Wire harness tensioning structure and wire harness tensioning lifter

Abstract

The invention belongs to the technical field of vehicle window glass, and particularly discloses a wire harness tensioning structure which comprises a shell provided with a wire storage cavity, and the shell is arranged on a vehicle door module; one end of the wire harness is a fixed end and is fixedly mounted in the wire storage cavity, and the other end of the wire harness is a movable end and is exposed out of the wire storage cavity; the coil spring is arranged in the wire storage cavity and presses one side of the wire harness in the length direction of the wire harness through the elastic force of the coil spring; when the wire harness stretches out or retracts back to the wire storage cavity, the coil spring correspondingly retracts or expands, and the wire harness obtains the tension force provided by the coil spring to the wire harness so as to be in a tension trend. The wire harness is tensioned in the lifting process, shaking and flapping of the vehicle door module or winding of other mounting parts of the vehicle window are avoided, and the wire harness is lifted stably. The invention further discloses a lifter for tensioning the wire harness.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle window glass, and in particular relates to a wire harness tensioning structure and a wire harness tensioning lifter. Background Art

[0002] With the continuous advancement of automobile technology, users' functional requirements for automobile glass have become more and more diverse, such as the requirements for riding comfort, privacy protection, and personalized display. Therefore, automobile glass is subdivided into multiple independently controllable small pieces, each of which can display different content or adjust its transparency to meet the needs of sun protection, energy saving, and improving driving experience.

[0003] In order to realize the above functions of automobile glass, automobile glass needs to be connected to the circuit through the wiring harness for power supply and control. However, the window glass in the automobile glass needs to be frequently raised and lowered during use, and this action will inevitably drive the movement of the wiring harness. Usually, the distance between the power supply interface of the wiring harness end of the window glass and the power receiving interface of the window glass end is far, and other components need to be installed between the two ends of the wiring harness. If the wiring harness is not properly handled, then during the lifting process, the wiring harness may shake and hit the window door to produce abnormal noise, or the wiring harness may be entangled with other installation parts, thereby affecting the lifting of the wiring harness.

[0004] In the prior art, the wiring harness structure of application publication number CN117601778A and name of electronic window glass discloses a wiring harness reel assembly, wherein the sliding end is connected to the window glass, the fixed end is connected and reeled in the wiring harness reel assembly, the window glass can be energized through the fixed end of the wiring harness, a wire reel energy storage member is provided in the wiring harness reel assembly to provide tightening force for the wiring harness, and the wiring harness storage member in the wiring harness reel assembly is a wiring harness reel, which can make all the excess wiring harnesses reeled into the wiring harness reel groove, and avoid the problems of excess wiring harness shaking and winding. However, the following problems still exist: the energy storage member stores the wiring harness through the wiring harness reel, and if the lifting speed of the wiring harness is greater than the rotating speed of the wiring harness reel, or the energy storage member is deformed to a certain extent so that the rewinding force is insufficient, the wiring harness cannot be immediately stored in the wiring harness reel and shakes and hits the door module, which will produce abnormal noise. Summary of the invention

[0005] The object of the present invention is to provide a wire harness tensioning structure, which can tension the wire harness in real time during the lifting process, thereby preventing the wire harness from shaking and hitting a door module or entanglement with other installation parts of a window.

[0006] The objective of the present invention is achieved through such a technical solution, specifically providing a wire harness tensioning structure, comprising:

[0007] A housing is arranged on the door module, and the housing is provided with a wire storage cavity;

[0008] A wire harness, one end of which is a fixed end and fixedly installed in the wire storage cavity, and the other end of which is a movable end and exposed outside the wire storage cavity; and

[0009] A coil spring is arranged in the wire storage cavity, and the coil spring presses the wire harness along the length direction of the wire harness through its elastic force;

[0010] As the wire harness extends out or contracts back into the wire storage chamber, the coil spring contracts or opens accordingly, and the wire harness obtains the tensioning force provided by the coil spring and tends to be in tension.

[0011] Preferably, the wire storage cavity is provided with a first wire storage cavity wall and a second wire storage cavity wall, the first wire storage cavity wall annularly surrounds the second wire storage cavity wall, and one end of the coil spring is sleeved between the first wire storage cavity wall and the second wire storage cavity wall.

[0012] Preferably, the wire storage cavity is provided with a mounting hole, which is located at the end of the second wire storage cavity wall; a limiting ear is provided at one end of the coil spring, and the size of the limiting ear is greater than the distance between the inner wall of the first wire storage cavity wall and the outer wall of the mounting hole.

[0013] Preferably, the wiring harness includes a fixed rotary joint, which is fixedly installed in the mounting hole. The wire storage cavity is also provided with a mounting column, and one end of the coil spring is fixedly installed on the mounting column. After the wiring harness and the coil spring are installed, the outlet direction of the wiring harness is in the direction of the common tangent of the coil spring circle and the fixed rotary joint circle.

[0014] Preferably, the coil spring also includes a coil spring support section and a coil spring force storage section, one end of the coil spring support section is connected to the limiting ear, and the other end is connected to the coil spring force storage section, the other end of the coil spring force storage section is fixedly installed on the mounting column, the spiral directions of the two sections are opposite, and the coil spring support section is crimped to one side of the wiring harness.

[0015] Preferably, there are more than two mounting posts, one end of the coil spring is mounted on the mounting post, and at least two mounting posts at the coil spring lead-out position are arc-shaped.

[0016] Preferably, it also includes a rotating wheel installed at the wire outlet of the wire storage cavity. There are more than two rotating wheels, and a rotating wheel gap is formed between two adjacent rotating wheels. The wire harness is passed through the rotating wheel gap.

[0017] Preferably, the housing is further provided with a wire storage cover, and the wire storage cover covers the wire storage cavity.

[0018] Preferably, the wiring harness is at least partially a flat wiring harness, the coil spring is flat, and the width of the coil spring matches the width of the wiring harness.

[0019] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] A coil spring is arranged in the wire storage cavity, and the elastic force of the coil spring is used to directly apply a pressure contact force to the wire harness, so that the excess wire harness is immediately pulled back into the wire storage cavity; when the external force causes the wire harness to extend out of the wire storage cavity, the coil spring contracts and cooperates, thereby providing tensioning force for the movement of the wire harness, and the wire harness is always in a taut tendency, so that the excess wire harness is immediately rolled up into the wire storage cavity, so as to avoid the problem that the excess wire harness may shake and hit the door module to produce abnormal noise during the lifting process, or the wire harness may be entangled with other mounting parts of the window.

[0021] Another object of the present invention is to provide a lifter for tensioning a wire harness, wherein the tensioned wire harness moves along with the lifting component.

[0022] The objective of the present invention is achieved through such a technical solution, specifically providing a wire harness tensioning lifter, including a wire harness tensioning structure. A driving component and a lifting component are also provided on the door module. The output end of the driving component is connected to the lifting component, one end of the wire harness is installed on the lifting component, and the driving component drives the lifting component to slide, thereby driving the wire harness to extend out of the wire storage cavity.

[0023] Due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] Through the coordination of the wire harness tensioning structure, driving components and lifting components, the wire harness is always kept taut during the lifting process of the lifter, so that the wire harness can be lifted and lowered in an orderly manner on the door module, thereby achieving stable lifting of the window glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1 It is a structural schematic diagram of a wire harness tensioning structure of the present invention;

[0027] Figure 2 This is a schematic diagram showing one end of the wiring harness located at position A of the door module;

[0028] Figure 3 This is a schematic diagram showing one end of the wiring harness located at position B of the door module;

[0029] Figure 4 It is a structural schematic diagram of the wire storage cavity;

[0030] Figure 5 Schematic diagram of the mounting hole and the runner gap;

[0031] Figure 6 This is a schematic diagram of the wiring harness coming out from the center of a fixed rotary joint;

[0032] Figure 7It is a schematic diagram of the wiring harness coming out in the direction of the common tangent of the coil spring circle and the fixed rotary joint circle;

[0033] Figure 8 is a schematic diagram of a coil spring;

[0034] Fig. 9 It is a structural schematic diagram of the installation column;

[0035] Fig.10 is a schematic diagram of the structure of the runner;

[0036] Fig.11 is a schematic diagram of the installation of the runner on the runner installation column;

[0037] Fig.12 It is a structural schematic diagram of the wire storage cover installed in the wire storage cavity;

[0038] Fig.13 It is a schematic diagram of the card table being installed in the card hole;

[0039] Fig.14 It is a schematic diagram of the structure of the wiring harness;

[0040] Fig.15 Schematic diagram of the structure of the lifter for wire harness tensioning.

[0041] Reference numerals:

[0042] 1-housing, 11-line storage cavity, 111-first line storage cavity wall, 112-second line storage cavity wall, 113-first storage cavity, 114-second storage cavity, 115-card stand, 12-line outlet, 13-mounting hole, 131-V-groove, 14-mounting column, 15-assembly gap, 16-rotor mounting column, 161-buckle, 17-line storage cover, 171-card hole,

[0043] 2-wiring harness, 21-fixed rotary joint, 211-V-shaped boss, 22-first wire segment, 23-bushing, 24-second wire segment, 241-coil spring groove, 25-third wire segment, 26-first plug interface, 27-second plug interface,

[0044] 3-coil spring, 31-limiting ear, 32-coil spring support section, 33-coil spring force storage section, 34-coil spring installation end,

[0045] 4-wheel, 41-wheel gap,

[0046] 5-driving component, 51-reel seat, 52-reel, 53-cable, 54-motor,

[0047] 6-lifting parts, 61-bracket, 62-guide rail,

[0048] 7-wiring harness extreme open position, 8-wiring harness extreme retracted position, 9-door module. DETAILED DESCRIPTION

[0049] See also Figure 1 , Figure 5 and Fig.15 , a wire harness tensioning structure, comprising: a housing 1, a wire harness 2 and a coil spring 3.

[0050] The housing 1 is arranged on the door module 9, and the housing 1 is provided with a wire storage cavity 11; one end of the wire harness 2 is a fixed end, fixedly installed in the wire storage cavity 11, and the other end is a movable end, exposed in the wire storage cavity 11; the coil spring 3 is arranged in the wire storage cavity 11, and the coil spring 3 presses one side of the wire harness 2 along the length direction of the wire harness 2 through its elastic force; as the wire harness 2 extends or retracts back to the wire storage cavity 11, the coil spring 3 shrinks or opens accordingly, and the wire harness 2 obtains the tensioning force provided by the coil spring 3 and is in a tensioning trend. Specifically, the housing 1 is fixedly installed on the door module 9, or the housing 1 is formed integrally with the door module 9. The door module 9 is provided with a window glass divided into N separate control areas, each area is provided with electrically connected wires, and the wires are orderly integrated in the wire harness 2, and at least part of the wire harness 2 is arranged in the wire storage cavity 11, and extends from the outlet 12 or retracts into the wire storage cavity 11. The shape of the coil spring 3 matches that of the wire harness 2 . Under the action of elastic force, one side of the coil spring 3 can always be in close contact with one side of the wire harness 2 in the wire storage cavity 11 and in contact along the length direction of the wire harness 2 .

[0051] See also Figure 1 , Figure 2 and Figure 3 , the wire storage cavity 11 is located on one side of the door module 9. When the window glass is sliding, the wire harness 2 slides between the highest point A and the lowest point B on the door module 9. When one end of the wire harness 2 is located at the highest point A, one end of the wire harness 2 is located at the lowest point B, or one end of the wire harness 2 is at point C opposite to the outlet 12, it is obvious that when the wire harness 2 slides to different positions, the length of the wire harness 2 in the door module 9 is different, and the storage length of the wire harness 2 in the wire storage cavity 11 is also different. Preferably, the installation position of the wire storage cavity 11 is located between the highest point A and the lowest point B, which can effectively shorten the required length of the wire harness 2.

[0052] When the wire harness tensioning structure of the present invention is used, when the wire harness 2 is moved toward A or B of the door module 9 by an external force, the wire harness 2 in the wire storage cavity 11 is extended outward by the external force, and the coil spring 3 contracts accordingly due to the movement of the wire harness 2. At this time, the coil spring 3 contracts and stores energy; when the wire harness 2 moves toward C in the door module 9, the wire harness 2 stores energy using the coil spring 3, and the coil spring 3 opens accordingly to apply a pressure force to the wire harness 2, so that the wire harness 2 is pulled back and pressed into the wire storage cavity 11, and the coil spring 3 cooperates to provide tensioning force to the wire harness 2. The coil spring 3 is directly crimped to the wire harness 2 to avoid the wire harness 2 being not stored in time when the wire harness 2 is raised or lowered at a fast speed; the coil spring 3 is directly crimped to the wire harness 2, even if the coil spring 3 is deformed to a certain extent, as long as the coil spring 3 is crimped to the wire harness 2, it can ensure that the wire harness 2 always remains taut, so that the wire harness 2 is rolled up into the wire storage cavity 11, thereby avoiding the problem that the excess wire harness 2 may shake and hit the door module 9 to produce abnormal noise during the lifting process of the wire harness 2, or the wire harness 2 is entangled with other mounting parts of the window.

[0053] See also Figure 4 , further, the wire storage cavity 11 is provided with a first wire storage cavity wall 111 and a second wire storage cavity wall 112, the first wire storage cavity wall 111 surrounds the second wire storage cavity wall 112 in an annular manner, and one end of the coil spring 3 is sleeved between the first wire storage cavity wall 111 and the second wire storage cavity wall 112. Specifically, the first wire storage cavity wall 111 and the second wire storage cavity wall 112 are both arc-shaped boss walls along the inner wall of the wire storage cavity 11, the first wire storage cavity wall 111 surrounds the second wire storage cavity wall 112 in an annular manner, and a first storage cavity 113 is formed between the inner wall of the first wire storage cavity wall 111 and the outer wall of the second wire storage cavity wall 112, and the extended part of the coil spring 3 is stored in the first storage cavity 113 when it is opened; the inner wall of the second wire storage cavity wall 112 constitutes a second storage cavity 114, and the coil spring 3 is stored in the second storage cavity 114 when it is contracted, and the wiring harness 2 is retracted and stored in the second storage cavity 114. The first wire storage cavity wall 111 and the second wire storage cavity wall 112 divide the wire storage cavity 11 into a first storage cavity 113 and a second storage cavity 114, thereby guiding the coil spring 3 in opening or contracting. Meanwhile, the extended part of the coil spring 3 does not interfere with or scratch the wire harness 2, thereby increasing the service life of the wire harness 2.

[0054] See also Figure 4 and Figure 5 Furthermore, the wire storage cavity 11 is provided with a mounting hole 13, and the mounting hole 13 is located at the end of the second wire storage cavity wall 112; a limiting ear 31 is provided at one end of the coil spring 3, and the size of the limiting ear 31 is larger than the distance between the inner wall of the first wire storage cavity wall 111 and the outer wall of the mounting hole 13. With this structure, the limiting ear 31 is always in the first storage cavity 113, realizing the limiting function of the coil spring 3, preventing the coil spring 3 from escaping and moving in different directions, making the coil spring 3 retract smoothly, and preventing the coil spring 3 from getting stuck.

[0055] See also Figure 4 and Figure 5Furthermore, the wire harness 2 includes a fixed rotary joint 21, which is fixedly installed in the mounting hole 13. The wire storage cavity 11 is also provided with a mounting column 14, and one end of the coil spring 3 is fixedly installed on the mounting column 14. After the wire harness 2 and the coil spring 3 are installed, the wire outlet direction of the wire harness 2 is in the direction of the common tangent of the coil spring circle and the fixed rotary joint 21 circle. Specifically, the mounting hole 13 is provided with a plurality of V-shaped grooves 131 along its circumference, and the fixed rotary joint 21 is provided with a V-shaped boss 211 that matches the V-shaped groove 121. The V-shaped boss 211 is clamped and fixed in the V-shaped groove 121, so that when the wire harness 2 is extended or retracted into the wire storage cavity 11, the wire harness 2 will not rotate axially from the wire outlet direction of the fixed rotary joint 21, so that the extension or retraction movement of the wire harness 2 is smooth. Preferably, the center of the mounting hole and the coil spring 3 are arranged in cooperation, so that the wire harness 2 is led out at the fixed rotary joint 21 in the direction of the common tangent of the coil spring circle and the fixed rotary joint circle, rather than the center of the fixed rotary joint 21. During the entire process of contraction or expansion of the wire harness 2, the swing angle of the wire harness extreme expansion position 7 and the wire harness extreme contraction position 8 is smaller. Figure 6 For the wire outlet mode of the fixed rotary joint 21, the swing angle between the wire harness limit opening position 7 and the wire harness limit contraction position 8 is α1. Figure 7 In the experiment, the wire harness 2 is subjected to the common tangent direction of the coil spring circle and the fixed rotary joint circle, and the swing angle between the wire harness extreme opening position 7 and the wire harness extreme contraction position 8 is α2, α2<α1, which reduces the swing amplitude of the wire harness 2, thereby extending the service life of the wire harness 2.

[0056] See also Figure 8 Further, the coil spring 3 also includes a coil spring support section 32 and a coil spring force storage section 33. One end of the coil spring support section 32 is connected to the limiting ear 31, and the other end is connected to the coil spring force storage section 33. The other end of the coil spring force storage section 33 is fixedly mounted on the mounting column 14. The spiral directions of the two sections are opposite. The coil spring support section 32 is crimped to one side of the wiring harness 2. Specifically, the coil spring support section 32 and the coil spring force storage section 33 have opposite spiral directions. The coil spring support section 32 has a large vortex feature, which provides support force for the wiring harness 2, ensures that the coil spring support section 32 supports and sticks to the wiring harness 2, and prevents the wiring harness 2 from detaching, misaligning or tangling. The coil spring force storage section 33 has a small vortex feature, which provides a rotational torque during the retraction of the wiring harness 2, smoothly retracts the wiring harness 2, and provides a pre-tightening force to tighten the wiring harness 2. The segmented design of the coil spring 3 can provide support force, rotation torque and pre-tightening force for the wiring harness 2, ensuring smooth retraction and release of the wiring harness 2, eliminating the risk of tangled wires, and eliminating the risk of the wiring harness 2 being loose and hitting the door module 9 and generating abnormal noise.

[0057] See also Figure 4 and Fig. 9Furthermore, more than two mounting posts 14 are provided, one end of the coil spring 3 is installed on the mounting posts 14, and at least two mounting posts 14 at the position where the coil spring 3 is led out are arc-shaped. Specifically, the mounting posts 14 are annular posts, and the coil spring assembly gap 15 is formed by arranging different numbers of annular posts, and a curve is formed between the mounting posts 14. The coil spring force storage section 33 is provided with a coil spring mounting end 34, and the shape of the coil spring mounting end 34 matches the shape of the curved gap. The coil spring mounting end 34 is installed in the assembly gap 15 by interference fit, so that the coil spring 3 is fixedly installed on the mounting posts 14. Two mounting posts 14 are provided at the junction of the coil spring force storage section 33 and the coil spring mounting end 34, and the opposite surfaces of the two mounting posts 14 are arc-shaped, which has a guiding effect on the lead-out direction of the coil spring force storage section 33.

[0058] See also Figure 4 , Figure 5 , Fig.10 and Fig.11 Furthermore, the tensioning structure of the wire harness 2 also includes a rotating wheel 4, which is installed at the wire outlet 12 of the wire storage cavity 11. There are more than two rotating wheels 4, and a rotating wheel gap 41 is formed between at least two adjacent rotating wheels 4. The wire harness 2 is passed through the rotating wheel gap 41. Specifically, the rotating wheel gap 41 is slightly smaller than the thickness of the wire harness 2. Specifically, the rotating wheel 4 structure is a rotating body with a stepped cross-section. A plurality of rotating wheel mounting columns 16 are provided on the side of the door module 9 close to the wire outlet 12, and a rotating wheel 4 is installed on the outside of each rotating wheel mounting column 16. A plurality of elastic buckles 161 are provided at the upper end of the rotating wheel mounting column 16. The buckle 161 and the rotating wheel 4 are assembled by interference fit, so that the rotating wheel 4 and the wire harness 2 do not generate vibration and abnormal sound in the non-contact area. Preferably, there are three buckles 161. With this structure, not only the hard friction between the wire harness 2 and the rotating wheel 4 is small. The service life of the wire harness 2 is improved, and the wheel gap 41 has a restraining and guiding effect on the wire harness 2, preventing the wire harness 2 from escaping from the wheel 4 and preventing the wire harness 2 from being tangled.

[0059] See also Fig.14, further, the wiring harness 2 is at least partially a flat wiring harness, the coil spring 3 is flat, and the width of the coil spring 3 matches the width of the wiring harness 2. Specifically, the wiring harness 2 is integrated by a plurality of wires, and the wiring harness 2 also includes a first wire segment 22, a bushing 23, a second wire segment 24, a third wire segment 25, a first plug interface 26, and a second plug interface 27. One end of the second wire segment 24 is mounted on the bushing 23, and the other end is mounted on the fixed rotary joint 21; one end of the first wire segment 22 is mounted on the bushing 23, and the other end is connected to the first plug interface 26; one end of the third wire segment 25 is mounted on the fixed rotary joint 21, and the other end is connected to the second plug interface 27; and the first plug interface 26, the second wire segment 24, and the second plug interface 27 are electrically connected. Preferably, the wires in the second wire segment 24 are divided into three small bundles, which are arranged in parallel to form a flat wire harness. A protective layer is provided on the outside of the flat wire harness. The number of conductive wires in each small bundle is 2-4, thereby avoiding the integration of N wires into a circular wire harness. The circular wire harness is not only large in size, but also has a large difference in bending radius between the inner wire and the outer wire when bending, so the outer wire is easy to break and the outer protective layer is easy to wear. This structure avoids the disadvantage of single-layer or multi-layer arrangement of wires, which causes the size of the wire harness 2 in a single direction to be too large, which is not conducive to the layout of the space inside the door. Preferably, the outer diameter of the wire of the first wire segment 22 is equal to the outer diameter of the wire of the third wire segment 25, and is larger than the outer diameter of the wire of the second wire segment 24. By changing the outer diameter of the wire, it is beneficial to make the volume of the second wire segment 24 as small as possible while meeting the electrical requirements, which can save the window layout space. The wires of the first wire segment 22 and the wires of the second wire segment 24 are first electrically connected by welding, and each wire welding area is covered with an insulating cloth. Then, the first wire segment 22 and the second wire segment 24 are connected by injection molding through a mold to enhance their strength. After being inserted and installed in the bushing 23, they are installed and connected with the first plug interface 26. Similarly, the wires of the second wire segment 24 and the wires of the third wire segment 25 are installed in the fixed rotary joint 21. Preferably, a coil spring groove 241 is provided on the side of the second wire segment 24 that contacts the coil spring 3, and the coil spring 3 contacts the inner wall of the second wire segment 24 in the coil spring groove 241. With this structure, the coil spring 3 has a guiding effect on the wire harness 2, and the coil spring 3 is not easy to separate from the wire harness 2.

[0060] The fixed rotary joint 21 is installed in the mounting hole 13, and the third wire 25 segment passes through the mounting hole 13, that is, the third wire segment 25 passes through the mounting hole 13 and then passes through the door module 9 to reach the other side of the door module 9. After the third wire segment 25 is installed in the mounting hole 13, it not only fixes the fixed rotary joint 21, realizes the internal and external connection between the wire harness 2 and the door module 9, but also has the function of waterproof and dustproof.

[0061] See also Fig.12 and Fig.13Furthermore, the housing 1 is also provided with a wire storage cover 17, which covers the top of the wire storage cavity 11. Specifically, a plurality of clamping platforms 115 are provided on the first wire storage cavity wall 111 and the second wire storage cavity wall 112, and a clamping hole 171 matching the clamping platform 115 is provided on the wire storage cover 17, so that the wire storage cover 17 can be quickly installed and fixed on the top of the wire storage cavity 11, which not only protects the internal components of the wire storage cavity 11, but also limits the width direction of the coil spring 3 and the wire harness 2, so as to prevent the coil spring 3 and the wire harness 2 from escaping from the wire storage cavity 11.

[0062] See also Fig.15 A wire harness tensioning lifter includes a wire harness 2 tensioning structure, a driving component 5 and a lifting component 6 are also provided on a vehicle door module 9, the output end of the driving component 5 is connected to the lifting component 6, one end of the wire harness 2 is mounted on the lifting component 6, and the driving component 5 drives the lifting component 6 to slide, driving the wire harness 2 to extend or retract back to the wire storage chamber 11. Specifically, the existing technology of the vehicle window lifter is adopted, the driving component 5 includes a reel seat 51, a reel 52, a cable 53 and a motor 54; the lifting component 6 includes a bracket 61 and a guide rail 62. The guide rail 62 is fixedly mounted on the vehicle door module 9, and the bracket 61 is slidably mounted on the guide rail 62 and slides along the guide rail 62. The bracket 61 is fixedly connected to the vehicle window glass clip, the bushing 23 is fixedly mounted on the bracket 61, and the first plug interface 26 is electrically connected to the power receiving interface at the vehicle window glass end. The fixed rotating joint 21 is fixedly installed in the mounting hole 13, and the third wire segment 25 passes through the mounting hole 13 to electrically connect the second plug interface 27 with the window power supply interface. The second wire segment 24 is arranged between the power receiving interface at the window glass end and the window power supply interface to realize the electrical connection between the functional glass and the power supply.

[0063] The reel seat 51 is fixedly mounted on the door module 9, the wire reel 52 is rotatably mounted in the reel seat 51, the cable 53 is wound around the wire reel 52, and the motor 54 is mounted on the door module 9, with its output end connected to the wire reel 52. The motor 54 starts to rotate, driving the wire reel 52 to retract or release the cable 53, so that the bracket 61 moves up and down along the preset guide rail 62. The bracket 61 is connected to the wire harness 2 through the bushing 23, and the coil spring 3 provides a preset tension force to the wire harness 2, so that the wire harness 2 follows the bracket 61 to rise and fall, completing the wire harness 2 retracting and releasing function, and the coil spring 3 keeps the wire harness 2 in a taut state.

[0064] A coil spring 3 is arranged in the wire storage cavity 11. The elastic force of the coil spring 3 is used to open the coil spring 3, and a pressure force is applied to the wire harness 2, so that the wire harness 2 is immediately pulled back into the wire storage cavity 11. When the wire harness 2 is extended out of the wire storage cavity 11 by an external force, the coil spring 3 contracts and cooperates. The coil spring 3 not only cooperates with the movement of the wire harness 2 to provide tension, but also stores energy for the coil spring 3. The wire harness 2 always maintains a taut trend, which prevents the excess wire harness 2 from shaking and hitting the door module 9 to produce abnormal noise during the lifting process of the wire harness 2, or the wire harness 2 is entangled with other mounting parts of the window. A first wire storage cavity wall 111 and a second wire storage cavity wall 112 surrounded by the first wire storage cavity wall 111 are arranged in the wire storage cavity 11, so that the coil spring 3 can guide the extension or retraction of the coil spring 3 when the wire harness 2 is retracted and released. At the same time, the extended part of the coil spring 3 does not interfere with or scratch the wire harness 2, thereby improving the service life of the wire harness 2. The coil spring 3 includes a limiting ear 31, a coil spring support section 32 and a coil spring force storage section 33, which realizes the limiting function of the coil spring 3, prevents the coil spring 3 from coming out and moving in different directions, makes the coil spring 3 stretch smoothly, and prevents the coil spring 3 from getting stuck. The coil spring 3 provides support force, rotation torque and preload force to the wiring harness 2, ensures the smooth retraction and release of the wiring harness 2, eliminates the risk of tangled wires, and eliminates the risk of slapping and abnormal noise. The wiring harness 2 includes a fixed rotary joint 21, and the wiring harness 2 is routed at the fixed rotary joint 21 in the direction of the common tangent of the coil spring circle and the fixed rotary joint circle, rather than the center of the fixed rotary joint 21, to reduce the swing amplitude of the wiring harness 2, thereby extending the service life of the wiring harness 2. The wheel gap 41 is set, which not only reduces the hard friction between the wiring harness 2 and the wheel. It improves the service life of the wiring harness 2, and the guide wheel gap 41 has a guiding effect on the wiring harness 2, preventing the wiring harness 2 from coming out of the rotary wheel 4 and preventing the wiring harness 2 from being tangled. A lifter is set to drive the wiring harness 2 to rise and fall on the door module 9, thereby realizing the up and down movement of the window glass.

[0065] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire harness tensioning structure, characterized in that: include: A housing (1) is arranged on a vehicle door module (9), and the housing (1) is provided with a wire storage cavity (11); A wire harness (2), one end of which is a fixed end and fixedly installed in the wire storage cavity (11), and the other end of which is a movable end and exposed outside the wire storage cavity (11); and A coil spring (3) is arranged in the wire storage cavity (11), and the coil spring (3) presses the wire harness (2) along the length direction of the wire harness (2) by its elastic force; As the wire harness (2) extends out or retracts back into the wire storage chamber (11), the coil spring (3) contracts or opens accordingly, and the wire harness (2) obtains the tensioning force provided by the coil spring (3) and is in a tensioning trend.

2. The wire harness tensioning structure according to claim 1, characterized in that: The wire storage cavity (11) is provided with a first wire storage cavity wall (111) and a second wire storage cavity wall (112); the first wire storage cavity wall (111) surrounds the second wire storage cavity wall (112) in an annular manner; and one end of the coil spring (3) is sleeved between the first wire storage cavity wall (111) and the second wire storage cavity wall (112).

3. The wire harness tensioning structure according to claim 2, characterized in that: The wire storage cavity (11) is provided with a mounting hole (13), and the mounting hole (13) is located at the end of the second wire storage cavity wall (112); a limiting ear (31) is provided at one end of the coil spring (3), and the size of the limiting ear (31) is greater than the distance between the inner wall of the first wire storage cavity wall (111) and the outer wall of the mounting hole (13).

4. The wire harness tensioning structure according to claim 3, characterized in that: The wire harness (2) comprises a fixed rotary joint (21), which is fixedly mounted in a mounting hole (13). The wire storage cavity (11) is further provided with a mounting post (14), and one end of a coil spring (3) is fixedly mounted on the mounting post (14). After the wire harness (2) and the coil spring (3) are mounted, the wire outlet direction of the wire harness (2) is in the direction of a common tangent of a coil spring circle and a fixed rotary joint circle.

5. The wire harness tensioning structure according to claim 4, characterized in that: The coil spring (3) further comprises a coil spring support section (32) and a coil spring force storage section (33); one end of the coil spring support section (32) is connected to the limiting ear (31), and the other end is connected to the coil spring force storage section (33); the other end of the coil spring force storage section (33) is fixedly mounted on the mounting column (14); the spiral directions of the two sections are opposite; the coil spring support section (32) is crimped to one side of the wiring harness (2).

6. The wire harness tensioning structure according to claim 4 or 5, characterized in that: There are more than two mounting posts (14), and at least two mounting posts (14) at the positions where the coil spring (3) is led out are arc-shaped.

7. The wire harness tensioning structure according to claim 1, 2, 3, 4 or 5, characterized in that: It also comprises a rotating wheel (4) mounted on the wire outlet (12) of the wire storage chamber (11), wherein two or more rotating wheels (4) are provided, a rotating wheel gap (41) is formed between two adjacent rotating wheels (4), and the wire harness (2) is passed through the rotating wheel gap (41).

8. The wire harness tensioning structure according to claim 1, 2, 3, 4 or 5, characterized in that: The housing (1) is also provided with a wire storage cover (17), and the wire storage cover (17) covers the top of the wire storage cavity (11).

9. The wire harness tensioning structure according to claim 1, 2, 3, 4 or 5, characterized in that: At least part of the wire harness (2) is a flat wire harness, the coil spring (3) is flat, and the width of the coil spring (3) matches the width of the wire harness (2).

10. A wire harness tensioning lifter, characterized in that: The invention comprises a wire harness tensioning structure as claimed in any one of claims 1 to 9, wherein the door module (9) is further provided with a driving component (5) and a lifting component (6), wherein the output end of the driving component (5) is connected to the lifting component (6), one end of the wire harness (2) is mounted on the lifting component (6), and the driving component (5) drives the lifting component (6) to slide, thereby driving the wire harness (2) to extend out of the wire storage cavity (11).

Images