Anti-rotation copper bar buckle

Abstract

The utility model discloses an anti-rotation copper bar buckle, which comprises a movable sheet, a base and a fixed root part, the movable sheet and the base are connected and define an inner cavity for placing a copper bar, one end of the fixed root part is fixedly connected with the base, the other end of the fixed root part is connected with a target assembly part, and an anti-rotation structure matched with the target assembly part for limiting is arranged in the fixed root part. The anti-rotation copper bar buckle is used for fixing a copper bar in a high-voltage power battery pack, the fixing reliability can be improved, the situation that the buckle rotates after being installed is effectively prevented, and assembly complaints and the part failure rate are greatly reduced; the copper bar buckle can be repeatedly used, so that resource waste is reduced; the metal plates with different thicknesses can be adapted, and the adaptability is high; vibration generated in the moving process of the automobile can be counteracted, and the NVH of the automobile is effectively reduced.

Description

Technical Field

[0001] The utility model relates to an anti-rotation copper bar buckle, belonging to the technical field of battery accessories. Background Art

[0002] In high-voltage power battery packs, long copper bars are usually provided to achieve the transmission of signals and media between battery packs or between battery packs and vehicles. During tests such as battery pack vibration and the movement of the entire vehicle, the copper bar will move in all directions, which will affect the performance of the battery pack and the entire vehicle, so the fixation of the copper bar is crucial. At present, cable ties are mostly used to fix copper bars on the market. Cable ties are disposable products and cannot be reused, resulting in material waste. A small amount of buckles are used for fixing, but the existing copper bar buckles themselves have an unlimited position structure, are easy to rotate, and have poor positioning effects, which will cause assembly complaints, and severe rotation will affect the performance of the battery pack. Moreover, the existing copper bar buckles can only match a limited thickness of sheet metal, and the adaptation range is narrow. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an anti-rotation copper busbar buckle for fixing the copper busbar in a high-voltage power battery pack. The buckle has an anti-rotation limiting structure, can solve the rotation problem of the existing buckle, and can be reused to save resources.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] An anti-rotation copper bar buckle comprises a movable sheet, a base and a fixed root. The movable sheet is connected to the base and surrounds an inner cavity for placing the copper bar. One end of the fixed root is fixedly connected to the base, and the other end is connected to a target assembly part. An anti-rotation structure that cooperates with the target assembly part to limit the position is provided in the fixed root.

[0006] Furthermore, the fixed root is assembled in the elliptical hole of the target assembly part, and the anti-rotation structure includes a short axis fixing body and a long axis fixing body, and the short axis fixing body and the long axis fixing body are respectively in contact with and cooperate with the long axis and short axis of the elliptical hole on the target assembly part so that they are stuck in the elliptical hole, effectively preventing the buckle from rotating on the target assembly part.

[0007] Furthermore, a supporting baffle is provided at the bottom of the base, and when the copper bar is buckled and fixed to the target assembly part, the baffle contacts the surface of the target assembly part near the copper bar.

[0008] Furthermore, the support baffle is an elastic umbrella-shaped baffle. When the copper bar is fixed to the battery pack or body of the vehicle, the copper bar will vibrate during the movement of the vehicle, and the umbrella-shaped baffle has an elastic rebound design and is in direct contact with the target assembly. While it plays a role in fixing and supporting the copper bar, it can also offset the stress and vibration generated by the vibration of the vehicle, which can effectively reduce the NVH (noise, vibration and harshness) of the vehicle.

[0009] Furthermore, the side surface of the fixing root is provided with an upwardly inclined elastic fin.

[0010] Furthermore, when the copper bar buckle is fixed to the target assembly, the elastic fin contacts the far copper bar surface of the target assembly. The umbrella-shaped baffle and the elastic fin are both made of elastomers, which can produce plastic deformation and clamp the target assembly between the two, so that the buckle is effectively locked and fixed on the target assembly.

[0011] Furthermore, the elastic fins are provided with a plurality of groups along the height direction on both sides of the length direction of the fixed root, which can be adapted to target assembly parts of different thicknesses and have strong adaptability.

[0012] Furthermore, the inner cavity where the copper bar is placed is provided with a plurality of limit baffles for limiting the movement of the copper bar, including a Z-direction limit baffle fixedly connected to the inner wall of the movable plate and a Y-direction limit baffle fixedly connected to the inner wall of the base. After the movable plate and the base are closed, the Z-direction limit baffle presses the copper bar from above, and the Y-direction limit baffle limits the lateral movement of the copper bar. By adjusting the inner cavity size of the movable plate and the base, copper bars of different sizes can be adapted.

[0013] Furthermore, the base and the free end of the movable sheet are engaged with each other through hooks to fix the copper busbar.

[0014] Furthermore, the target assembly part is an open plate structure for fixing the copper busbar, including but not limited to body sheet metal, body cross beam, body longitudinal beam, battery pack inner cross beam or battery pack inner longitudinal beam.

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

[0016] The anti-rotation copper bar buckle of the utility model can increase the fixing reliability by setting an anti-rotation structure at the fixing root that cooperates with the target assembly part to limit the position, effectively prevent the buckle from rotating after installation, and greatly reduce assembly complaints and parts failure rate; and the buckle can be reused to reduce resource waste;

[0017] The elastic fin structure set at the fixed root can adapt to sheet metals of different thicknesses and has strong adaptability;

[0018] By setting up an elastic umbrella-shaped baffle, the vibration generated during the movement of the car can be offset and the NVH of the vehicle can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view of an anti-rotation copper bar buckle provided in an embodiment;

[0020] Figure 2 It is a left view of an anti-rotation copper bar buckle provided in an embodiment;

[0021] Figure 3 is an isometric view of an anti-rotation copper bar buckle provided in an embodiment;

[0022] Figure 4 1 is a schematic diagram of the installation of the anti-rotation copper bar buckle described in the embodiment;

[0023] Figure 5 1 is a schematic structural diagram of the fixing root of the anti-rotation copper bar buckle described in the embodiment;

[0024] Figure 6 is a schematic structural diagram of an elliptical hole on a beam according to an embodiment;

[0025] Figure 7 is a schematic diagram of the anti-rotation copper bar buckle fixing the copper bar described in the embodiment;

[0026] Figure 8 It is a schematic diagram of the anti-rotation copper bar buckle described in the embodiment matching with beams of different thicknesses (thinness);

[0027] Fig. 9 It is a schematic diagram of the matching of the anti-rotation copper bar buckle described in the embodiment with beams of different thicknesses.

[0028] In the figure: 1. movable piece; 11. Z-axis limit baffle; 2. base; 21. Y-axis limit baffle; 3. umbrella-shaped baffle; 4. fixed root; 41. short axis fixing body; 42. long axis fixing body; 43. elastic fin; 5. copper bar; 6. vehicle body cross beam; 61. elliptical hole; 62. near copper bar surface; 63. far copper bar surface; 7. hook. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 by specific circumstances.

[0032] This embodiment provides an anti-rotation copper bar buckle, such as Figures 1 to 3 As shown, it includes a movable sheet 1, a base 2, an umbrella-shaped baffle 3 and a fixed root 4. The movable sheet 1 is connected to the base 2 and encloses an inner cavity for placing a copper bus 5. The umbrella-shaped baffle 3 is fixedly connected to the bottom of the base 2. The top of the fixed root 4 is fixedly connected to the base 2, and the bottom is assembled on the body cross beam 6 (target assembly part).

[0033] In some specific embodiments, the target assembly part may be a body sheet metal, a body cross beam, a body longitudinal beam, a battery pack inner cross beam or a battery pack inner longitudinal beam, etc. In this embodiment, the target assembly part is a body cross beam 6; Figures 4 to 6 As shown, the body cross beam 6 is provided with an elliptical hole 61, and the fixing root 4 is assembled in the elliptical hole 61. The fixing root 4 includes an anti-rotation structure composed of a short axis fixing body 41 and a long axis fixing body 42, and the short axis fixing body 41 and the long axis fixing body 42 are respectively in contact with the long axis L1 and the short axis L2 of the elliptical hole 61, so that they are stuck in the elliptical hole 61, effectively preventing the buckle from rotating on the beam 6. A plurality of groups of upwardly inclined elastic fins 43 are provided on both sides of the length direction of the fixing root 4 along the height direction.

[0034] After the copper bar buckle is assembled on the beam 6 through the fixing root 4, the copper bar 5 is placed in the inner cavity surrounded by the movable sheet 1 and the base 2, and then the base 2 and the movable sheet 1 are closed by the hook 7 at their free ends to fix the copper bar 5, and the copper bar 5 can be fixed on the beam 6. Figure 7 By adjusting the inner cavity size of the movable sheet 1 and the base 2, copper bars 5 of different sizes can be adapted. The inner cavity is also provided with a plurality of limit baffles, including a Z-direction limit baffle 11 fixedly connected to the inner wall of the movable sheet 1 and a Y-direction limit baffle 21 fixedly connected to the inner wall of the base 2. After the movable sheet 1 and the base 2 are closed, the Z-direction limit baffle 11 presses the copper bar 5 from above, and the Y-direction limit baffle 21 limits the lateral movement of the copper bar 5.

[0035] In some specific embodiments, the wide end of the umbrella-shaped baffle 3 covers the fixed root 4 downward, and the narrow end faces upward and is fixed to the bottom of the base 2. The copper bar buckle is installed on the body cross beam 6. The bottom surface of the umbrella-shaped baffle 3 contacts the copper bar surface 62 near the body cross beam 6, and the elastic fin 43 contacts the copper bar surface 63 far from the body cross beam 6. The umbrella-shaped baffle 3 and the elastic fin 4 are both elastic bodies, which can produce plastic deformation and clamp the body cross beam 6 between the two, so that the buckle is effectively locked and fixed on the body cross beam 6. The umbrella-shaped baffle 3 is in direct contact with the body cross beam 6, and while it plays the role of fixing and supporting the copper bar 5, it can also offset the stress and vibration generated when the vehicle vibrates, and can effectively reduce the NVH of the vehicle.

[0036] like Figure 8 As shown, in a specific embodiment, multiple groups of elastic fins 43 can be adapted to target assembly parts of different thicknesses (0.6-6 mm), and have strong versatility.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An anti-rotation copper bar buckle, characterized in that: The invention comprises a movable sheet (1), a base (2) and a fixed root (4), wherein the movable sheet (1) is connected to the base (2) and encloses an inner cavity for placing a copper bar (5), one end of the fixed root (4) is fixedly connected to the base (2), and the other end is connected to a target assembly part, and an anti-rotation structure for cooperating with the target assembly part and limiting the position is provided in the fixed root (4).

2. The anti-rotation copper bar buckle according to claim 1, characterized in that: The fixing root (4) is assembled in the elliptical hole of the target assembly part, and the anti-rotation structure comprises a short axis fixing body (41) and a long axis fixing body, wherein the short axis fixing body (41) and the long axis fixing body (42) are respectively in contact with the long axis and the short axis of the elliptical hole (61) on the target assembly part so as to be stuck in the elliptical hole.

3. The anti-rotation copper bar buckle according to claim 1, characterized in that: The base (2) is also provided with a supporting baffle at the bottom, and when the copper bar buckle is fixed to the target assembly part, the baffle contacts the copper bar-proximal surface (62) of the target assembly part.

4. The anti-rotation copper bar buckle according to claim 3, characterized in that: The baffle is an elastic umbrella-shaped baffle (3).

5. The anti-rotation copper bar buckle according to claim 1, characterized in that: An upwardly inclined elastic fin (43) is provided on the side surface of the fixed root (4).

6. The anti-rotation copper bar buckle according to claim 5, characterized in that: When the copper bar buckle is fixed to the target assembly part, the elastic fin (43) contacts the far copper bar surface (63) of the target assembly part.

7. The anti-rotation copper bar buckle according to claim 5, characterized in that: The elastic fins (43) are provided in a plurality of groups along the height direction on both sides of the fixed root (4) in the length direction.

8. The anti-rotation copper bar buckle according to claim 1, characterized in that: A plurality of limit baffles for limiting the movement of the copper busbar (5) are provided in the inner cavity for placing the copper busbar, including a Z-direction limit baffle (11) fixedly connected to the inner wall of the movable plate (1) and a Y-direction limit baffle (21) fixedly connected to the inner wall of the base (2).

9. The anti-rotation copper bar buckle according to claim 1, characterized in that: The free ends of the base (2) and the movable sheet (1) are closed by means of hooks (7) to fix the copper busbar (5).

10. The anti-rotation copper bar buckle according to claim 1, characterized in that: The target assembly part is an open plate structure for fixing the copper busbar (5), including but not limited to a body sheet metal, a body cross beam (6), a body longitudinal beam, a battery pack inner cross beam or a battery pack inner longitudinal beam.

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