A dryer and air suspension system

Abstract

The application relates to a dryer and an air suspension system, the dryer comprising a shell and a heating element, the heating element comprising a mounting part and a heating part connected with the mounting part, the heating part being arranged in an inner cavity of the shell; the mounting part is fixedly arranged on the shell, and a sealant layer is arranged between the outer wall of the mounting part and the shell; a wiring part electrically connected with the heating part is further arranged on the mounting part, and the wiring part is arranged outside the shell. According to the application, the mounting part of the heating element is directly sealed and arranged on the shell of the dryer through the sealant layer, so that the sealing between the heating element and the shell does not need to be realized through locking pieces and sealing rings, the mounting step of the heating element is effectively simplified, the convenience of the dryer assembly process is improved, the design of the dryer is simplified, and the product cost is reduced.

Description

Technical Field

[0001] This application relates to the field of air suspension technology, and in particular to a dryer and an air suspension system. Background Technology

[0002] Air suspension systems typically include a dryer, where a desiccant is used to dry the intake air. Existing technology includes dryers such as those shown in patent application CN119499830A, where a heating element is inserted axially into the dryer housing to heat the desiccant and the backflushing airflow during desiccant regeneration, thereby improving regeneration efficiency and achieving complete desiccant regeneration. During assembly, this dryer requires a locking mechanism and sealing rings to ensure a tight seal between the heating module sleeve and the dryer housing to prevent high-pressure air leakage. The installation of the heating module sleeve is cumbersome and inconvenient. Utility Model Content

[0003] Based on this, this application provides a dryer and an air suspension system to improve the inconvenience caused by the cumbersome operation of the dryer assembly process in the prior art.

[0004] In a first aspect, this application provides a dryer, including a housing and a heating element, the heating element including a mounting portion and a heating portion connected to the mounting portion, the heating portion being disposed within the inner cavity of the housing; the mounting portion is fixedly disposed on the housing, and the outer wall of the mounting portion is sealed to the housing by a potting adhesive layer;

[0005] The mounting part is also provided with a wiring part that is electrically connected to the heating part, and the wiring part is located outside the housing.

[0006] In one embodiment, the mounting portion is at least partially embedded in the housing.

[0007] In one embodiment, the housing has a drying chamber filled with desiccant, and the housing is provided with an air inlet and an air outlet, which are connected through the drying chamber.

[0008] The heating element is located inside the drying chamber or between the air outlet and the drying chamber.

[0009] In one embodiment, the housing includes a cylindrical body with open ends and a plug for sealing both ends of the cylindrical body, the plug being detachably connected to the cylindrical body;

[0010] The drying chamber is a cavity formed by two opposing partitions and the inner wall of the cylinder. The partitions are movably connected to the inner wall of the cylinder and have ventilation holes.

[0011] An elastic clamping member is provided between the baffle plate located near the air inlet and the opposite plug;

[0012] The baffle plate located near the air outlet abuts against the limiting member, which is located on the inner wall of the cylinder.

[0013] In one embodiment, the elastic clamping member includes a spring, the two ends of which abut against the partition and the plug, respectively.

[0014] In one embodiment, the limiting member includes a boss.

[0015] In one embodiment, a leak-proof element is provided on the side of the partition closest to the desiccant.

[0016] In one embodiment, the mounting part is disposed on the cylinder, and the air inlet and the air outlet are respectively located at both ends of the side wall of the cylinder.

[0017] In one embodiment, the cylinder is also equipped with a temperature and humidity sensor for detecting the temperature and humidity of the desiccant.

[0018] Secondly, this application provides an air suspension system, which includes any of the dryers provided in this application.

[0019] This application directly seals the heating element mounting part onto the dryer housing using a potting compound layer, eliminating the need for locking components and sealing rings to achieve a seal between the heating element and the housing. This effectively simplifies the installation steps of the heating element, improves the convenience of the dryer assembly process, simplifies the dryer design, and reduces product costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the dryer provided in Embodiment 1 of this application;

[0021] Figure 2 This is a cross-sectional view of the dryer provided in Embodiment 1 of this application;

[0022] Figure 3 This is an airflow diagram of the dryer provided in Embodiment 1 of this application under the gas supply condition;

[0023] Figure 4 The airflow diagram of the dryer provided in Embodiment 1 of this application under desiccant regeneration conditions.

[0024] Reference numerals: 100, housing; 110, air inlet; 120, air outlet; 130, plug; 140, drying chamber; 150, cylinder; 200, limiting component; 300, desiccant; 400, heating element; 410, heating section; 420, wiring section; 430, mounting section; 500, partition; 600, leak-proof component; 700, elastic clamping component; 800, temperature and humidity sensor. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0026] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model.

[0027] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0028] The orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "middle," "longitudinal," "transverse," "horizontal," "inner," "outer," "radial," and "circumferential" used in this specification are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of simplifying the description. They 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 limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Dryers can be used in air suspension systems. During air replenishment, air enters the dryer housing through the air inlet, where the desiccant adsorbs water molecules from the air. The dried air is then discharged from the housing through the air outlet.

[0030] When the humidity of the desiccant inside the housing rises to a certain upper threshold, desiccant regeneration is usually required. During desiccant regeneration, the air inside the housing can be backflushed. During backflushing, the air carries the moisture from the desiccant out of the housing, restoring its drying capacity. During desiccant regeneration, the desiccant can also be heated by a heating element to improve the regeneration effect. When the desiccant humidity drops to a certain lower threshold, the heating element can be stopped.

[0031] As described in the background section, in the prior art, to facilitate wiring the heating element, the dryer housing is usually provided with a wiring chamber, which can be used to arrange the pins and other components of the heating element. To prevent high-pressure air from flowing into the wiring chamber, a boss is provided at the connection between the heating module sleeve and the dryer housing, and a sealing groove is provided corresponding to the inner end face structure of the dryer housing. A sealing ring is installed between the boss and the groove. After the heating module sleeve is inserted into the dryer housing, the end of the heating module sleeve provides a locking force through a locking member to ensure that the sealing ring is continuously in a compressed state, thereby achieving a tight seal between the groove surface and the sealing ring, as well as a tight seal between the sealing ring and the end face of the boss.

[0032] The applicant found that the installation of the heating module sleeve in the aforementioned dryer was cumbersome and inconvenient during assembly. Therefore, this application provides a dryer and an air suspension system.

[0033] Example 1

[0034] like Figures 1 to 4 As shown, Embodiment 1 of this application provides a dryer, including a housing 100 and a heating element 400. The heating element 400 includes a mounting portion 430 and a heating portion 410 connected to the mounting portion 430. The heating portion 410 is disposed within the inner cavity of the housing 100. The mounting portion 430 is fixedly disposed on the housing 100, and the outer wall of the mounting portion 430 is sealed to the housing 100 by a potting adhesive layer.

[0035] The mounting part 430 is also provided with a wiring part 420 that is electrically connected to the heating part 410. The wiring part 420 is located outside the housing 100.

[0036] like Figure 1 and Figure 2As shown in this embodiment, the shell 100 of the dryer can be made of materials such as plastic or rubber, and can be manufactured by injection molding. When the shell 100 is formed, it has an inner cavity for arranging the desiccant 300 and the heating element 400. The heating element 400 may include a mounting part 430, a heating part 410, and a wiring part 420. The heating part 410 can be an electric heating element, such as a heating resistance wire, which is located inside the inner cavity of the shell 100. The mounting part 430 can be connected to the heating part 410. The mounting part 430 can also be made of materials such as plastic or rubber, and can be fixedly mounted on the shell 100. Its outer wall can be sealed to the shell 100 by a potting compound layer, which can be formed by cooling the potting compound after application. The wiring part 420 can be a conductive element, such as a copper wire and pins, which can be located outside the shell 100. The wiring part 420 can be electrically connected to the heating part 410 to connect the heating part 410 to a power supply device, such as a power source, so as to enable the heating part 410 to achieve the purpose of heating.

[0037] It is understood that by directly sealing the mounting part 430 of the heating element 400 onto the housing 100 of the dryer through a potting compound layer, this application eliminates the need for locking components and sealing rings to achieve a seal between the heating element 400 and the housing 100, effectively simplifying the installation steps of the heating element 400 and improving the convenience of the dryer assembly process; it also simplifies the design of the dryer and reduces product costs.

[0038] Specifically, the mounting part 430 is at least partially embedded in the housing 100.

[0039] like Figure 1 and Figure 2 As shown in this embodiment, by way of example, the housing 100 may have pre-drilled holes for the mounting portion 430 to be inserted, and these holes may be rectangular. The mounting portion 430 may be a rectangular block structure adapted to the holes, and when inserted into the holes, it may have an interference fit with the holes to ensure stability during insertion. Before insertion, the outer side of the mounting portion 430 may be coated with potting compound so that after insertion, a potting compound layer for sealing is formed between the outer wall of the mounting portion 430 and the housing 100.

[0040] It is understood that in this embodiment, by at least partially embedding the mounting part 430 into the housing 100, a potting compound layer for sealing is formed between the outer wall of the mounting part 430 and the housing 100, so as to ensure the ease of operation and convenience of the heating element 400 installation steps.

[0041] Specifically, the housing 100 has a drying chamber 140 filled with desiccant 300, and the housing 100 is provided with an air inlet 110 and an air outlet 120, which are connected through the drying chamber 140.

[0042] The heating unit 410 is located inside the drying chamber 140 or between the air outlet 120 and the drying chamber 140.

[0043] like Figure 2 As shown in this embodiment, by way of example, the inner cavity of the housing 100 can form a drying chamber 140, which is filled with a desiccant 300. The desiccant 300 can adsorb water molecules in the air to achieve the purpose of drying the air. An air inlet 130 and an air outlet 140 can be provided on the housing 100, and the air inlet 130 and the air outlet 140 can be connected through the drying chamber 140. Both the air inlet 130 and the air outlet 140 can be in the form of pipe connectors and can be inserted into the housing 100.

[0044] like Figure 3 As shown, in this embodiment, under the air replenishment condition, air can enter the housing 100 through the air inlet 130, and the desiccant 300 in the drying chamber 140 can adsorb water molecules in the air. Then the dried air can be discharged through the air outlet 140.

[0045] like Figure 4 As shown, during the desiccant 300 regeneration process, air can be backflushed within the housing 100. This means air enters the housing 100 through the outlet 140 and exits through the inlet 130. As the air flows through the drying chamber 140, it carries moisture from the desiccant 300 out of the housing 100, restoring the desiccant 300's drying capacity and achieving regeneration. Simultaneously, during backflushing, the heating element 400 is activated to heat the air via the heating unit 410, thereby regenerating the desiccant 300 with hot air and improving the regeneration effect.

[0046] The heating element 410 can be located inside the drying chamber 140 or between the air outlet 120 and the drying chamber 140; this embodiment will be described using the latter as an example, that is, the heating element 410 does not extend into the desiccant 300, but is spaced apart from the desiccant 300. In this structure, when the desiccant 300 needs to be regenerated and the air is heated by the heating element 410, the air can be heated first to form hot air, which then carries the water molecules in the desiccant 300 out of the housing 100. The aforementioned arrangement does not require the heating element 410 to be placed inside the desiccant 300, making the installation process of the heating element 400 more convenient. At the same time, by maintaining a distance between the heating element 410 and the desiccant 300, it can also avoid the phenomenon of localized overheating of the desiccant 300 caused by directly heating the desiccant 300 during heating.

[0047] More specifically, the housing 100 includes a cylindrical body 150 with open ends and a plug 130 for sealing both ends of the cylindrical body 150, the plug 130 being detachably connected to the cylindrical body 150.

[0048] The drying chamber 140 is a cavity formed by two opposing partitions 500 and the inner wall of the cylinder 150. The partitions 500 are movably connected to the inner wall of the cylinder 150, and the partitions 500 have ventilation holes.

[0049] An elastic clamping element 700 is provided between the baffle 500 located near the air inlet 110 and the opposite plug 130;

[0050] A baffle 500 located near the air outlet 120 abuts against a limiting member 200, which is located on the inner wall of the cylinder 150.

[0051] In this embodiment, the housing 100 may include a cylindrical body 150 and a plug 130, wherein the cylindrical body 150 may be configured as a cylindrical structure, such as a cylinder or a quadrangular prism; this embodiment uses a cuboid cylindrical body 150 as an example. The two ends of the cylindrical body 150 may be open, and two plugs 130 may be provided, each sealing one of the open ends of the cylindrical body 150. The plug 130 may be detachably connected to the housing 100, for example, by threaded connection. Specifically, the outer edge of the plug 130 may have an external thread, and the open end of the housing 100 may have a threaded hole adapted to the external thread. By removing the plug 130, the inner cavity of the cylindrical body 150 can be opened and closed.

[0052] like Figure 2As shown, in this embodiment, a partition 500 may also be provided inside the cylinder 150. Two partitions 500 may be provided, and each partition 500 may be perpendicular to the axis of the cylinder 150. The partitions 500 may be movably connected to the inner wall of the cylinder 150, and the two partitions 500 may be spaced apart along the axial direction of the cylinder 150. The drying chamber 140 may be formed by the two partitions 500 and the inner wall of the cylinder 150, meaning that the desiccant 300 may be filled between the two partitions 500. By driving the partitions 500 to move in and out of the cylinder 150, the filling and replacement of the desiccant 300 within the drying chamber 140 can be achieved. Ventilation holes may be provided on the partitions 500, and these holes may be evenly distributed on the partitions 500. The ventilation holes may be used for air to enter and exit the drying chamber 140, so that the desiccant 300 dries the air or allows the air to regenerate the desiccant 300.

[0053] Of the two partitions 500, one partition 500 can be positioned near the air outlet 120 and abuts against the limiting member 200, which is located on the inner wall of the cylinder 150 and is used to limit the partition 500, thereby fixing it axially along the cylinder 150. The other partition 500 can be positioned near the air inlet 110, and an elastic clamping member 700 can be provided between it and the opposing plug 130. The elastic clamping member 700 can use its elastic properties to press the partition 500 against the cylinder 150.

[0054] It is understood that in this embodiment, by setting two partitions 500 that are movably connected to the cylinder 150, and enclosing the two partitions 500 with the inner wall of the cylinder 150 to form a drying chamber, and with the help of the limiting member 200 and the elastic pressing member 700, it is easy to uniformly fill the desiccant 300 into the second space 120.

[0055] More specifically, the elastic clamping element 700 includes a spring, the two ends of which abut against the partition 500 and the plug 130, respectively.

[0056] like Figure 2 As shown in this embodiment, the elastic clamping member 700 may include a spring, which may be arranged axially along the cylinder 150, with one end abutting against the partition 500 and the other end abutting against the end cap 130. During assembly, the partition 500 may be assembled into the cylinder 150 first, followed by the assembly of the spring. Finally, the spring may be compressed by the end cap 130, and the end cap 130 may be threadedly connected to the cylinder 150. At this time, the compressed spring may apply pressure to the partition 500 to press the partition 500 against the cylinder.

[0057] It is understood that the elastic clamping member 700 in this embodiment includes a spring, with both ends of the spring abutting against the partition 500 and the plug 130 respectively, so as to tighten the partition 500.

[0058] More specifically, the limiting element 200 includes a boss.

[0059] like Figure 2 As shown in this embodiment, the limiting member 200 may include a boss, which may be integrally formed with the cylinder 150. The boss may be configured as an annular structure to facilitate airflow. A partition 500 disposed near the boss may abut against the boss via a support rod or other structure, thereby achieving limiting while also being spaced apart from the boss along the axial direction of the cylinder 150, thus improving airflow.

[0060] It is understood that the limiting member 200 in this embodiment includes a boss, and the partition 500 is limited by abutting against the boss.

[0061] More specifically, a leak-proof 600 is provided on the side of the partition 500 near the desiccant 300.

[0062] like Figure 2 As shown in this embodiment, to prevent the desiccant 300 from leaking out of the vent of the partition 500 into the drying chamber 140, a leak-proof component 600 can be provided on the side of the partition 500 near the desiccant 300. The leak-proof component 600 can be made of felt material, which can provide good leak prevention while ensuring that air can pass through smoothly.

[0063] It is understood that, in this embodiment, by providing a leak-proof 600 on the side of the partition 500 near the desiccant 300, the drying effect of the desiccant 300 can be prevented from being affected by leakage.

[0064] More specifically, the mounting part 430 is provided on the cylinder 150, and the air inlet 110 and the air outlet 120 are respectively located at both ends of the side wall of the cylinder 150.

[0065] like Figure 2 As shown in this embodiment, by way of example, the mounting part 430 can be provided on the cylinder 150 so that the heating part 410 is arranged inside the cylinder 150 in a direction perpendicular to the axial direction of the cylinder 150. The air inlet 110 and the air outlet 120 are respectively provided at both ends of the side wall of the cylinder 150, and they can also be provided in a direction perpendicular to the axial direction of the cylinder 150.

[0066] It is understood that in this embodiment, by setting the mounting part 430 on the cylinder 150, and setting the air inlet 110 and the air outlet 120 at both ends of the side wall of the cylinder 150, air can flow through the heating part 410 and the desiccant 300 to facilitate sufficient airflow.

[0067] Specifically, the cylinder 150 is also equipped with a temperature and humidity sensor 800 for detecting the temperature and humidity of the desiccant 300.

[0068] like Figure 1 and Figure 2 As shown in this embodiment, by way of example, the dryer can also detect the humidity of the desiccant 300 in real time via a temperature and humidity sensor 800. The temperature and humidity sensor 800 can be installed on the cylinder 150, and its detection part can pass through the cylinder 150 and be arranged inside the drying chamber 140 to be inserted into the desiccant 300. The temperature and humidity sensor 800 can be connected to the control module, and the temperature and humidity sensor 800 can send the detected humidity of the desiccant 300 to the control module.

[0069] The control module can preset the upper limit threshold of the humidity of the desiccant 300. When the control module receives the humidity of the desiccant 300, it can compare the humidity of the desiccant 300 with the upper limit threshold. If the humidity of the desiccant 300 is greater than the upper limit threshold, it can be determined that the desiccant 300 needs to be regenerated. At this time, the control module can control the air to backflush inside the housing 100.

[0070] Meanwhile, the control module can also preset a lower limit threshold for the humidity of the desiccant 300. When the control module receives the humidity of the desiccant 300, it can compare the humidity of the desiccant 300 with the lower limit threshold. If the humidity of the desiccant 300 is less than the lower limit threshold, it can be determined that the regeneration of the desiccant 300 is complete. At this time, the control module can control the air to stop backflushing within the housing 100.

[0071] The temperature and humidity sensor 800 can also send the detected temperature of the desiccant 300 to the control module. The control module can preset a lower temperature threshold. When the control module receives the temperature of the desiccant 300, it compares the temperature of the desiccant 300 with the lower temperature threshold. If the temperature of the desiccant 300 is lower than the lower temperature threshold, the control module can control the heating element 400 to operate to heat the air. That is to say, in the desiccant 300 regeneration mode, if the temperature of the desiccant 300 is greater than or equal to the lower temperature threshold, the heating element 400 does not need to operate, and the regeneration of the desiccant 300 can be achieved simply by air backflushing; however, if the temperature of the desiccant 300 is lower than the lower temperature threshold, the heating element 400 needs to operate to regenerate the desiccant 300 using hot air.

[0072] It is understood that by setting a temperature and humidity sensor 800, this embodiment can realize the real-time detection of the humidity and temperature of the desiccant 300, so as to regenerate the desiccant 300 in a timely manner and stop the regeneration in a timely manner when the desiccant 300 is regenerated. At the same time, it can also select whether to heat the air with the heating element 400 according to actual needs, thereby enhancing the functionality of the dryer.

[0073] The implementation principle of the dryer provided in Embodiment 1 of this application is as follows:

[0074] Under the air replenishment condition, air can enter the cylinder 150 through the air inlet 130, and the desiccant 300 in the drying chamber 140 can adsorb water molecules in the air. Then the dried air can be discharged through the air outlet 140.

[0075] The temperature and humidity sensor 800 can detect the humidity of the desiccant 300 in real time and send the detected humidity to the control module. The control module compares the humidity of the desiccant 300 with an upper humidity threshold. If the humidity of the desiccant 300 exceeds the upper humidity threshold, it enters the desiccant 300 regeneration mode. In the desiccant 300 regeneration mode, air is backflushed inside the cylinder 150. Air enters the cylinder 150 through the air outlet 140 and exits through the air inlet 130. As the air flows through the drying chamber 140, it carries the moisture from the desiccant 300 out of the shell 100, thus restoring the desiccant 300's drying capacity and achieving desiccant 300 regeneration. Meanwhile, the temperature and humidity sensor 800 can monitor the temperature of the desiccant 300 in real time, and send the detected temperature to the control module. The control module can then compare the temperature of the desiccant 300 with a lower temperature threshold. If the temperature of the desiccant 300 is lower than the lower temperature threshold, the control module can control the heating element 400 to operate, thereby heating the air and achieving the purpose of backflushing with hot air.

[0076] This application directly seals the mounting portion 430 of the heating element 400 onto the housing 100 of the dryer using a potting compound layer, eliminating the need for locking components and sealing rings to achieve a seal between the heating element 400 and the housing 100. This effectively simplifies the installation steps of the heating element 400, improves the convenience of the dryer assembly process, simplifies the dryer design, and reduces product costs.

[0077] Example 2

[0078] Embodiment 2 of this application provides an air suspension system, which includes any of the dryers provided in this application.

[0079] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0080] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A dryer, comprising a housing (100) and a heating element (400), characterized in that, The heating element (400) includes a mounting portion (430) and a heating portion (410) connected to the mounting portion (430). The heating portion (410) is disposed within the inner cavity of the housing (100). The mounting portion (430) is fixedly disposed on the housing (100), and the outer wall of the mounting portion (430) is sealed to the housing (100) by a potting adhesive layer. The mounting part (430) is also provided with a wiring part (420) that is electrically connected to the heating part (410), and the wiring part (420) is located outside the housing (100).

2. The dryer as described in claim 1, characterized in that, The mounting part (430) is at least partially embedded in the housing (100).

3. The dryer as described in claim 1, characterized in that, The housing (100) has a drying chamber (140) filled with desiccant (300) inside, and the housing (100) is provided with an air inlet (110) and an air outlet (120), which are connected through the drying chamber (140). The heating element (410) is located inside the drying chamber (140) or between the air outlet (120) and the drying chamber (140).

4. A dryer as described in claim 3, characterized in that, The housing (100) includes a cylindrical body (150) with open ends and a plug (130) for sealing the ends of the cylindrical body (150), the plug (130) being detachably connected to the cylindrical body (150); The drying chamber (140) is a cavity formed by two opposing partitions (500) and the inner wall of the cylinder (150). The partitions (500) are movably connected to the inner wall of the cylinder (150), and the partitions (500) have ventilation holes. An elastic clamping member (700) is provided between the partition (500) located near the air inlet (110) and the opposite plug (130); The baffle (500) located near the air outlet (120) abuts against the limiting member (200), which is located on the inner wall of the cylinder (150).

5. A dryer as described in claim 4, characterized in that, The elastic clamping member (700) includes a spring, the two ends of which abut against the partition (500) and the plug (130), respectively.

6. A dryer as described in claim 4, characterized in that, The limiting member (200) includes a boss.

7. A dryer as described in claim 4, characterized in that, A leak-proof component (600) is provided on the side of the partition (500) near the desiccant (300).

8. A dryer as described in claim 4, characterized in that, The mounting part (430) is disposed on the cylinder (150), and the air inlet (110) and the air outlet (120) are respectively disposed at both ends of the side wall of the cylinder (150).

9. A dryer as described in claim 4, characterized in that, The cylinder (150) is also equipped with a temperature and humidity sensor (800) for detecting the temperature and humidity of the desiccant (300).

10. An air suspension system, characterized in that, The air suspension system includes a dryer as described in any one of claims 1-9.

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