Wire harness fixing device, battery module support and battery pack

Abstract

The utility model discloses a wire harness fixing device, a battery module support and a battery pack, and relates to the technical field of battery module wire harness fixing. The wire harness fixing device comprises a fixing part, at least one locking part and a bending part. The fixing part extends along a first direction; one end, in the second direction, of the locking part is connected with the fixing part; one end of the locking part is connected with the fixing part, the bending part is connected with the other end of the locking part and can elastically deform so as to rotate clockwise or anticlockwise around the locking part, and the fixing part, the locking part and the bending part define a limiting space, so that a wire harness can be arranged in the limiting space in a penetrating mode in the third direction. By adopting the technology provided by the utility model, wire harnesses with different sizes and different numbers can be effectively compatible.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module wiring harness fixing, in particular to a wiring harness fixing device, a battery module bracket and a battery pack. Background Art

[0002] The battery module is the basic unit of the battery pack. In electric vehicles, energy storage systems or other battery-powered devices, the battery module is a module composed of multiple battery cells, which are connected in series or parallel to provide the required voltage and capacity, thus requiring a large number of wiring harnesses for the electrical connection between the cells.

[0003] In order to avoid poor contact of the battery module caused by damage to the wiring harness, the internal wiring harness usually needs to be fixed. At present, multiple wiring harnesses are mainly fixed by means of buckles or cable ties. However, when using cable ties to fix the wiring harness, although it can effectively lock the wiring harness, it is difficult to arrange the wiring harness; and compared with cable ties, although buckles are convenient for arranging the wiring harness, it is still difficult to be compatible with wiring harnesses of different sizes and quantities. Utility Model Content

[0004] The utility model provides a wire harness fixing device, a battery module bracket and a battery pack, so as to solve the problem that the wire harness fixing method in the prior art is difficult to be compatible with wire harnesses of different sizes and different quantities.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is to provide a wire harness fixing device, which includes: a fixing portion, at least one locking portion and a bending portion.

[0006] The fixing portion extends along a first direction; one end of the locking portion along a second direction is connected to the fixing portion; the bending portion is connected to the other end of the locking portion and can undergo elastic deformation to rotate clockwise or counterclockwise around the locking portion, wherein the fixing portion, the locking portion and the bending portion enclose a limiting space so that the wiring harness can be passed through the limiting space along a third direction.

[0007] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0008] The wire harness fixing device can be installed and fixed by the fixing part, so that the installation position of the fixing part can be set according to the installation plane and requirements, thereby realizing the layout of the wire harness. The fixing part, the locking part and the bending part are combined together to form a limited space where the wire harness can pass through, which is convenient for the wire harness to pass through the limited space, and the size specifications of the wire harness that can pass through the limited space can be widely adapted.

[0009] In addition, since the bent portion can undergo elastic deformation, the wire harness does not need to penetrate the limiting space. Instead, the wire harness applies pressure to the bent portion and enters the limiting space from the side, making the threading method of the wire harness more convenient. And when the number of wire harnesses is too large or their specifications are large, the bent portion can also provide a pressing force for the wire harness to prevent the wire harness from coming out or shifting.

[0010] In some embodiments, the locking portions are symmetrically arranged on both sides of the fixing portion along the second direction, so that the locking portions and the fixing portion together form a T-shaped structure.

[0011] Adopting the above technical solution, the T-shaped structure provides a higher support base and makes limiting spaces formed on both sides of the fixing portion, facilitating more wire harnesses to pass through the fixed point, thereby providing more possibilities for wire harness layout.

[0012] In some embodiments, the bent portion includes a deformation section and an elastic piece. One side of the deformation section is connected to the locking portion, and the other side is connected to the elastic piece. Among them, the connection angle between the elastic piece and the deformation section is an acute angle. Further, the deformation section is arc-shaped.

[0013] Adopting the above technical solution, the elastic piece of the bent portion is bent towards the inside of the limiting space. When the number of wire harnesses in the limiting space is too large, the elastic piece can abut against the internal wire harness to prevent the wire harness from shifting. Among them, the deformation section is arc-shaped, enabling it to quickly return to its initial shape after deformation, and the arc shape can also facilitate adapting to wire harnesses of different diameters and shapes.

[0014] In some embodiments, an arc section is recessed on one side of the fixing portion along the second direction towards the bent portion.

[0015] Adopting the above technical solution, one side of the fixing portion forming the limiting space is set as an inward concave arc shape, which can increase the limiting space without occupying external space and improve space utilization rate. And the arc shape can further adapt to wire harnesses of different diameters and different shapes.

[0016] In some embodiments, the limiting space further includes a rubber pad, and the rubber pad is respectively covered on the fixing portion, the locking portion and the bent portion.

[0017] Adopting the above technical solution, the rubber material has good elasticity and toughness, can absorb vibration and impact. By covering the rubber pad, the friction generated by the collision between the wire harness and the fixing portion, the locking portion and the bent portion during vibration can be reduced.

[0018] In some embodiments, the material of the wire harness fixing device is hard plastic.

[0019] In some embodiments, the present application further provides a battery module bracket, including a frame plate and one or more of the above-described wire harness fixing devices, wherein a plurality of the wire harness fixing devices are spaced apart and disposed on the frame plate.

[0020] In some embodiments, the frame plate further includes a plurality of wire harness connectors, each wire harness connector including a bolt portion and a collar connected to the bolt portion. The bolt portion is fixed on the frame plate, and the collar has a wire groove for the wire harness to pass through. Among them, the wire harness fixing devices and the wire harness connectors are spaced apart.

[0021] With the above technical solution, the wire harness fixing device is installed on the outer side of the battery module bracket. Thus, through the installation layout of a plurality of wire harness fixing devices, the wire harness can be effectively managed and organized, making the wire harness layout more orderly. Among them, the wire harness connector is connected by a bolt portion and a collar, making its connection more stable.

[0022] In some embodiments, the present application further provides a battery pack, including the above-described battery module bracket and a battery module. The battery module bracket covers the outer side of the battery module. Among them, the wire harness passes through the battery module bracket along the battery module and is arranged on the outer side of the battery module bracket through the wire harness fixing device and the wire harness connector.

[0023] With the above technical solution, in the current wire harness fixing method, some wire harnesses are located in the housing of the battery pack, and some wire harnesses are located in the internal battery module bracket. This method makes it easy to pull the wire harness during the repair of the battery pack, resulting in unstable wire harness connection. Therefore, through the combined arrangement of the wire harness fixing device and the wire harness connector, all wire harnesses can be placed on the battery module bracket, effectively avoiding the wire harness pulling phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where:

[0025] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of a wire harness fixing device provided by the present invention Figure 1 ;

[0026] Figure 2 is a three-dimensional structural schematic diagram of an embodiment of a wire harness fixing device provided by the present invention Figure 2 ;

[0027] Figure 3 Schematic perspective view of wire harness threading of an embodiment of a wire harness fixing device provided by the present utility model;

[0028] Figure 4 Front view of an embodiment of a wire harness fixing device provided by the present utility model;

[0029] Figure 5 Top view of an embodiment of a battery module bracket provided by the present utility model;

[0030] Figure 6 Schematic perspective view of an embodiment of a wire harness connecting member of a battery module bracket provided by the present utility model;

[0031] Figure 7 Schematic perspective view of an embodiment of a battery module bracket provided by the present utility model.

[0032] In the figure:

[0033] Wire harness fixing device - 1; fixing part - 10; arc section - 11; locking part - 20; bending part - 30; deformation section - 31: elastic piece - 32; limiting space - 40; rubber pad - 41;

[0034] Frame plate - 50; wire harness connecting member - 51; bolt part - 510; collar - 511; wire groove - 512; wire harness - 60. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] For the convenience of subsequent description, before describing the specific structures of the wire harness fixing device 1, the battery module bracket, and the battery pack, the present application first combines Figure 1 Define the first direction (Z), the second direction (X), and the third direction (Y). Among them, the first direction is the height direction of the wire harness fixing device 1 when it is placed normally, for example, the Z direction; the second direction is the length direction of the wire harness fixing device 1 when it is placed normally, for example, the X direction; the third direction is the width direction of the wire harness fixing device 1 when it is placed normally, for example, the Y direction. In the present application, the first direction (Z), the second direction (X), and the third direction (Y) are perpendicular to each other.

[0037] It can be understood that the perpendicularity in the present application is not absolute perpendicularity. The approximate perpendicularity caused by processing errors and assembly errors (for example, the included angle between two structural features is 89.9°) is also within the scope of the perpendicularity in the present application.

[0038] See Figure 1 as shown Figure 1 shows a schematic three-dimensional structure of an embodiment of a wire harness fixing device 1 provided in the present application. Figure 1 .

[0039] In some embodiments, the wire harness fixing device 1 includes: a fixing portion 10, at least one locking portion 20, and a bending portion 30. Among them, the fixing portion 10 extends along a first direction; one end of the locking portion 20 along a second direction is connected to the fixing portion 10; the bending portion 30 is connected to the other end of the locking portion 20 and can undergo elastic deformation to rotate clockwise or counterclockwise around the locking portion 20. Among them, the fixing portion 10, the locking portion 20, and the bending portion 30 enclose a limiting space 40 so that the wire harness 60 can be threaded through the limiting space 40 along a third direction.

[0040] In the embodiment of the present application, the wire harness fixing device 1 can be installed and fixed through the fixing portion 10, so as to determine the installation position of the fixing portion 10 according to the installation plane and the wire arrangement design requirements, and further realize the layout of the wire harness 60.

[0041] Among them, the fixing portion 10, the locking portion 20, and the bending portion 30 jointly form a limiting space 40 through which the wire harness 60 can pass, so that the size and specification adaptability of the wire harness 60 that can pass through the limiting space 40 are large. Exemplarily, the limiting space 40 is a semi-closed space, and there is an expandable gap between the bending portion 30 and the fixing portion 10.

[0042] In addition, since the bending portion 30 can undergo elastic deformation, the wire harness 60 does not need to penetrate the limiting space 40, but enters the limiting space 40 from the side by applying pressure to the bending portion 30 by the wire harness 60, making the threading method of the wire harness 60 more convenient. That is, when the wire harness 60 applies force to the bending portion 30 from the side, the bending portion 30 deforms inward, and the gap between the bending portion 30 and the fixing portion 10 will increase, so as to facilitate the wire harness 60 to be more easily clamped into the limiting space 40. And when the number of wire harnesses 60 is too large or their specifications are large, the bending portion 30 can also provide a pressing force for the wire harness 60 to prevent the wire harness 60 from coming out or shifting.

[0043] See Figures 2 to 3 as shown Figure 2 shows a schematic three-dimensional structure of an embodiment of a wire harness fixing device 1 provided in the present application. Figure 2 ; Figure 3A schematic three-dimensional structure diagram showing the threading of a wire harness 60 of an embodiment of a wire harness fixing device 1 provided by the present application.

[0044] In some embodiments, the locking portions 20 are symmetrically arranged on both sides of the fixing portion 10 along the second direction, such that the locking portions 20 and the fixing portion 10 together form a T-shaped structure.

[0045] In the embodiments of the present application, the T-shaped structure provides a higher support base and improves the stability of the fixing portion 10. Exemplarily, as shown in combination with Figure 3 both sides of the fixing portion 10 form a limiting space 40, so as to facilitate more wire harnesses 60 to pass through this fixing point, thereby providing more possibilities for the layout of the wire harnesses 60.

[0046] Combined with Figure 4 shown, Figure 4 A front view of an embodiment of a wire harness fixing device 1 provided by the present application is shown.

[0047] In some embodiments, the bending portion 30 includes a deformation section 31 and a spring piece 32. One side of the deformation section 31 is connected to the locking portion 20, and the other side is connected to the spring piece 32. Among them, the connection angle between the spring piece 32 and the deformation section 31 is an acute angle.

[0048] In the embodiments of the present application, the spring piece 32 of the bending portion 30 is bent towards the inside of the limiting space 40, such that when the number of wire harnesses 60 in the limiting space 40 is excessive, the spring piece 32 can abut against the internal wire harnesses 60 to prevent the wire harnesses 60 from shifting. Exemplarily, the material of the wire harness fixing device 1 can be hard plastic.

[0049] Among them, the deformation section 31 is arc-shaped, such that it can quickly return to its initial shape after deformation, and the arc shape can also facilitate adapting to wire harnesses 60 of different diameters and shapes.

[0050] In some embodiments, the fixing portion 10 is concavely provided with an arc section 11 on the side facing the bending portion 30 along the second direction.

[0051] In the embodiments of the present application, the side of the fixing portion 10 that forms the limiting space 40 is set to be concave and arc-shaped, which can increase the limiting space 40 without occupying external space and improve space utilization. Exemplarily, the deformation section 30 and the arc section 11 make the limiting space 40 more rounded to further adapt to wire harnesses 60 of different diameters and shapes.

[0052] In some embodiments, the limiting space 40 further includes a rubber pad 41, and the rubber pad 41 is respectively covered on the fixing portion 10, the locking portion 20, and the bending portion 30.

[0053] In the embodiments of the present application, the rubber material has good elasticity and toughness, can absorb vibration and impact. By laying the rubber pad 41, the friction generated by the collision between the wire harness 60 and the fixing part 10, the locking part 20 and the bending part 30 during vibration is reduced.

[0054] See Figures 5 to 7 as shown in Figure 5 FIG. 7 shows a top view of an embodiment of a battery module bracket provided by the present application; Figure 6 FIG. 9 shows a three-dimensional structural schematic diagram of an embodiment of a wire harness connector 51 of a battery module bracket provided by the present application; Figure 7 FIG. 11 shows a three-dimensional structural schematic diagram of an embodiment of a battery module bracket provided by the present application.

[0055] In some embodiments, the present application further provides a battery module bracket, including a frame plate 50 and one or more of the above-mentioned wire harness fixing devices 1, wherein a plurality of wire harness fixing devices 1 are arranged at intervals on the frame plate 50.

[0056] In some embodiments, the frame plate 50 further includes a plurality of wire harness connectors 51. The wire harness connector 51 includes a bolt part 510 and a collar 511 connected to the bolt part 510. The bolt part 510 is fixed on the frame plate 50, and the collar 511 has a wire groove 512 for the wire harness 60 to pass through. Among them, the wire harness fixing device 1 and the wire harness connector 51 are arranged at intervals.

[0057] In the embodiments of the present application, the wire harness fixing device 1 is installed on the outside of the battery module bracket. Thus, through the installation layout of a plurality of wire harness fixing devices 1, the wire harness 60 can be effectively managed and organized, making the layout of the wire harness 60 more orderly. Among them, the wire harness connector 51 is connected by the bolt part 510 and the collar 511, making its connection more stable.

[0058] In some embodiments, the present application further provides a battery pack, including the above-mentioned battery module bracket and a battery module. The battery module bracket covers the outer side of the battery module. Among them, the wire harness 60 passes through the battery module bracket along the battery module and is arranged on the outside of the battery module bracket through the wire harness fixing device 1 and the wire harness connector 51.

[0059] In the embodiments of the present application, in the current wire harness 60 fixing method, part of the wire harness 60 is located in the housing of the battery pack, and part of the wire harness 60 is located in the internal battery module bracket. This method makes it easy to pull the wire harness 60 during the repair of the battery pack, resulting in unstable connection of the wire harness 60. Therefore, through the joint arrangement of the wire harness fixing device 1 and the wire harness connector 51 for the wire harness 60, the layout of all wire harnesses 60 can be placed on the battery module bracket, effectively avoiding the pulling phenomenon of the wire harness 60.

[0060] The above are only the embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall fall within the protection scope of the present utility model.

Claims

1. A wire harness fixing device, characterized in that: include: a fixing portion extending along a first direction; at least one locking portion, one end of the locking portion along the second direction being connected to the fixing portion; A bending portion, wherein the bending portion is connected to the other end of the locking portion and can undergo elastic deformation to rotate clockwise or counterclockwise around the locking portion, wherein the fixing portion, the locking portion and the bending portion enclose a limiting space so that the wiring harness can pass through the limiting space along a third direction.

2. The wire harness fixing device according to claim 1, characterized in that: The locking portions are symmetrically arranged on both sides of the fixing portion along the second direction, so that the locking portions and the fixing portion together form a T-shape.

3. The wire harness fixing device according to claim 1, characterized in that: The bending portion includes a deformation section and a spring sheet, wherein one side of the deformation section is connected to the locking portion, and the other side is connected to the spring sheet, wherein a connection angle between the spring sheet and the deformation section is an acute angle.

4. The wire harness fixing device according to claim 3, characterized in that: The deformation section is in the shape of an arc.

5. The wire harness fixing device according to claim 1, characterized in that: A circular arc segment is concavely formed on one side of the fixing portion along the second direction toward the bending portion.

6. The wire harness fixing device according to claim 1, characterized in that: The limiting space also includes a rubber pad, and the rubber pad is respectively covered on the fixing portion, the locking portion and the bending portion.

7. The wire harness fixing device according to claim 1, characterized in that: The material of the wire harness fixing device is hard plastic.

8. A battery module bracket, characterized in that: The invention comprises a frame plate and one or more wire harness fixing devices according to any one of claims 1 to 7, wherein a plurality of the wire harness fixing devices are arranged at intervals on the frame plate.

9. The battery module bracket according to claim 8, characterized in that: The frame plate also includes a plurality of wire harness connectors, each of which includes a bolt portion and a collar connected to the bolt portion, wherein the bolt portion is fixed to the frame plate, and the collar has a wire groove for passing the wire harness, wherein the wire harness fixing device and the wire harness connector are spaced apart.

10. A battery pack, characterized in that: It comprises the battery module bracket and battery module as described in any one of claims 8 to 9, wherein the battery module bracket cover is arranged on the outer ring side of the battery module, wherein the wiring harness passes through the battery module bracket along the battery module and is arranged on the outer side of the battery module bracket through a wiring harness fixing device and a wiring harness connector.

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