Improved automobile seat horizontal adjusting motor

Abstract

The utility model discloses an improved automobile seat horizontal adjusting motor, which comprises a casing, a front end cover and a rear end cover, a plurality of magnetic shoes arranged at intervals in an annular array are arranged on the inner wall of the casing, a motor shaft is arranged on the inner side of the magnetic shoe array, an iron core and a commutator are sleeved on the motor shaft, and a carbon brush is arranged on the rear end cover. The front end part of the motor shaft is rotatably mounted on the front end cover through a front end bushing, and the rear end part of the motor shaft is rotatably mounted on the rear end cover through a rear end bushing; an axial elastic buffer structure is arranged between the front end bushing and the iron core, the axial elastic buffer structure comprises an elastic buffer pad and an axial pre-tightening pad which are respectively sleeved on the periphery of the motor shaft, and the elastic buffer pad is positioned on the front end side of the axial pre-tightening pad; the front end face of the elastic buffering cushion abuts against the front end bushing, the rear end face of the elastic buffering cushion abuts against the axial pre-tightening cushion, and the axial pre-tightening cushion makes contact with the front end face of the iron core. By means of the structural design, the hydraulic cylinder has the advantages of being novel in structural design, good in stability and reliability and low in mechanical movement noise.

Description

Technical Field

[0001] This utility model relates to the field of motor driver technology, and in particular to an improved automobile seat leveling motor. Background Technology

[0002] NVH is an abbreviation for Noise, Vibration, and Harshness, representing noise, vibration, and discomfort. NVH optimization is a crucial aspect of the automotive industry. Noise, vibration, and discomfort can cause passenger discomfort and fatigue, impacting driving experience and safety. NVH optimization not only improves vehicle comfort and quality but also reduces the environmental impact of noise and vibration, which is vital for environmental protection and sustainable development. Therefore, NVH optimization has become an essential component of modern automotive design and manufacturing.

[0003] The Chinese utility model patent with patent number ZL201820403192.4 and patent name, entitled "Improved Structure for Noise Reduction of Micro Motors," discloses the following technical solution: An improved structure for noise reduction of micro motors includes a housing, a magnetic tile, a retaining ring, an output spindle, an iron core, a commutator, a retainer, a carbon frame, and a rear cover. The magnetic tile is fixed to the bottom of the inner side of the housing. The housing is locked to the rear cover by the retaining ring. The iron core includes five evenly distributed circular iron core units with a hollow center. A copper coil is wound around the iron core and is built into the housing. The output spindle passes through the iron core and extends to the outside of the housing at the top, where it is connected to the drive component. The carbon frame is set on the rear cover and filled with carbon crystals. The commutator and retainer are sequentially sleeved on the lower end of the output spindle. The commutator is in contact with the carbon crystals. The retainer is secured to the bearing of the rear cover. A lead terminal is provided at the bottom of the rear cover.

[0004] It should be noted that the above-mentioned improved structure for noise reduction of micro motors still has the following defects: due to the assembly gap or repeated axial force during use, the rotor of the motor will have axial movement; due to the lack of an axial elastic buffer structure, axial movement is inevitable in the above-mentioned improved structure for noise reduction of micro motors, which is not conducive to NVH optimization. Utility Model Content

[0005] The purpose of this utility model is to provide an improved car seat leveling motor to address the shortcomings of the existing technology. This improved car seat leveling motor has a novel structural design, good stability and reliability, and low mechanical noise.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] An improved car seat leveling motor includes a housing, a front cover installed at the front end of the housing, and a rear cover installed at the rear end of the housing. The inner wall of the housing is equipped with a plurality of magnetic tiles arranged in a ring array at intervals. A motor shaft is installed on the inner side of the magnetic tile array. An iron core and a commutator are fitted on the motor shaft. The rear cover is equipped with carbon brushes that contact the commutator.

[0008] The front end of the motor shaft is rotatably mounted to the front cover via a front end cup, and the rear end of the motor shaft is rotatably mounted to the rear end cover via a rear end cup.

[0009] An axial elastic buffer structure is installed between the front end cup and the iron core. The axial elastic buffer structure includes an elastic buffer pad and an axial preload pad respectively fitted around the motor shaft. The elastic buffer pad is located on the front end side of the axial preload pad.

[0010] The front end face of the elastic buffer pad abuts against the front end cup, the rear end face of the elastic buffer pad abuts against the axial preload pad, and the axial preload pad contacts the front end face of the iron core.

[0011] The front cover has a through hole aligned with the axial direction of the motor shaft, and the rear cover has a through hole aligned with the axial direction of the motor shaft.

[0012] The inner walls of the front cover through hole and the rear cover through hole are respectively provided with spherical sections. The front cup is in spherical contact with the spherical section of the inner wall of the front cover through hole, and the rear cup is in spherical contact with the spherical section of the inner wall of the rear cover through hole.

[0013] The front cover has a front cup cover snapped into the through hole, and the front cup is limited to the corresponding spherical section by the front cup cover.

[0014] The rear cover has a back end cup cover snapped into the through hole, and the back end cup cover limits the position of the cup to the corresponding spherical section.

[0015] The motor shaft is fitted with a washer located between the front end cup and the elastic buffer pad.

[0016] The elastic buffer pad has a multi-faceted hollow structure, and the sidewalls of the elastic buffer pad have several hollow holes.

[0017] Compared with existing technologies, this utility model has the following beneficial effects: Specifically, for the axial elastic buffer structure composed of elastic buffer pads and axial preload pads, when the rotor part, including the motor shaft and iron core, experiences axial movement, this axial elastic buffer structure can, on the one hand, buffer and reduce vibration, and on the other hand, effectively reduce the amount of mechanical movement of the rotor part, thereby effectively reducing the noise generated by mechanical movement. Therefore, the improved car seat leveling motor of this utility model has the advantages of novel structural design, good stability and reliability, and low mechanical movement noise. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is an exploded view of the present invention.

[0021] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0022] Figure 4 This is a schematic diagram of the structure of the elastic cushioning pad of this utility model.

[0023] exist Figures 1 to 4 This includes:

[0024] 11-Housing; 12-Front end cover; 121-Front end cover through hole; 13-Rear end cover; 131-Rear end cover through hole; 14-Spherical section; 2-Magnetic tile; 3-Motor shaft; 4-Iron core; 51-Commutator; 52-Carbon brush; 611-Front end bushing; 612-Front end bushing cover; 621-Rear end bushing; 622-Rear end bushing cover; 71-Elastic buffer pad; 711-Hollow hole; 72-Axial preload pad; 73-Washer. Detailed Implementation

[0025] The present invention will now be described in conjunction with specific embodiments.

[0026] Example 1, as Figures 1 to 3 As shown, an improved car seat leveling motor includes a housing 11, a front cover 12 installed at the front end of the housing 11, and a rear cover 13 installed at the rear end of the housing 11. The inner wall of the housing 11 is equipped with a plurality of magnetic tiles 2 arranged in a ring array at intervals. A motor shaft 3 is installed on the inner side of the magnetic tile array. The motor shaft 3 is fitted with an iron core 4 and a commutator 51. The rear cover 13 is equipped with carbon brushes 52 that are in contact with the commutator 51.

[0027] Among them, such as Figure 2 and Figure 3 As shown, the front end of the motor shaft 3 is rotatably mounted on the front cover 12 via the front end cup 611, and the rear end of the motor shaft 3 is rotatably mounted on the rear end cover 13 via the rear end cup 621.

[0028] Furthermore, such as Figure 2 and Figure 3 As shown, an axial elastic buffer structure is installed between the front end cup 611 and the iron core 4. The axial elastic buffer structure includes an elastic buffer pad 71 and an axial preload pad 72 respectively fitted around the motor shaft 3. The elastic buffer pad 71 is located on the front end side of the axial preload pad 72.

[0029] Furthermore, such as Figure 2 and Figure 3 As shown, the front end face of the elastic buffer pad 71 abuts against the front end cup 611, the rear end face of the elastic buffer pad 71 abuts against the axial preload pad 72, and the axial preload pad 72 contacts the front end face of the iron core 4.

[0030] For the axial elastic buffer structure composed of elastic buffer pad 71 and axial preload pad 72 in this embodiment, when the rotor part including the motor shaft 3 and iron core 4 undergoes axial movement, the axial elastic buffer structure can play a role in buffering and vibration reduction on the one hand, and can effectively reduce the mechanical movement of the rotor part on the other hand, thereby effectively reducing the noise caused by mechanical movement.

[0031] It needs to be explained that, such as Figure 4 As shown, the elastic buffer pad 71 has a multi-faceted hollow structure, and the sidewalls of the elastic buffer pad 71 have several hollow holes 711. The hollow holes 711 in the elastic buffer pad 71 can effectively increase the elastic recovery ability of the elastic buffer pad 71, thereby improving the stability and reliability of the product.

[0032] In summary, the improved car seat leveling motor of this embodiment has the advantages of novel structural design, good stability and reliability, and low mechanical noise through the above structural design.

[0033] Example 2, as Figure 2 and Figure 3 As shown, the difference between this embodiment 2 and embodiment 1 is that: the front cover 12 has a front cover through hole 121 that is axially aligned with the motor shaft 3, and the rear cover 13 has a rear cover through hole 131 that is axially aligned with the motor shaft 3.

[0034] Among them, the inner wall of the front cover through hole 121 and the inner wall of the rear cover through hole 131 are respectively provided with spherical sections 14. The front cup 611 is in spherical contact with the spherical section 14 of the inner wall of the front cover through hole 121, and the rear cup 621 is in spherical contact with the spherical section 14 of the inner wall of the rear cover through hole 131.

[0035] It should be noted that the front cup 611 is in contact with the spherical section 14 of the front cover through hole 121, and the rear cup 621 is in contact with the spherical section 14 of the rear cover through hole 131. In this embodiment, the motor shaft 3 is supported by the front cup 611 and the rear cup 621. This structural design can effectively ensure that the motor shaft 3 has an automatic self-aligning function, thereby effectively improving the reliability of the product.

[0036] Example 3, as Figure 2 and Figure 3 As shown, the difference between this embodiment 3 and embodiment 2 is that: a front cup cover 612 is snapped into the through hole 121 of the front cover, and the front cup 611 is limited to the corresponding spherical segment 14 by the front cup cover 612 to ensure the stability of the position of the front cup 611.

[0037] The rear cover through hole 131 has a rear cup cover 622 snapped in, and the rear cup 621 is limited to the corresponding spherical section 14 by the rear cup cover 622 to ensure the stability of the position of the rear cup 621.

[0038] Example 4, as Figure 2 and Figure 3 As shown, the difference between this embodiment four and embodiment one is that the motor shaft 3 is fitted with a washer 73 located between the front end cup 611 and the elastic buffer pad 71.

[0039] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. An improved horizontal adjustment motor for an automobile seat, comprising a housing (11), a front end cover (12) arranged at a front end of the housing (11), and a rear end cover (13) arranged at a rear end of the housing (11), wherein a plurality of magnetic tiles (2) are arranged in a ring array on an inner wall of the housing (11), a motor shaft (3) is arranged on an inner side of the magnetic tile array, the motor shaft (3) is sleeved with an iron core (4) and a commutator (51), and the rear end cover (13) is arranged with a carbon brush (52) in contact with the commutator (51). A front end of the motor shaft (3) is rotatably arranged in the front end cover (12) through a front end cup (611), and a rear end of the motor shaft (3) is rotatably arranged in the rear end cover (13) through a rear end cup (621). characterized in that An axial elastic buffering structure is arranged between the front end cup (611) and the iron core (4), and the axial elastic buffering structure comprises an elastic buffering pad (71) and an axial pre-tightening pad (72) which are respectively sleeved on an outer periphery of the motor shaft (3), and the elastic buffering pad (71) is located at a front end side of the axial pre-tightening pad (72). A front end surface of the elastic buffering pad (71) is in abutment with the front end cup (611), a rear end surface of the elastic buffering pad (71) is in abutment with the axial pre-tightening pad (72), and the axial pre-tightening pad (72) is in contact with a front end surface of the iron core (4).

2. The improved horizontal adjustment motor of the automobile seat according to claim 1, characterized in that: The front end cover (12) is provided with a front cover through hole (121) axially aligned with the motor shaft (3), and the rear end cover (13) is provided with a rear cover through hole (131) axially aligned with the motor shaft (3). The inner wall of the front cover through hole (121) and the inner wall of the rear cover through hole (131) are respectively provided with a spherical surface section (14), the front end cup (611) is in spherical surface contact with the spherical surface section (14) of the inner wall of the front cover through hole (121), and the rear end cup (621) is in spherical surface contact with the spherical surface section (14) of the inner wall of the rear cover through hole (131).

3. The improved horizontal adjustment motor of the automobile seat according to claim 2, characterized in that: The front end cup cover (612) is buckled in the front cover through hole (121), and the front end cup (611) is limited in the corresponding spherical surface section (14) through the front end cup cover (612). The rear end cup cover (622) is buckled in the rear cover through hole (131), and the rear end cup (621) is limited in the corresponding spherical surface section (14) through the rear end cup cover (622).

4. The improved horizontal adjustment motor of the automobile seat according to claim 1, characterized in that: The motor shaft (3) is sleeved with a gasket (73) between the front end cup (611) and the elastic buffering pad (71).

5. The improved horizontal adjustment motor of an automobile seat according to any one of claims 1 to 4, characterized in that: The elastic buffering pad (71) is a multi-faceted hollow structure, and a plurality of hollow holes (711) are arranged on a side wall of the elastic buffering pad (71).

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