Slide rail wire harness arrangement device

Abstract

The utility model belongs to the technical field of sliding rails, and particularly relates to a sliding rail wire harness arrangement device which comprises a lower rail, an upper rail arranged in a sliding groove of the lower rail in a sliding mode and a lead screw, a motor drives a worm gear to rotate on the lead screw to drive the upper rail to move relative to the lower rail, and the lead screw is located on one side in the sliding groove of the lower rail. A corrugated pipe is installed in a sliding groove slit on the same side of the lead screw through a support fixed to the middle section of the upper rail, one end of a wire harness supplying power to the motor is electrically connected with the motor through a plug and then led into the corrugated pipe, and the other end of the wire harness is led out of the corrugated pipe and led out of a wire harness telescopic box. The structure is simple, the wire harness does not generate abnormal sound or even clamping stagnation when stretching out and drawing back in the corrugated pipe, and the structure is suitable for wire harness arrangement of the seat sliding rail.

Description

TECHNICAL FIELD

[0001] The utility model belongs to slide rail technical field especially relates to a slide rail wire harness arrangement device. BACKGROUND

[0002] Due to the problems of seat long slide rail driven by gear and rack such as start delay, sliding unevenness, lock delay, currently long slide rail has generally used screw rod transmission, the basic principle of screw rod transmission is that motor drives flexible shaft to drive gear box, gear box contains worm wheel and worm, wherein worm wheel has internal thread and is engaged with screw rod.

[0003] In order to optimize the noise performance of screw rod transmission, a kind of driving component connecting structure is that motor is vertically arranged above slide rail, flexible shaft is directly connected with motor and vertically downward passes through the slit of lower rail and then is directly connected with gear box, the screw rod of this connecting mode is deviated to one side of lower rail, leading to that the space of this side is narrow, and wire harness arrangement is difficult or wire harness arrangement is too little.

[0004] Therefore, the wire harness arrangement of screw rod offset long slide rail is usually arranged in the space of the side of lower rail that is larger, and tank chain is arranged in the space of the tank chain cavity, and wire harness is accommodated in the space of the tank chain cavity. But this wire harness arrangement scheme has the following disadvantages: after foreign matter falls into the cavity of lower rail, it can be stuck in tank chain, leading to durability failure of tank chain or wire harness, foreign matter can be attached to screw rod through tank chain, leading to sliding abnormal sound or even jam of slide rail, in addition, wire harness in tank chain can be seen through the slit of lower rail, leading to that dust and sundries are easy to enter, and user complaints are caused. SUMMARY

[0005] The utility model aims at providing a kind of slide rail wire harness arrangement device with simple structure, wire harness and screw rod isolation and high safety.

[0006] The utility model is solved as follows:

[0007] A kind of slide rail wire harness arrangement device, including lower rail, the upper rail and screw rod slid in the sliding slot of lower rail, the rotation of motor-driven worm wheel on screw rod drives the movement of upper rail relative to lower rail, the screw rod is located in one side of the sliding slot of lower rail, the same side of the sliding slot slit of screw rod is mounted with bellows by the support fixed on the middle section of upper rail, one end of wire harness for the motor power supply is introduced into the bellows after being electrically connected with motor by plug, the other end of wire harness is led out by bellows and led out through wire harness expansion box.

[0008] As further optimization of the above technical solution, one end of the bellows is fixed by the support close to the motor side, and other parts are positioned by the cavity of lower rail and screw rod, so that wire harness is separated from screw rod, wire harness leakage or foreign matter sticking is avoided, speed limit safety is ensured, and wire harness plug is connected to the other end of wire harness.

[0009] As a further optimization of the above technical solution, the bracket includes a lower bracket and an upper bracket fastened to the lower bracket, and the lower bracket and the upper bracket form the corrugated pipe mounting cavity.

[0010] As a further optimization of the above technical solution, the lower support is formed with a "U" shape on one side of the top plate, and the upper support is a buckle plate that is fastened to the "U" shape. The corner of the side wall of the "U" shape connecting the top plate and the top plate is smoothly transitioned to form an arc-shaped side that avoids the lead screw.

[0011] As a further optimization of the above technical solution, an installation cavity for installing the corrugated pipe is formed between the "U"-shaped body and the buckle plate.

[0012] As a further optimization of the above technical solution, the top plate of the lower bracket and the top plate of the upper bracket are formed with lead-out boxes for the wire harness, and the lead-out boxes are connected to the mounting cavity.

[0013] As a further optimization of the above technical solution, the wire harness telescopic box is installed on one side of the upper rail at the end of the lead screw.

[0014] As a further optimization of the above technical solution, the wire harness telescopic box is a racetrack-shaped box, and the inner cavity of the wire harness telescopic box has space for the wire harness to telescopically move.

[0015] As a further optimization of the above technical solution, the wire harness telescopic box is provided with an inlet / outlet and an outlet for the wire harness.

[0016] The outstanding advantages of this utility model compared to the prior art are:

[0017] 1. The bellows of this utility model can be bent freely, and the bellows is limited by the lower rail cavity wall and the lead screw.

[0018] 2. The wiring harness (corrugated tube) of this utility model is positioned far from the lower rail slit, which can avoid user complaints about appearance issues and the impact of foreign objects entering.

[0019] 3. This utility model utilizes the same narrow space, and the corrugated pipe can accommodate a significantly larger number of wire harnesses than the tank chain.

[0020] 4. The structure of this utility model is simple, the wire harness is isolated from the lead screw, and the safety is high. The wire harness will not make abnormal noise or even get stuck when it expands and contracts inside the corrugated tube. It is suitable for the wire harness arrangement of seat slide rails. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0022] Figure 2 This is a three-dimensional schematic diagram of the present invention after the wire harness telescopic box has been removed.

[0023] Figure 3 is a sectional view of the bracket of the utility model.

[0024] Figure 4 is a three-dimensional schematic view of the bracket of the utility model.

[0025] Figure 5 is an exploded view of the bracket of the utility model. DETAILED DESCRIPTION

[0026] The utility model will be further described in conjunction with the drawings with specific embodiments, referring to Figures 1-5 :

[0027] A slide rail wire harness 30 arrangement device, including lower rail 10, upper rail 20 and screw rod 22 of the slide groove 11 in lower rail 10, motor 21 drives the rotation of worm wheel on screw rod 22 and drives the movement of upper rail 20 relative to lower rail 10, the screw rod 22 is located in the slide groove 11 of lower rail 10 on one side, the slide groove 11 slit on the same side of screw rod 22 is provided with bellows 33 through the bracket fixed on the middle section of upper rail 20, one end of bellows 33 is fixed by the bracket near the motor 21 side, the other side is fixed on the lower rail 10 of the end of screw rod 22, one end of wire harness 30 for the motor 21 is introduced into the bellows 33 after being electrically connected with motor 21 through plug 31, the other end of wire harness 30 is led out through wire harness expansion box 40.

[0028] As a further optimization of the above technical solution, one end of the bellows 33 is fixed by the bracket near the motor side, and the other parts are positioned by the inner cavity of the lower rail 10 and the screw rod 22, and the other end of the wire harness 30 is connected with the wire harness plug 32.

[0029] As a further optimization of the above technical solution, the bracket includes a lower bracket 50 and an upper bracket 60 buckled on the lower bracket 50, the upper bracket 60 is connected with the lower bracket 50 through the buckle 62 and the clamping groove 51, and the mounting cavity 52 of the bellows 33 is formed between the lower bracket 50 and the upper bracket 60.

[0030] As a further optimization of the above technical solution, the lower bracket 50 is formed with a "U" shaped body on one side of the top plate 53, the upper bracket 60 is a buckle plate buckled on the "U" shaped body, and the corner of the "U" shaped body side wall connected with the top plate 53 is smoothly transitioned to form an arc side 54 avoiding the screw rod 22.

[0031] As a further optimization of the above technical solution, the "U" shaped body and the buckle plate form the mounting cavity 52 mounting the bellows 33.

[0032] As a further optimization of the above technical solutions, the top plate 53 of the lower support 50 and the top plate 61 of the upper support 60 are formed with the lead-out box 70 of the wire harness 30, the lead-out box 70 is communicated with the mounting cavity 52, so as to facilitate the lead-out of the wire harness 30.

[0033] As a further optimization of the above technical solutions, the wire harness expansion box 40 is installed on one side of the upper rail 20 at the end of the lead screw 22.

[0034] As a further optimization of the above technical solutions, the wire harness expansion box 40 is a runway type box body, and the inner cavity 43 of the wire harness expansion box 40 has a space for the expansion and contraction of the wire harness 30.

[0035] As a further optimization of the above technical solutions, the wire harness expansion box 40 is provided with an inlet and outlet 41 and an outlet 42 of the wire harness 30.

[0036] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still make simple replacements or modifications to the technical solutions or technical features recorded in the foregoing embodiments with similar technologies, and these simple replacements or modifications do not make the essence of the corresponding technical solutions deviate from the spirit and essence of the technical solutions of the embodiments of the present application, and still within the protection scope of the present application.

Claims

1. A sliding rail wire harness arrangement device, comprising a lower rail, an upper rail slidably disposed in a groove of the lower rail, and a lead screw, wherein a motor drives a worm gear to rotate on the lead screw, thereby causing the upper rail to move relative to the lower rail, characterized in that: The screw rod is located in one side of the sliding slot of the lower rail, the same side of the screw rod is installed with the bellows through the bracket fixed on the middle section of the upper rail, one end of the wire harness for the motor is introduced into the bellows after the electric connection with the motor through the plug, and the other end of the wire harness is led out from the bellows through the wire harness expansion box.

2. The slide wire harness arrangement of claim 1, wherein: One end of the bellows is fixed by the bracket near the motor side, and the other parts are positioned by the screw rod through the inner cavity of the lower rail.

3. The slide wire harness arrangement of claim 1, wherein: The bracket comprises a lower bracket and an upper bracket buckled on the lower bracket, and the mounting cavity of the bellows is formed between the lower bracket and the upper bracket.

4. The slide wire bundle arrangement of claim 3, wherein: The lower bracket is a "U" shaped body formed on one side of the top plate, the upper bracket is a buckle plate buckled on the "U" shaped body, and the corner of the side wall of the "U" shaped body connected with the top plate is smoothly transitioned to form an arc-shaped side surface avoiding the screw rod.

5. A slide wire harness arrangement according to claim 4, wherein: The mounting cavity of the bellows is formed between the "U" shaped body and the buckle plate.

6. A slide wire harness arrangement according to claim 5, wherein: The lead-out box of the wire harness is formed on the top plate of the lower bracket and the top plate of the upper bracket, and the lead-out box is communicated with the mounting cavity.

7. The slide wire harness arrangement of claim 1, wherein: The wire harness expansion box is installed on one side of the upper rail at the end of the screw rod.

8. The slide wire harness arrangement of claim 1, wherein: The wire harness expansion box is a runway type box body, and the inner cavity of the wire harness expansion box has a space for the expansion of the wire harness.

9. The slide wire harness arrangement of claim 1, wherein: The wire harness expansion box is provided with an inlet and an outlet of the wire harness and an outlet. The wire harness expansion box is installed on one side of the upper rail at the end of the screw rod. The wire harness expansion box is a runway type box body, and the inner cavity of the wire harness expansion box has a space for the expansion of the wire harness. The wire harness expansion box is provided with an inlet and an outlet of the wire harness and an outlet.

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