A new energy vehicle seat with anti-impact function

Abstract

The present invention discloses a new energy vehicle seat with an impact resistance function, belonging to the technical field of vehicle seats, which includes: a seat, a slide rail frame is horizontally arranged below it, and the seat is slidably connected to the slide rail frame through a slider; impact energy absorption units, which are symmetrically installed front and back below the slide rail frame; deformation frames, which are two and symmetrically arranged left and right, and the upper ends of the deformation frames are respectively connected to the two impact energy absorption units; buffer units, which are correspondingly arranged below the impact energy absorption units, and the lower ends of the deformation frames are respectively connected to the two buffer units; the present invention adopts two impact energy absorption units arranged front and back and two buffer units connected through deformation frames, which can not only achieve impact protection in the horizontal direction, but also reduce the impact load in the vertical direction, improving the riding comfort of passengers.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive seats, and specifically relates to a new energy vehicle seat with anti-impact function. Background Art

[0002] As an important part inside an automobile, an automotive seat mainly consists of a seat cushion, a backrest, side back supports, a headrest, etc. Modern automotive seats usually adopt materials such as high-strength steel or aluminum alloy to enhance the rigidity and durability of the seat; these materials can absorb and disperse energy during a collision, reducing the harm to passengers.

[0003] Existing, such as the invention patent with the publication number CN118876834A, which mainly horizontally arranges a damper under the seat and uses damping liquid as a damping medium to absorb and consume impact force. Although it has a certain anti-impact effect, it cannot provide effective protection in the vertical direction, and it cannot provide an appropriate anti-impact protection effect according to the passenger load. At the same time, due to the flow of the damping liquid, a hysteresis effect will occur. When dealing with a large impact (especially for a rapidly changing impact force), the response speed of the damping liquid is relatively slow and cannot be adjusted quickly.

[0004] Therefore, it is necessary to provide a new energy vehicle seat with anti-impact function to solve the problems raised in the above background art. Summary of the Invention

[0005] To achieve the above object, the present invention provides the following technical solution: A new energy vehicle seat with anti-impact function, which includes:

[0006] A seat, a slide rail frame is horizontally arranged below it, and the seat is slidably connected to the slide rail frame through a slider;

[0007] An impact energy absorption unit, symmetrically installed front and back below the slide rail frame;

[0008] Deformation frames, two of which are symmetrically arranged left and right, and the upper ends of the deformation frames are respectively connected to the two impact energy absorption units;

[0009] Buffer units, correspondingly arranged below the impact energy absorption units, and the lower ends of the deformation frames are respectively connected to the two buffer units.

[0010] Preferably, an installation frame is arranged below the seat, the buffer units are all fixed in the installation frame, a sheath is sleeved outside the installation frame, and the upper end of the sheath is connected to the slide rail frame.

[0011] Preferably, the deformation frame is set as an X-shaped cross structure, and a fixing rod is horizontally connected between the deformation frames.

[0012] Preferably, the buffer unit includes:

[0013] Side plates, on one side of which two movable plates are arranged in parallel. Struts are horizontally fixed at diagonal positions on the movable plates, and one end of each strut is slidably connected to the side plate;

[0014] Spring telescopic rods, centrally connected to each movable plate, and one end of each spring telescopic rod is connected to the side plate.

[0015] Preferably, the impact energy absorption unit includes:

[0016] Two plate frames which are symmetrically arranged, and a reinforcing rod is horizontally fixed between the two plate frames;

[0017] Wing plates, rotatably connected to each plate frame. A guide block is slidably connected below the wing plate, and the deformation frame is hinged to the guide block;

[0018] Side springs, obliquely connected to each wing plate, and the other end of each side spring is connected to the reinforcing rod;

[0019] An energy absorption device, horizontally passing through and fixed between the two plate frames. Transmission rods are hinged on each wing plate, and one end of each transmission rod is connected to the energy absorption device.

[0020] Preferably, the energy absorption device includes:

[0021] A fixed cylinder, inside which two rotating shaft cylinders are symmetrically installed, and the rotating shaft cylinders are rotatably connected to the fixed cylinder coaxially;

[0022] A sliding shaft, slidably connected to the fixed cylinder, and an inner shaft is coaxially connected to one end of the sliding shaft;

[0023] A sliding groove is opened on the inner wall of the rotating shaft cylinder. A guide pin is vertically fixed on the inner shaft, and the guide pin slides along the sliding groove;

[0024] End tooth discs, fixed at one end of each rotating shaft cylinder away from the sliding shaft. The two end tooth discs are in abutting contact, and the rotating directions of the rotating shaft cylinders are opposite;

[0025] Inner springs, connected to the end tooth discs and located inside the rotating shaft cylinders, and the other end of each inner spring abuts against the inner shaft.

[0026] Preferably, the contact surfaces of the end tooth discs are all provided with a tooth-rubbing groove structure, and sound-absorbing cotton is filled in the fixed cylinder outside the end tooth discs.

[0027] Preferably, the inner shaft is rotatably connected to the sliding shaft through a one-way ratchet, and the rotating direction of the inner shaft is opposite to the rotating direction of the rotating shaft cylinder;

[0028] The sliding grooves are multiple and circumferentially distributed, and each sliding groove is arranged at a different slope. A cavity is formed inside the rotating shaft cylinder, and positioning grooves are formed in the cavity at the positions corresponding to the sliding grooves.

[0029] A driving part is arranged outside the fixed cylinder, and the driving part is connected and driven with one of the rotating shaft cylinders through the meshing action of gears.

[0030] Preferably, sealing cylinders are fixed inside the side plates at the positions corresponding to the movable plates. A push plug is slidably connected inside each sealing cylinder, and one end of the push plug is fixed to the support rod on the movable plate.

[0031] Liquid inlet chambers and liquid discharge chambers are formed in the side walls of the sealing cylinders, and a liquid inlet channel and a liquid discharge channel are formed inside the side plates. The liquid inlet channel and the liquid discharge channel are respectively communicated with the liquid inlet chambers and the liquid discharge chambers of the sealing cylinders.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] In the present invention, two impact energy absorption units are arranged front and back on the slide rail frame under the seat. The lower part of the impact energy absorption unit is connected to the buffer unit through a deformation frame. When an impact occurs, the buffer unit under the seat can give priority to buffering and earthquake resistance, and drive the deformation frame to fold and deform. At this time, the impact energy absorption unit can generate a certain energy absorption and shock reduction effect along with the deformation of the deformation frame, and achieve a secondary protection effect; among them, the energy absorption device in the impact energy absorption unit can also dynamically adjust the energy absorption working intensity according to the load of the seat passengers, so as to maintain the best impact energy absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is the overall structural schematic diagram of the present invention;

[0035] Figure 2 is the structural schematic diagram of the buffer unit in the present invention;

[0036] Figure 3 is the three-dimensional structural schematic diagram of the impact energy absorption unit in the present invention;

[0037] Figure 4 is the cross-sectional view of the impact energy absorption unit in the present invention;

[0038] Figure 5 is the half-sectional structural schematic diagram of the rotating shaft cylinder in the present invention;

[0039] Figure 6 is the internal structural cross-sectional view of the side plate in the present invention;

[0040] In the figure: 1. Seat; 11. Slide rail frame; 12. Sheath; 13. Deformation frame; 14. Mounting frame; 2. Impact energy absorption unit; 21. Plate frame; 22. Reinforcing rod; 23. Wing plate; 24. Guide block; 25. Side spring; 26. Transmission rod; 3. Buffer unit; 31. Side plate; 32. Movable plate; 33. Support rod; 34. Spring telescopic rod; 35. Sealing cylinder; 36. Push plug; 37. Liquid inlet chamber; 38. Liquid discharge chamber; 39. Liquid inlet channel; 310. Liquid discharge channel; 4. Energy absorption device; 41. Fixed cylinder; 42. Slide shaft; 43. Inner shaft; 44. Guide pin; 45. End gear disc; 46. Inner spring; 47. Driving part; 5. Rotating shaft cylinder; 51. Chute; 52. Cavity; 53. Positioning groove. Detailed implementation mode

[0041] Please refer to Figures 1-6 , in the embodiment of the present invention, a new energy vehicle seat with anti-impact function includes:

[0042] A seat 1, with a slide rail frame 11 horizontally arranged below it, and the seat 1 is slidably connected to the slide rail frame 11 through a slider; the slide rail frame 11 is usually made of wear-resistant material to ensure that the seat 1 can slide smoothly on the slide rail frame 11 for adjustment;

[0043] An impact energy absorption unit 2, symmetrically installed front and back below the slide rail frame 11; the impact energy absorption unit 2 is mainly used for energy absorption protection when an impact occurs suddenly, reducing the impact force energy and providing safety protection for passengers;

[0044] Deformation frames 13, two of which are symmetrically arranged left and right, and the upper ends of the deformation frames 13 are respectively connected to the two impact energy absorption units 2;

[0045] Buffer units 3, correspondingly arranged below the impact energy absorption units 2, and the lower ends of the deformation frames 13 are respectively connected to the two buffer units 3. Among them, in the coordinated work of the buffer unit 3 and the impact energy absorption unit 2, it can not only achieve impact protection in the horizontal direction, but also reduce the impact load in the vertical direction, improving the riding comfort of passengers.

[0046] In this embodiment, a mounting frame 14 is arranged below the seat 1, the buffer units 3 are all fixed in the mounting frame 14, a sheath 12 is sleeved outside the mounting frame 14, the upper end of the sheath 12 is connected to the slide rail frame 11, and the mounting frame 14 can be fixed to the vehicle frame through a seat adjuster.

[0047] As a preferred embodiment, the deformation frame 13 is arranged in an X-shaped cross structure, and fixed rods are horizontally connected between the deformation frames 13, which can be cross-folded and deformed. When the seat 1 is unloaded, the horizontal included angle of the deformation frame 13 is not less than 60°; during impact protection (such as the impact during vehicle driving and sudden stop of the vehicle), the seat 1 moves forward under the action of inertia, and the buffer unit 3 on the front side provides a buffering effect, while the deformation frame 13 deforms, and its horizontal included angle gradually becomes larger, enabling the passenger's body to better adapt to the direction of the impact force, and the impact energy absorption unit 2 under the seat 1 provides energy absorption protection in the vertical direction.

[0048] In this embodiment, the buffer unit 3 includes:

[0049] Side plates 31, on one side of which two movable plates 32 are arranged in parallel. Diagonal positions on the movable plates 32 are horizontally fixed with support rods 33, and one end of the support rods 33 is slidably connected to the side plates 31;

[0050] Spring telescopic rods 34, centrally connected to the respective movable plates 32. One end of the spring telescopic rods 34 is connected to the side plates 31, so that the impact force received in the horizontal direction is converted into elastic potential energy through compression deformation by the horizontally arranged spring telescopic rods 34, thereby reducing the impact force transmitted to the passenger.

[0051] In this embodiment, the impact energy absorption unit 2 includes:

[0052] Plate frames 21, two of which are symmetrically arranged, and a reinforcing rod 22 is horizontally fixed between the two plate frames 21;

[0053] Wing plates 23, rotatably connected to the respective plate frames 21. A guide block 24 is slidably connected below the wing plates 23, and the deformation frame 13 is hinged to the guide block 24;

[0054] Side springs 25, obliquely connected to the respective wing plates 23, and the other ends of the side springs 25 are connected to the reinforcing rod 22; the side springs 25 in the impact energy absorption unit 2 can provide additional vertical support and buffering through the wing plates 23. When the vehicle encounters bumps or sudden deceleration, the wing plates 23 can help disperse the impact force in the vertical direction, reduce the impact on the passenger, so that the seat can effectively absorb and disperse the impact energy in multiple directions and maximize the protection of the passenger's safety.

[0055] Energy absorption device 4, horizontally passing through and fixed between the two plate frames 21. Transmission rods 26 are hinged on the respective wing plates 23, and one end of the transmission rods 26 is connected to the energy absorption device 4.

[0056] In this embodiment, the energy absorption device 4 includes:

[0057] A fixed cylinder 41, inside which two rotating shaft cylinders 5 are symmetrically installed, and the rotating shaft cylinders 5 are all coaxially rotatably connected to the fixed cylinder 41;

[0058] A sliding shaft 42, slidably connected to the fixed cylinder 41, and one end of the sliding shaft 42 is coaxially connected with an inner shaft 43;

[0059] A sliding groove 51 is opened on the inner wall of the rotating shaft cylinder 5, a guide pin 44 is vertically fixed on the inner shaft 43, and the guide pin 44 slides along the sliding groove 51;

[0060] End tooth discs 45 are fixed at one end of each rotating shaft cylinder 5 away from the sliding shaft 42, the two end tooth discs 45 are in abutting contact, and the rotating directions of the rotating shaft cylinders 5 are opposite; wherein, the unfolded surface of the sliding groove 51 is in an inclined line structure. Therefore, when the wing plate 23 swings under the impact, it can drive the sliding shaft 42 to slide axially through the transmission rod 26. During the sliding process of the sliding shaft 42, the two rotating shaft cylinders 5 are rotated through the sliding action of the guide pin 44 and the sliding groove 51. It should be noted that the rotating directions of the two rotating shaft cylinders 5 are set in opposite directions, so that they can provide friction and jerky effects through the mutually contacting end tooth discs 45, thereby realizing the absorption and dispersion of energy;

[0061] An inner spring 46 is connected to the end tooth disc 45 and is located inside the rotating shaft cylinder 5. The other end of the inner spring 46 abuts against the inner shaft 43, so that part of the energy is reversely transmitted to the sliding shaft 42 through the inner spring 46 during the contact jerks of the end tooth disc 45, so as to form a counteracting effect with the sliding shaft 42 driven by the impact force, which can effectively offset part of the impact force and reduce the direct impact on the seat 1 and its components.

[0062] As a preferred embodiment, the contact surfaces of the end tooth discs 45 are all provided with a tooth-rubbing groove structure, and sound-absorbing cotton is filled inside the fixed cylinder 41 outside the end tooth discs 45.

[0063] In this embodiment, the inner shaft 43 is rotatably connected to the sliding shaft 42 through a one-way ratchet, and the rotation direction of the inner shaft 43 is opposite to the rotation direction of the rotating shaft cylinder 5. Specifically, when the inner spring 46 is compressed to the limit state and rebounds, the inner shaft 43 slides along the guiding path of the sliding groove 51 through the guide pin 44 during sliding, and a relative rotation is generated between the inner shaft 43 and the sliding shaft 42. At this time, the two rotating shaft cylinders 5 are in a static state under the contact action of the end tooth disks 45. During impact energy absorption, the inner shaft 43 and the sliding shaft 42 are fixed through a one-way ratchet, and the two rotating shaft cylinders 5 generate a relative rotational motion. Specifically, the two sliding shafts 42 in the energy absorption device 4 perform reciprocating linear displacements (towards or opposite directions) under the drive of the transmission rod 26. When the sliding shafts 42 slide towards each other, the inner shaft 43 applies an axial thrust to the inner spring 46 to gradually compress it. At the same time, the sliding shaft 42 and the inner shaft 43 form a rigid linkage, and a relative rotation (opposite rotation directions) is generated between the two rotating shaft cylinders 5. The tooth crests and tooth grooves of the two end tooth disks 45 are alternately engaged, generating a damping effect formed by periodic engagement and separation. When the sliding shafts 42 move in the opposite direction, the inner spring 46 elastically returns, and the guide pin 44 on the inner shaft 43 slides along the sliding groove 51, causing a relative rotation between the inner shaft 43 and the sliding shaft 42. At this stage, the two rotating shaft cylinders 5 are in a static locking state (the end tooth disks 45 are kept synchronized and fixed through tooth surface interlocking).

[0064] A plurality of the sliding grooves 51 are circumferentially distributed, and each of the sliding grooves 51 is provided with a different slope. A cavity 52 is formed in the rotating shaft cylinder 5, and positioning grooves 53 are formed in the cavity 52 at the positions of the sliding grooves 51. When the guide pin 44 is located in the cavity 52, the two rotating shaft cylinders 5 can be synchronously rotated and adjusted so that the guide pin 44 is located in the corresponding positioning groove 53, so that it can slide to the sliding groove 51 with the same slope through the positioning groove 53. Therefore, during use, different anti-impact energy absorption effects can be provided in impact protection through the sliding grooves 51 with different slopes based on the weight of the passenger. For example, when the weight of the passenger is relatively light, the slope of the sliding groove 51 is relatively small, the rotation range of the rotating shaft cylinder 5 is relatively small, and the generated friction and energy absorption are relatively small, which can avoid the seat reaction being too sensitive caused by excessive energy absorption and maintain a comfortable riding experience. When the weight of the passenger is relatively heavy, the slope of the sliding groove 51 is relatively large, the rotation range of the rotating shaft cylinder 5 is relatively large, and the generated friction and energy absorption are relatively large. This design can more effectively absorb and disperse the impact energy and provide stronger protection.

[0065] A driving part 47 is arranged outside the fixed cylinder 41. The driving part 47 is connected and driven to one of the rotating shaft cylinders 5 through the meshing of gears. Specifically, when a passenger sits on the seat 1, the gravity sensor inside the seat 1 detects and obtains the weight data of the passenger. At this time, the impact energy absorption unit 2 and the buffer unit 3 generate appropriate elastic deformation and gradually match the passenger's weight through the automatic adjustment mechanism. During this process, the driving part 47 in the energy absorption device 4 can preferably drive the rotating shaft cylinder 5 to rotate around the central axis through the meshing of gears (the rotation direction of the rotating shaft cylinder 5 is the same as the clamping direction of the two end tooth discs 45, prompting the rotating shaft cylinder 5 on the other end tooth disc 45 to rotate synchronously). When it deflects to a specified predetermined angle, the guide pin 44 on the inner shaft 43 accurately docks with the specified positioning groove 53 (there is no relative sliding during the docking stage). When subjected to an external impact, the buffer unit 3 provides a buffering effect. At this time, the guide pin 44 slides along the guiding path of the positioning groove 53 and forms a dynamic sliding contact with the corresponding sliding groove 51, causing the end tooth discs 45 on the two rotating shaft cylinders 5 to rotate at different angles, thereby changing the impact energy absorption intensity of the energy absorption device 4 and improving the protection performance and riding comfort of the seat system.

[0066] In this embodiment, a sealing cylinder 35 is fixed inside the side plate 31 at each movable plate 32. A push plug 36 is slidably connected inside the sealing cylinder 35. One end of the push plug 36 is fixed to the support rod 33 on the movable plate 32. The push plug 36 in the sealing cylinder 35 can appropriately adjust the pre-tightening force of the spring telescopic rod 34 in the impact energy absorption unit 2 during sliding adjustment, ensuring that the spring telescopic rod 34 can provide an appropriate initial resistance when subjected to an impact, thereby optimizing the energy absorption effect.

[0067] A liquid inlet chamber 37 and a liquid discharge chamber 38 are formed on the side wall of the sealing cylinder 35, and a liquid inlet channel 39 and a liquid discharge channel 310 are formed inside the side plate 31. The liquid inlet channel 39 and the liquid discharge channel 310 are respectively connected to the liquid inlet chamber 37 and the liquid discharge chamber 38 of each sealing cylinder 35.

[0068] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A new energy vehicle seat with an impact resistance function, characterized in that, It includes: A seat (1) with a slide rail frame (11) horizontally arranged below it. The seat (1) is slidably connected to the slide rail frame (11) through a slider. Impact energy absorption units (2), symmetrically installed front and back below the slide rail frame (11), which include: Plate frames (21), two of which are symmetrically arranged. Wing plates (23), rotatably connected to each of the plate frames (21). An energy absorption device (4), horizontally passing through and fixed between the two plate frames (21). Transmission rods (26) are hinged on each of the wing plates (23), and one end of the transmission rod (26) is connected to the energy absorption device (4). The energy absorption device (4) includes: A fixed cylinder (41) with two rotating shaft cylinders (5) symmetrically installed inside it. The rotating shaft cylinders (5) are coaxially rotatably connected to the fixed cylinder (41). A sliding shaft (42), slidably connected to the fixed cylinder (41). One end of the sliding shaft (42) is coaxially connected to an inner shaft (43). A sliding groove (51) is opened on the inner wall of the rotating shaft cylinder (5). A guide pin (44) is vertically fixed on the inner shaft (43), and the guide pin (44) slides along the sliding groove (51). End gear discs (45), fixed to one end of each of the rotating shaft cylinders (5) away from the sliding shaft (42). The two end gear discs (45) are in abutting contact, and the rotating directions of the rotating shaft cylinders (5) are opposite. Inner springs (46), connected to the end gear discs (45) and located inside the rotating shaft cylinders (5). The other end of the inner spring (46) abuts against the inner shaft (43). The inner shaft (43) is slidably connected to the sliding shaft (42) through a one-way ratchet, and the rotating direction of the inner shaft (43) is opposite to that of the rotating shaft cylinder (5). Deformation frames (13), two of which are symmetrically arranged left and right. The upper ends of the deformation frames (13) are both connected to the two impact energy absorption units (2). Buffer units (3), correspondingly arranged below the impact energy absorption units (2). The lower ends of the deformation frames (13) are both connected to the two buffer units (3).

2. The new energy vehicle seat with impact resistance function according to claim 1, characterized in that, An installation frame (14) is arranged below the seat (1). The buffer units (3) are both fixed inside the installation frame (14). A sheath (12) is sleeved outside the installation frame (14), and the upper end of the sheath (12) is connected to the slide rail frame (11).

3. The new energy vehicle seat with impact resistance function according to claim 1, characterized in that, The deformation frame (13) is set as an X-shaped cross structure, and a fixing rod is horizontally connected between the deformation frames (13).

4. The new energy vehicle seat with an impact resistance function according to claim 1, characterized in that, The buffer unit (3) includes: Side plates (31), with two movable plates (32) arranged in parallel on one side. Support rods (33) are horizontally fixed at diagonal positions on the movable plates (32), and one end of the support rod (33) is slidably connected to the side plate (31). Spring telescopic rods (34), centrally connected to each of the movable plates (32). One end of the spring telescopic rod (34) is connected to the side plate (31).

5. A new energy vehicle seat with anti - impact function according to claim 1, characterized in that, A strengthening rod (22) is horizontally fixed between the two plate frames (21). A guide block (24) is slidably connected below the wing plate (23), and the deformation frame (13) is hinged to the guide block (24). The side springs (25) are obliquely connected to the respective wing plates (23), and the other ends of the side springs (25) are connected to the reinforcing rods (22).

6. A new energy vehicle seat with anti-impact function according to claim 1, characterized in that, The contact surfaces of the end gear discs (45) are each provided with a tooth-rubbing groove structure, and sound-absorbing cotton is filled in the fixed cylinder (41) outside the end gear discs (45).

7. The new energy vehicle seat with impact resistance function according to claim 1, wherein The sliding grooves (51) are multiple and circumferentially distributed, and each of the sliding grooves (51) is arranged at a different slope. A cavity (52) is formed in the rotating shaft cylinder (5), and positioning grooves (53) are formed in the cavity (52) at the positions of the respective sliding grooves (51). A driving part (47) is arranged outside the fixed cylinder (41), and the driving part (47) is connected and driven to one of the rotating shaft cylinders (5) through gear meshing.

8. The new energy vehicle seat with impact resistance function according to claim 4, characterized in that, Sealing cylinders (35) are fixed inside the side plates (31) at the positions of the respective movable plates (32). A push plug (36) is slidably connected in the sealing cylinders (35), and one end of the push plug (36) is fixed to a support rod (33) on the movable plate (32). Liquid inlet chambers (37) and liquid discharge chambers (38) are formed in the side walls of the sealing cylinders (35), and a liquid inlet channel (39) and a liquid discharge channel (310) are formed in the side plates (31). The liquid inlet channel (39) and the liquid discharge channel (310) are respectively connected in correspondence with the liquid inlet chambers (37) and the liquid discharge chambers (38) of the respective sealing cylinders (35).

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