole provided on the other of the two adjacent sleeves; The first limiting hole and the second limiting hole are arranged at intervals along the sliding direction, and the limiting protrusion can slide between the first limiting hole and the second limiting hole and can be clamped in the first limiting hole or the second limiting hole.

9. A power battery pack, characterized in that: The power battery pack is provided with the buckle assembly according to any one of claims 1 to 8, and the external component comprises a shell of the power battery pack.

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