MODULAR FILTER SYSTEM

Abstract

A combined bypass filter element module is disclosed. The combined bypass filter element module includes at least one filter slot for receiving at least one filter element that can be arranged in the at least one filter slot. A bypass flap device is arranged in a flow direction in parallel with the at least one filter slot.

Claims

1. A combined bypass filter element module, comprising: at least one filter slot for receiving at least one filter element that can be arranged therein the at least one filter slot, and a bypass flap device that is arranged in a flow direction in parallel with the at least one filter slot.

2. The combined bypass filter element module according to claim 1, wherein the bypass flap device comprises a pivotable flap or a sliding flap.

3. The combined bypass filter element module according to claim 1, wherein the at least one filter element is replaceable.

4. A building kit for a modular filter system, comprising: a housing with at least one first insertion slotand a second insertion slot, at least one filter element that is insertable into one of the at least one first insertion slot and the second insertion slot, at least one combined bypass filter element module that is alternatively insertable into the other one of the at least one first insertion slot and the second insertion slot, the at least one combined bypass filter element module including at least one filter slot for receiving at least one further filter element and a bypass flap device that is arranged in a flow direction in parallel with the at least one filter slot.

5. The building kit according to claim 4, wherein the at least one first insertion slot and the second insertion slot are different in size.

6. The building kit according to claim 4, wherein the at least one first insertion slot and the second insertion slot are arranged in the flow direction one after the other.

7. The building kit according to, claim 4, wherein the housing comprises a fresh air inlet and a circulating air inlet.

8. The building kit according to claim 7, wherein in a region of the fresh air inlet a fresh air flap device is arranged and in a region of the circulating air inlet a circulating air flap device is arranged.

9. The building kit according to claim 8, wherein the fresh air flap device is arranged upstream of the at least one first insertion slot and of the second insertion slot, and the circulating air flap device is arranged upstream of the second insertion slots.

10. The building kit according to, claim 4, further comprising at least one closure element that is insertable into and closes one of the at least one first insertion slot and the second insertion slot.

11. A modular filter system produced from the building kit according to claim 4.

12. An air-conditioning system, comprising: a modular filter system the modular filter system including: a housing with a first insertion slot and a second insertion slot; at least one filter element arranged in one of the first insertion slot and the second insertion slot; a combined bypass filter element module arranged in the other one of the first insertion slot and the second insertion slot, the combined bypass filter element module including at least one filter slot with at least one further filter arranged in the at least one filter slot, and a bypass flap device that is arranged in parallel with the at least one filter slot relative to a flow direction.

13. The air-conditioning system according to claim 12, wherein the first insertion slot and the second insertion slot are different in size.

14. The air-conditioning system according to claim 12, wherein the first insertion slot and the second insertion slot are arranged one after the other in the flow direction.

15. The air-conditioning system according to claim 12, wherein the bypass flap device comprises a pivotable flap or a sliding flap.

16. The air-conditioning system according to claim 12, wherein the housing comprises a fresh air inlet and a circulating air inlet.

17. The air-conditioning system according to claim 16, further comprising a fresh air flap device arranged at the fresh air inlet and a circulating air flap device arranged at the circulating air inlet.

18. The air-conditioning system according to claim 17, wherein the fresh air flap device is arranged upstream of the first insertion slot and of the second insertion slot relative to the flow direction, and the circulating air flap device is arranged upstream of the second insertion slot relative to the flow direction.

19. The air-conditioning system according to claim 12, further comprising at least one closure element that is inserted into and closes one of the first insertion slot and the second insertion slot.

20. The air-conditioning system according to claim 12, wherein the combined bypass filter element module is arranged upstream of the at least one filter element relative to the flow direction.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] It shows, in each case schematically,

[0018] FIG. 1 a view of a combined bypass filter element module,

[0019] FIG. 2 a modular filter system having a housing and a bypass filter element module inserted therein,

[0020] FIG. 3 a modular filter system produced from a building kit according to the invention with a filter element inserted into an associated insertion slot,

[0021] FIG. 4 a representation as in FIG. 2, however with a filter element arranged downstream of the bypass filter element module,

[0022] FIG. 5 a filter system produced from a building kit for an HVAC system with a bypass filter element module according to the invention in a first insertion slot,

[0023] FIG. 6 a representation as in FIG. 5, however with a filter element arranged in the first insertion slot.

DETAILED DESCRIPTION

[0024] According to FIG. 1, a combined bypass filter element module 1 according to the invention comprises a frame 2 and at least one filter slot 3 for receiving for example a filter element 4 (see FIG. 2). In the flow direction 5 in parallel with the at least one filter slot 3 or the filter element 4 arranged therein, a bypass flap device 6 is arranged, via which a flow through the filter slot 3 and the filter element 4 arranged therein can be adjusted. With closed bypass flap device 6, there is thus an almost 100% flow through the filter element 4, while this percentage, with an increasing opening degree of the bypass flap device 6, can be lowered to near 0%.

[0025] In the drawn case, the bypass flap device 6 has a pivotable flap 7 which is pivotably mounted for example about an axis 8 running perpendicularly to the sheet plane. Alternatively, a sliding flap is also conceivable. The filter element 4 that can be arranged in the filter slot 3 is replaceable, as a result of which only the used-up filter element 4 but not the entire bypass filter element module 1 need be replaced during a regular maintenance.

[0026] According to FIGS. 2 to 6, a modular filter system 9 according to the invention is shown, which is assembled from a building kit for such a filter system 9. This building kit has for example a housing 10 with a first insertion slot 11 and a second insertion slot 12. According to FIGS. 2 and 3, the housing 10 of the modular filter system 9 is merely drawn in the region of the first insertion slot 11. In addition, the building kit according to the invention has at least one filter element 13, which can be optionally inserted into the first insertion slot 11 or the second insertion slot 12 or further insertion slots which are not drawn. A closure element 14 can likewise be provided, which, with insertion slots 11, 12 arranged next to one another in the flow direction 5, can close one of the insertion slots 11, 12 by insertion. Further, the building kit includes at least one combined bypass filter element 1 which can likewise be inserted into one of the insertion slots 11, 12 (see in particular FIGS. 2, 4 and 5).

[0027] Here it is obviously clear that the second insertion slot 12 is fixedly provided in the housing 10 and the first insertion slot 11 can be optionally equipped with the bypass filter module. Thus, the first insertion slot 11 can also remain blank.

[0028] By way of the building kit according to the invention it is thus possible to produce a wide variety of filter systems 9 in a comparatively flexible manner to suit requirements without elaborate changes of the housing 10 being necessary for this purpose.

[0029] Viewing the first and second insertion slot 11, 12 according to FIGS. 5 and 6 it is noticeable that these are formed different in size, as a result of which suitable filter elements 13, closure elements 14 or combined bypass filter element modules 1 each have to be kept in stock and incorrect installation can thereby be reliably excluded. In the embodiment of the modular filter system 9 according to the invention, produced from the building kit, the housing 10 comprises identically sized insertion slots 11, 12 located in the flow direction 5 one after the other. By way of different-sized insertion slots 11, 12 and associated different-sized filter elements 13, closure elements 14 or bypass filter element modules 1, an installation can be significantly simplified since there is a positive connection between the respective components 1, 13, 14 and the respective associated insertion slot 11, 12.

[0030] Viewing the modular filter system 9 according to FIGS. 4 to 6 it is evident that the first insertion slot 11 and the second insertion slot 12 are arranged one after the other in the flow direction 5. In addition, the housing 10 according to FIGS. 5 and 6 has a fresh air inlet 15 and a circulating air inlet 16, wherein in the region of the fresh air inlet 15 a fresh air flap device 17 and in the region of the circulating air inlet 16 a circulating air flap device 18 are arranged. The fresh air flap device 17 is arranged upstream of the first insertion slot 11 and of the second insertion slot 12, while the circulating air flap device 18 is merely arranged upstream of the second insertion slot 12. Through different positions of the fresh air flap device 15, the circulating air flap device 18 and the bypass flap device 6 of the bypass filter element module 1, a wide variety of flow variants, in particular also a one or two-stage filtration, can be made possible. When for example the fresh air flap device 15 is closed, there is a flow through the housing 10 of the modular filter system 9 in the circulating air mode, namely via the circulating air inlet 16 and the filter element 13 arranged in the second insertion slot 12. If a pure fresh air operation is desired, the circulating air flap device 18 can be closed and the fresh air flap device 15 opened, wherein the bypass flap device 6 with a single-stage filtration is at least partially opened and with a two-stage filtration closed, so that there is initially a flow through the filter element 4 in the first insertion slot 11 and subsequently of the filter element 13 in the second insertion slot 12. Obviously, a wide variety of mixed operating modes are also conceivable.

[0031] With the building kit according to the invention and the bypass filter element module 1 according to the invention contained therein, a wide variety of filter systems 9 can be extremely flexibly adapted to suit a wide variety of requirements. Purely theoretically it is even conceivable that instead of the bypass flap device 6 a closure element (not shown) that can be inserted in the bypass filter element module 1 is provided there.

[0032] A wide variety of filter systems 9 can be easily constructed with the building kit, in particular using a housing 10 that is always the same, wherein a use without bypass flap device 6 is also conceivable (see FIG. 6), so that in this case an activation and a mechanism or actuators for the bypass flap device 6 can be omitted. By variously dividing the surface between bypass flap device 6 and filter slot 3, further finally-stepped distinctions and thus further different bypass filter element modules 1 can be additionally created. The filter system 9 according to the invention can be employed for example in an air-conditioning system 19 of a motor vehicle which is not described in more detail.