Dryer and air supply unit
By adopting a design where the drying cylinder and the airway connection cavity arranged in parallel in the dryer is tangent or intersected, the airway structure is simplified and the core extraction process is used to manufacture, which solves the problems of complex structure and difficult process of the existing dryer, and reduces the manufacturing difficulty.
Patent Information
- Application Number
- CN202421418119.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The existing double-barrel parallel dryers have complex structures and are difficult to manufacture. Especially at the airflow channel and sealing connection, special welding is required, and the process is complicated.
The dryer design is adopted, in which two drying cylinders are arranged side by side, tangent or intersected with the inner cavity through the airway connection cavity, simplifying the airway structure and manufacturing using the core extraction process to avoid special welding.
The airway structure is simplified, manufacturing difficulty is reduced, manufacturing efficiency is improved, and the need for special welding is reduced.
Smart Images
Figure CN222889624U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vehicle chassis, in particular to a dryer and an air supply unit. Background Art
[0002] In the integrated air suspension system, in order to obtain dry high-pressure gas, the high-temperature and high-pressure gas output by the compressor generally needs to pass through a dryer to remove the moisture in it. Please refer to Figure 1 , some dryers 01 adopt a double-drum parallel layout, which can make the overall structure more compact.
[0003] However, the airflow channel 02 of the double-tube parallel layout dryer 01 needs to be divided into two and then merged into one, which is a complex structure. This has brought difficulties to the manufacture of the dryer 01. On the other hand, considering the installation of the internal components of the dryer 01, it is generally necessary to set a special-shaped end cover 04 or plug 05 at the end of the shell 03. Due to the high strength and sealing requirements of the dryer 01, the shell 03 and the end cover 04 or plug 05 of the dryer 01 need to be welded by a special welding method, which is difficult and complicated. Summary of the invention
[0004] The utility model aims to provide a dryer and an air supply unit to solve the problems of the existing dryer having a complex structure and difficult process.
[0005] In order to solve the above technical problems, the utility model provides a dryer, which is used in an air supply unit, and the dryer comprises: a connecting portion and two drying cylinders arranged in parallel; the connecting portion is connected and arranged between the two drying cylinders;
[0006] The drying cylinder has an inner cavity extending along a first axis; the connecting portion has an airway connecting cavity extending along a second axis, and the first axis and the second axis are arranged at an angle;
[0007] Wherein, the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders respectively, so that the airway connecting cavity is communicated with the inner cavities of the two drying cylinders respectively.
[0008] Optionally, the inner cavity has a first end and a second end relative to each other along the direction of the first axis, the first end is a closed end, the second end is an open end, and the inner cavity tends to expand from the first end toward the second end; the airway connecting cavity has a third end and a fourth end relative to each other along the direction of the second axis, the third end is a closed end, the fourth end is an open end, and the airway connecting cavity tends to expand from the third end toward the fourth end.
[0009] Optionally, the inner cavity includes a first section, a first diameter-changing section, and a second section connected in sequence along the direction from the first end to the second end; the airway connecting cavity is connected to the first section; the projection of the airway connecting cavity in the direction of the first axis is flush with the outer contour of the second section or is within the second section, and the airway connecting cavity is flush with the outer contour of the first section or is outside the first section along the radial direction of the inner cavity.
[0010] Optionally, the inner cavity further includes a first recessed portion, which is radially arranged outside the outer contour of the first section, and the airway connecting cavity is connected to the first section through the first recessed portion.
[0011] Optionally, the airway connecting cavity includes a third section, a second diameter-changing section, a fourth section and a second recessed portion connected in sequence along the direction from the third end toward the fourth end; the second recessed portion is radially arranged outside the outer contour of the third section, and the inner cavity is connected to the second recessed portion; the projection of the second recessed portion in the direction of the second axis is flush with the outer contour of the fourth section or within the fourth section.
[0012] Optionally, the dryer further includes an end cover and a connecting piece, the end cover is welded to the second end, and the connecting piece is sealed at the fourth end; the connecting piece has a gas channel connected to the airway connecting cavity, and the connecting piece is used to connect to the valve body of the air supply unit.
[0013] Optionally, the second end is circular, and the outer contour of the end cover is also circular and matches the second end; the fourth end is circular, and the outer contour of the connecting member is also circular and matches the fourth end.
[0014] Optionally, the dryer also includes a first sealing ring and a second sealing ring; the first sealing ring is arranged along the circumference of the connecting piece, and the connecting piece is sealed and connected to the cavity wall of the airway connecting cavity through the first sealing ring; the second sealing ring is arranged along the axial or circumferential direction of the connecting piece, and the connecting piece is used to be sealed and connected to the valve body of the air supply unit through the second sealing ring.
[0015] Optionally, the air duct connecting cavity is configured as an air inlet end and / or an air outlet end of the dryer.
[0016] In order to solve the above technical problems, the utility model also provides an air supply unit, which includes the dryer as described above and also includes a valve body; the dryer is connected to the airway of the valve body through the airway connecting cavity.
[0017] To summarize, in the dryer and air supply unit provided by the utility model, the dryer includes a connecting portion and two drying cylinders arranged in parallel; the connecting portion is connected and arranged between the two drying cylinders; the drying cylinder has an inner cavity extending along a first axis; the connecting portion has an airway connecting cavity extending along a second axis, and the first axis is arranged at an angle to the second axis; wherein the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders, respectively, so that the airway connecting cavity is connected to the inner cavities of the two drying cylinders, respectively.
[0018] With such configuration, the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders respectively, so that the airway connecting cavity can be directly connected to the inner cavities of the two drying cylinders, thereby simplifying the airway and facilitating manufacturing by core pulling and the like, thereby avoiding the need to open complex airflow channels on the drying cylinder, avoiding the problem of having to use special welding methods for the drying cylinder, and reducing the difficulty of the process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Those skilled in the art will appreciate that the drawings are provided for a better understanding of the present invention and do not constitute any limitation on the scope of the present invention.
[0020] Figure 1 A schematic diagram of a dryer.
[0021] Figure 2 Schematic diagram of an air supply unit according to an embodiment of the present utility model.
[0022] Figure 3 It is a schematic cross-sectional view of the dryer of the embodiment of the utility model along the first axis direction.
[0023] Figure 4 It is a schematic cross-sectional view of a drying cylinder and a connecting portion of an embodiment of the utility model along the first axis direction.
[0024] Figure 5 It is a schematic cross-sectional view of the drying cylinder and the connecting portion of an embodiment of the utility model along the second axis direction.
[0025] Figure 6 It is a top view of the dryer according to an embodiment of the utility model.
[0026] Figure 7 It is a cross-sectional schematic diagram of the dryer of the embodiment of the utility model along the second axis direction.
[0027] Figure 8 It is a schematic diagram of the first mold core and the second mold core of an embodiment of the utility model.
[0028] Fig. 9It is a schematic diagram of the first mold core, the second mold core, the drying cylinder and the connecting part during the core pulling process of an embodiment of the utility model.
[0029] Fig.10 It is a cross-sectional schematic diagram of the first mold core, the second mold core, the drying cylinder and the connecting part along the first axis direction during the core pulling process of the embodiment of the utility model.
[0030] Fig.11 It is a cross-sectional schematic diagram of the first mold core, the second mold core, the drying cylinder and the connecting part along the second axis direction during the core pulling process of the embodiment of the utility model.
[0031] In the attached figure: 01-dryer; 02-air flow channel; 03-housing; 04-end cover; 05-plug; 10-valve body; 11-compressor; 20-dryer; 21-inlet end; 22-outlet end; 23-drying cylinder; 230-inner cavity; 2301-first section; 2302-first diameter-changing section; 2303-second section; 2304-first recessed portion; 231-first end; 232-second end; 233-first orifice plate; 234-first filter disc; 235-desiccant; 236-second filter disc; 2 37-second orifice plate; 238-spring; 239-end cover; 24-connecting part; 240-airway connecting cavity; 2401-third section; 2402-second diameter-changing area; 2403-fourth section; 2404-second recessed part; 241-connecting piece; 242-gas channel; 243-third end; 244-fourth end; 245-one-way valve; 251-first sealing ring; 252-second sealing ring; 27-bolt hole; 30-driver; 40-controller; 51-first core; 52-second core. DETAILED DESCRIPTION
[0032] In order to make the purpose, advantages and features of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and are not drawn to scale, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model. In addition, the structure shown in the drawings is often a part of the actual structure. In particular, the emphasis of each drawing is different, and sometimes different scales are used.
[0033] As used in the present invention, the singular forms "one", "an", "one" and "the" include plural objects, the term "or" is usually used to include the meaning of "and / or", the term "several" is usually used to include the meaning of "at least one", and the term "at least two" is usually used to include the meaning of "two or more". In addition, the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features, "one end" and "the other end" as well as "proximal end" and "distal end" generally refer to two corresponding parts, which include not only endpoints. In addition, as used in the present invention, "installed", "connected", "connected", and one element "set" on another element should be understood in a broad sense, usually only indicating that there is a connection, coupling, cooperation or transmission relationship between the two elements, and the connection, coupling, cooperation or transmission between the two elements can be direct or indirect through an intermediate element, and cannot be understood as indicating or implying the spatial position relationship between the two elements, that is, one element can be in any orientation such as inside, outside, above, below or one side of another element, unless the content clearly indicates otherwise. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, directional terms such as above, below, up, down, upward, downward, left, right, etc. are used relative to the exemplary embodiments as shown in the figures, with the upward or upper direction toward the top of the corresponding figure, and the downward or lower direction toward the bottom of the corresponding figure.
[0034] The purpose of the utility model is to provide a dryer and an air supply unit to solve the problems of the existing dryer having a complex structure and a difficult process.
[0035] Please refer to Figure 2 and Figure 3 , an embodiment of the utility model provides an air supply unit, which includes: a valve body 10 and a dryer 20, and the dryer 20 is connected to the valve body 10. Further, the air supply unit also includes a driver 30 and a controller 40, and the dryer 20, the driver 30 and the controller 40 are respectively connected to the valve body 10. The valve body 10 has a compressor 11 inside, which is used to drive the compressor 11 to output compressed gas. Optionally, the dryer 20 has a bolt hole 27, and the dryer 20 can be connected to the valve body 10 by passing a bolt through the bolt hole 27. The specific structure and principle of the valve body 10, the driver 30 and the controller 40 can refer to the prior art, and the utility model will not be described in detail.
[0036] Furthermore, the valve body 10 has an air passage (not shown), and the dryer 20 has an air inlet end 21 and an air outlet end 22. The dryer 20 is connected to the air passage of the valve body 10 through the air inlet end 21 and the air outlet end 22. After the dryer 20 is assembled and connected to the valve body 10, the compressed gas output by the compressor 11 flows into the dryer 20 from the air inlet end 21 through the air passage, and after being dried by the dryer 20, flows out from the air outlet end 22 to the valve body 10, and then is transmitted to the air storage tank or the air spring through the air passage and the connection port on the valve body 10.
[0037] Please refer to Figures 2 to 7 In order to solve the problem that the dryer 20 has a complex structure and a difficult process, the dryer 20 provided by the utility model includes a connecting portion 24 and two drying cylinders 23 arranged in parallel; the connecting portion 24 is connected and arranged between the two drying cylinders 23; the drying cylinder 23 has an inner cavity 230 extending along the first axis A1; the connecting portion 24 has an airway connecting cavity 240 extending along the second axis A2, and the first axis A1 and the second axis A2 are arranged at an angle; wherein the airway connecting cavity 240 is tangent to or intersects with the inner cavities 230 of the two drying cylinders 23, respectively, so that the airway connecting cavity 240 is connected with the inner cavities 230 of the two drying cylinders 23, respectively. Further, the airway connecting cavity 240 is configured as the air inlet end 21 and / or the air outlet end 22 of the dryer 20, and the dryer 20 is connected to the airway of the valve body 10 through the airway connecting cavity 240.
[0038] With such configuration, the airway connecting cavity 240 is tangent to or intersects with the inner cavities 230 of the two drying cylinders 23 respectively, so that the airway connecting cavity 240 can be directly connected with the inner cavities 230 of the two drying cylinders 23, thereby simplifying the airway and facilitating manufacturing by core pulling and the like, thereby avoiding the need to open a complex airflow channel on the drying cylinder 23, avoiding the problem of having to adopt a special welding method for the drying cylinder 23, and reducing the process difficulty.
[0039] It should be noted that the two drying cylinders 23 are arranged in parallel here, which may mean that the axes of the two drying cylinders 23 (i.e., the first axis A1) are parallel to each other, but it is not limited to this. In some embodiments, the axes of the two drying cylinders 23 may also be slightly angled to each other. For example, when the angle between the axes of the two drying cylinders 23 is within 30°, the two drying cylinders 23 should be regarded as being arranged in parallel. The first axis A1 and the second axis A2 are arranged at an angle, for example, it can be 60°~90°, preferably 90°, that is, the first axis A1 is perpendicular to the second axis A2.
[0040] Please refer to Figures 3 to 5In one embodiment, the inner cavity 230 has a first end 231 and a second end 232 relative to each other along the direction of the first axis A1, the first end 231 is a closed end, the second end 232 is an open end, and the inner cavity 230 has a tendency to expand from the first end 231 toward the second end 232; the airway connecting cavity 240 has a third end 243 and a fourth end 244 relative to each other along the direction of the second axis A2, the third end 243 is a closed end, the fourth end 244 is an open end, and the airway connecting cavity 240 has a tendency to expand from the third end 243 toward the fourth end 244.
[0041] It should be noted that the expansion trend described here refers to the inner cavity 230 as an example. Taking any cross section of the inner cavity 230 as a reference plane, the cross section on the second end 232 side of the reference plane is not less than the cross section on the first end 231 side of the reference plane. In other words, the inner cavity 230 can be expanded from the first end 231 to the second end 232, or it can remain unchanged, or it can include a number of expanded sections or a number of unchanged sections, but there cannot be a section that shrinks from the first end 231 to the second end 232. In this way, the inner cavity 230 has an expansion trend from the first end 231 to the second end 232, which is convenient for manufacturing using a core pulling process (see for details). Figure 8~Figure 11 And refer to the description of the core pulling process below), on the other hand, it is also convenient for the installation of the internal components of the drying cylinder 23.
[0042] Please refer to Figures 8 to 11 , which exemplarily shows an example of manufacturing a dryer by a core pulling process. In some embodiments, the drying cylinder 23 can be formed by injection molding, and its inner cavity 230 and the airway connecting cavity 240 are formed by a core pulling process. Specifically, a first mold core 51 and a second mold core 52 are provided, which are respectively arranged in the injection molding cavity along the direction of the first axis A1 and the second axis A2. The outer contour shape of the first mold core 51 is adapted to the shape of the inner cavity 230 to be molded, and the first mold core 51 has an expansion trend from the first end 231 to the direction of the second end 232. The outer contour shape of the second mold core 52 is adapted to the shape of the airway connecting cavity 240 to be molded, and the second mold core 52 has an expansion trend from the third end 243 to the direction of the fourth end 244. With such a configuration, after injection molding, the first mold core 51 can be smoothly pulled out from the first end 231 to the direction of the second end 232 without being hindered, and the second mold core 52 can be smoothly pulled out from the third end 243 to the direction of the fourth end 244 without being hindered. After the first mold core 51 and the second mold core 52 are pulled out, the inner cavity 230 and the airway connecting cavity 240 are respectively formed.
[0043] Furthermore, the dryer 23 further includes an end cap 239, which is used to be sealed and arranged at the second end 232 after the internal components are installed, thereby sealing the inner cavity 230. Preferably, the end cap 239 is welded to the second end 232. Preferably, the second end 232 is circular, and the outer contour of the end cap 239 is also circular and matches the second end 232, so that the weld between the end cap 239 and the second end 232 is a regular circle, and conventional welding processes such as ultrasonic welding or laser welding can be applied, avoiding the need to use a special welding method due to irregular welds.
[0044] Combine the following Figure 3 and Figure 4 , the internal components of the drying cylinder 23 and the installation process thereof are described as an example. Figure 3 In the illustrated example, the internal components of the drying cylinder 23 include a first orifice plate 233, a first filter disc 234, a desiccant 235, a second filter disc 236, a second orifice plate 237, and a spring 238, which are sequentially arranged in the inner cavity 230 along the axial direction of the drying cylinder 23. The first orifice plate 233 and the second orifice plate 237 are preferably evenly provided with a plurality of vents so that the airflow flows evenly. The first filter disc 234 and the second filter disc 236 are used to filter the gas flowing through to prevent the dust of the desiccant 235 from flowing out and the external particles from entering. The spring 238 is provided to provide a pre-tightening force (such as pressure) to the second orifice plate 237 to compact the desiccant 235 accommodated between the first orifice plate 233 and the second orifice plate 237 to reduce the wear of the desiccant 235.
[0045] Since the first end 231 of the inner cavity 230 is a closed end and the second end 232 is an open end, the internal components of the drying cylinder 23 can be sequentially placed into the inner cavity 230 via the second end 232 in the arrangement order. It can be further understood that the inner cavity 230 has an expansion trend from the first end 231 toward the second end 232, which can facilitate the installation of the internal components into the inner cavity 230 from the second end 232.
[0046] Please continue to refer to Figure 3 and Figure 4 Preferably, the inner cavity 230 includes a first section 2301, a first diameter-changing section 2302 and a second section 2303 connected in sequence along the direction from the first end 231 to the second end 232; the airway connecting cavity 240 is connected to the first section 2301; the projection of the airway connecting cavity 240 in the direction of the first axis A1 is flush with the outer contour of the second section 2303 or is within the second section 2303, and the airway connecting cavity 240 is flush with the outer contour of the first section 2301 or is outside the first section 2301 along the radial direction of the inner cavity 230.
[0047] In one embodiment, the cross section of the inner cavity 230 is roughly circular, and the cross section of the airway connecting cavity 240 is also roughly circular. It can be understood that since the inner cavity 230 has an expansion trend from the first end 231 to the second end 232, the inner diameter of the first section 2301 is smaller than the inner diameter of the second section 2303, and the first diameter-changing area 2302 expands and changes toward the second end 232 to connect the first section 2301 and the second section 2303. In some embodiments, the first diameter-changing area 2302 can be a step-shaped mutation, and in other embodiments, the first diameter-changing area 2302 can also be a ramp-shaped slow change, or a curved transition change, etc.
[0048] Preferably, the connecting part between the airway connecting cavity 240 and the inner cavity 230 is formed by core pulling of the first mold core 51 and the second mold core 52, that is, before the first mold core 51 and the second mold core 52 are pulled out, the first mold core 51 and the second mold core 52 are pressed against each other, and the pulling out process of each of them should not affect each other. The airway connecting cavity 240 is flush with the outer contour of the first section 2301 along the radial direction of the inner cavity 230 or outside the first section 2301, that is, the second mold core 52 will not invade the first section 2301 at the position corresponding to the first section 2301, so as not to hinder the pulling out process of the first mold core 51. Furthermore, the projection of the airway connection cavity 240 in the direction of the first axis A1 is set to be flush with the outer contour (i.e., the outer circumference) of the second section 2303 or within the second section 2303, which is equivalent to allowing the second mold core 52 to properly penetrate into the position corresponding to the second section 2303, ensuring that the airway connection cavity 240 can have an overlapping area with the inner cavity 230 in the direction of the first axis A1 to achieve communication. Since the inner diameter of the second section 2303 is greater than the inner diameter of the first section 2301, the part of the second mold core 52 that penetrates into the second section 2303 will not hinder the extraction process of the first mold core 51. Such a configuration not only ensures that the first mold core 51 can be smoothly extracted without obstruction, but also ensures that the airway connection cavity 240 and the inner cavity 230 have an overlapping area to achieve communication.
[0049] Furthermore, the inner cavity 230 further includes a first recessed portion 2304, which is radially arranged outside the outer contour of the first section 2301, and the airway connecting cavity 240 is connected to the first section 2301 through the first recessed portion 2304. It can be understood that since the first axis A1 and the second axis A2 are arranged at an angle, the extraction directions of the first mold core 51 and the second mold core 52 are also different. If the airway connecting cavity 240 is directly arranged tangent to the first section 2301, only a linear tangent can be formed, forming a slit-shaped connecting port. The provision of the first recessed portion 2304 can effectively expand the connecting port between the airway connecting cavity 240 and the first section 2301.
[0050] Please refer to Figures 5 to 7 Optionally, the dryer 23 further includes a connector 241, which is used to block the fourth end 244 of the airway connecting cavity 240; the connector 241 has a gas channel 242 connected to the airway connecting cavity 240, and the connector 241 is used to connect to the valve body 10 of the air supply unit. It can be understood that the airway connecting cavity 240 has an expansion trend from the third end 243 to the fourth end 244, which is convenient for manufacturing by core pulling process (see the above description for details) on the one hand, and convenient for installation of the connector 241 on the other hand. Preferably, the fourth end 244 is circular, and the outer contour of the connector 241 is also circular and matches the fourth end 244.
[0051] Preferably, the airway connecting cavity 240 includes a third section 2401, a second diameter-changing section 2402, a fourth section 2403 and a second recessed portion 2404 connected in sequence along the direction from the third end 243 to the fourth end 244; the second recessed portion 2404 is radially arranged outside the outer contour of the third section 2401, and the inner cavity 230 is connected to the second recessed portion 2404; the projection of the second recessed portion 2404 in the direction of the second axis A2 is flush with the outer contour of the fourth section 2403 or is within the fourth section 2403.
[0052] It can be understood that, since the airway connecting cavity 240 has an expansion trend from the third end 243 toward the fourth end 244, the inner diameter of the third section 2401 is smaller than the inner diameter of the fourth section 2403, and the second diameter-changing area 2402 expands and changes toward the fourth end 244 to connect the third section 2401 and the fourth section 2403. In some embodiments, the second diameter-changing area 2402 may be a step-shaped mutation, and in other embodiments, the second diameter-changing area 2402 may also be a ramp-shaped slow change, or a curved transition change, etc.
[0053] Similar to the principle of the first recessed portion 2304, the second recessed portion 2404 can effectively expand the communication port between the third section 2401 and the inner cavity 230 (actually, the first recessed portion 2304). The projection of the second recessed portion 2404 in the direction of the second axis A2 is flush with the outer contour of the fourth section 2403 or within the fourth section 2403, thereby ensuring that the extraction process of the second mold core 52 will not be hindered.
[0054] Preferably, the dryer also includes a first sealing ring 251 and a second sealing ring 252; the first sealing ring 251 is arranged along the circumference of the connecting piece 241, and the connecting piece 241 is sealed and connected to the cavity wall of the airway connecting cavity 240 through the first sealing ring 251; the second sealing ring 252 is arranged along the axial or circumferential direction of the connecting piece 241, and the connecting piece 241 is used to be sealed and connected to the valve body 10 of the air supply unit through the second sealing ring 252.
[0055] In an alternative exemplary embodiment, a portion of the connector 241 is inserted into the airway connection cavity 240, and preferably, the connector 241 and the fourth section 2403 have matching concave and convex shapes. Further, the portion of the connector 241 inserted into the airway connection cavity 240 has a sealing ring accommodating groove opened circumferentially, and the first sealing ring 251 is accommodated in the sealing ring accommodating groove. Thus, the connector 241 can be sealed and connected to the cavity wall of the airway connection cavity 240 through the first sealing ring 251, thereby closing the airway connection cavity 240. A portion of the connector 241 extending out of the airway connection cavity 240 has a step groove opened circumferentially or axially, and the second sealing ring 252 can be sleeved on the step groove. Correspondingly, the corresponding portion of the valve body 10 has a recessed connection port, and a portion of the connector 241 extending out of the airway connection cavity 240 can be sealed and connected to the connection port of the valve body 10 through the second sealing ring 252. Therefore, the airway connecting cavity 240 is connected to the valve body 10 only through the gas channel 242, thereby reducing or avoiding leakage.
[0056] In some application scenarios, the airway connecting cavity 240 is configured with the air inlet end 21 of the dryer 20, that is, at this time, the airway connecting cavity 240 is connected to the valve body 10 through the corresponding connector 241, and is used to supply gas to flow into the inner cavity 230. In other application scenarios, the airway connecting cavity 240 is configured with the air outlet end 22 of the dryer 20, that is, at this time, the airway connecting cavity 240 is connected to the valve body 10 through the corresponding connector 241, and is used to supply gas to flow out of the inner cavity 230. Optionally, in some embodiments, one of the air inlet end 21 and the air outlet end 22 is provided with the airway connecting cavity 240 and the corresponding connector 241, and the other can adopt a traditional air flow channel and an end cover or a plug. In other embodiments, the air inlet end 21 and the air outlet end 22 of the dryer 20 can be respectively provided with the airway connecting cavity 240 and the corresponding connector 241, that is, the air inlet end 21 and the air outlet end 22 are improved at the same time.
[0057] Preferably, the connector 241 has a one-way valve 245, and the one-way valve 245 is arranged in the gas channel 242 to control the flow direction of the gas. Specifically, the one-way valve 245 can be arranged according to the corresponding gas flow direction. For example, in one embodiment, when the airway connecting cavity 240 is configured with the gas outlet end 22 of the dryer 20, the one-way valve 245 of the connector 241 corresponding to the airway connecting cavity 240 is configured to only allow gas to flow from the airway connecting cavity 240 to the outside of the connector 241, and restrict gas from flowing from the outside of the connector 241 to the airway connecting cavity 240.
[0058] Based on the dryer 20 and the air supply unit described above, the embodiment of the utility model further provides an air suspension system, which includes the air supply unit described above, and optionally also includes air springs, shock absorbers, guide mechanisms, sensors, air tanks and other components. The structures and principles of these components can refer to the prior art, and will not be described in detail in this embodiment. The embodiment of the utility model further provides a vehicle, which includes the air suspension system described above.
[0059] In summary, in the dryer and air supply unit provided by the utility model, the dryer includes a connecting portion and two drying cylinders arranged in parallel; the connecting portion is connected and arranged between the two drying cylinders; the drying cylinder has an inner cavity extending along a first axis; the connecting portion has an airway connecting cavity extending along a second axis, and the first axis and the second axis are arranged at an angle; wherein the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders, respectively, so that the airway connecting cavity is connected to the inner cavities of the two drying cylinders, respectively. With such a configuration, the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders, respectively, so that the airway connecting cavity can be directly connected to the inner cavities of the two drying cylinders, thereby simplifying the airway and facilitating manufacturing by means of core pulling and the like, thereby avoiding the need to open a complex airflow channel on the drying cylinder, avoiding the problem that the drying cylinder must adopt a special welding method, and reducing the process difficulty.
[0060] It should be noted that the above embodiments can be combined with each other. The above description is only a description of the preferred embodiments of the utility model, and does not limit the scope of the utility model. Any changes and modifications made by ordinary technicians in the field of the utility model based on the above disclosure are within the protection scope of the utility model.
Claims
1. A dryer for an air supply unit, characterized in that: include: A connecting part and two drying cylinders arranged in parallel; the connecting part is connected and arranged between the two drying cylinders; The drying cylinder has an inner cavity extending along a first axis; the connecting portion has an airway connecting cavity extending along a second axis, and the first axis and the second axis are arranged at an angle; Wherein, the airway connecting cavity is tangent to or intersects with the inner cavities of the two drying cylinders respectively, so that the airway connecting cavity is communicated with the inner cavities of the two drying cylinders respectively.
2. The dryer according to claim 1, characterized in that The inner cavity has a first end and a second end relative to each other along the direction of the first axis, the first end is a closed end, the second end is an open end, and the inner cavity has a tendency to expand from the first end toward the second end; the airway connecting cavity has a third end and a fourth end relative to each other along the direction of the second axis, the third end is a closed end, the fourth end is an open end, and the airway connecting cavity has a tendency to expand from the third end toward the fourth end.
3. The dryer according to claim 2, characterized in that The inner cavity includes a first section, a first diameter-changing section, and a second section connected in sequence along the direction from the first end to the second end; the airway connecting cavity is connected to the first section; the projection of the airway connecting cavity in the direction of the first axis is flush with the outer contour of the second section or is within the second section, and the airway connecting cavity is flush with the outer contour of the first section or is outside the first section along the radial direction of the inner cavity.
4. The dryer according to claim 3, characterized in that The inner cavity further includes a first recessed portion, which is radially arranged outside the outer contour of the first section, and the airway connecting cavity is connected to the first section through the first recessed portion.
5. The dryer according to claim 2, characterized in that: The airway connecting cavity includes a third section, a second diameter-changing section, a fourth section and a second recessed portion connected in sequence along the direction from the third end toward the fourth end; the second recessed portion is radially arranged outside the outer contour of the third section, and the inner cavity is connected to the second recessed portion; the projection of the second recessed portion in the direction of the second axis is flush with the outer contour of the fourth section or within the fourth section.
6. The dryer according to claim 2, characterized in that The dryer also includes an end cover and a connector, the end cover is welded to the second end, and the connector is sealed at the fourth end; the connector has a gas channel connected to the airway connecting cavity, and the connector is used to connect to the valve body of the air supply unit.
7. The dryer according to claim 6, characterized in that The second end is circular, and the outer contour of the end cover is also circular and matches the second end; the fourth end is circular, and the outer contour of the connecting member is also circular and matches the fourth end.
8. The dryer according to claim 6, characterized in that The dryer also includes a first sealing ring and a second sealing ring; the first sealing ring is arranged along the circumference of the connecting piece, and the connecting piece is sealed and connected to the cavity wall of the airway connecting cavity through the first sealing ring; the second sealing ring is arranged along the axial or circumferential direction of the connecting piece, and the connecting piece is used to be sealed and connected to the valve body of the air supply unit through the second sealing ring.
9. The dryer according to claim 1, characterized in that The air channel connecting cavity is configured as an air inlet end and / or an air outlet end of the dryer.
10. An air supply unit, characterized in that: It comprises the dryer according to any one of claims 1 to 9, and also comprises a valve body; the dryer is connected to the airway of the valve body through the airway connecting cavity.