Wire harness tensioning structure and wire harness tensioning lifter

Abstract

The utility model 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 utility model further discloses a lifter for tensioning the wire harness.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle window glass, concretely relates to a wire harness tensioning structure and a wire harness tensioning lifter. BACKGROUND

[0002] With the continuous progress of automotive technology, the functional requirements of users for automotive glass are becoming more and more diversified, such as the requirements for ride comfort, privacy protection, and personalized display. Therefore, automotive glass is subdivided into multiple independently controllable small pieces, each of which can display different content or adjust its transparency to meet the requirements for sun protection, energy saving, and improved driving experience.

[0003] In order to realize the above functions of automotive glass, the automotive glass needs to be connected to the circuit through a wire harness for power supply and control. However, the vehicle window glass in the automotive glass needs to be frequently lifted during use, and this action will inevitably drive the movement of the wire harness. Generally, the power supply interface at the wire harness end of the vehicle window glass is far away from the power receiving interface at the vehicle window glass end, and other components need to be installed between the two ends of the wire harness. If the wire harness is not properly handled, the wire harness may shake and hit the vehicle door during lifting, or the wire harness may be wound around other installed parts, thereby affecting the lifting of the wire harness.

[0004] In the prior art, the wire harness structure of the electronic vehicle window glass with the application publication number CN117601778A discloses a wire harness winding assembly, a sliding end connected to the vehicle window glass, and a fixed end connected to and wound in the wire harness winding assembly. The wire harness fixed end can supply power to the vehicle window glass. The wire harness winding assembly is provided with a winding energy storage member to provide a tightening force for the wire harness. The wire harness winding assembly accommodates the wire harness as a wire harness winding wheel, which can wind the excess wire harness into the wire harness winding wheel groove, avoiding the problems of shaking and winding of the excess wire harness. However, there are still the following problems: when the winding speed of the wire harness winding wheel is less than the lifting speed of the wire harness, or when the winding energy storage member is deformed and the winding force is insufficient, the wire harness cannot be immediately accommodated in the wire harness winding wheel and will shake and hit the vehicle door module, which will produce abnormal noise. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a wire harness tensioning structure, which can be tensioned in real time during lifting to avoid shaking and hitting the vehicle door module or winding around other installed parts of the vehicle window.

[0006] The utility model is achieved by the technical scheme, and specifically provides a wire harness tensioning structure, which comprises:

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

[0008] The wire harness has one end as a fixed end and the other end as a moving end.

[0009] The coil spring is arranged in the wire storage cavity and is used to press the wire harness along the length direction of the wire harness by the elastic force of the coil spring.

[0010] When the wire harness is stretched out or retracted into the wire storage cavity, the coil spring is correspondingly retracted or expanded, and the wire harness is in a tension trend due to the tension provided by the coil spring.

[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 located at the end of the second wire storage cavity wall, and one end of the coil spring is provided with a limiting lug, and the size of the limiting lug 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 wire harness comprises a fixed rotary joint fixedly installed in the mounting hole, and the wire storage cavity is further provided with a mounting column, and one end of the coil spring is fixedly installed on the mounting column, and the wire outlet direction of the wire harness is in the direction of the common tangent of the circle of the coil spring and the circle of the fixed rotary joint after the wire harness and the coil spring are installed.

[0014] Preferably, the coil spring further comprises a coil spring supporting section and a coil spring force storage section, one end of the coil spring supporting section is connected with the limiting lug, the other end of the coil spring supporting section is connected with 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 supporting section is press-connected with one side of the wire harness.

[0015] Preferably, the mounting column is provided with two or more mounting columns, one end of the coil spring is installed on the mounting column, and the two mounting columns at least at the position where the coil spring is led out are arc-shaped.

[0016] Preferably, the utility model further comprises a rotating wheel installed at the wire outlet of the wire storage cavity, the rotating wheel is provided with two or more rotating wheels, a rotating wheel gap is formed between two adjacent rotating wheels, and the wire harness is arranged in the rotating wheel gap.

[0017] Preferably, the shell is further provided with a wire storage cover covering above the wire storage cavity.

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

[0019] Thanks to the above technical scheme, the utility model has the following beneficial effects:

[0020] The spring is arranged in the wire storage cavity, the spring directly applies pressure to the wire harness by the elastic force, the excess wire harness is immediately pulled back into the wire storage cavity, the spring is retracted when the wire harness is stretched out of the wire storage cavity, the spring provides tension force to the wire harness, the wire harness is always in a tight state, the excess wire harness is immediately retracted into the wire storage cavity, the wire harness is prevented from shaking and hitting the door module to generate abnormal sound, or the wire harness is prevented from winding other installation parts of the window.

[0021] Another purpose of the utility model is to provide a wire harness tensioning lifter, the wire harness is tensioned and moves with the lifting component.

[0022] The utility model discloses a wire harness tensioning lifter, which comprises a wire harness tensioning structure, a driving component and a lifting component are further arranged on the door module, the output end of the driving component is connected with the lifting component, one end of the wire harness is installed on the lifting component, the driving component drives the lifting component to slide and drives the wire harness to stretch out of the wire storage cavity.

[0023] Due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0024] Through the cooperation of the wire harness tensioning structure, the driving component and the lifting component, the wire harness is always in a tight state during the lifting process of the wire harness tensioning lifter, the wire harness is orderly lifted on the door module, and the window glass lifting is stable. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the specific embodiment of the utility model, the drawings needed in the specific embodiment will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0026] Figure 1 It is a structure schematic view of the wire harness tensioning structure of the utility model;

[0027] Figure 2 It is a schematic view of the wire harness at one end of the door module A position;

[0028] Figure 3 It is a schematic view of the wire harness at one end of the door module B position;

[0029] Figure 4 It is a structure schematic view of the wire storage cavity;

[0030] Figure 5 It is a schematic view of the mounting hole and the rotating wheel gap;

[0031] Figure 6 It is a schematic view of the wire harness with the fixed rotating joint center;

[0032] Figure 7 Figure 1 is a schematic diagram of a wire harness in a wire outlet mode of a common tangent direction of a coil spring circle and a fixed rotary joint circle;

[0033] Figure 8 Figure 2 is a schematic diagram of a coil spring;

[0034] Figure 9 Figure 3 is a schematic diagram of a mounting column structure;

[0035] Figure 10 Figure 4 is a schematic diagram of a rotating wheel structure;

[0036] Figure 11 Figure 5 is a schematic diagram of a rotating wheel mounted on a rotating wheel mounting column;

[0037] Figure 12 Figure 6 is a schematic diagram of a wire storage cover mounted on a wire storage cavity;

[0038] Figure 13 Figure 7 is a schematic diagram of a clamping table mounted on a clamping hole;

[0039] Figure 14 Figure 8 is a schematic diagram of a wire harness structure;

[0040] Figure 15 Figure 9 is a schematic diagram of a wire harness tensioning lifter structure.

[0041] Reference signs:

[0042] 1 - housing, 11 - wire storage cavity, 111 - first wire storage cavity wall, 112 - second wire storage cavity wall, 113 - first storage cavity, 114 - second storage cavity, 115 - clamping table, 12 - wire outlet, 13 - mounting hole, 131 - V-shaped groove, 14 - mounting column, 15 - assembly gap, 16 - rotating wheel mounting column, 161 - clamping buckle, 17 - wire storage cover, 171 - clamping hole,

[0043] 2 - wire 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-in port, 27 - second plug-in port,

[0044] 3 - coil spring, 31 - limiting lug, 32 - coil spring support segment, 33 - coil spring storage segment, 34 - coil spring mounting end,

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

[0046] 5 - driving component, 51 - winding wheel seat, 52 - wire winding wheel, 53 - pull cable, 54 - motor,

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

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

[0049] Referring to Figure 1 , Figure 5 and Figure 15 , a wire harness tensioning structure comprises 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 and is fixedly installed in the wire storage cavity 11, and the other end is a moving end and is exposed to the wire storage cavity 11. The coil spring 3 is arranged in the wire storage cavity 11, and the coil spring 3 is in pressure contact with one side of the wire harness 2 along the length direction of the wire harness 2 through the elastic force of the coil spring 3. With the wire harness 2 extending out of or retracting into the wire storage cavity 11, the coil spring 3 is correspondingly retracted or opened, and the wire harness 2 is in a tensioned trend due to the tension provided by the coil spring 3. Specifically, the housing 1 is fixedly installed on the door module 9, or the housing 1 is integrally formed 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, 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 out of or retracts into the wire storage cavity 11 from the wire outlet 12. The coil spring 3 is matched with the wire harness 2 in shape, and under the action of the elastic force, one side of the coil spring 3 can always tightly abut against one side of the wire harness 2 in the wire storage cavity 11 in the length direction of the wire harness 2.

[0051] Referring to Figure 1 , Figure 2 and Figure 3 , the wire storage cavity 11 is located on one side of the door module 9, and in the sliding process of the window glass, 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 the C point opposite to the wire outlet 12, it is obvious that the length of the wire harness 2 in the door module 9 is different when the wire harness 2 slides to different positions, 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 length of the required wire harness 2.

[0052] Using the wire harness tensioning structure of this utility model, when the wire harness 2 moves towards A or B of the door module 9 under the action of external force, the wire harness 2 in the wire storage cavity 11 extends outward under the action of 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 towards C in the door module 9, the wire harness 2 uses the coil spring 3 to store energy. The coil spring 3 opens accordingly to apply a pressing force to the wire harness 2, causing the wire harness 2 to be pulled back and pressed into the wire storage cavity 11. With the cooperation of the coil spring 3, a tensioning force is provided to the wire harness 2. The coil spring 3 is directly crimped to the wire harness 2 to prevent the wire harness 2 from not being stored in time when the lifting speed is fast. The direct crimping of the coil spring 3 to the wire harness 2 ensures that even if the coil spring 3 deforms to a certain extent, as long as the coil spring 3 is crimped to the wire harness 2, the wire harness 2 will always maintain a taut trend, so that the wire harness 2 is all wound into the wire storage cavity 11. This avoids the problem that the excess wire harness 2 may shake and hit the door module 9 and produce abnormal noise during the lifting process, or the problem that the wire harness 2 may get tangled in other installation parts of the window.

[0053] Please see Figure 4 Furthermore, 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 shape. 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 shape. 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. When the coil spring 3 is opened, the extended part is stored in the first storage cavity 113. The inner wall of the second wire storage cavity wall 112 forms a second storage cavity 114. When the coil spring 3 is contracted, it is stored in the second storage cavity 114, and the wire 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 when it opens or contracts. At the same time, the extended part of the coil spring 3 does not interfere with or scratch the wire harness 2, thus improving the service life of the wire harness 2.

[0054] Please see Figure 4 and Figure 5 Furthermore, the wire storage cavity 11 is provided with a mounting hole 13, which is located at the end of the second wire storage cavity wall 112; one end of the coil spring 3 is provided with a limiting ear 31, the size of which 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 coming out and moving in different directions, ensuring smooth extension and retraction of the coil spring 3, and preventing the coil spring 3 from getting stuck.

[0055] Please see Figure 4 and Figure 5, further, the wire harness 2 includes a fixed rotary joint 21 fixedly installed in the mounting hole 13, and the wire storage cavity 11 is further provided with a mounting column 14, 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 the circumference thereof, and the fixed rotary joint 21 is provided with a V-shaped protrusion 211 matched with the V-shaped groove 121, the V-shaped protrusion 211 is clamped and fixed in the V-shaped groove 121, so that when the wire harness 2 is stretched out or retracted into the wire storage cavity 11, the wire outlet direction of the wire harness 2 from the fixed rotary joint 21 cannot be axially rotated, so that the stretching out or retracting movement of the wire harness 2 is stable. Preferably, the mounting hole center and the coil spring 3 are matched to make the wire outlet direction of the wire harness 2 at the fixed rotary joint 21 be 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, so that the swing angle of the wire harness limit extension position 7 and the wire harness limit retraction position 8 is smaller during the entire stretching out or retracting process of the wire harness 2. As shown in Figure 6 For the wire outlet direction only from the center of the fixed rotary joint 21, the swing angle of the wire harness limit extension position 7 and the wire harness limit retraction position 8 is α1, as shown in Figure 7 For the wire outlet direction of the wire harness 2 experimentally from the common tangent direction of the coil spring circle and the fixed rotary joint circle, the swing angle of the wire harness limit extension position 7 and the wire harness limit retraction position 8 is α2, α2 < α1, the swing amplitude of the wire harness 2 is reduced, thereby prolonging the service life of the wire harness 2.

[0056] Please refer to Figure 8 , further, the coil spring 3 further includes a coil spring supporting section 32 and a coil spring force storage section 33, one end of the coil spring supporting section 32 is connected with the limiting lug 31, the other end is connected with the coil spring force storage section 33, the other end of the coil spring force storage section 33 is fixedly installed on the mounting column 14, and the spiral directions of the two sections are opposite, and the coil spring supporting section 32 is pressure-welded with one side of the wire harness 2. Specifically, the coil spring supporting section 32 and the coil spring force storage section 33 have opposite spiral directions, the coil spring supporting section 32 has a large vortex feature, provides support force for the wire harness 2, ensures that the coil spring supporting section 32 supports and tightly contacts the wire harness 2, and prevents the wire harness 2 from being separated, misaligned or tangled. The coil spring force storage section 33 has a small vortex feature, provides a rotary torque for the wire harness 2 during the retraction process, smoothly retracts the wire harness 2, and provides a pre-tightening force to tension the wire harness 2. The sectional design of the coil spring 3 can provide support force, rotary torque and pre-tightening force for the wire harness 2, ensure that the wire harness 2 is smoothly retracted and extended, eliminate the risk of tangling, and eliminate the risk of abnormal sound caused by the wire harness 2 being loose and hitting the door module 9.

[0057] Please refer to Figure 4 and Figure 9, further, the mounting column 14 is provided with two or more, one end of the coil spring 3 is mounted on the mounting column 14, and the two mounting columns 14 at least at the coil spring leading position are arc-shaped. Specifically, the mounting column 14 is a ring-shaped column, and the coil spring assembly gap 15 is formed by arranging a plurality of ring-shaped columns, and the mounting columns 14 form a curve therebetween. The coil spring storage section 33 is provided with a coil spring mounting end 34, the shape of the coil spring mounting end 34 is matched with the shape of the curve gap, the coil spring mounting end 34 is clamped and mounted in the assembly gap 15 by interference fit, and the coil spring 3 is fixedly mounted on the mounting column 14. The junction between the coil spring storage section 33 and the coil spring mounting end 34 is provided with two mounting columns 14, the opposite surfaces of the two mounting columns 14 are arc-shaped, and the arc-shaped surfaces have a guiding effect on the leading direction of the coil spring storage section 33.

[0058] Please refer to Figure 4 、 Figure 5 、 Figure 10 and Figure 11 , further, the wire harness 2 tensioning structure further comprises a rotating wheel 4, the rotating wheel 4 is installed on the wire outlet 12 of the wire storage cavity 11, the rotating wheel 4 is provided with two or more, at least two adjacent rotating wheels 4 form a rotating wheel gap 41, and the wire harness 2 is arranged in 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 is a stepped section of revolution body, a plurality of rotating wheel mounting columns 16 are arranged on one side of the wire outlet 12 of the door module 9, and the rotating wheel 4 is mounted on the outer side of each rotating wheel mounting column 16. A plurality of elastic buckles 161 are arranged on the upper end of the rotating wheel mounting column 16, the buckles 161 are assembled with the rotating wheel 4 by interference, so that the rotating wheel 4 and the wire harness 2 have no vibration noise in the non-contact area, and preferably, the buckles 161 are three. With this structure, not only the hard friction between the wire harness 2 and the rotating wheel 4 is small, but also the service life of the wire harness 2 is improved, and the rotating wheel gap 41 has a constraint and guiding effect on the wire harness 2, preventing the wire harness 2 from coming out of the rotating wheel 4 and preventing the wire harness 2 from being tangled.

[0059] Please refer to Figure 14, further, the wire harness 2 is at least partially 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. Specifically, the wire harness 2 is integrated by a plurality of wires, and the wire harness 2 further includes a first wire segment 22, a bushing 23, a second wire segment 24, a third wire segment 25, a first plug-in interface 26, and a second plug-in interface 27. One end of the second wire segment 24 is mounted to the bushing 23, and the other end is mounted to the fixed rotary joint 21; one end of the first wire segment 22 is mounted to the bushing 23, and the other end is connected to the first plug-in interface 26; one end of the third wire segment 25 is mounted to the fixed rotary joint 21, and the other end is connected to the second plug-in interface 27; and the first plug-in interface 26, the second wire segment 24, and the second plug-in interface 27 are in electrical communication. Preferably, the wires in the second wire segment 24 are divided into three small bundles, which are arranged side by side to form a flat wire harness, and 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, which avoids integrating N wires into a circular wire harness. The circular wire harness not only has a large volume, but also has a large difference in bending radius between the inside wires and the outside wires when bending, which easily causes the outside wires to break and the outside protective layer to wear. This structure avoids the shortcomings of single-layer or multi-layer arrangement of wires, which causes the wire harness 2 to have a large size in a single direction and is not conducive to the layout of the interior space of the vehicle door. Preferably, the outer diameter of the wires of the first wire segment 22 and the outer diameter of the wires of the third wire segment 25 are equal and greater than the outer diameter of the wires of the second wire segment 24. By changing the outer diameter of the wires, 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 layout space of the vehicle window. The wires of the first wire segment 22 and the wires of the second wire segment 24 are first connected in electrical communication by welding, and the welding area of each wire is covered with an insulating cloth, and then the first wire segment 22 and the second wire segment 24 are connected by injection molding with a mold, which enhances the strength of the connection. After being inserted and mounted in the bushing 23, the first plug-in interface 26 is mounted and connected. Similarly, the wires of the second wire segment 24 and the wires of the third wire segment 25 are mounted in the fixed rotary joint 21. Preferably, the side of the second wire segment 24 that is in contact with the coil spring 3 is provided with a coil spring groove 241, and the coil spring 3 is in contact with 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 less likely to come off the wire harness 2.

[0060] The fixed rotary joint 21 is mounted in the mounting hole 13, and the third wire segment 25 passes through the mounting hole 13, i.e., the third wire segment 25 passes through the vehicle door module 9 from the mounting hole 13 to the other side of the vehicle door module 9. After the third wire segment 25 is mounted in the mounting hole 13, it not only serves to fix the fixed rotary joint 21 and achieve the connection between the wire harness 2 and the inside and outside of the vehicle door module 9, but also has a waterproof and dustproof function.

[0061] Please refer to Figure 12 and Figure 13Further, the shell 1 is further provided with a wire storage cover 17 which covers the wire storage cavity 11. Specifically, a plurality of clamping blocks 115 are arranged on the first wire storage cavity wall 111 and the second wire storage cavity wall 112 at intervals, and a clamping hole 171 which cooperates with the clamping blocks 115 is arranged on the wire storage cover 17, so that the wire storage cover 17 is quickly installed and fixed above the wire storage cavity 11, thereby not only protecting the internal components of the wire storage cavity 11, but also limiting 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] Please refer to Figure 15 A wire harness tensioning lifter includes a wire harness 2 tensioning structure, and a driving component 5 and a lifting component 6 are further arranged on the door module 9. The output end of the driving component 5 is connected with the lifting component 6, one end of the wire harness 2 is installed on the lifting component 6, the driving component 5 drives the lifting component 6 to slide, and drives the wire harness 2 to extend or retract into the wire storage cavity 11. Specifically, the prior art of the window lifter is adopted, the driving component 5 includes a winding wheel seat 51, a winding wheel 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 installed on the door module 9, and the bracket 61 is slidingly installed on the guide rail 62 and slides along the guide rail 62. The bracket 61 is clamped and fixed to the window glass clamp, the bushing 23 is fixedly installed on the bracket 61, and the first plug-in port 26 is electrically connected with the power receiving interface of the window glass. The fixed rotary joint 21 is fixedly installed in the mounting hole 13, the third wire segment 25 passes through the mounting hole 13, so that the second plug-in port 27 is electrically connected with the power supply interface of the window, and the second wire segment 24 is arranged between the power receiving interface of the window glass and the power supply interface of the window, thereby realizing the electrical connection between the functional glass and the power supply.

[0063] The winding wheel seat 51 is fixedly installed on the door module 9, the winding wheel 52 is rotatably installed in the winding wheel seat 51, the cable 53 is wound around the winding wheel 52, and the motor 54 is installed on the door module 9, and the output end thereof is connected with the winding wheel 52. The motor 54 is started to rotate, drives the winding wheel 52 to wind or unwind the cable 53, and drives the bracket 61 to move up and down along the preset guide rail 62. The bracket 61 is connected with the wire harness 2 through the bushing 23, the coil spring 3 provides a preset tension to the wire harness 2, so that the wire harness 2 moves up and down with the bracket 61, the winding and unwinding function of the wire harness 2 is completed, and the coil spring 3 keeps the wire harness 2 in a taut state.

[0064] The coil spring 3 is arranged in the wire storage cavity 11, the coil spring 3 is opened by the elastic force of the coil spring 3, the coil spring 3 exerts a pressing force on the wire harness 2, the wire harness 2 is immediately pulled back into the wire storage cavity 11, the coil spring 3 is retracted in cooperation when the wire harness 2 is stretched out of the wire storage cavity 11, the coil spring 3 not only provides a tensioning force for the movement of the wire harness 2, but also stores energy for the coil spring 3, the wire harness 2 always has a tendency to be tight, and the problem that the wire harness 2 may sway and hit the door module 9 to produce an abnormal sound or the wire harness 2 is wound around other installation parts of the window during the lifting process is avoided. The first wire storage cavity wall 111 and the second wire storage cavity wall 112 surrounded by the first wire storage cavity wall 111 are arranged in the wire storage cavity 11, the extension or retraction of the coil spring 3 is guided when the coil spring 3 is wound or unwound, the extension part of the coil spring 3 does not interfere with and scratch the wire harness 2, and the service life of the wire harness 2 is improved. The coil spring 3 comprises a limiting lug 31, a coil spring support section 32 and a coil spring force storage section 33, the limiting function of the coil spring 3 is realized, the coil spring 3 is prevented from moving in different directions due to falling out, the coil spring 3 is smoothly extended and retracted, the coil spring 3 is prevented from being stuck, the coil spring 3 provides a supporting force, a rotary torque and a pre-tightening force for the wire harness 2, the wire harness 2 is smoothly wound and unwound, the risk of disordered wires is eliminated, and the risk of hitting and producing an abnormal sound is eliminated. The wire harness 2 comprises a fixed rotary joint 21, the wire harness 2 is led out at the fixed rotary joint 21 in the direction of the common tangent line of the coil spring circle and the fixed rotary joint circle, rather than the center of the fixed rotary joint 21, the swing amplitude of the wire harness 2 is reduced, and the service life of the wire harness 2 is prolonged. The roller gap 41 is arranged, the wire harness 2 has small hard friction with the roller, the service life of the wire harness 2 is improved, the roller gap 41 has a guiding effect on the wire harness 2, the wire harness 2 is prevented from falling out of the roller 4 and from being disordered. The lifter is arranged, the wire harness 2 is driven to rise and fall on the door module 9, and the window glass is moved up and down.

[0065] The above specific embodiments further illustrate the purpose, technical scheme and advantages of the utility model, and it should be understood that the above description is only a specific implementation method of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the purpose of the utility model should be included in the protection scope of the utility model.

Claims

1. A wire harness tensioning structure characterized by, The application relates to a wire harness tensioning structure. The application comprises: a shell (1) arranged on a door module (9), wherein the shell (1) is provided with a wire storage cavity (11); a wire harness (2) with one end fixedly arranged in the wire storage cavity (11) and the other end exposed outside the wire storage cavity (11); and a coil spring (3) arranged in the wire storage cavity (11), wherein the coil spring (3) is pressed against the wire harness (2) along the length direction of the wire harness (2) by the elastic force of the coil spring (3); 2. The harness tensioning structure according to claim 1, characterized by, when the wire harness (2) is stretched out or retracted into the wire storage cavity (11), the coil spring (3) is correspondingly retracted or expanded, and the wire harness (2) is in a tensioned state due to the tension provided by the coil spring (3).

3. The harness tensioning structure according to claim 2, characterized by, 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) annularly surrounds the second wire storage cavity wall (112), 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).

4. The harness tensioning structure according to claim 3, characterized by The wire storage cavity (11) is provided with a mounting hole (13) located at the end of the second wire storage cavity wall (112), and one end of the coil spring (3) is provided with a limiting lug (31), wherein the size of the limiting lug (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).

5. The harness tensioning structure according to claim 4, characterized by The wire harness (2) comprises a fixed rotary joint (21) fixedly arranged in the mounting hole (13), and the wire storage cavity (11) is further provided with a mounting column (14), one end of the coil spring (3) is fixedly arranged on the mounting column (14), and after the wire harness (2) and the coil spring (3) are arranged, 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 circle.

6. The harness tensioning structure according to claim 4 or 5, characterized by, The coil spring (3) further comprises a coil spring supporting section (32) and a coil spring force storage section (33), one end of the coil spring supporting section (32) is connected with the limiting lug (31), the other end of the coil spring supporting section (32) is connected with the coil spring force storage section (33), the other end of the coil spring force storage section (33) is fixedly arranged on the mounting column (14), the spiral directions of the two sections are opposite, and the coil spring supporting section (32) is pressed against one side of the wire harness (2).

7. The harness tensioning structure according to claim 1, 2, 3, 4, or 5, characterized by, The mounting column (14) is provided with two or more than two, and the two mounting columns (14) at the position where the coil spring (3) is led out are arc-shaped.

8. The harness tensioning structure according to claim 1, 2, 3, 4, or 5, characterized by, The application further comprises rotating wheels (4) arranged at the wire outlets (12) of the wire storage cavities (11), the rotating wheels (4) are provided with two or more than two, and the rotating wheel gaps (41) are formed between two adjacent rotating wheels (4), and the wire harness (2) is arranged in the rotating wheel gaps (41).

9. The harness tensioning structure according to claim 1, 2, 3, 4, or 5, characterized by, The shell (1) is further provided with a wire storage cover (17) covering the wire storage cavity (11).

10. A line tensioning lifter characterized by, The wire harness (2) is at least partially 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). The application further comprises the wire harness tensioning structure according to any one of claims 1 to 9, and the door module (9) is further provided with a driving component (5) and a lifting component (6), the output end of the driving component (5) is connected with the lifting component (6), one end of the wire harness (2) is arranged on the lifting component (6), the driving component (5) drives the lifting component (6) to slide, and drives the wire harness (2) to stretch out of the wire storage cavity (11).

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