Branch guiding and fixing structure and cross-type special wire harness arrangement method

Abstract

The invention discloses a branch guiding and fixing structure and a cross-type special wire harness arrangement method.The branch guiding and fixing structure comprises a fixing body, and the fixing body is provided with a wire harness trunk groove, a first branch groove, a second branch groove and a third branch groove; the side walls, away from the second branch groove, of the first branch groove and the third branch groove and the wire harness trunk groove form arc transition angles larger than 90 degrees. The connecting direction of each special wire in the wire harness trunk and the trunk wire harness are divided into first special guide branches which are arranged in the first branch grooves, wherein the angle between the connecting direction of each special wire and the trunk wire harness is smaller than 90 degrees; dividing the connecting direction of each special wire of the wire harness trunk into a second special wire branch, wherein the angle between the connecting direction of each special wire and the trunk wire harness is greater than or equal to 90 degrees, and placing the second special wire branch into a third branch groove; a conventional wire branch is arranged in the second branch groove, and finally the branch wires passing through the first branch groove, the second branch groove and the third branch groove are bundled together, so that the bending angle of the special wire is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile wire harness, in particular to a branch guiding and fixing structure and a cross type special wire harness arrangement method. BACKGROUND

[0002] In order to ensure the signal transmission stability of the special wire, the wire has a turning radius requirement for its arrangement on the vehicle. In view of the comprehensive consideration of the vehicle space, assembly process and product delivery route and other related aspects, the special wire is usually bundled together with the ordinary low-voltage wire harness, and a separate branch is formed at the necessary node. After the arrangement of the whole vehicle low-voltage wire harness is formed, the main path is basically confirmed. The controller and the actuator / sensor at both ends of the special wire are often in the same wire harness branch position due to the distribution in different directions, and the special wire needs to be arranged in different directions. If bundled at any fixed angle, the bending of part of the special wire harness will not meet the requirements, thereby causing quality problems. SUMMARY The present application aims to solve at least one of the technical problems in the prior art. To this end, the present application provides a branch guiding and fixing structure and a cross type special wire harness arrangement method.

[0003] According to the branch guiding and fixing structure of the present application, the fixed main body is provided with a wire harness main groove, a first branch groove, a second branch groove and a third branch groove, the first branch groove, the second branch groove and the third branch groove are in communication with the wire harness main groove, the first branch groove, the second branch groove and the third branch groove are arranged on the same side of the wire harness main groove at intervals, and the sidewalls of the first branch groove and the third branch groove away from the second branch groove are in arc transition with the wire harness main groove at an angle greater than 90 degrees.

[0004] According to the branch guiding and fixing structure of the present application, at least the following beneficial effects are achieved: The connection direction of each special wire of the wire harness main trunk and the angle of the main trunk wire harness are less than 90 degrees, which is divided into a first special wire branch and placed in the first branch groove. The connection direction of each special wire of the wire harness main trunk and the angle of the main trunk wire harness are greater than or equal to 90 degrees, which is divided into a second special wire branch and placed in the third branch groove. The conventional wire branch is placed in the second branch groove, and finally the branch wires passing through the first branch groove, the second branch groove and the third branch groove are bundled together. The arc transition angle greater than 90 degrees can ensure that the angle of the first special wire branch is greater than 90 degrees, which meets the bending angle requirement of the special wire. The present application can make the various special wire branches in the same bifurcation area be bundled together with the conventional wire branch, which not only meets the angle requirement of all the special wires, but also meets the requirements of convenient transportation and fixing of these wires and the performance requirements of each wire.

[0005] According to some embodiments of the present application, the wire harness trunk slot is provided with a first branch position for separating the wire harness in the first branch slot and a second branch position for separating the wire harness in the third branch slot, and the first branch position and the second branch position are respectively located on both sides of the extension axis of the first branch slot outlet and the third branch slot outlet.

[0006] According to some embodiments of the present application, the slot bottoms of the first branch slot, the second branch slot and the third branch slot are located in the same plane, and the same plane passes through both side walls of the wire harness trunk slot.

[0007] According to some embodiments of the present application, the lengths of the first branch slot, the second branch slot and the third branch slot are greater than or equal to twenty millimeters.

[0008] According to some embodiments of the present application, both ends of the wire harness trunk slot are provided with at least two first cable tie holes.

[0009] According to some embodiments of the present application, the first branch slot, the second branch slot and the third branch slot are each provided with at least two second cable tie holes.

[0010] According to some embodiments of the present application, the fixing body is provided with a fixing part for fixing the fixing body.

[0011] According to some embodiments of the present application, the fixing part includes a barb fixing hole provided in the wire harness trunk slot.

[0012] According to some embodiments of the present application, a cross-type special wire harness arrangement method is provided, which is applied to the branch guiding and fixing structure described in any one of the above embodiments, and the method comprises the following steps: Separating the branch wires of the wire harness trunk at the branch position into a first special guide wire branch, a conventional wire branch and a second special wire branch, wherein the angle between the connection direction of each special wire of the first special guide wire branch and the wire harness trunk is less than 90°, and the angle between the connection direction of each special wire of the second special wire branch and the wire harness trunk is greater than or equal to 90°; Placing the wire harness trunk in the wire harness trunk slot, fixing the first special guide wire branch in the first branch slot, fixing the conventional wire branch in the second branch slot, and fixing the second special wire branch in the third branch slot; Commonly bundling the branch wires passing through the first branch slot, the second branch slot and the third branch slot.

[0013] According to some embodiments of the present application, the branch wire of the wire harness trunk in the branch position is analyzed and divided into a first special guide wire branch, a general wire branch, and a second special wire branch, respectively, wherein the angle between the connection direction of each special wire of the first special guide wire branch and the wire harness trunk is < 90°, and the angle between the connection direction of each special wire of the second special wire branch and the wire harness trunk is ≥ 90°, comprising: The branch point of each special wire of the first special guide wire branch and the wire harness trunk is set as a first branch point, and the branch point of each special wire of the second special guide wire branch and the wire harness trunk is set as a second branch point. The first branch point and the second branch point are controlled to be located on both sides of the extension axis of the first branch slot outlet and the extension axis of the third branch slot outlet, respectively.

[0014] Other features and advantages of the present application will be set forth in the subsequent description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and examples, wherein: Figure 1 It is a structural schematic diagram of a branch guide fixing structure of the present application; Figure 2 It is a wire harness arrangement schematic diagram of a branch guide fixing structure of the present application; Figure 3 It is a wire harness arrangement local schematic diagram of a branch guide fixing structure of the present application; Figure 4 It is a flow chart of a branch cross type special wire harness arrangement method of the present application.

[0016] LIST OF ELEMENTS Fixed body 100, wire harness trunk slot 110, first cable tie hole 111, first branch slot 120, second cable tie hole 121, second branch slot 130, third branch slot 140, barb fixing hole 150, wire harness trunk 200, wire harness trunk direction schematic 201, first special guide wire branch 210, first special guide branch direction schematic 211, second special wire branch direction schematic 231. DETAILED DESCRIPTION

[0017] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0018] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down and the like, is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0019] In the description of the present application, more refers to more than two. If there is a description of first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the sequence of technical features indicated.

[0020] In the description of the present application, unless otherwise explicitly limited, the words such as arrangement, installation, connection and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0021] The technical solutions of the present application will be described below in conjunction with the drawings. Obviously, the following described embodiments are part of the embodiments of the present application, not all embodiments.

[0022] The harness main stem 200 is between two fixed points, and the special wire bundled in the main stem is not easy to bend. In actual situation, the harness main stem 200 is easily affected by the special wire, and deviates from the design scheme. This deviation will further affect the actual angle of the special wire branch. Therefore, in order to achieve the purpose of controlling the branch angle, it is necessary to eliminate the mutual influence of this natural state. First, it is necessary to ensure that the shape of the harness main stem 200 is within the expected range, so the fixer should follow the direction of the harness main stem 200 to fix the harness main stem 200.

[0023] Therefore, with reference to Figure 1 、 Figure 2 、 Figure 3The application provides an embodiment of a branch guiding fixing structure, which comprises a fixing body 100, the fixing body 100 is provided with a wire harness main trunk groove 110, a first branch groove 120, a second branch groove 130 and a third branch groove 140, the first branch groove 120, the second branch groove 130 and the third branch groove 140 are all communicated with the wire harness main trunk groove 110, a wire harness main trunk 200 is arranged in the wire harness main trunk groove 110, branch wires are separated from the main trunk wire harness along the first branch groove 120, the second branch groove 130 and the third branch groove 140, wherein the connection direction of each special wire of the wire harness main trunk 200 and the angle of the main trunk wire harness < 90° are divided into first special wire guiding branches and arranged in the first branch groove 120, the connection direction of each special wire of the wire harness main trunk 200 and the angle of the main trunk wire harness ≥ 90° are divided into second special wire branches 230 and arranged in the third branch groove 140, and the conventional wire branches 220 are arranged in the second branch groove 130. The first branch groove 120, the second branch groove 130 and the third branch groove 140 are all arranged on the same side of the wire harness main trunk groove 110 at intervals, so that the branch wires passing through the first branch groove 120, the second branch groove 130 and the third branch groove 140 can be collectively bundled.

[0024] Referring to Figure 3 , the wire harness main trunk direction schematic 201, the first special wire guiding branch direction schematic 211 and the second special wire branch direction schematic 231 are shown, the side walls of the first branch groove 120 and the third branch groove 140 away from the second branch groove 130 are all in an arc transition angle greater than 90 degrees with the wire harness main trunk groove 110, so that the angle of the first special wire guiding branch is greater than 90 degrees, and the bending angle of the special wire is met. This kind of combined constraint makes the special wire in the branch area not have a bending angle less than 90 degrees, and is not affected by transportation, installation or driving, keeps the consistency of the shape, and thus guarantees the reliability of each vehicle.

[0025] The application makes the various direction special wires in the same branch area gathered and bundled with the conventional wire branches 220, which meets the angle requirements of all the special wires and achieves the purposes that the wires can be gathered in a wire harness for convenient transportation and fixing, and the respective performance requirements can be met.

[0026] Further, the branch positions in the wire harness trunk 200 are designed to avoid the crossing of the special wires with different directions in the wire harness trunk 200. The wire harness trunk slot 110 is provided with a first branch position for separating the wire harness in the first branch slot 120 and a second branch position for separating the wire harness in the third branch slot 140. The first branch position and the second branch position are respectively located on the two sides of the extension axis of the outlet of the first branch slot 120 and the outlet of the third branch slot 140. That is, the first special wire branch 210 has a whole direction of <90°, is fixed in the first branch slot 120, and the branch point of the wire harness trunk is above the parallel position of the first branch slot 120. The second special wire branch 230 has a whole direction of >90°, is fixed in the third branch slot 140, and the branch point of the wire harness trunk is below the parallel position of the third branch slot 140. In this way, the first special wire branch 210 and the second special wire branch 230 do not cross and overlap in the wire harness trunk. The second branch slot 130 is used to fix the ordinary wire harness branch without special wires. The second special wire complies with the direction of the wire harness trunk 200 and is bundled together with the wire harness trunk.

[0027] Further, the bottoms of the first branch slot 120, the second branch slot 130 and the third branch slot 140 are located in the same plane and the same plane passes through the two side walls of the wire harness trunk slot 110, that is, the bottoms of the first branch slot 120, the second branch slot 130 and the third branch slot 140 are higher than the bottom surface of the trunk area fixer. On the one hand, the space below can accommodate the strap head so that it does not interfere with the floor. On the other hand, the wire diameter can be calculated and the position of the special wire in the trunk (such as the upper layer of the trunk) can be set to bend the special wire at the same height as much as possible without height difference. The bottom of the fixing body 100 is designed to contact and fit the shape of the floor to reduce the occupation of the space of the whole vehicle. In order to save costs, the fixing body 100 is an open structure in the embodiment. In other embodiments, the fixing body 100 is a closed structure to completely protect the wire harness trunk 200.

[0028] Further, the lengths of the first branch slot 120, the second branch slot 130 and the third branch slot 140 are greater than or equal to twenty millimeters to ensure the bending space of the special wire harness. In other embodiments, the first branch slot 120, the second branch slot 130 and the third branch slot 140 can be further extended or folded again along the direction of the branch wire harness to converge into the same total branch slot. That is, all branch wires converge from the total branch slot and are bundled. This can also achieve the design of separating the special wire harness with different directions to ensure that the bending angle is not affected by transportation, installation or driving and to ensure the performance of the special wire.

[0029] Furthermore, each end of the main trunk slot 110 is provided with at least two first cable tie holes 111, which facilitates the cable tie to fix the main trunk 200 of the wire harness within the main trunk slot 110. The first branch slot 120, the second branch slot 130, and the third branch slot 140 are each provided with at least two second cable tie holes 121, and the branch wires within the corresponding branch slots are also fixed with cable ties.

[0030] Furthermore, the fixing body 100 is provided with a fixing part for fixing the fixing body 100. The fixing part includes a barbed fixing hole 150 provided in the main groove 110 of the wire harness, which can be directly snapped onto the bolt positioning part. The barbed fixing hole 150 refers to a hole with a special edge that is pre-stamped or designed on the body sheet metal or structural parts. It is specifically used to cooperate with the barbed elastic claws on the wire harness clip to achieve quick and firm fixing of the wire harness. Depending on the application position of the branch guide fixing structure, the fixing part can also adopt a fastening structure with bolt and nut.

[0031] Reference Figure 4 The present invention also provides an embodiment of a method for arranging cross-type special wire harnesses, the method being applied to the branch guiding and fixing structure of any of the above claims, the method comprising: Step S100: Separate the branch lines of the main wire harness 200 at the branch position into a first special guide wire branch 210, a conventional wire branch 220, and a second special wire branch 230, wherein the connection direction of each special wire of the first special guide wire branch 210 is at an angle of <90° with the main wire harness, and the connection direction of each special wire of the second special wire branch 230 is at an angle of ≥90° with the main wire harness; Step S200: Set the main wire harness 200 in the main wire harness slot 110, fix the first special guide wire branch 210 in the first branch slot 120, fix the conventional wire branch 220 in the second branch slot 130, and fix the second special wire branch 230 in the third branch slot 140. Step S300: Bundle together the branch lines that pass through the first branch slot 120, the second branch slot 130 and the third branch slot 140 in sequence.

[0032] This method allows for the convergence of various special conductors with different orientations within the same bifurcation area, along with the 220-degree bundling of conventional conductor branches. This satisfies the angle requirements of all special conductors, facilitates transportation and securing these conductors within a single bundle, and meets their respective performance requirements. According to some embodiments of the present invention, step S100 further includes: The branch point of each special conductor of the first special guide wire branch 210 and the main trunk of the wire harness 200 is set as the first branch point, and the branch point of each special conductor of the second special guide wire branch and the main trunk of the wire harness 200 is set as the second branch point. The first and second branch points are located on either side of the extended axis of the first branch slot 120 outlet and the extended axis of the third branch slot 140 outlet, respectively. The branching positions within the main harness 200 are specified based on the routing of the special conductors. This ensures that special conductors with different routings do not cross within the main harness 200 as much as possible. The second special guide wire branch follows the direction of the main harness 200 and is bundled together with the main harness. This cross-type special harness arrangement method allows for the diversion of multi-routing special harnesses, ensuring that their bending angles are not affected by transportation, installation, or travel, thus guaranteeing the performance of the special conductors.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A branch-guided fixing structure, characterized in that, include: The fixed body is provided with a main trunk groove, a first branch groove, a second branch groove, and a third branch groove. The first branch groove, the second branch groove, and the third branch groove are all connected to the main trunk groove. The first branch groove, the second branch groove, and the third branch groove are all arranged at intervals on the same side of the main trunk groove. The sidewalls of the first branch groove and the third branch groove away from the second branch groove are all arc transition angles greater than 90 degrees with the main trunk groove.

2. The branch-guided fixing structure according to claim 1, characterized in that, The main trunk of the wire harness is provided with a first branch position for separating the wire harness in the first branch groove and a second branch position for separating the wire harness in the third branch groove. The first branch position and the second branch position are located on both sides of the extension axis of the outlet of the first branch groove and the extension axis of the outlet of the third branch groove, respectively.

3. The branch-guided fixing structure according to claim 1, characterized in that, The bottoms of the first branch slot, the second branch slot, and the third branch slot are all located on the same plane, and the same plane passes through the two side walls of the main trunk slot of the wire harness.

4. The branch-guided fixing structure according to claim 1, characterized in that, The lengths of the first branch slot, the second branch slot, and the third branch slot are greater than or equal to 20 millimeters.

5. The branch-guided fixing structure according to claim 1, characterized in that, At least two first cable tie holes are provided at both ends of the main trunk of the wire harness.

6. The branch-guided fixing structure according to claim 1, characterized in that, The first branch slot, the second branch slot, and the third branch slot are each provided with at least two second cable tie holes.

7. The branch-guided fixing structure according to claim 1, characterized in that, The fixing body is provided with a fixing part for fixing the fixing body.

8. The branch-guided fixing structure according to claim 7, characterized in that, The fixing part includes barbed fixing holes provided in the main groove of the wire harness.

9. A method for arranging cross-type special wire harnesses, characterized in that, The method is applied to the branch-guided fixing structure according to any one of claims 1 to 8, and the method includes: The branch lines at the branch positions of the main wire harness are separated into a first special guide wire branch, a conventional wire branch, and a second special wire branch. The connection direction of each special wire in the first special guide wire branch is at an angle of <90° with the main wire harness, and the connection direction of each special wire in the second special wire branch is at an angle of ≥90° with the main wire harness. The main trunk of the wire harness is placed in the main trunk slot of the wire harness, the first special guide wire branch is fixed in the first branch slot, the conventional wire branch is fixed in the second branch slot, and the second special wire branch is fixed in the third branch slot. The branch lines that pass through the first branch slot, the second branch slot, and the third branch slot are bundled together.

10. The method for arranging cross-type special wire harnesses according to claim 9, characterized in that, The analysis of the branch lines at the branch positions of the main wire harness trunk is divided into three categories: a first special guide wire branch, a conventional conductor branch, and a second special conductor branch. Specifically, the connection angle between each special conductor in the first special guide wire branch and the main wire harness is <90°, and the connection angle between each special conductor in the second special conductor branch and the main wire harness is ≥90°. This includes: The branch point between each special conductor of the first special guide wire branch and the main trunk of the wire harness is designated as the first branch point, and the branch point between each special conductor of the second special guide wire branch and the main trunk of the wire harness is designated as the second branch point. The first branch point and the second branch point are controlled to be located on both sides of the extension axis of the first branch slot outlet and the extension axis of the third branch slot outlet, respectively.

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