An integrated device of air compressor and steering assist pump

By integrating the air compressor with the power steering pump and adopting a synchronous operation design and oil-free lubrication technology, the problems of large space occupation, high weight and energy redundancy of traditional systems are solved, achieving the effects of reduced space, weight and energy consumption.

CN224496744UActive Publication Date: 2026-07-14NANJING DISHENG POWER TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DISHENG POWER TECH CO LTD
Filing Date
2025-09-15
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional vehicle-mounted air compressors and power steering pumps are independent systems, resulting in large space occupation, high weight, redundant energy consumption, and risks of oil contamination, as well as low energy utilization.

Method used

The air compressor is integrated with the power steering pump, and a synchronous operation design is adopted. It is driven by a single motor with dual output shafts, and oil-free lubrication is achieved by combining an oxide coating. Energy utilization is improved by sharing a cooling channel and a liquid cooling system.

Benefits of technology

It reduces space occupation by 40%, weight by 25%, and energy consumption by 15%-20%, achieving oil-free lubrication, making it suitable for new energy vehicles and improving energy utilization and system stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to vehicle braking system and steering assist technology field especially relates to a kind of integrated device of air compressor and steering assist pump. Among them, static disc subassembly is fixed in shell, motor subassembly is set in motor shaft, shell is connected to the one end of shell, the one end of motor shaft is sequentially passed through shell and shell and is connected to clutch, clutch can attract dynamic disc subassembly and drive dynamic disc subassembly rotation, to make dynamic disc subassembly and static disc subassembly cooperation compressed air, the other end of motor shaft is connected to assist pump through shell, the outer surface of dynamic disc subassembly and the outer surface of static disc subassembly are all provided with oxidation coating. Compared with prior art, the device integrates air compressor and steering assist pump, reduces space occupation, makes air compressor and steering assist pump synchronous operation, improves energy utilization, the outer surface of dynamic disc subassembly and the outer surface of static disc subassembly are all provided with oxidation coating, realize air compressor oil-free lubrication, avoid air compressor to produce oil dirt.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle braking system steering technology, and in particular to an integrated device of an air compressor and a power steering pump. Background Technology

[0002] Traditional vehicle-mounted air compressors and power steering pumps are usually independent systems, which occupy a lot of space, are heavy, and have redundant energy consumption. Traditional air compressors mostly use oil lubrication, which poses a risk of oil contamination. Power steering pumps need to continuously consume power, while air compressors work intermittently. The independent operation of the two leads to low energy utilization.

[0003] Therefore, there is an urgent need for an integrated device that combines an air compressor and a power steering pump to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to propose an integrated device for an air compressor and a power steering pump, which can integrate the air compressor and the power steering pump, reduce space occupation, enable the air compressor and the power steering pump to operate synchronously, improve energy utilization, and avoid oil contamination of the air compressor.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An integrated device for an air compressor and a power steering pump includes: an air compressor, a power steering pump, and a drive unit. The air compressor includes a housing, a moving plate assembly, and a stationary plate assembly. The stationary plate assembly (3) is fixed inside the housing. The drive unit includes a housing, a motor assembly, a motor shaft, and a clutch. The motor assembly, the motor shaft, and the clutch are all disposed inside the housing, and the motor assembly is sleeved on the motor shaft. The housing is connected to one end of the housing. One end of the motor shaft passes through the housing and the housing in sequence and is connected to the clutch. The clutch can engage the moving plate assembly and drive the moving plate assembly to rotate, so that the moving plate assembly and the stationary plate assembly cooperate to compress air. The other end of the motor shaft passes through the housing and is connected to the power steering pump. The outer surfaces of the moving plate assembly and the stationary plate assembly are both provided with an oxide coating.

[0007] As a preferred technical solution of the above-mentioned integrated device of air compressor and power steering pump, the air compressor further includes a plurality of eccentric pins, which are circumferentially spaced between the moving plate assembly and the stationary plate assembly. The motor assembly drives the motor shaft to rotate, thereby moving the moving plate assembly. The compression motion of the moving plate assembly relative to the stationary plate assembly is achieved by the relative rotation of the eccentric pins.

[0008] As a preferred technical solution for the aforementioned integrated device of an air compressor and a power steering pump, the eccentric pin has a hollow structure.

[0009] As a preferred technical solution of the above-mentioned integrated device of air compressor and power steering pump, the integrated device of air compressor and power steering pump further includes a drive plate, one end of which is connected to the clutch, and the other end of which is connected to the moving plate assembly.

[0010] As a preferred technical solution of the above-mentioned integrated device of air compressor and power steering pump, the integrated device of air compressor and power steering pump further includes a drive shaft, the other end of the drive disc is sleeved on one end of the drive shaft, and the moving disc assembly is sleeved on the other end of the drive shaft.

[0011] As a preferred embodiment of the aforementioned integrated device for an air compressor and a power steering pump, the integrated device further includes a counterweight disposed on the drive disc.

[0012] As a preferred technical solution of the above-mentioned integrated device of air compressor and power steering pump, the drive component further includes a bearing, the outer ring of the bearing being fixedly connected to the housing, and the inner ring of the bearing being fixedly connected to the motor shaft.

[0013] As a preferred technical solution for the aforementioned integrated device of air compressor and power steering pump, both the housing and the outer shell are made of aluminum alloy.

[0014] As a preferred technical solution of the above-mentioned integrated device of air compressor and power steering pump, the integrated device of air compressor and power steering pump further includes a base plate, and the housing and the outer shell are both disposed on the base plate.

[0015] As a preferred technical solution for the aforementioned integrated device of an air compressor and a power steering pump, the base plate is an anti-slip pad.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides an integrated device for an air compressor and a power steering pump. The integrated device includes an air compressor, a power steering pump, and a drive unit. The air compressor includes a housing, a moving plate assembly, and a stationary plate assembly. The stationary plate assembly is fixed inside the housing. The drive unit includes a housing, a motor assembly, a motor shaft, and a clutch. The motor assembly, motor shaft, and clutch are all housed within the housing, with the motor assembly fitted onto the motor shaft. The housing is connected to one end of the housing. One end of the motor shaft passes through the housing and the housing in sequence and is connected to the clutch. The clutch can engage the moving plate assembly and drive it to rotate, allowing the moving plate assembly and the stationary plate assembly to work together to compress air. The other end of the motor shaft passes through the housing and is connected to the power steering pump. Both the outer surfaces of the moving plate assembly and the stationary plate assembly are coated with an oxide coating. Compared to existing technologies, this device integrates the air compressor and the power steering pump, reducing space occupation, enabling synchronous operation of the air compressor and the power steering pump, improving energy utilization, and providing an oxide coating on the outer surfaces of both the moving plate assembly and the stationary plate assembly, achieving oil-free lubrication of the air compressor and preventing oil contamination. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This is an exploded view of the integrated device of air compressor and power steering pump provided in this embodiment of the utility model.

[0020] In the picture:

[0021] 1. Power pump; 2. Moving disc assembly; 3. Stationary disc assembly; 4. Motor assembly; 5. Eccentric pin; 6. Clutch; 7. Drive disc; 8. Drive shaft; 9. Base plate; 10. Common housing. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0026] like Figure 1 As shown, this utility model provides an integrated device for an air compressor and a power steering pump. The integrated device for an air compressor and a power steering pump includes: an air compressor, a power steering pump 1, and a drive component. The air compressor includes a housing, a moving plate assembly 2, and a stationary plate assembly 3.

[0027] Specifically, the stationary disc assembly 3 is fixed inside the housing. The driving components include the housing, motor assembly 4, motor shaft, and clutch 6. The motor assembly 4, motor shaft, and clutch 6 are all housed within the housing, with the motor assembly 4 fitted onto the motor shaft. The housing is connected to one end of the housing. One end of the motor shaft passes through the housing and is connected to the clutch 6. The clutch 6 engages the moving disc assembly 2 and drives it to rotate, allowing the moving disc assembly 2 and the stationary disc assembly 3 to work together to compress air. The other end of the motor shaft passes through the housing and is connected to the power steering pump 1. Both the outer surfaces of the moving disc assembly 2 and the stationary disc assembly 3 are coated with an oxide coating. Compared to existing technologies, this device integrates the air compressor and the power steering pump 1, reducing space occupation and enabling synchronous operation of the air compressor and power steering pump 1, thus improving energy utilization. The oxide coating on the outer surfaces of both the moving disc assembly 2 and the stationary disc assembly 3 achieves oil-free lubrication of the air compressor, preventing oil contamination. It should be noted that this device reduces space occupancy by 40% and weight by 25% compared to existing technologies, making it suitable for the compact layout of new energy vehicle chassis. It adopts a single-motor, dual-output-shaft design, driving the air compressor's moving plate assembly 2 and the power booster pump 1 synchronously. Through energy recovery and dynamic control, overall energy consumption is reduced by 15%-20%. It should also be noted that in low-load mode, clutch 6 separates the moving plate assembly 2 from the motor shaft, stopping the air compressor, and motor assembly 4 prioritizes driving the power booster pump 1. In high-load mode, the moving plate assembly 2, driven by clutch 6, enables the air compressor to operate, coaxially driving the power booster pump 1.

[0028] Furthermore, the booster pump 1 uses self-lubricating composite material gears, which can achieve oil-free operation of the entire system. The oil-free design avoids pollution and meets the clean air requirements of fuel cell vehicles.

[0029] Optionally, the air compressor also includes several eccentric pins 5, which are circumferentially spaced between the moving plate assembly 2 and the stationary plate assembly 3. The motor assembly 4 drives the motor shaft to rotate, thereby moving the moving plate assembly 2. The compression motion of the moving plate assembly 2 relative to the stationary plate assembly 3 is achieved through the relative rotation of the eccentric pins 5. Specifically, the air compressor is provided with four eccentric pins 5, which are respectively inserted at the four corners of the moving plate assembly 2 and the stationary plate assembly 3, which can improve the stability of the moving plate assembly 2 during the movement.

[0030] Furthermore, the outer shell and housing are integrally formed to form a common housing 10. The common housing 10 has a connected cooling channel inside, which enables the air compressor scroll chamber and the booster pump 1 hydraulic chamber to share the cooling water circuit. The liquid cooling system can dissipate heat for both at the same time, improving the overall heat dissipation efficiency of the liquid cooling system by 50% and extending the service life of the components. The internal cooling channel is circulated and connected to the external water tank. The coolant flow rate is regulated by an electronic water pump, which can adjust the heat dissipation efficiency.

[0031] Furthermore, the eccentric pin 5 has a hollow structure, covering the outer wall of the air compressor cavity and the motor cavity, forming an internal cooling channel.

[0032] Furthermore, the integrated device of the air compressor and the power steering pump also includes a drive disc 7, one end of which is connected to the clutch 6, and the other end of which is connected to the moving disc assembly 2, enabling power output by transmitting torque while optimizing power transmission efficiency. Further still, the integrated device of the air compressor and the power steering pump also includes a drive shaft 8, with the other end of the drive disc 7 fitted onto one end of the drive shaft 8, and the moving disc assembly 2 fitted onto the other end of the drive shaft 8.

[0033] Optionally, the integrated unit of the air compressor and the power steering pump also includes a counterweight. The counterweight is located on the drive disc 7 and can balance the weight distribution, prevent tipping, reduce vibration, reduce energy consumption, and improve the stability and safety of the drive disc 7.

[0034] Optionally, the drive component also includes bearings, with the outer ring of the bearing fixedly connected to the housing and the inner ring of the bearing fixedly connected to the motor shaft. Specifically, the drive component has two bearings, respectively located at both ends of the housing, with the motor shaft passing through the two bearings, which can reduce the friction of the motor shaft.

[0035] Optionally, both the housing and the outer casing are made of aluminum alloy, which is lightweight, high-strength, and has good corrosion resistance, thus improving the service life of the housing and the outer casing.

[0036] Optionally, the integrated unit of the air compressor and the power steering pump also includes a base plate 9, on which both the housing and the outer casing are mounted, improving the overall integrity and stability of the unit. Furthermore, the base plate 9 serves as an anti-slip pad to prevent the unit from sliding.

[0037] Optionally, the integrated unit of the air compressor and the power steering pump also includes an intelligent control unit for dynamically allocating the power of the motor assembly 4 according to the operating conditions, prioritizing the power steering needs.

[0038] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An integrated device for an air compressor and a power steering pump, characterized in that, include: An air compressor, a booster pump (1), and a drive unit are provided. The air compressor includes a housing, a moving disc assembly (2), and a stationary disc assembly (3). The stationary disc assembly (3) is fixed inside the housing. The drive unit includes a housing, a motor assembly (4), a motor shaft, and a clutch (6). The motor assembly (4), the motor shaft, and the clutch (6) are all located inside the housing, and the motor assembly (4) is fitted onto the motor shaft. The housing is connected to one end of the housing. One end of the motor shaft passes through the housing and the housing in sequence and is connected to the clutch (6). The clutch (6) can engage the moving disc assembly (2) and drive the moving disc assembly (2) to rotate so that the moving disc assembly (2) and the stationary disc assembly (3) cooperate to compress air. The other end of the motor shaft passes through the housing and is connected to the booster pump (1). The outer surfaces of the moving disc assembly (2) and the stationary disc assembly (3) are both provided with an oxide coating.

2. The integrated device for an air compressor and a power steering pump according to claim 1, characterized in that, The air compressor also includes several eccentric pins (5), which are spaced apart circumferentially between the moving plate assembly (2) and the stationary plate assembly (3). The motor assembly (4) drives the motor shaft to rotate and move the moving plate assembly (2). The compression motion of the moving plate assembly (2) relative to the stationary plate assembly (3) is achieved by the relative rotation of the eccentric pins (5).

3. The integrated device for an air compressor and a power steering pump according to claim 2, characterized in that, The eccentric pin (5) has a hollow structure.

4. The integrated device for an air compressor and a power steering pump according to claim 1, characterized in that, The integrated device of the air compressor and the power steering pump also includes a drive disc (7), one end of which is connected to the clutch (6), and the other end of which is connected to the moving disc assembly (2).

5. The integrated device for an air compressor and a power steering pump according to claim 4, characterized in that, The integrated device of the air compressor and the power steering pump also includes a drive shaft (8), the other end of the drive disc (7) is sleeved on one end of the drive shaft (8), and the moving disc assembly (2) is sleeved on the other end of the drive shaft (8).

6. The integrated device for an air compressor and a power steering pump according to claim 4, characterized in that, The integrated device of the air compressor and the power steering pump also includes a counterweight, which is disposed on the drive disc (7).

7. An integrated device for an air compressor and a power steering pump according to any one of claims 1-6, characterized in that, The drive component also includes a bearing, the outer ring of which is fixedly connected to the housing, and the inner ring of which is fixedly connected to the motor shaft.

8. An integrated device for an air compressor and a power steering pump according to any one of claims 1-6, characterized in that, Both the housing and the outer shell are made of aluminum alloy.

9. An integrated device for an air compressor and a power steering pump according to any one of claims 1-6, characterized in that, The integrated device of the air compressor and the power steering pump also includes a base plate (9), and the housing and the outer shell are both disposed on the base plate (9).

10. The integrated device for an air compressor and a power steering pump according to claim 9, characterized in that, The base plate (9) is an anti-slip pad.