A housing structure and integrated air compression device

Abstract

The application relates to the technical field of air compression, in particular to a shell structure and an integrated air compression device, wherein an accommodating cavity, an air compression cavity and a drying cavity are formed in the shell structure. The air compression cavity is communicated with the accommodating cavity. The drying cavity is communicated with the air compression cavity. An air inlet and an air outlet are formed on the side wall of the shell structure. When air flows into the accommodating cavity from the air inlet, the air can be buffered due to the certain volume of the accommodating cavity, so that the noise is reduced. The air in the accommodating cavity flows to the air compression cavity, air is compressed by using an air compression assembly, and water vapor in the compressed air is removed by using a drying agent. The dried compressed air is discharged from the drying cavity through the air outlet. The shell structure is integrally formed, replaces the existing crankcase and the drying tank, and the sealing ring is not needed at the communicating position, and the flexible pipeline is not needed for communication, so that the possibility of sealing failure is greatly reduced.

Description

Technical Field

[0001] This application relates to the field of air compression technology, and in particular to a housing structure and an integrated air compression device. Background Technology

[0002] Air compressors are widely used in vehicle air suspension systems. Their core function is to compress air through a drive motor, transmission components, and piston assembly, and then deliver the compressed high-pressure gas to a drying tank for drying, ultimately supplying air to air springs or other pneumatic components.

[0003] Existing air compression devices include a housing, a piston, a drive motor, and a drying tank. A transmission assembly is installed inside the housing, the drive motor is mounted on one side of the housing, and the piston is located inside the housing. The transmission assembly is connected to the output shaft of the drive motor and the piston. The drive motor drives the transmission assembly, which in turn moves the piston, compressing air. The drying tank is connected to the interior of the housing. The compressed air is delivered into the drying tank for drying.

[0004] The existing technical solutions described above have the following drawbacks: Sealing rings are required at the connection points between the housing of the existing compression device and the tank body of the drying tank. During long-term use, these sealing rings are prone to aging, leading to sealing failure. Utility Model Content

[0005] To avoid sealing failure, this application provides a housing structure and an integrated air compression device.

[0006] The primary objective of this application is to provide a shell structure, employing the following technical solution: A shell structure having an internally formed receiving cavity, an air compression cavity, and a drying cavity; the receiving cavity is used to receive a transmission component; the air compression cavity is connected to the receiving cavity and is used to receive an air compression component that works with the transmission component; the drying cavity is connected to the air compression cavity and is used to hold a desiccant. The shell structure has an air inlet and an exhaust outlet; the air inlet is connected to the receiving cavity; the exhaust outlet is connected to the drying cavity; air can flow in from the air inlet, pass through the receiving cavity, the air compression cavity and the drying cavity in sequence, and then be discharged from the exhaust outlet.

[0007] By adopting the above technical solution, when air flows into the receiving cavity from the air inlet, the cavity's volume buffers the incoming air, reducing airflow impact and noise. The air within the receiving cavity flows to the air compression chamber, where the air compression assembly compresses the air, converting atmospheric pressure air into high-pressure air. As the high-pressure air flows through the drying chamber, a desiccant removes water vapor from the compressed gas. The dried compressed gas is then discharged from the drying chamber through the exhaust port. The integrated shell structure replaces the existing crankcase and drying tank, eliminating the need for sealing rings or flexible piping at connections, significantly reducing the likelihood of seal failure, extending service life, and improving the reliability and stability of compression and drying operations. Furthermore, the overall layout is more organized and integrated, occupying less space and greatly improving space utilization.

[0008] This application further specifies that: there are two air compression chambers, formed on opposite sides of the receiving chamber, and respectively connected to the receiving chamber; The drying chamber is formed on the same side as the receiving chamber and the air compression chamber.

[0009] By adopting the above technical solutions, the overall layout is more reasonable and the space utilization rate is higher.

[0010] The present application further comprises: a first flow channel, a second flow channel and a confluence channel formed inside the shell structure; one end of the first flow channel is connected to one of the air compression chambers; one end of the second flow channel is connected to another air compression chamber; one end of the confluence channel is connected to the other end of the first flow channel and the other end of the second flow channel respectively, and the other end is connected to one end of the drying chamber; the other end of the drying chamber is connected to the exhaust port.

[0011] By adopting the above technical solution, compressed air can be efficiently introduced into the drying chamber for drying, and the compressed gas can flow through the entire drying chamber, ensuring the drying effect.

[0012] This application further includes: The first check valve is installed inside the exhaust port.

[0013] By adopting the above technical solution, the first one-way valve prevents the compressed gas discharged from the drying chamber from flowing back.

[0014] This application further specifies that: multiple heat dissipation fins are uniformly formed on the outer wall of the shell structure along the length direction.

[0015] By adopting the above technical solution, each air compression component generates heat during operation, and the heat dissipation fins are used to dissipate heat from the air compression chamber and the drying chamber. External airflow carries away heat as it passes through the gaps between adjacent heat dissipation fins, resulting in good heat dissipation effect and high heat dissipation efficiency.

[0016] This application further specifies that: a first mounting hole and a second mounting hole are formed on the housing structure; the first mounting hole is used to install a drive component that cooperates with the transmission assembly; and the second mounting hole is used to install an air circuit box.

[0017] By adopting the above technical solution, it is convenient to disassemble, replace, and assemble the housing structure, drive components, and air circuit box.

[0018] The second objective of this application is to provide an integrated air compression device, which adopts the following technical solution: An integrated air compressor device includes a housing structure, a drive component, a transmission assembly, and an air compression assembly; The drive component is fixedly connected to one side of the housing structure; The transmission assembly is installed inside the receiving cavity and connected to the output shaft of the drive component; The air compression assembly is installed inside the air compression chamber and connected to the transmission assembly to compress air.

[0019] By adopting the above technical solution, the driving component can drive the transmission component to move, thereby driving the air compression component to work, so as to achieve the purpose of compressing air.

[0020] This application further includes: The air passage box is installed on the other side of the housing structure; The solenoid valve assembly is installed inside the air circuit box and connected to the exhaust port on the housing structure; the solenoid valve assembly is used to connect with the high-pressure air tank used in conjunction with the integrated air compressor; the solenoid valve assembly is also used to connect with the air spring used in conjunction with the integrated air compressor. The controller is installed inside the pneumatic circuit box and is connected to the solenoid valve assembly and the drive unit, respectively. An electrical connector, installed outside the gas circuit box, connects to the controller.

[0021] This application further specifies that the transmission assembly includes: The eccentric wheel is connected to the output shaft of the drive component. The connecting rod is rotatably connected at one end to the eccentric wheel. The air compression assembly includes: The cylinder block is installed inside the air compression chamber; The piston is slidably mounted in the cylinder along the cylinder's axis and is rotatably connected to the end of the connecting rod away from the eccentric wheel. The valve cover is installed on the end of the cylinder block away from the eccentric wheel; The second check valve is installed on the valve cover; when the piston compresses air, the second check valve is used to connect the inside of the cylinder with the air compression chamber; when the piston returns to its original position, the second check valve is used to isolate the inside of the cylinder from the air compression chamber. The third check valve is installed on the piston; when the piston compresses air, the third check valve isolates the inside of the cylinder from the receiving cavity; when the piston returns to its original position, the third check valve connects the inside of the cylinder to the receiving cavity.

[0022] By employing the above technical solution, the driving component drives the eccentric wheel to rotate, which in turn drives two pistons to alternately compress air via two connecting rods. The second and third one-way valves restrict the unidirectional flow of air.

[0023] This application further specifies that: the shell structure also has a backflush inlet and a backflush outlet; the backflush inlet is connected to the end of the drying chamber near the exhaust port; the backflush outlet is connected to the air compression chamber; Also includes: The backflush air passage is formed on the side of the air passage box near the shell structure, with one end connected to the backflush inlet; The backflush inlet is formed on the outer wall of the air passage box and is connected to the other end of the backflush air passage through a solenoid valve assembly.

[0024] By adopting the above technical solution, the backflushing gas can be a high-temperature gas, which flows sequentially into the drying chamber through the backflushing inlet, solenoid valve assembly, backflushing gas path, and backflushing inlet to backflush the desiccant, causing it to dehydrate and regenerate. Afterwards, the backflushing gas flows out of the shell structure through the backflushing outlet. The solenoid valve assembly controls the connection between the drying chamber and the external atmospheric pressure environment, enabling the saturated moisture in the desiccant to be discharged, thus extending the effective service life of the desiccant.

[0025] In summary, the beneficial technical effects of this application are as follows: 1. When air flows into the receiving chamber from the inlet, the chamber's volume buffers the incoming air, reducing airflow impact and noise. After flowing into the air compression chamber, the air is compressed by the piston into compressed gas. As the compressed gas flows through the drying chamber, a desiccant removes water vapor. The dried compressed gas is then discharged from the drying chamber through the exhaust port. The integrated shell structure replaces the existing crankcase, cylinder block, and dryer tank. No sealing rings or flexible piping are needed at the connection points, significantly reducing the likelihood of seal failure, extending service life, and improving the reliability and stability of compression and drying operations. Furthermore, the overall layout is more organized and integrated, occupying less space and greatly improving space utilization, thus reducing the overall cost of the device.

[0026] 2. There are two air compression chambers, located on opposite sides of the receiving chamber and connected to it respectively. The drying chamber is located on the same side as the receiving chamber and the air compression chamber. The overall layout is more rational and makes better use of space.

[0027] 3. Backflush gas is used to backflush the desiccant, causing it to dehydrate and regenerate. A solenoid valve assembly controls the connection between the drying chamber and the external atmospheric pressure environment, allowing saturated moisture in the desiccant to be discharged, thus extending its effective service life. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of one embodiment of the shell structure; Figure 2 yes Figure 1 A schematic diagram of the shell structure from another perspective; Figure 3 yes Figure 1 The diagram shows the internal structure of the shell structure. Figure 4 yes Figure 1 A schematic diagram of the internal structure of another embodiment of the shell structure shown; Figure 5 This is a schematic diagram of an embodiment of an integrated air compression device; Figure 6 yes Figure 5 A schematic diagram of the integrated air compressor unit from another perspective; Figure 7 This is a schematic diagram of the combined structure of the drive component and the eccentric wheel.

[0029] Reference numerals: 100, shell structure; 110, receiving cavity; 111, slide groove; 120, air compression cavity; 130, drying cavity; 131, desiccant; 132, guide plate; 1321, flow obstruction section; 141, air inlet; 142, backflush inlet; 150, exhaust port; 161, first flow channel; 162, second flow channel; 163, confluence channel; 170, first one-way valve; 180, heat dissipation fins; 191, first mounting hole; 192, second mounting hole; 193, backflush outlet; 210, transmission assembly; 211, eccentric wheel; 2111, slide rod; 212, connecting rod; 213, telescopic rod; 220, air compression assembly; 221, cylinder block; 222, piston; 223, valve cover; 230, drive component; 310, air passage box; 320, electrical connector. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0031] Reference Figure 1 , Figure 2 and Figure 3This application discloses a housing structure 100, in which a receiving cavity 110, an air compression cavity 120, and a drying cavity 130 are formed inside the housing structure 100. The receiving cavity 110 is used to receive a transmission assembly 210. The air compression cavity 120 is connected to the receiving cavity 110 and is used to receive an air compression assembly 220 that works with the transmission assembly 210. The drying cavity 130 is connected to the air compression cavity 120 and is used to hold a desiccant 131. An air inlet 141 and an air outlet 150 are formed on the side wall of the housing structure 100. The air inlet 141 is connected to the receiving cavity 110. The air outlet 150 is connected to the drying cavity 130. Air can flow in from the air inlet 141, pass through the receiving cavity 110, the air compression cavity 120, and the drying cavity 130 in sequence, and then be discharged from the air outlet 150. When air flows into the receiving cavity 110 from the air inlet 141, the cavity 110, with its certain volume, buffers the airflow, reducing airflow impact and noise. The air in the receiving cavity 110 flows to the air compression cavity 120, where the air compression assembly 220 compresses the air, converting atmospheric pressure air into high-pressure air. As the high-pressure air flows through the drying cavity 130, the desiccant 131 removes water vapor from the compressed gas. The dried compressed gas is then discharged from the drying cavity 130 through the exhaust port 150. The shell structure 100 is integrally formed, replacing the existing crankcase housing and drying tank housing. No sealing rings or flexible pipes are needed at the connection points, significantly reducing the possibility of seal failure, extending service life, and improving the reliability and stability of compression and drying operations. Simultaneously, the overall layout is more organized, more integrated, and occupies less space, greatly improving space utilization. In addition, the heat generated by the air compression chamber 120 can be transferred to the drying chamber 130, which can heat the desiccant 131, thus facilitating the recycling of the desiccant 131.

[0032] It should be noted that desiccant 131 can be a solid desiccant such as silica gel or molecular sieve.

[0033] In one embodiment, such as Figure 3 As shown, there are two air compression chambers 120, formed on opposite sides of the receiving chamber 110, and each communicating with the receiving chamber 110. It should be noted that there are also two air compression assemblies 220, installed within each of the two air compression chambers 120 in a one-to-one correspondence. Compared to a single air compression chamber 120, the two air compression assemblies 220 work alternately, improving air compression efficiency and making them suitable for high-pressure, high-displacement operating conditions. The drying chamber 130 is formed on the common side of the receiving chamber 110 and the two air compression chambers 120. The overall layout is more rational and makes better use of space.

[0034] Reference Figure 1 and Figure 3In one embodiment, the interior of the housing structure 100 is formed with a first drainage channel 161, a second drainage channel 162, and a confluence channel 163. One end of the first drainage channel 161 is connected to one of the air compression chambers 120. One end of the second drainage channel 162 is connected to the other air compression chamber 120. One end of the confluence channel 163 is connected to the other ends of the first drainage channel 161 and the second drainage channel 162, respectively, and the other end is connected to one end of the drying chamber 130. The other end of the drying chamber 130 is connected to the exhaust port 150. Compressed gas from the air compression chamber 120 flows into the drying chamber 130 after passing through the first drainage channel 161, the second drainage channel 162, and the confluence channel 163 in sequence. In this way, compressed air can be efficiently introduced into the drying chamber 130 for drying, and the compressed gas can flow through the entire drying chamber 130, ensuring the drying effect.

[0035] Reference Figure 4 In another embodiment, a plurality of guide vanes 132 are installed within the drying chamber 130. The guide vanes 132 are arranged in pairs, with one end of each guide vane 132 extending to the end of the drying chamber 130 near the manifold 163 and the other end extending to the end of the drying chamber 130 near the exhaust port 150. Each guide vane 132 has multiple bends, effectively extending the path and residence time of the compressed gas within the drying chamber 130, thereby improving the drying effect. A flow-blocking portion 1321 is fixed to the concave side of each bend of each guide vane 132. When the airflow encounters the flow-blocking portion 1321, it forms a vortex, which is more conducive to the removal of water vapor from the compressed gas, further improving the drying effect.

[0036] Reference Figure 5 In one embodiment, the housing structure 100 further includes a first one-way valve 170. The first one-way valve 170 is installed in the exhaust port 150 to prevent the backflow of compressed gas discharged from the drying chamber 130.

[0037] In one embodiment, such as Figure 3 As shown, multiple heat dissipation fins 180 are uniformly formed along the length of the outer wall of the shell structure 100. Each heat dissipation fin 180 is a closed ring structure surrounding the air compression chamber 120 and the drying chamber 130. It should be noted that each air compression component 220 generates heat during operation, and the heat dissipation fins 180 are used to dissipate heat from the air compression chamber 120 and the drying chamber 130. When the external airflow passes through the gap between each pair of adjacent heat dissipation fins 180, it carries away the heat, resulting in good heat dissipation effect and high heat dissipation efficiency.

[0038] In one embodiment, a first mounting hole 191 is formed on one side of the housing structure 100, and a second mounting hole 192 is formed on the other side. The first mounting hole 191 is used to mount the drive member 230 that cooperates with the transmission assembly 210. The second mounting hole 192 is used to mount the air passage box 310. This facilitates the disassembly, replacement, and assembly of the housing structure 100, the drive member 230, and the air passage box 310.

[0039] Preferably, the first mounting hole 191 and the second mounting hole 192 are threaded blind holes.

[0040] Reference Figure 3 , Figure 5 and Figure 6 This application discloses an integrated air compression device, including a housing structure 100, a drive member 230, a transmission assembly 210, and an air compression assembly 220 as provided in any of the above embodiments. The drive member 230 is fixedly connected to one side of the housing structure 100. The transmission assembly 210 is installed in the receiving cavity 110 and connected to the output shaft of the drive member 230. The air compression assembly 220 is installed in the air compression cavity 120 and connected to the transmission assembly 210 for compressing air. The drive member 230 can drive the transmission assembly 210 to operate, thereby driving the air compression assembly 220 to work, so as to achieve the purpose of compressing air.

[0041] Preferably, the drive component 230 can be a servo motor, which offers high control precision. Alternatively, the drive component 230 can be a stepper motor, which offers lower cost.

[0042] In one embodiment, the integrated air compressor further includes an air manifold 310, a solenoid valve assembly (not shown), a controller (not shown), and an electrical connector 320. The air manifold 310 is mounted on the other side of the housing structure 100. The solenoid valve assembly is installed inside the air manifold 310 and communicates with the exhaust port 150 on the housing structure 100. The solenoid valve assembly communicates with a high-pressure air tank used with the air compressor and with an air spring used with the air compressor. Compressed gas is supplied to the high-pressure air tank and / or the air spring via the solenoid valve assembly. The controller is installed inside the air manifold 310 and electrically connected to the solenoid valve assembly and the drive element 230, respectively, for controlling whether the solenoid valve assembly and the drive element 230 are operational. The electrical connector 320 is installed outside the air manifold 310 and electrically connected to the controller to facilitate electrical connection between external electrical components and the controller.

[0043] Preferably, the solenoid valve assembly includes multiple solenoid switching valves.

[0044] Preferably, the electrical connector 320 is installed on the side of the gas box 310 near the housing structure 100, thereby further improving space utilization.

[0045] Preferably, the electrical connector 320 can be a threaded connector, a pin connector, a crimp connector, or a floating connector.

[0046] In one embodiment, such as Figure 3 As shown, there are two air compression chambers 120, formed on opposite sides of the receiving cavity 110. Two air compression assemblies are installed within each of the two air compression chambers 120, corresponding one-to-one. The transmission assembly 210 includes an eccentric wheel 211 and two connecting rods 212. The eccentric wheel 211 is connected to the output shaft of the drive member 230. It should be noted that, to prevent mutual interference between the connecting rods 212 on both sides of the eccentric wheel 211 during movement, the eccentric wheel 211 in this application is designed not to rotate around its own axis, but rather is driven by the output shaft of the drive member 230 to perform translational motion within the receiving cavity 110. Specifically, refer to... Figure 3 and Figure 7An elliptical groove 111 is formed on the inner wall of the receiving cavity 110. A sliding rod 2111 is formed in the middle of the side of the eccentric wheel 211 near the groove. The sliding rod 2111 can slide along the groove 111. The side wall of the output shaft of the drive member 230 is connected to the side wall of the sliding rod 2111 by a telescopic rod 213. When the output shaft of the drive member 230 rotates, the sliding rod 2111 moves along the groove 111 via the telescopic rod 213. Since the two connecting rods 212 provide traction on both sides of the eccentric wheel 211, the rotation of the eccentric wheel 211 around its own axis is restricted. One end of each of the two connecting rods 212 is hinged to the opposite sides of the eccentric wheel 211. Each air compression assembly 220 includes a cylinder 221, a piston 222, a valve cover 223, a second one-way valve (not shown in the figure), and a third one-way valve (not shown in the figure). The cylinder 221 is installed in the air compression chamber 120. Piston 222 is slidably mounted within cylinder 221 along its axial direction. Valve cover 223 is mounted on the end of cylinder 221 away from eccentric wheel 211. A second check valve is mounted on valve cover 223. When piston 222 compresses air, the second check valve on valve cover 223 connects the interior of cylinder 221 with the air compression chamber 120, allowing compressed air in cylinder 221 to flow into the air compression chamber 120 via the second check valve on valve cover 223, and then into the drying chamber via the first drain channel 161 and the manifold 163. When piston 222 returns to its original position, the second check valve on valve cover 223 isolates the interior of cylinder 221 from the air compression chamber 120, preventing compressed gas from flowing back into cylinder 221. A third check valve is mounted on piston 222. When piston 222 compresses air, the third one-way valve on piston 222 isolates the interior of cylinder 221 from the receiving cavity 110, preventing gas in cylinder 221 from flowing back into receiving cavity 110. When piston 222 returns to its original position, the third one-way valve on piston 222 connects the interior of cylinder 221 to receiving cavity 110, allowing atmospheric pressure air in receiving cavity to flow into cylinder 221 and be compressed. The pistons 222 of the two air compression assemblies 220 are hinged one-to-one with the ends of the two connecting rods 212 away from the eccentric wheel 211. The output shaft of drive component 230 drives the eccentric wheel 211 to move smoothly, and the two connecting rods 212 drive the two pistons 222 to alternately compress air.

[0047] Preferably, a first through hole is formed on the side of the valve cover 223 near the cylinder body 221, and a second through hole is formed on the side away from the cylinder body 221. The second one-way valve is a diaphragm spring, disposed in the first through hole, and is made of an elastically deformable metal material. When the piston 222 performs work, the compressed gas forces the diaphragm spring in the first through hole to deform, so that the compressed air in the cylinder body 221 flows into the air compression chamber 120 in sequence through the first and second through holes. When the piston 222 returns to its original position, the piston 222 pulls the gas between the piston 222 and the valve cover 223, causing the diaphragm spring to return to its original deformation, thereby sealing the first through hole and isolating the interior of the cylinder body 221 from the air compression chamber 120.

[0048] Reference Figure 2 and Figure 6 In one embodiment, a backflush inlet 142 and a backflush outlet 193 are also formed on the housing structure 100. The backflush inlet 142 is connected to the end of the drying chamber 130 near the exhaust port 150. The backflush outlet 193 is connected to the air compression chamber 120. The integrated air compression device also includes a backflush air passage and a backflush inlet. The backflush air passage is formed on the side of the air passage box 310 near the housing structure 100, and one end is connected to the backflush inlet 142. The backflush inlet is formed on the outer wall of the air passage box 310 and is connected to the other end of the backflush air passage through a solenoid valve assembly. It should be noted that the backflush gas can be a high-temperature gas, which flows into the drying chamber 130 sequentially through the backflush inlet, the solenoid valve assembly, the backflush air passage, and the backflush inlet 142 to backflush the desiccant 131, thereby dehydrating and regenerating the desiccant 131. Afterward, the backflush gas flows out of the housing structure 100 through the backflush outlet (193). The backflush air source is existing technology and will not be described in detail in this application.

[0049] The implementation principle of this embodiment is as follows: Air flows in from the inlet 141, passes sequentially through the receiving cavity 110, the air compression cavity 120, and the drying cavity 130, and then exits from the exhaust port 150. When air flows into the receiving cavity 110 from the inlet 141, the receiving cavity 110, with its certain volume, buffers the air flowing in from the inlet 141, reducing airflow impact and noise. The air in the receiving cavity 110 flows to the air compression cavity 120, where the air compression assembly 220 compresses the air, converting atmospheric pressure air into high-pressure air. When the high-pressure air flows through the drying cavity 130, the desiccant 131 removes water vapor from the compressed gas. The dried compressed gas exits the drying cavity 130 through the exhaust port 150. The shell structure 100 is integrally formed, replacing the existing crankcase housing and drying tank housing. No sealing rings are needed at the connection points, and flexible pipelines are no longer required, greatly reducing the possibility of seal failure, extending service life, and improving the reliability and stability of compression and drying operations. Meanwhile, the overall layout is more organized, more integrated, and occupies less space, greatly improving space utilization. In addition, the heat generated by the air compression chamber 120 can be transferred to the drying chamber 130, which can heat the desiccant 131, facilitating the recycling of the desiccant 131.

[0050] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A shell structure, characterized in that, The housing structure (100) has an internal cavity (110), an air compression cavity (120), and a drying cavity (130); the cavity (110) is used to accommodate the transmission assembly (210); the air compression cavity (120) is connected to the cavity (110) and is used to accommodate the air compression assembly (220) used in conjunction with the transmission assembly (210); the drying cavity (130) is connected to the air compression cavity (120) and is used to hold a desiccant (131); The housing structure (100) has an air inlet (141) and an exhaust outlet (150); the air inlet (141) is connected to the receiving cavity (110); the exhaust outlet (150) is connected to the drying cavity (130); air can flow in from the air inlet (141), pass through the receiving cavity (110), the air compression cavity (120) and the drying cavity (130) in sequence, and then be discharged from the exhaust outlet (150).

2. The shell structure according to claim 1, characterized in that, There are two air compression chambers (120), which are formed on opposite sides of the receiving chamber (110) and are respectively connected to the receiving chamber (110); The drying chamber (130) is formed on the common side of the receiving chamber (110) and the air compression chamber (120).

3. The shell structure according to claim 2, characterized in that, The shell structure (100) has a first drainage channel (161), a second drainage channel (162), and a confluence channel (163) inside. One end of the first drainage channel (161) is connected to one of the air compression chambers (120). One end of the second drainage channel (162) is connected to the other air compression chamber (120). One end of the confluence channel (163) is connected to the other end of the first drainage channel (161) and the other end of the second drainage channel (162), and the other end is connected to one end of the drying chamber (130). The other end of the drying chamber (130) is connected to the exhaust port (150).

4. The shell structure according to any one of claims 1 to 3, characterized in that, Also includes: A first one-way valve (170) is installed inside the exhaust port (150).

5. The shell structure according to any one of claims 1 to 3, characterized in that, The outer wall of the shell structure (100) is provided with a plurality of heat dissipation fins (180).

6. The shell structure according to any one of claims 1 to 3, characterized in that, The housing structure (100) has a first mounting hole (191) and a second mounting hole (192); the first mounting hole (191) is used to install a drive member (230) that cooperates with the transmission assembly (210); the second mounting hole (192) is used to install an air circuit box (310).

7. An integrated air compression device, characterized in that, Includes the housing structure, drive unit (230), transmission assembly (210), and air compression assembly (220) as described in any one of claims 1 to 6. The driving component (230) is fixedly connected to one side of the housing structure (100); The transmission assembly (210) is installed in the receiving cavity (110) and connected to the output shaft of the driving member (230); The air compression assembly (220) is installed inside the air compression chamber (120) and connected to the transmission assembly (210) for compressing air.

8. The integrated air compressor device according to claim 7, characterized in that, Also includes: The gas passage box (310) is installed on the other side of the housing structure (100); The solenoid valve assembly is installed inside the air passage box (310) and communicates with the exhaust port (150) on the housing structure (100); the solenoid valve assembly is used to communicate with the air compression chamber (120) used in conjunction with the air compression device; the solenoid valve assembly is used to communicate with the air spring used in conjunction with the air compression device. The controller is installed in the air circuit box (310) and is connected to the solenoid valve group and the drive unit (230) respectively; An electrical connector (320) is mounted on the pneumatic box (310) and connected to the controller.

9. The integrated air compressor device according to claim 7, characterized in that, The transmission assembly (210) includes: An eccentric wheel (211) is connected to the output shaft of the drive unit (230) via a transmission connection. The connecting rod (212) is rotatably connected at one end to the eccentric wheel (211); The air compression assembly (220) includes: The cylinder (221) is installed inside the air compression chamber (120); The piston (222) is slidably mounted in the cylinder (221) along the axial direction of the cylinder (221) and is rotatably connected to the end of the connecting rod (212) away from the eccentric wheel (211); A valve cover (223) is installed at the end of the cylinder body (221) away from the eccentric wheel (211); A second check valve is installed on the valve cover (223); when the piston (222) compresses air, the second check valve is used to connect the interior of the cylinder (221) with the air compression chamber (120); when the piston (222) resets, the second check valve is used to isolate the interior of the cylinder (221) from the air compression chamber (120). A third check valve is installed on the piston (222); when the piston (222) compresses air, the third check valve isolates the interior of the cylinder (221) from the receiving cavity (110); when the piston (222) resets, the third check valve connects the interior of the cylinder (221) to the receiving cavity (110).

10. The integrated air compressor device according to claim 8, characterized in that, The shell structure (100) also has a backflush inlet (142) and a backflush outlet (193); the backflush inlet (142) is connected to the end of the drying chamber (130) near the exhaust port (150); the backflush outlet (193) is connected to the air compression chamber (120); Also includes: A backflush air passage is formed on the side of the air passage box (310) near the housing structure (100), with one end connected to the backflush inlet (142); A backflush inlet is formed on the outer wall of the air passage box (310) and is connected to the other end of the backflush air passage through the solenoid valve assembly.

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