Motor structure for air supply unit of air suspension

By leading the electrical terminals of the motor structure out from the side and arranging them on the same side as the controller circuit board, the problem of the non-compact motor structure in the existing technology is solved, a more compact air suspension air supply unit structure is achieved, resistance and heat loss are reduced, and the overall degree of integration is improved.

CN223378986UActive Publication Date: 2025-09-23NOVOTEC SHANGHAI ELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202422436986.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-10
Publication Date
2025-09-23
Estimated Expiration
2034-10-10

AI Technical Summary

Technical Problem

The electrical terminals of the motor structure of the existing air suspension air supply unit are arranged at the bottom of the motor structure, resulting in a non-compact overall structure, an inability to optimize the size, long electrical terminals and large heat loss.

Method used

The electrical terminals of the motor structure are led out from the side of the motor body and arranged on the same side as the controller circuit board. The motor end cover and the electrical terminals are an integrated structure, which simplifies the manufacturing process, reduces the number of terminal components, and shortens the electrical terminal path.

Benefits of technology

The compactness of the air suspension air supply unit structure is achieved, resistance and heat loss are reduced, the manufacturing process is simplified, the arrangement of other functional structural parts is facilitated, and the overall integration level is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor structure for an air suspension air supply unit, relates to the technical field of automobile air suspensions, and aims to solve the problem that the whole structure of the air suspension air supply unit is not compact. The air suspension air supply unit comprises a valve block, a motor structure is arranged at the top end of the valve block, and the motor structure comprises a motor body and an electrical terminal. The electrical terminal is arranged on the outer side of the motor body and connected with the motor body, the motor end cover is arranged at the bottom end of the motor body, the electrical terminal and the motor end cover are of an integrated structure, the controller circuit board and the motor structure are arranged at the same end of the valve block, the controller circuit board is connected with the electrical terminal, and the electrical terminal is led out from the side face of the motor body. The controller circuit board and the motor body are arranged on the same side of the valve block, so that the structure of the air suspension air supply unit is more compact, the motor end cover and the electrical terminal are of an integrated structure, the manufacturing process is simplified, the path of the electrical terminal is shortened, and resistance and heat loss are reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile air suspension, and more particularly to a motor structure for an air suspension air supply unit. Background Art

[0002] An air suspension system combines the comfort of a sedan with the performance of an off-road vehicle. It adjusts the ride height according to the undulations of the road, allowing the vehicle to adapt to various driving conditions. Air suspension systems are often used on off-road vehicles that frequently navigate challenging road conditions, ensuring smooth traversal of muddy, flooded, gravelly, and other surfaces.

[0003] The air suspension air supply unit is a device that compresses air and outputs it. Its main structural feature is that it forms a reciprocating piston gas compression mechanism through a crank-connecting rod. The rotational power source of the crank-connecting rod mechanism is a DC brushed motor or a brushless motor. After the motor is energized and rotated, it drives the crank-connecting rod mechanism to convert the rotational motion into linear reciprocating motion, and then pushes the piston to generate air at a certain pressure, realizing the pumping function.

[0004] The motor structure for the air suspension air supply unit is generally installed on one side of the valve block of the air suspension air supply unit. An eccentric crank-connecting rod mechanism is set on the motor output shaft. The crank in the crank-connecting rod mechanism is equipped with an eccentric block design to balance the inertia force.

[0005] In existing air suspension air supply units, the electrical terminals of the motor structure are located at the bottom of the motor structure. When connecting the motor structure to the valve block, the electrical terminals must pass through the valve block (i.e., "through the wall") to connect to the external controller circuit board on the other side of the valve block, and must meet sealing requirements. Specifically, the electrical terminals of existing air suspension air supply unit motor structures are connected directly to the bottom of the motor. The controller circuit board can only be located opposite the motor structure, which limits the overall structure of the air suspension air supply unit and prevents further size reduction and optimization. Furthermore, the electrical terminals must pass through the valve block to connect to the controller circuit board on the other side of the valve block, making the electrical terminals longer and resulting in greater heat loss.

[0006] Therefore, how to solve the problem that the overall structure of the air suspension air supply unit is not compact is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the purpose of the present invention is to provide a motor structure for an air suspension air supply unit, so that the structure of the air suspension air supply unit is more compact, the manufacturing process is simple, the path of the electrical terminal is shortened, the resistance is small, and the heat generation is small.

[0008] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0009] A motor structure for an air suspension air supply unit, comprising:

[0010] Valve block;

[0011] The motor structure is provided at the top of the valve block. The motor structure includes a motor body and electrical terminals. The electrical terminals are provided on the outside of the motor body and connected to the motor body. The bottom end of the motor body is provided with a motor end cover. The electrical terminals and the motor end cover are an integrated structure.

[0012] The controller circuit board and the motor structure are arranged at the same end of the valve block, and the controller circuit board is connected to the electrical terminal.

[0013] Preferably, the motor body also includes a stator assembly, a rotor assembly and a commutator assembly. The rotor assembly is sleeved on the top end of the motor shaft of the motor body. The rotor assembly is provided with a coil armature connected to the electrical terminal. The stator assembly is sleeved on the outer periphery of the rotor assembly. The rotor assembly is rotatably connected to the stator assembly. The commutator assembly is sleeved on the outer periphery of the motor shaft and is located below the rotor assembly.

[0014] Preferably, the electrical terminal includes a first connecting portion and a second connecting portion, the first connecting portion is connected to the second connecting portion, one end of the first connecting portion is connected to the controller circuit board, and one end of the second connecting portion is connected to the coil armature, etc.

[0015] Preferably, the first connecting portion is arranged on the outside of the motor body and extends along the direction of the motor shaft, and the other ends of the first connecting portion and the second connecting portion are both arranged in the motor end cover.

[0016] Preferably, the first connecting portion is a cylindrical structure, and the second connecting portion is a U-shaped structure.

[0017] Preferably, a motor housing is provided on the outside of the motor body, and the bottom end of the motor housing has a mounting flange that bends and extends outward, and a notch is provided on the mounting flange. A window that is connected to the notch is circumferentially provided at the bottom end of the motor housing, and a terminal mounting seat is integrated on the motor end cover, and the terminal mounting seat is installed in the notch and the window.

[0018] Preferably, the main body of the motor end cover is inserted into the motor housing, and a first sealing ring is connected between the outer circumference of the main body and the inner circumference of the motor housing, and a second sealing ring is connected between the outer circumference of the lower end of the main body and the valve block.

[0019] Preferably, a positive terminal and a negative terminal are provided on the first connecting portion, and a third sealing ring is sleeved on the positive terminal and the negative terminal. A terminal sealing structure is provided on the upper part of the third sealing ring to press the third sealing ring on the mounting base of the controller circuit board.

[0020] Preferably, the output end of the motor shaft is sleeved with an output shaft structure, the output shaft structure is connected to a crank-connecting rod mechanism, and the crank-connecting rod mechanism can reciprocate in the valve block.

[0021] Preferably, a dryer is provided on one side of the valve block, and the dryer is connected to the gas channel inside the valve block.

[0022] The motor structure for the air suspension air supply unit provided by the utility model includes a valve block, a motor structure and a controller circuit board. Specifically, the motor structure is arranged at the top of the valve block, the motor structure includes a motor body and electrical terminals, the electrical terminals are arranged on the outside of the motor body and connected to the motor body, the electrical terminals are led out from the side of the motor body, the controller circuit board and the motor structure are arranged at the same end of the valve block, and the controller circuit board is connected to the electrical terminals, and the operating state of the motor body is intelligently controlled by the controller circuit board. The controller circuit board and the main body of the motor structure are arranged on the same side, so that the overall structure of the air suspension air supply unit is more compact and the structural size is small, which is convenient for the arrangement of other functional structural parts of the air suspension air supply unit, thereby improving the integration degree of the air suspension air supply unit. A motor end cover is provided at the bottom end of the motor body, and the electrical terminal and the motor end cover are an integrated structure. There is no need to set up connecting structures such as a female end support, the manufacturing process is simple, and the terminal components are reduced. In addition, the electrical terminal path is shortened, the resistance is small, the heat loss is also small, and the heat generation is small.

[0023] Compared with the existing technology, the motor structure for the air suspension air supply unit arranged in the above manner has the electrical terminals led out from the side of the motor body, and the controller circuit board and the motor body are arranged on the same side of the valve block, making the air suspension air supply unit structure more compact. At the same time, the motor end cover and the electrical terminals are an integrated structure to simplify the manufacturing process and shorten the electrical terminal path to reduce resistance and heat loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 This is a schematic structural diagram of the air suspension air supply unit provided by the utility model;

[0026] Figure 2 A cross-sectional view of the air suspension air supply unit provided by the present utility model;

[0027] Figure 3 This is a schematic structural diagram of the motor structure for the air suspension air supply unit provided by the utility model;

[0028] Figure 4 A partial cross-sectional view of the motor structure for the air suspension air supply unit provided by the present invention;

[0029] Figure 5 A cross-sectional view of the electrical terminal provided by the present utility model;

[0030] Figure 6 A top view of the motor housing provided by the present invention;

[0031] Figure 7 A cross-sectional view of the motor structure for the air suspension air supply unit provided by the present invention;

[0032] Figure 8 This is a connection diagram of the motor structure for the air suspension air supply unit provided by the utility model;

[0033] Figure 9 This is a partial enlarged view of the electrical terminal provided by the utility model.

[0034] Reference numerals:

[0035] 01-valve block, 02-motor structure;

[0036] 1-motor body, 101-stator assembly, 102-rotor assembly, 103-commutator assembly, 104-motor shaft;

[0037] 2-electrical terminal, 21-first connection part, 22-second connection part;

[0038] 3-motor end cover, 31-terminal mounting base;

[0039] 4-controller circuit board;

[0040] 5-motor housing, 51-mounting flange;

[0041] 6-first sealing ring;

[0042] 7- second sealing ring;

[0043] 8- third sealing ring;

[0044] 9-terminal sealing structure;

[0045] 10-output shaft structure;

[0046] 11-crank-connecting rod mechanism;

[0047] 12-Dryer. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0050] It should be noted that the directional words such as "upper" and "lower" below are defined based on the drawings in the specification.

[0051] The core of the utility model is to provide a motor structure for an air suspension air supply unit, which makes the structure of the air suspension air supply unit more compact, simplifies the manufacturing process, shortens the path of the electrical terminal 2, reduces resistance, and reduces heat generation.

[0052] Please refer to Figure 1 、 Figure 2 and Figure 3 A motor structure for an air suspension air supply unit includes a valve block 01, a motor structure 02 and a controller circuit board 4.

[0053] Specifically, the motor structure 02 is arranged at the top of the valve block 01. The motor structure 02 includes a motor body 1 and an electrical terminal 2. The electrical terminal 2 is arranged on the outside of the motor body 1 and is connected to the motor body 1. The electrical terminal 2 is led out from the side of the motor body 1. The controller circuit board 4 and the motor structure 02 are arranged at the same end of the valve block 01, and the controller circuit board 4 is connected to the electrical terminal 2. The operating status of the motor body 1 is intelligently controlled by the controller circuit board 4. The controller circuit board 4 and the main body of the motor structure 02 are arranged on the same side, making the overall structure of the air suspension air supply unit more compact and the structural size small, which is convenient for the arrangement of other functional structural parts of the air suspension air supply unit, thereby improving the degree of integration of the air suspension air supply unit. A motor end cover 3 is provided at the bottom end of the motor body 1. The electrical terminal 2 and the motor end cover 3 are an integrated structure. There is no need to set up a female end support and other connecting structures. The manufacturing process is simple, the terminal components are reduced, and the path of the electrical terminal 2 is shortened, the resistance is small, the heat loss is also small, and the heat generation is small.

[0054] The motor end cover 3 is a plastic part. In order to ensure the reliability and durability of the connection, the electrical terminal 2 and the controller circuit board 4 are welded together.

[0055] Compared with the prior art, the motor structure for the air suspension air supply unit arranged in the above manner has the electrical terminal 2 led out from the side of the motor body 1, and the controller circuit board 4 and the motor body are arranged on the same side of the valve block 01, making the air suspension air supply unit structure more compact. At the same time, the motor end cover 3 and the electrical terminal 2 are an integrated structure to simplify the manufacturing process and shorten the path of the electrical terminal 2 to reduce resistance and heat loss.

[0056] Please refer to Figure 2 、 Figure 3 and Figure 4 The motor body 1 also includes a stator assembly 101, a rotor assembly 102 and a commutator assembly 103. The rotor assembly 102 is sleeved on the top of the motor shaft 104 of the motor body 1. The rotor assembly 102 is provided with a coil armature connected to the electrical terminal 2. The stator assembly 101 is sleeved on the outer periphery of the rotor assembly 102. The rotor assembly 102 is rotatably connected to the stator assembly 101. The commutator assembly 103 is sleeved on the outer periphery of the motor shaft 104 and is located below the rotor assembly 102.

[0057] It should be noted that by energizing the coil armature to generate a magnetic field, the rotor assembly 102 is driven to rotate, causing the motor body 1 to rotate synchronously, thereby driving the motor shaft 104 to rotate synchronously to output power.

[0058] The commutator assembly 103 is used to switch between direct current and alternating current, which is described in detail in the prior art.

[0059] Please refer to Figure 5 The electrical terminal 2 includes a first connecting portion 21 and a second connecting portion 22, the first connecting portion 21 is connected to the second connecting portion 22, one end of the first connecting portion 21 is connected to the controller circuit board 4, and one end of the second connecting portion 22 is connected to the coil armature.

[0060] It can be understood that the controller circuit board 4 and the coil armature are connected through the first connecting part 21 and the second connecting part 22, so that the controller circuit board 4 controls the coil armature, and the controller circuit board 4 controls the power supply to the coil armature, thereby controlling the operating state of the motor body 1.

[0061] Furthermore, the first connecting portion 21 is disposed on the outside of the motor body 1 and extends along the direction of the motor shaft 104 . The other ends of the first connecting portion 21 and the second connecting portion 22 are both disposed in the motor end cover 3 .

[0062] It should be noted that the electrical terminal 2 includes a first connecting portion 21 located outside the motor housing 5 and a second connecting portion 22 that connects the first connecting portion 21 to the coil armature inside the motor housing 5. At least a portion of the second connecting portion 22 is enclosed within the motor end cover 3 and extends from the lower end of the motor housing 5 to the outside of the motor housing 5. The lower portion of the first connecting portion 21 is enclosed within the motor end cover 3 and connected to the second connecting portion 22. The extension direction of the first connecting portion 21 is parallel to the direction of the motor shaft 104 of the motor body 1, so that the arrangement of the electrical terminal 2 outside the motor housing 5 is more compact.

[0063] In the above embodiment, the first connecting portion 21 is a cylindrical structure, and the second connecting portion 22 is a U-shaped structure.

[0064] It can be understood that the first connecting portion 21 of the electrical terminal 2 is set as a cylindrical terminal, which is convenient for plugging with external equipment. The second connecting portion 22 of the electrical terminal 2 is set as a rectangular terminal and is a thin strip, which is convenient for bending and welding with the cylindrical terminal. The overall shape of the second connecting portion 22 of the electrical terminal 2 is U-shaped, which is convenient for connecting the first connecting portion 21 and the coil armature inside the motor housing 5 in a limited space.

[0065] Please refer to Figure 3 、 Figure 4 、 Figure 6 and Figure 7 A motor housing 5 is provided on the outside of the motor body 1. The bottom end of the motor housing 5 has a mounting flange 51 that bends and extends outward. A notch is provided on the mounting flange 51. A window communicating with the notch is circumferentially provided at the bottom end of the motor housing 5. A terminal mounting seat 31 is integrated on the motor end cover 3, and the terminal mounting seat 31 is installed in the notch and the window.

[0066] It should be noted that the lower part of the motor housing 5 is bent outward to form a mounting flange 51, the mounting flange 51 is provided with a notch, and the lower part of the motor housing 5 is provided with a window connected to the notch, a part of the motor end cover 3 extends out of the notch and the window to form a terminal mounting seat 31, and a part of the first connecting part 21 and the second connecting part 22 are wrapped inside the terminal seat.

[0067] Among them, other components are arranged around the motor body 1, so the motor housing 5 is optimized. By setting the mounting flange 51, both the mounting function and the high-pressure sealing requirement are met, and there is no interference with other components.

[0068] Please refer to Figure 4 and Figure 8 The main body of the motor end cover 3 is inserted into the motor housing 5, and a first sealing ring 6 is connected between the outer circumference of the main body and the inner circumference of the motor housing 5, and a second sealing ring 7 is connected between the outer circumference of the lower end of the main body and the valve block 01.

[0069] It is understood that the main body of the motor end cap 3 is pluggably connected to the interior of the motor housing 5, and a first sealing ring 6 is connected between the outer circumference of the main body of the motor end cap 3 and the inner circumference of the motor housing 5. This arrangement allows the electrical terminals 2 to be drawn as close as possible to the outer wall of the motor housing 5, thereby further enhancing the compact arrangement of the electrical terminals 2 outside the motor housing 5. However, due to the notch provided in the mounting flange 51 and the window provided in the motor housing 5, the sealing performance of this portion of the motor structure 02 is reduced after it is connected to the valve block 01. Therefore, a first sealing ring 6 is also provided between the main body of the motor end cap 3 and the motor housing 5. This not only prevents water and dust, but also seals high-pressure gas, making the pump more efficient. In addition, a second sealing ring 7 is connected between the lower portion of the main body of the motor end cap 3 and the valve block 01. Both the first and second sealing rings 6 and 7 are large O-rings. Together, the first and second sealing rings 6 and 7 prevent leakage of high-pressure gas.

[0070] Please refer to Figure 9 A positive terminal and a negative terminal are provided on the first connecting portion 21, and a third sealing ring 8 is sleeved on both the positive terminal and the negative terminal. A terminal sealing structure 9 is provided on the upper part of the third sealing ring 8 to press the third sealing ring 8 on the mounting seat of the controller circuit board 4.

[0071] It should be noted that the first connecting portion 21 of the positive and negative terminals of the electrical terminal 2 protruding from the terminal mounting seat 31 is each sleeved with a third sealing ring 8 to further strengthen the seal. A terminal sealing structure 9 is provided on the upper part of the third sealing ring 8 to compress the third sealing ring 8. The terminal sealing structure 9 is fixed to other structures on the air suspension air supply unit. The third sealing ring 8 is a small-sized O-ring.

[0072] The electrical terminal 2 is a copper terminal, which is embedded in the plastic motor end cover 3 and can play a sealing role. At the end of the electrical terminal 2, there are also two reinforced third sealing rings 8 for additional sealing.

[0073] Please refer to Figure 2 、 Figure 4 、 Figure 7 and Figure 8 The output end of the motor shaft 104 is sleeved with an output shaft structure 10 , and the output shaft structure 10 is connected to a crank-connecting rod mechanism 11 , and the crank-connecting rod mechanism 11 can reciprocate in the valve block 01 .

[0074] It can be understood that the controller circuit board 4 intelligently controls the operating state of the coil armature, so that the coil armature generates a magnetic field, thereby driving the rotor assembly 102 to rotate, driving the motor body 1 and the motor shaft 104 to rotate synchronously, and further driving the output shaft structure 10 to rotate synchronously, thereby driving the crank-connecting rod mechanism 11 to reciprocate in the valve block 01, thereby realizing the function of pumping air.

[0075] Please refer to Figure 1 and Figure 2 A dryer 12 is provided on one side of the valve block 01 and is connected to the internal gas channel of the valve block 01 .

[0076] It should be noted that the operating state of the dryer 12 is controlled by the controller so that the dryer 12 dries the gas in the valve block 01 .

[0077] Among them, the rest of the motor structure 02 refers to the existing technology and will not be described in detail in this article.

[0078] In summary, the present invention provides a motor structure for an air suspension air supply unit. After the motor body 1 rotates, it drives the crank-connecting rod mechanism 11 to generate an air pumping function. The present invention optimizes the overall structure of the motor body 1, allowing the electrical terminal 2 to be drawn out from the motor end cap 3 and then extended along the motor shaft 104, thereby making the motor structure 02 compact and achieving reasonable power. Furthermore, a first sealing ring 6 is provided between the main body of the motor end cap 3 and the motor housing 5, cooperating with a second sealing ring 7 between the main body of the motor end cap 3 and the valve block 01 to ensure the overall airtightness of the air suspension air supply unit. Furthermore, the electrical terminal 2 is shorter than the original straight-through terminal, resulting in less heat loss and no abnormal heating. The electrical terminal 2 can be arranged within a limited space, making the overall structure of the air suspension air supply unit more compact. Due to the improvement in the motor structure for the air suspension air supply unit, the overall structure of the air suspension air supply unit is more compact, facilitating the arrangement of other functional components of the air suspension air supply unit. This results in a high degree of integration, good airtightness, a small structural size, and cost advantages for the air suspension air supply unit.

[0079] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0080] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0081] The above describes in detail the motor structure for an air suspension air supply unit provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A motor structure for an air suspension air supply unit, characterized in that: include: Valve block (01); A motor structure (02) is provided at the top end of the valve block (01), the motor structure (02) comprising a motor body (1) and an electrical terminal (2), the electrical terminal (2) being provided on the outside of the motor body (1) and connected to the motor body (1), a motor end cover (3) being provided at the bottom end of the motor body (1), the electrical terminal (2) and the motor end cover (3) being an integrated structure; A controller circuit board (4) and the motor structure (02) are arranged at the same end of the valve block (01), and the controller circuit board (4) is connected to the electrical terminal (2).

2. The motor structure for an air suspension air supply unit according to claim 1, characterized in that: The motor body (1) further comprises a stator assembly (101), a rotor assembly (102) and a commutator assembly (103); the rotor assembly (102) is sleeved on the top end of a motor shaft (104) of the motor body (1); a coil armature connected to the electrical terminal (2) is provided on the rotor assembly (102); the stator assembly (101) is sleeved on the outer periphery of the rotor assembly (102); the rotor assembly (102) is rotatably connected to the stator assembly (101); and the commutator assembly (103) is sleeved on the outer periphery of the motor shaft (104) and is located below the rotor assembly (102).

3. The motor structure for an air suspension air supply unit according to claim 2, characterized in that: The electrical terminal (2) comprises a first connecting portion (21) and a second connecting portion (22), wherein the first connecting portion (21) is connected to the second connecting portion (22), one end of the first connecting portion (21) is connected to the controller circuit board (4), and one end of the second connecting portion (22) is connected to the coil armature.

4. The motor structure for an air suspension air supply unit according to claim 3, characterized in that: The first connecting portion (21) is arranged outside the motor body (1) and extends in the direction of the motor shaft (104); the other ends of the first connecting portion (21) and the second connecting portion (22) are both arranged inside the motor end cover (3).

5. The motor structure for an air suspension air supply unit according to claim 4, characterized in that: The first connecting portion (21) is a cylindrical structure, and the second connecting portion (22) is a U-shaped structure.

6. The motor structure for an air suspension air supply unit according to claim 5, characterized in that: A motor housing (5) is provided on the outside of the motor body (1), the bottom end of the motor housing (5) has a mounting flange (51) that is bent and extended outward, a notch is provided on the mounting flange (51), a window that is connected to the notch is circumferentially provided on the bottom end of the motor housing (5), and a terminal mounting seat (31) is integrated on the motor end cover (3), and the terminal mounting seat (31) is mounted on the notch and the window.

7. The motor structure for an air suspension air supply unit according to claim 6, characterized in that: The main body of the motor end cover (3) is inserted into the motor housing (5), and a first sealing ring (6) is connected between the outer peripheral surface of the main body and the inner peripheral surface of the motor housing (5), and a second sealing ring (7) is connected between the outer peripheral surface of the lower end of the main body and the valve block (01).

8. The motor structure for an air suspension air supply unit according to claim 7, characterized in that: A positive terminal and a negative terminal are provided on the first connecting portion (21), and a third sealing ring (8) is sleeved on each of the positive terminal and the negative terminal. A terminal sealing structure (9) is provided on the upper portion of the third sealing ring (8) to press the third sealing ring (8) onto the mounting seat of the controller circuit board (4).

9. The motor structure for an air suspension air supply unit according to claim 2, characterized in that: An output shaft structure (10) is sleeved on the output end of the motor shaft (104); the output shaft structure (10) is connected to a crank-connecting rod mechanism (11); and the crank-connecting rod mechanism (11) can reciprocate in the valve block (01).

10. The motor structure for an air suspension air supply unit according to any one of claims 1 to 9, characterized in that: A dryer (12) is provided on one side of the valve block (01), and the dryer (12) is connected to the internal gas channel of the valve block (01).