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DE-102024132665-A1 - Filter assembly for use in a filtration system

DE102024132665A1DE 102024132665 A1DE102024132665 A1DE 102024132665A1DE-102024132665-A1

Abstract

The invention relates to a filter arrangement (10) for use in a filtration device (100), comprising a first filter insert (12a) which has a filter medium (20a) and at least one electrically conductive polarizing electrode (16a, 18a) for polarizing the filter medium (20a), and a second filter insert (12b) which has a filter medium (20b) and at least one electrically conductive polarizing electrode (16b, 18b) for polarizing the filter medium (20b).

Inventors

  • Andreas Borchard
  • Georgius Paroglu

Assignees

  • HENGST SE

Dates

Publication Date
20260513
Application Date
20241108

Claims (20)

  1. Filter arrangement (10) for use in a filtration device (100), comprising - a first filter element (12a) comprising a filter medium (20a) and at least one electrically conductive polarizing electrode (16a, 18a) for polarizing the filter medium (20a), and - a second filter element (12b) comprising a filter medium (20b) and at least one electrically conductive polarizing electrode (16b, 18b) for polarizing the filter medium (20b), characterized by at least one contacting element (22, 22a, 22b) via which the polarizing electrode (16a, 18a) of the first filter element (12a) and the polarizing electrode (16b, 18b) of the second filter element (12b) are electrically connected to each other.
  2. Filter arrangement (10) according to Claim 1 , characterized in that - the first filter element (12a) has a first and a second electrically conductive polarizing electrode (16a, 18a) for polarizing the filter medium (20a); and - the second filter element (12b) has a first and a second electrically conductive polarizing electrode (16b, 18b) for polarizing the filter medium (20b), wherein the first polarizing electrode (16a) of the first filter element (12a) and the first polarizing electrode (16b) of the second filter element (12b) are electrically connected to each other via the at least one contact element (22, 22a, 22b); and/or wherein the second polarizing electrode (18a) of the first filter element (12a) and the second polarizing electrode (18b) of the second filter element (12b) are electrically connected to each other via the at least one contact element (22, 22a, 22b).
  3. Filter arrangement (10) according Claim 2 , characterized in that the at least one contacting element (22, 22a, 22b) is configured to apply a potential difference between the first and the second polarizing electrode (16a, 18a) of the first filter element (12a) to the first and the to transfer to the second polarization electrode (16b, 18b) of the second filter insert (12b).
  4. Filter arrangement (10) according to one of the preceding claims, characterized in that - the first filter insert (12a) has a connection contact area (26a) which is electrically conductively connected to the contact element (22, 22a, 22b); and/or - the second filter insert (12b) has a connection contact area (26b) which is electrically conductively connected to the contact element (22, 22a, 22b).
  5. Filter arrangement (10) according to one of the preceding claims, characterized in that the first filter insert (12a) has a connection contact area (24) via which the first filter insert (12a) can be electrically connected to an electrical supply device (108).
  6. Filter arrangement (10) according Claim 4 and 5 , characterized in that the connection contact area (24) and the connection contact area (26a) of the first filter insert (12a) are arranged on different sides of the first filter insert (12a).
  7. Filter arrangement (10) according to one of the preceding claims, characterized in that the connection contact area (24) is supported by a connecting element, wherein the connecting element is preferably designed as a connecting foil.
  8. Filter arrangement (10) according to one of the preceding claims, characterized in that the contacting element (22, 22a, 22b) is designed as a component of the first filter insert (12a) or as a component of the second filter insert (12b).
  9. Filter arrangement (10) according to one of the preceding claims, characterized in that the contacting element (22, 22a, 22b) is designed as a contact foil.
  10. Filter arrangement (10) according to one of the preceding claims, characterized in that the contacting element (22, 22a, 22b) has a carrier layer on which one or more electrically conductive conductor tracks are located.
  11. Filter arrangement (10) according to one of the preceding claims, characterized in that the contacting element (22, 22a, 22b) is materially bonded to the first filter insert (12a) and/or to the second filter insert (12b).
  12. Filter arrangement (10) according to one of the preceding claims, characterized in that the contacting element (22, 22a, 22b) - has a first contacting section which extends along the first filter insert (12a); and - has a second contacting section which extends along the second filter insert (12b).
  13. Filter arrangement (10) according to one of the preceding claims, characterized in that the first and the second filter insert are arranged next to each other or one above the other.
  14. Filter arrangement (10) according to one of the Claims 2 until 13 , characterized in that - the first electrically conductive polarizing electrode (16a) and the second electrically conductive polarizing electrode (18a) of the first filter element (12a) are electrically connected to each other via an electrical diagnostic resistor (32); and/or - the first electrically conductive polarizing electrode (16b) and the second electrically conductive polarizing electrode (18b) of the second filter element (12b) are electrically connected to each other via an electrical diagnostic resistor (32).
  15. Filter arrangement (10) according to Claim 14 , characterized in that the diagnostic resistor (32) is formed as a component of the first filter element (12a); or as a component of the second filter element (12b); or is formed separately from the first and second filter elements (12a, 12b).
  16. Filter arrangement (10) according to one of the Claims 2 until 15 , characterized in that the first polarization electrode (16a, 16b) and the second polarization electrode (18a, 18b) are each designed as a polarization layer and the polarization electrodes (16a, 16b, 18a, 18b) designed as polarization layers are separated from each other by the filter medium (20a, 20b) designed as a filter layer.
  17. Filter arrangement (10) according to one of the preceding claims, characterized in that the first filter insert (12a) and/or the second filter insert (12b) comprises a conductor arrangement comprising a voltage divider (40).
  18. Filter arrangement (10) according to one of the preceding claims, characterized in that the first filter element (12a) and/or the The second filter insert (12b) comprises three connection contact points (44a-44c) via which the first filter insert (12a) and/or the second filter insert (12b) can be electrically connected to the counter-contact points of the insert receptacle (102) of the filtration device (100).
  19. Filtration device (100), comprising - a filter arrangement (10) comprising two filter inserts (12a, 12b), and - an insert receptacle (102, 102a, 102b) for receiving the two filter inserts (12a, 12b) of the filter arrangement (10); characterized in that the filter arrangement (10) is designed according to one of the preceding claims.
  20. Filtration unit (100) according to Claim 19 , characterized in that the insert receptacle (102, 102a, 102b) is formed by a housing, wherein the contacting element (22, 22a, 22b) of the filter arrangement (10) is fixed to the housing.

Description

The invention relates to a filter arrangement for use in a filtration device, comprising a first filter insert which has a filter medium and at least one electrically conductive polarizing electrode for polarizing the filter medium, and a second filter insert which has a filter medium and at least one electrically conductive polarizing electrode for polarizing the filter medium. Furthermore, the invention relates to a filtration device with a filter arrangement comprising two filter inserts and an insert holder for receiving the two filter inserts of the filter arrangement. Furthermore, the invention relates to a method for preparing a filtration device for operation, comprising the steps of: inserting a first filter insert of a filter arrangement, comprising a filter medium and at least one electrically conductive polarizing electrode for polarizing the filter medium, into an insert receptacle of the filtration device, and inserting a second filter insert of the filter arrangement, comprising a filter medium and at least one electrically conductive polarizing electrode for polarizing the filter medium, into the insert receptacle of the filtration device. Furthermore, the invention relates to a method for testing a filtration device with a filter arrangement comprising two electrically contacted filter inserts, comprising the step of evaluating a current flow at a measuring point of an electrically conductive conductor path of the filtration device by means of an evaluation device. In many applications, filter assemblies consist of several filter elements forming a filter system. Filter assemblies with multiple filter elements are used, for example, when the available installation space is limited but a comparatively high filtration performance is still required. The available installation space for implementing the filter function is becoming smaller in many application areas due to the increasing prioritization of other assemblies, or it is being divided into several installation space areas. Since filter elements typically need to be replaced after their service life, the available openings for inserting and removing the filter elements may also necessitate the use of a multi-part filter assembly. In electrified filter elements, such as those with a polarization function, the multiple filter elements of the filter assembly must be electrically connected. The electrical contacting of such filter elements has so far been a complex and costly process. The object underlying the invention is therefore to reduce the effort required for the electrical contacting of a filter arrangement with multiple filter inserts. The problem is solved by a filter arrangement of the type mentioned above, wherein the filter arrangement according to the invention has at least one contacting element via which the polarizing electrode of the first filter insert and the polarizing electrode of the second filter insert are electrically connected to each other. Because the polarization electrodes of the first and second filter elements are electrically connected via the contactor, only one of the filter elements needs to be connected to the electrical supply of the filtration unit. This results in internal contact between the polarization electrodes of both filter elements within the filter assembly. The effort required for the electrical connection of the filter assembly is thus significantly reduced. The filter medium is preferably a dielectric filter medium. The contacting element can be one-piece or multi-piece. The filter arrangement can also comprise more than two filter elements, wherein the polarizing electrodes of the filter elements are electrically connected to one or more contacting elements. The filter arrangement can, for example, also comprise three, four, five, or more than five filter elements. The filter arrangement according to the invention is advantageously further developed in that the first filter element has a first and a second electrically conductive polarizing electrode for polarizing the filter medium. Furthermore, the second filter element has a first and a second electrically conductive polarizing electrode for polarizing the filter medium. The first polarizing electrode of the first filter element and the first polarizing electrode of the second filter element are electrically connected to each other via the at least one contact element. Alternatively or additionally, the second polarizing electrode of the first filter element and the second polarizing electrode of the second filter element are electrically connected to each other via the at least one contact element. The first polarizing electrode of the first filter element and the first polarizing electrode of the second filter element can be electrically connected to each other via a first contact element, and the second polarizing electrode of the first filter element and the second polarizing electrode of the second filter element can be electrica