WO2024037199A1 - 一种电动滑轨齿轮传动结构 - Google Patents

一种电动滑轨齿轮传动结构 Download PDF

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Publication number
WO2024037199A1
WO2024037199A1 PCT/CN2023/103114 CN2023103114W WO2024037199A1 WO 2024037199 A1 WO2024037199 A1 WO 2024037199A1 CN 2023103114 W CN2023103114 W CN 2023103114W WO 2024037199 A1 WO2024037199 A1 WO 2024037199A1
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WIPO (PCT)
Prior art keywords
gear
slide rail
transmission structure
rail
motor bracket
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PCT/CN2023/103114
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English (en)
French (fr)
Inventor
崔渊博
吴培桂
倪洪斌
潘康
Original Assignee
恺博(常熟)座椅机械部件有限公司
恺博座椅机械部件有限公司
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Publication of WO2024037199A1 publication Critical patent/WO2024037199A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/07—Slide construction

Definitions

  • the present invention relates to vehicle seats, and more specifically to an electric slide rail gear transmission structure.
  • Vehicle seats usually include a backrest, a seat basin and an electric slide rail gear transmission structure (also known as an H-shaped slide rail assembly).
  • the backrest is installed vertically (Z-direction) on the seat basin, and the seat basin passes through the H-shaped slide rail assembly.
  • the rail assembly is mounted on the vehicle floor so as to be movable forward and backward (X-direction).
  • a conventional H-shaped slide rail assembly includes a left slide rail H1, a right slide rail H2, a motor bracket H3, and a motor H4.
  • the left slide rail H1 and the right slide rail H2 are spaced apart in parallel.
  • the motor bracket H3 is installed between the left slide rail H1 and the right slide rail H2.
  • the motor H4 installed on the motor bracket H3 synchronously drives the left slide rail H1 and the right slide rail H1 through the left and right flexible shaft components.
  • the distance A between the motor H4 and the body floor is too small, as shown in Figure 11, that is, the Z-direction position space is too small, which is prone to interference.
  • the present invention provides an electric slide rail gear transmission structure.
  • the electric slide rail gear transmission structure includes a slide rail, a motor bracket, a motor, a screw rod and a gear box, wherein the slide rail includes a lower rail and an upper rail, the lower rail is fixedly connected to the vehicle body floor, and the screw rod is fixed Installed on the lower rail, the upper rail can be installed on the lower rail relatively longitudinally.
  • the motor bracket and gearbox are installed on the upper rail respectively.
  • the motor installed on the motor bracket drives the upper rail to move longitudinally relative to the lower rail through a flexible shaft.
  • the gearbox It includes a worm, an idler gear and a gear. The worm is connected to the flexible shaft, the idler gear meshes with the worm and the gear at the same time, and the screw rod is inserted into the gear and connected.
  • the axis of the worm is perpendicular to the axis of the idler gear.
  • the axis of the idler gear is parallel to the axis of the gear.
  • the idler gear and the gear are respectively helical gears.
  • the gearbox includes a housing, and the worm, idler gear and gear are rotatably mounted on the housing. internal.
  • the gear box housing has a limiting block
  • the motor bracket has a buckle, which cooperates with the limiting block to directly fix the motor bracket on the gear box housing.
  • the housing of the gear box has a latch
  • the motor bracket has a slot
  • the latch cooperates with the slot to directly fix the motor bracket on the housing of the gear box.
  • the gearbox housing has a first threaded hole
  • the motor bracket has a second threaded hole
  • the bolt is inserted into the first threaded hole and cooperates with the second threaded hole to directly fix the motor bracket on the gearbox housing.
  • the gearbox further includes a buffer member.
  • the housing is connected by two symmetrical shells.
  • the buffer member is close to the housing at both front and rear sides in the direction of movement of the gearbox.
  • the electric slide rail gear transmission structure includes a left slide rail and a right slide rail arranged in parallel and spaced apart on the vehicle body floor, and the motor bracket is installed between the left slide rail and the right slide rail.
  • an idler gear is added between the worm and the gear to form a secondary transmission, thereby increasing the total center distance between the worm and the gear, increasing the space under the motor bracket, thereby improving Z To avoid the interference problem between the motor bracket and other mechanical components in the arrangement in the prior art.
  • Figure 1 is a schematic structural diagram of an electric slide rail gear transmission structure according to a preferred embodiment of the present invention
  • FIG. 2 is a front view of FIG. 1 .
  • Figure 3 is a partial structural diagram of Figure 2;
  • Figure 4 is a schematic structural diagram of the gearbox of Figure 3;
  • Figure 5 is an exploded view of Figure 4.
  • Figure 6 is a cross-sectional view of Figure 2;
  • Figure 7A is a partial structural schematic diagram of the electric slide rail gear transmission structure according to another preferred embodiment of the present invention.
  • Figure 7B is an exploded view of Figure 7A;
  • Figure 8A is a partial structural schematic diagram of the electric slide rail gear transmission structure according to another preferred embodiment of the present invention.
  • Figure 8B is an exploded view of Figure 8A;
  • Figure 8C is another view of the motor bracket of Figure 8B;
  • Figure 9A is a partial structural schematic diagram of the electric slide rail gear transmission structure according to another preferred embodiment of the present invention.
  • Figure 9B is an exploded view of Figure 9A;
  • Figure 10 is a schematic structural diagram of a prior art electric slide rail gear transmission structure
  • FIG. 11 is a front view of FIG. 10 .
  • the electric slide rail gear transmission structure includes a left slide rail 1, a right slide rail 2, a motor bracket 3 and a motor 4, wherein the left slide rail 1 and the right slide rail
  • the side slide rails 2 are arranged in parallel and spaced apart on the vehicle body floor.
  • the motor bracket 3 is installed between the left slide rail 1 and the right slide rail 2.
  • the motor 4 installed on the motor bracket 3 is driven synchronously through the left and right flexible shaft assemblies.
  • the left slide rail 1 and the right slide rail 2 respectively include a lower rail and an upper rail, wherein the lower rail is fixedly connected to the vehicle body floor, the upper rail is relatively longitudinally movable and installed on the lower rail, and the motor bracket 3 is relatively Fixed on the upper rail, the motor 4 drives the upper rail to move longitudinally relative to the lower rail.
  • the distance B between the motor 4 and the vehicle body floor increases, that is, the Z-direction position space increases, which avoids the interference problem in the prior art.
  • the electric slide rail gear transmission structure also includes a screw rod 5 and a gearbox 6.
  • the screw rod 5 is fixedly installed on the lower rail, and the gearbox 6 is fixedly connected to the upper rail (see Figure 1 ), the screw rod 5 penetrates the gear box 6, and the gear box 6 driven by the motor 4 through the flexible shaft 41 moves along the screw rod 5 to realize the longitudinal movement of the upper rail relative to the lower rail.
  • the output torque transmission path of the motor 4 is: motor 4 - flexible shaft 41 - gearbox 6 - screw rod 5, and finally the gearbox 6 drives the upper rail to move relative to the lower rail.
  • the gearbox 6 includes a housing 61, a buffer 62 and a transmission gear.
  • the housing 61 is connected by two symmetrical shells, and the buffer 62 (such as rubber The pads) are in close contact with the housing 61 at the front and rear sides in the movement direction of the gear box 6, and the transmission gear is arranged inside the housing 61.
  • the transmission gear includes a worm 63, an idler gear 64 and a gear 65, where the worm
  • the rod 63 is connected to the flexible shaft 41 (see Figure 3) to be driven by the motor 4, the idler gear 64 is engaged with the worm 63 and the gear 65 at the same time, and the screw rod 5 (see Figure 3) is inserted into the gear 65 and connected.
  • the output torque transmission path of motor 4 is: motor 4 - flexible shaft 41 - worm 63 - idler gear 64 - gear 65 - screw rod 5. See Figure 6.
  • the secondary transmission gearbox 6 drives the upper rail relative to the lower rail. move.
  • the axis of the worm 63 is perpendicular to the axis of the idler gear 64, and the axis of the idler gear 64 is parallel to the axis of the gear 65.
  • Both the idler gear 64 and the gear 65 are helical gears.
  • the present invention adds an idler gear between the worm and the gear to form a secondary transmission, thereby increasing the total center distance between the worm and the gear (also known as The total center distance of the gearbox) increases the space under the motor bracket, thereby increasing the Z-direction position space and avoiding the interference problem with other mechanical components in the arrangement in the prior art. It should be understood that the overall center distance of the gearbox can be changed according to the tooth profile adjustment.
  • the gearbox 6 according to the present invention adds a first-stage idler gear 64, and the difficulty of processing the parts does not change. Moreover, it has been verified by the ED sample that the gearbox 6 according to the present invention has no impact on the operating sound quality and can meet the current noise requirements.
  • the electric slide rail gear transmission structure according to the present invention is suitable for all electric slide rail platforms on seats, and it is easy to promote the development of slide rail platforms.
  • the housing 61a of the gearbox has a limiting block 611a
  • the motor bracket 3a has a buckle 31a.
  • the buckle 31a cooperates with the limiting block 611a to directly secure the motor bracket 3a. It is fixed on the casing 61a of the gear box, and the position limit is ensured in the form of a buckle.
  • this embodiment cancels the bolts/riveting of the traditional mid-mounted electric motor bracket, reducing the X-direction size of the motor bracket 3a.
  • the connection arrangement space is better.
  • the housing 61b of the gearbox has a latch 611b, and the motor bracket 3b has a slot 31b.
  • the latch 611b cooperates with the slot 31b to directly fix the motor bracket 3b to the gearbox.
  • the position limit is ensured in the form of a latch.
  • the housing 61c of the gearbox has a first threaded hole 611c
  • the motor bracket 3c has a second threaded hole 31c
  • bolts are inserted into the first threaded hole 611c and the second threaded hole 31c.
  • the motor bracket 3c is directly fixed on the housing 61c of the gear box, and the position limit is ensured in the form of a pin. Relative to the motor bracket, it is connected to the upper rail through bolts/riveting. Based on the existing technology, this embodiment eliminates the bolts/riveting of the traditional mid-mounted electric motor bracket, reduces the X-direction size of the motor bracket 3c, and provides better space for skeleton connection and arrangement.

Abstract

一种电动滑轨齿轮传动结构，其包括滑轨（1，2）、马达支架（3）、马达（4）、丝杆（5）和齿轮箱（6），其中，滑轨包括下轨和上轨，下轨固定连接在车身地板上，丝杆固定安装于下轨，上轨可相对纵向移动地安装于下轨，马达支架（3）和齿轮箱（6）分别安装于上轨，安装在马达支架（3）上的马达（4）通过软轴（41）带动上轨相对于下轨纵向移动，齿轮箱（6）包括蜗杆（63）、惰轮（64）和齿轮（65），蜗杆（63）与软轴（41）连接，惰轮（64）同时与蜗杆（63）和齿轮（65）啮合，丝杆（5）插入齿轮（65）中连接。该电动滑轨齿轮传动结构，在蜗杆（63）和齿轮（65）之间增加惰轮（64），形成二级传动，据此增加蜗杆（63）和齿轮（65）之间的总中心距，增大马达支架（3）下方的空间，从而提高Z向位置空间，避免马达支架与其它机构件在布置时出现的干涉问题。

Description

一种电动滑轨齿轮传动结构 技术领域
本发明涉及车辆座椅，更具体地涉及一种电动滑轨齿轮传动结构。
背景技术
车辆座椅通常包括靠背、坐盆和电动滑轨齿轮传动结构(也被称为H型滑轨总成)，其中，靠背竖直(Z向)安装在坐盆上，坐盆通过H型滑轨总成可前后(X向)移动地安装在车辆底板上。
如图10所示，常规的H型滑轨总成包括左侧滑轨H1、右侧滑轨H2、马达支架H3和马达H4，其中，左侧滑轨H1和右侧滑轨H2平行间隔开布置在车身地板上，马达支架H3安装在左侧滑轨H1和右侧滑轨H2之间，安装在马达支架H3上的马达H4通过左右两段软轴组件同步驱动左侧滑轨H1和右侧滑轨H2。在现有技术中，马达H4与车身地板的距离A过小，如图11所示，即Z向位置空间过小，容易产生干涉，例如马达H4与座椅下方通风口等结构件存在布置干涉问题，导致产品布置受限。
发明内容
为了解决上述现有技术中的上述干涉问题，本发明提供一种电动滑轨齿轮传动结构。
根据本发明的电动滑轨齿轮传动结构，其包括滑轨、马达支架、马达、丝杆和齿轮箱，其中，滑轨包括下轨和上轨，下轨固定连接在车身地板上，丝杆固定安装于下轨，上轨可相对纵向移动地安装于下轨，马达支架和齿轮箱分别安装于上轨，安装在马达支架上的马达通过软轴带动上轨相对于下轨纵向移动，齿轮箱包括蜗杆、惰轮和齿轮，蜗杆与软轴连接，惰轮同时与蜗杆和齿轮啮合，丝杆插入齿轮中连接。
优选地，蜗杆的轴线垂直于惰轮的轴线。
优选地，惰轮的轴线平行于齿轮的轴线。
优选地，惰轮和齿轮分别为斜齿轮。
优选地，齿轮箱包括壳体，蜗杆、惰轮和齿轮可转动地安装在壳体的 内部。
优选地，齿轮箱的壳体具有限位块，马达支架具有卡扣，该卡扣与限位块配合以将马达支架直接固定在齿轮箱的壳体上。
优选地，齿轮箱的壳体具有插销，马达支架具有插槽，该插销与插槽配合以将马达支架直接固定在齿轮箱的壳体上。
优选地，齿轮箱的壳体具有第一螺纹孔，马达支架具有第二螺纹孔，螺栓插入第一螺纹孔与第二螺纹孔配合以将马达支架直接固定在齿轮箱的壳体上。
优选地，齿轮箱还包括缓冲件，壳体由对称的两片壳连接而成，缓冲件在齿轮箱的运动方向的前后两侧贴紧在壳体上。
优选地，该电动滑轨齿轮传动结构包括平行间隔开布置在车身地板上的左侧滑轨和右侧滑轨，马达支架安装在左侧滑轨和右侧滑轨之间。
根据本发明的电动滑轨齿轮传动结构，在蜗杆和齿轮之间增加惰轮，形成二级传动，据此增加蜗杆和齿轮之间的总中心距，增大马达支架下方的空间，从而提高Z向位置空间，避免现有技术中的马达支架与其它机构件在布置时出现的干涉问题。
附图说明
图1是根据本发明的一个优选实施例的电动滑轨齿轮传动结构的结构示意图；
图2是图1的正视图。
图3是图2的局部结构示意图；
图4是图3的齿轮箱的结构示意图；
图5是图4的爆炸图；
图6是图2的剖视图；
图7A是根据本发明的另一个优选实施例的电动滑轨齿轮传动结构的局部结构示意图；
图7B是图7A的爆炸图；
图8A是根据本发明的又一个优选实施例的电动滑轨齿轮传动结构的局部结构示意图；
图8B是图8A的爆炸图；
图8C是图8B的马达支架的另一视图；
图9A是根据本发明的又一个优选实施例的电动滑轨齿轮传动结构的局部结构示意图；
图9B是图9A的爆炸图；
图10是现有技术的电动滑轨齿轮传动结构的结构示意图；
图11是图10的正视图。
具体实施方式
下面结合附图，给出本发明的较佳实施例，并予以详细描述。
如图1所示，根据本发明的一个优选实施例的电动滑轨齿轮传动结构包括左侧滑轨1、右侧滑轨2、马达支架3和马达4，其中，左侧滑轨1和右侧滑轨2平行间隔开布置在车身地板上，马达支架3安装在左侧滑轨1和右侧滑轨2之间，安装在马达支架3上的马达4通过左右两段软轴组件同步驱动左侧滑轨1和右侧滑轨2。更具体地，左侧滑轨1和右侧滑轨2分别包括下轨和上轨，其中，下轨固定连接在车身地板上，上轨可相对纵向移动地安装于下轨，马达支架3相对固定于上上轨，马达4带动上轨相对于下轨纵向移动。
如图2所示，马达4与车身地板的距离B增大，即Z向位置空间增加，避免了现有技术中的干涉问题。
如图3所示，根据本实施例的电动滑轨齿轮传动结构还包括丝杆5和齿轮箱6，其中，丝杆5固定安装于下轨，齿轮箱6固定连接于上轨(参见图1)，丝杆5贯穿齿轮箱6，由马达4通过软轴41带动的齿轮箱6沿着丝杆5移动以实现上轨相对于下轨的纵向移动。如此，马达4的输出扭矩传递路径为：马达4-软轴41-齿轮箱6-丝杆5，最终实现齿轮箱6带动上轨相对下轨移动。
如图4-图5所示，根据本实施例的齿轮箱6包括壳体61、缓冲件62和传动齿轮，其中，壳体61由对称的两片壳连接而成，缓冲件62(例如橡胶垫)在齿轮箱6的运动方向的前后两侧贴紧在壳体61上，传动齿轮设置在壳体61的内部。具体地，传动齿轮包括蜗杆63、惰轮64和齿轮65，其中，蜗 杆63与软轴41(参见图3)连接以由马达4驱动，惰轮64同时与蜗杆63和齿轮65啮合，丝杆5(参见图3)插入齿轮65中连接。如此，马达4的输出扭矩传递路径为：马达4-软轴41-蜗杆63-惰轮64-齿轮65-丝杆5，参见图6，最终实现二级传动齿轮箱6带动上轨相对下轨移动。在本实施例中，蜗杆63的轴线垂直于惰轮64的轴线，惰轮64的轴线平行于齿轮65的轴线，惰轮64和齿轮65均为斜齿轮。相对于现有技术中的蜗杆直接驱动齿轮的一级传动，本发明在蜗杆和齿轮之间增加惰轮，形成二级传动，据此增加蜗杆和齿轮之间的总中心距(也被称为齿轮箱总中心距)，增大马达支架下方的空间，从而提高Z向位置空间，避免现有技术中的与其它机构件在布置时出现的干涉问题。应该理解，齿轮箱总中心距可根据齿形调整进行变化。
相比于常规齿轮箱结构，根据本发明的齿轮箱6增加一级惰轮64，零件加工难度无变化。而且，经ED样件验证，根据本发明的齿轮箱6对运行声音品质无影响，可满足现行噪音需求。总之，根据本发明的电动滑轨齿轮传动结构适用于座椅上所有电动滑轨平台，易于推进滑轨平台化开发。
如图7A-图7B所示，根据本实施例的齿轮箱的壳体61a具有限位块611a，马达支架3a具有卡扣31a，该卡扣31a与限位块611a配合以将马达支架3a直接固定在齿轮箱的壳体61a上，通过卡扣的形式保证限位。相对于马达支架通过螺栓/铆接的连接形式连接在上轨上的现有技术，本实施例取消了传统中置电动马达支架的螺栓/铆接，减小了马达支架3a的X向尺寸，对于骨架连接布置空间更优。
如图8A-图8C所示，根据本实施例的齿轮箱的壳体61b具有插销611b，马达支架3b具有插槽31b，该插销611b与插槽31b配合以将马达支架3b直接固定在齿轮箱的壳体61b上，通过插销的形式保证限位。相对于马达支架通过螺栓/铆接的连接形式连接在上轨上的现有技术，本实施例取消了传统中置电动马达支架的螺栓/铆接，减小了马达支架3b的X向尺寸，对于骨架连接布置空间更优。
如图9A-图9B所示，根据本实施例的齿轮箱的壳体61c具有第一螺纹孔611c，马达支架3c具有第二螺纹孔31c，螺栓插入第一螺纹孔611c与第二螺纹孔31c配合以将马达支架3c直接固定在齿轮箱的壳体61c上，通过插销的形式保证限位。相对于马达支架通过螺栓/铆接的连接形式连接在上轨上的 现有技术，本实施例取消了传统中置电动马达支架的螺栓/铆接，减小了马达支架3c的X向尺寸，对于骨架连接布置空间更优。
以上所述的，仅为本发明的较佳实施例，并非用以限定本发明的范围，本发明的上述实施例还可以做出各种变化。即凡是依据本发明申请的权利要求书及说明书内容所作的简单、等效变化与修饰，皆落入本发明专利的权利要求保护范围。本发明未详尽描述的均为常规技术内容。

Claims (10)

  1. 一种电动滑轨齿轮传动结构，其特征在于，该电动滑轨齿轮传动结构包括滑轨、马达支架、马达、丝杆和齿轮箱，其中，滑轨包括下轨和上轨，下轨固定连接在车身地板上，丝杆固定安装于下轨，上轨可相对纵向移动地安装于下轨，马达支架和齿轮箱分别安装于上轨，安装在马达支架上的马达通过软轴带动上轨相对于下轨纵向移动，齿轮箱包括蜗杆、惰轮和齿轮，蜗杆与软轴连接，惰轮同时与蜗杆和齿轮啮合，丝杆插入齿轮中连接。
  2. 根据权利要求1所述的电动滑轨齿轮传动结构，其特征在于，蜗杆的轴线垂直于惰轮的轴线。
  3. 根据权利要求1所述的电动滑轨齿轮传动结构，其特征在于，惰轮的轴线平行于齿轮的轴线。
  4. 根据权利要求1所述的电动滑轨齿轮传动结构，其特征在于，惰轮和齿轮分别为斜齿轮。
  5. 根据权利要求1所述的电动滑轨齿轮传动结构，其特征在于，齿轮箱包括壳体，蜗杆、惰轮和齿轮可转动地安装在壳体的内部。
  6. 根据权利要求5所述的电动滑轨齿轮传动结构，其特征在于，齿轮箱的壳体具有限位块，马达支架具有卡扣，该卡扣与限位块配合以将马达支架直接固定在齿轮箱的壳体上。
  7. 根据权利要求5所述的电动滑轨齿轮传动结构，其特征在于，齿轮箱的壳体具有插销，马达支架具有插槽，该插销与插槽配合以将马达支架直接固定在齿轮箱的壳体上。
  8. 根据权利要求5所述的电动滑轨齿轮传动结构，其特征在于，齿轮箱的壳体具有第一螺纹孔，马达支架具有第二螺纹孔，螺栓插入第一螺纹孔与第二螺纹孔配合以将马达支架直接固定在齿轮箱的壳体上。
  9. 根据权利要求5所述的电动滑轨齿轮传动结构，其特征在于，齿轮箱还包括缓冲件，壳体由对称的两片壳连接而成，缓冲件在齿轮箱的运动方向的前后两侧贴紧在壳体上。
  10. 根据权利要求1所述的电动滑轨齿轮传动结构，其特征在于，该电动滑轨齿轮传动结构包括平行间隔开布置在车身地板上的左侧滑轨和右侧滑轨，马达支架安装在左侧滑轨和右侧滑轨之间。
PCT/CN2023/103114 2022-08-19 2023-06-28 一种电动滑轨齿轮传动结构 WO2024037199A1 (zh)

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CN1537742A (zh) * 2002-04-17 2004-10-20 德尔菲技术公司 用于动力操纵的车盖的驱动单元
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