Wire harness fixing assembly, electrical connection device and electrical device

Abstract

The present application provides a wiring harness fixing assembly, including a wiring harness and a fixing assembly. The wiring harness includes a first wiring harness and a second wiring harness. The fixing assembly includes a limiter, a bracket and a fastener. The limiter is provided with a through hole, and the wiring harness passes through the through hole. The wiring harness is partially arranged on the first side of the limiter and partially arranged on the second side of the limiter. The bracket is arranged on the first side of the limiter, and the bracket includes a first extension portion and a second extension portion arranged opposite to each other, and a connecting portion, the connecting portion passes through the wiring harness, the connecting portion is located between the first wiring harness and the second wiring harness, and the first extension portion and the second extension portion are connected to the limiter. The fastener is arranged on a side of the bracket away from the limiter, and the fastener fixes the first wiring harness and the second wiring harness. The present application also provides an electrical connection device and an electrical device including the above-mentioned wiring harness fixing assembly. The present application can limit the wiring harness from being pulled out during installation, disassembly and transportation, and reduce damage to the internal components of the electrical connection device and the wiring harness.

Description

Technical Field

[0001] The present application relates to the field of electrochemistry, and in particular to a wiring harness fixing assembly, an electrical connection device and an electrical device. Background Art

[0002] Some current electrical devices include two or more battery packs, which are connected in series via wiring harnesses. During the installation, removal, and transportation of the battery packs, the wiring harnesses may be pulled or lifted, which may easily cause the wiring harnesses to be pulled out and damage the battery packs. Summary of the invention

[0003] In order to improve the problems of the above-mentioned prior art, the present application provides a wiring harness fixing assembly, an electrical connection device and an electrical device which can reduce damage when subjected to force.

[0004] One aspect of the present application provides a wire harness fixing assembly, including a wire harness and a fixing assembly. The wire harness includes a first wire harness and a second wire harness. The fixing assembly includes a limiter, a bracket and a fastener. The limiter is provided with a through hole, the wire harness passes through the through hole, the wire harness portion is arranged on the first side of the limiter, and the wire harness portion is arranged on the second side of the limiter. The bracket is arranged on the first side of the limiter, the bracket includes a first extension portion and a second extension portion arranged opposite to each other, and a connecting portion connected between the first extension portion and the second extension portion, the connecting portion passes through the wire harness, the connecting portion is located between the first wire harness and the second wire harness, and the first extension portion and the second extension portion are connected to the limiter. The fastener is arranged on a side of the bracket away from the limiter, and the fastener fixes the first wire harness and the second wire harness.

[0005] In the above embodiment, the fixing assembly fixes the wire harness and the housing to limit the external force on the wire harness and reduce the damage to the wire harness. For example, it can better limit the user from pulling the wire harness from the outside of the housing and reduce the damage to the components caused by pulling the wire harness. Furthermore, it can reduce the damage to the internal components and wire harness of the electrical connection device.

[0006] In some embodiments of the present application, the wiring harness fixing assembly also includes an insulating member, which passes through the through hole and is connected to the limit member at the through hole, and the insulating member includes a first part arranged on a first side of the limit member, a second part arranged on a second side of the limit member and a third part arranged on the through hole, and the first side and the second side are arranged relative to each other.

[0007] In some embodiments of the present application, the outer diameter of the first portion is smaller than the diameter of the through hole, and the outer diameter of the second portion is larger than the diameter of the through hole, so as to limit the second portion from passing through the through hole. In some embodiments of the present application, a first recess is provided on the outer side of the third portion of the insulating member, and the limiting member is at least partially located at the first recess.

[0008] In the above embodiment, the first part can pass through the through hole from the first side of the stopper and then be arranged on the second side of the stopper, while the second part cannot pass through the through hole, which helps to position and fix the wire harness fixing device. Furthermore, a first recess is provided in the third part, and the stopper and the insulating member are tightly fixed.

[0009] In some embodiments of the present application, the insulating member includes a first insulating member and a second insulating member connected to each other, and the first insulating member and the second insulating member jointly surround the wiring harness.

[0010] In some embodiments of the present application, the first insulating member and the second insulating member are fixed along a first direction, the first insulating member includes a convex portion arranged along both ends of the first concave portion toward the second insulating member, and the second insulating member is provided with a second concave portion adapted to the convex portion.

[0011] In some embodiments of the present application, the first extension portion and the second extension portion are respectively located on an outer side of the insulating member away from the wiring harness.

[0012] In some embodiments of the present application, the first extension portion and the second extension portion may be in contact and connected to the limiting member, which is beneficial for transmitting the force exerted on the connecting portion to the limiting member.

[0013] In some embodiments of the present application, the limiting member includes a recessed portion, and the first extending portion and the second extending portion are disposed in the recessed portion.

[0014] In the above embodiment, the recessed portion provided on the limiting member can effectively reduce the movement of the first extension portion and the second extension portion on the surface of the limiting member when a force is applied, and has good stability.

[0015] In some embodiments of the present application, the yield strength of the bracket is greater than 52 MPa.

[0016] In some embodiments of the present application, the wire harness fixing assembly further includes adhesive tape, and the adhesive tape respectively covers the periphery of the first wire harness and the second wire harness.

[0017] In some embodiments of the present application, the wire harness fixing assembly further includes a sleeve, which is disposed on the outside of the wire harness and is located on a side of the bracket away from the fastener.

[0018] In the above embodiment, by providing the sleeve, the wire harness can be kept gathered and tightened on the side of the connecting portion adjacent to the limiting member.

[0019] In some embodiments of the present application, the number of wires included in the first wiring harness and the number of wires included in the second wiring harness may be equal.

[0020] In the above embodiment, an equal number of wires are provided for the first wire harness and the second wire harness, which is beneficial for the first wire harness and the second wire harness to receive a more uniform force.

[0021] One aspect of the present application provides an electrical connection device, which includes a shell and a component arranged in the shell. The electrical connection device adopts the above-mentioned wire harness fixing component, the fixing component is arranged in the shell, one end of the wire harness is connected to the component, and the other end of the wire harness extends out of the shell.

[0022] In some embodiments of the present application, the electrical connection device includes a battery pack, the assembly includes a battery module and a circuit board, and one end of the wiring harness is connected to the circuit board.

[0023] In some embodiments of the present application, the limiting member is detachably provided on the shell, or the limiting member and the shell are integrally formed.

[0024] One aspect of the present application provides an electrical device, comprising the above-mentioned electrical connection device.

[0025] In the wire harness fixing assembly of the present application, the bracket passes through the wire harness to share the force on the wire harness, and the fastener tightens the wire harness on the side of the bracket away from the limiter. The wire harness is not easily pulled out by external force, which can reduce damage to the wire harness. For the electrical connection device using the wire harness fixing assembly, it can reduce damage to components such as circuit boards and battery modules. The electrical connection device and electrical device of the present application use the above-mentioned wire harness fixing assembly, so it can better reduce damage during installation, disassembly and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 and Figure 2 is a three-dimensional schematic diagram of an embodiment of a wire harness fixing assembly of the present application, wherein the wire harness fixing assembly is applied to a battery pack;

[0027] Figure 3 and Figure 4 yes Figure 1 A partial three-dimensional schematic diagram of a wiring harness fixing assembly shown in , wherein the wiring harness fixing assembly includes an insulating member;

[0028] Figure 5 yes Figure 4 A partially exploded perspective schematic diagram of a wiring harness fixing assembly shown in FIG.

[0029] Figure 6 yes Figure 4 A partial cross-sectional schematic diagram of the wiring harness fixing assembly shown in ;

[0030] Figure 7 yes Figure 4 A three-dimensional schematic diagram of the insulating part. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0032] In the description of the present application, it should be noted that, unless otherwise clearly specified or limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. The disclosure of the present application provides many different implementations or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, only the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may reuse reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplifying and clearly describing the present invention, and it does not itself indicate a specific relationship between the various implementations and / or settings discussed.

[0033] See also Figure 1 and Figure 2 , is a three-dimensional schematic diagram of a wire harness fixing assembly 100 in different orientations according to an embodiment of the present application, wherein the wire harness fixing assembly 100 includes a fixing assembly 10 and a wire harness 20. The wire harness fixing assembly 100 is provided in an electrical connection device, and the electrical connection device includes a housing 101, wherein the wire harness 20 passes through the housing 101, wherein a portion of the wire harness 20 is provided on one side of the housing 101, and a portion of the wire harness 20 is provided on the other side opposite to the housing 101. The fixing assembly 10 fixes the wire harness 20 and the housing 101, limits the external force applied to the wire harness 20, and reduces damage to the wire harness 20. For example, the user is limited from pulling the wire harness 20 from the outside of the housing 101.

[0034] In this embodiment, the wire harness fixing assembly 100 is applied to a battery pack 1 .

[0035] Please also read Figure 3 and Figure 4 is a partial three-dimensional schematic diagram of the wiring harness fixing assembly 100. Figure 5 , is a partially exploded three-dimensional schematic diagram of the wire harness fixing assembly 100. The fixing assembly 10 includes a stopper 11, a bracket 12 and a fastener 13. For the convenience of description, as shown in the accompanying drawings, the wire harness fixing assembly 100 is defined to have a width direction along the X direction, a length direction along the Y direction and a height direction along the Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other.

[0036] The stopper 11 is provided with a through hole 102. The wire harness 20 passes through the through hole, part of the wire harness 20 is located on a first side of the stopper 11, and part of the wire harness 20 is located on a second side of the stopper 11, and the first side and the second side are relatively arranged on both sides of the stopper 11 along the Y direction.

[0037] Optionally, in some embodiments, the limiter 11 may be a part of the housing of the battery pack 1 or the limiter 11 may be provided on the housing 101 of the battery pack 1, for example, the limiter 11 is fixed to the housing 101 of the battery pack 1 by screws or the like. The first side of the limiter 11 is, for example but not limited to, the inner side of the battery pack 1, and the second side of the limiter 11 is, for example but not limited to, the outer side of the battery pack 2.

[0038] The bracket 12 includes a first extension portion 121 and a second extension portion 122 that are arranged opposite to each other, and a connecting portion 123 connected between the first extension portion 121 and the second extension portion 122. The connecting portion 123 passes through the wiring harness 20. Optionally, in some embodiments, the wiring harness 20 includes a first wiring harness 21 and a second wiring harness 22, and the connecting portion 123 is located between the first wiring harness 21 and the second wiring harness 22. The first extension portion 121 and the second extension portion 122 can be connected to the limit member 11. Optionally, the first extension portion 121 and the second extension portion 122 can be contact-connected to the limit member 11. Optionally, the limit member 11 includes a recess (not shown), and the first extension portion 121 and the second extension portion 122 are provided in the recess. Figure 4 and Figure 5As shown, the connecting portion 123 can pass through the wiring harness 20 along the Z direction, so that the first wiring harness 21 and the second wiring harness 22 are located on both sides of the connecting portion 123. The first extension portion 121 can be bent and extended to the stopper 11, and the second extension portion 122 can be bent and extended to the stopper 11. In the embodiment of the present application, the bracket 12 is arranged on the first side of the stopper 11. In this embodiment, the number of wires included in the first wiring harness 21 and the number of wires included in the second wiring harness 22 can be the same, which is conducive to the first wiring harness 21 and the second wiring harness 22 receiving the force more uniformly. The first wiring harness 21 and the second wiring harness 22 can be connected to the same other electrical connectors, for example, the first wiring harness 21 and the second wiring harness 22 are connected to the same connector. The first wiring harness 21 and the second wiring harness 22 can be connected to different other electrical connectors, for example, the first wiring harness 21 is connected to the circuit board, and the first wiring harness 21 is connected to other parts of the battery pack 1, without limitation.

[0039] The first extension portion 121 and the second extension portion 122 can be arranged relatively to each other roughly along the Z direction, but this is not limited in the present application. The first extension portion 121 and the second extension portion 122 extend from both ends of the connecting portion 123 and are connected to the limiter 11 respectively. In other or modified embodiments of the present application, the extension direction of the first extension portion 121 and / or the second extension portion 122 can be any direction in space, and the positions of the two can also be differently arranged. The first extension portion 121 is arranged outside the wiring harness 20, and the second extension portion 122 is arranged outside the wiring harness 20, which is conducive to further transmitting the force acting on the wiring harness 20 to the limiter 11.

[0040] In the embodiment of the present application, the bracket 12 may have a U-shaped structure, and the yield strength of the bracket 12 may be greater than 52 megapascals (MPa), and the bracket 12 may be able to withstand a large force.

[0041] In the Y direction, the fastener 13 is arranged on a side of the bracket 12 away from the stopper 11. The fastener 13 can be used to fix the first wire harness 21 and the second wire harness 22. The fastener 13 and the insulating member 14 are arranged on two opposite sides of the connecting portion 123 in the Y direction. Optionally, in some embodiments, the fastener 13 is, for example but not limited to, a cable tie, an adhesive tape, an elastic fastener, etc.

[0042] In the embodiment of the present application, the wire harness fixing assembly 100 may further include an insulating member 14, and the insulating member 14 may pass through the through hole 102 of the stopper 11 and be connected to the stopper 11 at the through hole 102. Figure 6, is a partial cross-sectional schematic diagram of the wire harness fixing assembly 100, and the cross section may be a cross section parallel to the XY plane. The insulating member 14 may be divided into a first portion 141, a second portion 142, and a third portion 143. The first portion 141 is disposed on a first side of the stopper 11, the second portion 142 is disposed on a second side of the stopper 11, and the third portion 143 is disposed at a through hole of the stopper 11.

[0043] Optionally, in some embodiments, the outer diameter of the first portion 141 is smaller than the aperture of the through hole 102. The first portion 141 is disposed on the first side of the limiting member 11 after passing through the through hole 102 from the second side of the limiting member 11. The outer diameter of the second portion 142 is larger than the aperture of the through hole 102 to limit the second portion 142 from passing through the through hole 102. A first recess 1431 is disposed on the outer side of the third portion 143, and the limiting member 11 is at least partially located at the first recess 1431. Furthermore, the insulating member 14 and the limiting member 11 may be interference-connected at the through hole 102. Please refer to Figure 5 and Figure 7 The insulating member 14 may include a first insulating member 1401 and a second insulating member 1402, and the first insulating member 1401 and the second insulating member 1402 jointly surround the wiring harness 20. In the embodiment of the present application, the first insulating member 1401 and the second insulating member 1402 are arranged along a first direction (the first direction is substantially parallel to Figure 5 The first insulating member 1401 includes protrusions 1405 arranged along both ends of the first recess 1431 of the third portion 143 toward the second insulating member 1402, and the second insulating member 1402 may be provided with a second recess 1403 adapted to the protrusion 1405, and the first insulating member 1401 and the second insulating member 1402 may be fixed by the protrusion 1405 and the second recess 1403. During assembly, the insulating member 14 may preliminarily fix the wiring harness 20, and then when assembling from the second side of the limit member 11 to the first side, the limit member 11 applies pressure to the insulating member 14, so that the first insulating member 1401 and the second insulating member 1402 further compress the wiring harness 20. It should be noted that the above is only a possible embodiment structure of the first part 141, the second part 142 and the third part 143, and the present application is not limited to this.

[0044] Specifically, when the wire harness 20 is subjected to the pulling force from the second side of the limiter 11, the connecting portion 123 is subjected to the force from the first wire harness 21 and the second wire harness 22, and the force is transmitted to the first extension portion 121 and the second extension portion 122 through the connecting portion 123, thereby applying the force to the limiter 11. The wire harness 20 is surrounded and compressed by the insulating member 14, and the insulating member 14 is also subjected to the force from the wire harness 20. The bracket 12 and the fastener 13 transmit the force exerted on the wire harness 20 to the limiter 11, thereby reducing the force exerted on the wire harness 20 and reducing the damage to the wire harness 20. Furthermore, the damage to the internal components of the electrical connection device and the wire harness is reduced.

[0045] Optionally, in some embodiments, the wire harness fixing assembly 100 further includes adhesive tape 23, and the adhesive tape 23 respectively covers the periphery of the first wire harness 21 and the second wire harness 22 to protect the first wire harness 21 and the second wire harness 22 and facilitate installation. Further, the first wire harness 21 and the second wire harness 22 may include one or more wires.

[0046] Optionally, in some embodiments, the wiring harness fixing assembly further includes a sleeve 24, which is wrapped around the outside of the wiring harness 20 and located on the side of the bracket 12 away from the fastener 13, so that the wiring harness 20 remains gathered and tightened on the side of the connecting portion 123 adjacent to the limit member 11.

[0047] In the present application, the bracket 12 passes through the wire harness 20 to share the force on the wire harness 20, and the fastener 13 tightens the wire harness 20 on the side of the bracket 12 away from the stopper 11. The wire harness 20 is not easily pulled out by external force, which can effectively reduce the damage to components such as circuit boards and battery modules in the battery pack. During the installation, disassembly and transportation of the battery pack 1, the battery pack 1 can be less damaged.

[0048] Please refer again Figure 1 and Figure 2 The present application also provides a battery pack 1, which includes a battery module 50, a circuit board 60 and a shell 101. The battery module 50 and the circuit board 60 are arranged in the shell 101. The battery pack 1 adopts the wire harness fixing assembly 100, and the fixing assembly 10 is arranged in the shell 101. One end of the wire harness 20 is connected to the circuit board 60, and the other end of the wire harness 20 extends out of the outside of the shell 101. Optionally, in some embodiments, the limiter 11 is detachably provided on the shell. Optionally, in some embodiments, the limiter 11 is integrally formed with the shell. This application is not limited to this.

[0049] The present application also provides an electric device, which includes the battery pack 1. The electric device may include, but is not limited to, a drone, an electric tool, an energy storage device, an electric bicycle, an electric car, and the like.

[0050] Although the present application has been shown and described with respect to one or more implementations, those skilled in the art will think of equivalent variations and modifications based on the reading and understanding of this specification and the accompanying drawings. The present application includes all such modifications and variations, and is limited only by the scope of the appended claims. In particular, with respect to the various functions performed by the above-mentioned components, the terms used to describe such components are intended to correspond to any component (unless otherwise indicated) that performs the specified function of the component (e.g., it is functionally equivalent), even if the structure is not equivalent to the disclosed structure of the function in the exemplary implementation of the present specification shown in this specification. In addition, although the specific features of this specification have been disclosed with respect to only one of several implementations, such features can be combined with one or more other features of other implementations that may be desirable and advantageous for a given or specific application. Further, it should be understood that the "multiple" mentioned in this article refers to two or more. For the steps mentioned in this article, the numerical suffix is ​​only used to clearly describe the embodiment, which is easy to understand and does not fully represent the order of execution of the steps, and should be thought of in terms of the order of logical relationships.

[0051] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structural or equivalent process transformations made using the contents of the specification and drawings of the present application, such as the mutual combination of technical features between the embodiments, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A wire harness fixing assembly, comprising a wire harness and a fixing assembly, wherein the wire harness comprises a first wire harness and a second wire harness, characterized in that: The fixing assembly comprises: A stopper, wherein the stopper is provided with a through hole, the wire harness passes through the through hole, the wire harness portion is provided on a first side of the stopper, and the wire harness portion is provided on a second side of the stopper; a bracket, arranged at a first side of the stopper, the bracket comprising a first extension portion and a second extension portion arranged opposite to each other, and a connecting portion connected between the first extension portion and the second extension portion, the connecting portion passing through the wire harness, the connecting portion being located between the first wire harness and the second wire harness, the first extension portion and the second extension portion being connected to the stopper; A fastener is arranged on a side of the bracket away from the limiting member, and the fastener fixes the first wire harness and the second wire harness.

2. The wire harness fixing assembly according to claim 1, characterized in that: The wiring harness fixing assembly also includes an insulating member, which passes through the through hole and is connected to the limiting member at the through hole. The insulating member includes a first part arranged on a first side of the limiting member, a second part arranged on a second side of the limiting member and a third part arranged on the through hole, and the first side and the second side are arranged opposite to each other.

3. The wire harness fixing assembly according to claim 2, characterized in that: The outer diameter of the first portion is smaller than the diameter of the through hole, and the outer diameter of the second portion is larger than the diameter of the through hole.

4. The wire harness fixing assembly according to claim 2, characterized in that: A first recess is disposed outside the third portion of the insulating member, and the limiting member is at least partially located in the first recess.

5. The wire harness fixing assembly according to claim 2, characterized in that: The insulation member includes a first insulation member component and a second insulation member component connected to each other, and the first insulation member component and the second insulation member component jointly surround the wiring harness.

6. The wire harness fixing assembly according to claim 5, characterized in that: The first insulating member and the second insulating member are fixed along a first direction, the first insulating member includes convex portions arranged along two ends of the first concave portion toward the second insulating member, and the second insulating member is provided with a second concave portion adapted to the convex portion.

7. The wire harness fixing assembly according to any one of claims 2 to 6, characterized in that: The first extension portion and the second extension portion are respectively located at an outer side of the insulating member away from the wire harness.

8. The wire harness fixing assembly according to any one of claims 1 to 6, characterized in that: The yield strength of the bracket is greater than 52Mpa.

9. An electrical connection device, comprising a housing and a component disposed in the housing, characterized in that: The electrical connection device adopts the wire harness fixing assembly as described in any one of claims 1 to 8, the fixing assembly is arranged on the shell, one end of the wire harness is connected to the assembly, and the other end of the wire harness extends out of the shell.

10. The electrical connection device according to claim 9, characterized in that: The limiting member is detachably arranged on the shell, or the limiting member and the shell are integrally formed.

11. The electrical connection device according to claim 10, characterized in that: The electrical connection device includes a battery pack, the assembly includes a battery module and a circuit board, and one end of the wiring harness is connected to the circuit board.

12. An electrical device, characterized in that: Comprising the electrical connection device as claimed in any one of claims 9 to 11.

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