Housing assembly

The housing arrangement with flexible retaining pins and quick-release fasteners ensures secure attachment of lids to housings, ensuring filtration systems operate only with replaceable parts installed, addressing the issue of ineffective filtration without filters.

WO2025261839A1PCT designated stage Publication Date: 2025-12-26DAIMLER TRUCK AG
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Patent Information

Application Number
PCT/EP2025/066169
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-20
Filing Date
2025-06-10
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

Existing housing arrangements that allow direct connection or fixation of lids to housings without filters render filtration systems ineffective, as they can be operated without filters, necessitating a novel solution for secure attachment that ensures filtration functionality.

Method used

A housing arrangement with a flexible retaining pin system that forms a rear locking geometry upon insertion of a replaceable part, using quick-release fasteners that engage with a rear locking mechanism, allowing for secure closure and ensuring the filtration system operates only with the replaceable part installed.

Benefits of technology

Ensures the filtration system operates correctly by preventing operation without the replaceable part, such as a filter, by using flexible retaining pins and quick-release fasteners that require less installation space and allow standard fasteners, thus maintaining filtration functionality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a housing assembly, comprising a housing (1), a cover (2) and an exchange part (20) for insertion into the housing (1), also comprising at least one quick-release clamp (3) for fastening the cover (2) to the housing (1) by engagement of the quick-release clamp (3) into a respective latching geometry (6), wherein the exchange part (20) has a number of retaining pins (21) corresponding to the number of quick-release clamps (3), which retaining pins (21), together with the housing (1) or the cover (2), form the latching geometry (6) when the exchange part (20) is inserted into the housing (1) or the cover (2) is placed on the exchange part (20), wherein the housing (1) or the cover (2) has a number of cores (10) corresponding to the number of quick-release clamps (3), each core having a through-hole (8) for one of the retaining pins (21), wherein each of the retaining pins (21) has such a length that the retaining pin (21) projects through the respective through-hole (8) and beyond same when the exchange part (20) is inserted into the housing (1), such that the end of the retaining pin projecting beyond the through-hole (8) forms the latching geometry (6), wherein the retaining pins (21) are made of a flexible material or have at least one flexible section, wherein the through-holes (8) extend obliquely to an installation direction (ER) of the exchange part (20) such that the retaining pins (21) are deflected as they are pushed into the through-hole (8).
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Description

[0001] Housing arrangement

[0002] The invention relates to a housing arrangement according to the preamble of claim 1.

[0003] When attaching a lid to a housing, it is known to use a direct connection or fixation of the lid to the housing. This allows the lid to be mounted even without a filter, and a system of which the housing with the lid is a part, such as an air conditioner or an air filter housing, could be operated without a filter. This renders the filtration function ineffective.

[0004] WO 2012 / 110604 A1 describes a filter housing for a cyclone filter, designed for the internal reception of 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 received 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.

[0005] WO 2017 / 180875 A1 covers a filter system with one or more filter elements, wherein a locking tab connects the cover over the filter to the housing once the assembly is fully assembled in the housing. The locking tab is attached to a fixed hook part into which the fastening element can engage. The locking tab is not connected to the filter itself, but only to the housing.

[0006] The subsequently published German patent DE 102023 105 071 A1 also describes a housing arrangement in which an interchangeable part is accommodated. The connection between the cover and the housing is achieved by at least one quick-release fastener, which engages in a rear-locking geometry. Fixed retaining pins attached to the interchangeable part, together with the housing or cover, form this geometry. However, the retaining pins, and thus also the quick-release fastener, are positioned radially further outwards when locked. This results in a comparatively larger installation space requirement.

[0007] The invention is based on the objective of providing a novel solution for closing a housing with a lid.

[0008] The problem is solved according to the invention by a housing arrangement with the features of claim 1.

[0009] Advantageous embodiments of the invention are the subject of the dependent claims.

[0010] A housing arrangement is proposed comprising a housing, a cover for closing the housing, and an exchange part, wherein the housing is configured to receive the exchange part, further comprising at least one quick-release fastener for attaching the cover to the housing by engaging the quick-release fastener with a respective rear locking geometry, wherein the exchange 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 exchange part is inserted into the housing or the cover is placed on the exchange part, wherein the housing or the cover has a number of recesses corresponding to the number of quick-release fasteners, each with 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, and wherein each of the retaining pins has a length such thatthat the retaining pin projects through and beyond the respective through-opening when the replacement part is inserted into the housing, so that its end projecting beyond the through-opening forms the rear locking geometry. According to the invention, the retaining pins are made of a flexible material or at least have a flexible section, wherein the through-openings run obliquely to an installation direction of the replacement part, so that the retaining pins are deflected when inserted into the through-opening.

[0011] In one embodiment, the retaining pins point in an installation direction of the replacement part in a relaxed, undeformed state.

[0012] In one embodiment, the through-openings run obliquely towards the housing or the cover, or obliquely away from the housing or the cover. In another embodiment, the bay windows are arranged on the outside of the housing or the cover, or on the inside of the housing or the cover.

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

[0014] In one embodiment, the retaining pin at an end forming the rear latch geometry has less flexibility 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 fastener has a first wire clip which is pivotably attached to the cover or housing about a first pivot axis, and a second wire clip which is pivotably attached to the first wire clip 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 such that an imaginary connecting line between the second pivot axis when the quick-release fastener is tightened and the end of the second wire clip which is engaged with the rear locking geometry is parallel or at least substantially parallel to the installation direction.

[0016] In one embodiment, the second wire clip rests at least almost against an outer surface of the lid when the quick-release fastener is tightened.

[0017] In one embodiment, a stop surface on the lid or housing for the first wire clip 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 apart.

[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. The clamping fastener according to the invention enables flexible insertion control, requiring less installation space and allowing the use of standard quick-release fasteners.

[0022] According to the invention, retaining pins are attached to the replacement part. When the replacement part reaches its end position, these retaining pins, together with recesses formed in the housing, form a locking mechanism. The housing cover has quick-release fasteners that can be hooked onto this mechanism after the cover is placed on the housing. When the quick-release fasteners are closed, the cover is firmly connected to the housing.

[0023] This ensures that the system, for example an air conditioner, can only be operated with a replacement part, such as a filter, installed, as the housing cover cannot be fitted without the replacement part. This guarantees the proper functioning of the filtration system.

[0024] Exemplary embodiments of the invention are explained in more detail below with reference to drawings.

[0025] This shows:

[0026] Fig. 1 shows a schematic view of a housing with a replacement part and a cover for closing the housing.

[0027] Fig. 2 shows a schematic detail view of the housing with the lid and the replacement part.

[0028] Fig. 3 shows a schematic detail view of the housing with a bay window and the replacement part.

[0029] Fig. 4 shows a schematic detail view of the housing with the bay window and the replacement part during the insertion of a retaining pin into a through-hole in the bay window.

[0030] Fig. 5 shows a schematic detail view of the housing with the bay window and the replacement part during further insertion of the retaining pin into the through-hole.

[0031] Fig. 6 shows a schematic detail view of the housing with the bay window and the replacement part with the retaining pin projecting beyond the through-opening; Fig. 7 shows a schematic view of the housing with the inserted replacement part and the attached cover in the final position, with the quick-release fastener tensioned and secured.

[0032] Fig. 8 shows a schematic view of another embodiment of a housing with a replacement part and a lid for closing the housing.

[0033] Fig. 9 shows a schematic detail view of the housing with the lid and the replacement part.

[0034] Fig. 10 shows a schematic detail view of the housing with a bay window and the replacement part.

[0035] Fig. 11 shows a schematic detail view of the housing with the bay window and the replacement part during further insertion of the retaining pin into the through-opening,

[0036] Fig. 12 shows a schematic detail view of the housing with the bay window and the replacement part with the retaining pin projecting beyond the through-opening,

[0037] Fig. 13 shows a schematic view of the housing with the inserted replacement part and the attached cover in the final position, with the quick-release fastener tensioned and secured.

[0038] Fig. 14 is a schematic view of a motor vehicle.

[0039] Corresponding parts are marked with the same reference symbols in all figures.

[0040] Figure 1 is a schematic view of a housing 1 with a lid 2 for closing the housing 1. The housing 1 is configured, in particular, to receive a replaceable part 20, for example, a filter element, especially an air filter. The lid 2 can be attached to the housing 1 by one or more quick-release fasteners 3, allowing for repeated opening and closing. The quick-release fasteners 3 can be arranged on the lid 2.

[0041] Figure 2 is a schematic detail view of the housing 1 with the lid 2 and the replacement part 20.

[0042] In particular, the quick-release fasteners 3 can each have a first wire clip 4 which is pivotally connected to the cover 2 about a first pivot axis A1. Furthermore, the quick-release fasteners 3 can each have a second wire clip 5 which is pivotally connected to the first wire clip 4 about a second pivot axis A2. The first pivot axis A1 and the second pivot axis A2 are aligned parallel to each other but radially spaced apart. When the second wire clip 5 engages in a rear locking geometry 6, it can be clamped in the rear locking geometry 6 by pivoting the first wire clip 4, the force required for this being determined by the leverage effect of the first wire clip 4, depending on the radial distance between the first pivot axis A1 and the second.

[0043] The pivot axis A2 and the lever length of the first wire bracket 4 from the first pivot axis A1 is reduced compared to the holding force of the second wire bracket 5.

[0044] 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.

[0045] Figure 3 is a schematic detail view of the housing 1 with a bay window 10 and the exchange part 20. The bay window 10 has a through-opening 8 or cam that runs obliquely towards the housing 1 in a direction away from the cover 2.

[0046] 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 the outside of which the projections 10 are arranged. The retaining pins 21 are made of a flexible material or at least have a flexible section and, in a relaxed, undeformed state, point in a

[0047] Installation direction ER of the replacement part 20, that is, in the direction in which the replacement part 20 is moved to be inserted 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 guided into the through-opening 8 of the respective associated recess 10.

[0048] Figure 4 is a schematic detail view of the housing 1 with the bay window 10 and the exchange part 20 when the retaining pin 21 is inserted into the through-opening 8.

[0049] Due to the sloping passage opening 8 or cam, the retaining pin 21 is deformed as it is further inserted and follows the passage opening 8. Figure 5 is a schematic detail view of the housing 1 with the bay window 10 and the exchange part 20 as the retaining pin 21 is further inserted into the passage opening 8.

[0050] The length of each retaining pin 21 is chosen such that the retaining pin 21 extends through the respective through-opening 8 and beyond when the sealing edge 22 rests on the sealing surface 7, and its end extending beyond the through-opening 8 forms the rear locking geometry 6 for engagement of the respective associated quick-release fastener 3.

[0051] Figure 6 is a schematic detail view of the housing 1 with the bay window 10 and the exchange part 20 with the retaining pin 21 projecting beyond the through-opening 8.

[0052] The retaining pin 21 can have a chamfered end 23 configured to facilitate insertion into the inclined through-opening 8. Furthermore, at this end 23, which forms the rear locking geometry 6, the retaining pin 21 can exhibit less flexibility than the rest of the retaining pin 21, for example, by having a greater material thickness.

[0053] After placing the replacement part 20 onto the housing 1, the cover 2 is placed onto the replacement part 20 as shown in Figure 2. Each of the quick-release fasteners 3 is aligned with one of the recesses 10. The cover 2 is placed onto the housing 1 with the inserted replacement part 20 in the installation direction ER until a sealing surface 12 of the cover 2 rests on an upper surface of the sealing rim 22.

[0054] The cover 2 can have a circumferential rim 9 that surrounds the sealing rim 22 and optionally also the sealing surface 7 of the housing 1 in the final position.

[0055] When the cover 2 is placed on the housing 1 with the replacement part 20, an end 11 of the second wire clip 5, located away from the second pivot axis A2, is pivoted below the recess 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 clip 4 has pivoted away from the cover 2. By holding the end 11 of the second wire clip 5 in this position and pivoting the first wire clip 4 towards the cover 2 beyond a point where the end 11 lies in the same plane as the first pivot axis A1 and the second pivot axis A2, until the first wire clip 4 reaches a stop, for example against the cover 2, the quick-release fastener 3 is tensioned and secured. Figure 7 is a schematic view of the housing 1 with the inserted replacement part 20 and the attached cover 2 in the final position, with the quick-release fastener 3 tensioned and secured.

[0056] For example, two or four recesses 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 recesses 10, quick-release fasteners 3, and retaining pins 21 can be provided. In particular, only one recess 10, one quick-release fastener 3, and one retaining pin 21 can also be provided, wherein the cover 2 can be hinged to a side of the housing 1 opposite the quick-release fastener 3.

[0057] In a further embodiment, the bayonets 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 oriented opposite to the installation direction ER in order to be guided through the bayonets 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 bayonets 10 on the cover 2.

[0058] In particular, the first pivot axis A1 on the cover 2 can be shifted so far inwards that an imaginary connecting line between the second pivot axis A2, when the quick-release clamp 3 is tightened, and the end 11 of the second wire clip 5, which engages with the rear locking geometry 6 and is also shifted towards the interior of the housing 1 due to the inclined guide of the retaining pin 21, lies parallel or at least substantially parallel to the installation direction ER, thus achieving a particularly favorable force transmission. The second wire clip 5 can be positioned almost against an outer surface of the cover 2. In this way, both installation and assembly space can be saved. A stop surface 24 on the cover 2 for the first wire clip 4 can also be shifted towards the interior of the cover 2 for this purpose.

[0059] Figure 8 is a schematic view of another embodiment of a housing 1 with a lid 2 for closing the housing 1. The housing 1 is configured, in particular, to receive a replaceable part 20, for example, a filter element, especially an air filter. The lid 2 can be attached to the housing 1 by one or more quick-release fasteners 3, allowing for repeated opening and closing. The quick-release fasteners 3 can be arranged on the lid 2. Figure 9 is a schematic detail view of the housing 1 with the lid 2 and the replaceable part 20.

[0060] In particular, the quick-release fasteners 3 can each have a first wire clip 4 which is pivotally connected to the cover 2 about a first pivot axis A1. Furthermore, the quick-release fasteners 3 can each have a second wire clip 5 which is pivotally connected to the first wire clip 4 about a second pivot axis A2. The first pivot axis A1 and the second pivot axis A2 are aligned parallel to each other, but radially spaced apart. When the second wire clip 5 engages in a rear locking geometry 6, it can be clamped in the rear locking geometry 6 by pivoting the first wire clip 4, the force required for this being determined by the leverage effect of the first wire clip 4, depending on the radial distance between the first pivot axis A1 and the second.

[0061] The pivot axis A2 and the lever length of the first wire bracket 4 from the first pivot axis A1 is reduced compared to the holding force of the second wire bracket 5.

[0062] 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.

[0063] Figure 10 is a schematic detail view of the housing 1 with a bay window 10 and the exchange part 20. The bay window 10 has a through-opening 8 or cam that runs obliquely away from the housing 1 in a direction away from the cover 2.

[0064] 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 made of a flexible material or at least have a 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 to be inserted 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 guided into the through-opening 8 of the respective corresponding recess 10.

[0065] Figure 11 is a schematic detail view of the housing 1 with the bay window 10 and the exchange part 20 during further insertion of the retaining pin 21 into the through opening 8.

[0066] Due to the sloping passage opening 8 or cam, the retaining pin 21 is deformed as it is further inserted and follows the passage opening 8. Figure 12 is a schematic detail view of the housing 1 with the bay window 10 and the replacement part 20 with the retaining pin 21 projecting beyond the passage opening 8.

[0067] The length of each retaining pin 21 is selected such that the retaining pin 21 projects through and beyond the respective through-opening 8 when the replacement part 20 has reached its final position in the housing 1. A sealing edge 22 of the replacement part 20 can then rest around the respective retaining pin 21 on the upper surface of the respective recess 10. The end 23 of the retaining pin 21 projecting beyond the through-opening 8 thus forms the rear locking geometry 6 for engagement with the respective quick-release fastener 3.

[0068] The retaining pin 21 can have a chamfered end (not shown) configured to facilitate insertion into the sloping through-hole 8. Furthermore, the retaining pin 21 can 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, by having a greater material thickness (not shown).

[0069] After placing the replacement part 20 onto the housing 1, the cover 2 is placed onto the replacement part 20 as shown in Figure 9. Each of the quick-release fasteners 3 is aligned with one of the recesses 10. The cover 2 is placed onto the housing 1 with the inserted replacement part 20 in the installation direction ER until a sealing surface 12 of the cover 2 rests on the upper side of a sealing rim 13 on the housing 1.

[0070] The cover 2 can have a circumferential rim 9 that surrounds the sealing rim 13 of the housing 1 in the final position.

[0071] When the cover 2 is placed on the housing 1 with the replacement part 20, an end 11 of the second wire clip 5, located away from the second pivot axis A2, is pivoted below the recess 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 clip 4 has pivoted away from the cover 2. By holding the end 11 of the second wire clip 5 in this position and pivoting the first wire clip 4 towards the cover 2 beyond a point where the end 11 lies in the same plane as the first pivot axis A1 and the second pivot axis A2, until the first wire clip 4 reaches a stop, for example against the cover 2, the quick-release fastener 3 is tensioned and secured. Figure 13 is a schematic view of the housing 1 with the inserted replacement part 20 and the attached cover 2 in the final position, with the quick-release fastener 3 tensioned and secured.

[0072] For example, two or four recesses 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 recesses 10, quick-release fasteners 3, and retaining pins 21 can be provided. In particular, only one recess 10, one quick-release fastener 3, and one retaining pin 21 can also be provided, wherein the cover 2 can be hinged to a side of the housing 1 opposite the quick-release fastener 3.

[0073] In a further embodiment, the bayonets 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 oriented opposite to the installation direction ER in order to be guided through the bayonets 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 bayonets 10 on the cover 2.

[0074] 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 clamp 3 is tightened) and the end 11 of the second wire clip 5 (which engages with the rear locking geometry 6 and is offset outwards due to the inclined guide 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 transmission. The second wire clip 5 can be positioned at least almost against an outer surface of the cover 2. In this way, both installation space and assembly space can be saved.

[0075] Due to the inclined guidance of the flexible retaining pin 21 from the inside to the outside, a standardized quick-release fastener 3 with validated geometry can be used in this embodiment instead of a strongly curved quick-release fastener, which, with a rigid retaining pin 21 and otherwise comparable configuration of housing 1, cover 2, and replacement part 20, would have to be guided around the edge of housing 1 and cover 2. This saves costs through the use of standardized quick-release fasteners 3 and also saves installation and assembly space that a strongly curved quick-release fastener would otherwise require. 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. Figure 14 is a schematic view of a motor vehicle 30.

[0076] Reference symbol list

[0077] 1 case

[0078] 2 lids

[0079] 3 quick-release fasteners

[0080] 4 first wire hanger

[0081] 5 second wire hanger

[0082] 6 Rear bumper geometry

[0083] 7 Sealing surface

[0084] 8 Through opening

[0085] 9 surrounding border

[0086] 10 bay windows

[0087] 11 End

[0088] 12 sealing surface

[0089] 13 Sealing edge

[0090] 20 exchange parts

[0091] 21 retaining pins

[0092] 22 Sealing edge

[0093] 23 End

[0094] 24 stop surface

[0095] 30 motor vehicles

[0096] A1 first pivot axis

[0097] A2 second pivot axis

[0098] ER installation direction

Claims

Patent claims 1. Housing arrangement comprising a housing (1), a cover (2) for closing the housing (1), and an exchange part (20), wherein the housing (1) is configured to receive the exchange part (20), further comprising at least one quick-release fastener (3) for attaching the cover (2) to the housing (1) by the quick-release fastener (3) engaging a respective rear locking geometry (6), wherein the exchange 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 exchange part (20) is inserted into the housing (1) or the cover (2) is placed on the exchange 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 with 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 and beyond the respective through-opening (8) 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 in that the retaining pins (21) are made of a flexible material or at least have a 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).

2. Housing arrangement according to claim 1, characterized in that the retaining pins (21) point in an installation direction (ER) of the replacement part (20) in a relaxed, non-deformed state.

3. Housing arrangement according to claim 1 or 2, characterized in that the through-opening (8) is inclined towards the housing (1) or lid (2) towards or diagonally away from housing (1) or lid (2).

4. Housing arrangement according to one of the preceding claims, characterized in that the bay windows (10) are arranged on the outside of the housing (1) or cover (2) or inside the housing (1) or cover (2).

5. Housing arrangement according to one of the preceding claims, characterized in that the retaining pin (21) has a chamfered end (23) configured to facilitate insertion into the sloping through-opening (8).

6. Housing arrangement according to one of the preceding claims, characterized in that the retaining pin (21) at an end (23) forming the rear locking geometry (6) has a lower flexibility compared to the rest of the retaining pin (21) or the flexible section, in particular by a greater material thickness.

7. Housing arrangement according to one of the preceding claims, characterized in that the at least one quick-release fastener (3) has a first wire clip (4) which is pivotably connected to the cover (2) or housing (1) about a first pivot axis (A1), and a second wire clip (5) which is pivotably connected to the first wire clip (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) such that an imaginary connecting line between the second pivot axis (A2) when the quick-release fastener (3) is tightened and the end (11) of the second wire clip (5) which is engaged with the rear locking geometry (6) is parallel or at least substantially parallel to the installation direction (ER).

8. Housing arrangement according to claim 7, characterized in that the second wire clip (5) rests at least almost against an outside of the cover (2) when the quick-release fastener (3) is tensioned.

9. Housing arrangement according to claim 7 or 8, characterized in that a stop surface (24) is provided on the cover (2) or housing (1) for the first wire clip (4) is offset towards the inside of the lid (2) or housing (1).

10. Housing arrangement according to one of the preceding claims, characterized in that the replacement part (20) is formed as a filter insert, in particular an air filter.

Citation Information

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