Upper connecting plate of seat angle adjuster, seat framework assembly and vehicle

Abstract

The utility model discloses a seat angle adjuster's upper connecting plate, seat framework assembly and vehicle, seat angle adjuster's upper connecting plate includes: the upper connecting plate is suitable for being connected with backrest framework, and is suitable for being connected with the cushion framework rotation through angle adjuster, wherein, the upper connecting plate includes first connecting area and second connecting area, the first connecting area is used for being connected with backrest framework, be equipped with a plurality of mounting portions in the second connecting area, a plurality of mounting portions are used for selectively combining to be detachably connected with different specifications angle adjuster. The first connecting area of seat angle adjuster's upper connecting plate of the utility model embodiment is connected with backrest framework, is equipped with a plurality of mounting portions in the second connecting area, and a plurality of mounting portions and different specifications angle adjuster can be selectively matched and connected, can not modify the side plate mould of upper connecting plate or backrest framework to realize the switching of different angle adjuster of low cost, short period.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to an upper connecting plate of a seat adjuster, a seat frame assembly, and a vehicle. Background Technology

[0002] An angle adjuster is a device installed on a car seat to adjust the angle of the seat back. The device generally consists of a backrest connecting plate, a seat connecting plate, a core component, a handwheel or adjusting handle, and a return spring.

[0003] Most existing designs on the market use the backrest side panel or the connecting plate on the angle adjuster to install the core component of the angle adjuster. Due to the influence of the shape and structure design, it is impossible to reserve space to adapt to different angle adjuster models. Utility Model Content

[0004] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes an upper connecting plate for a seat adjuster. The first connecting area of ​​the upper connecting plate of the seat adjuster is connected to the backrest frame, and the second connecting area is provided with multiple mounting parts. The multiple mounting parts can be selectively matched and connected with adjusters of different specifications. The switching between different adjusters can be achieved at low cost and in a short cycle without modifying the side plate mold of the upper connecting plate or the backrest frame.

[0005] According to an embodiment of the present utility model, the upper connecting plate of the seat adjuster is adapted to be connected to the backrest frame and is also adapted to be rotatably connected to the seat cushion frame via the adjuster; wherein, the upper connecting plate includes a first connecting area and a second connecting area, the first connecting area is used to be connected to the backrest frame, and the second connecting area is provided with a plurality of mounting parts, the plurality of mounting parts being used to selectively combine to be detachably connected to adjusters of different specifications.

[0006] According to the embodiment of this utility model, the upper connecting plate of the seat adjuster has a first connecting area connected to the backrest frame, and a second connecting area provided with multiple mounting parts. The multiple mounting parts can be selectively connected with adjusters of different specifications. Different adjusters can be switched at low cost and in a short cycle without modifying the side plate mold of the upper connecting plate or the backrest frame, thus making it more applicable.

[0007] According to the upper connecting plate of the seat adjuster in this embodiment of the present utility model, the first connecting area includes a mating part and connecting flanges disposed on both sides of the mating part. The mating part is adapted to be positioned and connected with the backrest frame, and the connecting flanges are connected to the backrest frame.

[0008] This utility model embodiment discloses a seat frame assembly, including the upper connecting plate of the aforementioned seat adjuster. The adjuster includes a first part and a second part that can rotate relative to each other. The first part is provided with a plurality of protrusions, the number of which is less than or equal to the number of the plurality of mounting parts. The plurality of protrusions and at least a portion of the plurality of mounting parts are in one-to-one correspondence and cooperation. The second part is fixedly connected to the seat cushion frame.

[0009] According to the seat frame assembly of the seat adjuster in this embodiment of the utility model, the upper connecting plate can be connected to the adjuster, and the multiple protrusions of the first part and the multiple mounting parts of the upper connecting plate are matched one by one. The first part can rotate relative to the second part. Then the second part is connected to the seat cushion frame, and the first part is connected to the backrest frame, thereby realizing that the backrest frame can rotate relative to the seat cushion frame.

[0010] According to the seat frame assembly of this utility model embodiment, the second connection area is provided with a mating groove, the mounting part is located in the mating groove, the first part is positioned and connected to the mating groove and the protrusion is mated with the mounting part.

[0011] According to the seat frame assembly of this utility model embodiment, the first part includes a connecting part located at the center, and the center of the mating groove is provided with a central hole. When the first part mates with the mating groove, the connecting part extends from one side of the upper connecting plate to the other side at the central hole.

[0012] According to the seat frame assembly of this utility model embodiment, the backrest frame is provided with an adjuster on both sides along the width direction, and a connecting rod is connected between the two connecting parts of the two adjusters. When the connecting rod rotates, it drives the backrest frame to rotate relative to the seat cushion frame.

[0013] According to the seat frame assembly of this utility model embodiment, the connecting rod is connected to a driving member, the first connecting area is provided with a fixing groove, and at least a portion of the driving member is connected to the upper connecting plate at the fixing groove through a connecting member.

[0014] According to the seat frame assembly of this utility model embodiment, a lower connecting plate is also fixedly connected around the second part, and the lower connecting plate is fixedly connected to the seat cushion frame.

[0015] According to the seat frame assembly of this utility model embodiment, the upper connecting plate is further provided with a limiting connecting part, the limiting connecting part is used to connect the backrest limiting part, the lower connecting plate is provided with a first limiting part and a second limiting part distributed in the front-back direction, and the backrest frame is adapted to rotate relative to the seat cushion frame, the limiting connecting part selectively contacts and limits the first limiting part or the second limiting part.

[0016] A vehicle according to an embodiment of the present invention includes the above-described seat frame assembly.

[0017] The advantages of the vehicle described above compared to existing technologies are the same as those of the seat frame assembly described above compared to existing technologies, and will not be elaborated here.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the upper connecting plate of the seat adjuster according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure connecting the upper connecting plate of the seat adjuster, the backrest frame, and the adjuster in an embodiment of this utility model. Figure 3 This is a schematic diagram showing the connection relationship between the upper connecting plate of the seat adjuster, the adjuster, and the connecting rod in an embodiment of this utility model. Figure 4 This is a structural schematic diagram of the upper connecting plate of the seat adjuster according to an embodiment of the present invention from an outer perspective; Figure 5 This is a structural schematic diagram of the upper connecting plate of the seat adjuster according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the upper connecting plate of the seat adjuster connected to the outer side view of the seat adjuster according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the inner side view of the upper connecting plate of the seat adjuster according to an embodiment of the present invention.

[0020] Figure label: Seat frame assembly 100, Seat cushion frame 1, backrest frame 2, side panel 21, side panel connecting groove 211, side panel connecting part 212, upper connecting plate 3, first connecting area 31, mating part 311, positioning hole 3111, fixing groove 3112, limiting connecting part 3113, connecting flange 312, second connecting area 32, mating groove 321, mounting part 322, center hole 323, backrest limiting part 33, connector 34, angle adjuster 4, first part 41, connecting part 411, connecting hole 4111, protrusion 412, second part 42, lower connecting plate 5, first limiting part 51, second limiting part 52, connecting rod 6, driving component 7. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Unless otherwise specified, the front-back direction in this application refers to the longitudinal direction of the vehicle, i.e., the X direction; the left-right direction refers to the lateral direction of the vehicle, i.e., the Y direction; and the up-down direction refers to the vertical direction of the vehicle, i.e., the Z direction.

[0024] The following is for reference. Figures 1-7 The upper connecting plate 3 of the seat adjuster 4 according to the embodiment of the present utility model is described. The first connecting area 31 of the upper connecting plate 3 of the seat adjuster 4 is connected to the backrest frame 2. The second connecting area 32 is provided with a plurality of mounting parts 322. The plurality of mounting parts 322 can be selectively connected with adjusters 4 of different specifications. The switching of different adjusters 4 can be achieved at low cost and short cycle without modifying the mold of the upper connecting plate 3 or the side plate 21 of the backrest frame 2.

[0025] like Figure 1-7As shown, according to an embodiment of the present invention, the upper connecting plate 3 of the seat adjuster 4 is adapted to be connected to the backrest frame 2 and is adapted to be rotatably connected to the seat cushion frame 1 through the adjuster 4.

[0026] The upper connecting plate 3 includes a first connecting area 31 and a second connecting area 32. The first connecting area 31 is used to connect with the backrest frame 2. The second connecting area 32 is provided with a plurality of mounting parts 322. The plurality of mounting parts 322 are used to selectively combine to detachably connect with adjusters 4 of different specifications.

[0027] In practice, the backrest frame 2 of the vehicle seat is an important component of the seat frame assembly 100. Its core function is to maintain the correct sitting posture, provide necessary support for passengers when turning, and also play a protective role in the event of a collision. The seat cushion frame 1 is the metal frame structure that supports the seat cushion inside the seat. It provides the basic support structure for the entire seat, and the metal frame bears the pressure of the human body to ensure that the shape of the seat cushion is stable and does not deform.

[0028] The angle adjuster 4 is a key component of the vehicle seat, mainly installed between the backrest frame 2 and the seat cushion frame 1. It is used to adjust the tilt angle of the backrest frame 2 to adapt to different human postures and transmit force. The backrest frame 2 has a side plate 21 on its outer side along the width direction, and the upper connecting plate 3 can be connected to the side plate 21 by connecting bolts or other fixed connections.

[0029] Specifically, the upper connecting plate 3 is divided into a first connecting area 31 and a second connecting area 32 along the direction of the backrest frame 2. The first connecting area 31 can be connected to the side plate 21. The second connecting area 32 can be used to connect the angle adjuster 4. Of course, the second connecting area 32 can be connected to the side plate 21 at the same time as the angle adjuster 4. The angle adjuster 4 on the market can be set with multiple protrusions 412, such as four protrusions 412, or five or six protrusions 412. By setting multiple mounting parts 322 in the second connecting area 32, such as mounting holes, the mounting parts 322 can be set to six, so that the angle adjusters 4 with four or six protrusions 412 on the market can be connected to the upper connecting plate 3, thereby improving the versatility of the upper connecting plate 3 and simplifying the structure.

[0030] That is, after the upper connecting plate 3 is connected to the side plate 21 of the backrest frame 2, when the angle adjuster 4 needs to be installed or replaced, it is not necessary to disassemble and replace the upper connecting plate 3. Different angle adjusters 4 can be connected to the upper connecting plate 3, thereby improving the versatility of the upper connecting plate 3 and making it more convenient to replace and install the angle adjuster 4.

[0031] In some embodiments, the first connection area 31 includes a mating part 311 and a connecting flange 312 disposed on both sides of the mating part 311. The mating part 311 is adapted to be positioned and connected with the backrest frame 2, and the connecting flange 312 is connected to the backrest frame 2.

[0032] Combination Figure 2 and Figure 4 As shown, the first connection area 31 is provided with a mating part 311 in the middle and connecting flanges 312 on both sides of the mating part 311. At the same time, the side plate 21 of the backrest frame 2 has a side plate connecting groove 211 and side plate connecting parts 212 on both sides of the side plate connecting groove 211. The mating part 311 of the upper connecting plate 3 can be constructed as a groove structure that fits the side plate 21, and the connecting flanges 312 can be connected to the positions of the side plate connecting parts 212 on both sides of the side plate connecting groove 211. By setting the first connection area 31 of the upper connecting plate 3 to have a mating part 311 and connecting flanges 312, when connecting the upper connecting plate 3, the position can be first located by the position of the mating part 311 and the side plate connecting groove 211, and the mating area between the upper connecting plate 3 and the side plate 21 is increased, thereby improving the reliability of the connection.

[0033] Furthermore, by configuring the upper connecting plate 3 with a mating part 311 and a connecting flange 312, the mating part 311 appears recessed relative to the connecting flange 312 when viewed from the outside of the seat frame. This creates a recessed groove in the mating part 311, which effectively strengthens the upper connecting plate 3 and improves its structural strength. Simultaneously, the connecting flange 312 can be configured to gradually narrow in width from the end furthest from the seat frame 1 to the end closest to the seat frame 1. This makes the transition between the first connecting area 31 and the second connecting area 32 smoother, improving the connection strength between the first connecting area 31 and the side plate 21 while reducing the impact of the connecting flange 312 on the connection of the adjuster 4 at the second connecting area 32.

[0034] Furthermore, it should be noted that the upper connecting plate 3 and the side plate 21 of this utility model embodiment have a high degree of fit, thereby improving the overall integrity of the connection between the upper connecting plate 3 and the side plate 21, and also saving space in the width direction of the seat frame assembly 100.

[0035] This utility model embodiment also discloses a seat frame assembly 100, including the upper connecting plate 3 of the aforementioned seat adjuster 4. The adjuster 4 includes a first part 41 and a second part 42 that can rotate relative to each other. The first part 41 is provided with a plurality of protrusions 412, the number of the plurality of protrusions 412 being less than or equal to the number of the plurality of mounting parts 322. The plurality of protrusions 412 and at least a portion of the plurality of mounting parts 322 are in one-to-one correspondence and cooperation. The second part 42 is fixedly connected to the seat cushion frame 1.

[0036] The first part 41 of the angle adjuster 4 can be connected to the backrest frame 2 as a whole, that is, when the backrest frame 2 rotates relative to the seat cushion frame 1, the first part 41 can rotate. The second part 42 is connected to the seat cushion frame 1 as a whole, and the first part 41 and the second part 42 can rotate relative to each other in the unlocked state. The unlocking method of the first part 41 and the second part 42 can adopt the unlocking method commonly used in the prior art. The existing angle adjusters 4 on the market all have two parts, one part is connected to the backrest frame 2 and the other part is connected to the seat cushion frame 1, and it is unlocked when it is necessary to adjust the rotation of the backrest frame 2 relative to the seat cushion frame 1.

[0037] When the first part 41 is connected to the backrest frame 2, the first part 41 is provided with multiple protrusions 412, and the upper connecting plate 3 is provided with multiple mounting parts 322. The number of protrusions 412 is less than or equal to the number of mounting parts 322. For example, the number of mounting parts 322 can be set to six, and the number of protrusions 412 can be set to four, six, etc., so that the protrusions 412 of different angle adjusters 4 can be matched with the corresponding number of mounting parts 322. For example, when some angle adjusters 4 have four protrusions 412, the four protrusions 412 can be matched with four of the six mounting parts 322 one by one.

[0038] For example, if the protrusions 412 of some angle adjusters 4 are set to six, then the six protrusions 412 can be matched one-to-one with the six mounting parts 322.

[0039] Therefore, by setting the number of multiple mounting parts 322 to be greater than the number of multiple protrusions 412 of the angle adjuster 4 on the market, and by combining the layout of the multiple mounting parts 322 with the layout of the different protrusions 412 of the multiple angle adjusters 4, refer to Figure 7 As shown, Figure 7 The middle angle adjuster 4 has four protrusions 412, while the upper connecting plate 3 has six mounting parts 322, which are distributed circumferentially. The positions of the four protrusions 412 correspond one-to-one with the positions of four of the six mounting parts 322, thereby satisfying the connection requirements between the angle adjuster 4 and the upper connecting plate 3.

[0040] In some embodiments, the second connection area 32 is provided with a mating groove 321, the mounting part 322 is located in the mating groove 321, the first part 41 is positioned and connected to the mating groove 321 and the protrusion 412 is engaged with the mounting part 322.

[0041] Specifically, the second connection area 32 is provided with a circular mating groove 321. When the first part 41 of the angle adjuster 4 is positioned and connected in the mating groove 321, and at least part of the second part 42 can be provided on the outer periphery of the first part 41, and when the first part 41 and the second part 42 are unlocked, the backrest frame 2 is driven to rotate, which can drive the upper connecting plate 3 and the first part 41 to rotate simultaneously, thereby causing the first part 41 to rotate relative to the second part 42, that is, the backrest frame 2 to rotate relative to the seat cushion frame 1.

[0042] Therefore, by setting a circular mating groove 321, the positioning function of the first part 41 of the angle adjuster 4 is realized, and the mounting part 322 is set in the mating groove 321, so that the protrusion 412 of the first part 41 of the angle adjuster 4 can be matched with the multiple mounting parts 322 in the mating groove 321 one by one. The design of the mating groove 321 can reserve space for the protrusion 412 along the axial direction, and make the connection between the angle adjuster 4 and the upper connecting plate 3 more convenient, thereby improving the reliability of the connection.

[0043] In some embodiments, the first part 41 includes a connecting part 411 located at the center, and the center of the mating groove 321 is provided with a central hole 323. When the first part 41 is engaged with the mating groove 321, the connecting part 411 extends from one side of the upper connecting plate 3 to the other side at the central hole 323.

[0044] Specifically, multiple mounting parts 322 can be arranged circumferentially around the central hole 323. When the first part 41 of the angle adjuster 4 is located at the circular mating groove 321, the multiple protrusions 412 of the angle adjuster 4 mate with the multiple mounting parts 322 of the upper connecting plate 3 one by one. The mounting part 322 is a mounting hole, that is, the cross-sectional area of ​​the protrusion 412 is smaller than the opening area of ​​the mounting hole, which improves the mating efficiency between the protrusion 412 of the first part 41 and the mounting hole, and achieves rapid alignment. Then, the first part 41 can be welded to the mating groove 321 of the upper connecting plate 3, and the connecting part 411 extends into the central hole 323, thereby realizing the connection between the angle adjuster 4 and the upper connecting plate 3. At the same time, the connecting part 411 can extend from the outer side to the inner side of the upper connecting plate 3 along the vehicle width direction, which facilitates the connection of the connecting part 411 with other structures, and also achieves the effect of effectively positioning the angle adjuster 4 and the upper connecting plate 3.

[0045] In some embodiments, the backrest frame 2 is provided with an adjuster 4 on both sides along the width direction, and a connecting rod 6 is connected between the two connecting parts 411 of the two adjusters 4. When the connecting rod 6 rotates, it drives the backrest frame 2 to rotate relative to the seat cushion frame 1.

[0046] Combination Figure 1 and Figure 3As shown, the backrest frame 2 is connected to an upper connecting plate 3 on its outer side along the width direction. Each upper connecting plate 3 is connected to an adjuster 4. The adjusters 4 at both ends are engaged with the upper connecting plate 3 in the same way. A connecting rod 6 is connected between the adjusters 4 on both sides of the backrest frame 2 along the width direction. The connecting part 411 of each side of the adjuster 4 extends from the outer side of the upper connecting plate 3 into the inner side of the upper connecting plate 3. The connecting part 411 is provided with a hollow connecting hole 4111. The connecting rod 6 and the connecting hole 4111 can be splined. For example, the outer periphery of the connecting rod 6 is provided with multiple circumferentially distributed and axially extended protrusions, and the inner peripheral wall of the connecting hole 4111 is provided with multiple circumferentially distributed and axially extended strip grooves. When one end of the connecting rod 6 is inserted into the connecting hole 4111, the multiple protrusions are engaged with the multiple strip grooves on the inner peripheral wall of the connecting hole 4111 one by one, and extend out from the connecting hole 4111. This engagement method is more stable and convenient, and has good load-bearing capacity.

[0047] Furthermore, the end of the connecting rod 6 extends from the inside to the outside of the connecting part 411, which means that the end of the connecting rod 6 is located on the outside of the side plate 21. After the connecting rod 6 extends out of the side plate 21, the end of the connecting rod 6 can be further locked by using a locking cap or other means, which improves the reliability of the connection after the connecting rod 6 passes through the upper connecting plate 3 and the angle adjuster 4, and reduces the risk of the connecting rod 6 moving along the width direction of the seat frame assembly 100.

[0048] Furthermore, the connecting rod 6 is fixedly connected to the first part 41, which is equivalent to the connecting rod 6 and the backrest frame 2 being integrated. When the connecting rod 6 is driven to rotate, the backrest frame 2 is driven to rotate relative to the seat cushion frame 1. At the same time, the first part 41 of the angle adjuster 4 can rotate together with the backrest frame 2. The second part 42 of the angle adjuster 4 is fixedly connected to the seat cushion frame 1. Therefore, when the connecting rod 6 is driven to rotate, the connecting rod 6 can rotate through the driving connecting part 411, thereby driving the first part 41 of the angle adjuster 4 and the upper connecting plate 3 to rotate relative to the seat cushion frame 1, realizing the angle adjustment of the backrest frame 2 relative to the seat cushion frame 1.

[0049] In some embodiments, the connecting rod 6 is connected to the driving member 7, the first connecting area 31 is provided with a fixing groove 3112, and at least a portion of the driving member 7 is connected to the upper connecting plate 3 at the fixing groove 3112 via the connecting member 34.

[0050] Reference Figure 3 As shown, the driving component 7 is a drive motor. The driving component 7 is connected to the connecting rod 6, and the drive motor is adapted to drive the connecting rod 6 to rotate. The position of the driving component 7 can be set at the position of the connecting rod 6 near the inner side of the outer side plate 21. For example, the housing of the driving component 7 can be connected to the outer side plate 21, thereby leaving more space for the backrest frame 2 in the width direction of the seat frame assembly 100. For example, other structures of the backrest frame 2 can be set, or a backrest pad can be set.

[0051] In practice, the output end of the drive motor can be connected to a worm gear, and power is transmitted between the worm gear and the worm wheel. The worm wheel is sleeved and connected to the connecting rod 6 and drives the connecting rod 6 to rotate. The rotation of the connecting rod 6 drives the backrest frame 2, the upper connecting plate 3, and the first part 41 of the angle adjuster 4 to rotate. Adjusting the rotation of the connecting rod 6 by driving the motor is convenient, quick, time-saving and labor-saving.

[0052] The upper part of the upper connecting plate 3 is also provided with a fixing groove 3112, which allows the outer side of the drive motor housing to be provided with connecting ears. The connecting piece 34 passes through the fixing groove 3112 and connects with the connecting ears to fix the drive motor and improve the stability of the drive motor.

[0053] For example, the fixed groove 3112 can be along Figure 3 Extending vertically, multiple connectors 34 can be installed at the fixing groove 3112. Each connector 34 is a connecting bolt, comprising a rod and a head. The rod of the connecting bolt passes through the fixing groove 3112 from the outside of the upper connecting plate 3 and connects to the connecting lug of the drive motor housing. The head of the connecting bolt presses against the outside of the upper connecting plate 3 at the fixing groove 3112. Therefore, when multiple connecting bolts are installed, multiple holes do not need to be drilled, simplifying the design. The outside of the upper connecting plate 3 refers to the outside of the backrest frame 2 along the vehicle width direction.

[0054] Additionally, it should be noted that the upper connecting plate 3 is also provided with multiple positioning holes 3111. When it is necessary to connect the upper connecting plate 3 to the outside of the backrest frame 2, the side plate 21 is also provided with a positioning part corresponding to the positioning hole 3111. Of course, the positioning part can also be a positioning hole. The positioning hole 3111 of the upper connecting plate 3 and the positioning part of the side plate 21 can be initially positioned by a positioning component. The positioning component can be a positioning pin, which facilitates the welding between the upper connecting component 34 and the side plate 21. After the upper connecting plate 3 and the side plate 21 are welded together, the positioning component can be disassembled, so that the upper connecting plate 3 can be connected to a specific position of the backrest frame 2.

[0055] For example, four positioning holes 3111 can be set, and all four positioning holes 3111 are located at the position of the mating part 311. Two of the four positioning holes 3111 form a group, thereby forming two groups of positioning holes 3111. The two groups of positioning holes 3111 are located on both sides of the fixing groove 3112, which improves the uniformity of force during positioning and ensures the accurate installation position of the upper connecting plate 3.

[0056] In some embodiments, a lower connecting plate 5 is also fixedly connected around the second part 42, and the lower connecting plate 5 is fixedly connected to the seat cushion frame 1.

[0057] The lower connecting plate 5 is connected to the seat cushion frame 1, and the lower connecting plate 5 is fixedly connected to the second part 42 of the angle adjuster 4. When the backrest frame 2 rotates relative to the seat cushion frame 1, the lower connecting plate 5 remains fixedly connected to the seat cushion frame 1. The upper connecting plate 3 and the lower connecting plate 5 are rotatably connected through the angle adjuster 4. Thus, the lower connecting plate 5 facilitates the connection between the angle adjuster 4 and the seat cushion frame 1. Moreover, during the adjustment of the backrest frame 2, the lower connecting plate 5 transmits the rotational force of the backrest frame 2 to the seat cushion frame 1 by bearing pressure and torque, ensuring smooth and reliable adjustment.

[0058] In some embodiments, the upper connecting plate 3 is further provided with a limiting connecting part 3113, which is used to connect the backrest limiting part 33. The lower connecting plate 5 is provided with a first limiting part 51 and a second limiting part 52 distributed in the front-back direction. When the backrest frame 2 rotates relative to the seat cushion frame 1, the limiting connecting part 3113 selectively contacts and limits the first limiting part 51 or the second limiting part 52.

[0059] Combination Figure 2 , Figure 3 and Figure 5 As shown, the upper connecting plate 3 is also provided with a limiting connecting part 3113 for connecting the backrest limiting part 33. For example, the backrest limiting part 33 can be a structure that protrudes from the upper connecting plate 3. When the backrest frame 2 rotates relative to the seat cushion frame 1, the backrest frame 2 drives the upper connecting plate 3 to rotate relative to the lower connecting plate 5. The front and rear sides of the lower connecting plate 5 are respectively provided with a first limiting part 51 and a second limiting part 52. That is, when the backrest frame 2 rotates forward, the backrest limiting part 33 contacts the first limiting part 51 located on the front side of the backrest limiting part 33, which can limit the angle of the backrest frame 2 rotating forward relative to the seat cushion frame 1. When the backrest frame 2 rotates backward relative to the seat cushion frame 1, the backrest limiting part 33 contacts the second limiting part 52 located on the rear side of the backrest limiting part 33, which can limit the angle of the backrest frame 2 rotating backward relative to the seat cushion frame 1. Thus, the backrest frame 2 can be designed according to the angle of the backrest frame 2 relative to the seat cushion frame 1 required by the occupant's frequent sitting, thereby improving the stability of the backrest frame 2 after the angle is adjusted.

[0060] In addition, it should be noted that when connecting the backrest limiting part 33, not only can the backrest limiting part 33 be connected to the limiting connecting part 3113, but also a portion of the backrest limiting part 33 can be connected to at least a portion of the aforementioned positioning holes 3111 by bolts, so as to achieve a reliable connection between the backrest limiting part 33 and the upper connecting plate 3.

[0061] This utility model embodiment also proposes a vehicle, including the above-mentioned seat frame assembly 100, wherein the first connecting area 31 of the upper connecting plate 3 of the seat adjuster 4 is connected to the backrest frame 2, and the second connecting area 32 is provided with a plurality of mounting parts 322. The plurality of mounting parts 322 and adjusters 4 of different specifications can be selectively connected, and different adjusters 4 can be switched at low cost and in a short cycle without modifying the mold of the upper connecting plate 3 or the backrest side plate 21.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An upper connecting plate for a seat adjuster, characterized in that, The upper connecting plate (3) is adapted to be connected to the backrest frame (2) and is adapted to be rotatably connected to the seat cushion frame (1) via the angle adjuster (4); The upper connecting plate (3) includes a first connecting area (31) and a second connecting area (32). The first connecting area (31) is used to connect with the backrest frame (2). The second connecting area (32) is provided with a plurality of mounting parts (322). The plurality of mounting parts (322) are used to selectively combine to detachably connect with angle adjusters (4) of different specifications.

2. The upper connecting plate of the seat adjuster according to claim 1, characterized in that, The first connection area (31) includes a mating part (311) and a connecting flange (312) provided on both sides of the mating part (311). The mating part (311) is adapted to be positioned and connected with the backrest frame (2), and the connecting flange (312) is connected to the backrest frame (2).

3. A seat frame assembly, characterized in that, The seat adjuster (4) includes an upper connecting plate (3) of the seat adjuster according to any one of claims 1-2. The seat adjuster (4) includes a first part (41) and a second part (42) that can rotate relative to each other. The first part (41) is provided with a plurality of protrusions (412). The number of the plurality of protrusions (412) is less than or equal to the number of the plurality of mounting parts (322). The plurality of protrusions (412) and at least a portion of the plurality of mounting parts (322) are corresponding and engaged one-to-one. The second part (42) is fixedly connected to the seat cushion frame (1).

4. The seat frame assembly according to claim 3, characterized in that, The second connection area (32) is provided with a mating groove (321), the mounting part (322) is located in the mating groove (321), the first part (41) is positioned and connected to the mating groove (321), and the protrusion (412) is engaged with the mounting part (322).

5. The seat frame assembly according to claim 4, characterized in that, The first part (41) includes a connecting part (411) located in the center. The center of the mating groove (321) is provided with a central hole (323). When the first part (41) mates with the mating groove (321), the connecting part (411) extends from one side of the upper connecting plate (3) into the other side at the central hole (323).

6. The seat frame assembly according to claim 5, characterized in that, The backrest frame (2) is provided with an angle adjuster (4) on both sides along the width direction, and a connecting rod (6) is connected between the two connecting parts (411) of the two angle adjusters (4). When the connecting rod (6) rotates, it drives the backrest frame (2) to rotate relative to the seat cushion frame (1).

7. The seat frame assembly according to claim 6, characterized in that, The connecting rod (6) is connected to a driving member (7), and the first connecting area (31) is provided with a fixing groove (3112). At least a portion of the driving member (7) is connected to the upper connecting plate (3) at the fixing groove (3112) via a connecting member (34).

8. The seat frame assembly according to claim 7, characterized in that, The second part (42) is also fixedly connected to a lower connecting plate (5), which is fixedly connected to the seat frame (1).

9. The seat frame assembly according to claim 8, characterized in that, The upper connecting plate (3) is also provided with a limiting connecting part (3113), which is used to connect the backrest limiting part (33). The lower connecting plate (5) is provided with a first limiting part (51) and a second limiting part (52) distributed in the front-back direction. When the backrest frame (2) is rotated relative to the seat cushion frame (1), the limiting connecting part (3113) selectively contacts and limits the first limiting part (51) or the second limiting part (52).

10. A vehicle, characterized in that, Includes the seat frame assembly (100) according to any one of claims 3-9.

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