Single electric seat turntable

Abstract

A single-motor seat rotating disc comprises an upper rotating disc (100), a lower rotating disc (200), a motor assembly (300) and a locking mechanism (400), the locking mechanism (400) comprises a fluted disc (401) and a rotating disc (402), a plurality of first protrusions (4011) are evenly distributed on the fluted disc (401) along the circumference, and a plurality of second protrusions (4012) are evenly distributed on the rotating disc (402) along the circumference. A plurality of second protrusions (4021) and a plurality of third protrusions (4022) are evenly arranged on the outer circumferential face of the rotating disc (402) at intervals, and a pin roller (4024) and an elastic element (4025) are sequentially arranged between the first protrusion (4011) and the third protrusion (4022) close to the first protrusion (4011). The locking mechanism driven by the motor assembly is arranged between the upper rotating disc and the lower rotating disc, a gap can be eliminated through single motor driving, and the precision requirement for the locking mechanism is reduced; the locking mechanism adopts a modular design, so that the stepless adjustment of the electric turntable can be realized, and the locking mechanism can also be used in other electric turntable structures.

Description

Technical Field

[0001] This invention relates to the field of vehicle seat technology, and in particular to a single electric seat turntable. Background Technology

[0002] With the transformation and upgrading of the automotive industry and the upgrading of consumer demand, electric seats have been widely used in modern cars due to their convenience and comfort. An electric turntable uses a motor to drive the seat rotation, enabling electric control of the seat's rotation.

[0003] Most mainstream electric seat turntables on the market currently adopt a dual-motor structure. The principle is that two independent motors are responsible for the "unlocking" and "driving" functions respectively: one motor controls the opening and closing of the locking mechanism to fix or separate the turntable from the seat base; the other motor drives the turntable to rotate through gear transmission to adjust the seat angle. However, this design will have an adverse impact on the space layout, cost, and weight of the seat product, especially for small electric vehicles. Moreover, the precision required to achieve gapless locking is very high, which further increases the cost of driving the turntable.

[0004] Meanwhile, the electric turntable locking mechanism used in existing technologies can usually only provide a limited number of locking positions, which cannot cover any adjustment angle required by the user; and when not locked, there is a significant mechanical gap between the locking mechanism and the turntable, which causes the turntable to wobble significantly when the vehicle is moving, which not only affects the ride comfort, but may also produce abnormal noises, and even increase safety hazards during rapid acceleration and braking; in addition, this locking mechanism is directly arranged on the structural components of the electric turntable, which has a low degree of modularity.

[0005] Therefore, existing technologies need to be improved and enhanced. Summary of the Invention

[0006] To address the shortcomings of existing technologies, the purpose of this invention is to provide a single-motor seat turntable that achieves stepless adjustment using a single motor and ensures that the turntable locks without gaps when stopped at any rotation angle.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A single-motor seat turntable includes an upper turntable, a lower turntable, a motor assembly fixed to the lower turntable, and a locking mechanism disposed between the upper and lower turntables. The locking mechanism includes a toothed disc and a rotating disc. The toothed disc has a plurality of first protrusions evenly distributed along the circumference on the surface facing the rotating disc. The rotating disc has a plurality of second protrusions and a plurality of third protrusions evenly spaced on the outer circumferential surface. Each first protrusion is located in a locking cavity formed between an adjacent second protrusion and a third protrusion. A roller and an elastic element are sequentially arranged between the first protrusion and the adjacent third protrusion.

[0008] As a further embodiment of the present invention, the upper rotating disk and the lower rotating disk are further provided with a ball retainer and a plurality of balls, and a plurality of cavities for accommodating the balls are formed on the outer circumferential surface of the ball retainer.

[0009] As a further embodiment of the present invention, a pressing plate is provided above the upper rotating disk, and a plurality of elastic elements for pressing the upper rotating disk are uniformly arranged along the circumference on the surface of the pressing plate.

[0010] As a further embodiment of the present invention, the clamping plate includes a first semi-circular clamping plate and a second semi-circular clamping plate, wherein the first semi-circular clamping plate and the second semi-circular clamping plate are symmetrically arranged.

[0011] As a further aspect of the invention, it also includes a receiving member having a receiving space for accommodating the locking mechanism.

[0012] As a further embodiment of the present invention, the receiving member includes a plastic part and an end cap, the end cap being fixed together with the plastic part by a plurality of self-tapping screws.

[0013] As a further embodiment of the present invention, the receiving member further includes a locking disc, which is located on the side of the locking mechanism near the end cap.

[0014] As a further embodiment of the present invention, the rotating disk is fixed to the upper rotating disk by a number of screws.

[0015] As a further embodiment of the present invention, the receiving member is fixed to the lower rotating disk by a plurality of press-fit bolts.

[0016] Compared with the prior art, the beneficial effects of the present invention are: Due to the above structural design, namely the locking mechanism driven by a motor assembly between the upper and lower rotating disks, the gap can be eliminated by a single motor drive, reducing the precision requirements of the locking mechanism; the locking mechanism adopts a modular design, which can not only realize stepless adjustment of the electric turntable, but also be used in other electric turntable structures. Attached Figure Description

[0017] Appendix Figure 1This is a schematic diagram of the structure of an embodiment of the present invention; Appendix Figure 2 This is an exploded structural diagram of an embodiment of the present invention; Appendix Figure 3 This is a partial enlarged view of an embodiment of the present invention.

[0018] The labels in the diagram are as follows: 100 - Upper rotating disk, 200 - Lower rotating disk, 300 - Motor assembly, 400 - Locking mechanism, 500 - Ball retainer; 401-Gear disc, 402-Rotating disc, 403-Receiving component; 4011 - First protrusion; 4021 - Second protrusion, 4022 - Third protrusion, 4023 - Locking cavity, 4024 - Roller, 4025 - Elastic element; 501 - Cavity, 502 - Ball bearing; 101-Pressure plate, 102-Elastic element; 4031 - Plastic parts, 4032 - End caps, 4033 - Locking discs. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0020] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Example

[0023] like Figure 1-3 As shown, this application discloses a single-motor seat turntable, including an upper turntable 100, a lower turntable 200, a motor assembly 300 fixed to the lower turntable 200, and a locking mechanism 400 disposed between the upper turntable 100 and the lower turntable 200. The locking mechanism 400 includes a gear disk 401 and a rotating disk 402. The gear disk 401 has a plurality of first protrusions 4011 evenly distributed circumferentially on its surface facing the rotating disk 402. The rotating disk 402 is fixed to the upper rotating disk 100 by a plurality of screws. A plurality of second protrusions 4021 and a plurality of third protrusions 4022 are evenly spaced on the outer circumferential surface of the rotating disk 402. Each first protrusion 4011 is located between adjacent second protrusions 4021 and third protrusions 4022. Within the locking cavity 4023 formed between the first protrusion 4011 and the adjacent third protrusion 4022, a roller 4024 and an elastic element 4025 are sequentially arranged. Through this structural design, a locking mechanism driven by a motor assembly is provided between the upper and lower rotating disks. Single-motor drive eliminates gaps and reduces the precision requirements of the locking mechanism. The locking mechanism adopts a modular design, enabling stepless adjustment of the electric turntable and allowing its use in other electric turntable structures. Each side of the third protrusion has a groove, and each of the two adjacent elastic elements has a protrusion adapted to the groove on the side closest to the third protrusion. The side of the elastic element closest to the roller has an arc-shaped groove adapted to the roller.

[0024] When this application is in operation, the motor assembly 300 drives the gear disk 401 to rotate clockwise. The gear disk 401 pushes the roller 4024 to unlock from the rotating disk 402 and pushes the rotating disk 402 to rotate. Since the rotating disk 402 is fixed to the upper rotating disk 100, the upper rotating disk 100 is also driven to rotate. When the motor assembly 300 drives the gear disk 401 to rotate counterclockwise, an adjacent first protrusion 4011 will contact the third protrusion 4022 through the adjacent other roller 4024, thereby preventing the upper rotating disk 100 from rotating under the drive of the motor assembly.

[0025] Specifically, the upper rotating disk 100 and the lower rotating disk 200 are further provided with a ball retainer 500 and a plurality of balls 502, and a plurality of cavities 501 for accommodating the balls 502 are formed on the outer circumferential surface of the ball retainer 500.

[0026] Specifically, a pressing plate 101 is provided above the upper rotating disk 100. The pressing plate 101 includes a first semi-circular pressing plate and a second semi-circular pressing plate. The first semi-circular pressing plate and the second semi-circular pressing plate are symmetrically arranged. A plurality of elastic elements 102 for pressing the upper rotating disk 100 are evenly arranged along the circumference on the surface of the pressing plate 101.

[0027] Specifically, the locking mechanism further includes a receiving member 403, which is fixed to the lower rotating disk 200 by a plurality of press-fit bolts. The receiving member 403 includes a plastic part 4031 and an end cap 4032. The end cap 4032 and the plastic part 4031 are fixed together by a plurality of self-tapping bolts. The receiving member 403 also includes a locking disc 4033, which is located on the side of the locking mechanism 400 near the end cap 4032. The receiving member 403 has a receiving space for accommodating the locking mechanism, that is, a receiving space for accommodating the locking mechanism is formed between the locking disc and the plastic part.

[0028] In summary, the present invention, through the above-described structural design, overcomes the shortcomings of the prior art and features a reasonable structure, high modularity, and high safety.

[0029] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A single-motor seat turntable, characterized in that: It includes an upper rotating disk (100), a lower rotating disk (200), a motor assembly (300) fixed on the lower rotating disk (200), and a locking mechanism (400) disposed between the upper rotating disk (100) and the lower rotating disk (200). The locking mechanism (400) includes a toothed disc (401) and a rotating disc (402). The toothed disc (401) has a plurality of first protrusions (4011) evenly distributed along the circumference on the surface of the rotating disc (402). The rotating disc (402) has a plurality of second protrusions (4021) and a plurality of third protrusions (4022) evenly spaced on the outer circumferential surface of the rotating disc (402). Each first protrusion (4011) is located in a locking cavity (4023) formed between an adjacent second protrusion (4021) and a third protrusion (4022). A roller (4024) and an elastic element (4025) are sequentially arranged between the first protrusion (4011) and the adjacent third protrusion (4022).

2. The single-motor seat turntable according to claim 1, characterized in that: The upper rotating disk (100) and the lower rotating disk (200) are further provided with a ball retainer (500) and a plurality of balls (502), and a plurality of cavities (501) for accommodating the balls (502) are formed on the outer circumferential surface of the ball retainer (500).

3. The single-motor seat turntable according to claim 2, characterized in that: A pressing plate (101) is provided above the upper rotating disk (100), and a plurality of elastic elements (102) for pressing the upper rotating disk (100) are evenly arranged along the circumference on the surface of the pressing plate (101).

4. The single-motor seat turntable according to claim 3, characterized in that: The clamping plate (101) includes a first semi-circular clamping plate and a second semi-circular clamping plate, which are symmetrically arranged.

5. The single-motor seat turntable according to claim 1, characterized in that: It also includes a receiving member (403) having a receiving space for receiving the locking mechanism.

6. The single-motor seat turntable according to claim 5, characterized in that: The receiving component (403) includes a plastic part (4031) and an end cap (4032), the end cap (4032) and the plastic part (4031) being fixed together by a plurality of self-tapping screws.

7. The single-motor seat turntable according to claim 6, characterized in that: The receiving member (403) further includes a locking disc (4033) located on the side of the locking mechanism (400) near the end cap (4032).

8. The single-motor seat turntable according to claim 1, characterized in that: The rotating disk (402) is fixed to the upper rotating disk (100) by a number of screws.

9. The single-motor seat turntable according to claim 6, characterized in that: The receiving element (403) is fixed to the lower rotating disk (200) by a number of press-fit bolts.

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