Horizontal motor of automobile seat

Abstract

The utility model provides a horizontal motor for an automobile seat, and solves the problem that the installation of a speed measurement magnetic ring is troublesome at present. The first bearing is arranged in the electric brush carrier and used for being matched with one end of the rotating shaft; the magnetic ring seat is arranged on the rotating shaft, a mounting hole matched with the rotating shaft is formed in the center of the magnetic ring seat, the magnetic ring seat comprises a supporting part and a first protruding part arranged at the upper end of the supporting part, the lower end of the supporting part is in contact with the first bearing, and a second protruding part is arranged on the outer wall of the first protruding part; one end of the speed measuring magnetic ring contacts with the upper end face of the supporting part, the other end of the speed measuring magnetic ring contacts with the bottom face of the commutator, and the inner wall of the speed measuring magnetic ring is provided with a limiting groove. The bottom surface of the speed measuring magnetic ring is attached to the top surface of the supporting part of the magnetic ring seat, the limiting groove is matched with the second protruding part, then the magnetic ring seat is installed on the rotating shaft, the top surface of the speed measuring magnetic ring is attached to the bottom surface of the commutator, finally, the electric brush carrier is installed at one end of the machine shell, the first bearing abuts against the bottom surface of the supporting part, and installation is completed.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically to a horizontal motor for automotive seats. Background Technology

[0002] Car seat leveling motors offer advantages such as allowing users to quickly adjust the seat to a comfortable position via buttons or memory function, avoiding the hassle of manual adjustment. These motors typically include a speed-sensing magnetic ring, which triggers an emergency stop mechanism by detecting abnormal speed changes to prevent motor overload. Currently, the installation of the speed-sensing magnetic ring generally involves pre-drilling threaded holes in both the shaft and the magnetic ring, then securing them with bolts, or bonding the magnetic ring to the shaft using high-temperature epoxy resin. The shaft surface requires pre-treatment (sandblasting + acetone cleaning) to improve adhesion. However, these methods of fixing the speed-sensing magnetic ring present installation challenges. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a car seat leveling motor, which solves the problem of the current cumbersome installation of speed measuring magnetic rings.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A car seat leveling motor includes a housing and a shaft. A brush holder is mounted on one end of the housing, and a commutator is mounted on the shaft. The motor also includes:

[0006] Bearing No. 1 is located inside the brush holder and is used to mate with one end of the rotating shaft;

[0007] A magnetic ring seat is mounted on a rotating shaft. The center of the magnetic ring seat has a mounting hole for cooperating with the rotating shaft. The magnetic ring seat includes a support part and a first protrusion at the upper end of the support part. The lower end of the support part contacts a first bearing. The outer wall of the first protrusion has a second protrusion.

[0008] The speed measuring magnetic ring has one end in contact with the upper surface of the support and the other end in contact with the bottom surface of the commutator. The inner wall of the speed measuring magnetic ring is provided with a limiting groove for cooperating with the second protrusion.

[0009] The inner wall of the mounting hole is evenly covered with anti-slip strips.

[0010] The diameter of the support gradually decreases towards the bearing No. 1, and the lower end of the support contacts the inner ring of the bearing No. 1.

[0011] The magnetic ring holder is made of PA66+30%GF material.

[0012] An elastic bushing is also installed on the rotating shaft.

[0013] An end cover is installed at the other end of the housing, and the end cover is fitted with a No. 2 bearing and a bearing pressure plate for engaging with the other end of the rotating shaft.

[0014] The inner wall of the housing is evenly distributed with magnetic tiles, and magnetic tile clamps are provided between the magnetic tiles.

[0015] The beneficial effects of this utility model are:

[0016] Place the bottom surface of the speed measuring magnetic ring against the top surface of the support part of the magnetic ring seat and align the limiting groove with the second protrusion. Then, install the magnetic ring seat on the rotating shaft, aligning the top surface of the speed measuring magnetic ring against the bottom surface of the commutator. Finally, install the brush holder at one end of the housing, with the first bearing pressing against the bottom surface of the support part. This completes the installation. The speed measuring magnetic ring is simple and convenient to install. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the present invention.

[0018] Figure 2 This is a three-dimensional schematic diagram of the magnetic ring seat of this utility model.

[0019] Figure 3 This is a front view of the magnetic ring holder of this utility model.

[0020] Figure 4 This is a schematic diagram of the speed measuring magnetic ring of this utility model.

[0021] Figure 5 This is a schematic diagram of the housing and the magnetic tile of this utility model.

[0022] 1. Housing; 2. Shaft; 3. Brush holder; 4. Commutator; 5. Bearing No. 1; 6. Magnetic ring seat; 61. Support part; 62. Protrusion No. 1; 63. Protrusion No. 2; 7. Mounting hole; 8. Speed ​​measuring magnetic ring; 9. Limiting groove; 10. Anti-slip strip; 11. Elastic bushing; 12. End cover; 13. Bearing No. 2; 14. Bearing pressure plate; 15. Magnetic tile; 16. Magnetic tile clamping plate. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] In the embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the car seat horizontal motor includes a housing 1 and a rotating shaft 2. A brush holder 3 is mounted on one end of the housing 1, and a commutator 4 is mounted on the rotating shaft 2. It also includes:

[0025] Bearing 5 is installed inside brush holder 3 and is used to mate with one end of rotating shaft 2;

[0026] A magnetic ring seat 6 is mounted on a rotating shaft 2. The center of the magnetic ring seat 6 is provided with a mounting hole 7 for cooperating with the rotating shaft 2. The magnetic ring seat 6 includes a support part 61 and a first protrusion 62 provided on the upper end of the support part 61. The lower end of the support part 61 contacts a first bearing 5. The outer wall of the first protrusion 62 is provided with a second protrusion 63.

[0027] The speed measuring magnetic ring 8 has one end in contact with the upper surface of the support part 61 and the other end in contact with the bottom surface of the commutator 4. The inner wall of the speed measuring magnetic ring 8 is provided with a limiting groove 9 for cooperating with the second protrusion 63.

[0028] Place the bottom surface of the speed measuring magnetic ring 8 against the top surface of the support part 61 of the magnetic ring seat 6 and make the limiting groove 9 engage with the second protrusion 63. Then, install the magnetic ring seat 6 on the rotating shaft 2, so that the top surface of the speed measuring magnetic ring 8 is in contact with the bottom surface of the commutator 4. Finally, install the brush holder 3 at one end of the housing and let the first bearing 5 press against the bottom surface of the support part 61 to complete the installation. The speed measuring magnetic ring 8 is simple and convenient to install.

[0029] In the embodiments, such as Figure 2 As shown, anti-slip strips 10 are evenly distributed on the inner wall of the mounting hole 7. This prevents the rotating shaft 2 from slipping on the magnetic ring seat 6 when it rotates.

[0030] In the embodiments, such as Figure 1 , Figure 3 As shown, the diameter of the support portion 61 gradually decreases towards the bearing 5, and the lower end of the support portion 61 contacts the inner ring of the bearing 5. The bottom of the support portion 61 contacts the inner ring of the bearing 5, allowing the support portion 61 to rotate synchronously with the inner ring of the bearing 5, without causing friction with the bearing 5.

[0031] In this embodiment, the magnetic ring seat 6 is made of PA66+30%GF material. PA66+30%GF is a composite material of polyamide 66 and 30% glass fiber, which has good electrical insulation properties and will not affect the speed measuring magnetic ring 8. At the same time, it has good heat resistance and dimensional stability, and the magnetic ring seat 6 has a long service life.

[0032] In the embodiments, such as Figure 1 As shown, an elastic bushing 11 is also installed on the rotating shaft 2. The elastic bushing 11 can absorb vibration and improve the stability of the rotation of the rotating shaft 2.

[0033] In the embodiments, such as Figure 1As shown, an end cover 12 is installed at the other end of the housing 1. The end cover 12 is equipped with a second bearing 13 for engaging with the other end of the rotating shaft 2, and a bearing pressure plate 14. The first bearing 5 and the second bearing 13 engage with the upper and lower ends of the rotating shaft 2 respectively, ensuring smooth rotation of the rotating shaft 2, preventing the rotating shaft 2 from shifting or shaking during rotation, and reducing friction of the rotating shaft 2 to improve the operating efficiency of the motor.

[0034] In the embodiments, such as Figure 5 As shown, the inner wall of the housing 1 is evenly distributed with magnetic tiles 15, and magnetic tile clamps 16 are provided between the magnetic tiles 15. The magnetic tile clamps 16 can prevent the magnetic tiles 15 from shifting or loosening, ensure the uniform distribution of the magnetic field, and avoid magnetic field attenuation or distortion caused by magnetic tile offset.

[0035] Obviously, the above embodiments of this utility model are merely illustrative examples and not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A horizontal motor for a car seat, comprising a housing (1) and a rotating shaft (2), one end of the housing (1) being provided with a brush holder (3), and the rotating shaft (2) being provided with a commutator (4), characterized in that, Also include: No. 5, set in the brush holder (3) and used with the rotating shaft (2) one end cooperation; Magnetic ring seat (6), set on the rotating shaft (2), the center of the magnetic ring seat (6) is provided with a mounting hole (7) for cooperation with the rotating shaft (2), the magnetic ring seat (6) includes a support part (61) and a first protruding part (62) provided on the upper end of the support part (61), the lower end of the support part (61) is in contact with the No. 5 bearing, the outer wall of the first protruding part (62) is provided with a second protruding part (63); Speed measuring magnetic ring (8), one end of the speed measuring magnetic ring (8) is in contact with the upper end surface of the support part (61), and the other end is in contact with the bottom surface of the commutator (4), the inner wall of the speed measuring magnetic ring (8) is provided with a limiting groove (9) for cooperation with the second protruding part (63).

2. The horizontal motor for a car seat according to claim 1, wherein: The inner wall of the mounting hole (7) is uniformly provided with anti-skid strips (10).

3. The horizontal motor for a car seat according to claim 1, wherein: The diameter of the support part (61) gradually decreases towards the direction close to the No. 5 bearing, and the lower end of the support part (61) is in contact with the inner ring of the No. 5 bearing.

4. The horizontal motor for a car seat according to claim 1, wherein: The magnetic ring seat (6) is made of PA66+30%GF material.

5. The horizontal motor for a car seat according to claim 1, wherein: The rotating shaft (2) is further provided with an elastic shaft sleeve (11).

6. The horizontal motor for a car seat according to claim 1, wherein: The other end of the shell (1) is provided with an end cover (12), the end cover (12) is provided with a No. 13 bearing for cooperation with the other end of the rotating shaft (2) and a bearing pressing plate (14).

7. The horizontal motor for a car seat according to claim 1, wherein: The inner wall of the shell (1) is uniformly provided with magnetic shoes (15), and the magnetic shoes (15) are provided with magnetic shoe clamps (16) between them.

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