Restraint device for vehicle wiring harnesses

Abstract

The utility model discloses a kind of restraint device for vehicle wiring harness, including base and restraint piece, mounting portion for being fixed with vehicle body and support portion for supporting wiring harness are equipped on base, restraint piece is used to constrain wiring harness to support portion, mounting portion is fixed to vehicle body rear, support portion is supported in vehicle body;The utility model guarantees simple and compact structure, can form stable support to wiring harness, change the existing cantilever type restraint structure, self stability also has greater improvement, avoid external vibration to cause wiring harness amplitude larger and vehicle body friction or impact to cause the damage of wiring harness, to avoid the security risk and abnormal sound caused thereby, help to eliminate vehicle NVH problem, ensure the comprehensive index of vehicle;And for the present stage that intelligent driving is more and more popular, the utility model helps to avoid driving safety problem.

Description

Technical Field

[0001] This utility model relates to an automotive accessory component, and more particularly to a restraint device for vehicle wiring harnesses. Background Technology

[0002] Wiring harnesses are used to provide power to vehicles, ensuring uninterrupted power supply to all vehicle components. This is especially crucial in new energy vehicles, where wiring harnesses are an indispensable component. Wiring harness restraints are used to bind wiring harnesses with consistent routing to ensure neatness. Because restraining wiring harnesses seems relatively simple, the design of these restraints is often overlooked. Traditionally, the requirement is simply to bundle and restrain the wiring harness, without considering the installation stability of the restraints themselves or their constraint stability and strength on the wiring harness. Existing solutions sometimes use a cantilever beam connection structure between the bundled wiring harness and its mounting location on the vehicle, similar to an eccentric design. This cantilever is not only long but also relatively thin. During vehicle operation, external vibrations are amplified by the cantilever structure, leading to large amplitude vibrations that can cause the wiring harness to rub against or impact the vehicle body, resulting in damage, safety risks, and abnormal noises. Furthermore, with the increasing prevalence of intelligent driving, wiring harness damage can lead to driving safety issues. It also affects NVH (noise, vibration, and harshness) issues, impacting the vehicle's overall performance.

[0003] Therefore, it is necessary to improve the existing wiring harness constraint structure to make it simple and compact, stably constrain the wiring harness, eliminate the abnormal noise and looseness caused by its own structural problems, avoid wear caused by large amplitude of the wiring harness, and ultimately ensure the comprehensive performance indicators such as vehicle safety. Utility Model Content

[0004] In view of this, the present invention provides a constraint device for vehicle wiring harnesses, which has a simple and compact structure, can stably constrain the wiring harness, eliminate the abnormal noise and looseness caused by its own structural problems, avoid wear caused by large amplitude of the wiring harness, and ultimately ensure the comprehensive performance indicators such as vehicle safety.

[0005] The present invention relates to a constraint device for vehicle wiring harnesses, comprising a base and a constraint member. The base is provided with a mounting part for fixing to the vehicle body and a support part for supporting the wiring harness. The constraint member is used to constrain the wiring harness to the support part. After the mounting part is fixed to the vehicle body, the support part is supported on the vehicle body.

[0006] Furthermore, the support portion forms a support surface, and the wire harness is supported on the support surface and constrained on the support surface by a constraint member.

[0007] Furthermore, when constraining the wire harness, the constraint member uses the support portion as a fixed base.

[0008] Furthermore, the constraint member is a constraint band, and a through hole is formed on the support portion. The constraint band passes through the through hole to bind and constrain the wire harness to the support surface.

[0009] Furthermore, the support extends upward to form an auxiliary baffle, which is located on the side of the support surface opposite to the mounting portion.

[0010] Furthermore, the side of the support portion opposite to the mounting portion extends downward to form a support baffle.

[0011] Furthermore, the mounting part is fixed to the vehicle body by a vibration damping component.

[0012] Furthermore, the mounting part includes a mounting part body, a snap-fit ​​connector fixed downward to the mounting part body, and a snap-fit ​​seat that mates with the snap-fit ​​connector. The snap-fit ​​connector passes through a mounting hole opened in the vehicle body and is fixed by the snap-fit ​​seat. The damping member is located between the mounting part body and the vehicle body.

[0013] Furthermore, the mounting body is lowered relative to the support, causing the base to form a stepped structure, and the mounting body and the support are integrally formed through an intermediate connecting part.

[0014] Furthermore, the support part is a columnar structure with a rectangular cross-section, and the mounting part body is a cylinder and is integrally formed on the corresponding side of the support part through an intermediate connecting part.

[0015] The beneficial effects of this utility model are as follows: The constraint device for vehicle wiring harnesses of this utility model adopts an independent support structure to support the wiring harness and uses constraint members to constrain the wiring harness to the support. While ensuring a simple and compact structure, it can provide stable support for the wiring harness. Moreover, the support is supported on the vehicle body, which changes the existing cantilever constraint structure and greatly improves its own stability. It avoids damage to the wiring harness caused by external vibrations due to large amplitude of the wiring harness rubbing or impacting the vehicle body, thereby avoiding the resulting safety risks and abnormal noises. It helps to eliminate vehicle NVH problems and ensure the overall performance of the vehicle. In the current stage where intelligent driving is becoming more and more popular, this utility model helps to avoid driving safety problems. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 A schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0019] Figure 3This is a schematic diagram of the constraint band structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the vibration damping component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of this utility model installed on the vehicle body.

[0022] Reference numerals: 1. Base, 101 Support part, 1011 Support surface, 1012 Support baffle, 1013 Through hole, 1014 Auxiliary baffle, 102 Mounting part, 1021 Mounting part body, 1022 Snap connector, 1023 Snap connector seat, 103. Intermediate connecting part, 1031 Stiffening rib, 2. Constraint, 3. Vibration damping part, 4. Wiring harness, 5. Body. Detailed Implementation

[0023] like Figures 1 to 5 As shown: The constraint device for the vehicle wiring harness 4 in this embodiment includes a base 1 and a constraint member 2. The base 1 is provided with a mounting part 102 for fixing to the vehicle body 5 and a support part 101 for supporting the wiring harness 4. The constraint member 2 is used to constrain the wiring harness 4 to the support part 101. After the mounting part 102 is fixed to the vehicle body 5, the support part 101 is supported on the vehicle body 5. In this structure, since the mounting part 102 is mounted on the vehicle body 5 and the support part 101 is supported on the vehicle body 5, the mounting part 102 and the support part 101 are arranged side by side in the horizontal direction, which will not be described in detail here; the mounting part 102 is fixed. The method of setting the wire harness 4 at the vehicle body 5 (where it passes through) generally adopts existing mechanical connection methods such as snap-fit ​​or screw connection, which will not be described in detail here. In a typical structure, the structure of the support part 101 only needs to be able to support the wire harness 4. It is fixed to the mounting part 102 and constrains the wire harness 4 with the cooperation of the constraint member 2. In this solution, the support part 101 is supported on the vehicle body 5, avoiding the vibration amplification caused by the cantilever structure of the prior art, and forming a stable support structure. The structure of the constraint member 2 only needs to be able to gather the wire harness 4 and place it on the support part 101. It can be a constraint strap or a constraint ring, which will not be described in detail here.

[0024] In this embodiment, as Figure 1 and Figure 2 As shown, the support portion 101 forms a support surface 1011, and the wire harness 4 is supported on the support surface 1011 and constrained on the support surface 1011 by the constraint member 2; the support surface 1011 is the top surface of the support portion 101, and the support surface 1011 can be as follows: Figure 1 and Figure 2The plane shown can also be a concave arc-shaped surface that partially encloses the wire harness 4, which is convenient for constraining the wire harness 4, preventing lateral sliding, and reducing the burden on the constraint member 2. However, the processing is more complex than that of the support surface 1011. Since the force applied to the wire harness 4 is mostly downward pressure, the support surface 1011 of the plane in this embodiment can also form a stable support.

[0025] In this embodiment, when the constraint member 2 constrains the wire harness 4, it uses the support part 101 as a fixed base, such as... Figure 1 and Figure 5 As shown, the wire harness 4 is constrained to the base 1 by the constraint member 2 with the support part 101 as the fixed base. When constraining the wire harness 4, the constraint member 2 forms a fixed position relative to the support part 101, thereby stably constraining the wire harness 4 and avoiding the technical problems existing in the prior art.

[0026] In this embodiment, the constraint member 2 is a constraint strap, which refers to a relatively flexible binding strap. It utilizes adjustable buckles to form a binding, providing good adaptability. The support portion 101 forms a through hole 1013 perpendicular to the direction of the constrained wire harness 4. The constraint strap passes through the through hole 1013 to bind and constrain the wire harness 4 to the support surface 1011. The structure is relatively simple; the through hole 1013 formed by the support portion 101 restricts the upward freedom of the constraint strap. After binding, the constraint strap presses the wire harness 4 against the support surface 1011, resulting in a stable and compact structure. Figure 1 , Figure 2 and Figure 5 As shown, the through hole 1013 is located close to the upper part of the support surface 1011, and the through hole 1013 passes through the transition edge between the support surface 1011 and the side of the support part 101, so that the binding width of the restraint strap is not too large when binding, thus ensuring the binding effect.

[0027] In this embodiment, the support portion 101 extends upward to form an auxiliary baffle 1014, and the auxiliary baffle 1014 is located on the side of the support surface 1011 opposite to the mounting portion 102; as Figure 1 , Figure 2 and Figure 5As shown, the surface of the auxiliary baffle 1014 is parallel to the direction of the wire harness 4 and has a set size along the direction of the wire harness 4 to ensure that it constrains the wire harness 4 and does not interfere with the through hole 1013. Therefore, it is divided into two or more parts located on both sides of the through hole 1013, which will not be described in detail here. The auxiliary baffle 1014 forms a lateral constraint on the wire harness 4 on the support surface 1011, preventing the wire harness 4 from sliding off the support surface 1011. The auxiliary baffle 1014, together with the support surface 1011 and the constraint band, makes up for the lack of constraint direction and inability to adapt to large wire diameters in the prior art constraint member 2. These issues ensure the consistency between the theoretical design and the actual wiring harness 4; prevent the wiring harness 4 from twisting and rubbing or impacting the vehicle body 5; combined with the structural design of the support part 101 being supported on the vehicle body 5, the cantilever support (the support part 101 forms a cantilever relative to the mounting part 102) is strengthened, which can better adapt to the large diameter wiring harness 4, support the weight of the wiring harness 4 and resist stress; of course, the auxiliary baffle 1014 adopted in this utility model is not necessarily a sheet structure, but can also be several upwardly extending rods arranged along the wiring harness 4, which can also achieve the purpose and are also within the protection scope of this utility model.

[0028] In this embodiment, the support portion 101 extends downwards on the side opposite to the mounting portion 102 to form a support baffle 1012; in this embodiment, "opposite" refers to the side away from the mounting portion 102, to ensure constraint fit on both sides; the wiring harness 4 generally runs along the edge of the vehicle body 5, such as... Figure 5 As shown, the support baffle 1012 is integrally formed by extending downward from the support part 101. After the mounting part 102 is installed on the vehicle body 5, the support baffle 1012 blocks the side of the edge of the vehicle body 5, which can resist the flipping in the direction of the plate surface, so that the entire base 1 has good anti-torsion performance. Combined with the auxiliary baffle 1014, it has a better effect of restraining the direction of the wire harness 4. The concept of the support baffle 1012 adopted in this utility model does not necessarily have to be a plate structure. It can also be several downward extending rods arranged along the direction of the wire harness 4, which can achieve the same purpose and are also within the protection scope of this utility model. The up and down in this utility model refers to the up and down direction in the figure, and does not mean the up and down of the device in use. It will not be elaborated here.

[0029] In this embodiment, the mounting part 102 is fixed to the vehicle body 5 by the vibration damper 3. The vibration damper 3 can have an effective damping effect, thereby reducing the vibration of the base 1. At the same time, it also has a damping effect on the vibration of the wiring harness 4, reducing the hard impact force and friction of the wiring harness 4. The structure and installation of the vibration damper 3 can achieve the vibration damping effect, and will not be described in detail here.

[0030] In this embodiment, the mounting part 102 includes a mounting part body 1021, a snap-fit ​​connector 1022 fixed downward to the mounting part body 1021, and a snap-fit ​​seat 1023 that mates with the snap-fit ​​connector 1022, such as Figure 5 As shown, the snap-fit ​​connector 1022 is a cedar-shaped buckle. The snap-fit ​​connector 1022 passes through the mounting hole in the vehicle body 5 and is fixed by the snap-fit ​​seat 1023. The snap-fit ​​seat 1023 is located below the mounting hole in the vehicle body 5 and engages with the snap-fit ​​connector 1022, tightly clamping the vehicle body 5 at that position for a stable installation. The vibration damping component 3 is located between the mounting body 1021 and the vehicle body 5, as shown... Figure 4 As shown, the damping component 3 is a damping rubber pad. After the snap-fit ​​seat 1023 snaps into the snap-fit ​​connector 1022, the mounting body 1021 presses tightly against the damping component 3, providing positive pressure for the base 1 to snap onto the body 5, so that the wiring harness 4 is securely connected to the body 5; thus achieving the effect of sound insulation and vibration reduction, absorbing excess vibration of the wiring harness 4, and preventing safety and NVH problems caused by friction and impact.

[0031] In this embodiment, the mounting body 1021 is recessed relative to the support 101, causing the base 1 to form a stepped structure. Furthermore, the mounting body 1021 and the support 101 are integrally formed via an intermediate connecting part 103. The structure is simple and compact. Simultaneously, the support 101 and the mounting body 102 form a parallel structure, which significantly increases the support area and ensures a stable support effect. Figure 5 As shown, the bottom surface of the support part 101 is flush with the bottom surface of the intermediate connecting part 103 and is supported on the vehicle body 5 together. The position of the vehicle body 5 corresponding to the bottom surface of the mounting part body 1021 is lowered to ensure installation constraint, thereby forming a more stable installation, which will not be described in detail here.

[0032] In this embodiment, the support portion 101 is a columnar structure with a rectangular cross-section, and the mounting portion body 1021 is a cylinder and is integrally formed on one side of the support portion 101 via an intermediate connecting portion 103, that is, on this side of the mounting portion body 1021, which will not be described in detail here; Figure 1 , Figure 2 and Figure 5 As shown, the support part 101 has a hollow structure, and the support baffle 1012 is integrally formed by extending downward from the side of the support part 101 away from the mounting part 102. This design is simple to manufacture and has low cost. Figure 1 and Figure 2 As shown, the mounting body 1021 is located at the lower part of the intermediate connecting part 103 and is integrally formed with the intermediate connecting part 103, as... Figure 1 and Figure 2As shown, the intermediate connecting part 103 is U-shaped, and the U-shape is a hollow structure formed by stiffening ribs 1031. The mounting part body 1021 is integrally formed coaxially with the semi-cylinder of the U-shape, and the mounting part body 1021 is located at the lower part of the intermediate connecting part 103. As shown, several stiffening ribs 1031 are located at the top of the mounting part body 1021, and the several stiffening ribs 1031 are arranged radially with the axis of the mounting part body 1021 as the center, which effectively improves the strength of the base 1, thereby having high support strength and being able to adapt to large diameter wire harnesses 4. The support baffle 1012 is integrally formed by extending downward from the side corresponding to the support part 101.

[0033] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, the two sides of the support part 101 adjacent to the support baffle 1012 are connected to the support baffle 1012 by an arc transition, which adapts to the shape of the edge of the vehicle body 5 at that location, maintains good fit and support, and reduces stress concentration.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A restraint device for vehicle wiring harnesses, characterized in that: The device includes a base and a constraint member. The base has a mounting part for fixing to the vehicle body and a support part for supporting the wiring harness. The constraint member is used to constrain the wiring harness to the support part. After the mounting part is fixed to the vehicle body, the support part is supported on the vehicle body.

2. The constraint device for vehicle wiring harnesses according to claim 1, characterized in that: The support portion forms a support surface, and the wire harness is supported on the support surface and constrained on the support surface by the constraint member.

3. The constraint device for vehicle wiring harnesses according to claim 1, characterized in that: When constraining the wire harness, the constraint member uses the support portion as a fixed base.

4. The constraint device for vehicle wiring harnesses according to claim 2, characterized in that: The constraint member is a constraint band, and a through hole is formed on the support part. The constraint band passes through the through hole to bind and constrain the wire harness to the support surface.

5. The constraint device for vehicle wiring harnesses according to claim 2, characterized in that: The support extends upward to form an auxiliary baffle, which is located on the side of the support surface opposite to the mounting portion.

6. The constraint device for vehicle wiring harnesses according to claim 2, characterized in that: The support portion extends downwards on the side opposite to the mounting portion to form a support baffle.

7. The constraint device for vehicle wiring harnesses according to claim 1, characterized in that: The mounting part is fixed to the vehicle body by a vibration damping component.

8. The constraint device for vehicle wiring harnesses according to claim 7, characterized in that: The mounting part includes a mounting part body, a snap connector fixed downward to the mounting part body, and a snap seat that mates with the snap connector. The snap connector passes through a mounting hole opened in the vehicle body and is fixed by the snap seat. The vibration damping member is located between the mounting part body and the vehicle body.

9. The constraint device for vehicle wiring harnesses according to claim 8, characterized in that: The mounting body is lowered relative to the support, causing the base to form a stepped structure, and the mounting body and the support are integrally formed through an intermediate connecting part.

10. The restraint device for vehicle wiring harnesses according to claim 8, characterized in that: The support part is a columnar structure with a rectangular cross-section, and the mounting part is a cylinder that is integrally formed on the side of the support part through an intermediate connecting part.

Images