Air drying device and air suspension system

Abstract

The utility model relates to the technical field of vehicles, and provides an air drying device and an air suspension system. The utility model provides an air drying device which comprises a first containing cavity, a second containing cavity, a first opening, a plurality of communicating holes and a second opening. The first accommodating cavity and the second accommodating cavity are used for accommodating molecular sieves capable of drying air; the first opening can communicate with the second opening through the first containing cavity, the communicating holes and the second containing cavity in sequence, and the first opening is used for communicating with an air outlet of the compressor; the second opening is used for communicating with an air inlet of an air supply device; the air drying device can enable the molecular sieves to be located outside the communicating holes in the state that the molecular sieves are contained in the first containing cavity and the second containing cavity. The technical problem that the efficiency of the compressor is affected due to the fact that the molecular sieves in the communicating holes hinder air flow in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an air drying device and an air suspension system. Background Art

[0002] A compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas. Taking the vehicle's air suspension system as an example, the air suspension system includes a compressor and an air-using device. The air outlet of the compressor can be connected to the air-using device (such as an air bag), and air is supplied to the air-using device through the compressor to change the height of the vehicle. In addition, since humid air can have an adverse effect on the air-using device, the air suspension system also includes a drying device, which is usually connected between the air outlet of the compressor and the air-using device.

[0003] The drying device of the prior art includes a drying tank, the interior of which is divided into a first accommodating chamber and a second accommodating chamber by a partition, the first accommodating chamber and the second accommodating chamber are connected by a connecting hole, and molecular sieves for drying air are provided in the first accommodating chamber and the second accommodating chamber. After being compressed by a compressor, the air enters the first accommodating chamber and is dried by the molecular sieve in the first accommodating chamber. After being dried, the air enters the second accommodating chamber through the connecting hole to continue drying, and then flows to the gas-using device after drying.

[0004] However, since the molecular sieve is small, it will fill the connecting hole. Therefore, if the air in the first accommodating chamber needs to enter the second accommodating chamber through the connecting hole, it needs to bypass multiple molecular sieves in the connecting hole before entering the second accommodating chamber. Therefore, in the process of air entering the second accommodating chamber from the first accommodating chamber, the molecular sieve in the connecting hole will hinder the air flow, increase the air resistance, and affect the efficiency of the compressor. Utility Model Content

[0005] The utility model provides an air drying device and an air suspension system, which are used to solve the technical problem in the prior art that the molecular sieve in the connecting hole hinders the air flow, thus affecting the efficiency of the compressor.

[0006] The utility model provides an air drying device, comprising a first accommodating chamber, a second accommodating chamber, a first opening, a plurality of connecting holes and a second opening; the first accommodating chamber and the second accommodating chamber are used to accommodate a molecular sieve capable of drying air; the first opening can be connected to the second opening via the first accommodating chamber, the plurality of connecting holes and the second accommodating chamber in sequence, the first opening being used to connect to an air outlet of a compressor; the second opening being used to connect to an air inlet of an air-conditioning device; wherein, when the molecular sieve is accommodated in the first accommodating chamber and the second accommodating chamber, the molecular sieve is located outside the connecting hole.

[0007] According to one embodiment of the present invention, the width of the connecting pores is smaller than the diameter of the molecular sieve.

[0008] According to one embodiment of the utility model, the air drying device includes a first accommodating unit, a second accommodating unit and a drag reduction structure; the first accommodating unit has a first through hole that can be connected to the first accommodating cavity; the first accommodating cavity and the first opening are arranged in the first accommodating unit; the second accommodating unit has a second through hole that can be connected to the second accommodating cavity; the second accommodating cavity and the second opening are arranged in the second accommodating unit; a plurality of connecting holes are arranged in the drag reduction structure; one end of the drag reduction structure is arranged in the first through hole; the other end of the drag reduction structure is arranged in the second through hole; the connecting hole passes through the first through hole and the second through hole.

[0009] According to an embodiment of the present invention, the cross-section of the drag reduction structure is circular, and the drag reduction structure extends from the side wall of the first accommodating unit to the side wall of the second accommodating unit.

[0010] According to one embodiment of the present invention, the first through hole is located in the middle of the outer peripheral wall of the end of the first accommodating unit; the second through hole is located in the middle of the outer peripheral wall of the end of the second accommodating unit.

[0011] According to an embodiment of the present utility model, the first accommodating chamber, the second accommodating chamber and the connecting hole are arranged along the height direction of the air drying device; and the connecting hole is set as an oblong hole.

[0012] According to one embodiment of the utility model, a plurality of connecting holes are arranged in sequence along the width direction of the connecting holes; the plurality of connecting holes include at least one first connecting hole and a plurality of second connecting holes; at least one second connecting hole is provided on each side of the first connecting hole; the number of the second connecting holes on both sides of the first connecting hole is the same; the length of the first connecting hole is greater than the length of the second connecting hole.

[0013] According to one embodiment of the utility model, it also includes a first filter unit, which is located in the first accommodating cavity, covers the first opening, and is connected to the cavity wall of the first accommodating cavity. When the molecular sieve is placed in the first accommodating cavity, the first filter unit abuts against the surface of the molecular sieve to make the molecular sieve in a compacted state.

[0014] According to one embodiment of the utility model, it also includes a second filter unit, which is located in the second accommodating chamber, covers the second opening, and is connected to the cavity wall of the second accommodating chamber. When the molecular sieve is placed in the second accommodating chamber, the second filter unit abuts against the surface of the molecular sieve to make the molecular sieve in a compacted state.

[0015] The utility model also provides an air suspension system, comprising: the air drying device of the above embodiment.

[0016] The features and advantages of the air drying device and air suspension system of the utility model are:

[0017] When the first accommodating chamber and the second accommodating chamber are provided with molecular sieves, the molecular sieves are located outside the connecting hole, that is, there is no molecular sieve in the connecting hole, and the molecular sieves will not hinder the flow of air, thereby ensuring the smooth flow of air from the first accommodating chamber to the second accommodating chamber. The flow of air will not be obstructed, and compared with the prior art, the air flow is smoother, which can improve the efficiency of the compressor. The technical problem of affecting the efficiency of the compressor due to the molecular sieve in the connecting hole hindering the air flow in the prior art is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional schematic diagram of the air drying device of the utility model.

[0020] Figure 2 It is a main schematic diagram of the air drying device of the utility model.

[0021] Figure 3 It is a top view schematic diagram of the air drying device of the utility model.

[0022] Figure 4 This utility model Figure 3 Cross-sectional view along AA direction.

[0023] Reference numerals:

[0024] 100, first accommodating unit; 110, first accommodating cavity; 120, first opening; 200, second accommodating unit; 210, second accommodating cavity; 220, second opening; 300, drag reduction structure; 310, connecting hole; 311, first connecting hole; 312, second connecting hole; H, height direction of the air drying device; W, width direction of the connecting hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0029] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0030] Figures 1 to 4The air drying device and air suspension system provided by the utility model are shown. As can be seen from the figure, the air drying device of the utility model includes a first accommodating chamber 110, a second accommodating chamber 210, a first opening 120, a plurality of connecting holes 310 and a second opening 220; the first accommodating chamber 110 and the second accommodating chamber 210 are used to accommodate molecular sieves that can dry air; the first opening 120 can be connected to the second opening 220 through the first accommodating chamber 110, the plurality of connecting holes 310 and the second accommodating chamber 210 in sequence, and the first opening 120 is used to connect to the air outlet of the compressor; the second opening 220 is used to connect to the air inlet of the air-conditioning device; wherein, when the molecular sieves are accommodated in the first accommodating chamber 110 and the second accommodating chamber 210, the molecular sieves are located outside the connecting holes 310.

[0031] During specific implementation, when the molecular sieves are contained in the first accommodating chamber 110 and the second accommodating chamber 210, the molecular sieves are located outside the connecting hole 310, that is, there is no molecular sieve in the connecting hole 310, and the molecular sieves will not hinder the flow of air, thereby ensuring the smooth flow of air from the first accommodating chamber 110 to the second accommodating chamber 210, and the flow of air will not be blocked. Compared with the prior art, the air flow is smoother, which can improve the efficiency of the compressor. The technical problem of affecting the efficiency of the compressor due to the molecular sieve in the connecting hole 310 hindering the air flow in the prior art is solved.

[0032] In this embodiment, the first accommodating chamber 110 and the second accommodating chamber 210 may be columnar, and the connecting hole 310 may pass through the first accommodating chamber 110 and the second accommodating chamber 210; the first opening 120 and the second opening 220 may be located at two ends of the air drying device; the width of the connecting hole 310 is smaller than the diameter of the molecular sieve.

[0033] According to one embodiment of the utility model, the air drying device includes a first accommodating unit 100, a second accommodating unit 200 and a drag reduction structure 300; the first accommodating unit 100 has a first through hole that can be connected to the first accommodating chamber 110; the first accommodating chamber 110 and the first opening 120 are arranged in the first accommodating unit 100; the second accommodating unit 200 has a second through hole that can be connected to the second accommodating chamber 210; the second accommodating chamber 210 and the second opening 220 are arranged in the second accommodating unit 200; a plurality of connecting holes 310 are arranged in the drag reduction structure 300; one end of the drag reduction structure 300 is arranged in the first through hole; the other end of the drag reduction structure 300 is arranged in the second through hole; the connecting hole 310 passes through the first through hole and the second through hole.

[0034] In specific implementation, after being compressed by the compressor, the air can enter the first accommodating chamber 110 through the first opening 120 of the first accommodating unit 100. After entering the first accommodating chamber 110, the air can sequentially pass through the first through hole, the connecting hole 310 of the drag reduction structure 300 and the second through hole to enter the second accommodating chamber 210. After entering the second accommodating chamber 210, the air can flow from the second opening 220 to the air-using device.

[0035] In this embodiment, the first through hole may be located at the middle position of the outer peripheral wall at the end of the first accommodating unit 100 ; and the second through hole is located at the middle position of the outer peripheral wall at the end of the second accommodating unit 200 .

[0036] According to one embodiment of the utility model, the first accommodating unit 100, the second accommodating unit 200 and the drag reduction structure 300 can be set as an integrated molding structure, which is convenient for production and manufacturing and can save production costs; and the utility model does not need to set up a metal mesh, so no assembly is required, which can reduce assembly costs.

[0037] According to one embodiment of the present invention, the cross-section of the drag reduction structure 300 is circular, and the drag reduction structure 300 extends from the side wall of the first accommodating unit 100 to the side wall of the second accommodating unit 200. For example, the first accommodating unit 100 and the second accommodating unit 200 can be arranged vertically and arranged side by side in the horizontal direction; the drag reduction structure 300 can be extended in the horizontal direction.

[0038] According to an embodiment of the present invention, the first accommodating chamber 110, the second accommodating chamber 210 and the connecting hole 310 are arranged along the height direction H of the air drying device; and the connecting hole 310 is arranged as an oblong hole.

[0039] In specific implementation, by setting the connecting hole 310 as an oblong hole, the area of ​​the connecting hole 310 can be increased, further ensuring the smooth flow of air from the first accommodating chamber 110 to the second accommodating chamber 210, and the flow of air will not be blocked. In addition, the oblong hole is set as a relatively smooth hole wall compared to a square hole, which can avoid stress concentration and damage to the hole wall of the connecting hole 310.

[0040] According to one embodiment of the utility model, a plurality of connecting holes 310 are arranged in sequence along the width direction W of the connecting holes 310; the plurality of connecting holes 310 include at least one first connecting hole 311 and a plurality of second connecting holes 312; at least one second connecting hole 312 is provided on each side of the first connecting hole 311; the number of the second connecting holes 312 on both sides of the first connecting hole 311 is the same; the length of the first connecting hole 311 is greater than the length of the second connecting hole 312.

[0041] According to one embodiment of the utility model, the air drying device of the utility model may also include a first filter unit, which is located in the first accommodating chamber 110, covers the first opening 120, and is connected to the cavity wall of the first accommodating chamber 110. When the molecular sieve is placed in the first accommodating chamber 110, the first filter unit abuts against the surface of the molecular sieve to make the molecular sieve in a compacted state.

[0042] In specific implementation, by setting up a first filter unit, it is possible to prevent the molecular sieve in the first accommodating chamber 110 from entering the compressor in the reverse direction from the first opening 120, wherein the reverse direction refers to the direction in which air flows from the air-using device to the compressor, and the reverse direction generally corresponds to the usage scenario where the height of the vehicle needs to be lowered; in addition, if the above-mentioned structural setting is not adopted (the first filter unit abuts against the surface of the molecular sieve when the molecular sieve is placed in the first accommodating chamber 110), then under the action of high-pressure air, the molecular sieve will move, causing mutual friction between the molecular sieves, and mutual friction will cause wear of the molecular sieves. For example, the molecular sieve will change from large particles to small particles, affecting the drying effect; thus, through the above-mentioned structural setting, the molecular sieve can be restricted to prevent the molecular sieve from moving in the first accommodating chamber 110, thereby preventing mutual friction between the molecular sieves, thereby ensuring the drying effect of the air drying device of the utility model.

[0043] According to one embodiment of the utility model, the air drying device of the utility model may also include a second filter unit, which is located in the second accommodating chamber 210, covers the second opening 220, and is connected to the cavity wall of the second accommodating chamber 210. When the molecular sieve is placed in the second accommodating chamber 210, the second filter unit abuts against the surface of the molecular sieve to make the molecular sieve in a compacted state.

[0044] In specific implementation, by setting up a second filter unit, it is possible to prevent the molecular sieve in the second accommodating chamber 210 from entering the air-using device in a positive direction from the second opening 220, wherein the positive direction refers to the direction in which air flows from the compressor to the air-using device, and the positive direction generally corresponds to a usage scenario in which the height of the vehicle needs to be increased; in addition, if the above-mentioned structural setting is not adopted, the molecular sieve will move under the action of high-pressure air, causing mutual friction between the molecular sieves, and mutual friction will cause wear of the molecular sieves. For example, the molecular sieve will change from large particles to small particles, affecting the drying effect; thus, through the above-mentioned structural setting (the second filter unit abuts against the surface of the molecular sieve when the molecular sieve is placed in the second accommodating chamber 210), the molecular sieve can be restricted to prevent the molecular sieve from moving in the second accommodating chamber 210, thereby preventing mutual friction between the molecular sieves, thereby ensuring the drying effect of the air drying device of the utility model.

[0045] The utility model also provides an air suspension system, comprising the air drying device of the above embodiment. The specific structure, working principle and beneficial effects of the air drying device are the same as those of the above embodiment, and will not be described in detail here.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An air drying device, characterized in that: It comprises a first accommodating cavity (110), a second accommodating cavity (210), a first opening (120), a plurality of communicating holes (310) and a second opening (220); The first accommodating chamber (110) and the second accommodating chamber (210) are used to accommodate a molecular sieve capable of drying air; The first opening (120) can be connected to the second opening (220) through the first accommodating chamber (110), the plurality of communicating holes (310) and the second accommodating chamber (210) in sequence, and the first opening (120) is used to be connected to an air outlet of a compressor; The second opening (220) is used to connect to the air inlet of a general air-breathing device; The air drying device can position the molecular sieve outside the connecting hole (310) when the molecular sieve is contained in the first containing chamber (110) and the second containing chamber (210).

2. The air drying device according to claim 1, characterized in that: The width of the connecting pore (310) is smaller than the diameter of the molecular sieve.

3. The air drying device according to claim 1, characterized in that: The air drying device comprises a first accommodating unit (100), a second accommodating unit (200) and a drag reduction structure (300); The first accommodating unit (100) has a first through hole capable of communicating with the first accommodating cavity (110); The first accommodating cavity (110) and the first opening (120) are provided in the first accommodating unit (100); The second accommodating unit (200) has a second through hole capable of communicating with the second accommodating cavity (210); The second accommodating cavity (210) and the second opening (220) are provided in the second accommodating unit (200); A plurality of the communicating holes (310) are provided in the drag reduction structure (300); One end of the drag reduction structure (300) is arranged at the first through hole; The other end of the drag reduction structure (300) is arranged at the second through hole; The communicating hole (310) passes through the first through hole and the second through hole.

4. The air drying device according to claim 3, characterized in that: The cross section of the drag reduction structure (300) is circular, and the drag reduction structure (300) extends from the side wall of the first accommodating unit (100) to the side wall of the second accommodating unit (200).

5. The air drying device according to claim 3, characterized in that: The first through hole is located at a middle position of the outer peripheral wall of the end portion of the first accommodating unit (100); The second through hole is located in the middle of the outer peripheral wall of the end portion of the second accommodating unit (200).

6. The air drying device according to claim 5, characterized in that: The first accommodating chamber (110), the second accommodating chamber (210) and the communicating hole (310) are arranged along a height direction (H) of the air drying device; The communicating hole (310) is configured as an oblong hole.

7. The air drying device according to claim 6, characterized in that: The plurality of communicating holes (310) are sequentially arranged at intervals along a width direction (W) of the communicating hole (310); The plurality of communicating holes (310) include at least one first communicating hole (311) and a plurality of second communicating holes (312); At least one second communicating hole (312) is provided on each side of the first communicating hole (311); The number of the second communicating holes (312) on both sides of the first communicating hole (311) is the same; The length of the first connecting hole (311) is greater than the length of the second connecting hole (312).

8. The air drying device according to claim 1, characterized in that: The invention also comprises a first filter unit, which is located in the first accommodating cavity (110), covers the first opening (120), and is connected to the cavity wall of the first accommodating cavity (110). When the molecular sieve is placed in the first accommodating cavity (110), the first filter unit abuts against the surface of the molecular sieve, so that the molecular sieve is in a compacted state.

9. The air drying device according to claim 1, characterized in that: The invention also comprises a second filter unit, which is located in the second accommodating cavity (210), covers the second opening (220), and is connected to the cavity wall of the second accommodating cavity (210). When the molecular sieve is placed in the second accommodating cavity (210), the second filter unit abuts against the surface of the molecular sieve, so that the molecular sieve is in a compacted state.

10. An air suspension system, characterized in that: include: An air drying device as claimed in any one of claims 1 to 9.

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