Integrated air supply device and air suspension system

Abstract

The invention provides an integrated air supply device and an air suspension system.The integrated air supply device comprises a distribution valve assembly, the distribution valve assembly comprises a valve block and a plurality of control valves, the valve block is provided with a plurality of air channels, at least one air channel is provided with an air supply port, the control valves are integrated on the valve block, and the air supply port is communicated with the valve block. The valve block is used for controlling the on-off of the plurality of air channels and is also provided with a containing cavity; the gas compression assembly is installed on the valve block, and the gas input end and the gas output end of the gas compression assembly are both communicated with the gas channel; and at least part of the driving assembly is arranged in the containing cavity, and the output end of the driving assembly is connected with the gas compression assembly so as to drive the gas compression assembly to operate.

Description

Technical Field

[0001] This invention relates to the field of vehicle suspension technology, specifically to an integrated air supply device and an air suspension system. Background Technology

[0002] With the development of automotive technology, especially the rapid development of new energy vehicles, the adoption rate of air suspension systems in vehicles has greatly increased. The air supply system is the core component of the air suspension system and the control center of the vehicle's air suspension.

[0003] Currently, mainstream air supply devices suffer from poor NVH performance and high noise levels during operation, as well as poor heating performance and low regeneration efficiency in the dryer. Therefore, noise reduction has become a primary goal for improving product performance. Summary of the Invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present invention aims to provide an integrated air supply device and air suspension system to solve the above problems.

[0005] A first aspect of the present invention provides an integrated gas supply device, the integrated gas supply device comprising: A distribution valve assembly includes a valve block and multiple control valves. The valve block has multiple air passages, and at least one of the air passages has an air supply port. The multiple control valves are integrated on the valve block and are used to control the opening and closing of the multiple air passages. The valve block also has a receiving cavity. A gas compression assembly is mounted on the valve block, and both the gas input end and the gas output end of the gas compression assembly are connected to the gas passage. A drive assembly, at least a portion of which is disposed within the receiving cavity, and the output of which is connected to the gas compression assembly to drive the gas compression assembly to operate.

[0006] The integrated gas supply device of the present invention places at least a portion of the drive component within the receiving cavity of the valve block of the distribution valve assembly to reduce the noise output of the drive component during operation.

[0007] When the integrated air supply device of the present invention is applied to an air suspension system, less of the noise generated by the drive components is transmitted into the vehicle cabin during operation, providing a better riding experience for the occupants.

[0008] In one embodiment of the integrated gas supply device of the present invention, the valve block includes a first part and a second part, the first part and the second part together forming the receiving cavity; The plurality of control valves are integrated in the first part, and / or the plurality of control valves are integrated in the second part.

[0009] The drive assembly is located inside the housing cavity, resulting in less noise being transmitted to the outside of the housing cavity. This reduces the spread of noise generated by the integrated air supply unit, especially preventing excessive noise from spreading into the vehicle cabin.

[0010] The drive component includes a motor, which can be placed partially or entirely within the housing cavity.

[0011] A sealing element can be provided between the first part and the second part. A dynamic sealing structure is provided between the output shaft of the drive assembly and the through hole of the receiving cavity, which can prevent dust and moisture from entering, protect the motor, and further block the transmission of working noise.

[0012] In one embodiment of the integrated gas supply device of the present invention, each of the control valves includes an electromagnetic coil portion and a valve core portion, and the valve body portions of all the control valves are integrated on the first portion; The integrated gas supply device also includes a control component, which is integrated on the second part. The electromagnetic coil portion of all the control valves is mounted on the second part. The control component controls the energization or de-energization of the electromagnetic coil portion, thereby driving the valve core portion to actuate and control the opening and closing of the multiple gas passages. Both the air passage and the air supply end are located on the first part.

[0013] By placing the valve core and air supply port on the first part and the electromagnetic coil and control components on the second part, the integration of the entire air supply device can be improved. The components are arranged on different parts of the valve block according to their functional areas.

[0014] Air inlets can also be provided on the multiple air passages. The gas input end of the gas compression assembly is connected to the air inlet, and air from the external environment enters the gas compression assembly through the air inlet to provide an air source.

[0015] In one embodiment of the integrated gas supply device of the present invention, the integrated gas supply device further includes a dryer, and both the dryer and the gas compression assembly are mounted on the first part. The air inlet and outlet of the dryer are both connected to the air passage, and the dryer rests against the heating part of the gas compression assembly.

[0016] The dryer and the gas compression assembly are mounted together on the first part of the valve block. When the gas compression assembly is running, more of the heat generated can be transferred to the dryer, improving the dryer's working efficiency and regeneration efficiency.

[0017] In one embodiment of the integrated gas supply device of the present invention, the gas compression component is integrated on the first part, the first part is provided with a first housing, and the first housing at least surrounds the working part of the gas compression component; The dryer is mounted on the first housing and is used to partially absorb the heat generated by the gas compression assembly.

[0018] The working part of the gas compression assembly is the source of heat. The heat generated during the working process is transferred to the first housing, and through the first housing, the heat can be transferred to the dryer to improve the working efficiency of the dryer.

[0019] In one embodiment of the integrated gas supply device of the present invention, the drive assembly includes a motor disposed within the receiving cavity, and the stator and rotor of the motor are close to the second portion and electrically connected to the control assembly.

[0020] The stator and rotor of the motor are located near the control components on the second part, which are capable of controlling the start and stop of the motor.

[0021] The second part of the valve block integrates the motor coil and control components and is electrically connected to the control assembly, thereby improving the integration of the gas supply device.

[0022] In one embodiment of the integrated gas supply device of the present invention, the control component further includes a plurality of power supply ports, which are electrically connected to the motor and the electromagnetic coil respectively, and the control component is used to control the start or stop of the motor and the control valve.

[0023] The control components can supply electrical energy to the motor and solenoid coil through multiple power supply ports, and can also control the operating status of the motor and control valve.

[0024] In one embodiment of the integrated gas supply device of the present invention, the integrated gas supply device further includes a temperature and pressure sensor, the detection end of which is disposed in the gas passage for detecting the temperature and pressure in the gas passage. The temperature and pressure sensor is also electrically connected to the control component, which is used to acquire the temperature and pressure values ​​detected by the detection end.

[0025] The control component can control the start or stop of the motor and the energization or de-energization of one or more control valves based on the temperature and pressure values ​​obtained in the air passage and the required operating conditions.

[0026] A second aspect of the invention provides an air suspension system, the control suspension system comprising an integrated air supply device as described in any of the preceding claims.

[0027] When the air suspension system adopts the aforementioned integrated air supply device, it can reduce the leakage of noise during the operation of the drive components and lower the overall noise level of the air suspension system.

[0028] In one embodiment of the air suspension system of the present invention, the air suspension system further includes an air storage unit and a plurality of air springs; The integrated gas supply device, the gas storage unit, and the multiple air springs are connected to form a closed working unit.

[0029] In a closed-loop working unit, the gas storage unit can serve as both a gas source for the gas compression assembly and a working gas source for the air spring, thereby improving the working efficiency of the air suspension system. Attached Figure Description

[0030] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the integrated gas supply device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the integrated gas supply device of the present invention, which shows multiple control valves inside; Figure 3 This is an exploded view of the integrated gas supply device of the present invention; Figure 4 An exploded view of the integrated gas supply device of the present invention from another perspective; Figure 5 This is a schematic diagram illustrating the working principle of the integrated air supply device of the present invention applied to an air suspension system; Figure 6 This is a schematic diagram of the first working state of the air suspension system of the present invention, used for vehicle body lifting; Figure 7 This is a schematic diagram of the second working state of the air suspension system of the present invention, used for vehicle body descent; Figure 8 This is a schematic diagram of the third working state of the air suspension system of the present invention, used for replenishing air to the air storage unit; Figure 9 This is a schematic diagram of the fourth working state of the air suspension system of the present invention, used for replenishing air springs; Figure 10 This is a schematic diagram of the fifth operating state of the air suspension system of the present invention; Figure 11 This is a schematic diagram of the sixth operating state of the air suspension system of the present invention.

[0031] Icon labels: 100. Integrated gas supply unit; 200. Distribution valve assembly; 210. Valve block; 211. Air passage; 212. Air supply port; 213. First part; 214. First housing; 215. Second part; 216. Receiving cavity; 220. Control valve; 221. Solenoid coil part; 222. Valve core part; 201. First control valve; 202. Second control valve; 203. Third control valve; 204. Fourth control valve; 205. Fifth control valve; 206. Sixth control valve; 207. Seventh control valve; 208. Eighth control valve; 209. Ninth control valve; 300. Gas compression assembly; 400. Driver components; 500. Control components; 600. Dryer; 700. Temperature and pressure sensor; 800. Air suspension system; 810. Air storage unit; 820. Air spring. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. This description is merely illustrative and explanatory, and should not be construed as limiting the scope of protection of the present invention in any way. Specifically, the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0034] 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 for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] Figure 1 This is a schematic diagram of the integrated gas supply device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the integrated gas supply device of the present invention, which shows multiple control valves inside; Figure 3 This is an exploded view of the integrated gas supply device of the present invention; Figure 4 This is an exploded view of the integrated gas supply device of the present invention from another perspective; as shown Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the integrated gas supply device 100 provided by the present invention includes: a distribution valve assembly 200, a gas compression assembly 300, and a drive assembly 400.

[0037] The distribution valve assembly 200 includes a valve block 210 and multiple control valves 220. The valve block 210 is provided with multiple air passages 211, and at least one air passage 211 is provided with an air supply port 212. The multiple control valves 220 are integrated on the valve block 210 to control the opening and closing of the multiple air passages 211. The valve block 210 is also provided with a receiving cavity 216.

[0038] The gas compression assembly 300 is mounted on the valve block 210, and both the gas input end and the gas output end of the gas compression assembly 300 are connected to the gas passage 211.

[0039] At least a portion of the drive assembly 400 is disposed within the receiving cavity 216, and the output end of the drive assembly 400 is connected to the gas compression assembly 300 to drive the gas compression assembly 300 to operate.

[0040] The integrated gas supply device 100 of the present invention has at least a portion of the drive assembly 400 disposed within the receiving cavity 216 of the valve block 210 of the distribution valve assembly 200, so as to reduce the noise output of the drive assembly 400 during operation.

[0041] When the integrated air supply device 100 of the present invention is applied to the air suspension system 800, when the integrated air supply device 100 is running, less of the noise generated by the drive component 400 is transmitted into the vehicle cabin, providing a better riding experience for the occupants in the vehicle cabin.

[0042] In one embodiment, the control valve 220 may be a solenoid valve or a pneumatic solenoid valve, and the control component 500 may be configured as an electronic control unit.

[0043] In one embodiment of the present invention, the valve block 210 includes a first part 213 and a second part 215, the first part 213 and the second part 215 together forming a receiving cavity 216; Multiple control valves 220 are integrated on the first part 213, and / or multiple control valves 220 are integrated on the second part 215.

[0044] The drive assembly 400 is located inside the housing cavity 216, resulting in less noise being transmitted to the outside of the housing cavity 216, thereby reducing the diffusion of noise generated by the operation of the integrated air supply device 100, especially preventing excessive noise from spreading into the vehicle cabin.

[0045] The drive assembly 400 includes a motor, which can be placed in part or all of the housing cavity 216.

[0046] like Figure 3 As shown, the motor body of the drive assembly 400 is housed in the receiving cavity 216, and its output shaft extends out of the receiving cavity 216 and is connected to the gas compression assembly 300.

[0047] Alternatively, the stator and rotor of the motor can be completely housed within the housing cavity, with only its output shaft passing through the side wall of the housing cavity to connect with the gas compression assembly.

[0048] A sound-absorbing material layer can also be installed on the inner wall of the cavity to reduce noise, forming a more specific noise reduction structure. A sound-absorbing material layer is also installed on the outer shell of the drive component, which can also serve the purpose of noise reduction.

[0049] It should be noted that the gas compression assembly 300 can be a reciprocating compressor, a scroll compressor, or any other gas compression structure suitable for vehicle air suspension systems. The motor of the drive assembly 400 can be a DC brushless motor or a brushed motor, and its specific type and power can be selected according to system requirements.

[0050] In one embodiment of the invention, each control valve 220 includes an electromagnetic coil portion 221 and a valve core portion 222, and the valve body portions of all control valves 220 are integrated on a first portion 213.

[0051] The integrated gas supply device 100 also includes a control component 500, which is integrated on the second part 215. The solenoid coil parts 221 of all control valves 220 are mounted on the second part 215. The control component 500 controls the energization or de-energization of the solenoid coil parts 221, thereby driving the valve core parts 222 to control the opening and closing of multiple gas passages 211.

[0052] Both the air passage 211 and the air supply end are located on the first part 213.

[0053] By placing the valve core part 222 and the air supply port 212 on the first part 213, and the electromagnetic coil part 221 and the control component 500 on the second part 215, the integration of the entire air supply device can be improved. The components are arranged on different parts of the valve block 210 according to their functional areas.

[0054] Multiple air passages 211 can also be equipped with air inlets. The gas input end of the gas compression assembly 300 is connected to the air inlet, and air from the external environment enters the gas compression assembly 300 through the air inlet to provide an air source.

[0055] In a preferred embodiment of the invention, to achieve a higher degree of integration and reliable electrical connection, a printed circuit board (PCB, not shown) is fixedly mounted on the inner side of the second part 215. All electronic components of the control assembly 500 are mounted on this PCB. The electromagnetic coil portions 221 of all control valves 220 are not connected to the control assembly 500 via independent wires, but are designed as integrated coil frames with multiple pins. When the second part 215 is assembled with the first part 213, the pins of these electromagnetic coil portions 221 are directly inserted into corresponding sockets on the PCB, or directly soldered to the PCB pads using surface mount technology (SMT). This "wireless" direct connection method not only simplifies the assembly process and improves production efficiency, but also greatly enhances the reliability and vibration resistance of the electrical connection.

[0056] The second part is also provided with a circuit board that is electrically connected to the control component. The pins of the electromagnetic coil part are directly soldered or plugged into the circuit board, which avoids complex wire connections and improves reliability and assembly efficiency.

[0057] The control component 500 integrates not only the power supply ports and power circuits for driving the motor and control valves, but also a microcontroller unit (MCU). This MCU stores a control program that, based on instructions from the vehicle's electronic control unit (VCU) and real-time data from the temperature and pressure sensors 700, independently and coordinately controls the operating states of the motor and nine control valves (201-209), automatically switching between complex operating conditions such as vehicle body raising, lowering, air storage, and pressure holding, achieving highly integrated and intelligent control.

[0058] The control components, the second part, and all the electromagnetic coils integrated on the second part together constitute an independently assembleable control module. Its modular design facilitates production and maintenance.

[0059] In one embodiment of the present invention, the integrated gas supply device 100 further includes a dryer 600, and both the dryer 600 and the gas compression assembly 300 are mounted on the first part 213.

[0060] The air inlet and outlet of the dryer 600 are both connected to the air passage 211, and the dryer 600 rests against the heating part of the gas compression assembly 300.

[0061] The dryer 600 and the gas compression assembly 300 are jointly mounted on the first part 213 of the valve block 210. When the gas compression assembly 300 is running, more of the heat generated can be transferred to the dryer 600, improving the working efficiency and regeneration efficiency of the dryer 600.

[0062] In one embodiment of the present invention, a gas compression assembly 300 is integrated on a first portion 213, the first portion 213 being provided with a first housing 214, the first housing 214 at least surrounding the working portion of the gas compression assembly 300.

[0063] The dryer 600 is mounted on the first housing 214 and is used to partially absorb the heat generated by the gas compression assembly 300.

[0064] The working part of the gas compression assembly 300 is the source of heat. The heat generated during the working process is transferred to the first housing 214, and the heat can be transferred to the dryer 600 through the first housing 214 to improve the working efficiency of the dryer 600.

[0065] like Figure 1 and Figure 3 As shown, the dryer 600 is fixedly mounted on the first housing 214, and its housing forms a tight thermal conductive contact with the outer wall of the first housing 214. Since the gas compression assembly 300 (such as a compressor cylinder head) generates a large amount of heat during operation, this heat is first conducted to the first housing 214 integrated with it.

[0066] The dryer 600, which is in close contact with the first housing 214, can efficiently absorb this heat, thereby rapidly raising the temperature of the desiccant inside the dryer 600. This heat conduction design greatly improves the heating and regeneration efficiency of the dryer, ensuring that the desiccant can quickly desorb moisture and restore its drying capacity.

[0067] In one embodiment of the invention, the drive assembly 400 includes a motor disposed within a receiving cavity 216, and the stator and rotor of the motor are close to the second portion 215 and electrically connected to the control assembly 500.

[0068] The stator and rotor of the motor are close to the control component 500 on the second part 215. The control component 500 can control the start and stop of the motor.

[0069] The second part 215 of the valve block 210 is centrally located for the motor coil and control components, and is electrically connected to the control component 500, thereby improving the integration of the gas supply device.

[0070] See Figure 3 and Figure 4 In one specific implementation, the drive assembly 400 includes a motor. To significantly reduce the outward propagation of vibration and noise generated during motor operation, the main body of the motor is completely housed within a receiving cavity 216 formed by the first part 213 and the second part 215 of the valve block 210.

[0071] Specifically, the stator and rotor of the motor are both located in the receiving cavity 216 and close to the side of the second part 215 where the control component 500 is integrated, so as to facilitate electrical connection with the control component 500 and shorten the circuit path.

[0072] The motor's output shaft extends from the receiving cavity 216 and is drive-connected to the drive end (such as a crankshaft or eccentric wheel) of the gas compression assembly 300 mounted on the first part 213. Through this "embedded" layout that encloses the main noise source inside the valve block, the valve block housing itself constitutes an effective sound barrier, greatly attenuating the transmission of noise toward the vehicle cabin.

[0073] In one embodiment of the present invention, the control component 500 further includes a plurality of power supply ports, which are electrically connected to the motor and the electromagnetic coil portion 221 respectively, and the control component 500 is used to control the start or stop of the motor and the control valve 220.

[0074] The control component 500 can supply electrical energy to the motor and electromagnetic coil section 221 through multiple power supply ports, and can also control the operating status of the motor and control valve 220.

[0075] In one embodiment of the present invention, the integrated air supply device 100 further includes a temperature and pressure sensor 700, the detection end of which is located in the air passage 211 for detecting the temperature and pressure in the air passage 211.

[0076] The temperature and pressure sensor 700 is also electrically connected to the control component 500, which is used to acquire the temperature and pressure values ​​detected by the detection end.

[0077] The control component 500 can control the start or stop of the motor and control the energization or disconnection of one or more control valves 220 based on the temperature and pressure values ​​obtained in the air passage 211 and the required operating conditions.

[0078] To achieve accurate monitoring and intelligent control of the system status, the integrated gas supply device 100 also includes an integrated temperature and pressure sensor 700.

[0079] The detection probe of the temperature and pressure sensor 700 extends into one of the air passages 211 of the valve block 210 (e.g., the main air passage near the output end of the gas compression assembly 300) to detect the temperature and pressure of the compressed gas in the air passage in real time.

[0080] The signal output terminal of the temperature and pressure sensor 700 is electrically connected to the control component 500. The control component 500 (e.g., an electronic control unit ECU) is configured to acquire and analyze the temperature and pressure values ​​collected by the sensor in real time, and based on this data and in conjunction with a preset control strategy, precisely control the start / stop of the drive component 400 (motor) and the opening and closing of each control valve 220, thereby realizing advanced functions such as dryer regeneration and system overpressure protection.

[0081] The present invention also provides an air suspension system 800, wherein the control suspension system includes an integrated air supply device 100 as described in any of the above embodiments.

[0082] Figure 5 This is a schematic diagram illustrating the working principle of the integrated air supply device 100 of the present invention applied to an air suspension system 800. Figure 6 This is a schematic diagram of the first working state of the air suspension system 800 of the present invention, used for vehicle body lifting; Figure 7 This is a schematic diagram of the second working state of the air suspension system 800 of the present invention, used for vehicle body descent; Figure 8 This is a schematic diagram of the third working state of the air suspension system 800 of the present invention, used for replenishing air to the air storage unit; Figure 9 This is a schematic diagram of the fourth operating state of the air suspension system 800 of the present invention, used for replenishing air to the air spring 820, such as... Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the air suspension system 800 includes multiple control valves 220, namely a first control valve 201, a second control valve 202, a third control valve 203, a fourth control valve 204, a fifth control valve 205, a sixth control valve 206, a seventh control valve 207, an eighth control valve 208, and a ninth control valve 209. In combination with the above control valves 220, the various functions of the air suspension system 800 are realized according to the direction indicated by the arrow.

[0083] A control method for an air suspension system includes: receiving a vehicle height adjustment signal; controlling the start of a drive assembly based on the signal, and controlling a portion of a plurality of control valves to open an air passage between the gas compression assembly and at least one air spring; monitoring the air pressure in the air passage in real time using a temperature and pressure sensor; and controlling the drive assembly to stop when the monitored air pressure reaches a preset threshold.

[0084] Figure 10 This is a schematic diagram of the fifth operating state of the air suspension system 800 of the present invention, as shown below. Figure 10 As shown, the airflow follows the direction indicated by the arrow, and the compressed air in the air storage unit 810 is discharged. Figure 11 This is a schematic diagram of the sixth operating state of the air suspension system 800 of the present invention, as shown below. Figure 11 As shown, the airflow follows the direction indicated by the arrow, and the compressed gas in the air spring 820 is discharged.

[0085] When the air suspension system 800 adopts the aforementioned integrated air supply device 100, it can reduce the noise leakage during the operation of the drive component 400 and lower the overall noise level of the air suspension system 800.

[0086] In one embodiment of the air suspension system 800 of the present invention, the air suspension system 800 further includes an air storage unit and a plurality of air springs 820.

[0087] An integrated air supply device 100, an air storage unit, and multiple air springs 820 are connected to form a closed working unit.

[0088] In the closed working unit, the gas storage unit can serve as both a gas source for the gas compression assembly 300 and a working gas source for the air spring 820, thereby improving the working efficiency of the air suspension system 800.

[0089] In the integrated air supply device 100 of the present invention, the valve block 210, dryer 600, motor, temperature and pressure sensor 700, solenoid valve and compressor are combined to form an air circuit control unit. The motor is arranged on the same side of the pneumatic valve block 210 as the electronic control unit. The solenoid valve is distributed in the valve block 210. The compressor is arranged in the valve block 210 and driven by the motor. The electronic control unit is arranged on the same side of the valve block 210 as the motor. The dryer 600 is arranged on the side of the valve block 210 opposite to the controller.

[0090] The integrated supply device provided by the present invention can effectively reduce the operating noise of the product, while improving the heating efficiency of the dryer 600 and thus improving the regeneration efficiency of the dryer 600.

[0091] The integrated air supply device 100 of the present invention has made the following design modifications to the positional arrangement of the motor, dryer 600 and electronic control unit, and its structure is as follows: part of the motor is arranged inside the valve block 210, and the other part is arranged inside the electronic control unit. The dryer 600 is arranged on the side of the pneumatic valve block 210 opposite to the electronic control unit.

[0092] The gas supply device of the present invention, through a new structural design and arrangement, can effectively solve and improve the defects of poor NVH performance and high noise during product operation, as well as the shortcomings of poor heating performance and low regeneration efficiency of the dryer 600.

[0093] The integrated air supply unit also includes a silencer filter, which is installed on the valve block and connected to the air passage connected to the gas input end. The filter and air intake silencer functions are also integrated into the valve block, further improving the integration and NVH performance.

[0094] The core innovation of the integrated air supply device 100 of the present invention includes: arranging the motor, one of the main noise sources of the product, in the pneumatic valve block 210 and on the same side as the electronic control unit. After the product is assembled, the motor is completely enclosed inside the product. The noise generated by the motor is soundproofed by the pneumatic valve block 210 and the electronic control unit before being transmitted out, which can significantly reduce the noise of the product.

[0095] This structural arrangement places the dryer 600 on the side opposite to the pneumatic valve block 210 and the electronic control unit. One side of the dryer 600 is in close contact with the compressor, the main heat source of the product, and the other side is in close contact with the pneumatic valve block 210. The heat generated when the product is working can be more fully heated to the dryer 600, thereby improving the regeneration efficiency of the dryer 600.

[0096] A thermally conductive layer, such as thermal grease or a thermal pad, can be placed between the dryer and the heat-generating parts of the gas compression assembly. Even when the dryer and the heat-generating parts of the gas compression assembly are completely in contact, microscopic gaps still exist. Adding thermal grease or a thermal pad can further optimize heat transfer.

[0097] This design eliminates the safety valve and redesigns it by using control valve 220 to simultaneously function as both an exhaust valve and a safety valve. Reducing the number of parts lowers costs, shrinks the product size, and reduces product weight.

[0098] At least one of the control valves may also be provided with a manual unlocking mechanism for manually controlling the opening of the control valve in the event of a power outage.

[0099] The integrated air supply device 100 of the present invention is mainly used in the vehicle air suspension system 800 to control the pressure and inflation / deflation of the vehicle's air springs 820, thereby adjusting the vehicle's posture.

[0100] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. An integrated gas supply device, characterized in that, The integrated gas supply device includes: A distribution valve assembly includes a valve block and multiple control valves. The valve block has multiple air passages, and at least one of the air passages has an air supply port. The multiple control valves are integrated on the valve block and are used to control the opening and closing of the multiple air passages. The valve block also has a receiving cavity. A gas compression assembly is mounted on the valve block, and both the gas input end and the gas output end of the gas compression assembly are connected to the gas passage. A drive assembly, at least a portion of which is disposed within the receiving cavity, and the output of which is connected to the gas compression assembly to drive the gas compression assembly to operate.

2. The integrated gas supply device according to claim 1, characterized in that, The valve block includes a first part and a second part, which together form the receiving cavity; The plurality of control valves are integrated in the first part, and / or the plurality of control valves are integrated in the second part.

3. The integrated gas supply device according to claim 2, characterized in that, Each of the control valves includes a solenoid coil portion and a valve core portion, and the valve body portion of all the control valves is integrated on the first portion; The integrated gas supply device also includes a control component, which is integrated on the second part. The electromagnetic coil portion of all the control valves is mounted on the second part. The control component controls the energization or de-energization of the electromagnetic coil portion, thereby driving the valve core portion to actuate and control the opening and closing of the multiple gas passages. Both the air passage and the air outlet are located on the first part.

4. The integrated gas supply device according to claim 2 or 3, characterized in that, The integrated gas supply device also includes a dryer, and both the dryer and the gas compression assembly are mounted on the first part. The air inlet and outlet of the dryer are both connected to the air passage, and the dryer rests against the heating part of the gas compression assembly.

5. The integrated gas supply device according to claim 4, characterized in that, The gas compression assembly is integrated on the first part, and the first part is provided with a first housing, the first housing at least surrounding the working part of the gas compression assembly; The dryer is mounted on the first housing and is used to partially absorb the heat generated by the gas compression assembly.

6. The integrated gas supply device according to claim 4, characterized in that, The drive assembly includes a motor disposed within the receiving cavity, with the stator and rotor of the motor located close to the second portion and electrically connected to the control assembly.

7. The integrated gas supply device according to claim 6, characterized in that, The control component also includes multiple power supply ports, which are electrically connected to the motor and the electromagnetic coil respectively, and the control component is used to control the start or stop of the motor and the control valve.

8. The integrated gas supply device according to claim 6, characterized in that, The integrated gas supply device also includes a temperature and pressure sensor, the detection end of which is located inside the gas passage and is used to detect the temperature and pressure inside the gas passage. The temperature and pressure sensor is also electrically connected to the control component, which is used to acquire the temperature and pressure values ​​detected by the detection end.

9. An air suspension system, characterized in that, The air suspension system includes the integrated air supply device as described in any one of claims 1-8.

10. The air suspension system according to claim 9, characterized in that, The air suspension system also includes an air storage unit and multiple air springs. The integrated gas supply device, the gas storage unit, and the multiple air springs are connected to form a closed working unit.

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