Electric automobile seat framework

Abstract

The invention provides an electric automobile seat framework, which belongs to the technical field of seat frameworks, and comprises a cushion base frame rotatably provided with a backrest framework, a track and an auxiliary adjusting assembly for forming a tensioning force between the backrest framework and the track to assist the backrest framework in stably adjusting the angle. According to the electric automobile seat framework, the auxiliary adjusting assembly forms elastic tensioning force between the backrest framework and the rail, and the auxiliary adjusting assembly assists the backrest framework in stably adjusting the angle and transferring the load force to the rail from the backrest; the stability in the backrest angle adjusting process, the stability of the overall structure of the seat and the impact resistance of the seat are integrally and effectively improved, the comfort level and experience of passengers are correspondingly improved, the service life of a mechanical structure is prolonged, and meanwhile the advantages of being simple in structure and good in stability are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of seat frames, in particular to a seat frame for an electric vehicle. Background Art

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

[0003] At present, the performance of the seat frame in adjusting the backrest angle needs to be further improved, especially in an environment where the backrest height position remains unchanged and only the seat cushion height is adjusted. In this environment, a more obvious height change can be provided and the seat position can be adjusted more flexibly and accurately to fully meet the needs of passengers. However, since the seat frame mainly relies on the recliner to adjust the backrest angle, the load during the adjustment process can usually only be concentrated on the pivot and the recliner. The overall stability of the seat is low, and the pivot and the recliner may be damaged when encountering a large impact force. On the one hand, the stability of the seat adjustment process will be reduced and even a safety hazard will be created, which will correspondingly reduce the comfort and experience of the passengers. On the other hand, the service life of the mechanical structure will be shortened. Summary of the invention

[0004] The present invention provides an electric vehicle seat frame to solve the problem in the related art that during the process of adjusting the angle of the car seat backrest, the load is mainly concentrated on the pivot and the angle adjuster, and the pivot and the angle adjuster are easily damaged when encountering a large impact force, and the overall stability of the seat is affected, which will correspondingly reduce the comfort and experience of the passengers and shorten the service life of the mechanical mechanism.

[0005] The present invention provides an electric vehicle seat frame, which comprises: a cushion base frame on which a backrest frame is rotatably mounted; a track, on which the cushion base frame is slidably mounted; an auxiliary adjustment component that forms a tensioning force between the backrest frame and the track to assist the backrest frame in smoothly adjusting its angle, the auxiliary adjustment component comprising a connecting seat fixedly connected to the backrest frame and a mounting seat hinged with a tensioning rod, one end of the tensioning 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 for controlling the sliding of the sliding member is installed on the connecting seat, so that the backrest frame angle can be adjusted. During the process, the control component controls the sliding part to slide so that the tensioning rod is always in a tensioning state. The mounting seat includes a base slidably mounted on the track and sliding synchronously with the 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 in a non-tight and fixed state. After the base stops sliding, the limit head and the limit eaves are tightly pressed against each other to make the base and the track firmly connected together, and the tensioning rod applies the tensioning force to the track through the base.

[0006] In one possible implementation, 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, which is fixedly connected between the bases and is provided with a screw and a rack, the screw is rotatably installed on the intermediate seat and corresponds one-to-one with the limit head 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, wherein the stabilizing frame is a triangular structure and a reinforcement rod is fixedly connected to the stabilizing frame, and the reinforcement rod is slidably connected to the intermediate seat.

[0007] In one possible implementation, the control component includes a telescopic member and a two-way limit connecting member, the sliding member is slidably connected to the two-way limit connecting member, the two-way limit connecting member limits the sliding range of the sliding member, and an elastic member is connected between the two-way limit connecting member and the sliding member, wherein the elastic members are symmetrically distributed and are respectively located on both sides of the sliding member.

[0008] In one possible implementation, an elastic telescopic rod is hinged between the connecting 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 increases, the elastic compression force of the elastic telescopic rod gradually increases. In the process of reducing the angle between the backrest frame and the seat cushion base, the elastic compression force is used to compensate for the influence of gravity on the angle adjustment of the backrest frame, thereby assisting the backrest frame to smoothly adjust the angle.

[0009] In one possible implementation, 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-shaped 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 at the same time.

[0010] In one possible implementation, the bidirectional limit connecting member includes a limit frame and a connecting column, the connecting column is fixedly installed 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.

[0011] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. According to an electric vehicle seat frame provided by an embodiment of the present invention, the auxiliary adjustment component forms an elastic tension force between the backrest frame and the track, which assists the backrest frame to smoothly adjust the angle and transfer the load force from the backrest to the track, which effectively improves the smoothness of the backrest angle adjustment process, the stability of the overall structure of the seat and the impact resistance of the seat, and correspondingly improves the comfort and experience of the passengers and extends the service life of the mechanical structure. At the same time, it has the advantages of simple structure and good stability.

[0012] 2. According to an embodiment of the present invention, an electric vehicle seat frame is provided, in which a limit frame limits the sliding member, and elastic members are respectively arranged on both sides of the sliding member, forming an overall connection state with high elastic strength, which is correspondingly beneficial to improving the strength and stability of the elastic tensioning force of the tensioning rod on the backrest frame, and further beneficial to improving the stability of the overall structure and the smoothness of the backrest angle adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 The present invention 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 It is a structural schematic diagram of a control component 1 of an electric vehicle seat frame provided by an embodiment of the present invention.

[0017] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0018] Figure 6It is a structural schematic diagram of a control component 2 of an electric vehicle seat frame provided by an embodiment of the present invention.

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

[0020] In the figure: 1. backrest frame 1; 2. cushion base; 3. track; 4. auxiliary adjustment component; 41. connecting seat; 42. tension rod; 43. mounting seat; 431. base; 432. limit head; 433. limit eaves; 44. sliding member; 45. control component one; 451. telescopic member; 452. two-way limit connector; 4521. limit frame; 4522. connecting column; 453. elastic member; 46. control component two; 461. middle seat; 462. screw; 463. rack; 464. stabilizing frame; 465. gear; 466. reinforcement rod; 467. control rod; 47. elastic telescopic rod. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of 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 violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0022] See also Figure 1 , an electric vehicle seat frame, comprising a track 3 and a cushion base frame 2 on which a backrest frame 1 is rotatably mounted, the rotation of the backrest frame 1 is controlled by an existing angle adjuster, the track 3 is symmetrically distributed and fixedly mounted on the vehicle body, the cushion base frame 2 is slidably mounted on the track 3 front and back, and the front and rear sliding adjustment process of the cushion base frame 2 adopts the existing technology, the cushion is mounted on the cushion base frame 2, and the lifting and lowering adjustment process of the cushion also adopts the existing technology, an auxiliary adjustment component 4 is arranged between the backrest frame 1 and the track 3, the auxiliary adjustment component 4 forms a tensioning force between the backrest frame 1 and the track 3, assists the backrest frame 1 to smoothly adjust the angle and transfers the load force from the backrest to the track 3, improves the smoothness of the backrest angle adjustment process and the stability and impact resistance of the overall structure of the seat, and correspondingly improves the comfort and experience of the passengers and extends the service life of the mechanical structure.

[0023] See also Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6The auxiliary adjustment component 4 includes a connecting seat 41 fixedly connected to the backrest frame 1 and a mounting seat 43 hingedly connected to a tension rod 42. The mounting seat 43 is installed on the track 3. The end of the tension rod 42 away from the mounting seat 43 is hingedly connected to a sliding member 44. The sliding member 44 is slidably mounted on the connecting seat 41. A control component 45 for controlling the sliding of the sliding member 44 is installed on the connecting seat 41. During the angle adjustment process of the backrest frame 1, the control component 45 controls the sliding member 44 to slide so that the tension rod 42 is always in a tensioned state. The control component 45 includes a telescopic member 451 and a two-way limiting connecting member 452. The telescopic member 451 is installed in the connecting seat 41. The two-way 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 passes through the sliding member 44 and is slidably connected to the sliding member 44. The sliding member 44 is partially located in the limiting frame 4521. An elastic sleeve is provided on the connecting column 4522. Component 453, elastic component 453 is respectively located on both sides of sliding component 44 and between sliding component 44 and limiting frame 4521. During the process of adjusting the angle of backrest frame 1, as the angle between backrest frame 1 and cushion base frame 2 increases, telescopic component 451 contracts, causing sliding component 44 to slide toward the cushion base frame 2 and sliding component 44 slides within the limiting frame 4521 and compresses the elastic component 453 on the side close to the cushion base frame 2, so that the tensioning rod 42 is in an elastic tensioning state, providing elastic tension 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, telescopic component 451 extends out, causing sliding component 44 to slide in the direction away from the cushion base frame 2, and also causing the tensioning rod 42 to be in an elastic tensioning state, thereby effectively improving the smoothness of the angle adjustment process of backrest frame 1 and the stability of the overall seat structure. Among them, telescopic component 451 is an electric telescopic rod, and sliding component 44 is fixedly connected to the telescopic rod body of the electric telescopic rod.

[0024] See also Figure 1 , Figure 6 and Figure 7 The mounting seat 43 includes a base 431 which is slidably mounted on the track 3 and slides synchronously with the seat cushion base 2. The base 431 is fixedly connected to the seat cushion base 2, and a limiting head 432 is slidably connected to the base 431 left and right. A limiting eaves 433 is fixedly installed on the track 3, and the limiting head 432 is located below the limiting eaves 433. During the process of the seat cushion base 2 sliding forward and backward to adjust its position, the base 431 slides forward and backward synchronously. At this time, the limiting eaves 433 are not tightly pressed against the limiting head 432. After the seat cushion base 2 is adjusted to the desired position and fixed, the limiting head 432 slides and presses tightly against the limiting eaves 433 to firmly connect the base 431 and the track 3. The tensioning rod 42 is hingedly connected to the base 431 and the base 431 applies the force in the tensioned state to the track 3, thereby improving the stability of the overall seat structure.

[0025] See also Figure 1 , Figure 6 and Figure 7 The connecting seat 41 is symmetrically distributed on the left and right and has a strip-shaped structure. The corresponding tensioning rods 42 and the mounting seats 43 are symmetrically distributed on the left and right. A control component 2 46 is arranged between the left and right symmetrical mounting seats 43. The control component 2 46 includes an intermediate seat 461. The intermediate seat 461 is fixedly connected between the bases 431 and the intermediate seat 461 is symmetrically provided with screws 462 and racks 463. The screws 462 are rotatably installed on the intermediate seat 461 and correspond one to one to the limit heads 432. The screws 462 are threadedly connected with the corresponding limit heads 432. A stabilizing frame 464 is fixedly connected to the limit heads 432. The stabilizing frame 464 is threadedly connected to the screws 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 installed on the intermediate seat 461 and meshes with the gear 465. Figure 6 As shown, there are two racks 463, which are respectively meshed with the gears 465 on the left and right screws 462. At the same time, the racks 463 are fixedly connected to the control rod 467 in the middle. Pulling the control rod 467 can control the rack 463 to slide back and forth and drive the gear 465 to rotate. The screw 462 rotates accordingly to control the stabilizing frame 464 and the limit head 432 to slide left and right, thereby realizing the tightening and loosening work with the corresponding limit eaves 433, and has a self-locking function. The entire control process is simple, convenient and highly stable.

[0026] See also Figure 6 and Figure 7 The limiting eaves 433 and the base 431 are both provided with inclined surfaces, and the inclined surfaces on the two are trumpet-shaped. The limiting head 432 is a strip structure. When the base 431 and the track 3 are firmly connected together, the limiting head 432 is tightly fitted with the limiting eaves 433 and the inclined surfaces on the base 431 at the same time, thereby improving the stability of the fixed connection between the base 431 and the track 3.

[0027] See also 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 connecting force is formed between the connecting seat 41 and the tension rod 42 to improve the stability of the overall structure. On the other hand, in the subsequent adjustment process of reducing the angle between the backrest frame 1 and the seat cushion base frame 2, the elastic compression force is released to compensate for the influence of gravity on the angle adjustment of the backrest frame 1, thereby assisting the backrest frame 1 to smoothly adjust the angle.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric vehicle seat frame, characterized in that: include: Rotating a seat cushion base frame (2) on which a backrest frame (1) is mounted; A track (3), on which the cushion base frame (2) is slidably mounted; An auxiliary adjustment component (4) is formed between the backrest frame (1) and the track (3) to assist the backrest frame (1) in smoothly adjusting the angle; The auxiliary adjustment component (4) comprises a connecting seat (41) fixedly connected to the backrest frame (1) and a mounting seat (43) hinged with a tension rod (42); 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 mounted on the connecting seat (41); a control component (45) for controlling the sliding of the sliding member (44) is mounted on the connecting seat (41); during the process of adjusting the angle of the backrest frame (1), the control component (45) controls the sliding of the sliding member (44) so ​​that the tension rod (42) is always in a tensioned state; The mounting seat (43) comprises a base (431) slidably mounted on the track (3) and sliding synchronously with the cushion base frame (2); a limiting head (432) is slidably connected to the base (431); the sliding direction of the limiting head (432) is perpendicular to the sliding direction of the base (431); a limiting eave (433) is fixedly mounted on the track (3); and the limiting head (432) is located below the limiting eave (433); During the sliding process of the base (431), the limiting eaves (433) and the limiting head (432) are in a non-tightly fixed state. After the base (431) stops sliding, the limiting head (432) and the limiting eaves (433) are tightly pressed together to firmly connect the base (431) and the track (3). The tension rod (42) exerts a force on the track (3) through the base (431).

2. The electric vehicle seat frame according to claim 1, characterized in that: The connecting seat (41) is symmetrically distributed and has a strip-shaped structure. The corresponding tension rods (42) and mounting seats (43) are symmetrically distributed, and a control component 2 (46) is arranged between the symmetrical mounting seats (43). The control component 2 (46) includes an intermediate seat (461). The intermediate seat (461) is fixedly connected between the bases (431) and a screw (462) and a rack (463) are arranged on the intermediate seat (461). The screw (462) is rotatably mounted on the intermediate seat (461) and corresponds one-to-one with the limit head (432) and is threadedly connected to the limit head (432). A stabilizing frame (464) is fixedly connected to the limit head (432), and the stabilizing frame (464) is threadedly connected to the screw (462). A gear (465) is fixedly connected to the screw (462), and the rack (463) is slidably mounted on the intermediate seat (461) and meshes with the gear (465).

3. The electric vehicle seat frame according to claim 1, characterized in that: The control component 1 (45) comprises a telescopic member (451) and a bidirectional limit connecting member (452), the sliding member (44) is slidably connected to the bidirectional limit connecting member (452), the bidirectional limit connecting member (452) limits the sliding range of the sliding member (44), and an elastic member (453) is connected between the bidirectional limit connecting member (452) and the sliding member (44).

4. The electric vehicle seat frame according to claim 1, characterized in that: 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 compression force of the elastic telescopic rod (47) gradually increases. In addition, during the process of reducing the angle between the backrest frame (1) and the seat cushion base frame (2), the elastic compression force is used to compensate for the influence of gravity on the angle adjustment of the backrest frame (1), thereby assisting the backrest frame (1) to smoothly adjust the angle.

5. The electric vehicle seat frame according to claim 2, characterized in that: The limiting eaves (433) and the base (431) are both provided with inclined surfaces, and the inclined surfaces on the two are trumpet-shaped. The limiting head (432) is a strip-shaped structure, and when the base (431) and the track (3) are firmly connected together, the limiting head (432) is tightly fitted with the limiting eaves (433) and the inclined surfaces on the base (431).

6. The electric vehicle seat frame according to claim 3, characterized in that: The bidirectional limiting connecting member (452) comprises a limiting frame (4521) and a connecting column (4522), wherein the connecting column (4522) is fixedly installed in the limiting frame (4521), and the connecting column (4522) passes through the sliding member (44) and is slidably connected to the sliding member (44), and a portion of the sliding member (44) is located in the limiting frame (4521), and the elastic member (453) is sleeved on the connecting column (4522) and is located between the limiting frame (4521) and the sliding member (44).

7. The electric vehicle seat frame according to claim 2, characterized in that: The stabilizing frame (464) is a triangular structure and a reinforcing rod (466) is fixedly connected to the stabilizing frame (464), and the reinforcing rod (466) is slidably connected to the middle seat (461).

8. An electric vehicle seat frame according to claim 3 or 6, characterized in that: The elastic members (453) are symmetrically distributed and respectively located on two sides of the sliding member (44).

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