DE102013009746A1 - Filter device for filtering a gas, in particular air filter for a motor vehicle - Google Patents

Abstract

The invention relates to a filter device (10) for filtering a gas, with a filter insert part (12) as the first component for filtering the gas, with a housing (18) as the second component, which has a receptacle (20) in which to mount the Filter insert part (12) on the housing (18), the filter insert part (12) can be inserted in an insertion direction, and with at least one sealing element (28) arranged between the housing (18) and the filter insert part (12), by means of which a raw side against a clean side of the Filter device is sealed, the sealing element (28) provided on one of the components having at least one guide area (34) by means of which the filter insert part (12) when it is pushed into the housing (18) with the guide area (34) engaging in one on the other Component provided guide receptacle (36) is to be performed.

Description

The invention relates to a filter device for filtering a gas, in particular an air filter for a motor vehicle, according to the preamble of patent claim 1.

Filtering devices for filtering a gas are well known, for example in the form of air filters for filtering air from the production of series vehicles. Such an air filter is used, for example, to filter air supplied to an internal combustion engine, so that particles are filtered out of the air and can not get into the internal combustion engine undesirably.

Of the DE 20 2005 011 078 U1 a filter device for filtering a gas is known to be known. The filter device comprises a filter insert part as a first component. The filter insert part serves to filter the gas. The filter device also includes a housing as a second component. The housing has a receptacle into which the filter insert part can be inserted in an insertion direction for mounting the filter insert part on the housing. In this case, the filter insert part can be inserted into the receptacle like a cassette or inserted.

The filter device also comprises a sealing element, by means of which a raw side is sealed against a clean side of the filter device. On the so-called raw side is the not yet filtered and by means of the filter insert part to be filtered air in the filter device. On the so-called clean side is the filtered air, which has therefore already flowed from the raw side through the filter insert part to the clean side.

The DE 10 2009 009 066 A1 discloses a filter device for the filtration of gaseous fluids. The filter device comprises a filter insert part which comprises a filter medium and a sealing element arranged on the filter medium. The filter device also comprises a filter housing in which the filter insert part can be inserted. When inserted, the sealing element and a housing part of the filter housing have a common contact surface. In this case, an additional sealing web is provided between the sealing element and the housing part, wherein the sealing web is offset relative to the contact surface in the direction of the clean side of the filter medium.

The installation of the filter insert part on the corresponding housing, d. H. the insertion of the filter insert part in the housing can conventionally be made only relatively difficult, since the filter insert part can tilt during insertion, for example.

It is therefore an object of the present invention, a filter device of the type mentioned in such a way that a particularly simple installation of the filter insert part on the housing in a particularly simple and cost-effective manner can be realized.

This object is achieved by a filter device having the features of patent claim 1. Advantageous embodiments with expedient and non-trivial developments of the invention are specified in the remaining claims.

In order to develop a filter device for filtering a gas, in particular an air filter for a motor vehicle specified in the preamble of claim 1 type such that a particularly simple installation of the filter insert part on the housing can be realized in a particularly cost-effective manner, it is provided according to the invention one of the components provided sealing element has at least one guide portion, by means of which the filter insert part is to guide in its insertion into the housing under the intervention of the guide portion in a provided on the other component guide receptacle. The sealing element thus serves not only as a seal between the raw side and the clean side, but also as a guide element when the filter insert part is inserted into the receptacle. When inserting the filter insert part into the receptacle, the guide region cooperates in a form-fitting manner with the guide receptacle so that the filter insert part is guided. Hooking and / or jamming and / or other, the insertion obstructing effects can be avoided, so that the insert can be inserted in a particularly simple manner, for example, by a disassembly performing person.

The sealing element thus has a dual function, since it serves on the one hand for sealing and on the other hand for guiding the filter insert part. As a result of this dual function, the number of parts thus the weight and the cost of the filter device can be kept particularly low.

In an advantageous embodiment of the invention, the guide portion is formed as a positioning element, by means of which an insertion of the filter insert part is prevented in the housing in a deviating from a predetermined target position actual position of the filter insert part relative to the housing. In other words, the filter insert part is aligned relative to the housing, that the filter insert part has an actual position relative to the housing, which deviates from a predetermined target position, the filter insert part is not or not fully inserted into the receptacle and mounted on the housing as this is by the as Positioning element acting guide area is prevented. This means that the guide region is designed and in particular shaped such that the filter insert part can not be used in a position deviating from the desired position and thus installed incorrectly. Thus, the risk of incorrect installation and the risk of resulting from such a false housing damage can be kept particularly low. At the same time, the guide area allows an accurate and tight insertion of the filter insert part into the housing.

Preferably, it is provided that the guide area engages in the corresponding guide receptacle even when already fully inserted into the housing filter insert part. In this way, the filter insert part can not only be inserted into the housing in a simple manner, but it is also held stable and slip-proof in the housing by the positive cooperation of the guide region with the guide receptacle in its final assembly position. By this precise and precise insertion and positioning of the filter insert part on the housing, a desired function of the filter device can be ensured.

To realize a particularly precise alignment of the filter insert part relative to the housing during insertion of the filter insert part, it is provided in a particularly advantageous embodiment of the invention that the guide region has an outer contour and the guide receptacle has an inner contour for receiving the outer contour. The inner contour is designed as a matched to the outer contour counter contour or negative contour.

It has proven to be particularly advantageous if the guide region and the guide receptacle have respective cross sections, which each have one of a circular shape and / or of a rectangular shape different. As a result, a particularly effective protection against incorrect installation can be realized. Furthermore, the filter insert part can be aligned particularly precisely relative to the housing during insertion.

In a further advantageous embodiment of the invention, the guide receptacle extends at least over a predominant part of an extension of the other component to which the guide receptacle is provided. The filter insert part is thus guided during insertion at least over the majority of the extension of the other component, so that the risk of tilting and / or hooking can be kept particularly low.

To realize a particularly simple assembly and a particularly simple production of the filter device, it is provided in a further embodiment of the invention that the one component is the filter insert part and the other component is the housing.

In a further advantageous embodiment of the invention, at least one closure element is provided for closing the receptacle. In this way it can be avoided that the filter insert part undesirably moves out of the receptacle.

Preferably, the closure element is on the housing between a closing position closing the receptacle and at least one receptacle releasing open position relative to the housing movable, in particular pivotally held. The closure element therefore does not have to be released from the housing in order to move it from the closed position into the open position or vice versa. As a result, a captive is created so that the filter device can be handled in the assembly and disassembly of the filter insert part in a particularly simple manner. When opening and closing the recording, the closure element may remain on the housing and thus not be lost.

Alternatively, it has proven to be particularly advantageous if the closure element is arranged on the filter insert part with this mitbewegbar. As a result, a particularly simple assembly and disassembly of the filter insert part is created because the closing of the recording with the assembly of the filter insert part is associated with the housing. Furthermore, the release of the recording is accompanied by the dismantling of the filter insert part. In this case, the closure element can be integrally formed on the filter insert part. Of course, the use of a filter insert part and the housing separately formed closure element for closing the receptacle is conceivable.

The closure element can be arranged, for example, by a hinge, in particular a film hinge, by at least one latching closure, by at least one screw, by clamping and / or in some other way on the housing or on the filter insert part.

Finally, it has been found to be particularly advantageous if the sealing element as a foam element, d. H. as a sealing foam, is formed. As a result, not only a particularly good sealing of the raw side of the clean side can be realized, but the foam element can also ensure a particularly good and precise guidance of the filter insert part during its insertion.

Advantageously, the filter device comprises at least one locking element for locking the inserted filter insert part on the housing. As a result, unwanted relative movements of the filter insert part can be avoided to the housing, so that a high functional performance security of the filter device can be displayed.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing. The features and combinations of features mentioned above in the description as well as the features and combinations of features mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respectively indicated combination but also in other combinations or in isolation, without the scope of To leave invention.

The drawing shows in:

1 a schematic sectional view of a filter device in the form of an air filter according to a first embodiment for filtering a gas in the form of air, with a filter insert part as the first component for filtering the air and with a housing as a second component, in which the filter insert part can be inserted in a plug-in direction , wherein on the filter insert part, a sealing element is arranged, by means of which a raw side against a clean side of the filter means is sealable, and wherein the sealing element has a guide portion, by means of which the filter insert part when inserted into the housing while engaging the guide portion in a housing provided on the guide receptacle to lead is;

2 a schematic front view of the filter insert part;

3 a schematic longitudinal sectional view of the filter device according to a second embodiment, wherein the filter insert part is inserted into the housing;

4 a partial sectional schematic view of the filter device according to the second embodiment, wherein the filter insert part is pulled out of the housing; and

5 a fragmentary schematic longitudinal sectional view of the filter device according to a third embodiment.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

1 shows a schematic sectional view of a filter device in the form of an air filter 10 for a motor vehicle. The air filter 10 is used for filtering a gas in the form of air, which is to be supplied, for example, a drive unit in the form of an internal combustion engine of the motor vehicle. By filtering the air particles can be filtered out of the air, so that the particles can not get into the internal combustion engine.

The air filter 10 (Filter device) comprises a filter insert part 12 as the first component with a frame element 14 and a filter medium 16 to filter the air. The filter medium 16 is on the frame element 14 held and can over the frame element 14 be handled very easily. The frame element 14 lends the filter insert part 12 a dimensional stability.

The air filter 10 also includes a housing 18 as a second component. The housing has a receptacle 20 on, in the for mounting the filter insert part 12 on the housing 18 the filter insert part 12 in an in 1 by a directional arrow 22 illustrated insertion is inserted. Related to the image plane of 1 the insertion direction is perpendicular to the image plane away from the viewer.

1 shows the air filter 10 in a state in which the filter cartridge part 12 in the case 18 or in the recordings 20 is plugged in and is in a final assembly position, in which the filter insert part 12 finally on the case 18 is mounted. For disassembly of the filter insert part 12 on the housing 18 can the filter cartridge part 12 in a removal direction from the housing 18 be pulled out, wherein the removal direction is opposite to the insertion direction. At the air filter 10 is thus a cassette-like assembly and disassembly of the filter insert part 12 possible because the filter insert part 12 in the manner of a cassette in the housing 18 can be inserted and pulled out of this. The filter insert part 12 is therefore very easy to assemble and disassemble.

The air filter 10 has a raw page 24 as well as one of the raw side 24 opposite clean side 26 on. The raw side 24 is on a first side of the filter insert part 12 arranged while the clean side 26 on a side facing away from the first side, the second side of the filter insert part 12 is arranged. On the raw side 24 is the not yet filtered air, which from the raw side 24 through the filter medium 16 through to the clean side 26 can flow. On the clean side 26 the air is filtered.

The air filter 10 also includes a sealing element 28 , which as a foam element and thus formed as a sealing foam and the filter insert part 12 arranged and thus mitbewegbar with this. By means of the sealing element 28 is the raw side 24 against the clean side 26 sealed when the filter cartridge part 12 on the housing 18 is finally mounted, ie when the filter insert part 12 in its final assembly position. The sealing element 28 is related to the final assembly position of the filter insert part 12 between this and the case 18 arranged. The sealing element 28 can be in the circumferential direction of the filter insert part 12 completely extend around this. How out 1 is recognizable, is the sealing element 28 in the final assembly position of the filter insert part 12 on the one hand on the filter insert part 12 and on the other hand on the housing 18 supported.

The sealing element 28 has an at least substantially L-shaped cross section and is therefore designed as a sealing profile. The L-shape includes a first leg 30 and one with the first leg 30 connected, second leg 32 which is at least substantially perpendicular to the first leg 30 runs. The at the filter insert part 12 provided sealing element 28 has one through the thigh 32 formed leadership area 34 on, by means of which the filter insert part 12 during its insertion into the housing 18 under the intervention of the management area 34 in a provided on the other component guide receptacle in the form of a groove 36 to lead is.

In other words - around the filter cartridge part 12 on the housing 18 to assemble - the guidance area 34 in the groove 36 (Guide) inserted, with the groove 36 at least over a predominant part of an extension of the housing extending parallel to the insertion direction 18 extends. By inserting the guide area 34 and the groove 36 act the leadership area 34 and the groove 36 form-fitting together, leaving the guidance area 34 and over this the sealing element 28 and the filter cartridge part 12 is guided during insertion. The management area 34 in the groove 36 Thus form-fitting manner in the manner of a rail system of a drawer together, so that the filter insert part 12 through the interaction of the management area 34 with the groove 36 particularly precise relative to the housing 18 aligned and can be easily inserted into this, without causing jamming and snagging.

In addition, the management area 34 serve as a positioning element, by means of which an insertion of the filter insert part 12 in the case 18 is prevented when the filter insert part 12 in an actual position relative to the housing 18 is, which deviates from a predetermined target position. This target position is thereby through the management area 34 and the groove 36 specified. In other words, the filter insert part 12 only in the desired position in the housing 18 be pushed in, as the guide area 34 only in the desired position with the groove 36 can cooperate such that the filter insert part 12 in the case 18 can be pushed into its final assembly position.

At the same time is formed by the sealing element formed as a foam element 28 a particularly effective sealing of the raw side 24 from the clean side 26 guaranteed. Through the management area 34 and the groove 36 a filter guide is provided, which preferably in the longitudinal direction of the housing 18 or the filter device 10 and in particular the motor vehicle can run.

Preferably, at least one in 1 provided unrecognizable locking element, by means of which the filter insert part 12 in its final assembly position on the housing 18 can be fixed. The filter insert part 12 can thus only then from the housing 18 be dismantled when the locking element is removed or when caused by the locking element locking is released.

How out 1 is also recognizable, the guide area 34 an outer contour 38 on. The groove 36 has an inner contour 40 for picking up the outer contour 38 on, with the inner contour 40 as one to the outer contour 38 adapted counter contour or negative contour is formed. In the present case are the outer contour 38 and the inner contour 40 rectangular design, so that a particularly effective protection against incorrect installation is guaranteed. Such a safeguard against incorrect installation can also by a deviating from a rectangular shape shape of the outer contour 38 and the inner contour 40 will be realized.

2 shows the filter insert part 12 with the filter medium 16 and the sealing element 28 , which on the filter insert part 12 , in particular on its frame element 14 , is arranged. The filter medium 16 For example, it is designed as a substantially zigzag-shaped fold pack and ensures particularly good air filtration.

3 and 4 show the air filter 10 according to a second embodiment. Out 3 and 4 is an opening 42 of the housing 18 recognizable. In addition, one is with the opening 42 corresponding connection piece 44 recognizable, to which a through-air flowable line element can be connected. Via the line element, the air to be filtered to the air filter 10 be fed, wherein the conduit element flowing through the air through the opening 42 through to the raw side 24 can flow.

Out 3 are locking elements 46 in the form of locking elements, in particular clips, recognizable, which for locking the in the housing 18 inserted filter insert part 12 on the housing 18 serve. The removal direction is in 3 by a directional arrow 48 illustrated. For removing the filter insert part 12 First, the locking elements 46 opened to the moving through them locking the filter insert part 12 on the housing 18 repealed. How out 4 can be seen, then the filter insert part 12 from the recording 20 be pulled out.

The locking elements 46 can also be used as closure elements to capture the same time 20 to close. Preferably, the locking elements 46 or the closure elements on the housing 18 between a recording 20 closing closed position and at least one recording 20 releasing open position movable, in particular pivotable, held. To the filter insert part 12 out of the case 18 to be able to remove the closure elements or the locking elements 46 moved from its closed position to its open position, in particular pivoted.

Out 4 it can be seen that the respective groove 36 over the entire longitudinal direction of the housing 18 extends. As a result, the filter insert part 12 precisely guided during the entire insertion process and accurately into the housing 18 be inserted. In addition, the filter insert part 12 also very easy to dismantle without jamming and tilting. The housing 18 is commonly referred to as a filter box.

5 shows the air filter 10 according to a third embodiment, wherein in 5 by a directional arrow 50 the flow of air on the raw side 24 is illustrated. The groove 36 has a Fixiernutabschnitt 52 , by means of which the filter insert part 12 in its final assembly position on the housing 18 can be fixed.

LIST OF REFERENCE NUMBERS

10

air filter

12

Filter insert

14

frame element

16

filter media

18

casing

20

admission

22

insertion

24

unfiltered side

26

clean side

28

sealing element

30

first leg

32

second leg

34

guide region

36

groove

38

outer contour

40

inner contour

42

opening

44

connecting branch

46

locking

48

arrow

50

arrow

52

Fixiernutabschnitt

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005011078 U1 [0003]
• DE 102009009066 A1 [0005]

Claims (10)

Filter device ( 10 ) for filtering a gas, with a filter insert part ( 12 ) as the first component for filtering the gas, with a housing ( 18 ) as a second component, which is a receptacle ( 20 ), in which for mounting the filter insert part ( 12 ) on the housing ( 18 ) the filter insert part ( 12 ) is insertable in a plug-in direction, and with at least one between the housing ( 18 ) and the filter insert part ( 12 ) arranged sealing element ( 28 ), by means of which a raw side is sealed against a clean side of the filter device, characterized in that provided on one of the components sealing element ( 28 ) at least one management area ( 34 ), by means of which the filter insert part ( 12 ) when it is inserted into the housing ( 18 ) under intervention of the management area ( 34 ) in a provided on the other component guide receptacle ( 36 ) is to lead. Filter device ( 10 ) according to claim 1, characterized in that the guidance area ( 34 ) is designed as a positioning element, by means of which an insertion of the filter insert part ( 12 ) in the housing ( 18 ) in a deviating from a predetermined target position actual position of the filter insert part ( 12 ) relative to the housing ( 18 ) is prevented. Filter device ( 10 ) according to one of claims 1 or 2, characterized in that the guidance area ( 34 ) an outer contour ( 38 ) and the guide recording ( 36 ) an inner contour ( 40 ) for receiving the outer contour ( 38 ), wherein the inner contour ( 40 ) as one to the outer contour ( 38 ) adapted counter contour is formed. Filter device ( 10 ) according to one of the preceding claims, characterized in that the guidance area ( 34 ) and the guide recording ( 36 ) have respective cross-sections, each having a shape different from a circular shape and / or of a rectangular shape. Filter device ( 10 ) according to one of the preceding claims, characterized in that the guide receptacle ( 36 ) extends over at least a majority of an extension of the other component. Filter device ( 10 ) according to one of the preceding claims, characterized in that the one component the filter insert part ( 12 ) and the other component the housing ( 18 ). Filter device ( 10 ) according to one of the preceding claims, characterized in that at least one closure element ( 46 ) for closing the recording ( 20 ) is provided. Filter device ( 20 ) according to claim 7, characterized in that the closure element ( 46 ) on the housing ( 18 ) between a recording ( 20 ) closing position and at least one recording ( 20 ) releasing open position relative to the housing ( 18 ) is movable, in particular pivotable, is held. Filter device ( 10 ) according to claim 7, characterized in that the closure element on the filter insert part ( 12 ) Is arranged mitbewegbar with this. Filter device ( 10 ) according to one of the preceding claims, characterized in that the sealing element ( 28 ) is formed as a foam element.

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