Air filter with reinforcing structure

Abstract

The utility model discloses an air filter with a reinforcing structure, which comprises an upper air filter and a lower air filter which are hermetically connected through a step and a clamping groove. Limiting division bars are arranged at the hollowed-out positions of an upper frame and a lower base of the lower air filter, a fine filter paper core is wound in an inclined wave shape (the number of turns is increased), and fine filtering is achieved. A limiting baffle is arranged at the hollow part of the outer frame of the upper filter, and a V-shaped clamping groove is used for positioning the coarse filter paper core to intercept large particles; the whole body is runway-shaped, so that the filtering area is increased. The split type structure is convenient to maintain, gradient filtration improves efficiency, dust holding capacity is improved by more than 30% compared with a traditional product, and the problems that an existing air filter is single in structure and insufficient in filtration are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile air cleaner, specifically relates to a multilayer filter air cleaner with reinforcing structure, and through split type structure, gradient filtration design and optimization layout, the filtering efficiency and dust holding capacity are promoted. BACKGROUND

[0002] The core function of the automobile air cleaner is to filter dust, sand, pollen and other solid particles in the air to prevent them from entering the engine cylinder and causing wear of key components. In the prior art, the air cleaner usually adopts a single paper core structure, and the paper core is a regular wave-shaped bending and winding. The space is loose, which leads to insufficient filtration. Moreover, the dust holding capacity is small, and the service life is short, which cannot meet the high-efficiency filtration demand under complex working conditions. SUMMARY

[0003] To solve the above problems, the utility model aims at solving the problems of single structure, insufficient filtration, small dust holding capacity and short service life of the existing air cleaner, and provides a split type, gradient filtration, high dust holding capacity and reinforcing structure air cleaner.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an air cleaner with reinforcing structure, comprising an upper air cleaner and a lower air cleaner, which are detachably connected through a sealing structure;

[0005] The lower air cleaner comprises an upper frame, a fine filter paper core and a lower base: the upper frame and the lower base are hollow in the middle part, and a plurality of limiting partition strips are arranged in parallel in the hollow part; the fine filter paper core is a filter paper with an inclined wave-shaped bending and winding, and the inclination angle is 15°-30°; the upper and lower ends of the fine filter paper core are adhered to the upper frame and the lower base by glue, respectively, and the winding number is increased by 20%-30% compared with the regular wave shape;

[0006] The upper air cleaner comprises an outer frame and a coarse filter paper core: the middle part of the outer frame is hollow, and the coarse filter paper core is a superimposed wave-shaped filter paper fixed in the hollow part of the outer frame by glue; a step is arranged on the lower edge of the outer frame, which is matched with the clamping groove of the upper frame, and a sealing rubber strip is integrally formed on the step; the step is tightly inserted into the clamping groove of the upper frame through the sealing rubber strip, so as to realize the sealing connection between the upper air cleaner and the lower air cleaner;

[0007] The upper air cleaner and the lower air cleaner are in the shape of a racetrack, which increases the effective filtering area, and the effective filtering area is increased by 20%-30% compared with the traditional cylindrical shape; the limiting baffles in the hollow part of the outer frame are uniformly distributed in the circumferential direction, and the limiting baffles are provided with uniformly distributed "V"-shaped clamping grooves in the lower part; the wave-shaped part of the coarse filter paper core is clamped and positioned in the "V"-shaped clamping groove; one of the limiting baffles is provided with a pulling piece, and the pulling piece is provided with a hand pulling groove for manually separating the upper air cleaner and the lower air cleaner.

[0008] The reinforcing ribs are connected between the spacing strips of the hollowed parts of the upper frame and the lower base to strengthen the overall strength.

[0009] The utility model discloses the beneficial effect is:

[0010] 1. Split structure: upper, lower air filter is connected through step and clamping groove sealing, convenient to disassemble and maintain,

[0011] 2. Gradient filtration: the fine filter paper core (inclined wavy shape) of lower air filter realizes high -efficient fine filtration, and the coarse filter paper core (wavy shape) of upper air filter first intercepts big particle, and double filtration improves overall efficiency;

[0012] 3. Dust capacity improves: the fine filter paper core inclined wavy shape increases the number of turns, and the filter area is increased with the runway shape structure, and the dust capacity is improved by more than 30% than traditional products;

[0013] 4. Positioning is reliable: the coarse filter paper core is positioned through " V " -shaped clamping groove and limiting baffle, avoids displacement, and sealing rubber strip enhances the sealing property, prevents unfiltered air leakage;

[0014] 5. Maintenance is convenient: the pull -out piece design supports quick separation of upper and lower air filter, and the filter core is replaced or cleaned conveniently.

[0015] The utility model will be further described below in connection with the drawings and specific embodiment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the perspective view of the specific embodiment of the utility model;

[0017] Figure 2 It is the perspective view of lower air filter in the specific embodiment of the utility model;

[0018] Figure 3 It is the perspective view of upper air filter in the specific embodiment of the utility model;

[0019] Figure 4 It is Figure 2 The enlarged structure diagram of A in the middle.

[0020] Mark explanation: 1-lower air filter;11-upper frame;12-lower base;13-fine filter paper core;14-limiting spacing strip;2-upper air filter;21-outer frame;22-coarse filter paper core;23-limiting baffle;231-" V "-shaped clamping groove;24-pull -out piece;241-hand pull groove;3-sealing rubber strip. SPECIFIC EMBODIMENT

[0021] The utility model will be further described below in connection with the drawings and specific embodiment.

[0022] AsFigure 1 Figure 4 As shown in the drawings, the embodiment discloses an air filter with a reinforcing structure, which comprises an upper air filter 2 and a lower air filter 1, and the two are detachably connected through a sealing structure.

[0023] The lower air filter 1 is composed of an upper frame 11, a fine filter paper core 13 and a lower base 12. The upper frame 11 and the lower base 12 are hollowed in the middle, and 4 parallel limiting partitions 14 are uniformly distributed around the hollowed part. The upper frame 11 and the lower base 12 are connected through reinforcing ribs between the limiting partitions 14 of the hollowed part, so as to strengthen the overall strength. The fine filter paper core 13 adopts a PVDF material filter paper, which is wound in a wave shape with an inclination angle of 20° (the width of a single circle is 3 mm, and the total number of circles is 120). The upper and lower ends of the fine filter paper core 13 are fixed by polyurethane glue and the upper frame 11 and the lower base 12 respectively. The number of winding circles of the fine filter paper core 13 is increased by 20% compared with a regular wave shape (100 circles).

[0024] The upper air filter 2 is composed of an outer frame 21 and a coarse filter paper core 22. The outer frame 21 is hollowed in the middle (matching the size of the hollowed part of the upper frame 11 of the lower air filter 1), and 6 limiting baffles 23 (with a height of 5 mm) are uniformly distributed around the hollowed part. A “V”-shaped clamping groove 231 (with an opening angle of 60° and a depth of 3 mm) is formed in the lower part of each limiting baffle 23. The coarse filter paper core 22 is a common paper wave-shaped filter paper (with a single peak height of 2 mm and a wave length of 10 mm), and the wave part of the coarse filter paper core 22 is clamped in the “V”-shaped clamping groove 231 and fixed by epoxy resin glue. A step (with a width of 3 mm) is arranged at the lower edge of the outer frame 21, and a silica gel sealing rubber strip 3 (with a thickness of 2 mm) is integrally formed on the step. The step is tightly inserted into the clamping groove of the upper frame 11 through the sealing rubber strip 3, so as to realize the sealing connection of the upper and lower air filters.

[0025] The upper air filter 2 and the lower air filter 1 are in a runway shape (with a long axis of 150 mm and a short axis of 100 mm), and the effective filtering area is increased by 25% compared with a traditional cylindrical shape (with a diameter of 100 mm and a length of 150 mm). A pulling piece 24 (made of plastic material and with a thickness of 2 mm) is arranged on one limiting baffle 23 of the outer frame 21, and a hand pulling groove 241 (with a depth of 3 mm and a width of 5 mm) is arranged on the pulling piece 24, which is used for manually separating the upper and lower air filters.

[0026] In use, air is intercepted by the coarse filter paper core 22 of the upper air filter 2 (≥10 μm), and then enters the fine filter paper core 13 of the lower air filter 1 to filter fine particles (≤10 μm), and then enters the engine after double filtration. When maintenance is needed, the pulling piece 24 is pulled through the hand pulling groove 241, so as to separate the upper and lower air filters, and then the filter core can be replaced or the sundries and dust can be removed.

[0027] The outer frame 21, the upper frame 11 and the lower base 12 are made of PA66 (nylon) + glass fiber (GF) injection molding, so as to improve the strength and the reinforcing structure.

[0028] ​The above technical scheme can achieve the following technical effects:

[0029] 1. Split structure: the upper and lower air filters are connected by steps and clamping grooves for sealing, facilitating disassembly and maintenance;

[0030] 2. Gradient filtration: the fine filter paper core (inclined wavy shape) of the lower air filter realizes efficient and fine filtration, and the coarse filter paper core (wavy shape) of the upper air filter first intercepts large particles, so that the overall efficiency is improved through double filtration;

[0031] 3. Dust capacity improvement: the inclined wavy shape of the fine filter paper core increases the number of turns, and the runway-shaped structure increases the filtering area, so that the dust capacity is improved by more than 30% compared with traditional products;

[0032] 4. Reliable positioning: the coarse filter paper core is positioned by the "V"-shaped clamping groove and the limiting baffle to avoid displacement; the sealing rubber strip enhances the sealing performance to prevent unfiltered air leakage;

[0033] 5. Convenient maintenance: the pull tab design supports quick separation of the upper and lower air filters, facilitating replacement or cleaning of the filter core.

Claims

1. A reinforced air cleaner, comprising: The utility model provides a filter device, including upper empty filter (2) and lower empty filter (1), and the two are detachably connected through sealing structure, the lower empty filter (1) includes upper frame (11), fine filter paper core (13) and lower base (12), and the upper frame (11) is hollow in the middle with the lower base (12), is equipped with a plurality of parallel limiting partition strips (14) in the hollow place, and the fine filter paper core (13) is the filter paper of inclined wavy shape bending and winding, and the upper and lower ends are respectively adhered with the upper frame (11) and lower base (12) through glue, the upper empty filter (2) includes outer frame (21) and coarse filter paper core (22), and the outer frame (21) is hollow in the middle, and the coarse filter paper core (22) is wavy filter paper and is fixed with glue in the hollow of outer frame (21), and the lower edge of outer frame (21) is equipped with the step matched with the clamping groove of upper frame (11), and the step is integrally formed with sealing rubber strip (3), and sealing rubber strip (3) is inserted in the clamping groove of upper frame (11) and realizes sealing connection, and the upper empty filter (2) and lower empty filter (1) are as a whole runway shape.

2. The reinforced-structure air cleaner of claim 1, wherein: The inclined wavy bending angle of the fine filter paper core (13) is 15°-30°.

3. The reinforced-structure air cleaner of claim 1, wherein: The limiting baffle (23) of the hollow place of the outer frame (21) is evenly distributed along the circumference, and the lower part of the limiting baffle (23) is provided with a "V"-shaped clamping groove (231), and the wave part of the coarse filter paper core (22) is clamped and positioned in the "V"-shaped clamping groove (231).

4. The reinforced-structure air cleaner of claim 1, wherein: The limiting partition strips (14) between the hollow places of the upper frame (11) and the lower base (12) are connected through reinforcing ribs.

5. The reinforced-structure air cleaner of claim 1, wherein: One of the limiting baffle (23) of the outer frame (21) is provided with a pulling piece (24), and the pulling piece (24) is provided with a hand pulling groove (241).

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