An electric vehicle seat frame

Abstract

The present invention provides an electric vehicle seat frame, belonging to the technical field of seat frames, which includes a seat cushion base frame rotatably installed with a backrest frame, a track, and an auxiliary adjustment component that forms a tensile force between the backrest frame and the track to assist the backrest frame in smoothly adjusting the angle. In this electric vehicle seat frame, the auxiliary adjustment component forms an elastic tensile force between the backrest frame and the track, assisting the backrest frame in smoothly adjusting the angle and transferring the load force from the backrest to the track. Overall, it effectively improves the smoothness of the backrest angle adjustment process, the stability of the overall seat structure, and the shock resistance of the seat, correspondingly improving the comfort and experience of passengers and extending the service life of the mechanical structure. At the same time, it has the advantages of simple structure and good stability.

Description

Technical Field

[0001] The present invention relates to the technical field of seat skeletons, and particularly to an electric vehicle seat skeleton. Background Art

[0002] An automobile seat skeleton is a core component of an automobile seat. It provides necessary support for the passenger's body, ensures stability and comfort during driving, and allows the passenger to adjust the position of the seat (such as front-back, height, tilt angle, etc.) according to personal needs to achieve the best sitting posture.

[0003] Currently, the performance of the seat skeleton in terms of backrest angle adjustment still needs to be further improved. Especially in the environment where the backrest height remains unchanged and only the seat cushion height is adjusted, a relatively obvious height change can be provided in this environment and the seat position state can be adjusted more flexibly and precisely to fully meet the needs of passengers. However, since the backrest angle of the seat skeleton is mainly adjusted by a recliner, the load during the adjustment process can usually only be concentrated on the pivot and the recliner, and the overall stability of the seat is low. When encountering a large impact force, the pivot and the recliner may be damaged. On the one hand, it will reduce the stability of the seat adjustment process and even pose a safety hazard, correspondingly reducing the comfort and experience of passengers. On the other hand, it will shorten the service life of the mechanical structure. Summary of the Invention

[0004] The present invention provides an electric vehicle seat skeleton to solve the problems in the related art that during the adjustment of the automobile seat backrest angle, the load is mainly concentrated on the pivot and the recliner, the pivot and the recliner are easily damaged when encountering a large impact force, the overall stability of the seat is low, correspondingly reducing the comfort and experience of passengers, and shortening the service life of the mechanical mechanism.

[0005] The present invention provides an electric vehicle seat frame, which includes a seat cushion base frame rotatably installed with a backrest frame; a track, on which the seat cushion base frame is slidably installed; an auxiliary adjustment assembly that forms a tensile force between the backrest frame and the track to assist the backrest frame in smoothly adjusting the angle. The auxiliary adjustment assembly includes a connection seat fixedly connected to the backrest frame and a mounting seat hinged with a tension rod. One end of the tension rod away from the mounting seat is hinged with a sliding member, which is slidably installed on the connection seat. A control assembly one for controlling the sliding of the sliding member is installed on the connection seat. During the process of adjusting the angle of the backrest frame, the control assembly one controls the sliding of the sliding member to keep the tension rod in a tension state all the time. The mounting seat includes a base slidably installed on the track and sliding synchronously with the seat cushion base frame. A limit head is slidably connected to the base, and the sliding direction of the limit head is perpendicular to the sliding direction of the base. A limit eaves is fixedly installed on the track, and the limit head is located below the limit eaves. During the sliding process of the base, the limit eaves and the limit head are not in a tightly abutted and fixed state. After the base stops sliding, the limit head tightly abuts against the limit eaves to firmly connect the base and the track together. The tension rod acts on the track through the base with the tensile force.

[0006] In a possible implementation manner, the connection seats are symmetrically distributed and in a strip structure. Correspondingly, the tension rods and the mounting seats are both symmetrically distributed, and a control assembly two is arranged between the symmetric mounting seats. The control assembly two includes an intermediate seat fixedly connected between the bases, and a screw rod and a rack are arranged on the intermediate seat. The screw rod is rotatably installed on the intermediate seat, corresponds to the limit head one by one and is threadedly connected to the limit head. A stabilizing frame is fixedly connected to the limit head and is threadedly connected to the screw rod. A gear is fixedly connected to the screw rod, and the rack is slidably installed on the intermediate seat and meshes with the gear. Among them, the stabilizing frame is in a triangular structure and a reinforcing rod is fixedly connected to the stabilizing frame, and the reinforcing rod is slidably connected to the intermediate seat.

[0007] In a possible implementation manner, the control assembly one includes a telescopic member and a bidirectional limiting connecting member. The sliding member is slidably connected to the bidirectional limiting connecting member. The bidirectional limiting connecting member limits the sliding range of the sliding member, and an elastic member is connected between the bidirectional limiting connecting member and the sliding member. Among them, the elastic members are symmetrically distributed and are respectively located on both sides of the sliding member.

[0008] In a possible implementation manner, an elastic telescopic rod is hinged between the connection seat and the tension rod. During the process of adjusting the angle of the backrest frame, as the angle between the backrest frame and the seat cushion base frame increases, the elastic compression force of the elastic telescopic rod gradually increases, and the elastic compression force is used to compensate for the influence of the gravity action on the angle adjustment of the backrest frame during the process of the angle between the backrest frame and the seat cushion base frame decreasing, and assist the backrest frame to smoothly adjust the angle.

[0009] In a possible implementation manner, inclined surfaces are provided on both the limiting eaves and the base body, and the inclined surfaces on both of them are in a horn shape. The limiting head is in a strip structure, and when the base body is firmly connected to the track, the limiting head is closely attached to the inclined surfaces on both the limiting eaves and the base body at the same time.

[0010] In a possible implementation manner, the bidirectional limiting connector includes a limiting frame and a connecting column. The connecting column is fixedly installed in the limiting frame, and the connecting column penetrates through the sliding member and is slidably connected to the sliding member. Part of the sliding member is located in the limiting frame, and an elastic member is sleeved on the connecting column and is located between the limiting frame and the sliding member.

[0011] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects: 1. According to an electric vehicle seat frame provided by the embodiments of the present invention, the auxiliary adjustment assembly forms an elastic tensile force between the backrest frame and the track, assists the backrest frame to smoothly adjust the angle, and transfers the load force from the backrest to the track. Overall, the smoothness of the backrest angle adjustment process, the stability of the overall seat structure, and the impact resistance of the seat are effectively improved. Correspondingly, the comfort and experience of passengers are improved, and the service life of the mechanical structure is extended. At the same time, it has the advantages of simple structure and good stability.

[0012] 2. According to an electric vehicle seat frame provided by the embodiments of the present invention, the limiting frame limits the sliding member, and the elastic members are respectively arranged on both sides of the sliding member, forming a connection state with relatively high elastic strength as a whole. Correspondingly, it is beneficial to improve the strength and stability of the elastic tensile force exerted by the tension rod on the backrest frame, and further beneficial to improve the stability of the overall structure and the smoothness of the backrest angle adjustment process. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of a backrest frame, a seat cushion base frame, and a connecting seat of an electric vehicle seat frame provided by an embodiment of the present invention.

[0014] Figure 2 is Figure 1 an enlarged view of part A in

[0015] Figure 3 is a schematic structural diagram of a tension rod and a sliding member of an electric vehicle seat frame provided by an embodiment of the present invention.

[0016] Figure 4 is a schematic structural diagram of a first control component of an electric vehicle seat frame provided by an embodiment of the present invention.

[0017] Figure 5 is Figure 4 an enlarged view of part B in

[0018] Figure 6It is a schematic structural diagram of the control component two of an electric vehicle seat frame provided by an embodiment of the present invention.

[0019] Figure 7 It is a schematic structural diagram of a mounting seat of an electric vehicle seat frame provided by an embodiment of the present invention.

[0020] In the figure: 1, backrest frame 1; 2, seat cushion base frame; 3, track; 4, auxiliary adjustment component; 41, connecting seat; 42, tension rod; 43, mounting seat; 431, base body; 432, limiting head; 433, limiting eaves; 44, sliding member; 45, control component one; 451, telescopic member; 452, bidirectional limiting connecting member; 4521, limiting frame; 4522, connecting column; 453, elastic member; 46, control component two; 461, intermediate seat; 462, screw rod; 463, rack; 464, stabilizing frame; 465, gear; 466, reinforcing rod; 467, control rod; 47, elastic telescopic rod. Specific embodiments

[0021] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0022] Please refer to Figure 1 , an electric vehicle seat frame, including a track 3 and a seat cushion base frame 2 rotatably installed with a backrest frame 1. The rotation of the backrest frame 1 is controlled by an existing angle adjuster. The tracks 3 are symmetrically distributed left and right and fixedly installed on the vehicle body. The seat cushion base frame 2 is slidably installed front and back on the track 3, and the front and back sliding adjustment process of the seat cushion base frame 2 adopts the existing technology. The seat cushion is installed on the seat cushion base frame 2, and the lifting adjustment process of the seat cushion also adopts the existing technology. An auxiliary adjustment component 4 is provided between the backrest frame 1 and the track 3. The auxiliary adjustment component 4 forms a tensile force between the backrest frame 1 and the track 3, assisting the backrest frame 1 to smoothly adjust the angle and transferring the load force from the backrest to the track 3, improving the smoothness of the backrest angle adjustment process, the stability of the overall seat structure, and the impact resistance, correspondingly improving the comfort and experience of passengers and extending the service life of the mechanical structure.

[0023] Refer to Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6, the auxiliary adjustment assembly 4 includes a connecting seat 41 fixedly connected to the backrest frame 1 and a mounting seat 43 hinged with a tension rod 42. The mounting seat 43 is installed on the track 3. One end of the tension rod 42 away from the mounting seat 43 is hinged with a sliding member 44. The sliding member 44 is slidably installed on the connecting seat 41. A first control assembly 45 for controlling the sliding of the sliding member 44 is installed on the connecting seat 41. During the process of adjusting the angle of the backrest frame 1, the first control assembly 45 controls the sliding of the sliding member 44 to keep the tension rod 42 in a tension state all the time. The first control assembly 45 includes a telescopic member 451 and a bidirectional limiting connecting member 452. The telescopic member 451 is installed in the connecting seat 41. The bidirectional limiting connecting member 452 includes a limiting frame 4521 and a connecting column 4522. The connecting column 4522 is fixedly installed in the limiting frame 4521 and the connecting column 4522 penetrates through the sliding member 44 and is slidably connected with the sliding member 44. Part of the sliding member 44 is located in the limiting frame 4521. An elastic member 453 is sleeved on the connecting column 4522. The elastic member 453 is located on both sides of the sliding member 44 and between the sliding member 44 and the limiting frame 4521. During the process of adjusting the angle of the backrest frame 1, as the angle between the backrest frame 1 and the seat cushion base frame 2 increases, the telescopic member 451 contracts, causing the sliding member 44 to slide towards the seat cushion base frame 2 and the sliding member 44 to slide and be limited in the limiting frame 4521 and compress the elastic member 453 on the side close to the seat cushion base frame 2, making the tension rod 42 in an elastic tension state, providing an elastic pulling force to the backrest frame 1 and transmitting the reaction force of the backrest frame 1 to the track 3 through the mounting seat 43. Conversely, the telescopic member 451 extends, causing the sliding member 44 to slide away from the seat cushion base frame 2 and also making the tension rod 42 in an elastic tension state, effectively improving the smoothness of the process of adjusting the angle of the backrest frame 1 and the stability of the overall seat structure. Among them, the telescopic member 451 is an electric telescopic rod, and the sliding member 44 is fixedly connected to the telescopic rod body of the electric telescopic rod.

[0024] Refer to Figure 1 , Figure 6 and Figure 7 , the mounting seat 43 includes a base body 431 slidably installed on the track 3 in the front-back direction and sliding synchronously with the seat cushion base frame 2. The base body 431 is fixedly connected to the seat cushion base frame 2, and a limiting head 432 is slidably connected to the base body 431 in the left-right direction. A limiting eaves 433 is fixedly installed on the track 3. The limiting head 432 is located below the limiting eaves 433. During the process of the seat cushion base frame 2 sliding and adjusting its position in the front-back direction, the base body 431 slides synchronously in the front-back direction. At this time, the limiting eaves 433 does not abut against the limiting head 432. After the seat cushion base frame 2 is adjusted to the required position and fixed, the limiting head 432 slides and tightly abuts against the limiting eaves 433 to firmly connect the base body 431 and the track 3 together. The tension rod 42 is hinged to the base body 431 and the base body 431 applies the acting force in the tension state to the track 3, improving the stability of the overall seat structure.

[0025] Refer to Figure 1 、 Figure 6 and Figure 7 , the connecting seats 41 are symmetrically distributed on the left and right and are in a strip structure. Correspondingly, the tension rods 42 and the mounting seats 43 are both symmetrically distributed on the left and right. A second control assembly 46 is arranged between the symmetrically distributed mounting seats 43 on the left and right. The second control assembly 46 includes an intermediate seat 461. The intermediate seat 461 is fixedly connected between the base bodies 431, and screws 462 and racks 463 are symmetrically arranged on the left and right on the intermediate seat 461. The screws 462 are rotatably mounted on the intermediate seat 461 and correspond one by one to the limit heads 432, and the screws 462 are threadedly connected to the corresponding limit heads 432. A stabilizing frame 464 is fixedly connected to the limit head 432. The stabilizing frame 464 is threadedly connected to the screw 462, and a reinforcing rod 466 is fixedly connected to the stabilizing frame 464. The reinforcing rod 466 is slidably connected to the intermediate seat 461. A gear 465 is fixedly connected to the screw 462. The rack 463 is slidably mounted on the intermediate seat 461 in the front and rear directions and meshes with the gear 465. As shown in Figure 6 , the number of the racks 463 is two and they respectively mesh with the gears 465 on the left and right screws 462. At the same time, the rack 463 is fixedly connected to the middle control rod 467. Pulling the control rod 467 can control the front and rear sliding of the rack 463 and drive the gear 465 to rotate. The screw 462 rotates accordingly to control the left and right sliding of the stabilizing frame 464 and the limit head 432, realizing the tightening and loosening work with the corresponding limit eaves 433, and having the function of self-locking. The whole control process is simple and convenient and has high stability.

[0026] Refer to Figure 6 and Figure 7 , both the limit eaves 433 and the base body 431 are provided with inclined surfaces, and the inclined surfaces on both of them are in a trumpet shape. The limit head 432 is in a strip structure. In the state where the base body 431 is firmly connected to the track 3, the limit head 432 is closely attached to the inclined surfaces of both the limit eaves 433 and the base body 431 at the same time, improving the stability of the fixed connection between the base body 431 and the track 3.

[0027] Refer to Figure 2 、 Figure 3 and Figure 4 , an elastic telescopic rod 47 is hinged between the connecting seat 41 and the tension rod 42. During the process of adjusting the angle of the backrest frame 1, as the angle between the backrest frame 1 and the seat cushion base frame 2 increases, the elastic telescopic rod 47 contracts, and the corresponding elastic compression force gradually increases. On the one hand, a supporting connection force is formed between the connecting seat 41 and the tension rod 42, improving the stability of the overall structure. On the other hand, during the subsequent adjustment process of reducing the angle between the backrest frame 1 and the seat cushion base frame 2, the influence of the gravity action on the angle adjustment of the backrest frame 1 is compensated by releasing the elastic compression force, assisting the backrest frame 1 to smoothly adjust the angle.

[0028] In an embodiment of the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0029] In the description of the present invention, it should also be noted that, unless otherwise clearly specified or limited, the terms "arranged", "connected", "installed" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, an integral connection or a sliding connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An electric vehicle seat frame, characterized in that: include: Rotating a seat cushion base frame on which a backrest frame is mounted; A track, on which the cushion base frame is slidably mounted; An auxiliary adjustment component that generates a tension force between the backrest frame and the track to assist the backrest frame in smoothly adjusting the angle; The auxiliary adjustment component includes a connecting seat fixedly connected to the backrest frame and a mounting seat hinged with a tension rod, one end of the tension rod away from the mounting seat is hinged with a sliding member, the sliding member is slidably mounted on the connecting seat, and a control component 1 for controlling the sliding of the sliding member is installed on the connecting seat. During the adjustment of the angle of the backrest frame, the control component 1 controls the sliding of the sliding member so that the tension rod is always in a tensioned state; The mounting seat comprises a base body which is slidably mounted on the track and slides synchronously with the cushion base frame, a limiting head is slidably connected to the base body, the sliding direction of the limiting head is perpendicular to the sliding direction of the base body, a limiting eave is fixedly mounted on the track, and the limiting head is located below the limiting eave; The control component 1 includes a telescopic member and a bidirectional limit connecting member, the sliding member is slidably connected to the bidirectional limit connecting member, the bidirectional limit connecting member limits the sliding range of the sliding member, and an elastic member is connected between the bidirectional limit connecting member and the sliding member; The bidirectional limit connecting member comprises a limit frame and a connecting column, wherein the connecting column is fixedly mounted in the limit frame, and the connecting column passes through the sliding member and is slidably connected to the sliding member, the sliding member is partially located in the limit frame, and the elastic member is sleeved on the connecting column and is located between the limit frame and the sliding member; During the sliding process of the base, the limit eaves and the limit head are in a non-tight and fixed state. After the base stops sliding, the limit head and the limit eaves are tightly pressed together to firmly connect the base and the track. The tension rod applies force to the track through the base.

2. The electric vehicle seat frame according to claim 1, characterized in that: The connecting seat is symmetrically distributed and has a strip-shaped structure, the corresponding tensioning rods and mounting seats are symmetrically distributed, and a control component 2 is arranged between the symmetrical mounting seats, and the control component 2 includes an intermediate seat, the intermediate seat is fixedly connected between the bases and a screw and a rack are arranged on the intermediate seat, the screw is rotatably installed on the intermediate seat and corresponds to the limit head one by one and is threadedly connected to the limit head, a stabilizing frame is fixedly connected to the limit head, the stabilizing frame is threadedly connected to the screw, a gear is fixedly connected to the screw, and the rack is slidably installed on the intermediate seat and meshes with the gear.

3. The electric vehicle seat frame according to claim 1, characterized in that: An elastic telescopic rod is hinged between the connecting seat and the tensioning rod. During the process of adjusting the angle of the backrest frame, as the angle between the backrest frame and the seat cushion base increases, the elastic compression force of the elastic telescopic rod gradually increases, and the elastic compression force is used to compensate for the influence of gravity on the angle adjustment of the backrest frame during the process of reducing the angle between the backrest frame and the seat cushion base, thereby assisting the backrest frame to smoothly adjust the angle.

4. The electric vehicle seat frame according to claim 2, characterized in that: The limiting eaves and the base are both provided with inclined surfaces, and the inclined surfaces on both are trumpet-shaped. The limiting head is a strip structure and when the base and the track are firmly connected together, the limiting head is tightly fitted with the limiting eaves and the inclined surfaces on the base.

5. The electric vehicle seat frame according to claim 2, characterized in that: The stabilizing frame is a triangular structure and a reinforcing rod is fixedly connected to the stabilizing frame, and the reinforcing rod is slidably connected to the middle seat.

6. The electric vehicle seat frame according to claim 1, characterized in that: The elastic members are symmetrically distributed and respectively located on two sides of the sliding member.

Images