Multi-opening plastic support with arc structure

By designing a multi-opening plastic bracket with an arc structure, the problem of unreliable wire harness fixing was solved, vibration stress was dispersed and stable connection was achieved, and assembly adaptability and service life were improved.

CN224447706UActive Publication Date: 2026-07-03SHANGHAI JINTING AUTOMOBILE HARNESS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI JINTING AUTOMOBILE HARNESS
Filing Date
2025-08-14
Publication Date
2026-07-03

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  • Figure CN224447706U_ABST
    Figure CN224447706U_ABST
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Abstract

This utility model provides a multi-opening plastic bracket with an arc-shaped structure, including a bracket body. The bracket body includes a base plate with an extension plate extending to the right. A left side plate and a right side plate are respectively installed on both sides of the base plate. The right side plate has a notch and is arranged along both sides of the extension plate, forming a cable outlet with the extension plate. The base plate has an arc-shaped structure, and a protrusion is provided at the upper end of the base plate, which is inclined downward through the protrusion. A positioning boss is connected to the outer side of the left side plate. The positioning boss is an L-shaped plate bent downward. A reinforcing plate is connected to the outer side of the right side plate. Support plates are provided on both sides of the reinforcing plate and are connected to the right side plate. A positioning hole is provided at the end of the reinforcing plate. This utility model, by adopting a curved surface structure that integrates arc and straight plate, fits the mounting surface around the engine, effectively dispersing the vibration and external forces generated by engine operation and vehicle movement, and maintaining the stability of the bracket and related components.
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Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harnesses, specifically to a multi-opening plastic bracket with an arc-shaped structure. Background Technology

[0002] The rapid development of automotive electrification and intelligence has led to a dramatic increase in the length, weight, and complexity of in-vehicle wiring harnesses. These "nerves" carrying electricity and signals must traverse the harsh environment of the vehicle body, enduring continuous vibration and impact, extreme temperature changes, oil and moisture, and potential physical wear. Early simple binding or fixing methods using gaps in the vehicle body had significant drawbacks: unreliable fixing easily led to wiring harness loosening, rattling noises, and even short circuits due to wear; lack of effective protection made the wiring harness susceptible to environmental corrosion and mechanical damage; and messy wiring affected assembly efficiency and safety. Therefore, vehicle body wiring harness brackets emerged as an engineered solution. Their core function is to provide precise and secure fixing of the wiring harness, act as a key physical protective barrier, and optimize the wiring path. In terms of materials, there has been a complete shift from metals that are easily corroded and damaged, to engineering plastics (such as reinforced PA66 and PP)—which offer advantages such as lightweight, corrosion resistance, good insulation, flexible design, and injection molding mass production. In the automotive manufacturing process, the wiring harness, as the nerve center of the electronic system, directly affects the stability of the entire vehicle's electronic system due to the performance of its fixing bracket. Utility Model Content

[0003] In view of the problems existing in the prior art, this utility model provides a multi-opening plastic bracket with an arc structure to solve at least one of the above-mentioned technical problems.

[0004] The technical solution of this utility model is: a multi-opening plastic bracket with an arc-shaped structure, comprising a bracket body, characterized in that the bracket body includes a base plate, the base plate is provided with an extension plate extending to the right, a left side plate and a right side plate are respectively installed on both sides of the base plate, the right side plate is provided with a notch, the right side plate is arranged along both sides of the extension plate, the extension plate and the right side plate form a cable outlet, the base plate has an arc-shaped structure, and the upper end of the base plate is provided with a protruding structure, the upper end of the base plate is inclined downward through the protruding structure;

[0005] A positioning boss is connected to the outer side of the left side plate. The positioning boss is an L-shaped plate that bends downward. A reinforcing plate is connected to the outer side of the right side plate. Support plates are provided on both sides of the reinforcing plate. The support plates are connected to the right side plate. A positioning hole is provided at the end of the reinforcing plate.

[0006] This utility model employs a curved surface structure that integrates arc and straight plate shapes, conforming to the mounting surface around the engine. This effectively disperses vibrations and external forces generated during engine operation and vehicle movement, maintaining the stability of the bracket and related components and preventing displacement and interference. The addition of raised structures in certain areas strengthens key stress points, dispersing stresses generated by high-frequency engine vibration and thermal expansion and contraction. This prevents the bracket from cracking or deforming due to long-term alternating stress, extending its service life and ensuring stable engine system operation. Standardized pre-drilled holes accommodate commonly used engine compartment bolts / screws, facilitating fixation to the engine block, bracket base, etc., and allowing for flexible adjustment of the installation posture to meet the installation requirements of different vehicle models and engine layouts, improving assembly adaptability and reliability.

[0007] Further preferably, the bottom of the positioning boss is provided with a U-shaped groove with an opening facing downwards.

[0008] The U-shaped groove allows for better positioning and engagement with the engine's surroundings.

[0009] In a further preferred embodiment, the lower end of the base plate is connected to a downwardly inclined flap, and the end of the flap is provided with a limiting protrusion, which forms a groove with the end of the base plate.

[0010] The cable trays facilitate the securing of cables after they emerge, increasing the storage space for the cable harness.

[0011] Further preferably, the positioning boss and the reinforcing plate are close to the protruding structure, and the reinforcing plate is located between the extension plate and the protruding structure.

[0012] This invention optimizes the structure of the bracket for precise engagement and nesting with engine peripheral components (such as pipe brackets, sensor brackets, etc.), enabling rapid assembly and a firm connection that can resist the risk of loosening caused by engine vibration and ensure the integrity of the system connection.

[0013] Further preferably, the base plate and the extension plate are respectively provided with cable tie holes.

[0014] Cable tie holes are used to thread cable ties through the wire harness to ensure that the wire harness fits tightly against the bracket slot, preventing the wire harness from bulging out and interfering with other layouts inside the vehicle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the planar structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0018] In the diagram: 1 is the base plate; 2 is the right side plate; 3 is the left side plate; 4 is the extension plate; 5 is the raised structure; 6 is the positioning hole; 7 is the positioning boss; 8 is the cable tie hole; 9 is the U-shaped groove; 10 is the flip plate. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Reference Figures 1-3 As shown, a multi-opening plastic bracket with an arc-shaped structure includes a bracket body. The bracket body includes a base plate 1, on which an extension plate 4 extending to the right is provided. A left side plate 3 and a right side plate 2 are respectively installed on both sides of the base plate. The right side plate has a notch and is arranged along both sides of the extension plate. The extension plate and the right side plate form a cable outlet. The base plate has an arc-shaped structure, and a protrusion structure 5 is provided at the upper end of the base plate. The upper end of the base plate is inclined downward through the protrusion structure. A positioning boss 7 is connected to the outer side of the left side plate. The positioning boss is an L-shaped plate that bends downward. A reinforcing plate is connected to the outer side of the right side plate. Support plates are provided on both sides of the reinforcing plate. The support plates are connected to the right side plate. A positioning hole 6 is opened at the end of the reinforcing plate.

[0021] This utility model employs a curved surface structure that integrates arc and straight plate shapes, conforming to the mounting surface around the engine. This effectively disperses vibrations and external forces generated during engine operation and vehicle movement, maintaining the stability of the bracket and related components and preventing displacement and interference. The addition of raised structures in certain areas strengthens key stress points, dispersing stresses generated by high-frequency engine vibration and thermal expansion and contraction. This prevents the bracket from cracking or deforming due to long-term alternating stress, extending its service life and ensuring stable engine system operation. Standardized pre-drilled holes accommodate commonly used engine compartment bolts / screws, facilitating fixation to the engine block, bracket base, etc., and allowing for flexible adjustment of the installation posture to meet the installation requirements of different vehicle models and engine layouts, improving assembly adaptability and reliability.

[0022] Further optimized, the bottom of the positioning boss is provided with a downward-facing U-shaped groove 9. The U-shaped groove allows for better positioning and engagement with the engine's surroundings.

[0023] In a further preferred embodiment, a downwardly tilted flap 10 is connected to the lower end of the base plate. The end of the flap has a limiting protrusion, which forms a groove with the end of the base plate. The groove facilitates the fixing of the wire after it exits the circuit, increasing the space for accommodating the wire harness.

[0024] Further optimized, the positioning boss and the reinforcing plate are close to the raised structure, and the reinforcing plate is located between the extension plate and the raised structure. This utility model optimizes the structure of the bracket for precise engagement and nesting with engine peripheral components (such as pipe brackets, sensor brackets, etc.), enabling rapid assembly and a firm connection that can resist the risk of loosening caused by engine vibration and ensure the integrity of the system connection.

[0025] Further optimized, cable tie holes 8 are provided on both the base plate and the extension plate. The cable tie holes are used to thread cable ties through, so that the wire harness fits tightly against the bracket groove, preventing the wire harness from protruding and interfering with other layouts inside the vehicle.

[0026] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A multi-opening plastic holder with an arc structure, comprising a holder main body, characterized in that, The main body of the bracket includes a base plate, on which an extension plate extending to the right is provided. A left side plate and a right side plate are respectively installed on both sides of the base plate. A notch is provided on the right side plate. The right side plate is arranged along both sides of the extension plate. The extension plate and the right side plate form a cable outlet. The base plate has an arc-shaped structure, and a protruding structure is provided at the upper end of the base plate. The upper end of the base plate is inclined downward through the protruding structure. A positioning boss is connected to the outer side of the left side plate. The positioning boss is an L-shaped plate that bends downward. A reinforcing plate is connected to the outer side of the right side plate. Support plates are provided on both sides of the reinforcing plate. The support plates are connected to the right side plate. A positioning hole is provided at the end of the reinforcing plate.

2. The multi-opening plastic support with an arc structure according to claim 1, wherein, The bottom of the positioning boss is provided with a U-shaped groove that opens downwards.

3. The multi-opening plastic support with an arc structure according to claim 1, wherein, The lower end of the base plate is connected to a downwardly tilted flap, and the end of the flap is provided with a limiting protrusion, which forms a groove with the end of the base plate.

4. The multi-opening plastic support with an arc structure according to claim 1, wherein, The positioning boss and the reinforcing plate are close to the protruding structure, and the reinforcing plate is located between the extension plate and the protruding structure.

5. The multi-opening plastic support with an arc structure according to claim 1, wherein, Cable tie holes are provided on the base plate and the extension plate respectively.