Integrated air compressor and use method

Abstract

The invention relates to an integrated air compressor, and relates to the technical field of two-wheeled vehicle air suspension systems, the integrated air compressor comprises a shell and a base, the bottom of the shell is connected with the base, and a driving assembly is arranged in the shell; a pump chamber is arranged on the top face of the shell, the upper end and the lower end of the pump chamber are communicated with the outside of the shell, a pump chamber end cover is arranged at one communication position, gain cavities are connected to the two sides of the pump chamber, the other ends of the gain cavities are communicated with the outside of the shell, gain cavity end covers are arranged at the communication positions, and an air inlet is formed in the position, close to the edge of one side, of the top face of the shell and communicated with the pump chamber through an air channel. An exhaust port is formed in the top face of the shell and formed in the side, away from the air inlet, of the pump chamber, the air inlet communicates with the gain cavities at the two ends through an air channel, and a valve chamber is arranged between the exhaust port and the air channel. An electric control chamber is arranged in the base, and a PCB is arranged in the electric control chamber. The whole vehicle assembly process is simplified; the sealing performance, the stability and the gas gain efficiency of the system are improved; the size and weight are reduced, and the frame mounting space is saved; the production cost is reduced, and the control response precision is improved.

Description

Technical Field

[0001] This invention relates to the field of air suspension systems for two-wheeled vehicles, and particularly to an integrated air compressor and its usage method. Background Technology

[0002] Air suspension systems replace traditional steel springs with air springs, actively controlling vehicle height and suspension stiffness by adjusting air pressure in the airbags, significantly improving ride comfort and handling in two-wheeled vehicles. Its core mechanism involves an air compressor compressing air, which is then delivered to the air springs via an electronic distribution valve. A controller adjusts system operation based on various signals.

[0003] Current two-wheeled vehicle air suspension systems use a distributed layout, with the air compressor, electronic distribution valve, and controller being independent components. These require external high-pressure air hoses and air / electrical wiring harnesses, which presents the following problems: It has many parts, is complicated to install, occupies a lot of space on the chassis, and has a complex assembly process. The air pipe has many joints, which are prone to loosening and leakage after long-term use, affecting the reliability of the system. The wiring harness has a complex routing, is susceptible to interference, and is prone to poor contact under vibration. The dispersed nature of the components leads to differences in the total length of the air / electric circuit, resulting in fluctuations in control accuracy. Independent housings, brackets, and connectors increase cost and overall vehicle weight; Directly transporting compressed gas results in poor gain and low energy utilization efficiency. Summary of the Invention

[0004] To address the above issues, an integrated air compressor and its usage method are proposed.

[0005] The technical solution of the present invention is: an integrated air compressor, comprising a housing and a base, the bottom of the housing being connected to the base, and a drive assembly being provided inside the housing; The top surface of the housing is provided with a pump chamber, which is connected to the outside of the housing at both the top and bottom ends. One of the connection points is provided with a pump chamber end cover. The two sides of the pump chamber are connected to gain chambers, and the other end of the gain chamber is connected to the outside of the housing. The connection point is provided with a gain chamber end cover. An air inlet is provided near one edge of the top surface of the housing. The air inlet is connected to the pump chamber through an air passage. An exhaust port is provided on the top surface of the housing. The exhaust port is located on the side of the pump chamber away from the air inlet. The air inlet is connected to the two gain chambers through an air passage. A valve chamber is provided between the exhaust port and the air passage. The base has an electrical control room inside, and the electrical control room contains a PCB board.

[0006] Preferably, the external extension of the electrical control room is provided with a power interface; the PCB board has a three-layer layout, with the top layer being the power drive circuit, the middle layer being the main control MCU, and the bottom layer being the power management module.

[0007] Preferably, the outer side of the housing is provided with heat dissipation fins, which are dense heat dissipation fins.

[0008] Preferably, the air inlet is equipped with a filter.

[0009] Preferably, the drive assembly includes a drive motor located at the connection between the pump chamber and the housing. An eccentric wheel is provided in the pump chamber, and the output shaft of the motor is fixedly connected to the central end of the eccentric wheel. The eccentric shaft of the eccentric wheel is rotatably connected to a piston rod. The end of the piston rod away from the eccentric wheel passes through a piston cylinder located in a gain chamber. A one-way valve is provided at the end of the piston rod away from the eccentric wheel.

[0010] Preferably, a sealing ring is provided circumferentially at the end of the piston rod away from the eccentric wheel.

[0011] Preferably, the piston rods are arranged symmetrically along the eccentric axis of the eccentric wheel, and the symmetrical piston rods are connected to each other by clamps.

[0012] Preferably, the output shaft sleeve of the drive motor is provided with a motor bearing, the motor bearing is disposed in the motor bearing sleeve, and the motor bearing sleeve is fixedly disposed in the pump chamber.

[0013] Preferably, the eccentric shaft of the eccentric wheel is rotatably connected to the piston rod via an eccentric wheel bearing.

[0014] A method for using an integrated air compressor includes the following steps: Lifting the vehicle body: The main control MCU receives the lifting command, drives the motor to start, and the air is compressed and enters the gain chamber for optimized pressurization. After passing through the valve in the valve chamber, the high-pressure gas is delivered to the air spring in the vehicle through the exhaust port to inflate it. When the pressure reaches the target value, the motor stops. Lowering the vehicle body: The main control MCU controls the opening of the switching valve in the valve chamber, allowing the high-pressure gas in the air spring to pass through the switching valve and then be slowly discharged from the air passage, thus lowering the vehicle body. Pressure holding state: The switching valve is open, the one-way valve prevents gas backflow, and the probe end of the pressure sensor in the airway monitors in real time. If the pressure is insufficient, the MCU control system starts the motor to replenish the pressure as needed.

[0015] The beneficial effects of this invention are as follows: This invention eliminates the need for external air pipes and wiring harnesses, simplifying the vehicle assembly process; improves system sealing, stability, and gas gain efficiency; reduces volume and weight, saving chassis installation space; lowers production costs and improves control response accuracy; and is suitable for the harsh vibration, waterproof, and heat dissipation environments of two-wheeled vehicles. Attached Figure Description

[0016] Figure 1 This is a perspective view of the integrated air compressor of the present invention; Figure 2 This is a schematic diagram of the shell structure of the present invention; Figure 3 This is a schematic diagram of the base structure of the present invention; Figure 4 This is a top view of the integrated air compressor of the present invention; Figure 5 for Figure 4 Cross-sectional view of AA.

[0017] The component names corresponding to the various reference numerals in the diagram are as follows: 1. Housing; 11. Pump chamber; 111. Pump chamber end cover; 12. Exhaust port; 121. Valve chamber; 13. Gain chamber; 131. Gain chamber end cover; 14. Air passage; 15. Heat dissipation fins; 16. Air inlet; 161. Filter; 2. Base; 21. Electrical control chamber; 22. Power interface; 3. Drive assembly; 31. Drive motor; 311. Motor bearing; 312. Motor bearing sleeve; 32. Piston cylinder; 33. Eccentric wheel; 331. Eccentric wheel bearing; 34. Piston rod; 341. Clamp; 342. Sealing ring; 35. Check valve. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0019] refer to Figure 1 As shown in the figure, this application discloses an integrated air compressor, including a housing 1 and a base 2. The housing 1 and the base 2 are made of aluminum alloy die casting or injection molding and have anodized anti-corrosion treatment on the surface. The bottom of the housing 1 is connected to the base 2 by bolts located at the four corners. A drive assembly 3 is provided inside the housing 1.

[0020] refer to Figure 2 , 3 As shown, the top surface of the housing 1 is provided with a pump chamber 11. The upper and lower ends of the pump chamber 11 are connected to the outside of the housing 1. One of the connection points is provided with a pump chamber end cover 111. The two sides of the pump chamber 11 are connected to gain chambers 13. The other end of the gain chamber 13 is connected to the outside of the housing 1. The connection point is provided with a gain chamber end cover 131. The pump chamber end cover 111 and the gain chamber end cover 131 are used for sealing. The top surface of the housing 1 is provided with an air inlet 16 near one edge. The air inlet 16 is connected to the pump chamber 11 through an air passage 14. The top surface of the housing 1 is provided with an exhaust port 12. The exhaust port 12 is located on the side of the pump chamber 11 away from the air inlet 16. The air inlet 16 is connected to the two end gain chambers 13 through an air passage 14. A valve chamber 121 is provided between the exhaust port 12 and the air passage 14. The valve chamber 121 integrates a pressure sensor, an air inlet valve, an air outlet valve, a switching valve, and an exhaust valve. All of the above are solenoid valves.

[0021] The outer side of the housing 1 is provided with heat dissipation fins 15, which are dense heat dissipation fins that enhance heat dissipation by utilizing the vehicle's air cooling.

[0022] The air inlet 16 is equipped with a filter 161 for filtering impurities and grease from the external air.

[0023] The base 2 has an electrical control chamber 21 inside, and a PCB board inside the electrical control chamber 21. The electrical control chamber 21 is sealed with sealant to prevent moisture. The external extension of the electrical control chamber 21 has a power interface 22. The power interface 22 only retains the power bus interface (connected to the vehicle battery) and the air outlet quick-connect interface (connected to the air spring).

[0024] The PCB board has a three-layer layout with a newly added gain control circuit. The top layer is the power drive circuit (MOSFET drives the solenoid valve, motor and gain module); the middle layer is the main control MCU (receives vehicle speed, height and button signals, and adjusts the gain parameters); and the bottom layer is the power management module (DC-DC conversion, overvoltage / reverse connection protection).

[0025] The PCB board features cableless connections: the solenoid valve coil pins, motor terminals, sensor pins, and gain module interfaces are all soldered to the PCB board via metal pins, eliminating the need for traditional connectors.

[0026] The PCB board only leads out the power supply line (red and black) and the CAN / LIN bus (2 pins) to connect to the vehicle network.

[0027] refer to Figure 4 , 5 As shown, the drive assembly 3 includes a drive motor 31, which is located at the connection between the pump chamber 11 and the housing 1. An eccentric wheel 33 is located inside the pump chamber 11. The output shaft of the motor 31 is fixedly connected to the central end of the eccentric wheel 33. The eccentric shaft of the eccentric wheel 33 is rotatably connected to a piston rod 34. The end of the piston rod 34 away from the eccentric wheel 33 passes through a piston cylinder 32, which is located in the gain chamber 13. A one-way valve 35 is provided at the end of the piston rod 34 away from the eccentric wheel 33. The piston cylinder 32 adopts a reciprocating cylinder piston pressurization design, strictly controlling the dead space of the piston rod 34 at the top of the piston cylinder 32, thereby improving gas pressure stability and utilization.

[0028] A sealing ring 342 is provided circumferentially at the end of the piston rod 34 away from the eccentric wheel 33 to ensure airtightness during operation.

[0029] The piston rods 34 are arranged symmetrically around the eccentric axis of the eccentric wheel 33, and the symmetrical piston rods 34 are fixedly connected to each other by clamps 341.

[0030] The output shaft of the drive motor 31 is provided with a motor bearing 311. The outer side of the motor bearing 311 is located in the motor bearing sleeve 312, and the outer side of the motor bearing sleeve 312 is fixedly located on the inner wall of the pump chamber 11.

[0031] The eccentric shaft of the eccentric wheel 33 is rotatably connected to the piston rod 34 via the eccentric wheel bearing 331.

[0032] A method for using an integrated air compressor includes the following steps: Lifting the vehicle body: The main control MCU receives the lifting command and drives the motor 31 to start. After the air is compressed, it enters the gain chamber 13 for optimized pressurization. After passing through the valve in the valve chamber 121, the high-pressure gas is delivered to the air spring in the vehicle through the exhaust port 12 to inflate it. When the pressure reaches the target value, the motor 31 stops. Lowering the vehicle body: The main control MCU controls the opening of the switching valve in the valve chamber 121, so that the high-pressure gas in the air spring passes through the switching valve to the air passage 14, and is slowly discharged from the air passage 14, thus lowering the vehicle body. Pressure holding state: The switching valve is open, the one-way valve 35 prevents gas backflow, and the detection end of the pressure sensor in the air passage 14 monitors in real time. If the pressure is insufficient, the MCU control system starts the motor 31 to replenish the pressure as needed.

[0033] The beneficial effects are: This invention eliminates the need for external air hoses and wiring harnesses, simplifying the vehicle assembly process; improves system sealing, stability, and gas gain efficiency; reduces size and weight, saving chassis installation space; lowers production costs and improves control response accuracy; and is suitable for the harsh vibration, waterproof, and heat dissipation environments of two-wheeled vehicles.

[0034] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, 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, and therefore should not be construed as a limitation of the present invention. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral connection.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the present invention, and these improvements and additions should also be considered within the scope of protection of the present invention. Any modifications, alterations, and equivalent changes made by those skilled in the art based on the above-disclosed technical content without departing from the spirit and scope of the present invention are equivalent embodiments of the present invention. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An integrated air compressor, characterized in that, It includes a housing (1) and a base (2), with the bottom of the housing (1) connected to the base (2), and a drive assembly (3) provided inside the housing (1); The top surface of the housing (1) is provided with a pump chamber (11). The upper and lower ends of the pump chamber (11) are connected to the outside of the housing (1). One of the connection points is provided with a pump chamber end cap (111). The pump chamber (11) is connected to gain chambers (13) on both sides. The other end of the gain chamber (13) is connected to the outside of the housing (1). The connection point is provided with a gain chamber end cap (131). The top surface of the housing (1) is provided with an air inlet (16) near one edge. The air inlet (16) is connected to the pump chamber (11) through an air passage (14). The top surface of the housing (1) is provided with an exhaust port (12). The exhaust port (12) is located on the side of the pump chamber (11) away from the air inlet (16). The air inlet (16) is connected to the two end gain chambers (13) through an air passage (14). A valve chamber (121) is provided between the exhaust port (12) and the air passage (14). The base (2) has an electrical control room (21) inside, and the electrical control room (21) has a PCB board inside.

2. The integrated air compressor according to claim 1, characterized in that, The external extension of the electrical control room (21) is provided with a power interface (22); the PCB board has a three-layer layout, with the top layer being the power drive circuit, the middle layer being the main control MCU, and the bottom layer being the power management module.

3. The integrated air compressor according to claim 1, characterized in that, The outer side of the housing (1) is provided with heat dissipation fins (15), which are dense heat dissipation fins.

4. The integrated air compressor according to claim 1, characterized in that, The air inlet (16) is equipped with a filter (161).

5. The integrated air compressor according to claim 1, characterized in that, The drive assembly (3) includes a drive motor (31), which is located at the connection between the pump chamber (11) and the housing (1). An eccentric wheel (33) is provided in the pump chamber (11). The output shaft of the motor (31) is fixedly connected to the shaft end of the eccentric wheel (33). The eccentric shaft of the eccentric wheel (33) is rotatably connected to the piston rod (34). The end of the piston rod (34) away from the eccentric wheel (33) is inserted into the piston cylinder (32). The piston cylinder (32) is located in the gain chamber (13). A one-way valve (35) is provided at the end of the piston rod (34) away from the eccentric wheel (33).

6. The integrated air compressor according to claim 5, characterized in that, The piston rod (34) is provided with a sealing ring (342) circumferentially at the end away from the eccentric wheel (33).

7. The integrated air compressor according to claim 5, characterized in that, The piston rod (34) is arranged symmetrically along the eccentric axis of the eccentric wheel (33), and the symmetrical piston rods (34) are connected to each other by clamps (341).

8. The integrated air compressor according to claim 5, characterized in that, The output shaft sleeve of the drive motor (31) is provided with a motor bearing (311), the motor bearing (311) is located in the motor bearing sleeve (312), and the motor bearing sleeve (312) is fixedly located in the pump chamber (11).

9. The integrated air compressor according to claim 5, characterized in that, The eccentric shaft of the eccentric wheel (33) is rotatably connected to the piston rod (34) via the eccentric wheel bearing (331).

10. A method of using an integrated air compressor as described in any one of claims 1-9, characterized in that, The steps are as follows: Lifting the vehicle body: The main control MCU receives the lifting command and drives the motor (31) to start. After the air is compressed, it enters the gain chamber (13) for optimized pressurization. After passing through the valve in the valve chamber (121), the high-pressure gas is delivered to the air spring in the vehicle through the exhaust port (12) to inflate. When the pressure reaches the target value, the motor (31) stops. Lowering the vehicle body: The main control MCU controls the opening of the switching valve in the valve chamber (121), so that the high-pressure gas in the air spring passes through the switching valve to the air passage (14), and is slowly discharged from the air passage (14), causing the vehicle body to lower; Pressure holding state: The switching valve is open, the one-way valve (35) prevents gas backflow, and the probe end of the pressure sensor in the air passage (14) monitors in real time. If the pressure is insufficient, the MCU control system starts the motor (31) to replenish the pressure as needed.

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