Wire harness winding device, sunshade curtain assembly and vehicle

Abstract

The invention relates to a wire harness winding device, a sunshade curtain assembly and a vehicle, and can solve the working abnormal problem that a connecting wire harness of a light-emitting sunshade curtain in the prior art is prone to winding or clamping stagnation when curtain cloth is wound and unwound, so that the curtain cloth of the light-emitting sunshade curtain cannot be smoothly wound and unwound. The wire harness winding device comprises a shell, a rotor, a limiting mechanism and a wire harness, the shell is provided with a containing cavity and a first penetrating hole which are communicated with each other, part of the rotor penetrates through the first penetrating hole and can rotate relative to the shell around the axis of the first penetrating hole, and the limiting mechanism is arranged in the containing cavity and fixedly arranged relative to the shell. The wire harness is contained in the containing cavity and wound around the rotor and the limiting mechanism. The wire harness is limited between the two opposite wall faces of the shell in the axis direction of the first penetrating hole.

Description

Technical Field

[0001] This application relates to the field of vehicle manufacturing technology, and in particular to a wire harness winding device, a sunshade assembly, and a vehicle. Background Technology

[0002] Most existing car sunshades are currently electric, which achieve sunshade function by rolling up and down the curtain. In order to pursue a better visual effect, a luminous sunshade has been gradually developed.

[0003] In related technologies, the light-emitting methods of luminous sunshade curtains generally include two methods: using luminous curtain fabric or adding ambient lights. Both of these methods require the arrangement of relevant connecting wire harnesses and power supplies on the curtain fabric.

[0004] However, in related technologies, the connecting harness of the luminous sunshade curtain is prone to tangling or jamming when the curtain is rolled up and down, which in turn causes the curtain to malfunction and fail to roll up and down smoothly. Summary of the Invention

[0005] Based on this, it is necessary to provide a wiring harness winding device, a sunshade assembly, and a vehicle to address the problem that the connecting wire harness of the luminous sunshade curtain is prone to tangling or jamming during the winding and unwinding of the curtain, which leads to the abnormal operation of the curtain that cannot be smoothly wound and unwound.

[0006] On one hand, this application provides a wire harness winding device, the wire harness winding device comprising:

[0007] The housing has a cavity and a first through hole that are interconnected;

[0008] A rotor, a portion of which passes through the first through hole and is rotatable relative to the housing about the axis of the first through hole;

[0009] A limiting mechanism is disposed within the cavity and fixedly disposed relative to the housing;

[0010] A wire harness, which is housed within the cavity and wound around the rotor and the limiting mechanism, wherein the upper limit of the wire harness in the axial direction of the first through hole is located between two opposing walls of the housing.

[0011] In use, the wire harness winding device described in this application allows the rotor to rotate relative to the housing around the axis of the first perforation. This rotation causes the portion of the wire harness wound on the rotor to rotate in either direction, increasing or decreasing the number of winding turns. This allows the wire harness to be tightened or loosened within the limited space of the cavity, thus preventing interference between the wire harness and the external structure of the cavity and reducing tangling or jamming. Furthermore, by positioning the upper limit of the wire harness along the axial direction of the first perforation between two opposing walls of the housing, the wire harness can only be arranged in a layered manner, tightening or loosening in the radial direction of the cavity. This maintains the orderliness of the wire harness arrangement and reduces the problem of tangling and disorder. Furthermore, the wire harness winding device described in this application is also provided with a limiting mechanism, which enables the wire harness to be wound around the limiting mechanism in a preset winding direction, thereby making the wire harness not limited to the winding method of sequentially stacking around the rotor, improving the freedom of the wire harness arrangement in the cavity, and allowing the wire harness to obtain a larger tightening or loosening space in the radial direction of the cavity, thus further reducing the problem of wire harness tangling or jamming.

[0012] In one embodiment, the limiting mechanism includes a tensioning assembly arranged about the axis of the first perforation, and the wiring harness includes a first coil and a second coil connected to each other, the first coil being wound around the rotor and the second coil being wound around the outer peripheral surface of the tensioning assembly away from the rotor.

[0013] In one embodiment, the tensioning assembly includes a guide structure and a first tensioning structure, the guide structure and the first tensioning structure being spaced apart and forming a groove, and the portion of the first coil connected to the second coil passing through and confined within the groove.

[0014] In one embodiment, the tensioning assembly includes a first tensioning wheel and a plurality of second tensioning wheels. The first tensioning wheel is configured as the first tensioning structure. The first tensioning wheel and the plurality of second tensioning wheels are distributed at intervals around the axis of the first through hole. The second coil is wound on the outer peripheral surface of the first tensioning wheel and each of the second tensioning wheels away from the rotor.

[0015] In one embodiment, the tensioning assembly includes a first tensioning wheel and at least one elastic mechanism. The first tensioning wheel is configured as the first tensioning structure. The first tensioning wheel and the elastic mechanism are distributed at intervals around the axis of the first perforation. The second coil is sequentially wound around the first tensioning wheel and the elastic mechanism on the outer peripheral surface away from the rotor. The elastic mechanism can undergo elastic deformation along the radial direction of the cavity.

[0016] In one embodiment, the first tensioning wheel includes a fixed wheel and a support wheel, the support wheel being rotatably fitted onto the fixed wheel.

[0017] In one embodiment, the elastic mechanism includes a mounting frame and an elastic element, the elastic element being mounted on the mounting frame, and the wire harness being capable of compressing the elastic element radially inward toward the cavity.

[0018] In one embodiment, the elastic element includes a first plug pin, an elastic body, and a second plug pin that are connected to each other, and the mounting frame includes a first plug slot and a second plug slot that are spaced apart, wherein the first plug pin and the second plug pin are respectively movably plugged into the first plug slot and the second plug slot.

[0019] In one embodiment, the first coil and the second coil are wound in opposite directions.

[0020] In one embodiment, the limiting mechanism includes a plurality of limiting blocks, which are spaced apart around the axis of the first through hole and are arranged radially between the first coil and the second coil along the cavity.

[0021] In one embodiment, the rotor includes a connecting portion and a winding portion along its axial direction. The winding portion is inserted into the first through hole and placed inside the cavity, while the connecting portion is placed outside the cavity and is used to connect an external rotating shaft.

[0022] In one embodiment, the connecting portion is provided with a threading hole, and one end of the wire harness passes through the threading hole from the cavity and exits the connecting portion.

[0023] In one embodiment, the housing has a power input port along its circumference, the power input port is interconnected with the cavity, and the other end of the wire harness passes through the power input port from inside the cavity.

[0024] In one embodiment, the winding portion includes a winding body and a wire clamp, the wire harness includes a fitting portion that fits against the winding body, and the wire clamp is used to press against the fitting portion and fix the fitting portion relative to the winding body.

[0025] In one embodiment, the housing includes a first cavity and a second cavity, the first cavity and the second cavity being detachably connected, a portion of the rotor passing through the first through hole from the side of the first cavity away from the second cavity, and the side of the second cavity away from the first cavity being provided with a connecting structure for connecting a fixed seat of an external vehicle.

[0026] On the other hand, this application provides a sunshade assembly including the above-mentioned wire harness winding device. The sunshade assembly also includes a fixing seat and a roller. One side of the housing is connected to the fixing seat, and the end of the roller is connected to the rotor on the other side of the housing. The roller can drive the rotor to rotate forward or in reverse.

[0027] In another aspect, this application provides a vehicle that includes the aforementioned wiring harness retraction device or the aforementioned sunshade assembly. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the wire harness winding device in one embodiment of this application.

[0029] Figure 2 for Figure 1 An exploded view of the wire harness winding device shown.

[0030] Figure 3 This is a schematic diagram of the structure of a sunshade assembly in one embodiment of this application.

[0031] Figure 4 for Figure 3 The diagram shows a partial structural schematic of the sunshade assembly.

[0032] Figure 5 This is a schematic diagram of the assembly of the limiting mechanism and the wire harness in a wire harness winding device according to an embodiment of this application.

[0033] Figure 6 This is a schematic diagram of the limiting mechanism of the wire harness winding device in one embodiment of this application.

[0034] Figure 7 This is a schematic diagram of the limiting mechanism of the wire harness winding device in another embodiment of this application.

[0035] Figure 8 This is a schematic diagram of the rotor structure of the wire harness winding device in one embodiment of this application.

[0036] Figure 9 This is a schematic diagram of the assembly of the rotor and the wire harness in a wire harness winding device according to an embodiment of this application.

[0037] Figure 10 For this application Figure 9 A cross-sectional view of the wire harness winding device shown.

[0038] Figure 11 This is a schematic diagram of the structure of the wire harness in the cavity of the wire harness winding device in one embodiment of this application.

[0039] Explanation of icon numbers

[0040] 10. Sunshade curtain assembly; 11. Wire harness winding device; X, radial direction; 12. Fixing base; 13. Roller; 14. Curtain fabric; 100. Housing; 100a. Cavity; 100b. First through hole; 100c. Guide groove; L. Axis of the first through hole; 110. First cavity; 111. First snap-fit ​​structure; 112. First limiting structure; 120. Second cavity; 121. Connecting structure; 122. Second snap-fit ​​structure; 123. Second limiting structure; 130. Power input port; 200. Rotor; 210. Connecting part; 211. Wire hole; 220. Winding part; 221. Winding body; 222. Wire clip; 300. Limiting Positioning mechanism; 310, tensioning assembly; 301, first tensioning structure; 302, fixed wheel; 303, support wheel; 311, first tensioning wheel; 312, second tensioning wheel; 313, elastic mechanism; 3131, mounting frame; 3131a, first insertion slot; 3131b, second insertion slot; 3132, elastic element; 3132a, first insertion pin; 3132b, elastic body; 3132c, second insertion pin; 310a, outer peripheral surface; 314, guide structure; 314a, wire groove; 320, limiting block; 400, wire harness; 410, first coil; 411, fitting part; 420, second coil; 500, snap ring. Detailed Implementation

[0041] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0042] In the description of this application, it should be understood that if terms such as "length", "width", "thickness", "upper", "lower", "top", "bottom", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] Please see Figure 1 , Figure 2 and Figure 5 One embodiment of this application provides a wire harness winding device 11, which may include a housing 100, a rotor 200, a limiting mechanism 300, and a wire harness 400. The housing 100 has a cavity 100a and a first through hole 100b that are mutually connected. A portion of the rotor 200 passes through the first through hole 100b and is rotatable relative to the housing 100 about the axis L of the first through hole 100b. The limiting mechanism 300 is disposed in the cavity 100a and fixed relative to the housing 100. The wire harness 400 is housed in the cavity 100a and wound around the rotor 200 and the limiting mechanism 300. The upper limit of the wire harness 400 in the direction of the axis L of the first through hole 100b is located between two opposite walls of the housing 100.

[0045] In use, the rotor 200 of the wire harness winding device 11 described in this application can rotate relative to the housing 100 around the axis L of the first through hole 100b, thereby causing the portion of the wire harness 400 wound on the rotor 200 to rotate in the direction of increasing or decreasing the number of winding turns. This allows the wire harness 400 to be tightened or loosened within the limited space of the cavity 100a, thereby avoiding interference between the wire harness 400 and the external structure of the cavity 100a, and reducing the tangling or jamming of the wire harness 400. In addition, the wire harness winding device 11 described in this application, by positioning the upper limit of the wire harness 400 in the axis L direction of the first through hole 100b between two opposite walls of the housing 100, allows the wire harness 400 to be stacked and tightened or loosened and expanded only in the radial direction X of the cavity 100a. This maintains the orderliness of the arrangement of the wire harness 400, thereby reducing the problem of tangling and disorder of the wire harness 400 itself. Furthermore, the wire harness winding device 11 described above in this application is also provided with a limiting mechanism 300, which enables the wire harness 400 to be wound around the limiting mechanism 300 in a preset winding direction. This allows the wire harness 400 to be not limited to the winding method of sequentially stacking around the rotor 200, thereby increasing the degree of freedom of the arrangement of the wire harness 400 in the cavity 100a. This allows the wire harness 400 to obtain a larger tightening or loosening space in the radial X direction of the cavity 100a, thereby further reducing the problem of the wire harness 400 getting tangled or stuck.

[0046] Optionally, the aforementioned wire harness 400 may be implemented as a long strip structure, but is not limited to.

[0047] Correspondingly, the upper limit of the aforementioned wire harness 400 in the axial direction L of the first through hole 100b is located between two opposing walls of the housing 100. This means that the two sides of the wire harness 400 in its height direction are respectively confined to the two walls of the housing 100, thus ensuring that the wound wire harness 400 can maintain a sequentially stacked arrangement. Understandably, when the wire harness 400 is wound, it is roughly cylindrical. Correspondingly, the aforementioned two sides of the wire harness 400 in its height direction being confined between two walls of the housing 100 can mean that the top and bottom surfaces of the cylinder are respectively confined to the two walls of the housing 100.

[0048] It is worth noting that the wire harness 400 of the wire harness winding device 11 described above in this application is tightened and gathered or loosened and expanded within the limited space of the cavity 100a, which also helps to reduce the space occupied by the wire harness 400, optimize the spatial arrangement, reduce the interference between the wire harness 400 and the outside world, and increase the service life of the wire harness 400.

[0049] Please continue reading. Figure 1 and Figure 2 In some embodiments, the housing 100 may include a first cavity 110 and a second cavity 120. The first cavity 110 and the second cavity 120 are detachably connected. A portion of the rotor 200 passes through a first through hole 100b from the side of the first cavity 110 opposite to the second cavity 120. The side of the second cavity 120 opposite to the first cavity 110 is provided with a connecting structure 121 for connecting a mounting bracket 12 of an external vehicle.

[0050] Specifically, please refer to Figure 2 Both the first cavity 110 and the second cavity 120 are provided with a first through hole 100b. The first cavity 110 and the second cavity 120 can be assembled in a direction aligned with each other along the axis L of their respective first through holes 100b. Figure 11 As shown, after assembly, the housing 100 forms a cavity 100a for accommodating the limiting mechanism 300 and the wire harness 400. Understandably, the limiting mechanism 300 and the wire harness 400 can be pre-assembled on the first cavity 110 or the second cavity 120 before assembling the first cavity 110 and the second cavity 120, which can improve the ease of assembly of the wire harness winding device 11.

[0051] For example, please refer to Figure 2When assembling the above-mentioned wire harness winding device 11, part of the rotor 200 can first pass through the first through hole 100b of the first cavity 110 on one side, so that the wire harness 400 can be wound on the other side of the first cavity 110. Then, the limiting mechanism 300 can be engaged with the wire harness 400 along the other side of the first cavity 110. Finally, the first cavity 110 and the second cavity 120 are assembled. This installation process is simple and convenient.

[0052] In some embodiments, please refer to Figure 1 and Figure 2 The wire harness winding device 11 may also include a retaining ring 500. When the rotor 200 passes through the first through hole 100b of the housing 100, the end of the rotor 200 extends out of the housing 100, and the retaining ring 500 engages with the extended portion of the rotor 200 relative to the housing 100.

[0053] Alternatively, please continue reading Figure 1 and Figure 2 The first cavity 110 and the second cavity 120 are respectively provided with a first snap-fit ​​structure 111 and a second snap-fit ​​structure 122 along their respective circumferential directions. The first snap-fit ​​structure 111 and the second snap-fit ​​structure 122 are detachably snap-fitted together, which improves the ease of assembly of the first cavity 110 and the second cavity 120.

[0054] Optionally, the first snap-fit ​​structure 111 and the second snap-fit ​​structure 122 may be configured as a snap fastener and the other as a protrusion, etc.

[0055] Alternatively, please continue reading Figure 1 and Figure 2 The first cavity 110 and the second cavity 120 are respectively provided with a first limiting structure 112 and a second limiting structure 123 along their respective circumferential directions. The first limiting structure 112 and the second limiting structure 123 abut against each other and limit each other along the circumferential direction of the shell 100 and the axis L direction of the first through hole 100b, which can improve the assembly stability of the first cavity 110 and the second cavity 120.

[0056] Optionally, the first limiting structure 112 and the second limiting structure 123 may be configured as a limiting protrusion and the other as a limiting groove, etc.

[0057] Please combine Figure 3 and Figure 4 As shown, correspondingly, this application also provides a sunshade assembly 10, which may include a fixing base 12, a roller 13, and the aforementioned wire harness winding device 11. One side of the housing 100 is connected to the fixing base 12, and the end of the roller 13 is connected to the rotor 200 on the other side of the housing 100. The roller 13 can drive the rotor 200 to rotate forward or in reverse.

[0058] Based on the above embodiments of this application, please refer to Figure 4 The wire harness winding device 11 can be connected to the fixed base 12 via the connecting structure 121. Optionally, the connecting structure 121 can be connected to the fixed base 12 by bolt fixing. The end of the roller 13 can be connected to the rotor 200 on the side of the housing 100 away from the fixed base 12. Understandably, the axis of the roller 13 is on the same straight line as the axis L of the first through hole 100b. Therefore, the forward and reverse rotation of the rotor 200 can correspondingly drive the roller 13 to rotate forward and reverse around its own axis. Furthermore, the roller 13 can drive the curtain 14 of the sunshade assembly 10 to perform winding or unwinding operations. The structure is simple and reliable.

[0059] Please continue reading. Figure 3 The sunshade assembly 10 may also include a curtain 14 wound around a roller 13. Optionally, the curtain 14 may be configured as a light-emitting curtain 14 for electrical connection with the wiring harness 400.

[0060] The sunshade assembly 10 of this application, by connecting to the wire harness winding device 11 of this application, allows the wire harness 400 to be wound synchronously within the cavity 100a during the movement of the curtain 14 with the roller 13. This avoids problems such as tangling or jamming of the wire harness 400 that could cause abnormal operation of the curtain 14, thus improving the operational reliability of the sunshade assembly 10.

[0061] Please see Figure 5 In some embodiments, the limiting mechanism 300 may include a tensioning component 310, which is arranged around the axis L of the first through hole 100b. The wire harness 400 may include a first coil 410 and a second coil 420 connected to each other. The first coil 410 is wound around the rotor 200, and the second coil 420 is wound around the outer peripheral surface 310a of the tensioning component 310 facing away from the rotor 200. It should be noted that the diameter of the outer peripheral surface 310a of the tensioning component 310 in the radial X direction of the cavity 100a is larger than the diameter of the rotor 200. This allows the wire harness 400 to be wound on the rotor 200 for a period of time before extending to the outer peripheral surface 310a of the tensioning component 310 for winding, so that the wire harness 400 forms the first coil 410 and the second coil 420 connected to each other.

[0062] Specifically, by setting the tensioning component 310, this application can first divide the wire harness 400 into two parts: the first coil 410 and the second coil 420. In this way, during the forward and reverse rotation of the rotor 200, the rotor 200 can only drive the first coil 410 to perform tightening or loosening operations, while the second coil 420 is not directly driven to rotate by the rotor 200, thereby reducing the burden on the rotor 200 to drive the wire harness 400 to rotate.

[0063] For example, according to this design, the user can configure the curtain 14 of the sunshade assembly 10 to be at the starting or ending position of the winding or unwinding operation when the first coil 410 is fully tightened. This can prevent the curtain 14 from continuing to wind or unwind when the first coil 410 is fully tightened, thus preventing the wire harness 400 from being pulled and damaged.

[0064] Furthermore, when the curtain 14 of the aforementioned sunshade assembly 10 moves from the aforementioned starting point to the ending point, or from the aforementioned ending point to the starting point, the first coil 410 correspondingly switches from the aforementioned fully tightened state to the loose state. Subsequently, the first coil 410 can rotate with the rotor 200 and expand and loosen in the gap between the first coil 410 and the second coil 420. The second coil 420 is not directly driven to rotate by the rotor 200, which helps to reduce the constraint effect of the wiring harness 400 on the rotation of the rotor 200 and improve the smoothness of the rotor 200's rotation.

[0065] Adaptively, the theoretical rotational stroke of the first coil 410 is equal to the winding length of the first coil 410 on the rotor 200. This theoretical rotational stroke can be configured to be greater than or equal to the total length of the movement stroke of the curtain 14 of the sunshade assembly 10. This ensures that the curtain 14 has completed its entire movement stroke before the first coil 410 is fully released, thereby ensuring that the second coil 420 does not need to participate in the rotation process with the rotor 200. This reduces the burden on the rotor 200 to drive the wire harness 400 to rotate, and improves the smoothness of the rotor 200's rotation.

[0066] Please continue reading. Figure 5 In some embodiments, the limiting mechanism 300 may include a plurality of limiting blocks 320, such as having at least two or more limiting blocks 320, or having two, three, four or five limiting blocks 320, etc. The plurality of limiting blocks 320 are distributed at intervals around the axis L of the first through hole 100b, and the limiting blocks 320 are arranged between the first coil 410 and the second coil 420 along the radial direction X of the cavity 100a.

[0067] Specifically, during the rotation of the first coil 410 with the rotor 200, the first coil 410 can expand or contract within the radial X gap between the first coil 410 and the second coil 420. Therefore, the provision of multiple limiting blocks 320 in this application helps to limit the expansion and contraction process of the first coil 410, thereby restricting the expansion range of the first coil 410 and reducing the problem of large-area diffusion and tangling of the wire harness 400 within the cavity 100a.

[0068] Optionally, the multiple limiting blocks 320 can be evenly distributed around the axis L of the first through hole 100b, which can improve the balance of limiting the first coil 410.

[0069] Please see Figures 5 to 7 In some embodiments, the tensioning assembly 310 may further include a guide structure 314 and a first tensioning structure 301. The guide structure 314 and the first tensioning structure 301 are spaced apart and form a wire groove 314a. The portion of the first coil 410 connected to the second coil 420 passes through and is confined in the wire groove 314a. This helps to improve the limiting effect on the portion of the first coil 410 connected to the second coil 420, thereby dividing the first coil 410 and the second coil 420 into two relatively independent parts and optimizing the distribution of the wire harness 400.

[0070] Correspondingly, please refer to Figure 5 In some embodiments, the tensioning assembly 310 may include a first tensioning wheel 311 and at least one elastic mechanism 313. The first tensioning wheel 311 is configured as a first tensioning structure 301. The first tensioning wheel 311 and the elastic mechanism 313 are spaced apart around the axis L of the first through hole. The second coil 420 is sequentially wound around the first tensioning wheel 311 and the elastic mechanism 313 on the outer peripheral surface 310a of the rotor 200 away from the rotor 200. The elastic mechanism 313 can undergo elastic deformation along the radial direction X of the cavity 100a. Specifically, in this embodiment, when the first coil 410 is driven to rotate in the direction of tightening and gathering by the rotor 200, the first coil 410 can pull the second coil 420 inward in the direction of tightening and gathering, thereby enabling the second coil 420 to compress the elastic mechanism 313 inward. Therefore, the inward compression of the elastic mechanism 313 can provide space for the tightening and gathering movement of the second coil 420, avoiding pulling on the second coil 420 and improving the protection of the wire harness 400.

[0071] It is worth noting that, in this embodiment, due to the provision of the elastic mechanism 313, the first coil 410 and the second coil 420 can always remain in a state of mutual tension, which helps to improve the constraint effect on the winding state of the wire harness 400 and prevent problems such as loosening, tangling or jamming of the wire harness 400.

[0072] Specifically, such as Figure 5From the perspective shown, when the rotor 200 rotates counterclockwise, the first coil 410 pulls the second coil 420, thus allowing the second coil 420 to compress the elastic mechanism 313 inward, thereby maintaining a state of mutual tension between the first coil 410 and the second coil 420. When the rotor 200 rotates clockwise, the first coil 410 rotates in the direction of expansion and contraction, thus reducing the pulling force of the first coil 410 on the second coil 420. This allows the elastic mechanism 313 to rebound outward, causing the diameter of the second coil 420 to expand under the rebound action of the elastic mechanism 313. The second coil 420, in turn, pulls the first coil 410 tighter, thus maintaining a state of mutual tension between the first coil 410 and the second coil 420.

[0073] Optionally, such as Figure 5 and Figure 7 As shown, the elastic mechanism 313 may have at least one or more, such as one, two, three or four elastic mechanisms 313.

[0074] Preferably, the multiple elastic mechanisms 313 can be evenly distributed along the axis L around the first through hole 100b in coordination with the first tensioning wheel 311, thereby improving the balance of the support of the multiple elastic mechanisms 313 on the wire harness 400.

[0075] Please continue reading. Figure 7 In some embodiments, the elastic mechanism 313 may include a mounting frame 3131 and an elastic element 3132. The elastic element 3132 is mounted on the mounting frame 3131. The wire harness 400 can compress the elastic element 3132 in the radial X direction of the cavity 100a, thereby improving the support effect on the wire harness 400 through the elastic action of the elastic element 3132.

[0076] Please continue reading. Figure 7 In some embodiments, the elastic element 3132 may include a first plug pin 3132a, an elastic body 3132b, and a second plug pin 3132c that are interconnected. The mounting frame 3131 may include a first plug groove 3131a and a second plug groove 3131b that are spaced apart. The first plug pin 3132a and the second plug pin 3132c are respectively movably inserted into the first plug groove 3131a and the second plug groove 3131b. The wire harness 400 is attached to the surface of the elastic body 3132b and can compress the elastic body 3132b in the radial X direction of the cavity 100a. The structure is simple and reliable.

[0077] Specifically, such as Figure 7As shown, when the second coil 420 of the wire harness 400 is attached to the surface of the elastic body 3132b and compresses the elastic body 3132b in the radial X direction towards the cavity 100a, the first plug pin 3132a and the second plug pin 3132c can slide in the first plug groove 3131a and the second plug groove 3131b respectively in a direction away from each other. When the pressure of the second coil 420 on the elastic body 3132b decreases, the first plug pin 3132a and the second plug pin 3132c can slide in the first plug groove 3131a and the second plug groove 3131b respectively in a direction closer to each other, and the elastic body 3132b arches away from the rotor 200 to maintain the supporting force on the second coil 420.

[0078] Correspondingly, please refer to Figure 6 In some other embodiments, the tensioning assembly 310 may include a first tensioning wheel 311 and a plurality of second tensioning wheels 312. The first tensioning wheel 311 is configured as a first tensioning structure 301. The first tensioning wheel 311 and the plurality of second tensioning wheels 312 are distributed at intervals around the axis L of the first through hole. The second coil 420 is wound on the outer peripheral surface 310a of the first tensioning wheel 311 and each of the second tensioning wheels 312 away from the rotor 200.

[0079] According to the above embodiments of this application, the wire groove 314a can be configured as an arc-shaped groove with the center of the first tensioning wheel 311 as the arc center, and the portion of the first coil 410 connected to the second coil 420 passes through and is confined in the wire groove 314a.

[0080] In some embodiments, please refer to Figure 5 The first coil 410 and the second coil 420 can be wound in opposite directions, which helps to improve the mutual tension between the first coil 410 and the second coil 420.

[0081] like Figure 5 As shown, the first coil 410 can be configured to be wound clockwise on the rotor 200. After the end of the first coil 410 extends and is confined in the wire groove 314a, the second coil 420 can be wound counterclockwise on the outer peripheral surface 310a of the tensioning assembly 310. This achieves the effect that the two ends of the part where the first coil 410 and the second coil 420 are connected exert opposite pulling effects on the first coil 410 and the second coil 420, which helps to improve the mutual tensioning effect of the first coil 410 and the second coil 420.

[0082] Please see Figure 2 In some embodiments, the first tensioning wheel 311 may include a fixed wheel 302 and a support wheel 303, with the support wheel 303 rotatably fitted onto the fixed wheel 302.

[0083] Specifically, the aforementioned support wheel 303 is used to allow the wire harness 400 to fit and be tensioned, and can rotate relative to the fixed wheel 302, thereby improving the smoothness of the tensioning process of the wire harness 400.

[0084] Of course, in some other embodiments, the second tensioning wheel 312 may also be configured to include a fixed wheel 302 and a support wheel 303 as described above, wherein the support wheel 303 is rotatably sleeved on the fixed wheel 302, which will not be described in detail here.

[0085] It is worth noting that, in addition to the embodiments described above, users can also design the arrangement of the tensioning component 310 of the limiting mechanism 300 according to actual needs, so that the wire harness 400 can be arranged in a preset winding direction in the radial X direction within the cavity 100a, which is not limited here. For example, in addition to the first coil 410 and the second coil 420, the wire harness 400 can also have a third coil or a fourth coil or even more coils of different diameters distributed in the radial X direction of the cavity 100a, or the wire harness 400 can be arranged along an irregular path in the radial X direction of the cavity 100a, etc. It should be noted that as long as it can be ensured that the wire harness 400 is tightened and gathered or loosened and expanded in the preset winding direction, and the wire harness 400 does not have problems such as tangling or jamming, this application does not limit the arrangement path of the wire harness 400.

[0086] Please combine Figure 1 and Figure 8 As shown, in some embodiments, the rotor 200 may include a connecting portion 210 and a winding portion 220 along its axial direction. The winding portion 220 is inserted into the first through hole 100b and placed in the cavity 100a. The connecting portion 210 is placed outside the cavity 100a and is used to connect an external rotating shaft.

[0087] Please see Figure 3 and Figure 4 It should be noted that the rotating shaft can be, but is not limited to, configured as the roller 13 of the sunshade assembly 10. In this way, the rotation of the drive rotor 200 can drive the rotation of the roller 13, thereby realizing the rolling up or unrolling process of the curtain 14 of the sunshade assembly 10. Of course, in other application scenarios, such as related devices with the same wiring harness 400 and rotating shaft, the connecting part 210 of this application can also be connected to the rotating shaft. Therefore, the wiring harness winding device 11 of this application can be, but is not limited to, applicable to the sunshade assembly 10 of a vehicle.

[0088] Optionally, the aforementioned connecting part 210 and the rotating shaft can be connected by means of snap-fit ​​or pin-fit, but this is not limited to the connection method.

[0089] It is worth noting that the diameter of the connecting part 210 is larger than the diameter of the first through hole 100b, so that the connecting part 210 can be snapped onto the outside of the housing 100, so that the connecting part 210 can be used to connect with the rotating shaft on the outside.

[0090] Please continue reading. Figure 8 , Figure 9 and Figure 10 In some embodiments, the connecting portion 210 may be provided with a wire hole 211, through which one end of the wire harness 400 passes from the cavity 100a through the wire hole 211 and exits the connecting portion 210, thereby enabling an electrical connection between the wire harness 400 and the electrical device. It should be noted that the electrical device may be, but is not limited to, a light-emitting curtain 14 of the sunshade assembly 10.

[0091] Please see Figure 11 In some embodiments, the housing 100 may be provided with a power input port 130 along its circumference. The power input port 130 is interconnected with the cavity 100a. The other end of the wire harness 400 passes through the cavity 100a and is inserted into the power input port 130. The other end of the wire harness 400 is used for electrical connection with a power source.

[0092] Please continue reading. Figure 11 In some embodiments, the housing 100 may be provided with a guide groove 100c, which connects the power input port 130 and the cavity 100a. The end of the wire harness 400 after being wound on the second coil 420 passes through the guide groove 100c and enters the power input port 130.

[0093] In some embodiments, please continue reading Figure 8 , Figure 9 and Figure 10 The winding portion 220 may include a winding body 221 and a wire clip 222. The wire harness 400 includes a fitting portion 411, which is fitted to the winding body 221. The wire clip 222 is used to press against the fitting portion 411 and fix the fitting portion 411 relative to the winding body 221.

[0094] Specifically, the wire clip 222 is used to secure the wire harness 400 to the winding body 221. For example... Figure 10 As shown, the aforementioned bonding portion 411 can refer to the initial few turns of the wire harness 400 wound on the winding body 221, such as one or two turns. After the bonding portion 411 completes the winding, the wire clamp 222 presses the wire harness 400 against the winding body 221 to fix it in place. Then, the wire harness 400 continues to be wound on the winding body 221 after being fixed by the wire clamp 222. This achieves the connection and fixation of the wire harness 400 relative to the rotor 200 and the winding arrangement, preventing the wire harness 400 from loosening.

[0095] Optionally, the aforementioned wire clip 222 may, but is not limited to, use snap-fit ​​or snap-fit ​​methods to fix the fitting part 411 relative to the winding body 221.

[0096] According to another aspect of this application, this application also provides a vehicle that may include the above-described wiring harness retraction device 11 or the above-described sunshade assembly 10.

[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A wiring harness retraction device characterized by, The wire harness winding device comprises: a housing provided with a cavity and a first through hole in communication with each other; a rotor, part of which is arranged through the first through hole and is rotatably arranged about the axis of the first through hole relative to the housing; a limiting mechanism, which is arranged in the cavity and is fixedly arranged relative to the housing; a wire harness, which is accommodated in the cavity and is arranged around the rotor and the limiting mechanism, and is limited between the opposite two wall surfaces of the housing in the axial direction of the first through hole.

2. The wiring bundle retraction apparatus according to claim 1, characterized by The limiting mechanism comprises a tensioning assembly arranged in the axial direction of the first through hole, and the wire harness comprises a first coil and a second coil connected with each other, the first coil is arranged around the rotor, and the second coil is arranged around the outer circumferential surface of the tensioning assembly away from the rotor.

3. The wiring bundle retraction apparatus of claim 2, wherein The tensioning assembly comprises a guide structure and a first tensioning structure, the guide structure and the first tensioning structure are arranged in a spaced manner and form a wire slot, and the part connected with each other of the first coil and the second coil is arranged through and limited in the wire slot.

4. The wiring bundle retraction apparatus of claim 3, wherein The tensioning assembly comprises a first tensioning wheel and a plurality of second tensioning wheels, the first tensioning wheel is configured as the first tensioning structure, the first tensioning wheel and the plurality of second tensioning wheels are distributed in a spaced manner about the axis of the first through hole, and the second coil is arranged around the outer circumferential surface of the first tensioning wheel and each second tensioning wheel away from the rotor.

5. The wiring bundle retraction apparatus of claim 3, wherein The tensioning assembly comprises a first tensioning wheel and at least one elastic mechanism, the first tensioning wheel is configured as the first tensioning structure, the first tensioning wheel and the elastic mechanism are distributed in a spaced manner about the axis of the first through hole, the second coil is arranged in sequence around the outer circumferential surface of the first tensioning wheel and the elastic mechanism away from the rotor, and the elastic mechanism can be elastically deformed along the radial direction of the cavity.

6. The wiring bundle retraction apparatus according to claim 4 or 5, characterized by The first tensioning wheel comprises a fixed wheel and a support wheel, and the support wheel is rotatably sleeved on the fixed wheel.

7. The wiring bundle retraction apparatus of claim 5, wherein The elastic mechanism comprises a mounting frame and an elastic piece, the elastic piece is arranged on the mounting frame, and the wire harness can compress the elastic piece inwardly along the radial direction of the cavity.

8. The wiring bundle retraction apparatus of claim 7, wherein The elastic piece comprises a first plug-in leg, an elastic body and a second plug-in leg connected with each other, the mounting frame comprises a first plug-in slot and a second plug-in slot arranged in a spaced manner, and the first plug-in leg and the second plug-in leg are movably plugged into the first plug-in slot and the second plug-in slot respectively.

9. The wiring bundle retraction apparatus of claim 2, wherein, The first coil and the second coil are arranged in opposite directions.

10. The wiring bundle retraction apparatus of claim 2, wherein The limiting mechanism comprises a plurality of limiting blocks, the plurality of limiting blocks are distributed in a spaced manner about the axis of the first through hole, and the limiting blocks are arranged between the first coil and the second coil along the radial direction of the cavity.

11. The wiring bundle retraction apparatus of claim 1, wherein The rotor comprises a connecting portion and a winding portion along the axial direction thereof, the winding portion is plugged into the first through hole and arranged in the cavity, and the connecting portion is arranged outside the cavity and used for externally connecting a rotating shaft.

12. The wiring bundle retraction apparatus of claim 11, wherein, The connecting portion is provided with a wire passing hole, and one end of the wire harness passes out of the connecting portion from the wire passing hole in the cavity.

13. The wiring bundle retraction apparatus of claim 12, wherein, The shell is provided with a power input port along its circumference, the power input port is communicated with the cavity, and the other end of the wire harness is arranged in the power input port from the cavity.

14. The wiring bundle retraction apparatus of claim 11, wherein, The winding part comprises a winding body and a wire clamping buckle, the wire harness comprises a fitting part, the fitting part is fitted to the winding body, and the wire clamping buckle is used for pressing the fitting part and fixing the fitting part relative to the winding body.

15. The wiring bundle retraction apparatus of claim 1, wherein, The shell comprises a first cavity and a second cavity, the first cavity and the second cavity are detachably connected, part of the rotor is arranged in the first through hole from one side of the first cavity away from the second cavity, one side of the second cavity away from the first cavity is provided with a connecting structure, and the connecting structure is used for externally connecting a fixing seat of a vehicle.

16. A shade assembly comprising the cord reel device of any one of claims 1-15, wherein, The sunshade curtain assembly further comprises a fixing seat and a winding shaft, one side of the shell is connected with the fixing seat, and the end of the winding shaft is connected with the rotor on the other side of the shell.

17. A vehicle characterized by comprising: The vehicle comprises the wire harness winding device of any one of claims 1-15 or the sunshade curtain assembly of claim 16.

Images