Housing arrangement

Abstract

The invention relates to a housing arrangement, comprising a housing (1), a cover (2) and a replacement part (20) for insertion into the housing (1), further comprising at least one quick-release fastener (3) for fastening the cover (2) to the housing (1) by engagement of the quick-release fastener (3) in a respective rear locking geometry (6), wherein the replacement part (20) has a number of retaining pins (21) corresponding to the number of quick-release fasteners (3), which together with the housing (1) or the cover (2) form the rear locking geometry (6) when the replacement part (20) is inserted into the housing (1) or the cover (2) is placed on the replacement part (20), wherein the housing (1) or the cover (2) has a number of recesses (10) corresponding to the number of quick-release fasteners (3), each having a through-opening (8) for one of the retaining pins (21), wherein each of the retaining pins (21) has a length such that the Retaining pin (21) projects through the respective through opening (8) and beyond,when the replacement part (20) is inserted into the housing (1) so that its end projecting beyond the through-opening (8) forms the rear locking geometry (6), wherein the retaining pins (21) are formed from a flexible material or have at least one flexible section, wherein the through-openings (8) extend obliquely to an installation direction (ER) of the replacement part (20) so that the retaining pins (21) are deflected when inserted into the through-opening (8).

Description

[0001] The invention relates to a housing arrangement according to the preamble of claim 1.

[0002] When attaching a cover to a housing, it is common practice to use a direct connection or fixation of the cover to the housing. This allows the cover to be installed even if no filter is used, and a system that includes the housing with the cover, such as an air conditioning unit or an air filter housing, could be operated without a filter. This would negate the filtration function.

[0003] WO 2012 / 110604 A1 describes a filter housing for a cyclone filter, which is designed to internally accommodate a filter element, which has at least one fastening element, into which a locking element of a secondary housing can engage when the filter element is accommodated in the filter housing and is arranged between the filter housing and the secondary housing in such a way that the secondary housing can be clamped to the filter housing.

[0004] WO 2017 / 180875 A1 describes a filter system with one or more filter elements, wherein a locking tab connects the cover above the filter to the housing once the assembly is fully assembled in the housing. The locking tab is attached to a fixed hook portion into which the fastening element can hook. The locking tab is not connected to the filter, but only to the housing.

[0005] The subsequently published DE 10 2023 105 071 A1 also describes a housing arrangement in which a replacement part is accommodated. The connection between the cover and the housing is established by at least one quick-release fastener, which engages in a rear-locking geometry. Fixed retaining pins, which are attached to the replacement part, together with the housing or cover, form this geometry. However, the retaining pins, and thus also the quick-release fastener, are located radially further outward when locked. This results in a comparatively larger installation space requirement.

[0006] The invention is based on the object of providing a novel solution for closing a housing with a lid.

[0007] The object is achieved according to the invention by a housing arrangement having the features of claim 1.

[0008] Advantageous embodiments of the invention are the subject of the subclaims.

[0009] A housing arrangement is proposed, comprising a housing, a cover for closing the housing, and a replacement part, wherein the housing is configured to receive the replacement part, further comprising at least one quick-release fastener for fastening the cover to the housing by engagement of the quick-release fastener in a respective rear-locking geometry, wherein the replacement part has a number of retaining pins corresponding to the number of quick-release fasteners, which, together with the housing or the cover, form the rear-locking geometry when the replacement part is inserted into the housing or the cover is placed on the replacement part, wherein the housing or the cover has a number of recesses corresponding to the number of quick-release fasteners, each recess having a through-opening for one of the retaining pins, wherein the recesses are each aligned with one of the quick-release fasteners when the cover is placed on the housing, wherein each of the retaining pins has a length such thatthat the retaining pin protrudes through and beyond the respective through-opening when the replacement part is inserted into the housing, so that its end protruding beyond the through-opening forms the rear locking geometry. According to the invention, the retaining pins are made of a flexible material or have at least one flexible section, wherein the through-openings extend obliquely to an installation direction of the replacement part, so that the retaining pins are deflected when inserted into the through-opening.

[0010] In one embodiment, the retaining pins point in a relaxed, undeformed state in an installation direction of the replacement part.

[0011] In one embodiment, the through openings run obliquely in the direction towards the housing or the cover or obliquely in the direction away from the housing or cover.

[0012] In one embodiment, the bay windows are arranged on the outside of the housing or lid or on the inside of the housing or lid.

[0013] In one embodiment, the retaining pin has a beveled end configured to facilitate insertion into the sloped through-opening.

[0014] In one embodiment, the retaining pin has a lower flexibility at an end forming the rear locking geometry compared to the rest of the retaining pin or the flexible section, in particular due to a greater material thickness.

[0015] In one embodiment, the at least one quick release has a first wire bracket which is pivotally connected to the cover or housing about a first pivot axis, and a second wire bracket which is pivotally connected to the first wire bracket about a second pivot axis and is configured to engage with the rear locking geometry, wherein the first pivot axis is arranged on the cover or housing in such a way that an imaginary connecting line between the second pivot axis when the quick release is tensioned and the end of the second wire bracket which is in engagement with the rear locking geometry is parallel or at least substantially parallel to the installation direction.

[0016] In one embodiment, the second wire bracket rests at least almost against an outer side of the lid when the quick release is tensioned.

[0017] In one embodiment, a stop surface on the lid or housing for the first wire bracket is offset towards the interior of the lid or housing.

[0018] In one embodiment, the first pivot axis and the second pivot axis are aligned parallel to each other and radially spaced from each other.

[0019] In one embodiment, the retaining pins are arranged on a circumferential sealing edge of the replacement part.

[0020] In one embodiment, the replacement part is formed as a filter insert, in particular an air filter.

[0021] According to one aspect of the present invention, a motor vehicle is proposed comprising a housing arrangement as described above.

[0022] The clamp lock according to the invention enables flexible insertion control, requiring less installation space and enabling the use of standard quick-release fasteners.

[0023] According to the invention, retaining pins are attached to the replacement part. When the replacement part reaches its end position, these retaining pins form a rear-locking geometry with recesses formed in the housing. The housing cover features quick-release fasteners that can be hooked onto this geometry after being placed on the housing. When the quick-release fasteners are closed, the cover is firmly connected to the housing.

[0024] This ensures that the system, such as an air conditioner, can only be operated with a replacement part, such as a filter, installed, since the housing cover cannot be installed without the replacement part. This ensures the proper functioning of the filtration system.

[0025] Embodiments of the invention are explained in more detail below with reference to drawings.

[0026] Showing: Fig. 1 a schematic view of a housing with a replacement part and a cover for closing the housing, Fig. 2 a schematic detailed view of the housing with the cover and the replacement part, Fig. 3 a schematic detailed view of the housing with a bay window and the replacement part, Fig. 4 a schematic detailed view of the housing with the bay window and the replacement part when inserting a retaining pin into a through hole in the bay window, Fig. 5 a schematic detailed view of the housing with the bay window and the replacement part when further inserting the retaining pin into the through opening, Fig. 6 a schematic detailed view of the housing with the bay window and the replacement part with the retaining pin projecting beyond the through opening, Fig. 7 a schematic view of the housing with the replacement part inserted and the cover in the end position, with the quick release clamp tensioned and secured, Fig. 8 a schematic view of another embodiment of a housing with a replacement part and a cover for closing the housing, Fig. 9 a schematic detailed view of the housing with the cover and the replacement part, Fig. 10 a schematic detailed view of the housing with a bay window and the replacement part, Fig. 11 a schematic detailed view of the housing with the bay window and the replacement part when further inserting the retaining pin into the through opening, Fig. 12 a schematic detailed view of the housing with the bay window and the replacement part with the retaining pin projecting beyond the through opening, Fig. 13 a schematic view of the housing with the replacement part inserted and the cover in the end position, with the quick release clamp tensioned and secured, Fig. 14 a schematic view of a motor vehicle.

[0027] Corresponding parts are provided with the same reference numerals in all figures.

[0028] Fig. 1 is a schematic view of a housing 1 with a cover 2 for closing the housing 1. The housing 1 is configured in particular to accommodate a replacement part 20, for example, a filter insert, in particular an air filter. The cover 2 can be attached to the housing 1 by one or more quick-release fasteners 3, allowing multiple closing and opening. The quick-release fasteners 3 can be arranged on the cover 2.

[0029] Fig. 2 is a schematic detailed view of the housing 1 with the cover 2 and the replacement part 20.

[0030] In particular, the quick-release fasteners 3 can each have a first wire bracket 4, which is pivotably connected to the cover 2 about a first pivot axis A1. Furthermore, the quick-release fasteners 3 can each have a second wire bracket 5, which is pivotably connected to the first wire bracket 4 about a second pivot axis A2. The first pivot axis A1 and the second pivot axis A2 are aligned parallel to one another, but radially spaced from one another. The second wire bracket 5, when it engages in a rear-locking geometry 6, can be clamped by pivoting the first wire bracket 4 in the rear-locking geometry 6, wherein the force required for this is reduced compared to a holding force of the second wire bracket 5 by the lever effect of the first wire bracket 4, depending on the radial distance between the first pivot axis A1 and the second pivot axis A2 and on a lever length of the first wire bracket 4 starting from the first pivot axis A1.

[0031] The housing 1 has a number of recesses 10 corresponding in particular to the number of quick-release fasteners 3, which are arranged, for example, on the outside of the housing 1 and are each aligned with one of the quick-release fasteners 3 when the cover 2 is correctly placed on the housing 1.

[0032] Fig. 3 is a schematic detailed view of the housing 1 with a bay window 10 and the replacement part 20. The bay window 10 has a through opening 8 or slotted opening which runs obliquely in a direction away from the cover 2 towards the housing 1.

[0033] The replacement part 20 has a number of retaining pins 21 corresponding to the number of quick-release fasteners 3, which are arranged, for example, on a circumferential sealing edge 22 of the replacement part 20. The sealing edge 22 is configured for sealing contact with a circumferential sealing surface 7 of the housing 1, on which the recesses 10 are arranged on the outside. The retaining pins 21 are formed from a flexible material or have at least one flexible section and, in a relaxed, undeformed state, point in an installation direction ER of the replacement part 20, i.e., in a direction in which the replacement part 20 is moved for insertion into the housing 1. The retaining pins 21 are arranged such that, when the replacement part 20 is inserted into the housing 1, they are each guided into the through-opening 8 of the respectively assigned recess 10.

[0034] Fig. 4 is a schematic detailed view of the housing 1 with the bay window 10 and the replacement part 20 when inserting the retaining pin 21 into the through opening 8.

[0035] Due to the inclined through-opening 8 or link, the retaining pin 21 is deformed upon further insertion and follows the through-opening 8.

[0036] Fig. 5 is a schematic detailed view of the housing 1 with the bay window 10 and the replacement part 20 during further insertion of the retaining pin 21 into the through opening 8.

[0037] A length of each retaining pin 21 is selected such that the retaining pin 21 projects through the respective through-opening 8 and beyond when the sealing edge 22 rests on the sealing surface 7, and its end projecting beyond the through-opening 8 thus forms the rear locking geometry 6 for engagement with the respectively assigned quick release 3.

[0038] Fig. 6 is a schematic detailed view of the housing 1 with the bay window 10 and the replacement part 20 with the retaining pin 21 projecting beyond the through opening 8.

[0039] The retaining pin 21 may have a beveled end 23 configured to facilitate insertion into the inclined through-opening 8. Furthermore, the retaining pin 21 may have less flexibility at this end 23, which forms the rear locking geometry 6, compared to the rest of the retaining pin 21, for example, due to a greater material thickness.

[0040] After placing the replacement part 20 on the housing 1, the cover 2 is placed on the replacement part 20 as shown in Fig. 2. In this case, one of the quick-release fasteners 3 is aligned with one of the bays 10. The cover 2 is placed in the installation direction ER onto the housing 1 with the inserted replacement part 20 until a sealing surface 12 of the cover 2 rests on an upper side of the sealing edge 22.

[0041] The cover 2 can have a circumferential edge 9 which encloses the sealing edge 22 and optionally also the sealing surface 7 of the housing 1 in the end position.

[0042] When the cover 2 is placed on the housing 1 with the replacement part 20, an end 11 of the second wire bracket 5, which is remote from the second pivot axis A2, is pivoted below the bayonet 10 behind the rear locking geometry 6 formed by the end of the retaining pin 21 in the direction of the housing 1. This is possible because the first wire bracket 4 is pivoted away from the cover 2. By holding the end 11 of the second wire bracket 5 in this position and pivoting the first wire bracket 4 in the direction of the cover 2 beyond a position in which the end 11 lies in a plane with the first pivot axis A1 and the second pivot axis A2, until the first wire bracket 4 comes into contact with a stop, for example on the cover 2, the quick release 3 is tensioned and secured.

[0043] Fig. 7 is a schematic view of the housing 1 with the inserted replacement part 20 and the attached cover 2 in the end position, whereby the quick release 3 is tensioned and secured.

[0044] For example, two or four bay windows 10 can be provided for a corresponding number of quick-release fasteners 3 and retaining pins 21. In other embodiments, a different, in particular smaller or larger, number of bay windows 10, quick-release fasteners 3, and retaining pins 21 can be provided. In particular, only one bay window 10, one quick-release fastener 3, and one retaining pin 21 can be provided, wherein the cover 2 can be hinged on a side of the housing 1 opposite the quick-release fastener 3.

[0045] In a further embodiment, the recesses 10 can be arranged on the cover 2 and the quick-release fasteners 3 on the housing 1, wherein the retaining pins 21 are in this case aligned opposite to the installation direction ER in order to be guided through the recesses 10 when the cover 2 is placed on the housing 1 with the inserted replacement part 20, wherein the rear locking geometry 6 is formed by the retaining pins 21 projecting through the recesses 10 on the cover 2.

[0046] In particular, the first pivot axis A1 on the cover 2 can be shifted inwards to such an extent that an imaginary connecting line between the second pivot axis A2, when the quick release 3 is tensioned, and the end 11 of the second wire bracket 5 which is in engagement with the rear locking geometry 6 and which is also shifted towards the interior of the housing 1 due to the oblique guidance of the retaining pin 21, lies parallel or at least essentially parallel to the installation direction ER, thus achieving a particularly favorable force introduction. The second wire bracket 5 can at least almost rest against an outer side of the cover 2. In this way, both installation space and assembly space can be saved. A stop surface 24 on the cover 2 for the first wire bracket 4 can also be offset towards the interior of the cover 2 for this purpose.

[0047] Fig. Figure 8 is a schematic view of another embodiment of a housing 1 with a cover 2 for closing the housing 1. The housing 1 is configured in particular to accommodate a replacement part 20, for example, a filter insert, in particular an air filter. The cover 2 can be attached to the housing 1 by one or more quick-release fasteners 3, allowing multiple closing and opening. The quick-release fasteners 3 can be arranged on the cover 2.

[0048] Fig. 9 is a schematic detailed view of the housing 1 with the cover 2 and the replacement part 20.

[0049] In particular, the quick-release fasteners 3 can each have a first wire bracket 4, which is pivotably connected to the cover 2 about a first pivot axis A1. Furthermore, the quick-release fasteners 3 can each have a second wire bracket 5, which is pivotably connected to the first wire bracket 4 about a second pivot axis A2. The first pivot axis A1 and the second pivot axis A2 are aligned parallel to one another, but radially spaced from one another. The second wire bracket 5, when it engages in a rear-locking geometry 6, can be clamped by pivoting the first wire bracket 4 in the rear-locking geometry 6, wherein the force required for this is reduced compared to a holding force of the second wire bracket 5 by the lever effect of the first wire bracket 4, depending on the radial distance between the first pivot axis A1 and the second pivot axis A2 and on a lever length of the first wire bracket 4 starting from the first pivot axis A1.

[0050] The housing 1 has a number of recesses 10 corresponding in particular to the number of quick-release fasteners 3, which are arranged, for example, inside the housing 1 and are each aligned with one of the quick-release fasteners 3 when the cover 2 is correctly placed on the housing 1.

[0051] Fig. 10 is a schematic detailed view of the housing 1 with a bay window 10 and the replacement part 20. The bay window 10 has a through opening 8 or slotted opening which runs obliquely in a direction away from the cover 2 in the direction away from the housing 1.

[0052] The replacement part 20 has a number of retaining pins 21 corresponding to the number of quick-release fasteners 3. The retaining pins 21 are formed from a flexible material or have at least one flexible section and, in a relaxed, undeformed state, point in an installation direction ER of the replacement part 20, i.e., in a direction in which the replacement part 20 is moved for insertion into the housing 1. The retaining pins 21 are arranged such that, when the replacement part 20 is inserted into the housing 1, they are each guided into the through-opening 8 of the respectively associated bay window 10.

[0053] Fig. 11 is a schematic detailed view of the housing 1 with the bay window 10 and the replacement part 20 during further insertion of the retaining pin 21 into the through opening 8.

[0054] Due to the inclined through-opening 8 or link, the retaining pin 21 is deformed upon further insertion and follows the through-opening 8.

[0055] Fig. 12 is a schematic detailed view of the housing 1 with the bay window 10 and the replacement part 20 with the retaining pin 21 projecting beyond the through opening 8.

[0056] The length of each retaining pin 21 is selected such that the retaining pin 21 extends through and beyond the respective through-opening 8 when the replacement part 20 has reached a final position in the housing 1. A sealing edge 22 of the replacement part 20 can rest around the respective retaining pin 21 on an upper side of the respective bay window 10. The end 23 of the retaining pin 21 extending beyond the through-opening 8 thus forms the rear locking geometry 6 for engagement with the respective associated quick release 3.

[0057] The retaining pin 21 may have a beveled end (not shown) configured to facilitate insertion into the inclined through-opening 8. Furthermore, the retaining pin 21 may have less flexibility at this end 23, which forms the rear locking geometry 6, compared to the rest of the retaining pin 21, for example, due to a greater material thickness (not shown).

[0058] After placing the replacement part 20 on the housing 1, the cover 2 is placed on the replacement part 20 as shown in Fig. 9. In this case, one of the quick-release clamps 3 is aligned with one of the bay windows 10. The cover 2 is placed in the installation direction ER onto the housing 1 with the inserted replacement part 20 until a sealing surface 12 of the cover 2 rests on the upper side of a sealing edge 13 on the housing 1.

[0059] The cover 2 can have a circumferential edge 9 which encloses the sealing edge 13 of the housing 1 in the end position.

[0060] When the cover 2 is placed on the housing 1 with the replacement part 20, an end 11 of the second wire bracket 5, which is remote from the second pivot axis A2, is pivoted below the bayonet 10 behind the rear locking geometry 6 formed by the end of the retaining pin 21 in the direction of the housing 1. This is possible because the first wire bracket 4 is pivoted away from the cover 2. By holding the end 11 of the second wire bracket 5 in this position and pivoting the first wire bracket 4 in the direction of the cover 2 beyond a position in which the end 11 lies in a plane with the first pivot axis A1 and the second pivot axis A2, until the first wire bracket 4 comes into contact with a stop, for example on the cover 2, the quick release 3 is tensioned and secured.

[0061] Fig. 13 is a schematic view of the housing 1 with the inserted replacement part 20 and the attached cover 2 in the end position, whereby the quick release 3 is tensioned and secured.

[0062] For example, two or four bay windows 10 can be provided for a corresponding number of quick-release fasteners 3 and retaining pins 21. In other embodiments, a different, in particular smaller or larger, number of bay windows 10, quick-release fasteners 3, and retaining pins 21 can be provided. In particular, only one bay window 10, one quick-release fastener 3, and one retaining pin 21 can be provided, wherein the cover 2 can be hinged on a side of the housing 1 opposite the quick-release fastener 3.

[0063] In a further embodiment, the recesses 10 can be arranged on the cover 2 and the quick-release fasteners 3 on the housing 1, wherein the retaining pins 21 are in this case aligned opposite to the installation direction ER in order to be guided through the recesses 10 when the cover 2 is placed on the housing 1 with the inserted replacement part 20, wherein the rear locking geometry 6 is formed by the retaining pins 21 projecting through the recesses 10 on the cover 2.

[0064] In particular, the first pivot axis A1 on the cover 2 can be positioned such that an imaginary connecting line between the second pivot axis A2 when the quick release 3 is tensioned and the end 11 of the second wire bracket 5 engaged with the rear locking geometry 6, which is displaced outward due to the oblique guidance of the retaining pin 21 on the housing 1, lies parallel or at least substantially parallel to the installation direction ER, thus achieving a particularly favorable force introduction. The second wire bracket 5 can at least almost bear against an outer side of the cover 2. In this way, both installation space and assembly space can be saved.

[0065] Due to the inclined guidance of the flexible retaining pin 21 from the inside to the outside, a standardized quick release 3 with a validated geometry can also be used in this embodiment instead of a sharply curved quick release, which would have to be guided around the edge of the housing 1 and the cover 2 with a rigid retaining pin 21 and an otherwise comparable configuration of the housing 1, cover 2, and replacement part 20. This saves costs by using standardized quick release 3 and, on the other hand, saves the installation space and assembly space that a sharply curved quick release would otherwise require.

[0066] The housing 1 with the cover 2 and the replacement part 20 can, for example, be part of a motor vehicle 30, in particular a commercial vehicle. Fig. 14 is a schematic view of a motor vehicle 30. List of reference symbols 1 housing 2 lids 3 quick releases 4 first wire bracket 5 second wire bracket 6 Rear rest geometry 7 Sealing surface 8 passage opening 9 surrounding edge 10 bay windows 11 End 12 Sealing surface 13 Sealing edge 20 replacement parts 21 retaining pins 22 Sealing edge 23 End 24 Stop surface 30 motor vehicles A1 first swivel axis A2 second swivel axis ER installation direction

Claims

[1] Housing arrangement, comprising a housing (1), a cover (2) for closing the housing (1) and a replacement part (20), wherein the housing (1) is configured to receive the replacement part (20), further comprising at least one quick-release fastener (3) for fastening the cover (2) to the housing (1) by engagement of the quick-release fastener (3) in a respective rear-locking geometry (6), wherein the replacement part (20) has a number of retaining pins (21) corresponding to the number of quick-release fasteners (3), which together with the housing (1) or the cover (2) form the rear-locking geometry (6) when the replacement part (20) is inserted into the housing (1) or the cover (2) is placed on the replacement part (20), wherein the housing (1) or the cover (2) has a number of recesses (10) corresponding to the number of quick-release fasteners (3), each having a through-opening (8) for one of the retaining pins (21). wherein the bay windows (10) are each aligned with one of the quick-release fasteners (3),when the cover (2) is placed on the housing (1), each of the retaining pins (21) having a length such that the retaining pin (21) projects through the respective through-opening (8) and beyond, when the replacement part (20) is inserted into the housing (1), so that its end projecting beyond the through-opening (8) forms the rear locking geometry (6), , characterized by that the retaining pins (21) are formed from a flexible material or at least have a flexible section, wherein the through-openings (8) run obliquely to an installation direction (ER) of the replacement part (20), so that the retaining pins (21) are deflected when inserted into the through-opening (8). [2] Housing arrangement according to claim 1, characterized by that the retaining pins (21) point in a relaxed, non-deformed state in an installation direction (ER) of the replacement part (20). [3] Housing arrangement according to claim 1 or 2, characterized bythat the through opening (8) runs obliquely in the direction towards the housing (1) or the cover (2) or obliquely in the direction away from the housing (1) or cover (2). [4] Housing arrangement according to one of the preceding claims, characterized by that the bay windows (10) are arranged on the outside of the housing (1) or cover (2) or on the inside of the housing (1) or cover (2). [5] Housing arrangement according to one of the preceding claims, characterized by that the retaining pin (21) has a bevelled end (23) which is configured to facilitate insertion into the inclined through opening (8). [6] Housing arrangement according to one of the preceding claims, characterized by that the retaining pin (21) has, at an end (23) forming the rear locking geometry (6), a lower flexibility than the rest of the retaining pin (21) or the flexible section, in particular due to a greater material thickness. [7] Housing arrangement according to one of the preceding claims, characterized by in that the at least one quick release (3) has a first wire bracket (4) which is pivotally connected to the cover (2) or housing (1) about a first pivot axis (A1), and a second wire bracket (5) which is pivotally connected to the first wire bracket (4) about a second pivot axis (A2) and is configured to engage with the rear locking geometry (6), wherein the first pivot axis (A1) is arranged on the cover (2) or housing (1) in such a way that an imaginary connecting line between the second pivot axis (A2) when the quick release (3) is tensioned and the end (11) of the second wire bracket (5) which is in engagement with the rear locking geometry (6) lies parallel or at least substantially parallel to the installation direction (ER). [8] Housing arrangement according to claim 7, characterized bythat the second wire bracket (5) rests at least almost against an outer side of the cover (2) when the quick release (3) is tensioned. [9] Housing arrangement according to claim 7 or 8, characterized by that a stop surface (24) on the cover (2) or housing (1) for the first wire bracket (4) is offset towards the interior of the cover (2) or housing (1). [10] Housing arrangement according to one of the preceding claims, characterized by that the replacement part (20) is formed as a filter insert, in particular an air filter.

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