Anti-rotation bracket

Abstract

The utility model discloses a kind of anti-rotation supports, comprising: substrate, substrate includes oppositely arranged first surface and second surface;Positioning structure, positioning structure is located in first surface, and positioning structure is used to fix wiring harness;Anti-rotation structure, anti-rotation structure is located in second surface, and anti-rotation structure at least includes first anti-rotation member and second anti-rotation member, and there is preset included angle between the setting direction of first anti-rotation member and second anti-rotation member.The utility model utilizes first surface to set positioning structure to fix wiring harness on substrate, then by setting first anti-rotation member and second anti-rotation member with preset included angle distribution on second surface, when anti-rotation support is subjected to composite torque from turning, jolt or sustained vibration, first anti-rotation member and second anti-rotation member can limit anti-rotation support to occur rotational displacement in different directions, and then reduce the occurrence of wiring harness distortion, wear and breakage, to improve the stability of anti-rotation support, to meet the requirement of electronic parking system to wiring harness fixing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of wire harness fixing technology, and in particular to an anti-rotation bracket. Background Technology

[0002] With the acceleration of automotive electrification, electronic parking brake (EPB) systems are gradually replacing traditional mechanical handbrakes. This system achieves precise parking by driving calipers with a motor. The electronic parking brake wiring harness needs to connect the control unit, sensors and actuators, and undertake the functions of signal transmission and power supply.

[0003] Existing electronic parking harness brackets mostly use single-point fixing or simple snap-fit ​​structures. However, under long-term vehicle vibration, steering, or bumpy conditions, the brackets are prone to rotation and displacement, leading to harness twisting, wear, or even breakage, affecting the reliability of the parking function. Traditional anti-rotation solutions (such as irregular holes and single-sided limiting ribs) have problems such as insufficient anti-rotation stability and poor installation adaptability, and cannot meet the high requirements of electronic parking systems for harness fixing precision. Utility Model Content

[0004] The purpose of this invention is to provide an anti-rotation bracket to solve the problems of insufficient anti-rotation stability and poor installation adaptability of traditional anti-rotation schemes, and to improve the accuracy of wire harness fixing.

[0005] This utility model provides an anti-rotation bracket, comprising: A substrate, the substrate including a first surface and a second surface disposed opposite to each other; A positioning structure is disposed on the first surface and is used to fix the wire harness. An anti-rotation structure is provided on the second surface. The anti-rotation structure includes at least a first anti-rotation component and a second anti-rotation component, and the first anti-rotation component and the second anti-rotation component have a preset angle between their respective orientations.

[0006] In the anti-rotation bracket described above, preferably, the first anti-rotation member is a first protrusion disposed on the second surface, the first protrusion extending along a first direction, and the second anti-rotation member is a second protrusion disposed on the second surface, the second protrusion extending along a second direction, and the first direction and the second direction have the preset included angle.

[0007] In the anti-rotation bracket described above, preferably, the cross-sections of the first protrusion and the second protrusion are both rectangular.

[0008] In the anti-rotation bracket described above, preferably, both the first anti-rotation member and the second anti-rotation member have elastic portions, which are disposed at the connection between the first anti-rotation member and / or the second anti-rotation member and the second surface.

[0009] In the anti-rotation bracket described above, preferably, both the first anti-rotation member and the second anti-rotation member have guide portions at their ends.

[0010] In the anti-rotation bracket described above, preferably, both the first anti-rotation component and the second anti-rotation component are provided with limiting portions.

[0011] In the anti-rotation bracket described above, preferably, both the first anti-rotation component and the second anti-rotation component are provided with anti-slip parts.

[0012] In the anti-rotation bracket described above, preferably, the positioning structure includes an upright part, a connecting part, and a bending part. The upright part is disposed on the first surface, and the two ends of the connecting part are respectively connected to the upright part and the bending part. The wire harness is housed in the bending part.

[0013] In the anti-rotation bracket described above, preferably, the positioning structure further includes a buffer portion, wherein when the wire harness is fixed within the positioning structure, the wire harness is in close contact with the buffer portion.

[0014] In the anti-rotation bracket described above, preferably, a reinforcing member is further provided on the first surface, and the reinforcing member is connected to the positioning structure.

[0015] Compared with the prior art, this utility model utilizes a positioning structure on the first surface to fix the wire harness to the substrate, and then sets a first anti-rotation component and a second anti-rotation component distributed at a preset angle on the second surface. When the anti-rotation bracket is subjected to a combined torque from steering, bumps or continuous vibration, the first anti-rotation component and the second anti-rotation component can restrict the rotational displacement of the anti-rotation bracket in different directions, thereby reducing the occurrence of wire harness twisting, wear and breakage, and thus improving the stability of the anti-rotation bracket to meet the requirements of the electronic parking system for wire harness fixing accuracy. Attached Figure Description

[0016] Figure 1 This is a perspective view of the anti-rotation bracket provided in an embodiment of this utility model.

[0017] Figure 2 This is a rear view of the anti-rotation bracket provided in an embodiment of this utility model.

[0018] Figure 3 This is a side view of the anti-rotation bracket provided in an embodiment of this utility model.

[0019] Figure 4 This is a top view of the anti-rotation bracket provided in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached figures: 10 - Substrate, 11 - First surface, 12 - Second surface; 20 - Positioning structure, 21 - Upright part, 22 - Connecting part, 23 - Bending part; 30-Anti-rotation structure, 31-First anti-rotation component, 311-First protrusion, 32-Second anti-rotation component, 321-Second protrusion, 33-Elastic part; 40 - Reinforcing component; D1 - First direction, D2 - Second direction. Detailed Implementation

[0021] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Reference Figure 1 As shown, this utility model provides an anti-rotation bracket, including a base plate 10, a positioning structure 20, and an anti-rotation structure 30, wherein: The substrate 10 includes a first surface 11 and a second surface 12 disposed opposite to each other. The substrate 10 is the base of the anti-rotation bracket. The electronic parking harness is installed on the side of the substrate 10 facing the first surface 11. The mounting base (such as the body sheet metal, the anti-rotation bracket mounting plate, etc.) is located on the side of the substrate 10 facing the second surface 12, thereby separating the harness fixing side and the body connection side into two surfaces. When the vehicle vibrates, the vibration torque is consumed on the second surface 12 side, making it difficult to transmit to the harness on the first surface 11 side, thereby eliminating the phenomenon of the harness twisting synchronously with the bracket.

[0023] The positioning structure 20 is disposed on the first surface 11. The positioning structure 20 is used to fix the wire harness. The positioning structure 20 can be designed according to the outer diameter, bending radius and direction of the wire harness. After the wire harness is fixed by the positioning structure 20, the wire harness remains stationary relative to the anti-rotation bracket.

[0024] An anti-rotation structure 30 is disposed on the second surface 12. The anti-rotation structure 30 includes at least a first anti-rotation member 31 and a second anti-rotation member 32, and the first anti-rotation member 31 and the second anti-rotation member 32 have a preset included angle between their respective orientations. The mounting base can be provided with anti-rotation holes, anti-rotation grooves, and other structures that are adapted to the shapes of the first anti-rotation member 31 and the second anti-rotation member 32. After the first anti-rotation member 31 and the second anti-rotation member 32 are respectively connected to the mounting base, since the first anti-rotation member 31 and the second anti-rotation member 32 are set at an included angle, when the vehicle vibration generates vibration torque, regardless of the direction of the vibration torque, at least one anti-rotation member can still restrict the rotational freedom of the anti-rotation bracket, so that the anti-rotation bracket cannot accumulate a small amount of rotation, thereby avoiding rotational deviation caused by single-point failure.

[0025] In the embodiments provided in this application, reference is made to Figure 2As shown, the first anti-rotation member 31 is a first protrusion 311 provided on the second surface 12, and the first protrusion 311 extends along the first direction D1. The second anti-rotation member 32 is a second protrusion 321 provided on the second surface 12, and the second protrusion 321 extends along the second direction D2. There is a preset angle between the first direction D1 and the second direction D2.

[0026] The first protrusion 311 and the second protrusion 321 have a large sidewall area, which can provide a long blocking line instantly. Even if the position of the vehicle body feature is slightly deviated, it can ensure that at least a section of the sidewall is in contact with the mounting base, avoiding slippage caused by point contact.

[0027] When the vehicle vibrates, the first protrusion 311 and the second protrusion 321 are simultaneously subjected to vibration torque. Since the extension directions of the first protrusion 311 and the second protrusion 321 have a preset angle, at least one of the anti-rotation components can limit the rotational freedom of the anti-rotation bracket at any time during the vehicle vibration process.

[0028] The first direction D1 and the second direction D2 can be any two directions with an included angle. In this application, the first direction D1 is perpendicular to the substrate 10, and the second direction D2 has an included angle with the second surface 12. In other embodiments, the first direction D1 and the second direction D2 can be set according to the position of the wire harness, which is not limited here.

[0029] In one feasible embodiment, the cross-sections of the first protrusion 311 and the second protrusion 321 are both rectangular. The first protrusion 311 and the second protrusion 321 with rectangular cross-sections form a non-circular fit with the anti-rotation holes or anti-rotation grooves provided in the mounting base, thereby further restricting the rotational freedom of the anti-rotation bracket.

[0030] To facilitate the connection between the anti-rotation bracket and the mounting base, refer to... Figure 2 and Figure 4 As shown, both the first anti-rotation member 31 and the second anti-rotation member 32 have an elastic portion 33, which is located at the connection between the first anti-rotation member 31 and / or the second anti-rotation member 32 and the second surface 12. During assembly, the elastic portion 33 undergoes elastic deformation under the force of the mounting base, accumulating elastic force so that the first anti-rotation member 31 and the second anti-rotation member 32 can fit into the anti-rotation holes or anti-rotation grooves opened on the mounting base. After the first anti-rotation member 31 and the second anti-rotation member 32 are installed, the elastic force accumulated in the elastic portion 33 is applied to the first anti-rotation member 31 and the second anti-rotation member 32, so that the first anti-rotation member 31 and the second anti-rotation member 32 are stably fixed to the mounting base.

[0031] Preferably, the elastic part 33 has a thin-walled structure or an arc-shaped chamfer, so that the root of the first anti-rotation member 31 and the second anti-rotation member 32 forms a structure that can bend and rebound, ensuring that the first anti-rotation member 31 and the second anti-rotation member 32 are easy to install and can be firmly fixed to the mounting base.

[0032] Furthermore, both the first anti-rotation member 31 and the second anti-rotation member 32 are provided with guide portions (not shown) at their ends, so that the first anti-rotation member 31 and the second anti-rotation member 32 can be easily inserted into the anti-rotation hole or anti-rotation groove of the mounting base. The guide portion can be a guide slope provided at the free end of the first anti-rotation member 31 and the second anti-rotation member 32. When inserting the first anti-rotation member 31 and the second anti-rotation member 32, the first anti-rotation member 31 and the second anti-rotation member 32 can be quickly installed under the action of the guide slope.

[0033] During the assembly process, in order to prevent the first anti-rotation component 31 and the second anti-rotation component 32 from being over-inserted, in the embodiments provided in this application, both the first anti-rotation component 31 and the second anti-rotation component 32 are provided with a limiting part (not shown). When the first anti-rotation component 31 and the second anti-rotation component 32 are installed in place, the limiting part can abut against the mounting base to limit the continued insertion of the first anti-rotation component 31 and the second anti-rotation component 32.

[0034] Preferably, the limiting part can be configured as a limiting boss, which is provided on the side wall of the first anti-rotation member 31 and the second anti-rotation member 32. When the first anti-rotation member 31 and the second anti-rotation member 32 are installed in place, the limiting boss presses against the mounting base, so that the first anti-rotation member 31 and the second anti-rotation member 32 cannot continue to move.

[0035] To ensure the stability of the connection between the first anti-rotation component 31 and the second anti-rotation component 32 and the mounting base, both the first anti-rotation component 31 and the second anti-rotation component 32 are provided with anti-slip parts. The anti-slip parts increase the friction between the first anti-rotation component 31 and the second anti-rotation component 32 and the mounting base. During vehicle operation, the increased friction between the anti-slip parts and the first and second anti-rotation components 31 and 32 prevents them from loosening in the opposite direction, thus maintaining a stable connection between the first anti-rotation component 31 and the second anti-rotation component 32 and the mounting base. The anti-slip parts can be configured with anti-slip textures or other structures that increase friction; no limitation is made here.

[0036] In the embodiments provided in this application, reference is made to Figure 3As shown, the positioning structure 20 includes an upright portion 21, a connecting portion 22, and a bent portion 23. The upright portion 21 is disposed on the first surface 11. The two ends of the connecting portion 22 are connected to the upright portion 21 and the bent portion 23, respectively. The wire harness is housed in the bent portion 23. The upright portion 21 is perpendicular to the substrate 10, the connecting portion 22 is perpendicular to the upright portion 21, and the bent portion 23 is wound into a C-shaped open loop. One end of the open loop is connected to the connecting portion 22, and the other end of the open loop is a free end. There is a gap between the free end and the upright portion 21. When installing the wire harness, the wire harness can be pushed into the bent portion 23 through the gap between the free end of the bent portion 23 and the upright portion 21. When the wire harness is installed in place, it is positioned by the combined action of the upright portion 21 and the bent portion 23.

[0037] Furthermore, the positioning structure 20 also includes a buffer portion, which is in close contact with the wire harness when it is fixed inside the positioning structure 20. Buffer portions are provided on the inner side of the upright portion 21, the inner edge of the connecting portion 22, and the inner arc surface of the bent portion 23. After the wire harness is pressed in, the buffer portion undergoes compression deformation, automatically enveloping the outer diameter of the wire harness and eliminating local gaps. Vibration energy is first consumed by the viscoelastic deformation of the buffer portion, converted into heat, and then rapidly dissipated through the thin wall, thereby protecting the wire harness. The buffer portion is preferably a buffer pad (such as a rubber layer), but this is not limited thereto.

[0038] To improve the stability of the positioning structure 20 in fixing the wire harness, refer to Figure 1 , Figure 2 as well as Figure 4 As shown, a reinforcing member 40 is also provided on the first surface 11, and the reinforcing member 40 is connected to the positioning structure 20. The reinforcing member 40 intersects with the upright part 21 to form a triangular support, which changes the positioning structure 20 from a single-column cantilever to a truss structure, thereby improving the fatigue life of the positioning structure 20. The reinforcing member 40 can be set as a reinforcing rib or triangular rib, etc., and is not limited here.

[0039] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. An anti-rotation bracket, characterized in that, include: A substrate, the substrate including a first surface and a second surface disposed opposite to each other; A positioning structure is disposed on the first surface and is used to fix the wire harness. An anti-rotation structure is provided on the second surface. The anti-rotation structure includes at least a first anti-rotation component and a second anti-rotation component, and the first anti-rotation component and the second anti-rotation component have a preset angle between their respective orientations.

2. The anti-rotation bracket according to claim 1, characterized in that, The first anti-rotation component is a first protrusion disposed on the second surface, the first protrusion extending along a first direction; the second anti-rotation component is a second protrusion disposed on the second surface, the second protrusion extending along a second direction; and the first direction and the second direction have the preset included angle.

3. The anti-rotation bracket according to claim 2, characterized in that, Both the first protrusion and the second protrusion have rectangular cross-sections.

4. The anti-rotation bracket according to claim 1, characterized in that, Both the first anti-rotation member and the second anti-rotation member have an elastic portion, which is located at the connection between the first anti-rotation member and / or the second anti-rotation member and the second surface.

5. The anti-rotation bracket according to claim 1, characterized in that, Both the first anti-rotation component and the second anti-rotation component have guide portions at their ends.

6. The anti-rotation bracket according to claim 1, characterized in that, Both the first anti-rotation component and the second anti-rotation component are provided with limiting parts.

7. The anti-rotation bracket according to claim 1, characterized in that, Both the first anti-rotation component and the second anti-rotation component are provided with anti-slip parts.

8. The anti-rotation bracket according to claim 1, characterized in that, The positioning structure includes an upright part, a connecting part, and a curved part. The upright part is disposed on the first surface. The two ends of the connecting part are respectively connected to the upright part and the curved part. The wire harness is housed in the curved part.

9. The anti-rotation bracket according to claim 8, characterized in that, The positioning structure also includes a buffer section, and when the wire harness is fixed in the positioning structure, the wire harness is in close contact with the buffer section.

10. The anti-rotation bracket according to claim 1, characterized in that, The first surface is also provided with a reinforcing member, which is connected to the positioning structure.

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