Vehicle seating assembly

Abstract

The invention relates to a vehicle seat assembly which comprises a seat cushion assembly and a seat backrest assembly. The seat backrest assembly is connected with the seat cushion assembly, and performs spatial dynamic movement relative to the seat cushion assembly through a connecting structure between the seat backrest assembly and the seat cushion assembly; in the rotating process of the seat backrest, the seat backrest is not provided with a fixed rotating shaft similar to that of a traditional seat, the seat backrest dynamically moves in the space, and the dynamic virtual rotating shaft of the seat backrest in the rotating process can always completely coincide with a physiological rotating shaft connected with the trunk and the thigh of the human body associated with the seat; a human body only feels the change of the angle of the back and does not feel the relative sliding of the back, the waist and the backrest of the seat, clothes worn by the human body cannot be pulled, hugged and other uncomfortable conditions, the overall comfort of the sitting posture of the human body is effectively guaranteed, and the consistent sitting comfort is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle manufacturing, and in particular to a vehicle seat assembly. Background Art

[0002] When using a car, the posture of the occupants has an important impact on comfort. In the prior art, the seat back assembly has a specific rotation axis and the position of the rotation axis is fixed, and the fixed rotation axis does not coincide with the physiological rotation axis connecting the human torso and thighs associated with the seat; when the seat back rotates around the fixed rotation axis, the back and waist of the human body must leave the seat back or slide relative to the seat back and adjust continuously to form the simultaneous rotation of the seat back and the upper torso of the human body, which causes the driver and passengers to feel obvious insecurity and discomfort, affecting the riding comfort, reducing the product friendliness, and lacking humanized care. Summary of the invention

[0003] The purpose of the present invention is to provide a vehicle seat assembly in response to the deficiencies in the prior art. On the one hand, it can solve the discomfort and insecurity caused by the relative sliding movement between the back and waist of the human body and the seat back when the seat back is rotated. On the other hand, it can reduce the operating force for adjusting the seat back angle and shorten the time required for adjusting the seat back angle. The seat back can be quickly and accurately locked to a more comfortable target angle, thereby improving the riding comfort of the seat assembly and further improving driving safety.

[0004] The present invention is achieved by adopting the following technical solutions:

[0005] Vehicle seat assembly, including seat cushion assembly and seat back assembly;

[0006] The seat back assembly is connected to the seat cushion assembly and rotates relative to the seat cushion assembly through a connection structure therebetween to perform spatial dynamic movement.

[0007] As a further illustration of the invention, the seat cushion assembly includes a seat cushion body and a seat cushion frame;

[0008] The seat cushion body is connected to the seat cushion frame.

[0009] As a further illustration of the invention, the seat back assembly includes a seat cushion body and a seat back frame;

[0010] The seat cushion body is connected to the seat back frame.

[0011] As a further description of the invention, two opposite arc-shaped guide grooves are arranged on the outer side of the seat cushion frame, matching arc-shaped sliding guide ribs are arranged in the arc-shaped guide grooves, and a driving gear groove is arranged on the arc-shaped guide grooves.

[0012] As a further explanation of the invention, two opposite arc-shaped racks matching the arc-shaped guide grooves are arranged on the outer side of the seat back frame, and the arc-shaped racks are provided with arc-shaped sliding guide grooves matching the arc-shaped sliding guide ribs;

[0013] The arc-shaped rack slides in the arc-shaped guide groove, and the arc-shaped sliding guide groove slides along the arc-shaped sliding guide rib.

[0014] As a further explanation of the invention, the seat cushion frame is also provided with a motor and two driving gears; the bidirectional output end of the motor is connected to the two driving gears through a transmission rod respectively; the end of the transmission rod is provided with a rotating end seat;

[0015] The driving gear and the rotating end seat are arranged in the driving gear groove, and the driving gear is meshed with the arc-shaped rack.

[0016] As a further description of the invention, a central controller is also included; the motors are connected and controlled by the central controller.

[0017] As a further illustration of the invention, it also includes a seat cushion pressure sensing element, a seat back pressure sensing element;

[0018] The seat cushion pressure sensing element is arranged on the seat cushion frame;

[0019] The seat back pressure sensing element is arranged on the seat back frame;

[0020] The seat cushion pressure sensing element and the seat back pressure sensing element are both controlled and connected by a central controller.

[0021] As a further illustration of the invention, a rack connection reinforcement member and a seat back reinforcement member are also provided on the seat back frame;

[0022] The seat back pressure sensing element is arranged on the seat back reinforcement.

[0023] Compared with the prior art, the present invention has the following beneficial technical effects:

[0024] During the rotation of the seat back of the present invention, it does not have a fixed rotation axis similar to that of a traditional seat. The seat back moves dynamically in space, and the final position of the dynamic movement is dynamically determined according to the spatial comfort angle required for the human backrest. The dynamic virtual rotation axis during the rotation of the seat back can always coincide completely with the physiological rotation axis connecting the human torso and thigh associated with the seat. When adjusting the angle of the seat back during normal driving or parking and resting, the contact state between the human back, waist and the seat back does not change, and the buttocks and thighs do not need to be readjusted to ensure that the human body, especially the back and waist, can regain a comfortable sitting posture after the angle of the seat back changes. That is, the human body only feels the change in the back angle and does not feel the relative sliding between the back, waist and the seat back, and the clothes worn by the human body will not be pulled, crowded or other uncomfortable situations, effectively ensuring the overall comfort of the human sitting posture and obtaining a consistent riding comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic structural diagram of the vehicle seat assembly provided by the embodiment of the present invention;

[0026] Figure 2 Schematic structural diagram of the arc-shaped guide groove provided by the embodiment of the present invention;

[0027] Figure 3 Schematic structural diagram of the arc-shaped rack provided by the embodiment of the present invention;

[0028] Figure 4 Schematic assembly diagram of the arc-shaped rack in the arc-shaped guide groove structure provided by the embodiment of the present invention;

[0029] Figure 5 Schematic structural diagram of the driving gear provided by the embodiment of the present invention;

[0030] Figure 6 Schematic assembly diagram of the driving gear in the arc-shaped guide groove provided by the embodiment of the present invention;

[0031] Figure 7 Schematic connection diagram of the driving gear meshing with the arc-shaped rack provided by the embodiment of the present invention;

[0032] Figure 8 Cross-section of the driving gear meshing with the arc-shaped rack provided by the embodiment of the present invention Figure 1 ;

[0033] Fig. 9 Cross-section of the driving gear meshing with the arc-shaped rack provided by the embodiment of the present invention Figure 2 ;

[0034] Fig.10 Schematic distribution of the pressure sensing elements provided by the embodiment of the present invention Figure 1 ;

[0035] Fig.11 Schematic diagram of the distribution of pressure sensing elements provided in an embodiment of the present invention Figure 2 ;

[0036] Fig.12 A schematic diagram of the structure of a vehicle seat assembly when a human body is in a normal sitting position provided by an embodiment of the present invention;

[0037] Fig.13 A schematic diagram of the structure of a vehicle seat assembly when a person is driving in a lying position provided by an embodiment of the present invention;

[0038] Fig.14 A vehicle seat assembly structure for a person lying down to rest is provided in an embodiment of the present invention.

[0039] In the figure: 1, seat cushion assembly; 11, seat cushion body; 12, seat cushion frame; 13, seat cushion pressure sensing element; 14, central drive motor assembly; 121, arc guide groove; 122, arc sliding guide rib; 141, driving gear; 142, transmission rod; 143, central controller; 144, motor; 145, rotating end seat;

[0040] 2. Seat back assembly; 21. Seat cushion body; 22. Seat back frame; 23. Seat back pressure sensing element; 221. Arc-shaped rack; 222. Rack connecting reinforcement; 223. Seat back reinforcement; 2211. Arc sliding guide groove. DETAILED DESCRIPTION

[0041] In order to better understand the present invention, the following Figure 1-14 The vehicle seat assembly provided by the embodiment of the present invention is described in detail.

[0042] like Figure 1 , 12 -As shown in FIG14 , a vehicle seat assembly provided in an embodiment of the present invention comprises a seat cushion assembly 1 and a seat back assembly 2; the seat back assembly 2 is connected to the seat cushion assembly 1, and dynamically moves in space relative to the seat cushion assembly 1 through a connection structure therebetween, and the final position of the dynamic spatial movement is dynamically determined based on the spatial comfort angle required to be adjusted for the back of a human body.

[0043] like Figure 1 As shown, the embodiment of the present invention provides a seat cushion assembly 1 and a seat back assembly 2, preferably as follows:

[0044] The seat cushion assembly 1 comprises a seat cushion body 11 and a seat cushion frame 12 ; the seat cushion body 11 and the seat cushion frame 12 are connected.

[0045] The seat back assembly 2 includes a seat cushion body 21 and a seat back frame 22 ; the seat cushion body 21 and the seat back frame 22 are connected.

[0046] like Figure 2-4 As shown, the embodiment of the present invention provides a connection structure between the seat cushion assembly 1 and the seat back assembly 2, which is preferably as follows:

[0047] The seat cushion frame 12 is provided with two opposite circular arc guide grooves 121 on the outer side, and a driving gear groove is provided on the circular arc guide groove 121. The seat back frame 22 is provided with two opposite circular arc racks 221 matching with the circular arc guide grooves 121, and the circular arc racks 221 slide in the circular arc guide grooves 121.

[0048] The arc-shaped rack 221 realizes arc motion in the arc-shaped guide groove 121, and the virtual centers of the arc-shaped rack 221 and the arc-shaped guide groove 121 on the same side coincide with each other, and the virtual centers of the arc-shaped racks 221 or the arc-shaped guide groove 121 on the left and right sides are connected to form a dynamic virtual rotation axis during the rotation of the seat back assembly 2, and this dynamic virtual rotation axis is basically coincident with the physiological rotation axis connecting the human trunk and thighs associated with the seat; when the seat back angle needs to be adjusted during normal driving or parking for a rest, the contact state between the back, waist and seat back of the human body does not change, and the buttocks and thighs do not need to be readjusted to ensure that the human body, especially the back and waist, regain a comfortable sitting posture after the seat back angle changes, that is, the human body only feels the change in the back angle, and cannot feel the relative sliding of the back, waist and seat back, and the clothes worn by the human body will not be pulled, squeezed or other uncomfortable situations, effectively ensuring the overall comfort of the human body's sitting posture and obtaining a consistent riding comfort.

[0049] Furthermore, a matching arc sliding guide rib 122 is provided in the arc-shaped guide groove 121 , and an arc sliding guide groove 2211 matching the arc sliding guide rib 122 is provided on the arc-shaped rack 221 ; the arc sliding guide groove 2211 slides along the arc sliding guide rib 122 .

[0050] The above-mentioned arc sliding guide groove 2211 and the arc sliding guide rib 122 are in sliding contact and clearance fit. Through this matching structure, it is possible to ensure that the arc-shaped rack 221 has a certain sliding path in the arc-shaped guide groove 121 and ensure a stable and smooth sliding process.

[0051] like Figure 6-9 As shown, the embodiment of the present invention provides a driving structure for the above-mentioned connection structure. The driving form here can be mechanical drive or electric drive, whichever is the better, depending on the realization of the driving connection structure. For example, electric drive is preferably as follows:

[0052] The seat cushion frame 12 is also provided with a motor 144 and two driving gears 141; the bidirectional output ends of the motor 144 are respectively connected to the two driving gears 141 through a transmission rod 142; a rotating end seat 145 is provided at the end of the transmission rod 142; the driving gear 141 and the rotating end seat 145 are arranged in the driving gear groove, and the driving gear 141 is meshed with the arc-shaped rack 221.

[0053] The above-mentioned motor 144 is fixed on the seat cushion frame. The left and right ends of the motor 144 drive the driving gear 141 through the transmission rod 142. The driving gear 141 drives the arc-shaped rack 221 to slide in the arc-shaped guide groove 121. No human control is required to adjust the spatial angle of the seat back assembly 2 relative to the seat cushion assembly 1. The seat back can be locked quickly and reliably to meet the requirements of seat collision regulations and occupant driving safety.

[0054] Further, such as Figure 5 As shown, the embodiment of the present invention provides a control structure of the above-mentioned drive structure, which is preferably as follows:

[0055] The motor 144 is controlled and connected by the central controller 143 .

[0056] Furthermore, when the user needs to increase the seat back angle, the user can slightly increase the pressure on the seat cushion body 21 by moving the back. When the user needs to decrease the seat back angle, the user can slightly reduce the pressure on the seat cushion body 21 by moving the back, and keep this pressure for a short time. During the change of this pressure, the pressure value and pressure angle of the human body's buttocks on the seat cushion body 11 will also change accordingly. In order to sense the above changes, such as Figure 10-11 As shown, the embodiment of the present invention provides a body pressure sensing element; preferably as follows:

[0057] The seat cushion pressure sensing element 13 is disposed on the seat cushion frame 12;

[0058] The seat back pressure sensing element 23 is disposed on the seat back frame 22;

[0059] The seat cushion pressure sensing element 13 and the seat back pressure sensing element 23 are both controlled and connected by the central controller 143 .

[0060] The above-mentioned seat cushion pressure sensing element 13 and seat back pressure sensing element 23 can sense the pressure value and pressure angle changes of the human body's buttocks and back on the seat cushion body 11 and the seat back cushion body 21 in real time, and when the pre-calibrated pressure value and pressure angle are reached, the rotation stop signal is promptly transmitted to the motor 144 through the central controller 143. The motor 144 receives the signal and stops rotating. Thereafter, the arc-shaped guide groove 121, the arc-shaped rack 221 and the driving gear 141 are again meshed to form a relatively nested and stable spatial position relationship, so that the seat back can be reliably locked. The seat cushion pressure sensing element 13 and the seat back pressure sensing element 23 detect the pressure value changes of the human back and the backrest in real time during the actual lying and leaning back use process, providing safety guarantee.

[0061] Of course, in order to save costs and simplify the use process, a control key / button can also be directly set on the seat assembly. The control key / button is electrically connected to the motor 144. The seat back angle adjustment signal is directly transmitted to the motor 144 through the control key / button, and the motor 144 performs corresponding movement.

[0062] like Figure 3 As shown, in order to provide support force for the seat back frame 22, a rack connection reinforcement 222 and a seat back reinforcement 223 are also provided on the seat back frame 22; the seat back pressure sensing element 23 is provided on the seat back reinforcement 223 as the largest sensing area of ​​the human back.

[0063] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0064] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. Vehicle seat assembly, It is characterized in that It comprises a seat cushion assembly (1) and a seat back assembly (2); The seat back assembly (2) is connected to the seat cushion assembly (1), and is dynamically moved in space relative to the seat cushion assembly (1) via a connection structure between the two.

2. The vehicle seat assembly according to claim 1, It is characterized in that The seat cushion assembly (1) comprises a seat cushion body (11) and a seat cushion frame (12); The seat cushion body (11) and the seat cushion frame (12) are connected.

3. The vehicle seat assembly as claimed in claim 2, It is characterized in that The seat back assembly (2) comprises a seat cushion body (21) and a seat back frame (22); The seat cushion body (21) and the seat back frame (22) are connected.

4. The vehicle seat assembly as claimed in claim 3, It is characterized in that Two opposite arc-shaped guide grooves (121) are arranged on the outside of the seat cushion frame (12), matching arc-shaped sliding guide ribs (122) are arranged in the arc-shaped guide grooves (121), and a driving gear groove is arranged on the arc-shaped guide grooves (121).

5. The vehicle seat assembly as claimed in claim 4, It is characterized in that Two opposite arc-shaped racks (221) matched with the arc-shaped guide grooves (121) are arranged on the outer side of the seat back frame (22); and an arc-shaped sliding guide groove (2211) matched with the arc-shaped sliding guide rib (122) is arranged on the arc-shaped rack (221); The arc-shaped rack (221) slides in the arc-shaped guide groove (121), and the arc-shaped sliding guide groove (2211) slides along the arc-shaped sliding guide rib (122).

6. The vehicle seat assembly as claimed in claim 5, It is characterized in that The seat cushion frame (12) is also provided with a motor (144) and two driving gears (141); the bidirectional output end of the motor (144) is respectively connected to the two driving gears (141) through a transmission rod (142); a rotating end seat (145) is provided at the end of the transmission rod (142); The driving gear (141) and the rotating end seat (145) are arranged in the driving gear groove, and the driving gear (141) is meshed with the arc-shaped rack (221).

7. The vehicle seat assembly as claimed in claim 6, It is characterized in that It also includes a central controller (143); the motor (144) is controlled and connected by the central controller (143).

8. The vehicle seat assembly as claimed in claim 7, It is characterized in that It also includes a seat cushion pressure sensing element (13) and a seat back pressure sensing element (23); The seat cushion pressure sensing element (13) is arranged on the seat cushion frame (12); The seat back pressure sensing element (23) is arranged on the seat back frame (22); The seat cushion pressure sensing element (13) and the seat back pressure sensing element (23) are both controlled and connected by a central controller (143).

9. The vehicle seat assembly as claimed in claim 8, It is characterized in that The seat back frame (22) is also provided with a rack connection reinforcement member (222) and a seat back reinforcement member (223); The seat back pressure sensing element (23) is arranged on the seat back reinforcement (223).

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