WO2020042747A1

WO2020042747A1 - Automobile seat electric ground rail system

Info

Publication number: WO2020042747A1
Application number: PCT/CN2019/094229
Authority: WO
Inventors: 张江林; 蒋红辉; 范业帝; 贺龙辉; 陶惠家
Original assignee: 延锋安道拓座椅有限公司
Priority date: 2018-08-29
Filing date: 2019-07-01
Publication date: 2020-03-05
Also published as: CN109094432B; CN109094432A

Abstract

An automobile seat electric ground rail system comprises: a pair of auxiliary support rails (100, 100a) fixed on an automobile body floor and parallel to each other, a cable harness rail (200), a power distribution harness (250) capable of being extended or retracted and disposed in the cable harness rail (200); a seat fixing frame (300) fixedly connected to a seat, the seat fixing frame (300) also being fixedly connected to an upper slide rail of each auxiliary support rail (100, 100a); a travel mechanism (400) and an unlocking driving mechanism (500) mounted on the seat fixing frame (300) and used to drive, via the seat fixing frame (300), the seat to move back and forth, and a driving wheel (445) in the travel mechanism (400) to rotatably travel on the cable harness rail (200) and/or the auxiliary support rails (100, 100a); and the unlocking driving mechanism (500) connected to a locking mechanism on the pair of auxiliary support rails (100, 100a) via a synchronization unlocking rod (550) connected to the unlocking driving mechanism (500), and used to drive the locking mechanism to perform unlocking, the travel mechanism (400) and the unlocking driving mechanism (500) being connected to an automobile body control system via the distribution harness (250), and being controlled by the automobile body control system. The automobile seat electric ground rail system provides an extra-large adjustment stroke electric ground rail transmission solution and power supply solution.

Description

Electric seat slide rail system for automobile seat

Technical field

The present invention relates to the technical field of automobile parts, and in particular to an electric seat rail system for automobile seats.

Background technique

With the development of automotive technology and the increase in consumer comfort requirements for cars, with the rapid sales of large space models such as MPVs in recent years and the development of driverless cars in the future, the market has The need for chairs with large stroke adjustment and multiple rows of seat common rails will be a trend, so the development of technology for large stroke ground slides is also in line with market demand, especially the need for large stroke ground slides with electric adjustment. However, the electric ground slide technology is different from the traditional short slide technology. Its unique application field and its long adjustment stroke limit its unique structure. At the same time, it also puts forward new performance requirements for the ground slide, especially the electric ground slide. Traditional power supply system for rails.

Summary of the Invention

The technical problem to be solved by the present invention is to provide an electric seat slide rail system for a car seat in response to the shortcomings of the existing short slide rail system.

The technical problem to be solved by the present invention can be achieved by the following technical solutions:

An electric seat slide rail system for a car seat includes:

A pair of auxiliary support rails fixed on the body floor and parallel to each other;

A wire harness rail fixed on the vehicle body floor; an extension or shortening power distribution wire harness is arranged in the wire harness rail;

A seat fixing frame fixedly connected to the seat, the seat fixing frame is also fixedly connected to an upper slide rail in each auxiliary support rail;

A running mechanism mounted on the seat fixing frame and driving the seat forward and backward through the seat fixing frame, the driving wheels in the running mechanism are on the harness rail or / and on the auxiliary support rail Rolling walking

An unlocking driving mechanism mounted on the seat fixing frame, the unlocking driving mechanism is connected with a locking mechanism on a pair of auxiliary support rails through a synchronous unlocking lever connected to the unlocking driving mechanism, and drives the lock Stopping mechanism unlocked;

The walking mechanism and the unlocking driving mechanism are connected to a vehicle body control system through a power distribution harness, and are controlled by the vehicle body control system.

In a preferred embodiment of the present invention, it further includes a wire harness connector fixed on the seat fixing frame, the wire harness connector is electrically connected to the first end of the power distribution wire harness and can run along the wire harness rail. Moving back and forth, the walking mechanism and the unlocking driving mechanism are connected to the vehicle body control system through a wire harness connector and a power distribution wire harness.

In a preferred embodiment of the present invention, it further includes a seat control system installed on a car seat. The seat control system is connected to the vehicle body control system through the wiring harness connector and the power distribution wiring harness. On the one hand, it is controlled and connected with the walking mechanism and the unlocking driving mechanism.

In a preferred embodiment of the present invention, it further includes a wire harness box fixed on the vehicle body floor, the wire harness box is used to store a power distribution wire harness, and the second end of the power distribution wire harness extends out of the wire harness box Connected to the body harness and connected to the body control system through the body harness.

In a preferred embodiment of the present invention, the walking mechanism further includes a frame supporting plate, a driving bracket, a spring, at least one driving wheel that rolls on the harness rail or / and the auxiliary supporting rail. The system and a drive motor assembly. A shaft hole is opened at the first end of the frame support plate, a waist hole is opened at the second end of the frame support plate, and the first end of the drive bracket is passed through The first end of the driving bracket and the rotating shaft inserted into the shaft hole are hinged on the first end of the frame support plate, and the driving bracket can swing around the rotating shaft; the second end of the driving bracket is passed through The step bolt passing through the second end of the driving bracket and the waist-shaped hole is hinged together, and the step bolt is locked by a nut, and the second end of the driving bracket can float up and down; the first end of the spring Acting on the second end of the frame support plate, the second end of the spring acting on the second end of the drive bracket; the drive wheel system shaft is provided on the rotating shaft, and the drive motor assembly Drive the drive train Drive wheels in the system rotate;

In a preferred embodiment of the present invention, a spring reel is provided on the second end of the frame support plate, and the first end of the spring is wound on the spring reel.

In a preferred embodiment of the present invention, each driving wheel system further includes a pair of driving wheel clamp plates and a driving wheel. Both ends of the driving wheel shaft of the driving wheels are provided on a pair of driving wheel clamp plates. The wheel clamps are connected by a plurality of connecting pins, and the rotating shaft passes through a pair of driving wheel clamps.

In a preferred embodiment of the present invention, the drive wheel shafts of all the drive wheels are connected in series and driven by the drive motor assembly.

In a preferred embodiment of the present invention, the motor drive assembly is mounted on an outer drive wheel clamp plate in one of the drive wheel systems.

In a preferred embodiment of the present invention, the harness rail is provided with a driving wheel running track and the harness connector running track that are parallel to each other, and the driving wheel rolls on the driving wheel running track. The harness connector moves back and forth in the harness connector walking track.

In a preferred embodiment of the present invention, one of the auxiliary support rails or a pair of auxiliary support rails is provided with a driving wheel running track parallel to the moving direction of the upper sliding rail, and the driving wheels The drive wheels roll on the track.

In a preferred embodiment of the present invention, friction tracks are provided on the track surface of the driving wheel running track, and friction tracks are also provided on the wheel surface of the driving wheel.

In a preferred embodiment of the present invention, a harness accommodating cavity parallel to the harness connector walking track is provided in the harness rail, and a lower portion of the harness connector is accommodated through the harness connector walking track. Within the harness receiving cavity and slidable within the harness receiving cavity.

In a preferred embodiment of the present invention, slide rails are provided on the cavity walls on both sides of the wire harness accommodating cavity, and slide rail grooves are provided on both sides of the lower part of the harness connector, each slide rail groove Sliding is arranged on the corresponding slide rail.

In a preferred embodiment of the present invention, an upper portion of the harness connector is fixed to the seat fixing frame through a support plate.

In a preferred embodiment of the present invention, the unlocking driving mechanism further includes an unlocking motor, an unlocking swing arm, a release cable, and an unlocking connector fixed on the seat fixing frame, and the unlocking swing arm is fixed On the output shaft of the unlocking motor and connected to one end of the unlocking cable, the unlocking connector is fixed on the unlocking synchronization rod and connected to the other end of the unlocking cable, and the unlocking motor is driven The unlocking swinging arm rotates, the unlocking swinging arm pulls the unlocking cable, and the unlocking cable drives the synchronous unlocking lever to rotate through the unlocking connection member. The two ends of the unlocking synchronous lever drive the unlocking pieces on the pair of auxiliary supporting rails to unlock .

Since the above technical solution is adopted, the present invention has the following advantages:

1. Provides electric ground slide transmission scheme with large adjustment stroke.

2. Provides electric ground rail power supply scheme with large adjustment stroke.

3. A series of action logics for the locking and unlocking movement of the electric long slide rail are realized.

4. An electric drive ground rail with a large stroke is provided.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of an electric ground rail system for a car seat according to the present invention.

FIG. 2 is a partially exploded schematic view of an electric seat slide rail system of a car seat according to the present invention.

FIG. 3 is a schematic diagram of assembly of a seat fixing frame and a travelling mechanism and an unlocking driving mechanism in an electric seat slide rail system of a car seat according to the present invention.

FIG. 4 is a partially exploded schematic view of a walking mechanism in an electric seat slide rail system of a car seat according to the present invention.

FIG. 5 is a schematic diagram of the working state of the walking mechanism in the electric seat slide rail system of a car seat according to the present invention.

FIG. 6 is a schematic structural diagram of a frame support plate in a walking mechanism of the present invention.

FIG. 7 is an assembly schematic diagram of a walking mechanism in the electric seat slide rail system of a car seat according to the present invention.

FIG. 8 is a sectional view of the working state of the walking mechanism in the electric seat slide rail system of a car seat according to the present invention.

FIG. 9 is a top view of the harness rail of the present invention.

FIG. 10 is a sectional view of an assembly between a harness rail and a harness connector according to the present invention.

FIG. 11 is a schematic diagram of a driving wheel of the present invention.

FIG. 12 is a perspective view of a driving wheel of the present invention.

FIG. 13 is a schematic structural diagram of a walking mechanism and an unlocking driving mechanism of the present invention.

FIG. 14 is a schematic structural diagram of an electric seat slide rail system for a car seat according to the present invention after the seat fixing frame is removed.

FIG. 15 is a schematic structural diagram of two-wheel drive in an electric seat slide rail system of a car seat according to the present invention.

FIG. 16 is a schematic diagram of a single wheel arrangement of the electric seat slide rail system of a car seat according to the present invention.

FIG. 17 is a schematic diagram of an arrangement of two wheels of the electric seat slide rail system of a car seat according to the present invention.

18 is a schematic structural diagram of a slide rail of an auxiliary support rail in an electric seat slide rail system of a car seat according to the present invention.

FIG. 19 is a schematic diagram showing the position of some parts of the seat in the foremost position in the electric seat slide rail system of a car seat according to the present invention.

FIG. 20 is a schematic diagram showing the position of some parts of the seat in the final position of the electric seat rail system of the automobile seat of the present invention.

detailed description

The invention is described in detail below with reference to the drawings and specific embodiments.

1 to 3, an electric seat slide rail system for a car seat shown in the figure includes: a pair of auxiliary support rails 100 and 100a fixed on a vehicle body floor and parallel to each other; A wire harness rail 200; a seat fixing frame 300 fixedly connected to the seat; a walking mechanism 400 and an unlocking driving mechanism 500 installed on the seat fixing frame 300; and a wire harness box 600.

The harness rail 200 is disposed between and parallel to the pair of auxiliary support rails 100, 100a. An extension or contraction distribution harness 250 is arranged in the harness rail 200, and a harness connector 210 capable of reciprocating on the harness rail 200 is provided at the end of the distribution harness 250. With the adjustment and movement of the seat, a long distance is achieved Seat power distribution needs during adjustment.

Referring to FIGS. 9 to 12, a harness connector walking rail 220 is provided on the harness rail 200 and a harness receiving cavity 230 parallel to the harness connector walking rail 220 is provided in the harness rail 200. The lower part of the harness connector 210 is passed through. The wire harness connector walking rail 220 is accommodated in the wire harness accommodating cavity 230 and can slide in the wire harness accommodating cavity 230. Slide rails 231, 232 are provided on the cavity walls on both sides of the wire harness accommodating cavity 230, and slide

rail grooves

211, 212 are provided on both sides of the lower part of the wire harness connector 210. Corresponding slide rails 231 and 232 ensure smooth running of the harness connector 210 along the harness connector walking track 220.

The seat fixing frame 300 is provided with four

corners

310, 320, 310a, 320a, and the two

corners

310, 320 are located on one side of the seat fixing frame 300 and are fixedly connected to the upper slide rail 110 in the auxiliary support rail 100; two The

corners

310a, 320a are located on the other side of the seat fixing frame 300 and are fixedly connected to the upper slide rail 110a in the auxiliary support rail 100a, so as to ensure the strength, locking and stability functions of the seat.

The upper part of the harness connector 210 is fixedly connected to the seat fixing frame 300 through a support plate 330 and is connected to a seat control system (not shown in the figure). In this way, the power distribution and movement of the walking mechanism 400 and the unlocking driving mechanism 500 are controlled by The seat controller provides and controls.

The wire harness box 600 is fixed on the floor of the vehicle body and near one end of the wire harness rail 200. The wire harness box 600 is used to store the power distribution wire harness 220, and its structure can refer to “Wire harness winding structure of a car seat” with application number 201810481077.3. The applicant does not describe it in detail here. The second end of the power distribution wiring harness 250 stored in the wiring harness box 600 extends out of the wiring harness box 600 and is connected to a vehicle body wiring harness (not shown in the figure).

The traveling mechanism 400 includes a two-wheel traveling mechanism and a single-wheel traveling mechanism. The single-wheel traveling mechanism can refer to FIGS. 4 to 8, 14, 16, 18 to 20, and includes a frame supporting plate 410 and a driving bracket. 420, a spring 430, a driving wheel system 440, and a driving motor assembly 450.

A shaft hole 411a is opened at the first end 411 of the frame supporting plate 410, a waist hole 412a is opened at the second end 412 of the frame supporting plate 410, a first end 421 of the driving bracket 420 and a first end 441 of the driving wheel system 440 The driving bracket 420 and the driving wheel system are hinged on the first end 411 of the frame support plate 410 through a first end 421 of the driving bracket 420 and a first end 441 of the driving wheel system 440 and a rotating shaft 460 inserted into the shaft hole 411a. 440 is capable of swinging around the rotating shaft 460. The second end 422 of the driving bracket 420 is hinged together by a step bolt 470 passing through the second end 422 of the driving bracket 420 and the waist-shaped hole 412a. The step bolt 470 is locked by a nut 480, and the second end 422 of the driving bracket 420 is hinged. Can float up and down.

A spring reel 412b is provided on the second end 412 of the frame support plate 410, and the first end of the spring 430 is wound on the spring reel 412b. The second end of the spring 430 is clamped on the second end 422 of the driving bracket 420.

The driving wheel system 440 further includes a pair of driving

wheel clamping plates

442, 443 and a driving wheel 445. The two ends of the driving wheel shaft 445a of the driving wheels 445 are provided on the pair of driving

wheel clamping plates

442, 443 and pass through the check caps 445f. The driving

wheel clamping plates

442 and 443 are connected by a plurality of connecting pins 446, and the rotating shaft 460 passes through the pair of driving

wheel clamping plates

442 and 443. The motor driving assembly 450 is mounted on the outer driving wheel clamping plate 443 in the driving wheel system 440 by screws 451. The output end of the driving motor assembly 450 is drivingly connected to the driving wheel shaft 445a, and the driving wheel 445 is driven to rotate through the driving wheel shaft 445a. The drive motor assembly 450 is powered and controlled by the seat control system.

For a single-wheeled walking mechanism, referring to FIGS. 1 to 3, 5, 8, 9 to 12, 14, 16, 18 to 19, the harness rail 200 is provided with a harness connector The driving track 220 is parallel to the driving track 220 of the running track 220, and the driving wheel 445 rolls on the driving track 240 of the harness track 200. In order to prevent slipping, friction tracks 241 are provided on the track surface of the driving wheel running track 240, and friction tracks 445b are also provided on the wheel surface of the driving wheel 445.

For a two-wheeled walking mechanism, it differs from a single-wheeled walking mechanism in that the structure of its driving wheel system is different. See Figures 15 and 17. The driving wheel shaft is connected in series to form a long rotating shaft 445c. On a pair of driving

wheel clamp plates

442 and 443, the pair of driving

wheel clamp plates

442 and 443 and the rear shaft is provided on the driving bracket 420 (refer to the reference figure 4), the motor driving component 450 is installed on the driving

wheel clamping plate

442 or 443, and the output end of the motor driving component 450 is drivingly connected with the long rotating shaft 445c.

Driving

wheels

445d and 445e are fixed to the two ends of the long rotation shaft 445c, and the driving

rails

121 and 121a parallel to the upper sliding

rails

110 and 110a are provided on the pair of auxiliary supporting

rails

100 and 100a. The

driving wheels

445d and 445e roll on the driving

wheel running tracks

121 and 121a, respectively. Similarly, in order to prevent slippage, friction patterns are provided on the track surfaces of the driving

wheel running tracks

121 and 121a, and friction patterns are also provided on the wheel surfaces of the

driving wheels

445d and 445e.

Referring to FIG. 13, the unlocking driving mechanism 500 further includes an unlocking motor 510, an unlocking swing arm 520, a sling cable 530, and an unlocking connection member 540 fixed on the seat fixing frame 300. The unlocking swing arm 520 is fixed to the unlocking motor 510. The output shaft is connected to one end of the unlocking cable 530, and the unlocking connector 540 is fixed to the unlocking synchronization rod 550 and connected to the other end of the unlocking cable 530. The unlocking motor 510 drives the unlocking swing arm 520 to rotate, and the unlocking swing arm 520 pulls Unlocking the cable 530, the unlocking cable 530 drives the synchronous unlocking lever 550 to rotate through the unlocking connection member 540, and the two ends of the unlocking synchronous lever 550 drive a pair of unlocking pieces 560.560a on the locking mechanism on the auxiliary support rails 100 and 100a. Unlock to realize the function of unlocking and locking the slide rail. The unlocking motor 510 is powered and controlled by the seat control system.

The pair of auxiliary support rails 100 and 100a is basically the same as the existing long slide rail structure, except that the slide rails 120 and 120a are provided with drive

wheel walking rails

121 and 121a parallel to the upper slide rails 110 and 110a. The two ends of the pair of auxiliary support rails 100 and 100a are respectively provided with front and rear stop pin stops (not shown in the figure). The structure of the locking mechanism in the pair of auxiliary support rails 100 and 100a in the present invention is basically the same as that of the existing automobile seat slide rail.

Claims

An electric ground rail system for a car seat is characterized in that it includes:

A pair of auxiliary support rails fixed on the body floor and parallel to each other;

A wire harness rail fixed on the vehicle body floor; an extension or shortening power distribution wire harness is arranged in the wire harness rail;

A seat fixing frame fixedly connected to the seat, the seat fixing frame is also fixedly connected to an upper slide rail in each auxiliary support rail;

A running mechanism mounted on the seat fixing frame and driving the seat forward and backward through the seat fixing frame, the driving wheels in the running mechanism are on the harness rail or / and on the auxiliary support rail Rolling walking

An unlocking driving mechanism mounted on the seat fixing frame, the unlocking driving mechanism is connected with a locking mechanism on a pair of auxiliary support rails through a synchronous unlocking lever connected to the unlocking driving mechanism, and drives the lock Stopping mechanism unlocked;

The walking mechanism and the unlocking driving mechanism are connected to a vehicle body control system through a power distribution harness, and are controlled by the vehicle body control system.
The electric seat rail system for a car seat according to claim 1, further comprising a wire harness connector fixed on the seat fixing frame, the wire harness connector and the power distribution wire harness The first end is electrically connected and can move back and forth along the wiring harness rail, and the walking mechanism and the unlocking driving mechanism are connected to the vehicle body control system through a wiring harness connector and a power distribution wiring harness.
The electric ground rail system for a car seat according to claim 2, further comprising a seat control system installed on the car seat, wherein the seat control system is connected through the wiring harness on the one hand The controller and the power distribution wiring harness are connected to the vehicle body control system, and on the other hand are connected to the walking mechanism and the unlocking driving mechanism.
The electric ground rail system for a car seat according to claim 1 or 2 or 3, further comprising a wire harness box fixed on the body floor, the wire harness box is used for storing power distribution wire harnesses The second end of the power distribution wiring harness extends out from the wiring harness box to be connected with the body wiring harness and is connected to the body control system through the body wiring harness.
The electric seat slide rail system for a car seat according to claim 1, wherein the walking mechanism further comprises a frame support plate, a drive bracket, a spring, at least one of the harness rail or / and A driving wheel system and a driving motor assembly rolling on the auxiliary support rail, a shaft hole is opened at a first end of the frame support plate, and a waist hole is opened at a second end of the frame support plate. The first end of the drive bracket is hinged on the first end of the frame support plate through a first shaft that passes through the first end of the drive bracket and a shaft inserted into the shaft hole, and the drive bracket can swing around the shaft. ; The second end of the drive bracket is hinged together by a step bolt that passes through the second end of the drive bracket and the waist-shaped hole, the step bolt is locked by a nut, and the second end of the drive bracket The end can float up and down; the first end of the spring acts on the second end of the frame support plate, the second end of the spring acts on the second end of the drive bracket; the drive wheel system shaft Set on the shaft, so A drive motor assembly drive system of the drive wheel rotates the drive wheel;
The electric seat slide rail system for a car seat according to claim 5, wherein a spring roll is provided on a second end of the frame support plate, and a first end of the spring is wound around the spring Spring reels.
The electric seat slide rail system for a car seat according to claim 5, wherein each driving wheel system further comprises a pair of driving wheel plywood and a driving wheel, and two ends of the driving wheel shaft in the driving wheel It is provided on a pair of driving wheel clamping plates, the driving wheel clamping plates are connected through a plurality of connecting pins, and the rotating shaft passes through the pair of driving wheel clamping plates.
The electric seat slide rail system for a car seat according to claim 7, wherein the drive wheel shafts of all the drive wheels are connected in series and driven by the drive motor assembly.
The electric seat slide rail system for a car seat according to claim 7, wherein the motor drive assembly is mounted on an outer drive wheel clamp plate in one of the drive wheel systems.
The electric seat slide rail system for a car seat according to claim 7, wherein the harness rail is provided with a driving wheel running track and the harness connector running track which are parallel to each other, and the driving wheel Rolling on the driving wheel running track, the wire harness connector moves back and forth in the wire harness connector running track.
The electric seat slide rail system for a car seat according to claim 7, wherein one of the auxiliary support rails or a pair of auxiliary support rails is provided with a slide rail parallel to the moving direction of the upper slide rail A driving wheel running track, the driving wheel rolling on the driving wheel running track.
The electric seat slide rail system for a car seat according to claim 10 or 11, wherein friction tracks are provided on a track surface of the driving wheel running track, and also on a wheel surface of the driving wheel. Friction marks are provided.
The electric seat slide rail system for a car seat according to claim 2, characterized in that a wiring harness receiving cavity parallel to the wiring harness connector walking track is provided in the wiring harness rail. The lower part passes through the harness connector walking track and is accommodated in the harness accommodation cavity and is slidable in the harness accommodation cavity.
The electric slide rail system for a car seat according to claim 13, characterized in that each of the cavity walls on both sides of the wire harness accommodating cavity is provided with slide rails, and the two sides of the lower part of the wire harness connector Each is provided with a slide rail slot, and each slide rail slot is slidably disposed on a corresponding slide rail.
The electric slide rail system for an automobile seat according to claim 14, wherein an upper portion of the harness connector is fixed to the seat fixing frame through a support plate.
The electric seat slide rail system for a car seat according to claim 1, wherein the unlocking driving mechanism further comprises an unlocking motor, an unlocking swing arm, and a suspending rope fixed on the seat fixing frame. Cable, unlocking connection, the unlocking swing arm is fixed on the output shaft of the unlocking motor and connected to one end of the unlocking cable, and the unlocking connection is fixed on the unlocking synchronization lever and is connected with the unlocking The other end of the cable is connected, and the unlocking motor drives the unlocking swing arm to rotate. The unlocking swing arm pulls the unlocking cable. The unlocking cable drives the synchronous unlock lever to rotate through the unlocking connector. The unlocking piece on the locking mechanism on the upper part moves to unlock.