Integrated air filter

Abstract

The invention discloses an integrated air filter, and relates to the field of filtering equipment, the integrated air filter comprises a shell, at least one air filtering assembly and at least one supporting structure, the shell is provided with an air inlet and an air outlet; each air filtering assembly comprises a physical filter element and at least one chemical filter element, and the chemical filter elements of the air filtering assemblies are arranged in the corresponding physical filter elements in a sleeved mode. Each physical filter element and each chemical filter element are arranged in the inner cavity of the shell; the physical filter elements can primarily filter air entering from the air inlet, the chemical filter elements can filter the air filtered by the physical filter elements again, and the air outlet is used for discharging the air filtered by the chemical filter elements; at least one supporting structure is arranged between every two adjacent air filtering assemblies, each supporting structure can make contact with the outer side wall of the corresponding air filtering assembly, and the two ends of each supporting structure are fixedly connected with the side wall of the shell. According to the invention, the maintenance cost can be reduced, the strength of the shell is improved, and miniaturization design is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering equipment, in particular to an integrated air filter. Background Art

[0002] To protect the engine, dump trucks and heavy trucks are equipped with air filters to filter out dust and particles from the intake air. As fuel cell engines develop, their power increases, requiring greater air flow and, consequently, larger air filters.

[0003] Existing air filters are mostly of the following two forms. The first is a pure chemical air filter, that is, only a chemical filter element is provided. However, the dust holding capacity of the chemical filter element is low, and the chemical filter element needs to be maintained frequently, especially in short-distance transportation scenarios (such as ports, construction sites, mining areas, etc.) and short-distance transportation of powders (such as cement, coal powder, mineral powder, etc. in dusty environments). The chemical filter element needs to be replaced frequently, resulting in high maintenance costs for vehicle owners; the second is to set up two air filters, a physical air filter and a chemical air filter. The physical air filter and the chemical air filter are independent components and are respectively set at different positions on the vehicle. Although the problem of high maintenance of the chemical filter element is solved, two air filters need to be installed, and the air filter is generally arranged between the cab and the hydrogen bottle rack. Since the hydrogen bottle rack takes up a lot of space, it is difficult to meet the installation requirements of two air filters. Due to the space limitations of fuel cell vehicles, it is not suitable for installation in most models. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated air filter to solve the problems existing in the above-mentioned prior art, which can reduce the overall maintenance cost of the integrated air filter; is conducive to reducing the overall volume and miniaturization design; and can improve the strength of the shell.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The present invention provides an integrated air filter, comprising a housing, an air filter assembly and a supporting structure, wherein:

[0007] The housing is provided with at least one air inlet and at least one air outlet;

[0008] There is at least one air filter assembly, each of which includes a physical filter element and at least one chemical filter element. Each chemical filter element of each air filter assembly is sleeved within the corresponding physical filter element. Each physical filter element and each chemical filter element are installed within the inner cavity of the housing. Each physical filter element is capable of performing an initial filtration on the air entering through the air inlet, and each chemical filter element is capable of performing a secondary filtration on the air filtered by the corresponding physical filter element. The air outlet is used to discharge the air filtered by each chemical filter element.

[0009] There is at least one supporting structure, and at least one supporting structure is arranged between two adjacent air filter assemblies. Each supporting structure between two adjacent air filter assemblies can contact the outer side walls of the corresponding two air filter assemblies, and the two ends of each supporting structure are respectively fixedly connected to the side walls of the shell.

[0010] Preferably, the shell includes an outer shell body and a bottom cover, a first opening is provided at one end of the outer shell body, and the bottom cover is detachably fixedly connected to the first opening of the outer shell body; one end of each air filter assembly is fixedly connected to an end of the shell close to the first opening, and the other end of each air filter assembly extends toward the other end of the shell; at least one support structure is provided at one end of the outer shell body close to the first opening.

[0011] Preferably, the air inlet is provided on the outer side wall of the shell, and a gap is left between the outer side wall of the air filter assembly and the inner side wall of the shell to form an inlet mixing chamber.

[0012] Preferably, there are two air filter assemblies, and the two air filter assemblies are arranged in sequence along the first direction; the first opening is arranged at one end of the length direction of the shell body, and the first direction is perpendicular to the length direction of the shell body.

[0013] Preferably, a first mounting structure is provided on one side of the shell in the width direction, and a second mounting structure is provided on one side of the shell in the height direction, and both the first mounting structure and the second mounting structure include four mounting points.

[0014] Preferably, each of the air inlets is arranged on one side of the shell body in the first direction, each of the air outlets is arranged at one end of the shell body perpendicular to the first direction, and each of the air outlets is arranged opposite to the first opening.

[0015] Preferably, a gap is left between the air outlet of the housing body and the air filter assembly to form an outlet mixing chamber.

[0016] Preferably, each of the physical filter elements and each of the chemical filter elements is cylindrical with one end open, each of the physical filter elements is provided with a chemical filter element inside, there is one air outlet, and the inner cavity of each of the chemical filter elements is connected to the outlet mixing cavity.

[0017] Preferably, at least one first positioning ring is provided at one end of the shell body away from the first opening, and at least one second positioning ring corresponding to the first positioning ring is provided on the inner bottom wall of the bottom cover; the sealing end of each physical filter element is provided in one of the second positioning rings, and each of the second positioning rings can provide support for the corresponding physical filter element perpendicular to the vertical direction of the physical filter element; the opening end of each physical filter element is provided in the corresponding first positioning ring, and the outer side wall of the sealing structure of the opening end of each physical filter element is sealed and connected with the inner side wall of the corresponding first positioning ring; the opening end of each chemical filter element is provided outside the corresponding first positioning ring, and the outer side wall of the sealing structure of the opening end of each chemical filter element is sealed and connected with the outer side wall of the corresponding first positioning ring.

[0018] Preferably, it further comprises a drain valve, which is fixedly connected to a side of the shell away from the air inlet.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention provides an integrated air filter, comprising a supporting structure, a shell provided with at least one air inlet and at least one air outlet; there is at least one air filter assembly, each air filter assembly comprises a physical filter element and at least one chemical filter element, and each chemical filter element of each air filter assembly is sleeved in the corresponding physical filter element; each physical filter element and each chemical filter element are installed in the inner cavity of the shell; each physical filter element can perform an initial filtration on the air entering through the air inlet, and each chemical filter element can perform a second filtration on the air filtered by the corresponding physical filter element, and the air outlet is used for discharging the air filtered by each chemical filter element; there is at least one supporting structure, and at least one supporting structure is provided between two adjacent air filter assemblies, each supporting structure can contact the outer side walls of the corresponding two air filter assemblies, and the two ends of each supporting structure are respectively fixedly connected to the side walls of the shell. After air enters the inner cavity of the housing through the air inlet, it first passes through the physical filter element and then the chemical filter element. The physical filter element can intercept most particulate impurities, greatly reducing the filtering burden of the chemical filter element and extending the maintenance time of the chemical filter element. Since the chemical filter element is much more expensive than the physical filter element, it can reduce the overall maintenance cost of the integrated air filter. The present invention integrates the physical filter element and the chemical filter element in the housing and sets the chemical filter element inside the physical filter element, which is conducive to reducing the overall volume and facilitating miniaturization. The support structure can support the housing, correct deformation caused by the housing reprocessing, and improve the strength of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic structural diagram of the integrated air filter provided by the present invention;

[0023] Figure 2 A top view of the integrated air filter provided by the present invention;

[0024] Figure 3 for Figure 2 Cross-sectional view of AA;

[0025] In the figure: 100, integrated air filter; 1, housing; 101, air inlet; 102, air outlet; 103, housing body; 104, bottom cover; 105, upper cover; 106, first positioning ring; 107, second positioning ring; 2, air filter assembly; 201, physical filter element; 202, chemical filter element; 3, supporting structure; 4, inlet mixing chamber; 5, first mounting structure; 6, second mounting structure; 7, outlet mixing chamber; 8, drain valve. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that in the description of the present invention, terms such as "upper", "lower", "left", "right", "inside", "outside", "front", "back", "center", "longitudinal", "lateral", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "clockwise", and "counterclockwise" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0028] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0029] The purpose of the present invention is to provide an integrated air filter to solve the problems existing in the above-mentioned prior art, which can reduce the overall maintenance cost of the integrated air filter; is conducive to reducing the overall volume and miniaturization design; and can improve the strength of the shell.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figures 1 to 3As shown, the present invention provides an integrated air filter 100, comprising a housing 1, an air filter assembly 2 and a support structure 3, wherein: the housing 1 is provided with at least one air inlet 101 and at least one air outlet 102; there is at least one air filter assembly 2, each air filter assembly 2 comprises a physical filter element 201 and at least one chemical filter element 202, each chemical filter element 202 of each air filter assembly 2 is sleeved in the corresponding physical filter element 201; each physical filter element 201 and each chemical filter element 202 are installed in the inner cavity of the housing ... The physical filter element 201 can perform initial filtration on the air entering through the air inlet 101, and each chemical filter element 202 can re-filter the air filtered by the corresponding physical filter element 201. The air outlet 102 is used to discharge the air filtered by each chemical filter element 202; there is at least one supporting structure 3, and at least one supporting structure 3 is arranged between two adjacent air filter components 2. Each supporting structure 3 can contact the outer side walls of the corresponding two air filter components 2, and the two ends of each supporting structure 3 are respectively fixedly connected to the side walls of the shell 1. The physical filter element 201 can intercept most particulate impurities, and the chemical filter element 202 can filter harmful gases and particulate impurities in the air, such as SO2, NOX, NH3, etc. After the air enters the inner cavity of the shell 1 from the air inlet 101, it first passes through the physical filter element 201 and then passes through the chemical filter element 202. Since most particulate impurities are first intercepted by the physical filter element 201, the filtering burden of the chemical filter element 202 is greatly reduced, and the maintenance time of the chemical filter element 202 is extended. Since the physical filter element 201 has a larger filtering area, a higher dust holding capacity, and a longer service life, the chemical filter element 202 has a smaller filtering area, fiber characteristics, and a shorter service life, and the chemical filter element 202 is much more expensive than the physical filter element 201, so the present invention can reduce the overall maintenance cost of the integrated air filter 100; the present invention integrates the physical filter element 201 and the chemical filter element 202 in the shell 1, and sets the chemical filter element 202 in the physical filter element 201, which is conducive to reducing the overall volume and is conducive to miniaturized design. The supporting structure 3 can support the shell 1 , correct deformation of the shell 1 during reprocessing, and improve the strength of the shell 1 .

[0032] In some embodiments, the housing 1 includes a main body 103 and a bottom cover 104. The main body 103 has a first opening at one end, and the bottom cover 104 is removably fixedly connected to the first opening of the main body 103. One end of each air filter assembly 2 is fixedly connected to the end of the housing 1 near the first opening, and the other end of each air filter assembly 2 extends toward the other end of the housing 1. At least one support structure 3 is provided at the end of the housing 103 near the first opening. The bottom cover 104 is opened, and the entire air filter assembly 2, or the physical filter element 201, or the chemical filter element 202, is removed from the first opening of the housing 1 for replacement. When the air filter assembly 2 as a whole or the physical filter element 201 is removed (pulled out) or installed, since the filter element is long and heavy, the support structure 3 can support and guide the outer wall of the physical filter element 201 to prevent the filter element from falling during operation and causing damage to the filter element; and when installing, the support structure 3 can guide the corresponding filter element to move toward the connection structure at the end of the housing 1 away from the first opening, thereby reducing the difficulty of installation. At the same time, a support structure 3 is provided at the end of the shell body 103 close to the first opening, which can contact the support structure 3 when the corresponding filter element is inserted into the housing 1 for a short distance, or can be separated from the support structure 3 when the corresponding filter element is pulled out to the end close to the first opening, thereby improving the support and guiding effects.

[0033] In some specific embodiments, the shell 1 further includes an upper cover 105 , and a second opening is provided at one end of the shell body 103 away from the bottom cover 104 . The upper cover 105 can be detachably fixedly connected to the second opening of the shell body 103 ; an air outlet 102 is provided on the upper cover 105 .

[0034] In some embodiments, an air inlet 101 is provided on the outer wall of the housing 1, and a gap is left between the outer wall of the air filter assembly 2 and the inner wall of the housing 1, forming an inlet mixing chamber 4. The inlet mixing chamber 4 prevents external air from directly blowing into the air filter assembly 2, thereby reducing flow resistance and facilitating airflow to both sides of the air filter assembly 2, thereby preventing a portion of the air filter assembly 2 (the area directly opposite the air inlet 101) from being overloaded and prematurely clogged.

[0035] In some specific embodiments, there are two air filter assemblies 2, and the two air filter assemblies 2 are arranged in sequence along the first direction; the first opening is arranged at one end of the length direction of the shell body 103, and the first direction is perpendicular to the length direction of the shell body 103. By arranging the two air filter assemblies 2 along the first direction, a parallel installation is formed, so that the air filter assemblies 2 occupy less space in the direction perpendicular to the length direction of the shell 1 and perpendicular to the first direction, such as Figure 1As shown, the first direction is the height direction of the shell 1. This embodiment can make the width dimension of the shell 1 smaller than the height dimension and length dimension of the shell 1, reducing the width of the entire product, realizing the flat design of the integrated air filter 100, which is conducive to space layout, especially the ability to be arranged and installed in a narrow space. There are two air filter components 2, which can increase the filtration area, extend the service life of the filter element, and improve the ability of the chemical filter element 202 to remove harmful gases. It should be noted that the number of air filter components 2 is not limited to two, and can be adjusted according to the layout space, the filtering capacity of the filter element, and the filtering effect to be achieved by the integrated air filter 100, and can be set to single or multiple.

[0036] In some specific embodiments, a first mounting structure 5 is provided on one side of the housing 1 in the width direction, and a second mounting structure 6 is provided on one side of the housing 1 in the height direction. The first mounting structure 5 and the second mounting structure 6 each include four mounting points. Figure 1 As shown, mounting structures are provided on the side and bottom of the shell 1, that is, two installation methods are provided. The integrated air filter 100 can be installed through the first mounting structure 5, and the integrated air filter 100 can also be installed through the second mounting structure 6 to meet different installation requirements and be suitable for the layout of different vehicle models, such as left-side layout or right-side layout.

[0037] In some specific embodiments, each air inlet 101 is disposed on one side of the housing body 103 in the first direction, each air outlet 102 is disposed at one end of the housing body 103 perpendicular to the first direction, and each air outlet 102 is disposed opposite to the first opening.

[0038] In some specific embodiments, a gap is left between the air outlet 102 of the shell body 103 and the air filter assembly 2 to form an outlet mixing chamber 7. The gas filtered by multiple air filter assemblies 2 enters the mixing chamber for mixing and is then discharged from the air outlet 102, which is beneficial to improving the uniformity of exhaust.

[0039] In some specific embodiments, each physical filter element 201 and each chemical filter element 202 is cylindrical with one end open, preferably cylindrical. Each physical filter element 201 is provided with a chemical filter element 202, and there is only one air outlet 102. The inner cavity of each chemical filter element 202 is connected to the outlet mixing chamber 7. The present invention uses a cylindrical filter element, which is easier to process and manufacture than a racetrack-type filter element, and the sealing reliability of the filter element is easier to control. The filtered air in the inner cavities of multiple chemical filter elements 202 is mixed through the outlet mixing chamber 7 and then enters the interior of the fuel cell engine through the air outlet 102, thereby protecting the engine.

[0040] In some specific embodiments, at least one first positioning ring 106 is provided at one end of the shell body 103 away from the first opening, and at least one second positioning ring 107 corresponding to the first positioning ring 106 is provided on the inner bottom wall of the bottom cover 104; the sealing end of each physical filter element 201 is provided in a second positioning ring 107, and each second positioning ring 107 can provide support for the corresponding physical filter element 201 perpendicular to the vertical direction of the physical filter element 201; the opening end of each physical filter element 201 is provided in the corresponding first positioning ring 106, and the outer side wall of the sealing structure of the opening end of each physical filter element 201 is sealed with the inner side wall of the corresponding first positioning ring 106; the opening end of each chemical filter element 202 is provided outside the corresponding first positioning ring 106, and the outer side wall of the sealing structure of the opening end of each chemical filter element 202 is sealed with the outer side wall of the corresponding first positioning ring 106. By sealing the open ends of the chemical filter element 202 and the physical filter element 201, it is ensured that the air is first initially filtered by the physical filter element 201 and then filtered by the chemical filter element 202, thereby improving the filtering effect.

[0041] In some embodiments, after the bottom cover 104 is fixedly connected to the housing body 103, the inner bottom wall of the physical filter element 201 abuts against the sealed end of the corresponding chemical filter element 202 to improve the installation stability of the chemical filter element 202. Each air filter assembly 2 corresponds to a first positioning ring 106 and a second positioning ring 107.

[0042] In some specific embodiments, a drain valve 8 is further included, which is fixedly connected to the side of the housing 1 away from the air inlet 101. The drain valve 8 is arranged at Figure 1 and 2 As shown at the bottom, the water that enters the interior of the device can be discharged through the drain valve 8 under the action of gravity.

[0043] In some embodiments, multiple support structures 3 are provided along the length of the air filter assembly 2 to improve the support and guidance effect. The support structures 3 extend along the width direction of the housing 1 and are fixedly connected to two opposite side walls of the housing 1.

[0044] In some specific embodiments, there is only one supporting structure 3 to simplify the structure.

[0045] In some specific embodiments, the support structure 3 is a support frame, and the support frame is fixedly connected to the housing 1 by screws.

[0046] In some specific embodiments, there are two air inlets 101 , both disposed on the top of the housing 1 .

[0047] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An integrated air filter, characterized in that: It includes a housing, an air filter assembly and a supporting structure, wherein: The housing is provided with at least one air inlet and at least one air outlet; There is at least one air filter assembly, each of which includes a physical filter element and at least one chemical filter element. Each chemical filter element of each air filter assembly is sleeved within the corresponding physical filter element. Each physical filter element and each chemical filter element are installed within the inner cavity of the housing. Each physical filter element is capable of performing an initial filtration on the air entering through the air inlet, and each chemical filter element is capable of performing a secondary filtration on the air filtered by the corresponding physical filter element. The air outlet is used to discharge the air filtered by each chemical filter element. There is at least one supporting structure, and at least one supporting structure is arranged between two adjacent air filter assemblies. Each supporting structure between two adjacent air filter assemblies can contact the outer side walls of the corresponding two air filter assemblies, and the two ends of each supporting structure are respectively fixedly connected to the side walls of the shell.

2. The integrated air filter according to claim 1, characterized in that: The shell includes an outer shell body and a bottom cover, one end of the outer shell body is provided with a first opening, and the bottom cover is detachably fixedly connected to the first opening of the outer shell body; one end of each air filter assembly is fixedly connected to an end of the shell close to the first opening, and the other end of each air filter assembly extends toward the other end of the shell; at least one support structure is provided at one end of the outer shell body close to the first opening.

3. The integrated air filter according to claim 1, characterized in that: The air inlet is provided on the outer side wall of the shell, and a gap is left between the outer side wall of the air filter assembly and the inner side wall of the shell to form an inlet mixing chamber.

4. The integrated air filter according to claim 2, characterized in that: There are two air filter assemblies, which are arranged in sequence along a first direction; the first opening is arranged at one end of the shell body in the length direction, and the first direction is perpendicular to the length direction of the shell body.

5. The integrated air filter according to claim 4, characterized in that: A first mounting structure is provided on one side of the shell in the width direction, and a second mounting structure is provided on one side of the shell in the height direction. Both the first mounting structure and the second mounting structure include four mounting points.

6. The integrated air filter according to claim 2, characterized in that: Each of the air inlets is arranged on one side of the shell body in the first direction, each of the air outlets is arranged at one end of the shell body perpendicular to the first direction, and each of the air outlets is arranged opposite to the first opening.

7. The integrated air filter according to claim 6, characterized in that: A gap is left between the air outlet of the shell body and the air filter assembly to form an outlet mixing chamber.

8. The integrated air filter according to claim 7, characterized in that: Each of the physical filter elements and the chemical filter elements is cylindrical with one end open. Each physical filter element is provided with a chemical filter element inside. There is one air outlet, and the inner cavity of each chemical filter element is connected to the outlet mixing cavity.

9. The integrated air filter according to claim 2, characterized in that: At least one first positioning ring is provided at one end of the shell body away from the first opening, and at least one second positioning ring corresponding to the first positioning ring is provided on the inner bottom wall of the bottom cover; the sealing end of each physical filter element is provided in a second positioning ring, and each second positioning ring can provide support for the corresponding physical filter element perpendicular to the vertical direction of the physical filter element; the opening end of each physical filter element is provided in the corresponding first positioning ring, and the outer side wall of the sealing structure of the opening end of each physical filter element is sealed with the inner side wall of the corresponding first positioning ring; the opening end of each chemical filter element is provided outside the corresponding first positioning ring, and the outer side wall of the sealing structure of the opening end of each chemical filter element is sealed with the outer side wall of the corresponding first positioning ring.

10. The integrated air filter according to claim 1, characterized in that: It also includes a drain valve, which is fixedly connected to a side of the shell away from the air inlet.

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