Integrated filtering system for air compression system

Abstract

The utility model relates to an integrated filtering system for an air compression system. The integrated filtering system comprises a shell (1), a filter element (2), a silencing pipe (4), silencing cotton (3) and a cover plate (5), wherein the filter element (2), the silencing pipe (4) and the silencing cotton (3) are arranged in the shell (1), and the cover plate (5) is arranged on the shell (1). Wherein the filter element (2), the silencing pipe (4) and the silencing cotton (3) are sequentially sleeved from inside to outside; an air outlet pipe (8) and an air inlet (9) are arranged on the cover plate (5), the air outlet pipe (8) is communicated with the filter element (2), and the air inlet (9) is communicated with the silencing cotton (3). Compared with the prior art, the silencer has the advantages that the silencing pipe, the silencing cotton and the filter element which are sequentially connected in a sleeved mode are arranged to form a wrapping type structure, the structure is compact and simple, the manufacturing cost is low, the air filtering function and the silencing function are integrated, and the air quality and the noise reduction effect can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtering devices, in particular to an integrated filtering system for a pneumatic system. Background Art

[0002] In the field of new energy vehicles, air suspension systems have gradually received more and more attention and emphasis. The air suspension system is mainly composed of an air spring and a shock absorber. By adjusting the inflation and deflation of the air spring, the height, damping and shock absorption effect of the vehicle can be changed, thereby improving the driving comfort and handling stability of the vehicle.

[0003] Most of the existing integrated devices for the air inlet end of the compressor of the air suspension system on the market are of a segmented structure. These segmented structures connect the filtering and silencing components in series through rubber hoses. This design usually has a relatively high cost, a relatively large overall structure, occupies relatively more space in layout, and the manufacturing cost is also relatively expensive, which may limit its adaptability in different vehicle models or applications. At the same time, due to the complexity of the existing integrated setting, it leads to insufficient air flow or pressure loss, thereby affecting the performance of the suspension system. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an integrated filtering system for a pneumatic system, which integrates the functions of air filtering and silencing, has a compact structure, a simple design and a low cost.

[0005] The purpose of the utility model can be realized by the following technical solutions:

[0006] The utility model provides an integrated filtering system for a pneumatic system, including a housing, a filter element, a silencing pipe, a sound-absorbing cotton arranged in the housing, and a cover plate arranged on the housing;

[0007] Wherein, the filter element, the silencing pipe and the sound-absorbing cotton are sleeved in sequence from the inside to the outside;

[0008] An air outlet pipe and an air inlet are arranged on the cover plate. The air outlet pipe is communicated with the filter element, and the air inlet is communicated with the sound-absorbing cotton.

[0009] Preferably, the filter element is arranged at the central axis position in the housing, the silencing pipe is sleeved outside the filter element coaxially, and the sound-absorbing cotton is sleeved outside the silencing pipe coaxially.

[0010] Preferably, the silencing pipe is a reactive silencing pipe, and silencing holes are arranged on the silencing pipe.

[0011] Further preferably, the silencing pipe is made of sound-absorbing metal.

[0012] Further preferably, the reactive silencing pipe is made of aluminum alloy with sound-absorbing properties.

[0013] In the present utility model, the function of the filter element is to filter the outside air and deliver the clean air to the compressor of the air spring air supply unit.

[0014] In the present utility model, the function of the silencing pipe is to absorb the noise transmitted to the outside during the operation of the compressor and the exhaust noise generated during the backwashing of the air suspension system by constructing a cavity and opening holes on the silencing pipe, that is, by constructing a reactive muffler; the silencing pipe can adjust the size and quantity of the holes on the silencing pipe, as well as the volume of the space constructed by the silencing pipe and the housing, according to the frequency of the noise generated by the system and the noise elimination requirements, in combination with the noise elimination effect of the sound-absorbing cotton, so as to meet the requirements for noise.

[0015] In the present utility model, the function of the sound-absorbing cotton is to cooperate with the silencing pipe to absorb the noise transmitted to the outside during the operation of the compressor and the exhaust noise generated during the backwashing of the air suspension system. Parameters such as the thickness, density and volume of the sound-absorbing cotton can be adjusted according to the frequency of the noise generated by the system and the noise elimination requirements of its customers, in combination with the effect of the silencing pipe.

[0016] Preferably, the air inlet is arranged at a position on the cover plate corresponding to the sound-absorbing cotton.

[0017] Further preferably, there are several air inlets.

[0018] Further preferably, the air inlets are annularly distributed.

[0019] Further preferably, the air inlet is an arched air inlet, which can further guide the air to smoothly enter the integrated filtration system, is conducive to the air directly entering the sound-absorbing cotton in the vertical direction, and reduces the aerodynamic resistance.

[0020] In the present utility model, the function of the air inlet is to suck air from the atmosphere into the system during inhalation; and to discharge the air with high-concentration dust from the system during backwashing. The shape, size, direction, quantity and its construction method of the air inlet can be adjusted according to the requirements of the system resistance, the specific position of the system assembly, the specific requirements of the waterproof and dustproof grades, and the requirements of the inhalation direction and the exhaust direction.

[0021] Preferably, the air outlet pipe is arranged at a position on the cover plate corresponding to the filter element, the end of the air outlet pipe close to the cover plate extends into the interior of the housing, and the filter element is communicated with the air outlet pipe.

[0022] Preferably, an anti-detachment mechanism is arranged at the end of the air outlet pipe away from the cover plate.

[0023] Further preferably, the anti-detachment mechanism includes a pipe clamp structure, and the pipe clamp is composed of 2 semi-circular rings, and both sides are fastened by bolts.

[0024] In the present utility model, the function of the air outlet pipe is to connect the intake hose at the intake end of the supercharger, and convey the filtered clean air into the supercharger during inhalation; during backwashing, convey high-pressure gas into the system to blow the dust on the filter element and the sound-absorbing cotton out of the system;

[0025] In the present utility model, the function of the anti-detachment structure is to fix the hose on the air inlet, preventing the hose from detaching when subjected to pulling or pressure. At the same time, improve the sealing performance at the connection to enable the system to meet the sealing requirements;

[0026] Preferably, an installation structure is provided on the housing.

[0027] Further preferably, the installation structure includes a buckle, and the buckle can be structurally adjusted according to installation requirements and boundaries.

[0028] Preferably, reinforcing ribs are arranged on the housing.

[0029] Further preferably, the reinforcing ribs are arranged in a cross shape on the housing, and their function is to reduce the radiation amount of internal noise to the outside, and at the same time strengthen the overall structural strength of the system.

[0030] Preferably, the housing is a cylindrical structure with one end open and one end closed.

[0031] Preferably, the cover plate is disc-shaped corresponding to the opening of the housing, and the housing and the cover plate are connected by threads.

[0032] An integrated filtration system of the present utility model is used for but not limited to air filtration at the intake end of an air suspension compression system. It integrates the functions of air filtration and sound absorption. By filtering the outside air, it conveys clean air into the compressor of the air spring air supply unit, and at the same time reduces the noise transmitted to the outside during the operation of the compressor and the exhaust noise generated during the backwashing of the air suspension system.

[0033] Preferably, the integrated filtration system can act in the inhalation mode and the backwashing mode of the air spring air supply unit.

[0034] The present utility model is different from the common series structure in the prior art. By sleeving the silencing pipe, the sound-absorbing cotton, and the filter element in sequence, a wrapped structure is formed. The structure is compact, the design is simple, and the manufacturing cost is low, and it can adapt to the application scenarios of different vehicle models.

[0035] The air circulation mode of the present utility model is different from the prior art. The present utility model is of a wrapped design, and a plurality of air inlets are provided at corresponding positions on the cover plate. The air inlets can be optimized according to the application scenario, and the air outlet is communicated with the filter element. When the working mode of the present utility model is the suction mode: air enters the integrated filtration system through the air inlets, and then, along the air circulation direction, successively passes through the sound-absorbing cotton, the sound-absorbing pipe, the filter element, and finally, through the air outlet pipe, clean air is transported to the air compressor of the air spring air supply unit. Through the design of the present utility model, the problems of insufficient air flow or pressure loss can be solved, thereby improving the air circulation rate and meeting the protection and performance requirements of the vehicle.

[0036] Compared with the prior art, the present utility model has the following beneficial effects:

[0037] (1) The present utility model provides an integrated filtration system for an air compression system. By arranging a sound-absorbing pipe, a sound-absorbing cotton and a filter element which are successively sleeved, a wrapped structure is formed. The structure is compact and simple, the manufacturing cost is low, and the functions of air filtration and noise elimination are integrated.

[0038] (2) Through the unique arrangement of the air inlets and the air outlet pipe, the present utility model can more effectively guide the air flow, reduce the resistance of the air flow, and thus can greatly improve the air circulation rate and the performance of the suspension system.

[0039] (3) The noise elimination structure in the present utility model can be adjusted by changing the parameters of the sound-absorbing pipe and the sound-absorbing cotton according to the frequency of the noise generated by the system and the noise elimination requirements of the customers.

[0040] (4) By integrating the noise elimination function, the filtration function, and integrating the installation structure on the housing, the present utility model reduces the number of parts of the system and the required assembly space, reduces the complexity of part installation, reduces the assembly cost of parts, and enhances the market competitiveness of the product.

[0041] (5) At the same time, through the form of integrated installation, the present utility model increases the stability of the product, reduces the risk of part detachment caused by vibration or dragging of the product; at the same time, it also reduces the difficulty and labor cost of after-sales market maintenance.

[0042] (6) The integrated filtration system of the present utility model can be used at the air inlet end of the air suspension compression system, can effectively improve the air quality and the noise reduction effect, is suitable for diversified application scenarios, meets the needs of different customers, and fills the market gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is an exploded view of the present utility model;

[0044] Figure 2 is the front view of the present utility model;

[0045] Figure 3 is the side view of the present utility model;

[0046] Figure 4 is the top view of the present utility model;

[0047] Figure 5 is the schematic diagram of the external structure of the present utility model;

[0048] Figure 6 is the schematic diagram of the air intake mode of the present utility model;

[0049] Figure 7 is the schematic diagram of the backwashing mode of the present utility model;

[0050] In the figure: 1. housing, 2. filter element, 3. sound-absorbing cotton, 4. sound-absorbing pipe, 5. cover plate, 6. mounting structure, 7. reinforcing rib, 8. air outlet pipe, 9. air inlet. Specific embodiments

[0051] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present utility model is not limited to the following embodiments.

[0052] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0053] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0054] In the following embodiments or examples, if there is no special description of the functional components or structures, it means that they are all conventional components or conventional structures used in the art to achieve the corresponding functions.

[0055] Example 1

[0056] An integrated filtration system for a pneumatic system, the structure of which is as Figures 1 to 5 shown. The integrated filtration system includes a housing 1, a filter element 2 disposed within the housing 1, a silencing pipe 4, and sound-absorbing cotton 3. Among them, the filter element 2 is externally sleeved with the silencing pipe 4, and the silencing pipe 4 is externally sleeved with the sound-absorbing cotton 3; the integrated filtration system further includes a cover plate 5, and the cover plate 5 seals the filter element 2, the silencing pipe 4, and the sound-absorbing cotton 3 inside the housing 1. An air outlet pipe 8 communicating with the filter element 2 and an air inlet 9 communicating with the sound-absorbing cotton 4 are provided on the cover plate 5.

[0057] Example 2

[0058] An integrated filtration system for a pneumatic system, the structure of which is as Figures 1 to 5 shown. The integrated filtration system includes a housing 1, a filter element 2 disposed within the housing, a silencing pipe 4, and sound-absorbing cotton 3, and a cover plate 5 disposed on the housing 1.

[0059] Among them, the filter element 2 is disposed at the central position within the housing 1, and the filter element 2 is an annular cylinder.

[0060] The silencing pipe 4 is sleeved outside the filter element 2 and is coaxially centered with the filter element 2. The silencing pipe 4 is selected as a reactive silencing pipe 4, and a plurality of sound-absorbing holes are provided on the silencing pipe 4 to form a plurality of cavities.

[0061] The silencing pipe 4 is externally sleeved with sound-absorbing cotton 3, and the sound-absorbing cotton 3 surrounds the outside of the silencing pipe 4. The sound-absorbing cotton 3 is filled between the housing 1 and the silencing pipe 4, is coaxially centered with the silencing pipe 4 and the filter element 2, is an annular cylinder, and is made of ultra-fine glass fiber.

[0062] Specifically, the silencing pipe and the sound-absorbing cotton in this embodiment can be optimized according to the acoustic and resistance balance of the system. The aperture and shape of the silencing pipe, the material and density selection of the sound-absorbing cotton, and the arrangement and spacing of the sound-absorbing holes in the silencing pipe in this embodiment can all be adjusted according to the actual application scenario and performance requirements, so that the integrated filtration system in this embodiment has excellent sound-absorbing performance and reasonable air circulation efficiency.

[0063] The filter element 2, the silencing pipe 4, and the sound-absorbing cotton 3 are sealed inside the housing 1 by the cover plate 5, and the cover plate 5 is fixedly connected to the housing 1 by threading.

[0064] Among them, an air outlet pipe 8 is provided at a position on the cover plate 5 corresponding to the filter element 2. One end of the air outlet pipe 8 extends into the interior of the housing 1 and communicates with the filter element 2. The other end is connected to one end of a hose through a thread, and the other end of the hose is connected to the air inlet end of the air compressor. An anti-detachment structure is also provided at one end of the air outlet pipe 8 connected to the air inlet end of the air compressor through the hose. In this embodiment, the anti-detachment structure is a pipe clamp structure, which consists of 2 semi-circular rings and is fixed on both sides by bolts, effectively preventing the hose from detaching when under pressure.

[0065] A number of air inlets 9 are provided at positions on the cover plate 5 corresponding to the sound-absorbing cotton 3. Specifically, the air inlets 9 in this embodiment are designed with high flexibility and adjustability, and can be comprehensively optimized according to subsequent specific design requirements, layout needs, and the results of algorithm simulation. In this embodiment, the shape, direction, and layout of the air inlets 9 can be adjusted according to the actual application scenario and performance requirements, including but not limited to the layout of the whole vehicle and the position of the air inlets, the required protection level, the air circulation mode, and the required flow rate, so as to meet the protection and performance requirements of the vehicle.

[0066] As Figures 6 to 7 shown, the integrated filtration system of this embodiment has 2 working modes: the suction mode and the backflush mode.

[0067] When the working mode is the suction mode: Air enters the integrated filtration system through the air inlet 9, and then, along the air flow direction, successively passes through the sound-absorbing cotton 3, the sound-absorbing pipe 4, the filter element 2, and finally, through the air outlet pipe 8, clean air is transported to the air compressor of the air spring air supply unit. The sound-absorbing cotton 3 and the sound-absorbing pipe 4 can reduce the noise transmitted to the outside when the air compressor is working.

[0068] When the working mode is the backflush mode, the high-pressure gas in the air suspension system passes through the air outlet pipe 8 along the air flow direction, successively passes through the filter element 2, the sound-absorbing pipe 4, the sound-absorbing cotton 3, and finally, is discharged into the environment through the air inlet 9. During backflush, the dust in the filter element 2 and the sound-absorbing cotton 3 can be blown out of the integrated filtration system at the same time. The sound-absorbing pipe 4 and the sound-absorbing cotton 3 can absorb the exhaust noise generated during the backflush of the air suspension system.

[0069] Embodiment 3

[0070] On the basis of Embodiment 2, this Embodiment 3 further adopts the following design: An installation structure 6 is also provided on the housing 1 of the integrated filtration system of this Embodiment 3. In this Embodiment 3, the installation structure 6 is a buckle, and a number of reinforcing ribs 7 arranged in a cross shape are also provided outside the housing 1.

[0071] This Embodiment 3 can be used at the air intake end of an automotive air suspension compression system. The integrated filtration system can be installed in the support element of the automotive air suspension system through a buckle (mounting structure 6). The outlet pipe 8 of the integrated filtration system can be connected to the air compressor in the air spring air supply unit through a hose and a pipe clamp (anti-detachment structure). The integrated filtration system can function in the air intake mode and the backwashing mode of the air spring air supply unit respectively.

[0072] The above description of the embodiments is provided to enable those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the present utility model is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the present utility model according to the disclosure of the present utility model should be within the protection scope of the present utility model.

Claims

1. An integrated filtration system for an air compression system, characterized in that: It includes a housing (1), a filter element (2), a silencing tube (4), sound-absorbing cotton (3) arranged inside the housing (1), and a cover plate (5) arranged on the housing (1); Among them, the filter element (2), the silencing tube (4), and the sound-absorbing cotton (3) are sleeved in sequence from the inside to the outside; An air outlet pipe (8) and an air inlet (9) are arranged on the cover plate (5), the air outlet pipe (8) is communicated with the filter element (2), and the air inlet (9) is communicated with the sound-absorbing cotton (3).

2. The integrated filtration system for an air compression system according to claim 1, wherein, The filter element (2) is arranged at the central axis position inside the housing (1), the silencing tube (4) is sleeved outside the filter element (2) coaxially, and the sound-absorbing cotton (3) is sleeved outside the silencing tube (4) coaxially.

3. An integrated filtration system for an air compression system according to claim 1, characterized in that, The silencing tube (4) is a resistance silencing tube, and silencing holes are arranged on the silencing tube (4).

4. An integrated filtration system for an air compression system according to claim 1, wherein The air inlet (9) is arranged at a position on the cover plate (5) corresponding to the sound-absorbing cotton (3).

5. The integrated filtration system for an air compression system according to claim 1, characterized in that: The air outlet pipe (8) is arranged at a position on the cover plate (5) corresponding to the filter element (2). One end of the air outlet pipe (8) close to the cover plate (5) extends into the interior of the housing (1), and the filter element (2) is communicated with the air outlet pipe (8).

6. The integrated filtration system for an air compression system according to claim 1, wherein, An anti-detachment structure is arranged at one end of the air outlet pipe (8) away from the cover plate (5).

7. An integrated filtration system for a pneumatic system according to claim 6, characterized in that, The anti-detachment structure includes a pipe clamp structure. The pipe clamp is composed of 2 semi-circular rings and is fastened by bolts on both sides.

8. The integrated filtration system for an air compression system according to claim 1, characterized in that: An installation structure (6) is arranged on the housing (1).

9. An integrated filtration system for a pneumatic system according to claim 8, characterized in that, The installation structure (6) includes a buckle.

10. An integrated filtration system for a pneumatic system according to claim 1, characterized in that, Reinforcing ribs (7) are arranged on the housing (1).

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