Wire harness protection device, wire harness system, and vehicle

Abstract

The application discloses a wire harness protection device, a wire harness system and a vehicle, and belongs to the technical field of vehicle accessories. The disclosed vehicle comprises a wire harness system, and the wire harness system comprises a wire harness protection device. The wire harness protection device comprises a drag chain for sleeving on a wire harness. One of two adjacent chain links of the drag chain is provided with a limiting groove, and the other is provided with a limiting block. The limiting groove has a first side wall and a second side wall, and the limiting block can rotate between the first side wall and the second side wall. A matching block is arranged in the limiting groove, and the surface of the limiting block towards the limiting groove is provided with a matching groove. The matching groove has a third side wall and a fourth side wall, and the matching block can rotate between the third side wall and the fourth side wall. During relative rotation of the two adjacent chain links, when the limiting block abuts against the first side wall, the matching block abuts against the third side wall; and when the limiting block abuts against the second side wall, the matching block abuts against the fourth side wall. The wire harness protection device can reduce the probability of wire harness distortion and bending caused by sliding of a vehicle door.

Description

Technical Field

[0001] This application belongs to the field of vehicle parts technology, specifically relating to a wiring harness protection device, a wiring harness system, and a vehicle. Background Technology

[0002] With continuous innovation and increasingly rich functionality in vehicles, sliding door mechanisms are becoming more and more common. These sliding mechanisms not only give vehicles a unique appearance, increasing their sense of style and technology, but also improve the convenience of vehicle use to a certain extent.

[0003] However, in actual use, this push-pull sliding structure has also caused some new problems, especially regarding the door wiring harness. Specifically, in order to ensure the normal operation of various electronic components on the door, the door is usually connected to a wiring harness. But when the user pushes or pulls the door, causing it to slide relative to the vehicle body, the wiring harness is prone to twisting and bending as the door slides. This not only affects the lifespan of the wiring harness but may also cause circuit failures, thereby interfering with the normal operation of the vehicle. Utility Model Content

[0004] The purpose of this application is to provide a wiring harness protection device, wiring harness system, and vehicle that can solve the problem in the related art that wiring harnesses are prone to twisting and bending as the vehicle door slides.

[0005] In a first aspect, embodiments of this application provide a wire harness protection device, comprising: a drag chain for sleeved on the outside of the wire harness, the drag chain comprising at least two links hinged in sequence, one of two adjacent links being provided with a limiting groove and the other with a limiting block, the limiting groove having a first sidewall and a second sidewall, and the limiting block being rotatable between the first sidewall and the second sidewall.

[0006] The limiting groove is provided with a mating block, and the surface of the limiting block facing the limiting groove is provided with a mating groove. The mating groove has a third side wall and a fourth side wall, and the mating block can rotate between the third side wall and the fourth side wall.

[0007] During the relative rotation of two adjacent chain links, when the limiting block abuts against the first sidewall, the mating block abuts against the third sidewall; when the limiting block abuts against the second sidewall, the mating block abuts against the fourth sidewall.

[0008] The wiring harness protection device provided in this embodiment includes a cable chain. The cable chain is used to sleeve the wiring harness. During the relative rotation of two adjacent links of the cable chain, when the limiting block abuts against the first side wall of the limiting groove, the mating block abuts against the third side wall of the mating groove; when the limiting block abuts against the second side wall of the limiting groove, the mating block abuts against the fourth side wall of the mating groove. With this configuration, the rotation angle of two adjacent links can be limited to a preset angle range through the cooperation of the limiting block and the limiting groove, as well as the mating block and the mating groove. This allows the portion of the wiring harness corresponding to the two adjacent links to move along a preset trajectory. Therefore, using the wiring harness protection device provided in this embodiment reduces the probability of the wiring harness twisting and bending as the vehicle door slides.

[0009] Optionally, one of two adjacent chain links has limiting grooves on both opposite sides, and the other has limiting blocks on both opposite sides. The limiting grooves and limiting blocks correspond one-to-one. One of the limiting grooves contains a mating block, and the surface of the corresponding limiting block has a mating groove. With this arrangement, two adjacent chain links engage through at least two limiting grooves and at least two limiting blocks, making the engagement between adjacent chain links more reliable, resulting in smoother operation of the cable chain and extending its service life. Furthermore, this arrangement only provides mating blocks in some limiting grooves and mating grooves on the surfaces of some limiting blocks, simplifying the chain link structure, reducing the processing difficulty of the chain links, and lowering the scrap rate.

[0010] Optionally, at least two of the chain links are provided with the limiting groove, and the included angles formed by the first sidewall and the second sidewall of the at least two limiting grooves are different, which makes the rotatable angle range of the at least two chain links different, so as to better adapt to the movement requirements of different parts of the wire harness.

[0011] Optionally, the wiring harness protection device further includes a first cable protection box. The cable chain has a fixed end connected to the first cable protection box, which is used to connect to the vehicle body. The first cable protection box allows the first end of the wiring harness to pass through. The first cable protection box is equipped with a stop, at least a portion of which is located on one side of the fixed end and on the swing path of the cable chain. With this configuration, the cable chain can be easily connected to the vehicle body using the first cable protection box, and the first cable protection box can protect the wiring harness, thereby extending its service life. Furthermore, the stop can restrict the swing of the cable chain, thus better constraining the movement trajectory of the wiring harness, further reducing the probability of twisting and bending of the wiring harness.

[0012] Optionally, the first cable protection box includes a first sub-box and a second sub-box, which are detachably connected and together form a first wire channel through which the first end of the wire harness can pass. One of the first and second sub-boxes has a first engaging portion, and the other has a positioning portion. The first engaging portion and the positioning portion are arranged opposite to each other. Each link has a first opening and a second opening. Adjacent links are hinged through the first and second openings of one of the links. The link located at the fixed end is the first link, and the link adjacent to the first link is the second link. The first link and the second link are hinged through the first and second openings of the second link. The first opening of the first link engages with the positioning portion, and a portion of the first engaging portion passes through the second opening of the first link and engages with the first link. With this configuration, it is easier for the first end of the wire harness to pass through the first cable protection box. In addition, with this configuration, if either the first sub-box or the second sub-box is damaged, only the damaged one needs to be replaced, thus reducing waste. Furthermore, this configuration directly utilizes the first and second openings on the chain links to achieve the connection between the fixed end of the cable chain and the first cable guard box, thereby simplifying the structure of the cable chain and reducing the processing difficulty of the cable chain.

[0013] Optionally, the wire harness protection device further includes a rotating component and a second wire protection box. The cable chain has a movable end connected to the rotating component, and the rotating component is rotatably connected to the second wire protection box. The second wire protection box is used to connect to a vehicle door. The rotating component has a second wire channel, and the second wire protection box has a third wire channel. The second wire channel and the third wire channel are sequentially connected and allow the second end of the wire harness to pass through sequentially. In this design, the position of the rotating component relative to the second wire protection box is flexibly adjustable, which reduces the requirements for deformation of the cable chain itself. This simplifies the structure of the cable chain and further reduces the probability of bending and twisting of the wire harness.

[0014] Optionally, the rotating component includes a first sub-part and a second sub-part, which are detachably connected and together form the second conductor channel. With this configuration, the second end of the wire harness can pass through the second conductor channel more easily, and if either the first or second sub-part is damaged, only the damaged part needs to be replaced, thus reducing waste.

[0015] Optionally, the second cable protection box includes a first box section and a second box section, which are detachably connected and together form the third conductor channel. With this configuration, the second end of the cable harness can pass through the third conductor channel more easily, and if either the first box section or the second box section is damaged, only the damaged one needs to be replaced, thus reducing waste.

[0016] Optionally, the wiring harness protection device further includes a first wiring box, a second wiring box, and a flexible protective sleeve. The cable chain has a fixed end and a movable end. The fixed end is connected to the first wiring box, which is used to connect to the vehicle body and allows the first end of the wiring harness to pass through. The movable end is connected to the second wiring box, which is used to connect to the vehicle door and allows the second end of the wiring harness to pass through. The flexible protective sleeve is fitted over the cable chain and is detachably connected to both the first and second wiring boxes. This configuration protects the cable chain, thereby extending its service life. Furthermore, the detachable connection between the flexible protective sleeve and both the first and second wiring boxes facilitates replacement and reduces the difficulty of cable chain inspection and maintenance.

[0017] Secondly, embodiments of this application provide a wire harness system, including a wire harness and the wire harness protection device described above, wherein the cable chain of the wire harness protection device is sleeved on the outside of the wire harness. The wire harness system provided in this application has the same beneficial effects as the wire harness protection device described above, and will not be repeated here.

[0018] Thirdly, embodiments of this application provide a vehicle, including a vehicle body, a door, and the wiring harness system described above. The cable chain of the wiring harness system has a fixed end and a movable end. The fixed end of the cable chain is connected to the vehicle body, and the movable end of the cable chain is connected to the door. The vehicle provided by this application has the same beneficial effects as the wiring harness system described above, and will not be repeated here. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the wire harness system disclosed in the embodiments of this application;

[0020] Figure 2 This is a partial structural schematic diagram of the wire harness system disclosed in the embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the cable chain disclosed in the embodiments of this application in different states;

[0022] Figure 4 for Figure 3 Enlarged view of Part I;

[0023] Figure 5 for Figure 3 A structural diagram from another perspective;

[0024] Figure 6 for Figure 5 Enlarged view of Part II;

[0025] Figure 7 This is a schematic diagram of the structure of the chain segment disclosed in the embodiments of this application;

[0026] Figure 8 This is a schematic diagram of the structure of the link disclosed in an embodiment of this application from another perspective;

[0027] Figure 9 This is a schematic diagram of the structure of the link disclosed in the embodiment of this application from another perspective;

[0028] Figure 10 This is a schematic diagram of the structure of the first cable protection box disclosed in the embodiments of this application;

[0029] Figure 11 This is an exploded view of the first cable protection box disclosed in an embodiment of this application;

[0030] Figure 12 This is a schematic diagram of the structure of the first sub-box of the first cable protection box disclosed in the embodiments of this application;

[0031] Figure 13 This is a schematic diagram of the structure of the second sub-box of the first cable protection box disclosed in the embodiments of this application;

[0032] Figure 14 This is a schematic diagram illustrating the cooperation between the fixed end of the cable chain and the first cable guard box as disclosed in the embodiments of this application;

[0033] Figure 15 for Figure 1 Enlarged view of Part III;

[0034] Figure 16 This is a schematic diagram of the rotating component disclosed in the embodiments of this application;

[0035] Figure 17 This is a schematic diagram of the structure of the first sub-part of the rotating component disclosed in the embodiments of this application;

[0036] Figure 18 This is a schematic diagram of the structure of the second sub-part of the rotating component disclosed in the embodiments of this application;

[0037] Figure 19 This is a schematic diagram of the structure of the first box portion of the second cable protection box disclosed in an embodiment of this application;

[0038] Figure 20This is a schematic diagram of the structure of the second housing portion of the second cable protection box disclosed in an embodiment of this application;

[0039] Figure 21 This is a schematic diagram of the structure of the flexible protective sleeve disclosed in the embodiments of this application.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100-Drag chain, 110-Link link, 110a-First link, 110b-Second link, 111-Limiting groove, 1111-First sidewall, 1112-Second sidewall, 112-Limiting block, 1121-Matching groove, 1121a-Third sidewall, 1121b-Fourth sidewall, 113-Matching block, 114-First opening, 115-Second opening, 116-First chain plate, 117-Second chain plate, 1181-First pivot, 1182-Second pivot, 1182a-Second guide slope;

[0042] 200-First cable protection box, 210-Block, 220-First sub-box body, 230-Second sub-box body, 240-First wire channel, 250-First snap-fit ​​part, 260-Positioning part, 270-Connecting protrusion, 280-First mating part;

[0043] 300-Rotating component, 310-First sub-part, 311-First locking hole, 320-Second sub-part, 321-Second locking part, 322-Second mating part, 330-Second wire channel;

[0044] 400-Second junction box, 410-First box section, 411-Second locking hole, 420-Second box section, 421-Third locking section, 430-Third conductor channel, 440-Mounting slot;

[0045] 500 - Flexible protective sleeve, 510 - First connecting hole, 520 - Second connecting hole;

[0046] 600 - wire harness, 610 - first end, 620 - second end. Detailed Implementation

[0047] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0048] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0049] The wire harness protection device, wire harness system, and vehicle provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0050] Please refer to Figures 1 to 21 As shown, this application embodiment provides a wire harness protection device, including: a drag chain 100 for sleeved on the outside of the wire harness 600, the drag chain 100 including at least two links 110 that are hinged in sequence, the specific number of links 110 depending on actual needs.

[0051] One of two adjacent link 110 is provided with a limiting groove 111, and the other is provided with a limiting block 112. The limiting groove 111 has a first sidewall 1111 and a second sidewall 1112, and the limiting block 112 can rotate between the first sidewall 1111 and the second sidewall 1112. Optionally, one of any two adjacent link 110 may both be provided with a limiting groove 111, and the other may both be provided with a limiting block 112.

[0052] The limiting groove 111 is provided with a mating block 113, and the surface of the limiting block 112 facing the limiting groove 111 is provided with a mating groove 1121. The mating groove 1121 has a third side wall 1121a and a fourth side wall 1121b, and the mating block 113 can rotate between the third side wall 1121a and the fourth side wall 1121b.

[0053] During the relative rotation of two adjacent links 110, when the limiting block 112 abuts against the first side wall 1111, the mating block 113 abuts against the third side wall 1121a; when the limiting block 112 abuts against the second side wall 1112, the mating block 113 abuts against the fourth side wall 1121b.

[0054] The wire harness protection device provided in this embodiment includes a cable chain 100. The cable chain 100 is used to be sleeved on the outside of the wire harness 600. During the relative rotation of two adjacent links 110 of the cable chain 100, when the limiting block 112 abuts against the first side wall 1111 of the limiting groove 111, the mating block 113 abuts against the third side wall 1121a of the mating groove 1121. When the limiting block 112 abuts against the second side wall 1112 of the limiting groove 111, the mating block 113 abuts against the fourth side wall 1121b of the mating groove 1121. In this configuration, the rotation angle of two adjacent links 110 can be limited to a preset angle range by the cooperation of the limiting block 112 and the limiting groove 111, as well as the cooperation of the mating block 113 and the mating groove 1121. This allows the portion of the wire harness 600 corresponding to the two adjacent links 110 to move along a preset trajectory. In this way, the probability of the wire harness 600 twisting and bending as the car door slides can be reduced by using the wire harness protection device provided in this embodiment.

[0055] In actual use, the wire harness 600 is threaded within the cable chain 100. By rationally designing the relative rotation angle between two adjacent chain links 110, the movement trajectory of the wire harness 600 can be effectively constrained. This prevents damage to the wire harness 600 due to excessively large or small turning radii, thereby extending its service life and ensuring the reliability of its electrical connections with other components, reducing circuit failures. Furthermore, under the protection of the cable chain 100, the probability of the wire harness 600 failing is low, thus reducing maintenance costs and time.

[0056] In another embodiment, reference Figures 6 to 8 As shown, one of two adjacent chain links 110 has limiting grooves 111 on both opposite sides, and the other has limiting blocks 112 on both opposite sides. The limiting grooves 111 and limiting blocks 112 correspond one-to-one. One limiting groove 111 contains a mating block 113, and the surface of the corresponding limiting block 112 has a mating groove 1121. Optionally, opposite sides refer to opposite sides in a first direction, for example, the first direction being... Figure 8 The direction indicated by arrow B in the diagram, and the direction of the rotation axis of two adjacent links 110 is, for example, the same as the first direction.

[0057] In this embodiment, two adjacent chain links 110 cooperate through at least two limiting grooves 111 and at least two limiting blocks 112, which makes the cooperation between the two adjacent chain links 110 more reliable, thereby making the operation of the drag chain 100 more stable, and thus helping to extend the service life of the drag chain 100.

[0058] Furthermore, the solution provided in this embodiment only sets the mating block 113 in some of the limiting grooves 111 and sets the mating groove 1121 on the surface of some of the limiting blocks 112. This simplifies the structure of the link 110, thereby reducing the processing difficulty of the link 110 and reducing the scrap rate of the link 110.

[0059] Optionally, link 110 may be a non-metallic component, specifically, for example, made of nylon material. Non-metallic materials have lower hardness and are less likely to scratch the wire harness 600, thereby extending the service life of the wire harness 600. Additionally, link 110 may be a one-piece structure, or for example, an injection-molded component.

[0060] In other embodiments, each limiting groove 111 may be provided with a mating block 113. In this case, the surface of each limiting block 112 is provided with a mating groove 1121, and the mating block 113 corresponds one-to-one with the mating groove 1121. In addition, one of two adjacent chain links 110 may only have a limiting groove 111 on one side, and correspondingly, the other may only have a limiting block 112 on one side.

[0061] In another embodiment, reference Figures 7 to 9 As shown, at least two links 110 are provided with limiting grooves 111, and the included angles formed by the first sidewalls 1111 and the second sidewalls 1112 of the at least two limiting grooves 111 are different. The relative rotation angle between two adjacent links 110 mainly depends on the size of the included angles formed by the first sidewalls 1111 and the second sidewalls 1112 of the corresponding limiting grooves 111. The different included angles formed by the first sidewalls 1111 and the second sidewalls 1112 of the at least two limiting grooves 111 mean that the range of rotatable angles of the at least two links 110 are different.

[0062] In actual use, each link 110 is fitted onto the outside of the wire harness 600. Each link 110 corresponds to a different part of the wire harness 600. Since the movement trajectories of different parts of the wire harness 600 are often different, by reasonably designing the included angle between the first sidewall 1111 and the second sidewall 1112 of the limiting groove 111, at least two links 110 can rotate in different angle ranges, which can better adapt to the movement requirements of different parts of the wire harness 600.

[0063] Specifically, Figure 9 The included angle α in the diagram represents the included angle between the first sidewall 1111 and the second sidewall 1112 of the limiting groove 111. Furthermore, the third sidewall 1121a and the fourth sidewall 1121b of the mating groove 1121 are adapted to the included angle between the first sidewall 1111 and the second sidewall 1112 of the limiting groove 111, and... Figure 9 The included angle β in the figure represents the included angle between the third sidewall 1121a and the fourth sidewall 1121b of the mating groove 1121.

[0064] Optionally, each link 110 may be provided with a limiting groove 111 and a limiting block 112. In this way, by reasonably designing the included angle between the first sidewall 1111 and the second sidewall 1112 of each limiting groove 111, the rotatable angle range of each link 110 can be limited to a preset angle range, thereby better adapting to the movement requirements of different parts of the wire harness 600 and further reducing the probability of bending and twisting of the wire harness 600.

[0065] Furthermore, when at least three links 110 are provided with limiting grooves 111, the included angles formed by the first sidewall 1111 and the second sidewall 1112 of the limiting grooves 111 of some links 110 can be different. Of course, the included angles formed by the first sidewall 1111 and the second sidewall 1112 of the limiting grooves 111 of all links 110 can also be different, depending on the actual needs of the design.

[0066] In other embodiments, the included angle between the first sidewall 1111 and the second sidewall 1112 of each limiting groove 111 may also be the same.

[0067] As one specific implementation method, refer to Figures 7 to 9 As shown, each link 110 includes, for example, two opposing first chain plates 116 and two opposing second chain plates 117. Each second chain plate 117 is located between the two first chain plates 116 and is connected to both first chain plates 116. The two first chain plates 116 and the two second chain plates 117 together form a threading space, in which a portion of the wire harness 600 is threaded. Each first chain plate 116 is provided with a limiting groove 111 and a limiting block 112, and one of the first chain plates 116 is provided with a mating groove 1121 and a mating block 113.

[0068] In this embodiment, each link 110 has a basically the same shape, which reduces the difficulty of processing and designing the cable chain 100.

[0069] Of course, in other embodiments, the link 110 may also take other forms; this embodiment is merely an example. In other embodiments, the link 110 may have only a limiting groove 111 or only a limiting block 112. Specifically, the link 110 may have only a limiting block 112, and the number of limiting blocks 112 may be at least two, including a first limiting block and a second limiting block. Correspondingly, the two links 110 located on both sides of the link 110 may each have only a limiting groove 111. For ease of description, the limiting groove 111 on one link 110 is defined as the first limiting groove, and the limiting groove 111 on the other link 110 is defined as the second limiting groove. The first limiting block cooperates with the first limiting groove, and the second limiting groove cooperates with the second limiting block, thereby realizing the mutual cooperation between the links 110.

[0070] In another embodiment, reference Figure 3 as well as Figures 10 to 14 As shown, the wiring harness protection device also includes a first wire protection box 200. The cable chain 100 has a fixed end connected to the first wire protection box 200. The first wire protection box 200 is used to connect to the vehicle body. The first wire protection box 200 allows the first end 610 of the wiring harness 600 to pass through. The first wire protection box 200 is provided with a stop 210. At least a portion of the stop 210 is located on one side of the fixed end and on the swing path of the cable chain 100.

[0071] In this embodiment, the first cable protection box 200 serves as a connection medium between the fixed end of the cable chain 100 and the vehicle body, making it relatively convenient to connect the cable chain 100 to the vehicle body. Furthermore, a portion of the wiring harness 600 is located inside the first cable protection box 200, which protects the wiring harness 600 and thus extends its service life.

[0072] Furthermore, in this embodiment, the first cable protection box 200 is provided with a stop 210, at least a portion of which is located on one side of the fixed end and on the swing path of the cable chain 100. With this arrangement, the stop 210 can restrict the swing of the cable chain 100, thus better constraining the movement trajectory of the cable harness 600, further reducing the probability of twisting and bending of the cable harness 600.

[0073] In actual use, when opening and closing the car door, for example, first pull the door outward, and then slide the door horizontally to open it. Initially, the door is in the closed state, and the cable chain 100 is in, for example, the closed state. Figure 3 As indicated by the solid line, after the door is opened, the cable chain 100 switches to, for example, the desired state. Figure 3 The state indicated by the dashed line, and the direction of the door's translation, for example, is... Figure 3 The direction indicated by the middle arrow A.

[0074] Specifically, the stop 210 is, for example, a baffle, and the stop 210 is, for example, a plastic stop or a metal stop. It should be noted that in the embodiments of this application, there are no restrictions on the shape, size and material of the stop 210, and it can be designed according to actual needs.

[0075] In other embodiments, the wire harness protection device may not include the first wire harness box 200. Additionally, when the wire harness protection device includes the first wire harness box 200, the first wire harness box 200 may not have a stop 210.

[0076] In a further embodiment, reference is made to... Figures 10 to 14As shown, the first cable protection box 200 includes a first sub-box 220 and a second sub-box 230. The first sub-box 220 and the second sub-box 230 are detachably connected and together form a first wire channel 240, through which the first end 610 of the wire harness 600 can pass.

[0077] In this embodiment, the first sub-box 220 and the second sub-box 230 are detachably connected and together form a first wire channel 240, through which the first end 610 of the wire harness 600 can pass. This arrangement facilitates the disassembly and assembly of the first sub-box 220 and the second sub-box 230. When the first sub-box 220 and the second sub-box 230 are separated, placing a portion of the wire harness 600 between them and then connecting them allows the first end 610 of the wire harness 600 to pass through the first wire channel 240, reducing the difficulty of passing the first end 610 of the wire harness 600 through the first cable protection box 200. Furthermore, with this arrangement, if either the first sub-box 220 or the second sub-box 230 is damaged, only the damaged one needs to be replaced, without needing to replace the entire first cable protection box 200, thus reducing waste.

[0078] Furthermore, one of the first sub-box 220 and the second sub-box 230 is provided with a first latching part 250, and the other is provided with a positioning part 260. The first latching part 250 and the positioning part 260 are arranged opposite to each other. Each link 110 is provided with a first opening 114 and a second opening 115. Two adjacent links 110 are hinged through the first opening 114 and the second opening 115 of one of them. The link 110 located at the fixed end is the first link 110a, and the link 110 adjacent to the first link 110a is the second link 110b. The first link 110a and the second link 110b are hinged through the first opening 114 and the second opening 115 of the second link 110b. The first opening 114 of the first link 110a is positioned and engaged with the positioning part 260. A part of the first latching part 250 passes through the second opening 115 and is latched and engaged with the first link 110a.

[0079] In the actual assembly process, for example, the positioning part 260 is first inserted into the first opening 114 so that the positioning part 260 is positioned and engaged with the first opening 114. Then, a part of the first snap-fit ​​part 250 is inserted through the second opening 115 and engaged with the first chain link 110a, so that the fixed end of the drag chain 100 can be connected to the first cable protection box 200.

[0080] During the assembly process described above, the position of the first link 110a can be pre-positioned by the positioning part 260 engaging with the first opening 114. Once the position of the first link 110a is determined, the engagement of the second opening 115 with the first locking part 250 can be achieved relatively easily. Furthermore, the positioning part 260 and the first opening 114 can accurately position the first link 110a, thereby improving the assembly accuracy of the cable chain 100 and the first cable guard box 200.

[0081] In addition, the solution provided in this embodiment utilizes the first opening 114 and the second opening 115 on the link 110 to achieve the connection between the fixed end of the cable chain 100 and the first cable protection box 200. In this way, there is no need to add other structures to the cable chain 100 to achieve the connection between the fixed end of the cable chain 100 and the first cable protection box 200, thereby simplifying the structure of the cable chain 100 and reducing the processing difficulty of the cable chain 100.

[0082] Optionally, the first engaging portion 250 may include at least two teeth arranged sequentially along its circumference. During actual assembly, under the pressure of the inner wall of the second opening 115, the teeth approach each other and close together, thereby reducing the cross-sectional area of ​​the first engaging portion 250 in the axial direction perpendicular to the second opening 115. This allows the first engaging portion 250 to pass through the second opening 115. After the first engaging portion 250 passes through the second opening 115, the teeth move away from each other, so that a portion of each tooth engages with the first link 110a in the axial direction of the second opening 115, thereby achieving the engaging engagement between the first engaging portion 250 and the first link 110a.

[0083] Specifically, the first sub-box 220 is provided with a positioning part 260, which is a positioning post, for example. The second sub-box 230 is provided with a first snap-fit ​​part 250, and the first sub-box 220 and the second sub-box 230 are snap-fitted together to achieve a detachable connection between the two. The stop 210 mentioned above is provided on the second sub-box 230, for example.

[0084] Optionally, the first cable protection box 200 may be provided with a connecting protrusion 270, and the first end 610 of the cable harness 600 may be secured to the connecting protrusion 270 by a binding member. With this configuration, the first end 610 of the cable harness 600 is secured to the first cable protection box 200, thereby reducing the shaking of the cable harness 600, which further reduces the probability of the cable harness 600 twisting and bending. Specifically, the connecting protrusion 270 may be provided, for example, in the second sub-box 230.

[0085] In other embodiments, the first sub-box 220 and the second sub-box 230 may also be an integral structure. Alternatively, the first sub-box 220 and the second sub-box 230 may be connected by non-removable methods such as welding or gluing.

[0086] In another embodiment, reference Figures 15 to 20 As shown, the wire harness protection device also includes a rotating member 300 and a second wire protection box 400. The cable chain 100 has a movable end, which is connected to the rotating member 300. The rotating member 300 is rotatably connected to the second wire protection box 400. The second wire protection box 400 is used to connect to the vehicle door. The rotating member 300 is provided with a second wire channel 330, and the second wire protection box 400 is provided with a third wire channel 430. The second wire channel 330 and the third wire channel 430 are connected in sequence and can allow the second end 620 of the wire harness 600 to pass through in sequence. The first end 610 and the second end 620 of the wire harness 600 are the two ends in the extension direction of the wire harness 600, respectively.

[0087] In this embodiment, the rotating component 300 is rotatably connected to the second cable protection box 400. This allows the position of the rotating component 300 relative to the second cable protection box 400 to be flexibly adjusted. In actual use, the rotating component 300 rotates relative to the second cable protection box 400 as the vehicle door opens. With this design, the movable end of the cable chain 100 is connected to the rotating component 300. Because the position of the rotating component 300 relative to the second cable protection box 400 is flexibly adjustable, the requirements for deformation of the cable chain 100 itself are reduced. This simplifies the structure of the cable chain 100 and further reduces the probability of bending and twisting of the wiring harness 600.

[0088] Optionally, the link 110 at the movable end of the cable chain 100 is rotatably connected to the rotating member 300 to better accommodate the movement of the vehicle door. Specifically, each link 110 includes, for example, the first chain plate 116 and the second chain plate 117 mentioned above. The first chain plate 116 is provided with the first opening 114 mentioned above and a first pivot 1181. The second chain plate 117 is provided with the second opening 115 mentioned above and a second pivot 1182. The first pivot 1181 and the second pivot 1182 of one of two adjacent links 110 are respectively located in the first opening 114 and the second opening 115 of the other, thereby realizing the rotatable connection between the two adjacent links 110. The rotating component 300 has a first connecting portion and a second connecting portion. The first connecting portion has a third opening, and the second connecting portion has, for example, a fourth opening. The link 110 located at the movable end of the cable chain 100 is, for example, a third link. The first rotating shaft 1181 of the third link is, for example, located in the third opening, and the second rotating shaft 1182 of the third link is, for example, located in the fourth opening. That is, the first rotating shaft 1181 and the second rotating shaft 1182 on the link 110, which are used to realize the rotatable connection between adjacent links 110, are reused to realize the connection between the movable end of the cable chain 100 and the rotating component 300. With this arrangement, there is no need to add other structures to the cable chain 100 to realize the connection between the movable end of the cable chain 100 and the rotating component 300, thereby simplifying the structure of the cable chain 100 and reducing the processing difficulty of the cable chain 100.

[0089] Further, refer to Figure 7 and Figure 8 As shown, the first rotating shaft 1181 is provided with a first guide slope, and the second rotating shaft 1182 is provided with a second guide slope 1182a. In the actual assembly process, the first rotating shaft 1181 is guided and engaged with the first chain plate 116 through the first guide slope, and the second rotating shaft 1182 is guided and engaged with the second chain plate 117 through the second guide slope 1182a. This drives both the first chain plate 116 and the second chain plate 117 to undergo elastic deformation, causing them to move away from each other to avoid the first rotating shaft 1181 and the second rotating shaft 1182. The provision of the first guide slope and the second guide slope 1182a reduces the assembly difficulty of adjacent chain links 110 and simplifies the assembly process of the cable chain 100.

[0090] In other embodiments, the rotating member 300 may also be fixedly connected to the second cable guard box 400.

[0091] In a further embodiment, the rotating member 300 includes a first sub-part 310 and a second sub-part 320, which are detachably connected and together form a second wire channel 330. This arrangement facilitates the assembly and disassembly of the first sub-part 310 and the second sub-part 320. When the first sub-part 310 and the second sub-part 320 are separated, the second end 620 of the wire harness 600 can easily pass through the second wire channel 330, thereby reducing the assembly difficulty of the wire harness 600 and the rotating member 300. Furthermore, with this arrangement, if either the first sub-part 310 or the second sub-part 320 is damaged, only the damaged one needs to be replaced, thus reducing waste.

[0092] Specifically, the first sub-part 310 and the second sub-part 320 are connected by a snap-fit ​​mechanism, for example. Specifically, the first sub-part 310 is provided with a first snap hole 311, and the second sub-part 320 is provided with a second snap-fit ​​part 321. The second snap-fit ​​part 321 snaps into the first snap hole 311, thereby realizing the snap-fit ​​connection between the first sub-part 310 and the second sub-part 320.

[0093] In other embodiments, the first sub-part 310 and the second sub-part 320 may also be an integral structure, or the first sub-part 310 and the second sub-part 320 may be connected by a non-detachable method such as welding or gluing.

[0094] In a further embodiment, reference is made to... Figure 19 and Figure 20 As shown, the second cable protection box 400 includes a first box portion 410 and a second box portion 420, which are detachably connected and together form a third conductor channel 430. This arrangement facilitates the assembly and disassembly of the first box portion 410 and the second box portion 420. When the first box portion 410 and the second box portion 420 are separated, the second end 620 of the wire harness 600 can easily pass through the third conductor channel 430, thereby reducing the assembly difficulty of the wire harness 600 and the second cable protection box 400. Furthermore, with this arrangement, if either the first box portion 410 or the second box portion 420 is damaged, only the damaged one needs to be replaced, thus reducing waste.

[0095] Furthermore, the first box portion 410 and the second box portion 420 together form a mounting groove 440 and a mounting cavity, respectively. The mounting groove 440 is connected to the mounting cavity, and a portion of the rotating member 300 is rotatably located within the mounting groove 440, while another portion is rotatably located within the mounting cavity. With this arrangement, the rotating member 300 can be easily disassembled and assembled when the first box portion 410 and the second box portion 420 are separated, thereby reducing the assembly difficulty between the rotating member 300 and the second cable protection box 400.

[0096] Specifically, the first box portion 410 and the second box portion 420 are connected by a snap-fit ​​connection, for example. Specifically, the first box portion 410 is provided with a second snap hole 411, and the second box portion 420 is provided with a third snap-fit ​​portion 421. The third snap-fit ​​portion 421 is snapped into the second snap hole 411, thereby realizing the snap-fit ​​connection between the first box portion 410 and the second box portion 420.

[0097] In other embodiments, the first box portion 410 and the second box portion 420 may also be an integral structure, or the first box portion 410 and the second box portion 420 may be connected by a non-removable method such as welding or gluing.

[0098] In one specific implementation, at least one of the first conductor channel 240, the second conductor channel 330, and the third conductor channel 430 mentioned above has a cross-section that is, for example, circular or square. Taking the first conductor channel 240 as an example, the cross-section refers to the section perpendicular to the extending direction of the first conductor channel 240. The same applies to the second conductor channel 330 and the third conductor channel 430, which will not be described again here. It should be noted that the shape of the cross-section of the first conductor channel 240, the second conductor channel 330, and the third conductor channel 430 mainly depends on the shape of the cross-section of the wire harness 600. For example, the first conductor channel 240, the second conductor channel 330, and the third conductor channel 430 are all adapted to the shape of the cross-section of the wire harness 600.

[0099] In other embodiments, the cross-sections of the first conductor channel 240, the second conductor channel 330, and the third conductor channel 430 may also be of other shapes, which can be designed according to actual needs.

[0100] In another embodiment, the wiring harness protection device further includes a first wiring box 200, a second wiring box 400, and a flexible protective sleeve 500. The cable chain 100 has a fixed end and a movable end. The fixed end is connected to the first wiring box 200, which is used to connect to the vehicle body. The first wiring box 200 allows the first end 610 of the wiring harness 600 to pass through. The movable end is connected to the second wiring box 400, which is used to connect to the vehicle door. The second wiring box 400 allows the second end 620 of the wiring harness 600 to pass through. The flexible protective sleeve 500 is sleeved on the cable chain 100 and can be detachably connected to both the first wiring box 200 and the second wiring box 400.

[0101] In this embodiment, the flexible protective sleeve 500 protects the cable chain 100, thereby reducing its exposure to external influences and extending its service life. Furthermore, the flexible protective sleeve 500 is detachably connected to both the first cable protection box 200 and the second cable protection box 400, facilitating replacement of the flexible protective sleeve 500 and reducing the difficulty of inspection and maintenance of the cable chain 100. In addition, the flexible protective sleeve 500 contributes to a neater and more aesthetically pleasing overall appearance of the wire harness protection device, enhancing the user experience.

[0102] Furthermore, the flexible protective sleeve 500 is, for example, a sound-absorbing sleeve, specifically, a rubber sleeve. During the opening and closing of the car door, the flexible protective sleeve 500 deforms along with the door. During this process, the flexible protective sleeve 500 is prone to friction with other components, generating noise. By setting the flexible protective sleeve 500 as a sound-absorbing sleeve, this noise can be reduced, thereby improving the user experience.

[0103] Specifically, refer to Figure 10 , Figure 15 as well as Figure 21 As shown, the flexible protective sleeve 500 is snap-fitted to the first cable protection box 200 and the second cable protection box 400. More specifically, one end of the flexible protective sleeve 500 is provided with a first connecting hole 510, and the other end is provided with a second connecting hole 520. The first cable protection box 200 is provided with a first mating part 280, and the rotating part 300 is provided with a second mating part 322. The first mating part 280 is snap-fitted to the first connecting hole 510, and the second mating part 322 is snap-fitted to the second connecting hole 520. It should be noted that in this embodiment, the number of the first connecting hole 510, the second connecting hole 520, the first mating part 280, and the second mating part 322 is not limited, and can be designed according to actual needs.

[0104] In other embodiments, the wire harness protection device may also exclude the flexible protective sleeve 500.

[0105] This application also provides a wire harness system, which includes a wire harness 600 and the aforementioned wire harness protection device, wherein the cable chain 100 of the wire harness protection device is sleeved on the outside of the wire harness 600. This wire harness system has the same beneficial effects as the aforementioned wire harness protection device, and will not be described again here.

[0106] This application also provides a vehicle, which includes a body, a door, and the wiring harness system described above. The cable chain 100 of the wiring harness system has a fixed end and a movable end. The fixed end of the cable chain 100 is connected to the body, and the movable end of the cable chain 100 is connected to the door.

[0107] The vehicle has the same beneficial effects as the wiring harness system described above, which will not be repeated here. The vehicle is, for example, an automobile, in which the door and body slide together along the length of the body, and the first end 610 of the wiring harness 600 is electrically connected to the body, for example, and the second end 620 of the wiring harness 600 is electrically connected to the electronic devices on the door, for example, to ensure the normal operation of the electronic devices on the door.

[0108] It should be noted that the type of vehicle is not limited in this application embodiment. The wiring harness system provided in this application embodiment can adapt to the needs of different vehicle models and door designs, and can be designed according to actual needs.

[0109] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A wire harness protection device, characterized in that, include: A drag chain (100) for mounting outside a wire harness (600) includes at least two links (110) that are hinged in sequence. One of two adjacent links (110) is provided with a limiting groove (111) and the other is provided with a limiting block (112). The limiting groove (111) has a first sidewall (1111) and a second sidewall (1112). The limiting block (112) can rotate between the first sidewall (1111) and the second sidewall (1112). The limiting groove (111) is provided with a mating block (113), and the limiting block (112) has a mating groove (1121) on its surface facing the limiting groove (111). The mating groove (1121) has a third side wall (1121a) and a fourth side wall (1121b). The mating block (113) can rotate between the third side wall (1121a) and the fourth side wall (1121b). During the relative rotation of two adjacent links (110), when the limiting block (112) abuts against the first sidewall (1111), the mating block (113) abuts against the third sidewall (1121a); ​​when the limiting block (112) abuts against the second sidewall (1112), the mating block (113) abuts against the fourth sidewall (1121b).

2. The wire harness protection device according to claim 1, characterized in that, One of the two adjacent links (110) is provided with the limiting groove (111) on both opposite sides, and the other is provided with the limiting block (112) on both opposite sides. The limiting groove (111) and the limiting block (112) correspond one to one. One of the limiting grooves (111) is provided with the mating block (113), and the surface of the corresponding limiting block (112) is provided with the mating groove (1121).

3. The wire harness protection device according to claim 1, characterized in that, At least two of the chain links (110) are provided with the limiting groove (111), and the included angles formed by the first sidewall (1111) and the second sidewall (1112) of the at least two limiting grooves (111) are different.

4. The wire harness protection device according to claim 1, characterized in that, The wiring harness protection device further includes a first wire protection box (200), the cable chain (100) has a fixed end, the fixed end is connected to the first wire protection box (200), the first wire protection box (200) is used to connect to the vehicle body, the first wire protection box (200) allows the first end (610) of the wiring harness (600) to pass through, the first wire protection box (200) is provided with a stop (210), at least a portion of the stop (210) is located on one side of the fixed end and on the swing path of the cable chain (100).

5. The wire harness protection device according to claim 4, characterized in that, The first cable protection box (200) includes a first sub-box body (220) and a second sub-box body (230). The first sub-box body (220) and the second sub-box body (230) are detachably connected and together form a first wire channel (240). The first wire channel (240) allows the first end (610) of the wire harness (600) to pass through. One of the first sub-box body (220) and the second sub-box body (230) is provided with a first snap-fit ​​part (250), and the other is provided with a positioning part (260). The first snap-fit ​​part (250) and the positioning part (260) are arranged opposite to each other. Each link (110) is provided with a first opening (114) and a second opening (115). Two adjacent links (110) are hinged through the first opening (114) and the second opening (115) of one of them. The link (110) located at the end of the fixed end is the first link (110a), which is connected to the first sub-box body (220). The link (110) adjacent to the first link (110a) is the second link (110b). The first link (110a) and the second link (110b) are hinged through the first opening (114) and the second opening (115) of the second link (110b). The first opening (114) of the first link (110a) is positioned and engaged with the positioning part (260). A portion of the first snap-fit ​​part (250) passes through the second opening (115) of the first link (110a) and snaps and engages with the first link (110a).

6. The wire harness protection device according to claim 1, characterized in that, The wire harness protection device further includes a rotating component (300) and a second wire protection box (400). The cable chain (100) has a movable end, which is connected to the rotating component (300). The rotating component (300) is rotatably connected to the second wire protection box (400). The second wire protection box (400) is used to connect to the vehicle door. The rotating component (300) is provided with a second wire channel (330), and the second wire protection box (400) is provided with a third wire channel (430). The second wire channel (330) and the third wire channel (430) are connected in sequence and allow the second end (620) of the wire harness (600) to pass through in sequence.

7. The wire harness protection device according to claim 6, characterized in that, The rotating component (300) includes a first sub-part (310) and a second sub-part (320), which are detachably connected and together form the second wire channel (330). And / or, the second cable guard box (400) includes a first box portion (410) and a second box portion (420), the first box portion (410) and the second box portion (420) being detachably connected and together forming the third conductor channel (430).

8. The wire harness protection device according to claim 1, characterized in that, The wiring harness protection device further includes a first wire protection box (200), a second wire protection box (400), and a flexible protective sleeve (500). The cable chain (100) has a fixed end and a movable end. The fixed end is connected to the first wire protection box (200), which is used to connect to the vehicle body. The first wire protection box (200) allows the first end (610) of the wiring harness (600) to pass through. The movable end is connected to the second wire protection box (400), which is used to connect to the vehicle door. The second wire protection box (400) allows the second end (620) of the wiring harness (600) to pass through. The flexible protective sleeve (500) is fitted over the cable chain (100) and can be detachably connected to both the first wire protection box (200) and the second wire protection box (400).

9. A wire harness system, characterized in that, Includes a wire harness (600) and a wire harness protection device according to any one of claims 1-8, wherein the cable chain (100) of the wire harness protection device is sleeved on the wire harness (600).

10. A vehicle, characterized in that, The system includes a vehicle body, a door, and a wiring harness system as described in claim 9, wherein the cable chain (100) of the wiring harness system has a fixed end and a movable end, the fixed end of the cable chain (100) being connected to the vehicle body, and the movable end of the cable chain (100) being connected to the door.

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