Seat assembly

Abstract

The invention relates to a seat assembly which comprises a seat cushion frame and a backrest frame and is characterized in that the seat cushion frame comprises a seat cushion frame fixing part and a seat cushion frame sliding part, and the backrest frame is connected to the seat cushion frame sliding part. The cushion frame sliding portion is slidably received at the cushion frame fixing portion by a sliding structure and thereby the cushion frame sliding portion is slidable relative to the cushion frame fixing portion.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle technology, and more particularly to seat assemblies. Background Art

[0002] With the increasing popularity of electric vehicles, the placement of battery packs requires space under the seats, and the placement of battery packs under the rear seats is becoming increasingly common. Currently, there is a need to minimize the size of the rear seats without encroaching on the vehicle's space under the seats. These seats should be able to slide forward to increase trunk space while also allowing for rear passengers to slide, and should also be able to slide backward to increase legroom for rear passengers. Furthermore, there is a need to add backrest folding and tilting functions to minimize the size of the folding seats, reduce the volume requirements of the vehicle's pit, and provide more trunk space.

[0003] To achieve the sliding function, existing technologies typically use slide rails. For example, Chinese utility model application CN218558640U discloses a rear seat frame that utilizes slide rails to achieve sliding movement. The slide rails comprise an upper rail and a lower rail, the lower rail being fixed to the vehicle body, while the upper rail is fixed to the seat cushion frame. The upper rail slides relative to the lower rail to achieve sliding movement of the seat cushion frame relative to the vehicle body. This type of technology not only encroaches on the vehicle body space below the seat, but also exposes the fixed portion of the slide rail when in the extreme sliding position, affecting the appearance.

[0004] Regarding the flip-into-pit function, Chinese utility model application CN202221539152.5 discloses an electric flip assembly for a rear seat in a car. This electric flip assembly can achieve the flip-into-pit function, but it does not take into account the need for the seat cushion to slide. Summary of the Invention

[0005] An object of the present disclosure is to provide a seat assembly that can achieve a seat sliding function in a compact structure.

[0006] To this end, the present disclosure proposes a seat assembly, which includes a seat cushion frame and a backrest frame, and is characterized in that the seat cushion frame includes a seat cushion frame fixed part and a seat cushion frame sliding part, the backrest frame is connected to the seat cushion frame sliding part, and the seat cushion frame sliding part is slidably received at the seat cushion frame fixed part through a sliding structure, and thus the seat cushion frame sliding part can slide relative to the seat cushion frame fixed part.

[0007] In the present disclosure, the seat cushion frame sliding portion is slidably received at the seat cushion frame fixed portion by a sliding structure, and thus the seat cushion frame sliding portion is able to slide relative to the seat cushion frame fixed portion. Therefore, when the seat cushion frame sliding portion slides rearward, more legroom is provided for the occupant. On the other hand, when the seat cushion frame sliding portion is adjusted rearward, the seat cushion frame sliding portion and the backrest frame connected thereto are adjusted together, thereby providing greater comfort. When the seat cushion frame sliding portion moves forward, the backrest frame slides together with the seat cushion frame sliding portion at the seat cushion frame fixed portion, thereby providing more storage space behind the seat assembly. If the backrest frame is connected to the seat cushion frame fixed portion so that the backrest frame is fixed when the seat cushion frame sliding portion slides, no storage space will be provided when the seat cushion frame sliding portion is adjusted forward, and when the seat cushion frame sliding portion is adjusted rearward, the occupant's sitting surface becomes smaller, resulting in a significant reduction in comfort. In addition, in the present disclosure, since the seat cushion sliding function is achieved by sliding the sliding portion of the seat cushion frame relative to the fixed portion of the seat cushion frame, the seat assembly of the present disclosure is compact and occupies a small space as a whole. In addition, the technical solution of the present disclosure is less expensive than the vehicle body slide rail solution. In addition, when adopting a traditional vehicle body slide rail solution, the volume occupied by the vehicle seat will increase, thereby encroaching on passenger space or storage space. In addition, this traditional vehicle body slide rail solution is also more complex in structure and heavier than the present disclosure, which increases costs.

[0008] In some embodiments, the seat assembly further includes a backrest drive mechanism, wherein the backrest frame is pivotally connected to the seat cushion frame sliding portion via the backrest drive mechanism. Thus, the backrest frame is connected to the seat cushion frame sliding portion rather than to the seat cushion frame fixed portion, thereby enabling the backrest frame to slide together with the seat cushion frame sliding portion, thereby improving seat comfort.

[0009] In some embodiments, the backrest drive mechanism includes a recliner assembly.

[0010] In some embodiments, the seat cushion frame sliding portion is capable of sliding to any position relative to the seat cushion frame fixed portion, and the backrest frame is capable of being flipped over to a folded position relative to the seat cushion frame sliding portion via a backrest drive mechanism. Thus, based on the sliding of the seat cushion frame sliding portion at the seat cushion frame fixed portion and the connection of the backrest frame to the seat cushion frame sliding portion, the backrest frame can be flipped regardless of the sliding position of the seat cushion frame sliding portion.

[0011] In some embodiments, the seat cushion frame includes a seat cushion frame fixed portion and a seat cushion frame sliding portion, the seat cushion frame sliding portion being able to slide relative to the seat cushion frame fixed portion; or the seat cushion frame includes a seat cushion frame fixed portion and multiple seat cushion frame sliding portions, any one of the multiple seat cushion frame sliding portions being able to slide independently relative to the seat cushion frame fixed portion; or the seat cushion frame includes multiple seat cushion frame fixed portions and multiple seat cushion frame sliding portions corresponding to each seat cushion frame fixed portion, each seat cushion frame sliding portion being able to slide respectively relative to the corresponding seat cushion frame fixed portion. In this way, a flexible arrangement structure of seat cushion frame fixed portions and seat cushion frame fixed portions can be achieved.

[0012] In some embodiments, the sliding structure includes a slide groove group provided on one of the seat cushion frame fixed portion and the seat cushion frame sliding portion, and a slide groove matching member provided on the other of the seat cushion frame fixed portion and the seat cushion frame sliding portion. The slide groove matching member is provided corresponding to the slide groove group and can slide within the slide groove group. In this way, an advantageous sliding structure can be achieved.

[0013] In some embodiments, the slide groove group includes a plurality of slide grooves, and the slide groove matching component includes a plurality of slide groove matching bolts arranged corresponding to the plurality of slide grooves.

[0014] In some embodiments, the plurality of chutes include a first chute with an opening facing sideways and / or a second chute with an opening facing downwards. Thus, chutes with different opening directions can be flexibly adopted according to structural conditions.

[0015] In some embodiments, the second slide groove is configured as a linear slide groove, and the first slide groove is configured as a linear slide groove or an arcuate slide groove. Thus, advantageous sliding adjustment of the seat cushion frame sliding portion relative to the seat cushion frame fixed portion can be achieved.

[0016] In some embodiments, the seat assembly includes a slide-drive mechanism including a slide-drive motor. The slide-drive mechanism is disposed on the seat cushion frame fixed portion and operatively connected to the seat cushion frame sliding portion to drive the seat cushion frame sliding portion to slide relative to the seat cushion frame fixed portion. Providing the slide-drive mechanism with the slide-drive motor enables advantageous motorized sliding of the seat cushion frame sliding portion relative to the seat cushion frame fixed portion.

[0017] In some embodiments, the slide-drive mechanism is configured such that a slide-drive motor is connected to two first screws via two sets of flexible shafts and couplings, respectively, to drive the first screws to rotate, thereby driving a threaded translation member or gearbox on the first screws, which is directly or indirectly fixedly connected to the sliding portion of the seat cushion frame, to move along the first screws, thereby causing the sliding portion of the seat cushion frame to slide relative to the fixed portion of the seat cushion frame. The two sets of flexible shafts and couplings, as well as the two first screws, are symmetrically arranged. This provides an advantageous slide-drive mechanism.

[0018] In some embodiments, the slide-drive mechanism is configured such that the slide-drive motor is connected to two second screws via two sets of flexible shafts and a gear box, respectively, to drive the second screws to move relative to the gear box. The second screws are directly or indirectly fixedly connected to the sliding portion of the seat cushion frame, thereby enabling the sliding portion of the seat cushion frame to slide relative to the fixed portion of the seat cushion frame. The two sets of flexible shafts and the gear box, as well as the two second screws, are symmetrically arranged. This also provides an advantageous slide-drive mechanism.

[0019] In some embodiments, the slide-drive mechanism is configured as a push rod motor-drive mechanism. The push rod motor-drive mechanism is configured such that the slide-drive motor is connected to the third screw via a reduction mechanism to drive the third screw to rotate, thereby driving the sleeve on the third screw to move along the third screw. The slide-drive motor in the push rod motor-drive mechanism is pivotally connected to one of the seat cushion frame fixed portion and the seat cushion frame sliding portion, and the sleeve is pivotally connected to the other of the seat cushion frame fixed portion and the seat cushion frame sliding portion, thereby enabling the seat cushion frame sliding portion to slide relative to the seat cushion frame fixed portion. Thus, the push rod motor-drive mechanism can achieve advantageous sliding of the seat cushion frame sliding portion relative to the seat cushion frame fixed portion.

[0020] In some embodiments, the sliding-drive mechanism is configured as a gear motor-sliding drive mechanism, which is configured to drive a second gear transmission member having arcuate or straight teeth to move via the engagement of a gear on an output shaft of the sliding-drive motor. The sliding-drive motor in the gear motor-sliding drive mechanism is directly or indirectly fixedly connected to one of the seat cushion frame fixed portion and the seat cushion frame sliding portion, and the second gear transmission member is directly or indirectly fixedly connected to the other of the seat cushion frame fixed portion and the seat cushion frame sliding portion, thereby enabling the seat cushion frame sliding portion to slide relative to the seat cushion frame fixed portion. Thus, the gear motor-sliding drive mechanism can achieve advantageous sliding of the seat cushion frame sliding portion relative to the seat cushion frame fixed portion.

[0021] In some embodiments, the seat assembly further includes a reinforcing mechanism connected to the seat cushion frame sliding portion and the seat cushion frame fixed portion, respectively, to increase the locking strength and rigidity between the seat cushion frame sliding portion and the seat cushion frame fixed portion. This can further enhance the locking strength and rigidity between the seat cushion frame sliding portion and the seat cushion frame fixed portion.

[0022] In some embodiments, the reinforcement mechanism is configured as a slide rail mechanism, comprising an upper rail directly or indirectly fixedly connected to the sliding portion of the seat cushion frame, and a lower rail directly or indirectly fixedly connected to the fixed portion of the seat cushion frame. This ensures favorable sliding of the sliding portion of the seat cushion frame relative to the fixed portion of the seat cushion frame while enhancing the locking strength and rigidity of the two portions.

[0023] In some embodiments, the seat assembly further includes a flip assembly capable of flipping the seat cushion frame. The flip assembly is operatively connected to the seat cushion frame fixed portion and configured to flip the seat cushion frame fixed portion, along with the seat cushion frame sliding portion and sliding structure received thereon, rearwardly. By additionally providing the seat assembly with the flip assembly, the seat assembly according to the present disclosure can simultaneously achieve both sliding and rearward flipping functions. When achieving the rearward flipping function, the seat cushion frame sliding portion according to the present disclosure is slidably received in the seat cushion frame fixed portion via a sliding structure and can slide relative to the seat cushion frame fixed portion, rather than using a sliding rail as is common in the prior art. Therefore, when the entire seat assembly flips rearward, the seat cushion frame fixed portion, along with the seat cushion frame sliding portion and sliding structure received thereon, flips rearward together. This eliminates the need for additional sliding structures, such as rails, in the seat mounting area of ​​the vehicle body. These rails could negatively impact the appearance and usability of the seat mounting area. Therefore, the present disclosure can ensure that when the entire seat assembly flips backward, there is a flat surface at the seat mounting area of ​​the vehicle body, or at least there is no vehicle body slide rail structure that affects the appearance and use, while simultaneously realizing the backward flipping function and the seat cushion sliding function. Compared with the solution of simply realizing backward flipping into a pit, the present disclosure additionally provides a sliding function, but the sliding function of the present disclosure can be well compatible with the backward flipping function, and there is no need to set up a complex vehicle body slide rail structure including an upper rail and a lower rail. In the present disclosure, the sliding portion of the seat cushion frame is slidably received at the fixed portion of the seat cushion frame by a sliding structure. Compared with a possible vehicle body slide rail type sliding-backward flipping solution, the complexity of the sliding-backward flipping function is reduced, the control difficulty is reduced, and the probability of error is reduced.

[0024] In some embodiments, the backrest frame can be flipped to a folded state with the sliding part of the cushion frame via a backrest drive mechanism, and the flipping assembly is configured to flip the backrest frame, the cushion frame and the sliding structure backward together when the backrest frame and the sliding part of the cushion frame are in a folded state.

[0025] In some embodiments, the flip assembly is configured to flip the seat cushion frame, together with the backrest frame and the sliding structure, backward simultaneously with the backrest frame being flipped by the backrest drive mechanism. Thus, the seat cushion frame can be flipped independently of the backrest frame, and the seat cushion frame, together with the backrest frame and the sliding structure, can be flipped backward without first flipping the backrest frame to a folded state, thereby achieving a flexible rearward flipping function.

[0026] In some embodiments, the backrest frame, the seat cushion frame and the sliding structure can be flipped backward into a recessed pit of the vehicle body to accommodate the backrest frame and the seat cushion frame and thereby make the back side of the seat cushion frame fixed portion face outward.

[0027] In some embodiments, the flipping assembly includes a seat frame flipping mechanism and a fixed bracket, wherein the fixed bracket is fixedly arranged on the body of the vehicle, the seat cushion frame fixed part is rotatably connected to the fixed bracket, and can be flipped relative to the fixed bracket via the seat frame flipping mechanism.

[0028] In some embodiments, the seat frame flipping mechanism includes one or a combination of a flip-drive motor, a power-assist spring mechanism, an angle adjuster, and a rotating shaft. The flip-drive motor can electrically drive the fixed part of the seat cushion frame to flip, and the power-assist spring mechanism can assist the flipping of the fixed part of the seat cushion frame with the help of spring force.

[0029] In some embodiments, a flip assembly is provided on the left and right sides of the rear end of the fixed portion of the cushion frame, wherein:

[0030] - the seat frame tilting mechanism of the tilting assembly on one of the left and right sides includes a tilting-drive motor, and the seat frame tilting mechanism of the tilting assembly on the other side includes one of a power assist spring mechanism, a rotating shaft, or a tilting-drive motor; or

[0031] - The seat frame tilting mechanism of the tilting assembly on one of the left and right sides includes a power-assist spring mechanism, while the seat frame tilting mechanism of the tilting assembly on the other side includes a power-assist spring mechanism or a rotating shaft.

[0032] In some embodiments, the seat frame tilting mechanism is configured as a direct-drive motor-driven mechanism. This direct-drive motor-driven mechanism is configured to drive the fixed portion of the seat cushion frame to tilt via a single first rotating shaft using a tilt-driven motor. The first rotating shaft is fixedly connected to the fixed portion of the seat cushion frame on one hand and to a rotating flange of the tilt-driven motor on the other hand. Thus, the tilt-driven motor can rotate its rotating flange via the single first rotating shaft to drive the fixed portion of the seat cushion frame to tilt. Thus, a simple direct-drive tilting drive structure can be implemented using the direct-drive motor-driven mechanism.

[0033] In some embodiments, the assist spring mechanism comprises two assist springs and two mounting pins, the two mounting pins being fixed to a fixing bracket. The two assist springs are coaxially arranged, and one end of each assist spring is fixedly connected to a fixed portion of the seat cushion frame via a second rotational axis. The other ends of the two assist springs are each provided with a hook portion, which is hooked onto the two mounting pins. When the seat cushion frame is tilted in a first direction, the first of the two assist springs is tightened, thereby generating a first preload, while the second assist spring is released. Furthermore, when the seat cushion frame is tilted in a second direction opposite to the first direction, the second assist spring is tightened, thereby generating a second preload, while the first assist spring is released. The second preload assists the seat cushion frame when it is tilted in the first direction, while the first preload assists the seat back frame when it is tilted in the second direction. Thus, the assist spring mechanism has a bidirectional assist function, providing both assisting during tilting and supporting or slowing down the seat back during tilting, thereby achieving an easy and safe seat assembly tilting process. The assist spring mechanism generates a preload on the seat cushion frame's fixed portion during both forward and backward tilting. This preload provides both tilt assistance and tilt support when the seat assembly is tilted backward and forward. The terms "tilt assistance" and "tilt support" are explained using the example of a seat assembly tilting backward into its pit-entry position. "Tilt assistance" refers to the assist spring mechanism releasing preload to provide assistance when the seat assembly is tilting backward, while "tilt support" refers to the assist spring mechanism generating preload to "hold" the seat assembly when the seat assembly tilts forward past the intermediate position. This "tilt support" can also be referred to as "tilt descent." Thus, the assist spring mechanism achieves both bidirectional assist and support. When provided with an assist spring mechanism and a tilt-drive motor, the assist spring mechanism can assist the tilting operation of the tilt-drive motor in both directions. Both assist and support actions help reduce the impact of the seat assembly's own weight on the tilt-drive motor, thereby reducing the workload of the tilt-drive motor to a certain extent.

[0034] In some embodiments, the seat frame tilting mechanism is configured as a gear motor-tilt drive mechanism. The gear motor-tilt drive mechanism is configured to rotate a first gear transmission member having arcuate teeth via a gear meshing on a motor output shaft. The first gear transmission member is directly or indirectly fixedly connected to the seat cushion frame fixed portion. Thus, the tilting drive motor can drive the seat cushion frame fixed portion to tilt via the gear and the first gear transmission member. Thus, the gear motor-tilt drive mechanism, in combination with the first gear transmission member having arcuate teeth, facilitates tilting of the seat cushion frame fixed portion.

[0035] In some embodiments, a flip assembly is provided on the left and right sides of the rear end of the fixed part of the seat cushion frame, respectively, wherein the seat frame flipping mechanism of the flip assembly on one of the left and right sides includes a combination of a flip-drive motor and a recliner, and the seat frame flipping mechanism of the flip assembly on the other side includes a combination of a flip-drive motor and a recliner, a recliner or a rotating shaft.

[0036] In some embodiments, the tilt-drive motor is configured as a stepper or servo motor, and the recliner is configured as an electric recliner. The fixed disk of the electric recliner is fixedly connected to the fixed bracket, and the rotating disk of the electric recliner is fixedly connected to the fixed portion of the seat cushion frame. The rotating disk is driven by the stepper or servo motor to rotate relative to the fixed disk, thereby causing the fixed portion of the seat cushion frame to tilt. The electric recliner does not occupy much structural space and can be used in situations where structural space is limited, thereby providing a space-saving seat frame tilting mechanism.

[0037] In some embodiments, the seat assembly includes a ground lock mechanism, by which the seat cushion frame fixing portion can be switched between a fixed state and a released state, wherein the seat cushion frame fixing portion is fixed at the seat mounting area of ​​the vehicle body, and the seat cushion frame fixing portion is released so that the seat cushion frame fixing portion together with the seat cushion frame sliding portion and the sliding mechanism can be flipped backward.

[0038] In some embodiments, the ground locking mechanism is constructed to include a locking hook and a locking latch, wherein the locking hook is directly or indirectly fixedly connected to the fixed part of the seat cushion frame, and the locking hook can be locked with the locking latch arranged on the vehicle body to keep the fixed part of the seat cushion frame in a fixed state, and can be disengaged from the locking latch to switch the fixed part of the seat cushion frame from the fixed state to the released state.

[0039] In some embodiments, the seat assembly includes a slide-drive mechanism disposed on the seat cushion frame fixed portion and operatively connected to the seat cushion frame sliding portion to drive the seat cushion frame sliding portion to slide relative to the seat cushion frame fixed portion, wherein the flip assembly is configured to flip the seat cushion frame rearwardly together with the slide-drive mechanism. Thus, by disposing the slide-drive mechanism on the seat cushion frame fixed portion, when the seat cushion frame fixed portion is flipped via the flip assembly, the slide-drive mechanism can flip rearward together with the seat cushion frame. Consequently, after the rearward flip, no portion of the slide-drive mechanism remains on the vehicle body, thereby preventing the appearance and usability of the seat mounting area of ​​the vehicle body from being adversely affected.

[0040] The technical features mentioned above, the technical features described below, and the technical features shown individually in the accompanying drawings may be combined arbitrarily, as long as the combined technical features do not conflict with each other. All possible feature combinations are technical contents explicitly described in this document. Any of the multiple sub-features included in the same statement can be applied independently and does not necessarily have to be applied in conjunction with other sub-features. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present disclosure will be further described below with reference to the accompanying schematic drawings with the aid of exemplary embodiments, wherein:

[0042] Figure 1 is a schematic perspective view of a seat assembly according to one embodiment of the present disclosure.

[0043] Figure 2 yes Figure 1 Schematic diagram of the rear flip-into-pit function of the seat assembly.

[0044] Figure 3 yes Figure 1 Schematic diagram of the structure of the seat assembly between different sliding positions when the backrest frame is folded.

[0045] Figure 4 is a schematic perspective view of a seat assembly with a flip assembly and a floor lock mechanism.

[0046] Figure 5 yes Figure 4 Exploded view of the seat assembly.

[0047] Figure 6 2. It is a schematic perspective view of a seat frame tilting mechanism constructed as a tilting assembly of a direct-drive motor-driven mechanism.

[0048] Figure 7 yes Figure 6 Exploded view of the flip assembly.

[0049] Figure 8 It is a schematic perspective view of a seat frame tilting mechanism constructed as a tilting assembly of a power-assist spring mechanism.

[0050] Figure 9 yes Figure 8 Exploded view of the flip assembly.

[0051] Figure 10 It is a schematic perspective view showing that the seat frame tilting mechanism is constructed as a tilting assembly of a gear motor-tilt drive mechanism.

[0052] Figure 11 yes Figure 10 Exploded view of the flip assembly.

[0053] Figure 12 yes Figure 10 Another exploded view of the flip assembly.

[0054] Figure 13 yes Figure 10 Schematic diagram of the meshing structure between the first tooth transmission member in the flip assembly and the gear on the motor output shaft.

[0055] Figures 14 to 16 They are schematic perspective views of seat assemblies with the same tilting assembly on both sides, wherein the seat frame tilting mechanism of the tilting assembly is respectively constructed as a direct drive motor-driving mechanism, a power assist spring mechanism and a gear motor-tilting driving mechanism.

[0056] Figure 17 is a schematic perspective view of a floor lock mechanism of a seat assembly according to one embodiment of the present disclosure.

[0057] Figure 18 yes Figure 17 Exploded view of the ground lock mechanism.

[0058] Figure 19 and Figure 20 1 is a schematic perspective view and a side view of a seat assembly with a floor locking mechanism in a locked state according to one embodiment of the present disclosure.

[0059] Figure 21 and Figure 22 1 is a schematic perspective view and a side view of a seat assembly with a floor lock mechanism in a stowed state according to one embodiment of the present disclosure.

[0060] Figure 23 and Figure 24 are schematic perspective and side views of a seat assembly in a flip-over pit position according to one embodiment of the present disclosure.

[0061] Figure 25It is a structural schematic diagram of a seat assembly with a first screw rod, two sets of flexible shafts and couplings between different sliding positions according to an embodiment of the present disclosure.

[0062] Figure 26 is a schematic perspective view of a seat assembly with a first lead screw and two sets of flexible shafts and couplings according to one embodiment of the present disclosure.

[0063] Figure 27 yes Figure 26 Schematic perspective view of the components related to the sliding function framed by the dotted line frame.

[0064] Figure 28 yes Figure 27 Exploded view of components related to the sliding function.

[0065] Figure 29 yes Figure 26 Assembly diagram of the seat assembly.

[0066] Figure 30 It is a structural schematic diagram of a seat assembly with a second screw, two sets of flexible shafts and a gear box between different sliding positions according to an embodiment of the present disclosure.

[0067] Figure 31 is a schematic perspective view of a seat assembly with a second lead screw and two sets of flexible shafts and a gear box according to one embodiment of the present disclosure.

[0068] Figure 32 yes Figure 31 Schematic perspective view of the components related to the sliding function framed by the dotted line frame.

[0069] Figure 33 yes Figure 32 Exploded view of components related to the sliding function.

[0070] Figure 34 1 is a schematic structural diagram of a seat assembly with a push rod motor-drive mechanism between different sliding positions according to an embodiment of the present disclosure.

[0071] Figure 35 is a schematic perspective view of a seat assembly with a push rod motor-drive mechanism according to one embodiment of the present disclosure.

[0072] Figure 36 yes Figure 35 Schematic perspective view of the components related to the sliding function framed by the dotted line frame.

[0073] Figure 37 yes Figure 36 Exploded view of components related to the sliding function.

[0074] Figure 38 1 is a schematic structural diagram of a seat assembly with a gear motor-sliding drive mechanism between different sliding positions according to an embodiment of the present disclosure.

[0075] Figure 39 is a schematic perspective view of a seat assembly with a gear motor-slide drive mechanism according to one embodiment of the present disclosure.

[0076] Figure 40 yes Figure 39 Schematic perspective view of the components related to the sliding function framed by the dotted line frame.

[0077] Figure 41 Schematic diagram of the interaction of a blocking point portion, a second tooth transmission member, and an output tooth of a sliding-drive motor according to an embodiment of the present disclosure.

[0078] Figure 42 yes Figure 40 Exploded view of components related to the sliding function.

[0079] Figures 43 to 46 It is a structural schematic diagram of a partitioned sliding seat assembly using different sliding-drive mechanisms between different sliding positions.

[0080] Figure 47 is a flowchart of rearward folding of a seat assembly according to one embodiment of the present disclosure.

[0081] Figure 48 is a flowchart of rearward folding of a seat assembly according to another embodiment of the present disclosure.

[0082] Figure 49 is a schematic perspective view of a seat assembly with a reinforcement structure according to one embodiment of the present disclosure, wherein the reinforcement structure is configured as a slide rail mechanism.

[0083] Figures 50 to 53 yes Figure 49 Schematic diagram of different details of the slide mechanism. DETAILED DESCRIPTION

[0084] With the help of Figures 1 to 3 A seat assembly 100 according to one embodiment of the present disclosure is described.

[0085] In an exemplary embodiment, the seat assembly 100 may be a rear seat assembly 100 of a vehicle, more specifically, a third-row seat assembly 100 of a multi-purpose vehicle (MPV). The seat assembly 100 may be mounted on a vehicle body. The vehicle may be a passenger car or a truck, particularly an electric vehicle, such as a pure electric vehicle or a hybrid electric vehicle. More specifically, the vehicle may be an MPV.

[0086] According to the present disclosure, in some embodiments, a seat assembly 100 includes a seat cushion frame and a backrest frame 1. The backrest frame 1 is pivotally connected to a seat cushion frame sliding portion 3 via a backrest drive mechanism 30. Furthermore, in some embodiments, the backrest frame 1 may be fixedly connected to the seat cushion frame sliding portion 3. The seat cushion frame includes a seat cushion frame fixed portion 3 and a seat cushion frame sliding portion 2. The seat cushion frame sliding portion 2 is slidably received in the seat cushion frame fixed portion 3 via a sliding structure, thereby enabling the seat cushion frame sliding portion 2 to slide relative to the seat cushion frame fixed portion 3 within the seat cushion frame. In some embodiments, the seat assembly 100 may also include a flip assembly 10 operatively connected to the seat cushion frame fixed portion 3 and configured to flip the seat cushion frame fixed portion 3, together with the seat cushion frame sliding portion 2 and sliding structure received thereon, rearwardly. Of course, the seat assembly 100 may also be configured without the flip assembly 10, as may be the case in some rear-row seats.

[0087] If combined Figures 1 to 3 As can be clearly seen, in one embodiment, the backrest drive mechanism 30 includes a recliner assembly, and two backrest frames 1 are pivotally connected to a seat cushion frame sliding portion 2 via corresponding recliner assemblies. In other embodiments, more than two backrest frames 1 or only one backrest frame 1 may be provided. Figure 1 As can be seen in the figure, the backrest drive mechanism 30 constructed as a recliner assembly may include a backrest motor 31, a recliner 32, an upper backrest connecting plate 33 and a lower backrest connecting plate 34. The backrest motor 31 can drive the recliner 32 to adjust the angle of the backrest frame 1. The upper backrest connecting plate 33 connects the backrest frame 1 to the recliner 32. The lower backrest connecting plate 34 connects the cushion frame sliding part 2 to the recliner 32. In addition to the recliner assembly, other backrest drive mechanisms for pivoting the backrest frame 1 can also be envisioned. In an embodiment not shown, the other backrest drive mechanism can be constructed as a gear motor drive mechanism, which can drive a gear transmission member with arc teeth to rotate via the engagement of gears on the motor output shaft, thereby driving the backrest frame 1 to pivot.

[0088] like Figure 3 As shown, the cushion frame sliding portion 2 can slide forward and backward relative to the cushion frame fixed portion 3 through a sliding structure and can be moved as shown in FIG. Figure 3 The forward sliding position shown on the left is the same as Figure 3 Movement between the last slide positions shown on the right.

[0089] In addition, from Figure 2As can be seen in the schematic diagram of the rearward flipping process, the backrest frame 1, seat cushion frame, and sliding structure can flip backward into the recessed pit of the vehicle body to accommodate the backrest frame 1 and seat cushion frame, thereby allowing the back side of the seat cushion frame fixing portion 3 to face outward. The back side of the seat cushion frame fixing portion 3 is constructed to be substantially flat. In the disclosure, the rearward flipping into the pit function can, for example, meet a pit entry height of 750 mm, and the thickness envelope of the entire seat assembly 100 is small. In another embodiment, in addition to the rearward flipping into the pit function, the seat assembly 100 of the present disclosure can also achieve a rearward flipping function without a recessed pit.

[0090] Next, the flip function of the seat assembly 100 will be described in detail.

[0091] like Figure 1 As shown, the seat cushion frame fixing portion 3 is connected to the flip assembly 10 at its rear end. In some embodiments, the flip assembly 10 may include a seat frame flip mechanism and a fixing bracket 11, wherein the fixing bracket 11 is fixedly arranged on the vehicle body, and the seat cushion frame fixing portion 3 is rotatably connected to the fixing bracket 11 and can be flipped relative to the fixing bracket 11 via the seat frame flip mechanism. The seat frame flip mechanism can be fixed to the fixing bracket 11. The fixing bracket 11 can be as follows. Figure 1 In other embodiments, the fixing bracket 11 may be a component integrally formed on the vehicle body.

[0092] In the present disclosure, the seat frame flipping mechanism may include one or a combination of a flip-driving motor, a booster spring mechanism 120, a recliner, and a rotating shaft. The flip-driving motor electrically drives the seat cushion frame fixed portion 3 to flip. The booster spring mechanism 120 assists the flipping of the seat cushion frame fixed portion 3 by means of spring force.

[0093] like Figures 4 to 7 As shown, in one embodiment, the seat frame flipping mechanism can be constructed as a direct-drive motor-drive mechanism 110, which is configured to drive the seat cushion frame fixed part 3 to flip via a single first rotating shaft 113 with the help of a flip-drive motor. The first rotating shaft 113 is fixedly connected to the seat cushion frame fixed part 3 on the one hand, and is connected to the output member of the flip-drive motor, such as a rotating flange, on the other hand, so that the flip-drive motor can drive the seat cushion frame fixed part 3 to flip via the single first rotating shaft 113 by rotating its rotating flange.

[0094] In addition to the direct drive motor-drive mechanism 110, as Figure 8 and Figure 9 As shown, the seat frame flip mechanism can also be a power spring mechanism 120. The power spring mechanism 120 has a two-way power function. To this end, the power spring mechanism 120 is as shown in FIG. Figure 9 The seat frame 11 is shown as having two assisting springs 127 and two mounting pins 129. The two mounting pins 129 are fixed to the fixing bracket 11. The two assisting springs 127 are coaxially arranged, and one end of each assisting spring 127 is fixedly connected to the seat cushion frame fixing portion 3 via the second rotating shaft 122. The other end of each assisting spring 127 is provided with a hook portion, which is hooked onto the two mounting pins 129. When the seat cushion frame flips in a first direction, the first of the two assisting springs 127 is tightened, thereby generating a first preload, while the second assisting spring is released. When the seat cushion frame flips in a second direction opposite to the first direction, the second assisting spring is tightened, thereby generating a second preload, while the first assisting spring is released. The second preload can provide tilting assistance when the seat cushion frame flips in the first direction, and the first preload can provide tilting assistance when the backrest frame flips in the second direction. The assisting spring 127 can be configured as a coil spring. Figure 9 The positions of the two assist springs 127 are schematic; their positions can be interchanged. The outer contour of the connection area of ​​the second rotating shaft 122 for connection to the assist springs 127 forms a positive lock with the cross-section of the corresponding center holes of the two assist springs 127. A spacer bracket 123 is provided on the second rotating shaft 122, with a bushing 124 disposed between the spacer bracket 123 and the second rotating shaft 122. A first silencer 1261 is disposed between the assist spring 127 near the fixed bracket 1111 and the fixed bracket 11, and a second silencer 1262 is disposed between the two assist springs 127. In other embodiments, only the first silencer 1261 or the second silencer 1262 may be provided. A protective and fixing cover 1281 is provided outside the outermost of the two assisting springs 127. This cover at least partially covers the assisting spring 127. A first cover hole is provided in this cover 1281 for the second rotating shaft 122 to pass through. The second rotating shaft 122 passes through the hole in the fixing bracket 11 and the center holes of the two assisting springs 127, then continues through the first cover hole in the protective and fixing cover 1281. A fixing structure holds the two assisting springs 127 and the protective and fixing cover 1281 in place. This fixing structure may be a threaded connection structure comprising threads on the end of the second rotating shaft 122 and a fixing nut 1221. To this end, a further bushing 1282 is provided between the fixing nut 1221 and the protective and fixing cover 1281 for threaded connection. Two second cover holes are further provided in the protection and fixing cover 1281 , and the corresponding mounting pins 129 pass through the corresponding second cover holes and the hook portion of the corresponding assist spring 127 and are fixed to the fixing bracket 11 .

[0095] In one embodiment, the spacer bracket 123 and the mounting pin matching nut 125 are welded to the fixed bracket 11. The bushing 124 rivets the fixed bracket 11 to the spacer bracket 123, wherein the bushing 124 rivets the fixed bracket 11 to the spacer bracket 123 via raised protrusions 1241 on both side edges. The second rotating shaft 122 is welded to the seat cushion frame fixed portion 3. Another bushing 1282 is riveted to the protective and fixing cover 1281 to form a protective and fixing cover riveted assembly. The fixed bracket 11, the silencer, the assist spring 127, and the protective and fixing cover riveted assembly are sequentially assembled through the second rotating shaft 122. The fixing nut 1221 is externally secured to the threads of the second rotating shaft 122. The mounting pin 129 passes through the mounting holes of the fixing cover riveted assembly and the fixed bracket 11, as well as the hook portion of the assist spring 127, and is threadedly secured to the mounting pin matching nut 125.

[0096] In addition to the two flip component solutions mentioned above, Figures 10 to 13As shown, the seat frame tilting mechanism can also be configured as a geared motor-tilt drive mechanism 130. This geared motor-tilt drive mechanism 130 is configured to rotate a first geared transmission member with arcuate teeth via a gear meshing on the motor output shaft. The first geared transmission member is indirectly fixedly connected to the seat cushion frame fixed portion 3. Thus, the tilting drive motor can drive the seat cushion frame fixed portion 3 to tilt via the gear and the first geared transmission member. In other embodiments, the first geared transmission member can also be directly fixedly connected to the seat cushion frame fixed portion 3. The first geared transmission member can be configured as a toothed plate 132. The gear meshing on the motor output shaft is achieved by meshing a first gear 131 on the motor output shaft with the toothed plate 132. In one embodiment, the tilting assembly 10 includes a single third rotating shaft 134. This third rotating shaft 134 can be fixedly connected to the seat cushion frame fixed portion 3 and fixedly connected to the first geared transmission member. Thus, the seat cushion frame fixed portion 3 is indirectly fixedly connected to the first geared transmission member via the third rotating shaft 134. Here, the flip-drive motor in the gear motor-flip drive mechanism 130 drives the first gear transmission member fixedly connected to the third rotating shaft 134 to rotate, thereby driving the seat cushion frame fixed portion 3 to rotate, wherein the first gear transmission member rotates together with the third rotating shaft 134 and the seat cushion frame fixed portion 3. In another embodiment, the third rotating shaft 134 can also be rotationally connected to the seat cushion frame fixed portion 3, and the third rotating shaft 134 is fixedly connected to the fixed bracket 1, while the seat cushion frame fixed portion 3 and the first gear transmission member are directly fixedly connected. Here, the flip-drive motor in the gear motor-flip drive mechanism 130 drives the seat cushion frame fixed portion 3 and the first gear transmission member to rotate together about the third rotating shaft 134. In the gear motor-flip drive mechanism 130, the arrangement positions of the gear motor-flip drive mechanism 130 and the first gear transmission member can be interchanged. In this disclosure, arcuate teeth do not exclude the technical solution of fully circular teeth.

[0097] For the arrangement of the flip assembly 10, please refer to Figure 4 and Figure 5 and Figures 14 to 16 . In the present disclosure, a flip assembly 10 may be provided on the left and right sides of the rear end of the seat cushion frame fixing portion 3, respectively, wherein the seat frame flipping mechanism of the flip assembly 10 on one of the left and right sides may include a flip-driving motor, while the seat frame flipping mechanism of the flip assembly on the other side may include an assisting spring mechanism 120, a rotating shaft or a flip-driving motor; or the seat frame flipping mechanism of the flip assembly 10 on one of the left and right sides includes the assisting spring mechanism 120, while the seat frame flipping mechanism of the flip assembly on the other side includes the assisting spring mechanism 120 or a rotating shaft. Specifically, in one embodiment, as Figure 14As shown, a direct drive motor-drive mechanism 110 may be provided on the left and right sides of the rear end of the cushion frame fixing portion 3. In another embodiment, as shown in FIG. Figure 15 As shown, a booster spring mechanism 120 may also be provided on the left and right sides of the rear end of the cushion frame fixing portion 3. In another embodiment, as shown in FIG. Figure 16 As shown, a gear motor-flip driving mechanism 130 may also be provided on the left and right sides of the rear end of the cushion frame fixing portion 3. Figure 4 and Figure 5 As shown, in one embodiment, the seat frame flipping mechanism of the left flip assembly 10 can be configured as a direct drive motor-drive mechanism 110, while the seat frame flipping mechanism of the right flip assembly 10 can be configured as a boost spring mechanism 120. Of course, the left and right flip assemblies 10 can be interchanged.

[0098] The following combination Figure 4 and Figure 5 as well as Figures 17 to 24 The securing-releasing function of the seat assembly 100 will be described.

[0099] In order to realize the fixing-releasing function of the seat assembly 100, the seat assembly 100 includes a ground lock mechanism 20, by which the seat cushion frame fixing portion 3 can be switched between a fixed state and a released state. In the fixed state, the seat cushion frame fixing portion 3 is fixed at the seat mounting area of ​​the vehicle body. In the released state, the seat cushion frame fixing portion 3 is released so that the entire seat assembly 100, that is, the seat cushion frame fixing portion 3 together with the seat cushion frame sliding portion 2 and the sliding mechanism can be flipped backward. Figure 4 and Figure 5 as well as Figures 17 to 24 As shown, the floor lock mechanism 20 includes a lock hook 201 and a latch 21. The lock hook 201 can be directly or indirectly fixedly connected to the seat cushion frame fixing portion 3. The lock hook 201 can be locked to the latch 21 arranged on the vehicle body to maintain the seat cushion frame fixing portion 3 in a fixed state, and can be disengaged from the latch 21 to switch the seat cushion frame fixing portion 3 from the fixed state to the released state.

[0100] like Figure 19 and Figure 20 As shown, in the design position of the seat assembly 100, the lock hook 201 can be in a locked state and hooked on the latch 21. Figure 21 and Figure 22 As shown, when the seat assembly 100 is ready to be tilted backward, the lock hook 201 can be disengaged and enter the retracted state, wherein the lock hook 201 can be retracted into the seat cushion frame fixing part 3 after being disengaged, and the lock mechanism 20 is substantially flush with the seat cushion frame fixing part 3 in the retracted state. Figure 23 and Figure 24As shown, after being unlocked, the seat assembly 100 can be flipped back by the flip assembly 10 .

[0101] In an unillustrated embodiment, a flip assembly is disposed on each of the left and right sides of the rear end of the seat cushion frame fixed portion. The seat frame flipping mechanism of the flip assembly on one of the left and right sides includes a combination of a flip-drive motor and a recliner, while the seat frame flipping mechanism of the flip assembly on the other side includes a combination of a flip-drive motor and a recliner, a recliner, or a rotating shaft. In this embodiment, the flip-drive motor is configured as a stepper or servo motor, and the recliner is configured as an electric recliner. The fixed disk of the electric recliner is fixedly connected to a fixed bracket, and the rotating disk of the electric recliner is fixedly connected to the seat cushion frame fixed portion 3. The rotating disk is driven by the stepper or servo motor to rotate relative to the fixed disk, thereby causing the seat cushion frame fixed portion 3 to flip.

[0102] With the help of Figures 25 to 42 The sliding structure or sliding function of the seat assembly 100 will be described.

[0103] In order to realize the sliding function, the sliding structure includes a slide groove group provided on one of the seat cushion frame fixed part 3 and the seat cushion frame sliding part 2, and a slide groove matching member provided on the other of the seat cushion frame fixed part 3 and the seat cushion frame sliding part 2. The slide groove matching member is provided corresponding to the slide groove group and can slide in the slide groove group. The slide groove group may include a plurality of slide grooves, and the slide groove matching member includes a plurality of slide groove matching bolts provided corresponding to the plurality of slide grooves. The plurality of slide grooves include a first slide groove 301 with an opening facing sideways and / or a second slide groove 302 with an opening facing downward. The second slide groove 302 is configured as a straight slide groove. The first slide groove 301 can be configured as a straight slide groove or an arc-shaped slide groove as needed.

[0104] See for example Figure 29 In one embodiment, the seat cushion frame fixing portion 3 may have a first slide groove 301 in the side region. Furthermore, the seat cushion frame fixing portion 3 may have a second slide groove 302 in the rear region. In the embodiment shown in the figure, the first slide groove 301 is configured as a straight slide groove. In another embodiment, the first slide groove 301 may also be configured as an arcuate slide groove. This lateral arcuate slide groove allows the seat cushion to slide and rise and fall simultaneously.

[0105] The seat cushion frame fixing part 3 has a plate structure section in the rear area. The second slide groove 302 is constructed in the plate structure section and can be a linear slide groove. There can be multiple second slide grooves 302. Of course, only one second slide groove 302 can also be provided.

[0106] In order to realize the sliding of the cushion frame sliding part 2 in the corresponding sliding groove, a sliding groove matching piece is provided on the cushion frame sliding part 2. The sliding groove matching piece can be constructed as a sliding groove matching bolt. For example, see Figure 29 When the seat assembly 100 includes a backrest frame 1, a cushion frame sliding portion 2 and a cushion frame fixed portion 3, the backrest frame 1 together with the cushion frame sliding portion 2 is assembled in the lateral first sliding groove 301 of the cushion frame fixed portion 3 through the lateral sliding groove matching bolt 5, and the backrest frame 1 together with the cushion frame sliding portion 2 is assembled in the rear side second sliding groove 302 of the cushion frame fixed portion 3 through the rear sliding groove matching bolt 6.

[0107] The arrangement of the chute group shown is merely schematic. In other embodiments, in the chute group, all chute groups may be first chute groups 301 or second chute groups 302. In addition, unlike the arrangement of the chute group shown, the chute on the rear side of the seat cushion frame fixed part 3 may be the first chute group 301, and the chute on the side of the seat cushion frame fixed part 3 may be the second chute group 302, or both the first chute group 301 and the second chute group 302 may be provided on the rear side of the seat cushion frame fixed part 3, or the first chute group 301 may be provided on one side of the seat cushion frame fixed part 3 and the second chute group 302 may be provided on the other side. In addition, the arrangement positions of the chute group and the chute matching member may be interchangeable. For example, the chute group may be provided on the seat cushion frame sliding part 2, and the chute matching member may be provided on the seat cushion frame fixed part 3.

[0108] In order to drive the seat cushion frame sliding portion 2 to slide, the seat assembly 100 includes a slide-driving mechanism including a slide-driving motor, wherein the slide-driving mechanism is provided on the seat cushion frame fixed portion 3 and operatively connected to the seat cushion frame sliding portion 2 to drive the seat cushion frame sliding portion 2 to slide relative to the seat cushion frame fixed portion 3. The flip assembly 10 is operatively connected to the seat cushion frame fixed portion 3 and is configured to flip the seat cushion frame backward together with the slide-driving mechanism.

[0109] Reference Figures 25 to 29In this embodiment, the sliding-drive mechanism is constructed such that the sliding-drive motor is respectively connected to the two first screw rods 415 through two sets of flexible shafts and couplings 417, preferably arranged symmetrically, to drive the first screw rods 415 to rotate, and then drive the threaded translation member or gear box on the first screw rod 415, which is indirectly fixedly connected to the seat cushion frame sliding part 2 via the bracket, to move along the first screw rod 415, thereby achieving the sliding of the seat cushion frame sliding part 2 relative to the seat cushion frame fixed part 3. In another embodiment, the threaded translation member or gear box can be directly fixedly connected to the seat cushion frame sliding part 2. The sliding-drive motor can be an HTA motor. The HTA motor is a motor with a Hall effect current sensor.

[0110] In this embodiment, the seat cushion frame sliding portion 2 can be in the frontmost sliding position ( Figure 25 ) and the last swiped position ( Figure 25 ) on the right side of the .

[0111] Figure 27 and Figure 28 They are Figure 26 The structure diagram and exploded view of the area outlined by the dashed line in the figure. To connect the first screw rod 415 to the first flexible shaft 413, one end of the first screw rod 415 and the free end of the first flexible shaft 413 are preferably inserted into a coupling 417 in mutually orthogonal directions. The coupling 417 not only supports the first screw rod 415 and the first flexible shaft 413 but also limits the sliding travel of the seat cushion frame sliding portion 2 by abutting against the first gearbox 419. In one embodiment, the first flexible shaft 413 is connected to the output end of the sliding drive motor. The first flexible shaft 413 passes through the coupling 417, which is mounted or welded to the first motor mounting bracket 411. The front end of the first screw rod 415 is mounted on the coupling 417. The first screw rod 415 passes through the first gearbox 419, which is mounted to the gearbox mounting bracket 418 via mounting screws 416. The rear end of the first screw rod 415 is mounted to the first screw rod mounting bracket 414. The gearbox mounting bracket 418 is welded to the seat cushion frame sliding portion 2. The first screw mounting bracket 414 and the first motor mounting bracket 411 are respectively welded to the seat cushion frame fixed portion 3. The first motor mounting bracket 411 forms part of the seat cushion frame fixed portion 3. A threaded translating member can also be used in place of the first gearbox. This threaded translating member is preferably a nut.

[0112] Then refer to Figures 30 to 33In this embodiment, the sliding-drive mechanism is configured such that the sliding-drive motor is connected to two second screw rods 425 via two sets of flexible shafts and a gear box, preferably arranged symmetrically, respectively, to drive the second screw rods 425 to move relative to the gear box. The second screw rods 425 are indirectly fixedly connected to the seat cushion frame sliding portion 2 via a bracket, thereby enabling the seat cushion frame sliding portion 2 to slide relative to the seat cushion frame fixed portion 3. In addition to this indirect fixed connection, it is also conceivable to directly fix the second screw rods 425 to the seat cushion frame sliding portion 2.

[0113] This embodiment differs from the previous embodiment in the structure of the screw drive mechanism. Unlike the previous embodiment's technical solution of "the screw is stationary, and the gear box or nut is movable", this embodiment adopts the technical solution of "the gear box is stationary, and the screw is movable".

[0114] In this embodiment, the seat cushion frame sliding portion 2 can also be in the frontmost sliding position ( Figure 30 left) and the last slide position ( Figure 30 ) on the right side of the .

[0115] Figure 32 and Figure 33 They are Figure 31 Schematic diagram and exploded view of the structure of the area framed by the dotted line. In one embodiment, the second flexible shaft 423 is connected to the output end of the sliding-drive motor. The second flexible shaft 423 passes through the second gear box 426, and the second gear box 426 is assembled on the second motor mounting bracket 421 by installing the screw member 416. The second screw rod 425 passes through the second gear box 426, and the second screw rod 425 is assembled on the second screw rod mounting bracket 424 by installing the screw member 416. The second screw rod mounting bracket 424 is welded to the sliding part 2 of the seat cushion frame. The second motor mounting bracket 421 is welded to the fixed part 3 of the seat cushion frame, wherein the second motor mounting bracket 421 forms a part of the fixed part 3 of the seat cushion frame.

[0116] Then refer to Figures 34 to 37The sliding-drive mechanism is constructed as a push rod motor-drive mechanism, and the push rod motor-drive mechanism is constructed so that the sliding-drive motor is connected to the third screw rod 4321 through a reduction mechanism to drive the third screw rod 4321 to rotate, and then drive the sleeve 4322 on the third screw rod 4321 to move along the third screw rod 4321, wherein the sliding-drive motor in the push rod motor-drive mechanism is pivotally connected to one of the seat cushion frame fixed part 3 and the seat cushion frame sliding part 2, and the sleeve 4322 is pivotally connected to the other of the seat cushion frame fixed part 3 and the seat cushion frame sliding part 2, thereby realizing the sliding of the seat cushion frame sliding part 2 relative to the seat cushion frame fixed part 3.

[0117] In this embodiment, two push rod motor-drive mechanisms are provided. In other embodiments, other numbers of push rod motor-drive mechanisms may also be provided.

[0118] In this embodiment, the seat cushion frame sliding portion 2 can also be in the frontmost sliding position ( Figure 34 left) and the last slide position ( Figure 34 ) on the right side of the

[0119] Figure 36 and Figure 37 They are Figure 35 The structural diagram and exploded view of the area outlined by the dotted line in FIG. As shown in the figure, the third screw rod 4321 is received in the sleeve 4322. The third screw rod 4321 has an external thread, while the sleeve 4322 has an internal thread. The threaded engagement between the third screw rod 4321 and the sleeve 4322 can convert the rotational motion of the third screw rod 4321 into the linear motion of the sleeve 4322.

[0120] In one embodiment, in a push rod motor-drive mechanism, the sliding-drive motor is connected to the third screw 4321 via a reduction mechanism, and the sliding-drive motor is fixed to the push rod motor mounting bracket 433 via a motor mounting screw 435. The push rod motor mounting bracket 433 is fixed to the front support tube 431 of the seat cushion frame, thereby assembling the push rod motor 432 together with the third screw 4321 on the front support tube 431 of the seat cushion frame. The third screw 4321 is threadedly engaged with a sleeve 4322. The sleeve 4322 is assembled to the screw-sleeve transmission mechanism mounting bracket 434 via a sleeve mounting screw 436. The screw-sleeve transmission mechanism mounting bracket 434 is welded to the sliding portion 2 of the seat cushion frame. The front support tube 431 of the seat cushion frame is welded to the fixed portion 3 of the seat cushion frame.

[0121] Last reference Figures 38 to 42The sliding-drive mechanism can be configured as a gear motor-sliding drive mechanism, wherein the gear motor-sliding drive mechanism is configured to drive a second gear transmission member 443 having arcuate or linear teeth to move via the engagement of gears on the motor output shaft by the sliding-drive motor. The sliding-drive motor in the gear motor-sliding drive mechanism can be directly or indirectly fixedly connected to one of the seat cushion frame fixed portion 3 and the seat cushion frame sliding portion 2, and the second gear transmission member 443 can be directly or indirectly fixedly connected to the other of the seat cushion frame fixed portion 3 and the seat cushion frame sliding portion 2, thereby enabling the seat cushion frame sliding portion 2 to slide relative to the seat cushion frame fixed portion 3.

[0122] In this embodiment, two gear motors-sliding drive mechanisms are provided. In other embodiments, other numbers of gear motors-sliding drive mechanisms may also be provided.

[0123] In this embodiment, the seat cushion frame sliding portion 2 can also be in the frontmost sliding position ( Figure 38 left) and the last slide position ( Figure 38 ) on the right side of the .

[0124] Figures 40 to 42 They are Figure 39 The schematic diagram and exploded view of the gear motor-sliding drive mechanism in the area framed by the dotted line. In this embodiment, the second gear transmission member 443 is fixedly arranged on the second gear transmission member fixing bracket 447. The output teeth 444 of the sliding-drive motor and the second gear transmission member 443 form a gear meshing. Figure 40 and Figure 42 As shown, the sliding-drive motor output tooth 444 may have a protrusion 4441 on the tooth end face, and the second gear transmission member fixing bracket 447 has a third slide groove 448, which is configured to allow the protrusion 4441 of the sliding-drive motor output tooth 444 to pass through and slide in the third slide groove 448. The third slide groove 448 is constructed corresponding to the tooth shape of the second gear transmission member 443. Figure 40 and Figure 42 In the embodiment shown, the second tooth transmission member 443 has straight teeth, and the second tooth transmission member 443 is a rack. In another embodiment, as Figure 41As shown, a stop point portion 445 can be provided on the second gear transmission member fixing bracket 447, and the second gear transmission member 443 has a raised portion at its end portion to interact with the stop point portion 445, wherein when the sliding-drive motor drives the second gear transmission member 443 to perform linear motion via the sliding-drive motor output teeth 444, the second gear transmission member 443 moves between the stop point portion 445 and the sliding-drive motor output teeth 444, and the stop point portion 445 rests on the back side of the second gear transmission member 443 that faces away from the tooth portion of the second gear transmission member 443, wherein when the second gear transmission member 443 moves to its end stroke, the sliding-drive motor output teeth 444, the raised portion at the end of the second gear transmission member 443 and the stop point portion 445 act together and stop the second gear transmission member 443. Figure 41 In the embodiment shown, the second tooth transmission member 443 has slightly arc-shaped teeth, and the second tooth transmission member 443 is also configured as a strip. Figure 41 In the embodiment, the stop point portion 445 and the sliding-drive motor output teeth 444 cooperate with each other to achieve stable operation of the second gear transmission member 443 and prevent the second gear transmission member 443 from jumping and causing gear slipping. In addition, the stop point portion 445 also functions to achieve the end stop of the second gear transmission member 443 through the combined action of the sliding-drive motor output teeth 444, the raised portion at the end of the second gear transmission member 443 and the stop point portion 445. Figure 40 and Figure 42 In the embodiment shown, since the third sliding groove 448 is provided, the stroke of the second gear transmission member 443 can be achieved by the limited length of the third sliding groove 448. Figure 40 and Figure 42 In the embodiment shown, a stop point portion 445 may also be provided to achieve stable operation of the second gear transmission member 443 through the cooperation between the stop point portion 445 and the sliding-drive motor output teeth 444. In one embodiment, the sliding-drive motor mounting plate 442 is assembled on the cushion frame fixed portion 3. The second gear transmission member 443 is engaged with the sliding-drive motor output teeth 444. The stop point portion 445 constrains the second gear transmission member 443. The second gear transmission member 443 and the stop point portion 445 are respectively assembled on the second gear transmission member fixed bracket 447, wherein the second gear transmission member 443 is assembled on the second gear transmission member fixed bracket 447 by rivets 446. The second gear transmission member fixed bracket 447 is welded to the cushion frame sliding portion 2. The arrangement positions of the sliding-drive motor and the second gear transmission member 443 in the gear motor-sliding drive mechanism can be interchanged.

[0125] The above description describes a cushion frame sliding portion 2 and a cushion frame fixed portion 3. Figures 43 to 49 The zoned sliding functionality of the seat assembly 100 will be described.

[0126] In order to realize the partitioned sliding function, in one embodiment, the cushion frame may include a cushion frame fixed part 3 and multiple cushion frame sliding parts 2, any one of the multiple cushion frame sliding parts 2 can slide independently relative to the cushion frame fixed part 3, wherein the cushion frame fixed part 3 may include multiple cushion frame fixed part sections for one of the cushion frame sliding parts 2 to slide.

[0127] In an alternative embodiment, the seat cushion frame may also include multiple seat cushion frame fixed portions 3 and multiple seat cushion frame sliding portions 2 corresponding to each seat cushion frame fixed portion 3, with each seat cushion frame sliding portion 2 being capable of sliding relative to the corresponding seat cushion frame fixed portion 3. In this alternative embodiment, any set of seat cushion frame sliding portions 2 and seat cushion frame fixed portions 3 can be flexibly selected for rearward flipping. With this configuration, if the rear seat assembly is 50 / 50, i.e., the two seats are the same width, then the space between the two seats is sufficient, and any configuration of the aforementioned flip assembly 10 can be selected as needed. However, if the rear seat assembly is 4 / 6, i.e., the two seats are unequal in width, then the space between the two seats is relatively small. In this case, the flip assembly 10 on the adjacent side of the two seats needs to be selected as a rotating shaft or a recliner, while the flip mechanism 10 on the outer sides of the two seats can be flexibly selected as needed.

[0128] The seat cushion frame sliding part 2 and the corresponding seat cushion frame sliding part 2 or seat cushion frame fixed part section can be constructed as described above in terms of the structure for realizing the sliding function, such as the sliding structure and the sliding drive mechanism.

[0129] Here, the partition sliding function of the seat assembly 100 is described using a 4:6 partition seat assembly. Figure 43 As shown, there may be two seat cushion frame sliding parts in the 4 / 6 seat assembly, which are respectively referred to as the 40% seat cushion frame sliding part 72 and the 60% seat cushion frame sliding part 82. For this purpose, there are correspondingly a 40% seat cushion frame fixed part 73 and a 60% seat cushion frame fixed part 83 in the seat cushion frame fixed part as corresponding seat cushion frame fixed part sections. The 40% seat cushion frame sliding part 72 and the 60% seat cushion frame sliding part 82 with the corresponding backrest frame can slide at the corresponding 40% seat cushion frame fixed part 73 and the 60% seat cushion frame fixed part 83, respectively. The sliding of the 40% seat cushion frame sliding part 72 and the 60% seat cushion frame sliding part 82 can be performed independently of each other. When the 60% seat cushion frame sliding part 82 is in the frontmost sliding position ( Figure 43 The last slide position ( Figure 43When the seat frame slides between the right and left sides (the right side), the 40% seat frame sliding portion 72 can remain stationary. In addition to the 4:6 seat assembly, other forms of seat assemblies 100 with partitioned sliding functions can also be envisioned, such as a 3:7 seat assembly and a 5:5 seat assembly.

[0130] Figures 43 to 46 Shown is the zoned sliding seat assembly that adopts different slide-drive mechanisms.For each cushion frame sliding part 2, can adopt corresponding slide-drive mechanism as needed.

[0131] With the help of Figure 47 and Figure 48 The rearward tilt function of the seat assembly is described.

[0132] like Figure 47 As shown, to flip the seat assembly backward, in one embodiment, the backrest drive mechanism 30 is first used to flip the backrest frame 1 forward until it is folded with the seat cushion frame sliding portion 2. Furthermore, the floor lock mechanism 20 is switched from a fixed state to a released state, and the lock hook 201 is retracted. Then, with the backrest frame 1 and the seat cushion frame sliding portion 2 in the folded state, the backrest frame 1, the seat cushion frame, and the sliding structure can be flipped backward together using the flip assembly 10, thereby entering the flip-in pit state.

[0133] Furthermore, it is also conceivable to turn over the backrest frame 1 while tilting back. Figure 48 As shown, while the backrest frame 1 is flipped over by the backrest driving mechanism 30 , the flip assembly 10 can flip the backrest frame 1 together with the seat cushion frame and the sliding structure backward.

[0134] Finally with the help Figures 49 to 53 A reinforcement structure 60 for the seat cushion frame sliding portion 2 and the seat cushion frame fixed portion 3 is described. The reinforcement structure 60 can increase the locking strength and rigidity between the seat cushion frame sliding portion 2 and the seat cushion frame fixed portion 3. The reinforcement structure 60 can be configured as a slide rail mechanism 600, which can include an upper rail 601 directly or indirectly fixedly connected to the seat cushion frame sliding portion 2, and a lower rail 602 directly or indirectly fixedly connected to the seat cushion frame fixed portion 3. In one embodiment, the slide rail mechanism 600 includes the upper rail 601 and the lower rail 602, wherein the upper rail 601 is fixedly connected to the seat cushion frame sliding portion 2 via a slide rail mounting bracket 202 fixed to the seat cushion frame sliding portion 2, such as by welding, and the lower rail 602 can be fixedly connected to the seat cushion frame fixed portion 3 via a threaded connection structure.

[0135] It should be noted that the terms used herein are for the purpose of describing specific aspects only and are not intended to limit the disclosure. As used herein, the singular forms "a" and "the one" shall include the plural forms unless the context clearly indicates otherwise. It will be understood that the terms "include" and "comprise" and other similar terms, when used in the application documents, specify the presence of the stated operations, elements and / or parts, and do not exclude the presence or addition of one or more other operations, elements, parts and / or combinations thereof. As used herein, the term "and / or" includes all arbitrary combinations of one or more related enumerated items. In the description of the drawings, similar reference numerals always represent similar elements.

[0136] The thickness of the elements in the accompanying drawings can be exaggerated for the sake of clarity. It will also be understood that if an element is referred to as being on, coupled to, or connected to another element, then the element can be formed directly on, coupled to, or connected to the other element, or one or more intervening elements can be present between them. On the contrary, if the expressions "directly on...", "directly coupled to...", and "directly connected to..." are used herein, then there is no intervening element. Other words used to illustrate the relationship between elements should be interpreted similarly, such as "between..." and "directly between...", "attached to," and "directly attached to," "adjacent to," and "directly adjacent to," etc.

[0137] Terms such as "top," "bottom," "above," "below," "upper," "below," etc., are used herein to describe the relationship of one element, layer, or region to another element, layer, or region as illustrated in the figures. It will be understood that these terms are intended to encompass orientations of the device in addition to the orientation depicted in the figures.

[0138] It will be understood that although the terms "first," "second," and the like may be used herein to describe different elements, these elements should not be limited by these terms. These terms are merely used to distinguish one element from another. Thus, a first element may be referred to as a second element without departing from the teachings of the present disclosure.

[0139] It is also contemplated that all exemplary embodiments disclosed herein may be arbitrarily combined with one another. Furthermore, all individual technical features in this application may be arbitrarily combined with one another, as long as the combined technical features are not mutually contradictory. All technically feasible feature combinations are considered technical content described in this application.

[0140] Finally, it should be pointed out that the above embodiments are only used to understand the present disclosure and do not limit the scope of protection of the present disclosure. For those skilled in the art, modifications can be made based on the above embodiments, and these modifications do not depart from the scope of protection of the present disclosure.

Claims

1. A seat assembly, comprising a seat cushion frame and a backrest frame, characterized in that: The cushion frame includes a cushion frame fixing part and a cushion frame sliding part, the backrest frame is connected to the cushion frame sliding part, the cushion frame sliding part is slidably received at the cushion frame fixing part through a sliding structure and thus the cushion frame sliding part can slide relative to the cushion frame fixing part.

2. The seat assembly according to claim 1, characterized in that The seat assembly further comprises a backrest drive mechanism, wherein the backrest frame is pivotally connected to the seat cushion frame sliding portion via the backrest drive mechanism; and / or The backrest drive mechanism includes a recliner assembly; and / or The seat cushion frame sliding part can slide to any position relative to the seat cushion frame fixed part, and the backrest frame can be flipped to a folded state with the seat cushion frame sliding part via the backrest driving mechanism; and / or The cushion frame includes a cushion frame fixed portion and a cushion frame sliding portion, and the cushion frame sliding portion can slide relative to the cushion frame fixed portion; or The cushion frame includes a cushion frame fixing portion and a plurality of cushion frame sliding portions, any one of the plurality of cushion frame sliding portions being capable of independently sliding relative to the cushion frame fixing portion; or The cushion frame includes a plurality of cushion frame fixing parts and a plurality of cushion frame sliding parts arranged corresponding to each of the cushion frame fixing parts, and each of the cushion frame sliding parts can slide relative to the corresponding cushion frame fixing part.

3. The seat assembly according to claim 1 or 2, characterized in that: The sliding structure comprises a slide groove group provided on one of the seat cushion frame fixed part and the seat cushion frame sliding part, and a slide groove matching piece provided on the other of the seat cushion frame fixed part and the seat cushion frame sliding part, wherein the slide groove matching piece is provided corresponding to the slide groove group and can slide in the slide groove group; and / or The slide groove group includes a plurality of slide grooves, and the slide groove matching member includes a plurality of slide groove matching bolts arranged corresponding to the plurality of slide grooves; and / or The plurality of slide grooves include a first slide groove opening to the side and / or a second slide groove opening to the bottom; and / or The second sliding groove is configured as a linear sliding groove, and the first sliding groove is configured as a linear sliding groove or an arc-shaped sliding groove.

4. The seat assembly according to claim 1 or 2, characterized in that: The seat assembly comprises a slide-drive mechanism, the slide-drive mechanism comprises a slide-drive motor, wherein the slide-drive mechanism is arranged on the fixed part of the cushion frame and is operatively connected to the sliding part of the cushion frame to drive the sliding part of the cushion frame to slide relative to the fixed part of the cushion frame; and / or The sliding-driving mechanism is constructed such that the sliding-driving motor is respectively connected to the two first screws through two sets of flexible shafts and couplings, so as to drive the first screws to rotate, and then drive the threaded translation member or gear box on the first screw that is directly or indirectly fixedly connected to the sliding part of the cushion frame to move along the first screw, so as to realize the sliding part of the cushion frame relative to the fixed part of the cushion frame, wherein the two sets of flexible shafts and couplings and the two first screws are respectively arranged symmetrically with each other; and / or The sliding-driving mechanism is constructed such that the sliding-driving motor is respectively connected to two second screws through two sets of flexible shafts and a gear box to drive the second screws to move relative to the gear box, and the second screws are directly or indirectly fixedly connected to the sliding part of the cushion frame, so as to realize the sliding part of the cushion frame relative to the fixed part of the cushion frame, wherein the two sets of flexible shafts and the gear box and the two second screws are respectively arranged symmetrically with each other; and / or The sliding-driving mechanism is constructed as a push rod motor-driving mechanism, and the push rod motor-driving mechanism is constructed so that the sliding-driving motor is connected to the third screw rod through a reduction mechanism to drive the third screw rod to rotate, and then drive the sleeve on the third screw rod to move along the third screw rod, wherein the sliding-driving motor in the push rod motor-driving mechanism is pivotally connected to one of the seat cushion frame fixed part and the seat cushion frame sliding part, and the sleeve is pivotally connected to the other of the seat cushion frame fixed part and the seat cushion frame sliding part, so as to realize the sliding part of the seat cushion frame relative to the seat cushion frame fixed part; and / or The sliding-driving mechanism is constructed as a gear motor-sliding driving mechanism, and the gear motor-sliding driving mechanism is constructed to drive a second tooth transmission member with arc teeth or straight teeth to move by means of a sliding-driving motor through gear meshing on a motor output shaft, wherein the sliding-driving motor in the gear motor-sliding driving mechanism is directly or indirectly fixedly connected to one of the seat cushion frame fixed part and the seat cushion frame sliding part, and the second tooth transmission member is directly or indirectly fixedly connected to the other of the seat cushion frame fixed part and the seat cushion frame sliding part, so as to realize the sliding of the seat cushion frame sliding part relative to the seat cushion frame fixed part; and / or The seat assembly further includes a reinforcing mechanism connected to the seat cushion frame sliding portion and the seat cushion frame fixed portion, respectively, to increase the locking strength and rigidity between the seat cushion frame sliding portion and the seat cushion frame fixed portion; and / or The reinforcement mechanism is configured as a slide rail mechanism, which includes an upper rail directly or indirectly fixedly connected to the sliding portion of the cushion frame, and a lower rail directly or indirectly fixedly connected to the fixed portion of the cushion frame.

5. The seat assembly according to claim 2, characterized in that The seat assembly further comprises a flip assembly, which is capable of flipping the cushion frame, wherein the flip assembly is operatively connected to the cushion frame fixed portion, and the flip assembly is configured to flip the cushion frame fixed portion together with the cushion frame sliding portion and the sliding structure received thereon backward; and / or The backrest frame can be flipped to a folded state with the sliding part of the cushion frame via a backrest driving mechanism, and the flip assembly is configured to flip the backrest frame, the cushion frame and the sliding structure backward together when the sliding part of the backrest frame and the cushion frame is in the folded state; and / or The flip assembly is configured to flip the seat cushion frame together with the backrest frame and the sliding structure backward while the backrest frame is flipped via the backrest driving mechanism; and / or The backrest frame, the seat cushion frame and the sliding structure can be flipped backward into a recessed pit of the vehicle body to accommodate the backrest frame and the seat cushion frame and thereby make the back side of the seat cushion frame fixed part face outward; and / or The flip assembly comprises a seat frame flipping mechanism and a fixing bracket, wherein the fixing bracket is fixedly arranged on the body of the vehicle, the seat cushion frame fixing part is rotatably connected to the fixing bracket, and can be flipped relative to the fixing bracket via the seat frame flipping mechanism; and / or The seat frame flipping mechanism includes one or a combination of a flipping-driving motor, a booster spring mechanism, a recliner, and a rotating shaft, wherein the flipping-driving motor can electrically drive the fixed part of the seat cushion frame to flip, and the booster spring mechanism can assist the flipping of the fixed part of the seat cushion frame by means of spring force; and / or Flipping components are respectively arranged on the left and right sides of the rear end of the fixed part of the cushion frame, wherein: - the seat frame turning mechanism of the turning assembly on one of the left and right sides includes a turning-drive motor, and the seat frame turning mechanism of the turning assembly on the other side includes one of a booster spring mechanism, a rotating shaft or a turning-drive motor; or - the seat frame turning mechanism of the turning assembly on one of the left and right sides includes a power-assist spring mechanism, while the seat frame turning mechanism of the turning assembly on the other side includes a power-assist spring mechanism or a rotating shaft; and / or The seat frame flipping mechanism is constructed as a direct-drive motor-drive mechanism, which is configured to drive the fixed part of the seat cushion frame to flip via a single first rotating shaft with the help of a flip-drive motor, the first rotating shaft being fixedly connected to the fixed part of the seat cushion frame on the one hand, and fixedly connected to the output member of the flip-drive motor on the other hand, so that the flip-drive motor can drive the fixed part of the seat cushion frame to flip via the single first rotating shaft by rotating its rotating flange; and / or The booster spring mechanism comprises two booster springs and two mounting pins, the two mounting pins being fixed on a fixing bracket, the two booster springs being coaxially arranged, and one end of the two booster springs being fixedly connected to a fixing part of the cushion frame via a second rotating shaft; the other ends of the two booster springs are respectively provided with hook parts, and the two hook parts are respectively hooked on the two mounting pins, so that when the cushion frame flips along a first direction, the first booster spring of the two booster springs is tightened to generate a first preload force, while the second booster spring is released to provide a second preload force, and when the cushion frame flips along a second direction opposite to the first direction, the second booster spring is tightened and the first booster spring is released, wherein the second preload force can realize flipping assistance when the cushion frame flips along the first direction, and the first preload force can realize flipping assistance when the backrest frame flips along the second direction; and / or The seat frame flipping mechanism is constructed as a gear motor-flipping drive mechanism, and the gear motor-flipping drive mechanism is constructed to drive a first gear transmission member with arc-shaped teeth to rotate by means of a flip-driving motor through the meshing of gears on the motor output shaft, and the first gear transmission member is directly or indirectly fixedly connected to the fixed part of the seat cushion frame, so that the flip-driving motor can drive the fixed part of the seat cushion frame to flip through the gear and the first gear transmission member; and / or Flipping components are respectively arranged on the left and right sides of the rear end of the fixed part of the cushion frame, wherein: The seat frame flipping mechanism of the flip assembly on one of the left and right sides includes a combination of a flip-drive motor and a recliner, while the seat frame flipping mechanism of the flip assembly on the other side includes a combination of a flip-drive motor and a recliner, a recliner or a rotating shaft; and / or The flip-drive motor is configured as a stepper or servo motor, the recliner is configured as an electric recliner, the fixed disk of the electric recliner is fixedly connected to the fixed bracket, the rotating disk of the electric recliner is fixedly connected to the fixed part of the cushion frame, and the rotating disk is driven by the stepper or servo motor to rotate relative to the fixed disk, thereby driving the fixed part of the cushion frame to flip.

6. The seat assembly according to claim 5, characterized in that The seat assembly includes a floor lock mechanism, by which the seat cushion frame fixing portion can be switched between a fixed state and a released state, in which the seat cushion frame fixing portion is fixed at a seat mounting area of ​​a vehicle body, and in which the seat cushion frame fixing portion is released so that the seat cushion frame fixing portion together with the seat cushion frame sliding portion and the sliding mechanism can be flipped backward; and / or The ground lock mechanism is constructed to include a lock hook and a lock latch, wherein the lock hook is directly or indirectly fixedly connected to the seat cushion frame fixing part, the lock hook can be locked with the lock latch arranged on the vehicle body to keep the seat cushion frame fixing part in a fixed state, and can be disengaged from the lock latch to switch the seat cushion frame fixing part from the fixed state to a released state.

7. The seat assembly according to claim 5, characterized in that The seat assembly includes a slide-drive mechanism, which is arranged on the fixed part of the cushion frame and is operatively connected to the sliding part of the cushion frame to drive the sliding part of the cushion frame to slide relative to the fixed part of the cushion frame, wherein the flipping assembly is configured to flip the cushion frame backward together with the slide-drive mechanism.

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