Motor for air supply unit of automobile air spring

Abstract

The utility model relates to the technical field of bearing processing, in particular to a motor for an air supply unit of an automobile air spring, which comprises a motor, an output shaft of the motor is in threaded connection with an eccentric wheel, and the edge of the upper surface of the eccentric wheel is provided with a connecting bearing; the brushless motor is adopted, the noise is low, the efficiency is high, and the service life is long; the installation with other parts of the gas supply unit is convenient; electronic commutation and EMC performance are good; operation is stable, and speed regulation precision is high.

Description

Technical Field

[0001] This utility model relates to the field of bearing processing technology, and in particular to a motor for an automotive air spring supply unit. Background Technology

[0002] With the development of new energy vehicles, the requirements for comfort are getting higher and higher, and air suspension systems have developed rapidly; at the same time, the development of intelligence and electrification has also placed higher and higher demands on the air spring supply unit of the air suspension system.

[0003] This invention relates to a permanent magnet brushless DC motor for use in the closed-loop air supply unit of an automotive air suspension system. In existing technologies, the motors used in closed-loop air supply units for air springs are typically permanent magnet brushed DC motors, and the motor and valve body have a radial sealing structure. Existing technologies suffer from drawbacks such as high noise levels, difficult installation, high heat generation, low efficiency, and severe electromagnetic interference. This invention effectively solves these problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a motor for an automotive air spring supply unit.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a motor for an automotive air spring supply unit, comprising a motor, wherein the output shaft of the motor is threadedly connected to an eccentric wheel, and a connecting bearing is provided at the edge of the upper surface of the eccentric wheel.

[0006] Preferably, the output shaft of the motor is fixedly connected to a threaded column, the outer surface of the eccentric wheel is provided with a threaded hole, and the threaded column is threaded to the inner side of the threaded hole.

[0007] Preferably, a bearing positioning ring is fixedly embedded on the upper surface of the motor, and the threaded column rotates through the inner side of the bearing positioning ring.

[0008] Preferably, a rotating shaft is fixedly connected to the upper surface edge of the eccentric wheel, and the inner side of the connecting bearing is fixedly sleeved on the outer surface of the rotating shaft.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] 1. The brushless motor of this utility model has low noise, high efficiency, and long life;

[0011] 2. This utility model is easy to install along with other components of the gas supply unit;

[0012] 3. This utility model features electronic commutation and exhibits excellent EMC performance;

[0013] 4. This utility model operates smoothly and has high speed regulation accuracy. Attached Figure Description

[0014] Figure 1 This is a partial structural schematic diagram of a motor for an automotive air spring supply unit according to the present invention;

[0015] Figure 2 This is a cross-sectional view of the mold base of a motor for an automotive air spring supply unit according to this utility model.

[0016] Figure 3 This utility model relates to a motor for an automotive air spring supply unit. Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a schematic diagram of the expansion sleeve and fixing cylinder of the motor used in the air supply unit of an automotive air spring according to this utility model.

[0018] 1. Motor; 2. Threaded column; 3. Eccentric wheel; 4. Threaded hole; 5. Shaft; 6. Connecting bearing; 7. Bearing positioning ring. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] like Figures 1-4 The diagram shows a motor for an automotive air spring supply unit, including a motor 1, which is a conventional brushless motor. The motor 1 includes a rotor assembly comprising a shaft, rotor core, magnets, end caps, bearings, etc., connected to a stator housing via the end caps. It also includes a stator assembly comprising a housing, silicon steel sheets, enameled wire, insulating plastic frame, etc., which generates a rotating magnetic field when energized, causing the rotor to rotate. The flanged surface of the housing forms a planar seal with the valve body of the air supply unit.

[0021] The output shaft of motor 1 is threadedly connected to an eccentric wheel 3, and a connecting bearing 6 is provided at the edge of the upper surface of the eccentric wheel 3.

[0022] The output shaft of motor 1 is fixedly connected to a threaded post 2. The outer surface of the eccentric wheel 3 has a threaded hole 4, and the threaded post 2 is threaded to the inner side of the threaded hole 4. The connection between the eccentric wheel 3 and the threaded post 2 is achieved by rotation, which is convenient for assembly.

[0023] A bearing positioning ring 7 is fixedly embedded on the upper surface of the motor 1, and the threaded column 2 rotates through the inner side of the bearing positioning ring 7 to improve the positioning rigidity.

[0024] A rotating shaft 5 is fixedly connected to the upper edge of the eccentric wheel 3, and the inner side of the connecting bearing 6 is fixedly sleeved on the outer surface of the rotating shaft 5. The connecting bearing 6 is connected to the external power input end.

[0025] This utility model uses a brushless motor, which has low noise, high efficiency and long service life; it is easy to install with other components of the air supply unit; it has electronic commutation and good EMC performance; it runs smoothly and has high speed regulation accuracy.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A motor for an automotive air spring supply unit, comprising a motor (1), characterized in that: The output shaft of the motor (1) is threadedly connected to an eccentric wheel (3), and a connecting bearing (6) is provided at the edge of the upper surface of the eccentric wheel (3). The output shaft of the motor (1) is fixedly connected to a threaded column (2), and the outer surface of the eccentric wheel (3) is provided with a threaded hole (4). The threaded column (2) is threadedly connected to the inner side of the threaded hole (4). The upper surface of the motor (1) is fixedly fitted with a bearing positioning ring (7), and the threaded column (2) rotates through the inner side of the bearing positioning ring (7). A rotating shaft (5) is fixedly connected to the edge of the upper surface of the eccentric wheel (3), and the inner side of the connecting bearing (6) is fixedly sleeved on the outer surface of the rotating shaft (5).

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