KR101649150B1 - Air cleaner for vehicle - Google Patents

Abstract

The present invention relates to an air cleaner for a vehicle, which has an improved structure in which a filter can be connected by sliding to the air cleaner in an accurate direction while the directivity of the filter mounted on an element is maintained. According to the embodiment of the present invention, the air cleaner for a vehicle includes: a first body having an air inlet on one side to suction the air; a second body connected to the upper part of the first body and having an air outlet on one side; the element connected to a storage space unit formed by connection of the first and second bodies by sliding; and a cover member selectively closing an opening of the storage space unit. The first body includes at least one or more shutter members which can be open and closed in the air inlet. An opening and closing rate of the shutter member is controlled in accordance with a level of negative pressure generated while an engine operates. During idle rotation in which a rotation number of the engine decreases to a predetermined level or lower, the shutter member moves to a closed position by the weight thereof by rotating.

Description

[0001] The present invention relates to an air cleaner for vehicle,

The present invention relates to an air cleaner for a vehicle, and more particularly, to an air cleaner for a vehicle which is provided with a shutter member which can be opened and closed at an air intake port and adjusts the amount of air sucked in accordance with the number of revolutions of the engine, .

An internal combustion engine used as an automobile power source sucks outside air and mixes it with fuel and burns it to form power. That is, the fuel stored in the fuel tank of the automobile passes through various fuel supply devices, is mixed with the air introduced from the outside and is injected into the cylinder inside the engine, and at the same time, the piston reciprocates according to the suction, compression, explosion, And the vehicle is powered.

As described above, a certain amount of air is required to operate the engine. However, when the outside air is directly sucked and used, the pollution material contained in the air may lower the combustion efficiency of the engine. Therefore, the air used for combustion of the vehicle engine needs to be foreign air as much as possible.

Therefore, the air supplied to the vehicle engine can be separated from the pollutants while passing through the air cleaner. That is, the sucked air flows into the interior of the air cleaner housing, the pollutants are removed by the filter member, and then is transferred to the intake manifold through the air intake hose connected to the air cleaner housing and supplied to the engine. The intake manifold is formed to allow air sucked from the outside through the air cleaner to pass through the filter to the opposite side. The dust and impurities contained in the air are filtered through the filter, and the purified air is supplied to the engine, To supply the necessary air. The general structure of such an air cleaner has been disclosed in Korean Patent Laid-Open No. 10-2013-0061599 (published on Mar. 11, 2013).

In recent years, a sliding type air cleaner detachable structure has been proposed so that the maintenance of the element can be more easily performed. The related art has been disclosed in Korean Patent No. 10-1400841 (Registered on May 21, 2014).

However, if the number of revolutions of the engine increases, the amount of air required by the engine increases, but when the number of revolutions of the engine decreases, the amount of air required by the engine decreases. However, since the conventional air cleaner always has an air intake port of a constant size, it is designed to have the diameter of the maximum air intake port required by the engine. Accordingly, there is a problem that the engine noise generated in the engine rotating at a low speed is transmitted to the outside through the air intake flow path, thereby increasing the noise of the vehicle.

Korean Patent Publication No. 10-2013-0061599 (published on May 11, 2013) Korean Registered Patent No. 10-1400841 (Registered on May 22, 2014)

An object of the present invention is to provide an air cleaner for a vehicle which is improved in structure so that it can always be engaged with an air cleaner only in a correct direction while maintaining the directionality of a filter to be mounted on an element.

The air cleaner for a vehicle according to the present embodiment includes: a first body having an air inlet formed at one side thereof for sucking air; A second body coupled to an upper portion of the first body and having an air outlet at one side thereof; An element slidably coupled to the storage space formed by the engagement of the first and second bodies; And a cover member for selectively closing the opening of the storage space part, wherein the first body further comprises at least one shutter member which can be opened and closed at the air inlet, And the rotational speed of the engine can be rotationally moved to the closed position due to its own weight during idle rotation in which the number of revolutions of the engine drops below a certain level.

The air inlet may be inclined at an angle (?) With respect to the bottom surface, with the inlet at which the shutter member is installed facing the bottom surface.

The angle alpha may be formed at an acute angle of 45 degrees or less.

The shutter member is formed with a gap of a certain size between the respective shutter members at the closed position, so that air can be sucked through the gap.

Further, the shutter member may further include a pair of hinge members at both ends thereof, and may be rotatably installed at an inlet of the air inlet.

In addition, the shutter member may include a first shutter member disposed at the center of the air inlet; And a second shutter member provided on the upper side and the lower side of the first shutter member, and the second shutter member may be formed symmetrically.

According to the present embodiment as described above, when the number of revolutions of the engine is increased, the shutter member is opened by the negative pressure of the engine and the flow path is maximally secured. On the other hand, when the number of revolutions of the engine is lowered, the shutter member is closed by its own weight, And when the engine speed is low, the engine noise is cut off by the shutter member, so that the noise and vibration of the vehicle can be reduced.

1 is a perspective view of an air cleaner according to the present embodiment,
Fig. 2 is a sectional view of Fig. 1,
3 is a view showing an air intake port in an open state,
4 is a view showing an air intake port in a closed state.

Hereinafter, a vehicle air cleaner according to the present embodiment will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

In addition, the same or corresponding components are denoted by the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. For convenience of explanation, the size and shape of each constituent member shown may be exaggerated or reduced have.

On the other hand, terms including an ordinal number such as a first or a second may be used to describe various elements, but the constituent elements are not limited by the terms, and the terms may refer to a constituent element from another constituent element It is used only for the purpose of discrimination.

Fig. 1 is a perspective view of the air cleaner according to the present embodiment, Fig. 2 is a sectional view of Fig. 1, Fig. 3 is an illustration of an open air intake port, and Fig. 4 is a view showing an air intake port in a closed state.

The air cleaner 100 for a vehicle according to an embodiment of the present invention includes a first body 110 having an air inlet 112 formed at one side thereof for sucking air, A second body 120 coupled to the first body 110 and having an air outlet 121 at one side thereof and an element 130 installed in the first body 110 and the second body 120 to filter air, . ≪ / RTI >

1 and 2, the first body 110 is formed so that a receiving space in which the element 130, which will be described later, can be slidably inserted into the first body 110 can be formed by coupling with the second body 120, And may be formed in a box shape. An upper portion of the first body 110 may be open and an air inlet 112 may be formed at one side of the first body 110 to allow external air to flow therethrough.

In addition, the first body 110 may have a seating jaw extending laterally along an outer rim of the opened upper end, and a support rim may be formed along the rim on both sides in the width direction so as to face each other. However, the present invention is not limited thereto, and any structure can be used as long as the second body 120 is capable of complementary coupling.

The air inlet 112 may be installed to face the bottom surface as shown in FIG. At this time, the air intake port 112 may form an angle? With respect to the bottom surface as shown in FIG. 6, and the angle may be an acute angle of 45 degrees or less. The reason why the air intake port 112 is disposed so as to face the bottom surface is to allow the shutter member 200, which will be described later, to be rotated and opened by its own weight.

That is, at least one shutter member 200 may be installed in the air inlet 112 as shown in FIGS. 3 and 4. According to the present embodiment, the shutter member 200 may include first and second shutter members. The first shutter member may be installed in the vicinity of the center of the air inlet 112 and the second shutter member may be installed to be symmetrical to the upper and lower sides of the first shutter member installed in the vicinity of the center of the air inlet 112.

A pair of hinge members 210 protrude from both ends of the shutter member 200 and are rotatably installed on the inner circumferential surface of the air inlet 112. At this time, the opening / closing operation of the shutter member 200 can be adjusted depending on whether an engine (not shown) is operated or not. That is, when the engine is started and idling, the engine operates at a low speed of less than 1,000 RPM, so that a large amount of air is not required for combustion of the fuel. Accordingly, since the amount of air introduced into the engine is small and the negative pressure is reduced, in this case, the shutter members 200 are more affected by the self weight than the negative pressure, so that the shutter members 200 are kept closed as shown in FIG. . At this time, since the respective shutter members 200 are not completely in close contact with each other but are spaced apart from each other by a predetermined distance, air can be introduced through the clearance between the shutter members 200, .

On the other hand, when the number of revolutions of the engine is increased, the amount of air sucked into the engine must be increased since more air is required for burning the fuel. In this case, the shutter members 200 that have been closed by their own weight due to the increase in the negative pressure formed by the engine are opened to completely open the opening 112a of the air inlet 112 as shown in Fig. 3 have. On the other hand, the degree of opening of the opening 112a may vary depending on the magnitude of the negative pressure generated in the engine. That is, it can be linearly increased with increase of the engine speed.

The second body 120 is coupled to the opened upper side of the first body 110 and may be formed in a box shape having a receiving space therein as in the first body 110. The second body 120 may form an opening through which the first body 110 faces and an air outlet 121 for discharging the air introduced through the air inlet 112 to the outside May be formed.

The lower end of the second body 120 may be provided with a complementary jaw extending in the lateral direction along the outer edge so as to be seated in the seating jaw formed in the first body 110 .

A hinge part 125 may be provided at one side of the second body 120 to allow a cover member 140 to be opened and closed to be opened and closed at a corresponding position of the cover member 140, A portion 145 may be provided.

At this time, when the first body 110 and the second body 120 are in contact with each other, the air is filtered at one side of the portion where the seating jaws of the first body 110 and the second body 120 are in contact with each other, An element 130 may be interposed between the first and second bodies 110 and 120. [

As shown in FIG. 2, the element 130 has various types such as a dry type using a filter or synthetic fibers, a wet type using an engine or water, and a double type in which wet type and dry type are combined. In one embodiment, the air introduced into the air cleaner 100 using the dry type filter is filtered through the element 130 by the negative pressure of the engine, and may be formed in a rectangular shape.

Specifically, the element 130 includes a filter member for filtering impurities contained in the air, a filter member formed on the filter member to surround the outer circumferential surface of the filter member, And a lifting and lowering unit coupled to the sealing frame so that the element 130 can be brought into close contact with the upper surface of the receiving portion of the second body 120. [ 2 and 3, the element 130 is inserted at a predetermined angle with respect to the bottom surface so that the first body 110 is disposed on the lower side with respect to the element 130, The second body 120 may be disposed on the upper side so that an air flow can be formed from below to above.

The filter member is made of a synthetic fiber material and is formed in a multi-folded shape so that it can be contacted with air at a maximum possible area, and can be formed to have a sufficient filtration area. The filter member may be formed by folding the filter member a plurality of times so as to form a wrinkle as shown in the figure, through which the contaminants contained in the inhaled air can be filtered by contact with the air through the widest area.

Further, the sealing frame formed to surround the outer circumferential surface of the filter member may be formed of a rectangular frame, and the flange may be formed to extend and project laterally.

Meanwhile, in the air cleaner 100 for a vehicle according to an embodiment of the present invention, the first body 110 and the second body 120 may be fixed by a method such as thermal fusion without separate fastening means. However, the present invention is not limited to this, but it is also possible to constitute a complementary shape and fix it by using a plurality of fastening elements, for example, a "C" shaped clamp or the like.

According to the present embodiment as described above, since the shutter member 200 is provided to adjust the amount of the air introduced through the air inlet 112 according to the magnitude of the negative pressure generated in the engine, The air intake port 112 is maximally closed by the self weight of the shutter member 200 and the noise of the engine can be prevented from being transmitted to the outside of the vehicle through the air intake port 112 as much as possible.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

100; Air cleaner 110; The first body
114; Guide rails 115; Jaw
120; A second body 130; Element
200; A shutter member 200a; The first shutter
200b; A second shutter 210; The hinge member

Claims (6)

A first body having an air inlet formed at one side thereof for sucking air;
A second body coupled to an upper portion of the first body and having an air outlet at one side thereof;
An element slidably coupled to the storage space formed by the engagement of the first and second bodies; And
And a cover member selectively closing an opening of the storage space portion,
The first body may include:
And at least one shutter member capable of being opened and closed at the air inlet,
Wherein the shutter member comprises:
The degree of opening and closing is controlled in accordance with the magnitude of the negative pressure generated during the operation of the engine, and during the idle rotation in which the number of revolutions of the engine falls below a certain level,
Wherein a gap of a predetermined size is formed between the respective shutter members at the closed position, and air is sucked through the gap. The air conditioner according to claim 1,
Wherein an inlet at which the shutter member is installed faces the bottom surface, and is inclined at a predetermined angle alpha with respect to the bottom surface. 3. The method according to claim 2, wherein the angle (?
Wherein the air cleaner is formed at an acute angle of 45 degrees or less. delete The image forming apparatus according to claim 1,
Wherein the air cleaner further comprises a pair of hinge members at both ends, and is rotatably installed at an inlet of the air inlet. The image forming apparatus according to claim 1,
A first shutter member disposed at the center of the air inlet; And
And a second shutter member of one phase provided above and below the first shutter member,
And the second shutter member is formed symmetrically.

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