Seat framework, seat and vehicle

Abstract

The invention relates to a seat framework, a seat and a vehicle, the seat framework comprises a framework body, a first rotating device and a passive reset device, the framework body comprises a seat frame and a base, the base is arranged on the lower side of the seat frame, and the first rotating device comprises a first angle adjuster and a first rod; the first angle adjuster comprises a first angle adjuster body, a first support and a second support, the first angle adjuster body is connected with the first support and the second support, the first support is connected with the base, the second support is pivoted with the first end of the first rod, and the second end of the first rod is pivoted with the front end of the seat frame. The first angle adjuster body is used for adjusting the included angle between the first support and the second support, the passive reset device comprises a first exploder, the first exploder is connected with the first support, and when the first exploder works, the first support can drive the first rod to move downwards. The seat framework can be reset when a vehicle is collided, so that the safety of passengers is guaranteed, the occupied space is small, and the integration degree is high.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a seat frame, a seat, and a vehicle. Background Technology

[0002] With the development of intelligent vehicles and the continuous maturation of autonomous driving technology, occupants have increasingly higher demands for in-vehicle comfort, leading to the emergence of various forms of zero-gravity seats. However, when using zero-gravity seats, occupants are in a reclining position. In the event of a collision, the seatbelt's restraint on the occupants is weaker, posing a significant safety hazard.

[0003] To reduce occupant injuries from vehicle collisions, the seat frame needs to be reset to allow the occupant to return to the optimal posture for impact. In related technologies, the adjustment of the seat frame's front tilt angle often employs a "linear drive + linkage" method. However, when combined with a detonation reset device, this drive structure occupies a significant amount of space at the front of the seat frame, resulting in poor integration. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a seat frame whose seat frame can be reset in the event of a vehicle collision to ensure the safety of the occupants, and which occupies less space and has a high degree of integration.

[0006] An embodiment of the present invention also proposes a seat.

[0007] An embodiment of the present invention also proposes a vehicle.

[0008] The seat frame of an embodiment of the present invention includes: a frame body, the frame body including a seat frame and a base, the base being disposed on the lower side of the seat frame; a first rotating device, the first rotating device including a first angle adjuster and a first rod, the first angle adjuster including a first angle adjuster body, a first bracket and a second bracket, the first angle adjuster body being connected to the first bracket and the second bracket, the first bracket being connected to the base, the second bracket being pivotally connected to a first end of the first rod, the second end of the first rod being pivotally connected to the front end of the seat frame, the first angle adjuster body being used to adjust the included angle between the first bracket and the second bracket; and a passive reset device, the passive reset device including a first detonator, the first detonator being connected to the first bracket, the first bracket being able to drive the first rod downward to reduce the elevation angle of the front end of the seat frame when the first detonator is working.

[0009] According to an embodiment of the present invention, the seat frame has a first bracket connected to the base, a second bracket pivotally connected to the first end of the first rod, and a second end of the first rod pivotally connected to the front end of the seat frame. This allows adjustment of the angle between the first and second brackets via the first angle adjuster body, thereby adjusting the elevation angle of the front end of the seat frame. Since the first detonator is connected to the first bracket, when the first detonator operates, the first bracket can drive the first rod downwards. It can be understood that after the first detonator detonates, the first bracket can move downwards under the weight of the occupant, causing the first angle adjuster to drive the first rod downwards as well. This, in turn, lowers the front end of the seat frame, thereby resetting the angle of the front end of the seat frame to ensure occupant safety. The seat frame of this embodiment integrates the first detonator onto the first bracket of the first angle adjuster, resulting in a simple structure, small footprint, and high degree of integration.

[0010] In some embodiments, the passive reset device includes a first fixing member and a second fixing member, the base has a connecting frame, the first bracket is connected to the connecting frame, the first fixing member and the second fixing member are arranged at intervals and both pass through the connecting frame and the first bracket, the first detonator is connected to the second fixing member and the connecting frame, and when the first detonator is working, it can drive the second fixing member to separate from the connecting frame and the first bracket, so that the first bracket rotates downward about the axis of the first fixing member.

[0011] In some embodiments, the first bracket is provided with a first slide groove, the first slide groove extends along a first arc, the center of the first arc is located on the axis of the first fixing member, the second fixing member passes through the connecting frame and the first slide groove, the first fixing member is arranged adjacent to the top of the first slide groove, and the passive reset device further includes a first guide member, the first guide member passes through the connecting frame and the first slide groove, the first guide member is arranged adjacent to the bottom of the first slide groove.

[0012] In some embodiments, the width of the first groove gradually decreases from the bottom to the top of the first groove, and the outer diameter of the first guide is smaller than the width of the top of the first groove; and / or, the passive reset device further includes a first energy-absorbing sheet, which is sleeved on the first guide and connected to the first bracket, and the first energy-absorbing sheet can break to absorb energy, so as to prevent the first bracket from rotating downward about the axis of the first fixing member.

[0013] In some embodiments, the seat frame further includes a second rotating device, the second rotating device including a first linear drive member and a second rod, a first end of the second rod being pivotally connected to the rear end of the base, a second end of the second rod being pivotally connected to the rear end of the seat frame, a third end of the second rod being connected to the first end of the first linear drive member, and a second end of the first linear drive member being pivotally connected to the second end of the first rod. The length of the first linear drive member is adjustable to adjust the height of the seat frame.

[0014] In some embodiments, the first rotating device is in two sets, and the two sets of the first rotating device are respectively arranged on the left and right sides of the base. The second rotating device is in two sets, and the two sets of the second rotating device are respectively arranged on the left and right sides of the base.

[0015] In some embodiments, the seat frame includes a seat frame body and a first intermediate rod, the first intermediate rod passing through the seat frame body in the left-right direction of the base, the first ends of the two sets of first rods and the second ends of the two sets of first linear drive members are all pivotally connected to the first intermediate rod; and / or, the seat frame includes a seat frame body and a second intermediate rod, the two ends of the second intermediate rod are respectively pivotally connected to the third ends of the two sets of second rods, and the first ends of the two sets of first linear drive members are all connected to the second intermediate rod.

[0016] In some embodiments, the frame body further includes a backrest and a second angle adjuster. The second angle adjuster includes a second angle adjuster body, a third bracket, and a fourth bracket. The third bracket and the fourth bracket are both connected to the second angle adjuster body. The third bracket is connected to the seat frame, and the fourth bracket is connected to the backrest. The second angle adjuster body is used to adjust the angle between the third bracket and the fourth bracket. The passive reset device further includes a second detonator, a third fixing member, and a fourth fixing member. The third fixing member and the fourth fixing member are arranged at intervals and both pass through the third bracket and the seat frame. The second detonator is connected to the third fixing member. When the second detonator is working, it can drive the third fixing member to separate from the third bracket and the seat frame, so that the backrest rotates forward around the axis of the fourth fixing member.

[0017] In some embodiments, the seat frame further includes an active reset device, which includes a reset motor and a controller. The controller and the second adjuster body are both connected to the reset motor. When the controller receives a pre-collision signal, the reset motor can drive the second adjuster body to rotate so that the backrest rotates forward about the axis of the second adjuster body.

[0018] In some embodiments, the third bracket is provided with a second sliding groove, the second sliding groove extends along a second arc, the center of the second arc is located on the axis of the fourth fixing member, the third fixing member passes through the second sliding groove and the third bracket, the third fixing member is arranged adjacent to the bottom of the second sliding groove, and the passive reset device further includes a second guide member, the second guide member passes through the second sliding groove and the third bracket, the second guide member is arranged adjacent to the top of the second sliding groove.

[0019] In some embodiments, the width of the second slide gradually decreases from the top to the bottom of the second slide, and the outer diameter of the second guide is smaller than the width of the bottom of the second slide; and / or, the passive reset device further includes a second energy-absorbing sheet, which is sleeved on the second guide and connected to the third bracket. The second energy-absorbing sheet can break to absorb energy, thereby preventing the backrest from rotating forward about the axis of the fourth fixing member.

[0020] A seat according to another embodiment of the present invention includes a seat frame, the seat frame being any one of the seat frames described in any embodiment of the present invention; and a seat belt disposed on the seat frame.

[0021] According to an embodiment of the present invention, the seat frame has a first bracket connected to the base, a second bracket pivotally connected to the first end of the first rod, and a second end of the first rod pivotally connected to the front end of the seat frame. This allows adjustment of the angle between the first and second brackets via the first angle adjuster body, thereby adjusting the elevation angle of the front end of the seat frame. Since the first detonator is connected to the first bracket, when the first detonator operates, the first bracket can drive the first rod downwards. It can be understood that after the first detonator detonates, the first bracket can move downwards under the weight of the occupant, causing the first angle adjuster to drive the first rod downwards as well. This, in turn, lowers the front end of the seat frame, thereby resetting the angle of the front end of the seat frame to ensure occupant safety. The seat frame of this embodiment integrates the first detonator onto the first bracket of the first angle adjuster, resulting in a simple structure, small footprint, and high degree of integration.

[0022] Another embodiment of the vehicle of the present invention includes the seat frame or seat as described in any one embodiment of the present invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a seat frame according to an embodiment of the present invention.

[0024] Figure 2 This is a partial schematic diagram of a seat frame according to an embodiment of the present invention.

[0025] Figure 3This is a side view of a seat frame according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of a seat frame according to another embodiment of the present invention.

[0027] Figure 5 This is a side view of the seat frame according to another embodiment of the present invention.

[0028] Figure 6 This is a partial schematic diagram of the seat frame according to another embodiment of the present invention.

[0029] Figure 7 This is a partial schematic diagram of a seat frame (without the connecting frame) according to another embodiment of the present invention.

[0030] Figure 8 This is a partial schematic diagram of the seat frame according to another embodiment of the present invention.

[0031] Figure 9 This is a partial installation schematic diagram of the second angle adjuster of the seat frame according to another embodiment of the present invention.

[0032] Figure label:

[0033] 1. Frame body; 11. Seat frame; 111. Seat frame body; 112. First intermediate rod; 113. Second intermediate rod; 12. Backrest; 13. Base; 131. Connecting frame;

[0034] 2. First rotating device; 21. First angle adjuster; 211. First angle adjuster body; 212. First bracket; 2121. First slide groove; 213. Second bracket; 22. First rod; 23. Splined shaft; 24. Angle adjusting motor;

[0035] 3. Second rotating device; 31. First linear drive component; 32. Second rod;

[0036] 4. Second angle adjuster; 41. Second angle adjuster body; 42. Third bracket; 421. Second slide rail; 43. Fourth bracket;

[0037] 51. First ignition device; 521. First fixing component; 522. Second fixing component; 523. Third fixing component; 524. Fourth fixing component; 531. First guide component; 532. Second guide component; 541. First energy-absorbing plate; 542. Second energy-absorbing plate; 55. Second ignition device;

[0038] 6. Active reset device; 61. Reset motor;

[0039] 7. Seat cushion airbag. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] The following is a reference appendix. Figures 1 to 9 A seat frame, seat, and vehicle according to embodiments of the present invention are described.

[0042] like Figures 1 to 3 and Figure 6 As shown, the seat frame of this embodiment of the invention includes: a frame body 1, a first rotating device 2, and a passive reset device.

[0043] The frame body 1 includes a seat frame 11 and a base 13, with the base 13 located below the seat frame 11. The first rotating device 2 includes a first angle adjuster 21 and a first rod 22. The first angle adjuster 21 includes a first angle adjuster body 211, a first bracket 212, and a second bracket 213, which are connected to the first bracket 212 and the second bracket 213. It should be noted that the first bracket 212 is connected to the fixed portion of the first angle adjuster body 211, and the second bracket 213 is connected to the rotating portion of the first angle adjuster body 211. Therefore, when the first angle adjuster body 211 rotates, the included angle between the first bracket 212 and the second bracket 213 can be changed.

[0044] The first bracket 212 is connected to the base 13, the second bracket 213 is pivotally connected to the first end of the first rod 22, the second end of the first rod 22 is pivotally connected to the front end of the seat frame 11, the first angle adjuster body 211 is used to adjust the angle between the first bracket 212 and the second bracket 213, and the passive reset device includes a first detonator 51, which is connected to the first bracket 212. When the first detonator 51 is working, the first bracket 212 can drive the first rod 22 to move downward to reduce the elevation angle of the front end of the seat frame 11.

[0045] According to an embodiment of the present invention, the seat frame is connected to the base 13 via the first bracket 212, and the second bracket 213 is pivotally connected to the first end of the first rod 22, and the second end of the first rod 22 is pivotally connected to the front end of the seat frame 11. Therefore, the angle between the first bracket 212 and the second bracket 213 can be adjusted via the first angle adjuster body 211 to adjust the elevation angle of the front end of the seat frame 11. Since the first detonator 51 is connected to the first bracket 212, when the first detonator 51 is working, the first bracket 212 can drive the first rod 22 downwards. It can be understood that after the first detonator 51 is detonated, the first bracket 212 can move downwards under the weight of the occupant, causing the first angle adjuster 21 to drive the first rod 22 downwards as well, thereby lowering the front end of the seat frame 11. This allows the angle of the front end of the seat frame 11 to be reset, ensuring the safety of the occupant. The seat frame of this embodiment integrates the first detonator 51 onto the first bracket 212 of the first angle adjuster 21, resulting in a simple structure, small footprint, and high degree of integration.

[0046] When the occupant is in a zero-gravity posture, the angle of elevation of the seat frame 11 is usually greater than 10 degrees. Therefore, it is necessary to reset the seat frame 11 to within 10 degrees through a passive reset device to better meet the collision, thereby further improving the safety of the seat frame during use.

[0047] Understandably, when the first detonator 51 is detonated, the first bracket 212 is unlocked. Under the influence of the occupant's weight, the first bracket 212 can move downward relative to the base 13. At the same time, the first bracket 212 will drive the second bracket 213, the first rod 22 and the front end of the seat frame 11 to move downward, thereby completing the reset of the seat frame 11.

[0048] Optionally, the passive reset device includes a first fixing member 521 and a second fixing member 522. The base 13 has a connecting frame 131. The first bracket 212 is connected to the connecting frame 131. The first fixing member 521 and the second fixing member 522 are arranged at intervals and both pass through the connecting frame 131 and the first bracket 212. The first detonator 51 is connected to the second fixing member 522 and the connecting frame 131. When the first detonator 51 is working, it can drive the second fixing member 522 to separate from the connecting frame 131 and the first bracket 212, so that the first bracket 212 rotates downward around the axis of the first fixing member 521.

[0049] Understandably, the passive reset device will detonate the first detonator 51 after a vehicle collision. When the first detonator 51 detonates, it can cause the second fixing member 522 to separate from the connecting frame 131 and the first bracket 212. Therefore, the connecting frame 131 and the first bracket 212 are only connected by the first fixing member 521. Under the weight and inertia of the occupant, the occupant can press the front end of the seat frame 11 downwards. At this time, the first angle adjuster 21 will simultaneously rotate forward around the axis of the first fixing member 521. Correspondingly, the front end of the seat frame 11 will also descend synchronously, thereby allowing the occupant to return to the optimal posture to meet the collision. By setting the passive reset device of the seat frame 11 to the above structure, this application can reduce the space occupied by the passive reset device, require fewer parts, and make the seat frame 11 reset more smoothly.

[0050] Optionally, such as Figure 6 and Figure 7 As shown, the first bracket 212 is provided with a first sliding groove 2121, which extends along a first arc. The center of the first arc is located on the axis of the first fixing member 521. A second fixing member 522 passes through the connecting frame 131 and the first sliding groove 2121. The first fixing member 521 is arranged near the top of the first sliding groove 2121. The passive reset device also includes a first guide member 531, which passes through the connecting frame 131 and the first sliding groove 2121 and is arranged near the bottom of the first sliding groove 2121. It can be understood that when the seat frame 11 is passively reset, the first guide member 531 is fixed, and the first sliding groove 2121 can slide relative to the first guide member 531 along the first arc. The first guide member 531 can guide and limit the movement of the first bracket 212 to improve the reliability of the seat frame 11 reset.

[0051] In addition, this application can constrain the endpoint of the passive reset of the seat frame 11 by restricting the extension length of the first slide 2121. In other words, when the seat frame 11 is passively reset to the set position, the first guide 531 can stop the first bracket 212 from continuing to rotate, thereby ensuring that the occupant returns to the optimal collision posture.

[0052] Optionally, such as Figure 6 and Figure 7 As shown, from the bottom to the top of the first slide groove 2121, the width of the first slide groove 2121 gradually decreases, and the outer diameter of the first guide member 531 is smaller than the width of the top of the first slide groove 2121.

[0053] It should be noted that the distance between the two sidewalls of the first groove 2121 that are orthogonal to its extension direction (i.e., the sidewall adjacent to the first fixing member 521 and the sidewall away from the first fixing member 521) is the width dimension of the first groove 2121.

[0054] In other words, the width direction of the first groove 2121, the extension direction of the first groove 2121, and the thickness of the first bracket 212 are all orthogonal to each other.

[0055] Understandably, the width of the first slide groove 2121 gradually decreases from bottom to top. Therefore, when the first slide groove 2121 slides relative to the first guide member 531, the first bracket 212 can rotate downwards with damping. In other words, when the first slide groove 2121 slides relative to the first guide member 531, because the width of the first slide groove 2121 gradually narrows, the sidewall of the first slide groove 2121 will interfere with the first guide member 531. This can absorb the energy during the passive reset of the seat frame 11, achieving an energy absorption effect and better protecting occupant safety.

[0056] Optionally, such as Figure 7 As shown, the passive reset device also includes a first energy-absorbing plate 541. The first energy-absorbing plate 541 is sleeved on the first guide member 531 and connected to the first bracket 212. The first energy-absorbing plate 541 can break to absorb energy, thereby preventing the first bracket 212 from rotating downward around the axis of the first fixing member 521. For example, the first energy-absorbing plate 541 can be welded or integrally formed on the first bracket 212. The first guide member 531 passes through the first energy-absorbing plate 541. When the first sliding groove 2121 slides relative to the first guide member 531, the first energy-absorbing plate 541 can break and deform due to the downward impact force of the occupant, thereby achieving the energy absorption effect and better protecting the safety of the occupant.

[0057] In some embodiments, such as Figure 2 As shown, the seat frame also includes a second rotating device 3, which includes a first linear drive 31 and a second rod 32. For example, the first linear drive 31 can be a linear screw motor, a linear cylinder, or a linear hydraulic cylinder. The first end of the second rod 32 is pivotally connected to the rear end of the base 13, the second end of the second rod 32 is pivotally connected to the rear end of the seat frame 11, the third end of the second rod 32 is connected to the first end of the first linear drive 31, and the second end of the first linear drive 31 is pivotally connected to the second end of the first rod 22. The length of the first linear drive 31 is adjustable to adjust the height of the seat frame 11.

[0058] It is understandable that, such as Figure 2As shown, when the first linear drive member 31 extends, since the first end of the first linear drive member 31 is connected to the third end of the second rod 32, and the second end of the first linear drive member 31 is pivotally connected to the second end of the first rod 22, the second end of the first linear drive member 31 can drive the upper end of the first rod 22 to rise upwards. Correspondingly, the front end of the seat frame 11 can rise synchronously. At the same time, when the first linear drive member 31 extends, it can also drive the second rod 32 to rotate around the first end of the second rod 32 in the vertical plane, thereby allowing the second end of the second rod 32 to move upwards. Correspondingly, the rear end of the seat frame 11 can rise synchronously.

[0059] The seat frame of the embodiment of the present invention can raise or lower the height of the seat frame 11 as a whole by setting the second rotating device 3. Since the first linear drive 31 can drive the first rod 22 and the third rod to rotate at the same time, the height adjustment of the seat frame 11 can be completed without driving the first adjuster to rotate. This helps to improve the transmission efficiency of the height adjustment of the seat frame 11, and the transmission is more stable, resulting in a better user experience.

[0060] Optionally, such as Figure 2 As shown, there are two sets of first rotating devices 2, respectively arranged on the left and right sides of the base 13. Similarly, there are two sets of second rotating devices 3, also arranged on the left and right sides of the base 13. In this embodiment of the invention, the seat frame is provided with two sets of both the first rotating devices 2 and the second rotating devices 3. This improves the stability of the seat frame's tilt angle and height adjustment, enhances the structural strength and load-bearing capacity of the seat frame, and extends its service life.

[0061] In one example, such as Figure 2 As shown, the two first angle adjuster bodies 211 of the two sets of first rotating devices 2 are connected by a spline shaft 23. It can be understood that the spline shaft 23 passes through the two first angle adjuster bodies 211 in the left and right directions respectively, and is drivenly connected to the two first angle adjuster bodies 211. The angle adjustment motor 24 is drivenly connected to the spline shaft 23. Thus, the two first angle adjusters 21 can be controlled to rotate simultaneously by one angle adjustment motor 24, thereby improving the synchronicity of the front end elevation angle adjustment of the seat frame 11.

[0062] In some embodiments, such as Figure 2As shown, the seat frame 11 includes a seat frame body 111 and a first intermediate rod 112. The first intermediate rod 112 passes through the seat frame body 111 along the left-right direction of the base 13. The first ends of the two sets of first rods 22 and the second ends of the two sets of first linear drive members 31 are pivotally connected to the first intermediate rod 112. It can be understood that the first intermediate rod 112 can connect the first rods 22 of the two sets of first rotating devices 2 to ensure the synchronicity of the lifting of the two sets of first rotating devices 2, which helps to reduce the fluctuation feeling generated when adjusting the angle of the front end of the seat frame 11. Furthermore, since the first intermediate rod 112 passes through the seat frame body 111 along the left-right direction of the base 13, it can improve the structural strength of the seat frame 11 and increase the load-bearing capacity of the seat frame 11.

[0063] Furthermore, such as Figure 2 As shown, the seat frame 11 includes a second intermediate rod 113. Both ends of the second intermediate rod 113 are pivotally connected to the third ends of two sets of second rods 32, and the first ends of both sets of first linear drive members 31 are connected to the second intermediate rod 113. It can be understood that the second intermediate rod 113 connects the second rods 32 of the two sets of second rotating devices 3 to ensure the synchronicity of the lifting of the two sets of second rotating devices 3. This helps to reduce the fluctuation sensation generated during angle adjustment at the rear end of the seat frame 11. Furthermore, since the second intermediate rod 113 passes through the seat frame body 111 along the left-right direction of the base 13, it can improve the structural strength of the seat frame 11 and increase its load-bearing capacity.

[0064] In some embodiments, such as Figures 2 to 5 As shown, the frame body 1 also includes a backrest 12 and a second angle adjuster 4. The second angle adjuster 4 includes a second angle adjuster body 41, a third bracket 42, and a fourth bracket 43, both of which are connected to the second angle adjuster body 41. It should be noted that the third bracket 42 is connected to the rotating part of the second angle adjuster body 41, and the fourth bracket 43 is connected to the fixed part of the second angle adjuster body 41. Therefore, when the second adjuster body 41 rotates, the included angle between the third bracket 42 and the fourth bracket 43 can be changed.

[0065] The third bracket 42 is connected to the seat frame 11, and the fourth bracket 43 is connected to the backrest 12. The second angle adjuster body 41 is used to adjust the included angle between the third bracket 42 and the fourth bracket 43. The passive reset device also includes a second detonator 55, a third fixing member 523 and a fourth fixing member 524. The third fixing member 523 and the fourth fixing member 524 are arranged at intervals and are both inserted through the third bracket 42 and the seat frame 11. The second detonator 55 is connected to the third fixing member 523. When the second detonator 55 is working, it can drive the third fixing member 523 to separate from the third bracket 42 and the seat frame 11 so that the backrest 12 can rotate forward around the axis of the fourth fixing member 524.

[0066] According to an embodiment of the present invention, when a vehicle is about to be involved in a collision, the controller can receive a pre-collision signal and control the reset motor 61 to start. The reset motor 61 drives the second adjuster body 41 to rotate, causing the backrest 12 to rotate forward around the axis of the second adjuster body 41, thereby resetting the backrest 12 and allowing the occupant to return to the optimal posture to meet the collision. In addition, after a collision, the second detonator 55 is activated, which allows the third fixing member 523 to separate from the third bracket 42 and the seat frame 11. At this time, the third bracket 42 and the seat frame 11 are connected by the fourth fixing member 524. Under the inertial force of the occupant and the traction of the seat belt on the seat frame, the backrest 12 can rotate forward around the axis of the fourth fixing member 524 to reset the backrest 12.

[0067] like Figure 4 As shown, the seat frame also includes an active reset device 6, which includes a reset motor 61 and a controller. The controller and the second adjuster body 41 are both connected to the reset motor 61. When the controller receives a pre-collision signal, the reset motor 61 can drive the second adjuster body 41 to rotate, so that the backrest 12 rotates forward around the axis of the second adjuster body 41.

[0068] Therefore, the seat frame of the embodiment of the present invention can actively and passively reset the backrest 12 through two safety measures: active reset device 6 and passive reset device, so as to meet the safety protection of the occupants in zero-gravity posture during driving, and the reliability is high.

[0069] On the other hand, the passive reset device of the seat frame in the embodiment of the present invention requires fewer parts. The passive reset of the backrest 12 can be completed by only the second detonator 55, the third fixing member 523 and the fourth fixing member 524. Moreover, the structure is simple, easy to process and manufacture, and has a low cost.

[0070] Understandably, the vehicle is equipped with sensors (not shown) to detect whether a collision has occurred and to provide warnings of impending collisions. In other words, the sensors can sense whether there are dangers in the driving environment outside the vehicle. When the system determines that a collision is imminent, it can transmit a pre-collision signal to the controller. This allows the controller to drive the reset motor 61 to rotate rapidly. Since the second adjuster body 41 is connected to the backrest 12 via the fourth bracket 43, the second adjuster body 41 can quickly reset the backrest 12 via the fourth bracket 43, allowing the occupant to return to the optimal posture to prepare for a collision.

[0071] It should be noted that when the system determines that the expected safety can be achieved by using the active reset device 6, the passive reset device does not need to be activated. Conversely, when the system determines that the expected safety cannot be achieved by using the active reset device 6, the passive reset device needs to be activated.

[0072] Specifically, after a vehicle collision, the second detonator 55 will be detonated. When the second detonator 55 is detonated, it can cause the third fixing member 523 to separate from the third bracket 42 and the seat frame 11. Therefore, the third bracket 42 and the seat frame 11 are only connected by the fourth fixing member 524. Under the inertial force of the occupant and the traction of the seat belt on the seat frame, the occupant can drive the backrest 12 to rotate forward. At this time, the second angle adjuster 4 and the backrest 12 will rotate forward around the axis of the fourth fixing member 524 to reset the backrest 12, thereby allowing the occupant to return to the optimal posture to meet the collision.

[0073] like Figure 4 As shown, the reset motor 61 can normally adjust the angle of the second adjuster 4 when the vehicle is not in danger. For example, when the system senses a risk in the driving scenario outside the vehicle, it combines the state of the occupants and the state of the vehicle, and after the safety calculation module judges the severity and issues an active reset signal, it can drive the backrest 12 to quickly recover 20 degrees within 700ms, so that the occupants return to the optimal posture to meet the collision.

[0074] Optionally, such as Figure 4 , Figure 8 and Figure 9 As shown, the third bracket 42 is provided with a second sliding groove 421, which extends along a second arc. The center of the second arc is located on the axis of the fourth fixing member 524. The third fixing member 523 passes through the second sliding groove 421 and the third bracket 42, and is arranged near the bottom of the second sliding groove 421. The passive reset device also includes a second guide member 532, which passes through the second sliding groove 421 and the third bracket 42, and is arranged near the top of the second sliding groove 421. It can be understood that when the backrest 12 is passively reset, the second guide member 532 is fixed, and the second sliding groove 421 can slide relative to the second guide member 532 along the second arc. The second guide member 532 can guide and limit the movement of the third bracket 42 to improve the reliability of the backrest 12 reset.

[0075] In addition, this application can constrain the endpoint of the passive reset of the backrest 12 by restricting the extension length of the second slide 421. In other words, when the backrest 12 is passively reset to the set position, the third bracket 42 can be stopped by the second guide 532 to continue rotating, thereby ensuring that the occupant returns to the optimal collision posture.

[0076] Optionally, such as Figure 8 and Figure 9 As shown, from the top to the bottom of the second slide groove 421, the width of the second slide groove 421 gradually decreases, and the outer diameter of the second guide member 532 is smaller than the width of the bottom of the second slide groove 421.

[0077] It should be noted that the distance between the two sidewalls of the second groove 421 that are orthogonal to its extension direction (i.e., the sidewall adjacent to the fourth fixing member 524 and the sidewall away from the fourth fixing member 524) is the width dimension of the second groove 421.

[0078] In other words, the width direction of the second slide groove 421, the extension direction of the second slide groove 421, and the thickness of the third support 42 are all orthogonal to each other.

[0079] like Figure 8 and Figure 9 As shown, the width of the second slide groove 421 gradually decreases from top to bottom. Therefore, when the second slide groove 421 slides relative to the second guide member 532, the third bracket 42 can rotate forward with damping. In other words, when the second slide groove 421 slides relative to the second guide member 532, because the width of the second slide groove 421 gradually narrows, the sidewall of the second slide groove 421 will interfere with the second guide member 532. This can absorb the energy when the backrest 12 is passively reset, thus achieving an energy absorption effect and better protecting the safety of the occupants.

[0080] Optionally, such as Figure 9 As shown, the passive reset device also includes a second energy-absorbing piece 542. The second energy-absorbing piece 542 is sleeved on the second guide member 532 and connected to the third bracket 42. The second energy-absorbing piece 542 can break to absorb energy, thereby preventing the backrest 12 from rotating forward around the axis of the fourth fixing member 524. For example, the second energy-absorbing piece 542 can be welded or integrally formed on the third bracket 42. The second guide member 532 passes through the second energy-absorbing piece 542. When the second slide groove 421 slides relative to the second guide member 532, the second energy-absorbing piece 542 can break and deform due to the impact force of the backrest 12 and the seat belt, thereby achieving the energy absorption effect to better protect the safety of the occupants.

[0081] In one example, the second energy-absorbing piece 542 includes an outer ring portion, an inner ring portion, and an energy-absorbing portion (not shown). The outer ring portion is located outside the inner ring portion, and the outer ring portion and the inner ring portion are connected by one or more energy-absorbing portions. The outer ring portion is welded or integrally formed on the third bracket 42, and the inner ring portion is sleeved on the second guide member 532. When the second slide groove 421 slides relative to the second guide member 532, the energy-absorbing portion can break and deform due to the impact force of the backrest 12 and the seat belt against the outer ring portion or the inner ring portion, thereby achieving the energy absorption effect.

[0082] Another embodiment of the seat of the present invention includes a seat frame and a seat belt. The seat frame is the seat frame of the present invention, and the seat belt is disposed on the seat frame. The technical advantages of the seat of the present invention are the same as the technical advantages of the seat frame of the above embodiments, and will not be repeated here.

[0083] In the event of emergency braking or a collision, occupants can use their seatbelts to move the backrest 12 forward. For example, the seatbelt may be a pre-tensioned seatbelt.

[0084] Furthermore, the seat also includes airbags, including side airbags and seat cushion airbags 7. The side airbags are located on one side of the backrest 12 along the left and right direction, and the seat cushion airbags 7 are located on the upper side of the seat frame 11.

[0085] Another embodiment of the vehicle of the present invention includes the seat frame or seat of the present invention. The technical advantages of the vehicle of the present invention are the same as those of the seat frame or seat of the above embodiments, and will not be repeated here.

[0086] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0087] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0088] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0089] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0090] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0091] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A seat frame, characterized in that, include: The skeleton body (1) includes a seat frame (11) and a base (13), wherein the base (13) is located on the lower side of the seat frame (11); The first rotating device (2) includes a first angle adjuster (21) and a first rod (22). The first angle adjuster (21) includes a first angle adjuster body (211), a first bracket (212), and a second bracket (213). The first angle adjuster body (211) is connected to the first bracket (212) and the second bracket (213). The first bracket (212) is connected to the base (13). The second bracket (213) is pivotally connected to the first end of the first rod (22). The second end of the first rod (22) is pivotally connected to the front end of the seat frame (11). The first angle adjuster body (211) is used to adjust the included angle between the first bracket (212) and the second bracket (213). A passive reset device, comprising a first detonator (51), which is connected to the first bracket (212). When the first detonator (51) is working, the first bracket (212) can drive the first rod (22) to move downward to reduce the elevation angle of the front end of the seat frame (11).

2. The seat frame according to claim 1, characterized in that, The passive reset device includes a first fixing member (521) and a second fixing member (522). The base (13) has a connecting frame (131). The first bracket (212) is connected to the connecting frame (131). The first fixing member (521) and the second fixing member (522) are arranged at intervals and both pass through the connecting frame (131) and the first bracket (212). The first detonator (51) is connected to the second fixing member (522) and the connecting frame (131). When the first detonator (51) is working, it can drive the second fixing member (522) to separate from the connecting frame (131) and the first bracket (212), so that the first bracket (212) rotates downward around the axis of the first fixing member (521).

3. The seat frame according to claim 2, characterized in that, The first bracket (212) is provided with a first sliding groove (2121), which extends along a first arc. The center of the first arc is located on the axis of the first fixing member (521). The second fixing member (522) passes through the connecting frame (131) and the first sliding groove (2121). The first fixing member (521) is arranged near the top of the first sliding groove (2121). The passive reset device also includes a first guide member (531), which passes through the connecting frame (131) and the first sliding groove (2121). The first guide member (531) is arranged near the bottom of the first sliding groove (2121).

4. The seat frame according to claim 3, characterized in that, In the direction from the bottom to the top of the first chute (2121), the width of the first chute (2121) gradually decreases, and the outer diameter of the first guide (531) is smaller than the width of the top of the first chute (2121). And / or, the passive reset device further includes a first energy-absorbing piece (541), which is sleeved on the first guide (531) and connected to the first bracket (212). The first energy-absorbing piece (541) can break to absorb energy, thereby preventing the first bracket (212) from rotating downward about the axis of the first fixing member (521).

5. The seat frame according to claim 3, characterized in that, It also includes a second rotating device (3), which includes a first linear drive (31) and a second rod (32). The first end of the second rod (32) is pivotally connected to the rear end of the base (13), the second end of the second rod (32) is pivotally connected to the rear end of the seat frame (11), the third end of the second rod (32) is connected to the first end of the first linear drive (31), and the second end of the first linear drive (31) is pivotally connected to the second end of the first rod (22). The length of the first linear drive (31) is adjustable to adjust the height of the seat frame (11).

6. The seat frame according to claim 5, characterized in that, The first rotating device (2) consists of two sets, with the two sets of the first rotating device (2) arranged on the left and right sides of the base (13) respectively. The second rotating device (3) consists of two sets, with the two sets of the second rotating device (3) arranged on the left and right sides of the base (13) respectively.

7. The seat frame according to claim 6, characterized in that, The seat frame (11) includes a seat frame body (111) and a first intermediate rod (112). The first intermediate rod (112) passes through the seat frame body (111) along the left and right direction of the base (13). The first ends of the two sets of first rods (22) and the second ends of the two sets of first linear drive members (31) are pivotally connected to the first intermediate rod (112). And / or, the seat frame (11) includes a seat frame body (111) and a second intermediate rod (113), the two ends of the second intermediate rod (113) are respectively pivotally connected to the third ends of two sets of second rods (32), and the first ends of two sets of first linear drive members (31) are connected to the second intermediate rod (113).

8. The seat frame according to claim 1, characterized in that, The frame body (1) also includes a backrest (12) and a second angle adjuster (4). The second angle adjuster (4) includes a second angle adjuster body (41), a third bracket (42), and a fourth bracket (43). The third bracket (42) and the fourth bracket (43) are both connected to the second angle adjuster body (41). The third bracket (42) is connected to the seat frame (11), and the fourth bracket (43) is connected to the backrest (12). The second angle adjuster body (41) is used to adjust the angle between the third bracket (42) and the fourth bracket (43). The passive reset device further includes a second detonator (55), a third fixing member (523), and a fourth fixing member (524). The third fixing member (523) and the fourth fixing member (524) are arranged at intervals and are both inserted through the third bracket (42) and the seat frame (11). The second detonator (55) is connected to the third fixing member (523). When the second detonator (55) is working, it can drive the third fixing member (523) to separate from the third bracket (42) and the seat frame (11) so that the backrest (12) rotates forward around the axis of the fourth fixing member (524).

9. The seat frame according to claim 8, characterized in that, It also includes an active reset device (6), which includes a reset motor (61) and a controller. The controller and the second angle adjuster body (41) are both connected to the reset motor (61). When the controller receives a pre-collision signal, the reset motor (61) can drive the second angle adjuster body (41) to rotate so that the backrest (12) rotates forward around the axis of the second angle adjuster body (41).

10. The seat frame according to claim 8, characterized in that, The third bracket (42) is provided with a second slide groove (421), which extends along a second arc. The center of the second arc is located on the axis of the fourth fixing member (524). The third fixing member (523) passes through the second slide groove (421) and the third bracket (42). The third fixing member (523) is arranged near the bottom of the second slide groove (421). The passive reset device also includes a second guide member (532), which passes through the second slide groove (421) and the third bracket (42). The second guide member (532) is arranged near the top of the second slide groove (421).

11. The seat frame according to claim 10, characterized in that, In the direction from the top to the bottom of the second slide (421), the width of the second slide (421) gradually decreases, and the outer diameter of the second guide (532) is smaller than the width of the bottom of the second slide (421). And / or, the passive reset device further includes a second energy-absorbing piece (542), which is sleeved on the second guide (532) and connected to the third bracket (42). The second energy-absorbing piece (542) can break to absorb energy, thereby preventing the backrest (12) from rotating forward about the axis of the fourth fixing member (524).

12. A type of seat, characterized in that, include: A seat frame, wherein the seat frame is any one of claims 1-11; The seat belt is mounted on the seat frame.

13. A vehicle, characterized in that, Includes the seat frame according to any one of claims 1-11 or the seat according to claim 12.

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