Automobile wire harness connector with protection structure

Abstract

The invention relates to an automobile wire harness connector with a protection structure, which is applied to the field of wire harnesses, through the arrangement of a protection unit, a protection layer which can be tightened along with the bending of the wire harness can be formed outside the wire harness, and when the wire harness is bent along with the opening and closing of a door body or a trunk cover of a vehicle, the tightened protection layer enables the overall hardness of the connector to be improved, so that the wire harness is prevented from being damaged. Under the action of the same bending force, the bending amplitude is reduced, and the span of the bending area is increased, so that the bending amplitude of the wire harness in the wire harness is smaller, a good protection effect on the wire harness is achieved, and meanwhile, under the action of a plurality of restraining bundle rings, when the single-time bending amplitude of the wire harness is too large, the wire harness can be prevented from being damaged. The middle of the restraining clamp ring can be progressively changed from elastic connection to hard contact, so that forced bending restraining of the corrugated pipe is achieved, and the outer protection layer is effectively assisted in restraining the bending amplitude of the wire harness in the guiding pipe.

Description

Technical Field

[0001] The present invention relates to an automobile wiring harness connector, in particular to an automobile wiring harness connector with a protective structure applied in the wiring harness field. Background Art

[0002] A wiring harness is a collection of service equipment that serves a specific group of load sources, such as relay lines, switching devices, and control systems. To secure the sensor's wiring harness to a vehicle, a current approach involves forming a certain-shaped wiring harness sheath on the wiring harness, providing a mounting slot on the wiring harness sheath, and then securing the wiring harness to the vehicle by installing sheet metal in the mounting slot. This wiring harness sheath is known as a wiring harness connector. In the prior art, wiring harness connectors generally have rigid guide tubes at both ends and a bendable corrugated tube, rubber tube, or fiber braided layer in the middle. For example, the wiring harness through-hole sheath disclosed in Chinese Patent Specification No. CN113690819A and the cable harness disclosed in Chinese Patent Specification No. CN101958497BC have a bendable middle portion, allowing the wiring harness to have a certain degree of mobility to accommodate some movable parts on a vehicle, such as wiring harnesses installed in a vehicle door or trunk lid.

[0003] When the door or trunk lid opens and closes, the wiring harness will bend with the vehicle body. However, the bellows on the sheath only serves to gather the wiring harness and prevent it from moving. Although the sheath can provide some protection during bending, the wiring harness will still bend with the sheath inside it, resulting in the risk of damage after a long time, affecting the signal transmission between the wiring harness and the vehicle's central control. Summary of the Invention

[0004] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing wiring harness connector has limited protection effect on the internal wiring harness and is still easily damaged after being subjected to dynamic bending force for a period of time.

[0005] To solve the above problems, the present invention provides an automotive wiring harness connector with a protective structure, comprising two guide tubes, a corrugated tube located between the two guide tubes, and two mounting rings respectively fixedly connected to the ends of the guide tubes, end rings are fixedly connected between the two ends of the corrugated tube and the corresponding guide tubes, the corrugated tube and the outer ends of the two guide tubes are provided with a protective unit, the protective unit comprises an outer protective layer located outside the corrugated tube and two regulating sleeves respectively located at the outer ends of the two guide tubes, the regulating sleeve comprises a fixed suction plate fixedly connected to the guide tube, a dynamic slide movably sleeved outside the guide tube, and an external ring bag fixedly connected between the fixed suction plate and the dynamic slide, the fixed suction plate faces one side of the corrugated tube, and the fixed suction plate and the end rings are fixed to each other, the end of the outer protective layer is fixedly connected to the fixed suction plate, an adjustment gap is formed between the outer protective layer and the corrugated tube, a plurality of transition holes are opened on the fixed suction plate, the plurality of transition holes connect the external ring bag and the adjustment gap, the interior of the external ring bag and the adjustment gap are saturated with deionized water.

[0006] In the above-mentioned automotive wiring harness connector with a protective structure, a protective layer can be formed outside the wiring harness through the setting of the protective unit, which can be tightened as the wiring harness bends. When the wiring harness bends with the opening and closing of the vehicle door or trunk lid, the tightened protective layer increases the overall hardness of the connector, so that under the same bending force, its bending amplitude becomes smaller and the span of the bending area becomes larger, thereby reducing the bending amplitude of the wiring harness inside, thereby providing good protection for the wiring harness.

[0007] As a further improvement of the present application, the fixed suction plate is made of electromagnetic material, and the moving skateboard is made of ferromagnetic material. When the fixed suction plate is energized, it generates magnetic attraction on the moving skateboard. The signal switch for controlling the power on and off of the fixed suction plate is connected to the car's central control signal.

[0008] As a further improvement of the present application, the external annular capsule and the outer protective layer are both made of flexible sealing materials, and the outer diameter of the external annular capsule is larger than the outer diameter of the outer protective layer.

[0009] As a further improvement of the present application, multiple restraining rings are provided at multiple troughs near the middle of the corrugated tube. The restraining rings include multiple convergence arcs distributed in a circular array and two movable convergence ropes that pass through the multiple convergence arcs. The cross-section of the convergence arcs is completely matched with the troughs of the corrugated tube.

[0010] As a further improvement of the present application, the convergent arc strip includes two limiting petals, a dimensional interlayer clamped and embedded between the two limiting petals, and a connecting layer fixedly connected between the ends of the two limiting petals that are close to each other, and the cross-section of the dimensional interlayer is triangular.

[0011] As a further improvement of the present application, the drawstring is a non-elastic structure, the limiting flap is a hard structure, the connecting layer is made of rubber, and the dimensional interlayer is a high resilience structure.

[0012] As another improvement of the present application, a marking unit is further provided in the dimensional interlayer, and the marking unit includes a liquid-bearing sac fixedly embedded in the dimensional interlayer, a limiting rope fixedly connected between the liquid-bearing sac and the connecting layer, a hollow sheet attached to the surface of the dimensional interlayer, and a pre-opened clip fixedly connected between the liquid-bearing sac and the middle of the hollow sheet. The pre-opened clip connects the hollow sheet and the liquid-bearing sac, and both ends of the hollow sheet extend to the middle of the two limiting flaps respectively and are fixedly connected to the surface of the limiting flap.

[0013] As another improved supplement of the present application, the liquid capsule, the hollow sheet and the pre-opened clip are all double-layer sealed structures, and the two inner walls of the pre-opened clip are in contact with each other, and the outer protective layer and the hollow sheet are made of transparent material.

[0014] In summary, through the setting of the protection unit, a protective layer can be formed outside the wiring harness that can be tightened as the wiring harness bends. When the wiring harness is opened and closed by the vehicle door or trunk lid, the tightened protective layer increases the overall hardness of the connector, so that under the same bending force, its bending amplitude becomes smaller and the span of the bending area becomes larger, so that the bending amplitude of the wiring harness inside it is smaller, thereby having a good protective effect on the wiring harness. At the same time, under the action of multiple suppression rings, when the single bending amplitude of the wiring harness is too large, the middle part of the suppression ring itself can be progressively changed from elastic connection to hard contact, thereby realizing forced bending suppression at the corrugated tube, thereby effectively assisting the outer protective layer to suppress the bending amplitude of the wiring harness in the guide tube, and under the setting of the marking unit, the overall bending situation can also be marked, so that the user can set the suppression ring in a targeted manner in the easy-to-bend area, improve the protection effect, and reduce the use of suppression rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a perspective view of a wiring harness connector according to a first embodiment of the present application;

[0016] Figure 2 This is a perspective view of a wiring harness connector according to a first embodiment of the present application;

[0017] Figure 3 This is a perspective view of the wiring harness connector with the protective unit removed according to the first embodiment of the present application;

[0018] Figure 4 This is a top cross-sectional view of a wiring harness connector according to a first embodiment of the present application;

[0019] Figure 5 for Figure 4 Schematic diagram at A in the middle;

[0020] Figure 6 This is a schematic diagram of the first embodiment of the present application when the gap is adjusted to become harder and the thickness becomes thicker;

[0021] Figure 7 This is a bending comparison diagram when the protection unit is used and when the protection unit is not used in the first embodiment of the present application;

[0022] Figure 8 This is a front cross-sectional view of a wiring harness connector according to a second embodiment of the present application;

[0023] Figure 9 This is a radial schematic diagram of the suppression beam ring according to the second embodiment of the present application;

[0024] Figure 10 This is a front cross-sectional schematic diagram of a second embodiment of the present application;

[0025] Figure 11This is a schematic cross-sectional view of the inner side of the protection unit near the bending point after being subjected to a bending force in the second embodiment of the present application;

[0026] Figure 12 This is a schematic cross-sectional view of the restraining ring portion of the third embodiment of the present application;

[0027] Figure 13 This is a cross-sectional view of the third embodiment of the present application after the restraining ring is subjected to bending force.

[0028] Description of the numbers in the figure:

[0029] 11 guide tube, 12 bellows, 13 mounting ring, 14 end ring, 201 transition hole, 21 fixed suction plate, 22 dynamic slide plate, 23 external ring bag, 3 outer protective layer, 4 inhibition ring, 41 restraining rope, 42 restraining arc bar, 421 limiting petal, 422 dimensional interlayer, 423 connecting layer, 51 liquid bag, 52 hollow piece, 531 limiting rope, 532 pre-opening clip. DETAILED DESCRIPTION

[0030] The following describes three implementation methods of the present application in detail with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figure 1-3 An automotive wiring harness connector with a protective structure is shown, comprising two guide tubes 11, a corrugated tube 12 located between the two guide tubes 11, and two mounting rings 13 fixedly connected to the ends of the guide tubes 11. End rings 14 are fixedly connected between the two ends of the corrugated tube 12 and the corresponding guide tubes 11, and protective units are provided on the outer ends of the corrugated tube 12 and the two guide tubes 11.

[0033] like Figure 4-5 The protection unit includes an outer protective layer 3 located outside the bellows 12 and two regulating sleeves located at the outer ends of the two guide tubes 11 respectively. The regulating sleeve includes a fixed suction plate 21 fixedly connected to the guide tube 11, a movable slide 22 movably sleeved outside the guide tube 11, and an external ring bag 23 fixedly connected between the fixed suction plate 21 and the movable slide 22. The fixed suction plate 21 faces one side of the bellows 12, and the fixed suction plate 21 and the end ring 14 are fixed to each other. The end of the outer protective layer 3 is fixedly connected to the fixed suction plate 21. The fixed suction plate 21 is made of electromagnetic material. The slide plate 22 is made of ferromagnetic material, and the fixed suction plate 21 generates a magnetic attraction force on the dynamic slide plate 22 after being energized. The signal switch for controlling the power on and off of the fixed suction plate 21 is connected to the car central control signal. When the car central control obtains the opening and closing action of the door or trunk lid, the control signal switch is energized to energize the fixed suction plate 21, which can attract the dynamic slide plate 22, and then squeeze the external annular capsule 23, so that the deionized water inside can move into the adjustment gap, thereby changing the hardness between the outer protective layer 3 and the bellows 12, achieving the effect of suppressing bending, such as Figure 4-5 An adjustment gap is formed between the outer protective layer 3 and the bellows 12. A plurality of transition holes 201 are drilled on the fixed suction plate 21. The plurality of transition holes 201 connect the external annular capsule 23 and the adjustment gap. The inside of the external annular capsule 23 and the adjustment gap are saturated with deionized water.

[0034] like Figure 6-7 In the figure, a represents the wiring harness, b1 represents the span of the bending area when the wiring harness is bent under force in the prior art, b2 represents the span of the bending area when the wiring harness of the present application is subjected to the same bending force, c1 represents the bending amplitude of the wiring harness under force in the prior art, and c2 represents the bending amplitude of the wiring harness under force in the present application. When the wiring harness bends with the opening and closing of the vehicle door or trunk lid, the corresponding sensor feeds back the opening and closing signal to the vehicle central control, and the vehicle central control can control the signal switch of the fixed suction plate 21 to turn on, so that the fixed suction plate 21 is energized so that it can absorb the moving slide plate 22. It moves toward the fixed suction plate 21. During this process, the external annular bag 23 is squeezed, and the deionized water inside it tends to enter the adjustment gap along the transition hole 201, thereby increasing the tightness of the outer protective layer 3 and the hardness, so that the protective unit can form a protective layer outside the wiring harness that can be tightened as the wiring harness is bent. Under the same bending force, the bending amplitude becomes smaller due to the action of the tightened protective layer, and the span of the bending area becomes larger, so that the bending amplitude of the wiring harness inside it is smaller, thereby having a good protective effect on the wiring harness.

[0035] like Figure 6 The external annular capsule 23 and the outer protective layer 3 are both made of flexible sealing materials, and the outer diameter of the external annular capsule 23 is larger than the outer diameter of the outer protective layer 3, which effectively ensures that after the external annular capsule 23 is squeezed, the deionized water inside it enters the adjustment gap, which will cause the adjustment gap to swell and the thickness to increase. At the same time, due to its flexibility, it is not easy to undergo large deformation, so that the change in radial thickness is relatively small, and then its hardness gradually increases, so that the outer protective layer 3 outside the corrugated tube 12 can form a protective layer that can be tightened as the wire harness is bent.

[0036] Second implementation method:

[0037] This embodiment is based on the first embodiment, and a suppression beam ring is added. The rest of the parts remain the same as the first embodiment.

[0038] like Figure 8-9 , multiple troughs near the middle of the bellows 12 are sleeved with multiple restraining rings 4, which include multiple convergence arcs 42 distributed in a ring array and two restraining ropes 41 that move through the multiple convergence arcs 42. The cross-section of the convergence arc 42 is completely matched with the trough of the bellows 12, such as Figure 10The convergence arc strip 42 includes two limiting petals 421, a dimensional sandwich 422 clamped and embedded between the two limiting petals 421, and a connecting layer 423 fixedly connected between the ends of the two limiting petals 421 close to each other. The cross section of the dimensional sandwich 422 is triangular, the constriction rope 41 is a non-elastic structure, the limiting petals 421 are a hard structure, the connecting layer 423 is made of rubber, and the dimensional sandwich 422 is a high resilience structure. If the bending is too large, the overall thickness of the corrugated tube 12 and the outer sheath 3 is increased, and the bending suppression effect after the hardness changes is still difficult to limit its bending amplitude, as the bending continues, such as Figure 11 Under the action of the bending force, the restraining ring 4 at the bend squeezes the converging arc strip 42 near the inner side of the bending point toward the middle, so that the dimensional interlayer 422 is squeezed. As the extrusion amplitude increases, its density gradually increases, so that the distance between the two limiting petals 421 gradually decreases, and gradually presents a hard resistance, thereby achieving the effect of forcibly suppressing the bending amplitude, making it difficult for the wire harness inside to continue to bend. Compared with the existing technology, the protection effect of the internal wire harness is greatly improved.

[0039] In summary, through the setting of the protection unit, a protective layer can be formed outside the wiring harness that can be tightened as the wiring harness bends. When the wiring harness bends as the vehicle door or trunk lid opens and closes, the tightened protective layer increases the overall hardness of the connector, so that under the same bending force, its bending amplitude becomes smaller and the span of the bending area becomes larger, so that the bending amplitude of the wiring harness inside it is smaller, thereby having a good protective effect on the wiring harness. At the same time, under the action of multiple suppression rings 4, when the single bending amplitude of the wiring harness is too large, the middle part of the suppression ring 4 itself can be progressively changed from an elastic connection to a hard connection, thereby realizing forced bending suppression at the corrugated tube 12, thereby effectively assisting the outer protective layer 3 to suppress the bending amplitude of the wiring harness in the guide tube 11.

[0040] The third implementation method:

[0041] This embodiment is based on the second embodiment, with a new marking unit, and the rest of the embodiment remains the same as the second embodiment.

[0042] Figure 12As shown, a marking unit is also provided in the dimensional interlayer 422, and the marking unit includes a liquid capsule 51 fixedly embedded in the dimensional interlayer 422, a limiting rope 531 fixedly connected between the liquid capsule 51 and the connecting layer 423, a hollow sheet 52 attached to the surface of the dimensional interlayer 422, and a pre-opened clip 532 fixedly connected between the liquid capsule 51 and the middle of the hollow sheet 52. The pre-opened clip 532 connects the hollow sheet 52 and the liquid capsule 51. The two ends of the hollow sheet 52 extend to the middle of the two limiting flaps 421 and are fixedly connected to the surface of the limiting flap 421. The liquid capsule 51, the hollow sheet 52 and the pre-opened clip 532 are all double-layer sealing structures, and the two inner walls of the pre-opened clip 532 fit each other. The outer protective layer 3 and the hollow sheet 52 are made of transparent material. Figure 13 As the number of times the car door and trunk lid are opened and closed increases, the two limiting flaps 421 near the inner side of the bend approach each other and squeeze the dimensional interlayer 422 therebetween, which will cause the liquid bag 51 to be compressed, and then the pre-opening clip 532 is stretched open, so that the color liquid in the liquid bag 51 enters the hollow piece 52 along the pre-opening clip 532, so that the hollow piece 52 is immersed in a certain amount of color liquid. During subsequent vehicle maintenance, the staff can effectively judge the easy-to-bend area based on the color liquid conditions on the surfaces of multiple restraining rings 4, and then subsequently remove the restraining rings 4 in the difficult-to-bend area in a targeted manner, and set multiple restraining rings 4 in the easy-to-bend area in a targeted manner, thereby improving the protection effect, reducing the number of restraining rings 4 used, saving costs, and facilitating targeted maintenance.

[0043] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. An automotive wiring harness connector with a protective structure, comprising two guide tubes (11), a corrugated tube (12) located between the two guide tubes (11), and two mounting rings (13) fixedly connected to the ends of the guide tubes (11), wherein end rings (14) are fixedly connected between the ends of the corrugated tubes (12) and the corresponding guide tubes (11), characterized in that: The outer ends of the bellows (12) and the two guide tubes (11) are provided with a protective unit, the protective unit comprising an outer protective layer (3) located outside the bellows (12) and two control sleeves respectively located at the outer ends of the two guide tubes (11), the control sleeve comprising a fixed suction plate (21) fixedly connected to the guide tube (11), a movable slide plate (22) movably sleeved outside the guide tube (11), and an external annular bag (23) fixedly connected between the fixed suction plate (21) and the movable slide plate (22). The plate (21) faces one side of the bellows (12), and the fixed suction plate (21) and the end ring (14) are fixed to each other. The end of the outer protective layer (3) is fixedly connected to the fixed suction plate (21), and an adjustment gap is formed between the outer protective layer (3) and the bellows (12). A plurality of transition holes (201) are drilled on the fixed suction plate (21), and the plurality of transition holes (201) are connected to the external annular capsule (23) and the adjustment gap. The interior of the external annular capsule (23) and the adjustment gap are both saturated and filled with deionized water.

2. The automotive wiring harness connector with a protective structure according to claim 1, characterized in that: The fixed suction plate (21) is made of electromagnetic material, and the movable slide plate (22) is made of ferromagnetic material. When the fixed suction plate (21) is energized, a magnetic attraction force is generated on the movable slide plate (22). A signal switch for controlling the on / off power of the fixed suction plate (21) is connected to a central control signal of the vehicle.

3. The automotive wiring harness connector with a protective structure according to claim 1, characterized in that: The external annular capsule (23) and the outer protective layer (3) are both made of a flexible sealing material, and the outer diameter of the external annular capsule (23) is greater than the outer diameter of the outer protective layer (3).

4. The automotive wiring harness connector with a protective structure according to claim 1, characterized in that: A plurality of restraining rings (4) are sleeved on a plurality of troughs near the middle of the bellows (12), and the restraining rings (4) include a plurality of convergence arcs (42) distributed in a circular array and two convergence ropes (41) that are movable and pass through the plurality of convergence arcs (42), and the cross-section of the convergence arcs (42) is completely matched with the troughs of the bellows (12).

5. The automotive wiring harness connector with a protective structure according to claim 4, characterized in that: The convergent arc strip (42) comprises two limiting petals (421), a dimensional sandwich (422) clamped and embedded between the two limiting petals (421), and a connecting layer (423) fixedly connected between the ends of the two limiting petals (421) that are close to each other, wherein the cross-section of the dimensional sandwich (422) is triangular.

6. The automotive wiring harness connector with a protective structure according to claim 5, characterized in that: The drawstring (41) is a non-elastic structure, the limiting flap (421) is a hard structure, the connecting layer (423) is made of rubber, and the dimensional interlayer (422) is a high resilience structure.

7. The automotive wiring harness connector with a protective structure according to claim 1, characterized in that: A marking unit is further provided in the dimensional interlayer (422), the marking unit comprising a liquid-bearing sac (51) fixedly embedded in the dimensional interlayer (422), a limiting rope (531) fixedly connected between the liquid-bearing sac (51) and the connecting layer (423), a hollow sheet (52) attached to the surface of the dimensional interlayer (422), and a pre-opened clip (532) fixedly connected between the liquid-bearing sac (51) and the middle of the hollow sheet (52), the pre-opened clip (532) communicating with the hollow sheet (52) and the liquid-bearing sac (51), and two ends of the hollow sheet (52) respectively extending to the middle of the two limiting flaps (421) and fixedly connected to the surface of the limiting flaps (421).

8. The automotive wiring harness connector with a protective structure according to claim 7, characterized in that: The liquid sac (51), the hollow sheet (52), and the pre-opened clip (532) all have a double-layer sealing structure, and the two inner walls of the pre-opened clip (532) are in contact with each other. The outer protective layer (3) and the hollow sheet (52) are made of transparent material.

Images