CN216969560U

CN216969560U - Wire harness protection device

Info

Publication number: CN216969560U
Application number: CN202122713432.5U
Authority: CN
Inventors: 赵天阳; 董广宇; 魏明锐; 房亮; 王龙
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-07-15
Anticipated expiration: 2031-11-08

Abstract

The application relates to a wire harness protection device, including: the guide frame is provided with an inlet wire end and an outlet wire end which are oppositely arranged, and a bent and extended wiring channel is arranged between the inlet wire end and the outlet wire end so as to limit the spatial trend of a wiring harness; and the mounting part is fixed on the guide frame, and a mounting hole is formed in the mounting part and used for fixing the guide frame on the frame. The wire harness protection device can effectively utilize the wire harness arrangement space, so that the wire harness is guided and fixed, the interference of the wire harness and mechanical parts of the chassis is avoided, and the electrical performance and the safety of an automobile are ensured.

Description

Wire harness protection device

Technical Field

The application relates to the technical field of automobile chassis wiring harness arrangement, in particular to a wiring harness protection device.

Background

At present commercial vehicle chassis arranges the compactness, because reasons such as fixed knot structure, space restriction, mounting means lead to the pencil to arrange the space littleer and littleer, nevertheless along with user demand function increases the external diameter increase that leads to the pencil, for guaranteeing pencil life, the radius of buckling of pencil also needs corresponding increase. At present, the trunk wiring harness is protected by the corrugated pipe, so that the bending radius of the trunk wiring harness is further increased, and the problem of interference between the wiring harness and a chassis mechanical part is frequent.

SUMMERY OF THE UTILITY MODEL

Based on this, to the problem that present bellows protection easily leads to pencil and chassis mechanical parts to interfere, it is necessary to provide a pencil protection device that can avoid pencil and chassis mechanical parts to interfere.

According to an aspect of the present application, there is provided an apparatus comprising:

the guide frame is provided with a wire inlet end and a wire outlet end which are oppositely arranged, and a bent and extended wiring channel is arranged between the wire inlet end and the wire outlet end so as to limit the space trend of a wiring harness; and

and the mounting part is fixed on the guide frame, and a mounting hole is formed in the mounting part and used for fixing the guide frame on the frame.

In one embodiment, the plane of the incoming line end and the plane of the outgoing line end are not parallel to each other.

In one embodiment, the outlet end includes a main outlet and a branch outlet disposed at an angle to the main outlet and communicating with the main outlet.

In one embodiment, the wire harness protection device comprises two mounting pieces, and each mounting piece is provided with one mounting hole;

the central axes of the two mounting holes are straight lines with different surfaces.

In one embodiment, a fastening ring is embedded in the mounting hole.

In one embodiment, the guide frame includes a fixed bottom plate and two side plates, and the two side plates are respectively connected to two sides of the fixed bottom plate to form the routing channel in an enclosing manner.

In one embodiment, the fixed bottom plate and the two side plates are integrally formed, and a transition fillet is arranged at the joint of the fixed bottom plate and the side plates;

and a plurality of reinforcing ribs are arranged on the outer side of the guide frame.

In one embodiment, the guide frame is provided with an opening which is opposite to the fixed bottom plate and is communicated with the routing channel;

the height of the side plate is larger than or equal to the height of the cross section of the wiring harness, so that the top peripheral side surface of the wiring harness is prevented from protruding out of the opening.

In one embodiment, the wire harness protection device further includes at least two fixing portions, one of the fixing portions is disposed at the incoming line end, and the other fixing portion is disposed at the outgoing line end.

In one embodiment, the fixing part comprises two fixing holes which are arranged at intervals;

the two fixing holes are respectively arranged at two sides of the fixed bottom plate connected with the two side plates;

the fixing hole is configured as a square hole adapted to the cross section of the cable tie.

The wiring harness protection device limits the space trend of the wiring harness through the wiring channel which is arranged and bent to extend, and the installation part is arranged to fix the guide frame on the frame, so that the safety clearance between the wiring harness and the mechanical part of the chassis is guaranteed. The wire harness protection device can effectively utilize the wire harness arrangement space, so that the wire harness is guided and fixed, the interference of the wire harness and mechanical parts of the chassis is avoided, and the electrical performance and the safety of an automobile are ensured.

Drawings

Fig. 1 is a schematic structural view of a harness protection device according to an embodiment of the present application;

fig. 2 is a structural view of the wire harness protection device shown in fig. 1 at another angle.

Description of the reference numerals

1. A guide frame; 11. a wire inlet end; 12. a wire outlet end; 121. a main outlet; 122. a branch outlet; 13. a routing channel; 14. fixing the bottom plate; 15. a side plate; 16. reinforcing ribs; 17. a fixed part; 171. a fixing hole; 2. a mounting member; 21. mounting holes; 22. and (7) fastening rings.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

At present the commercial vehicle chassis arranges the compactness, because reasons such as fixed knot structure, space restriction, mounting means lead to the pencil to arrange the space littleer and littleer, nevertheless along with the external diameter increase that user demand function increases and leads to the pencil, for guaranteeing pencil life, avoid the pencil fatigue fracture when buckling, the radius of buckling of pencil also needs corresponding increase, the radius of buckling of pencil need set up 3 ~ 5 times to the pencil external diameter usually. At present, a trunk wire harness is protected by a corrugated pipe, the corrugated pipe is wrapped outside the wire harness, and the wire harness is protected from mechanical damage such as fracture and cutting. However, the bending radius of the trunk wiring harness is further increased by the corrugated pipe protection mode, and when the wiring harness arrangement space is small, the problem of interference between the wiring harness and chassis mechanical parts is frequent.

Referring to fig. 1, a harness protection device according to an embodiment of the present application includes a guide frame 1 and a mounting member 2. The guide frame 1 has a wire inlet end 11 and a wire outlet end 12 which are oppositely arranged, and a bent and extended routing channel 13 is arranged between the wire inlet end 11 and the wire outlet end 12 to limit the spatial direction of the wiring harness. The mounting member 2 is fixed to the guide frame 1, and the mounting member 2 is provided with a mounting hole 21 for fixing the guide frame 1 to the vehicle frame. The wiring harness protection device limits the space trend of the wiring harness through the wiring channel 13 which is arranged to be bent and extended, and the installation part 2 is arranged to fix the guide frame 1 on the frame, so that the safety clearance between the wiring harness and a chassis mechanical part is guaranteed. The wire harness protection device can effectively utilize the wire harness arrangement space, so that the wire harness is guided and fixed, the interference of the wire harness and chassis mechanical parts is avoided, and the electrical performance and the safety of an automobile are ensured.

It should be noted that the specific arrangement of the bending form of the routing channel should be determined according to the actual vehicle model and the arrangement condition of the chassis mechanical parts of the vehicle model, and it is sufficient to ensure that the wiring harness arranged in the wiring harness protection device and the chassis mechanical parts keep a safety gap. The meandering form of the trace path shown in fig. 1 and 2 should not be construed as limiting the present application.

When the wiring harness is arranged, the wiring harness is threaded into the wiring channel 13 from the wire inlet end 11 and threaded out from the wire outlet end 12. Referring to fig. 2, the plane of the incoming line end 11 and the plane of the outgoing line end 12 are not parallel to each other. Therefore, the wire harness is ensured to penetrate into and out of different directions, and the wire harness is suitable for most practical application scenes.

In some embodiments, the outlet 12 includes a main outlet 121 and a branch outlet 122 disposed at an angle to the main outlet 121 and in communication with the main outlet 121. The outgoing direction of the main outlet 121 is consistent with the outgoing direction of the outlet 12. It can be appreciated that wiring harness arrangements typically require branching of the wiring harness to ensure the connection requirements of the electrical components. The branch outlet 122 restricts the outgoing direction of the branch wire harness, and ensures that the outgoing direction of the branch wire harness is realized according to the design intention of the wire harness arrangement.

Of course, the location and number of branch outlets 122 are not limited to the foregoing embodiments. In other embodiments, the branch outlets 122 may also be disposed in the middle section of the routing channel 13, and a plurality of branch outlets 122 may also be disposed according to actual needs to ensure connection requirements of each electrical component.

In some embodiments, the wire harness protection device includes two mounting members 2, each mounting member 2 is provided with one mounting hole 21, and central axes of the two mounting holes 21 are straight lines with different planes. Therefore, the wire harness protection device is fixed on the frame from two different directions, the wire harness protection device is effectively prevented from shaking when a vehicle runs, the installation stability of the wire harness protection device is ensured, the wire harness is prevented from interfering with mechanical parts of a chassis, and the electrical performance and the safety of the vehicle are ensured. As a preferred embodiment, the mounting holes 21 are all in a long round hole structure so as to adapt to mounting errors and reduce the processing and assembling difficulty.

Further, a fastening ring 22 is embedded in the mounting hole 21. During installation, the wire harness protection device is fixed to the frame by the aid of bolts matched with the fastening ring 22. It should be noted that, the guide frame 1 and the mounting member 2 are usually made of plastics, and the fastening ring 22 is made of metal, so that the local strength of the mounting hole 21 is improved, the deformation caused by stress during fastening is avoided, and the mounting stability of the harness protection device is ensured.

The guide frame 1 includes a fixed bottom plate 14 and two side plates 15, and the two side plates 15 are respectively connected to two sides of the fixed bottom plate 14 to form the routing channel 13. Therefore, the wire harness is supported and fixed through the fixing bottom plate 14, the wire harness is arranged close to the fixing bottom plate 14, the two side edge plates 15 are used for surrounding and protecting the peripheral side surface of the wire harness, meanwhile, the trend of the wire harness in the direction perpendicular to the fixing bottom plate 14 is limited, the guiding and fixing reliability of the wire harness is guaranteed, and meanwhile, the assembling time of the chassis wire harness on the whole vehicle is reduced.

Specifically, PMKD 14 and two side boards 15 integrated into one piece, PMKD 14 and side board 15's junction are equipped with the transition fillet, guarantee that the pencil is level and smooth with the contact department of walking line passageway 13, help reducing pencil surface wear. In the embodiment, the guide frame 1 is integrally formed by adopting a PA66 material, so that the production cost is reduced. The PA66 has the advantages of high mechanical strength, abrasion resistance, impact resistance, cold resistance, aging resistance, heat resistance, tear resistance and the like, and the guide frame 1 made of the PA66 can well protect the wiring harness in the wiring channel 13. The plurality of reinforcing ribs 16 are provided on the outer side of the guide frame 1, which contributes to reinforcing the structure of the guide frame and improving the mechanical strength of the wire harness protection device.

The guide frame 1 is provided with an opening opposite to the fixing bottom plate 14 and communicated with the wiring channel 13, so that the wiring harness arranged in the wiring channel 13 can be conveniently adjusted from the opening, and the operability of wiring harness arrangement is improved. The height of the side plate 15 is equal to or greater than the cross-sectional height of the wire harness to prevent the top peripheral side surface of the wire harness from protruding out of the opening, which helps to reduce the surface wear of the wire harness.

The wire harness protection device further comprises at least two fixing parts 17, wherein one fixing part 17 is arranged at the wire inlet end 11, and the other fixing part 17 is arranged at the wire outlet end 12. Therefore, the fixing effect of the wiring harness can be guaranteed, the wiring harness is prevented from being separated from the wiring channel 13, and the reliability of the wiring harness protection device is guaranteed. When more than two fixing parts 17 are adopted, the rest fixing parts 17 except the wire inlet end 11 and the wire outlet end 12 can be uniformly distributed at the middle section of the wiring channel 13, and the fixing effect of the wiring harness is further improved.

Optionally, the specific arrangement of the fixing portion 17 is not limited, and the wire harness can be stably fixed to the routing channel 13. In some embodiments, the fixing portion 17 includes two fixing holes 171 disposed at intervals, and the two fixing holes 171 are disposed on two sides of the fixing bottom plate 14 connected to the two side plates 15, respectively, so as to facilitate processing and save cost. The fixing hole 171 is configured as a square hole adapted to the cross section of the band. When fixing the pencil, penetrate the week side surface that encircles the pencil with the one end of ribbon from the fixed orifices 171 of one of them side, wear out from the fixed orifices 171 of opposite side again, at last with the one end of ribbon and the other end locking fixed, easy and simple to handle, and the ribbon is easily changed. In a preferred embodiment, the plane of the central axes of the two fixing holes 171 of each fixing portion 17 is perpendicular to the direction of the wire harness at the fixing portion 17, so as to achieve a good fixing effect.

In other embodiments, the fixing portion 17 may also adopt a fixing buckle, and the fixing buckle is disposed at different positions of the routing channel 13 to clamp and fix the wire harness at each position.

For the purpose of facilitating an understanding of the technical solutions and effects of the present application, reference will now be made in detail to specific embodiments of the present application, which are illustrated in the accompanying drawings.

Referring to fig. 1 and 2, a harness protection device according to an embodiment of the present application includes a guide frame 1 and two mounting members 2. The guide frame 1 is provided with a wire inlet end 11 and a wire outlet end 12 which are oppositely arranged, and the plane of the wire inlet end 11 is not parallel to the plane of the wire outlet end 12. A bent and extended routing channel 13 is arranged between the incoming line end 11 and the outgoing line end 12 to limit the spatial direction of the wiring harness and avoid the interference between the wiring harness and mechanical parts of the chassis. The outlet end 12 includes a main outlet 121 and a branch outlet 122 disposed at an angle to the main outlet 121 and communicated with the main outlet 121, so as to limit the outlet direction of the branch harness and ensure the connection requirement of each electrical component.

The mounting part 2 is fixed on the guide frame 1, and the mounting part 2 is provided with a mounting hole 21 for fixing the guide frame 1 on a vehicle frame, so that a safety gap between a wire harness and a chassis mechanical part is ensured, and the electrical performance and the safety of an automobile are ensured. Wherein, be equipped with the mounting hole 21 of a slotted hole structure on every installed part 2, adapt to installation error, the axis of two mounting holes 21 is each other heterofacial straight line, avoids pencil protection device to take place to shake when the vehicle operation. The metal fastening ring 22 is embedded in the mounting hole 21, so that the local strength of the mounting hole 21 is improved, and the stress deformation during fastening is avoided.

The guide frame 1 includes a fixed bottom plate 14 and two side plates 15, and the two side plates 15 are respectively connected to two sides of the fixed bottom plate 14 to form the routing channel 13. The fixed bottom plate 14 and the two side plates 15 of the guide frame 1 are integrally formed by adopting a PA66 material, a transition fillet is arranged at the joint of the fixed bottom plate 14 and the side plates 15, and a plurality of reinforcing ribs 16 are arranged on the outer side of the guide frame 1. The wire harness protection device is reliable in mechanical strength, has the advantages of abrasion resistance, impact resistance, cold resistance, aging resistance, heat resistance, tear resistance and the like, and can well protect the wire harness in the wiring channel 13.

The guide frame 1 is provided with an opening opposite to the fixing bottom plate 14 and communicated with the wiring channel 13, so that the wiring harness arranged in the wiring channel 13 can be conveniently adjusted from the opening, and the operability of wiring harness arrangement can be improved. The height of the side plate 15 is equal to or greater than the height of the cross section of the wire harness, so as to prevent the top peripheral side surface of the wire harness from protruding from the opening, and to contribute to reducing the surface wear of the wire harness.

The wire harness guiding device is provided with four fixing parts 17 which are respectively positioned at the middle sections of the wire inlet end 11, the wire outlet end 12 and the wiring channel 13, and the four fixing parts 17 are uniformly distributed to ensure the fixing effect of the wire harness. Each fixing portion 17 includes two fixing holes 171 arranged at an interval, the two fixing holes 171 are respectively arranged at two sides of the fixing base plate 14 connected with the two side plates 15, and the fixing holes 171 are configured as square holes matched with the cross section of the binding belt, so that the binding belt can be conveniently penetrated to tightly fix the wire harness on the fixing base plate 14.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of this patent shall be subject to the appended claims.

Claims

1. A wire harness protection device, comprising:

the mounting piece is fixed on the guide frame, and is provided with a mounting hole for fixing the guide frame on the frame;

the guide frame comprises a fixed bottom plate and two side plates, and the two side plates are respectively connected to two sides of the fixed bottom plate so as to form the wiring channel in a surrounding manner; the fixed bottom plate and the two side plates are integrally formed, and a transition fillet is arranged at the joint of the fixed bottom plate and the side plates; and a plurality of reinforcing ribs are arranged on the outer side of the guide frame.

2. The wire harness protection device according to claim 1, wherein a plane of the incoming end and a plane of the outgoing end are not parallel to each other.

3. The harness protection device of claim 1, wherein the outlet end includes a main outlet and a branch outlet angled from and in communication with the main outlet.

4. The wire harness protection device according to any one of claims 1 to 3, wherein the wire harness protection device comprises two of the mounting members, one of the mounting holes being provided on each of the mounting members;

5. The wire harness protection device according to claim 4, wherein a fastening ring is embedded in the mounting hole.

6. The wire harness protection device of claim 4, wherein the mounting hole is configured as an oblong hole.

7. The harness protection device of claim 1, wherein the guide frame is provided with an opening opposite the fixed base plate and communicating with the routing channel;

8. The wire harness protection device according to claim 7, further comprising at least two fixing portions, wherein one of the fixing portions is disposed at the inlet end, and wherein the other fixing portion is disposed at the outlet end.

9. The wire harness protection device according to claim 8, wherein the fixing portion includes two fixing holes arranged at intervals;

the two fixing holes are respectively formed in the two sides, connected with the two side plates, of the fixing bottom plate;