Electronic unit for a mains filter

Abstract

The present invention relates to an electronics unit (10) for a mains filter, comprising a capacitor unit (12) and a contacting element (14), wherein the capacitor unit (12) has a first winding element (16) and a second winding element (18), wherein the first winding element (16) and the second winding element (18) are arranged in a predetermined pattern relative to one another in order to at least partially form a feedthrough filter, wherein the contacting element (14) can be arranged on a busbar element (20), wherein the contacting element (14) is designed to form a signal- and / or energy-conducting connection between the busbar element (20) and the first winding element (16).

Description

State of the art

[0001] The present invention relates to an electronic unit for a line filter, a method for producing an electronic unit and a vehicle.

[0002] There are currently a multitude of different solutions for damping on-board electrical systems. Due to increasing power density and increased quality requirements in the field of on-board electrical systems, the need for innovative and robust shielding and damping systems is continuously growing.

[0003] The constant weight reduction in vehicle construction to reduce fuel consumption as well as increasing competition are creating cost pressure, so that cheaper and more efficient components for vehicles are in greater demand. Disclosure of the invention

[0004] The electronic unit according to the invention for a network filter with the features of claim 1 has the advantage that increased attenuation can be provided for an unshielded vehicle electrical system, and in particular the number of components required for this purpose and their costs can be significantly reduced. In particular, a large number of components can be eliminated compared to existing systems, and cooling of the busbar element can be provided. Further preferably, a guiding effect or fixation for the busbar element can be provided in order to achieve increased mechanical stability.

[0005] This is achieved according to the invention in that the electronics unit for a mains filter has a capacitor unit and a contacting element, wherein the capacitor unit has a first winding element and a second winding element, wherein the first winding element and the second winding element are arranged in a predetermined pattern relative to one another in order to at least partially form a feedthrough filter, wherein the contacting element can be arranged on a busbar element, wherein the contacting element is designed to form a signal- and / or energy-conducting connection between the busbar element and the first winding element.

[0006] In other words, a feedthrough capacitor or the like can be pushed onto a busbar, such as a busbar, and this can be connected to the contacting element. In particular, the first winding element can be designed to match the second winding element in such a way that both comprise a plurality of layers or windings, which are arranged, for example, in a predetermined pattern. The predetermined pattern can in particular be a pattern which, for example, has a round and / or square cross-section or the like. In particular, starting from the busbar element, first a layer of the first winding element can be arranged and subsequently a layer of the second winding element can be arranged over the layer of the first winding element, so that a layering is created between the first winding element and the second winding element.More preferably, a Cy capacitance with low self-inductance can be provided, thus achieving attenuation of up to 1 GHz or in a 100 MHz range. The attenuation performance of the electronic unit can be up to 30 dB or more.

[0007] The subclaims show preferred developments of the invention.

[0008] Preferably, the contacting element has a first section and a second section, wherein the first section is integrally connected to the capacitor unit, wherein the second section is connectable to the busbar element.

[0009] An advantage of this embodiment is that the capacitor unit with the first and second winding elements can be pushed onto the busbar, and then the contacting element can be pushed onto the busbar, thus first forming a material-to-material connection with the capacitor unit and then forming a material-to-material connection with the busbar. This allows, in particular, manufacturing costs and flexibility to be increased. The material-to-material connection can, in particular, be a connection by means of laser beam welding or the like. More preferably, the contacting element can also be caulked, spring-loaded, and / or screwed.

[0010] Preferably, the first winding element comprises a first plurality of first layers arranged at a predetermined distance from one another, wherein the capacitor unit comprises a first connecting element which connects the plurality of first layers to one another.

[0011] An advantage of this embodiment is that alignment of the plurality of first layers relative to one another as well as signal and / or energy transmission can be provided by means of the first connecting element. For example, the plurality of first layers of the first winding element can correspond to a plurality of windings, in particular in a range between 1 and 200 turns. The thickness of the first winding element can be between 3 and 600 µm. Preferably, all of the plurality of first layers are connected to the first connecting element.

[0012] Further preferably, the first section is connectable to the first connecting element.

[0013] An advantage of this embodiment is that the conductivity between the first plurality of first layers and the contacting element can be improved. For example, the first connecting element can be sintered onto an edge region of the first plurality of first layers, thus achieving a high degree of material bond between the first plurality of layers and the first connecting element. Furthermore, the first connecting element can be welded to the contacting element, so that, in particular, the overall resistance of this connection can be reduced.

[0014] Further preferably, the second winding element comprises a second plurality of layers, wherein the first plurality of first layers are arranged at a predetermined distance from the second plurality of second layers, wherein the second plurality of second layers are arranged on a second connecting element which is connectable to a housing of the electronics unit in order to provide a damping effect.

[0015] An advantage of this embodiment is that the second plurality of second layers can be adapted depending on the first plurality of first layers, in particular based on the predetermined distance as well as the number of windings and / or the material selection. In particular, the damping effect can be provided when the second plurality of second layers is connected to the housing of the electronics unit.

[0016] Further preferably, the housing can be arranged at a fastening point by means of a screw connection in order to form a guide for the busbar element by means of the electronics unit.

[0017] An advantage of this embodiment is that, in addition to the damping effect provided by the electronic unit, a mechanical guide can also be provided in order to further increase the stability of the busbar.

[0018] Further preferably, the screw connection has at least one heat conducting means in order to dissipate heat generated on the busbar element at the fastening point.

[0019] An advantage of this embodiment is that heat generated at the busbar element can be dissipated through conduction between the busbar element and the fastening element, since the heat-conducting medium, such as thermal paste, enables or improves conduction. A heat-conducting element can preferably be applied between different screw connections. Further preferably, the heat-conducting element can be arranged next to the screw connection by means of clamping, caulking, laser welding, or similar means.

[0020] Further preferably, a transverse extension direction of the busbar element is arranged orthogonally and / or parallel to a screwing direction of the screw connection.

[0021] An advantage of this design is that the electronics unit can be better adapted to the available installation space.

[0022] A further aspect of the invention relates to a method for producing an electronic unit as described above and below, comprising the steps: - Providing a busbar element, - Applying a capacitor unit to the busbar element, - Connecting the capacitor unit to the busbar element using a contacting element.

[0023] An advantage of this embodiment is that thermal stress caused by laser welding or similar only acts on the electronic unit when it is in the predetermined position or installation orientation.

[0024] A further aspect of the invention relates to a vehicle having an electronic unit as described above and below and / or an electronic unit manufactured by means of the method as described above and below. Short description of the drawings

[0025] Embodiments of the invention are described in detail below with reference to the accompanying drawings. In the drawing: Fig. 1 to 3b an electronic unit according to an embodiment, Fig. 4 is a flowchart illustrating steps of the method according to an embodiment, Fig. 5 a vehicle according to an embodiment. Embodiments of the invention

[0026] Preferably, all the same elements, units and / or steps in all figures are provided with the same reference numerals.

[0027] Fig. 1 shows an electronics unit 10 according to one embodiment. The electronics unit 10 for a line filter preferably has a capacitor unit 12 and a contacting element 14. The capacitor unit 12 preferably has a first winding element 16 and a second winding element 18, wherein the first winding element 16 and the second winding element 18 are arranged in a predetermined pattern relative to one another in order to at least partially form a feedthrough filter, wherein the contacting element 14 can be arranged on a busbar element 20, wherein the contacting element 14 is configured to form a signal- and / or energy-conducting connection between the busbar element 20 and the first winding element 16.

[0028] As in the Fig. 1, the capacitor unit 12 can be pushed onto a busbar element 20. In order for the capacitor unit 12 to be connected to the busbar element 20 in a signal- and / or energy-conducting manner, a contacting element 14 can be pushed onto the busbar element 20, and a material-to-material connection can then be formed between the busbar element 20, the contacting element 14, and the capacitor unit 12. The contacting element 14 preferably has a first section 22, which is material-to-material connected to the capacitor unit 12, and a second section 24, which is material-to-material connected to the busbar element 20.

[0029] Further preferably, the first winding element 16 has a first plurality of first layers 26, which are connected to a first connecting element 28 of the capacitor unit 12. Preferably, the second winding element 18 has a second plurality of second layers 30, which are connected to one another by means of a second connecting element 32. Preferably, the first connecting element 28 can be connected to the first section 22 and the second connecting element 32 can be connected to the housing 34. Thus, in particular, high-frequency interference, originating from the busbar element 20, can be provided via the contacting element 14 through the capacitor unit 12 to the housing 34. Further preferably, the housing 34 can be fastened at a fastening point 36 by means of a screw connection, in order thus to form in particular a guide for the busbar element 20.Further preferably, a heat-conducting means can be provided for the screw connection, so that heat generated at the busbar element 20 can be dissipated to the fastening point 36. Further preferably, in particular, a transverse extension direction 38 of the busbar element 20 can be arranged orthogonally and / or parallel to a screwing direction 40 of the screw connection.

[0030] Fig. 2a shows an electronic unit 10 according to an embodiment. Fig. 2a shows a first section through a capacitor unit 12. As in the Fig. As can be seen in Figure 2a, the transverse extension direction 38 of the busbar element 20 is arranged substantially orthogonal to the screwing direction 40. Furthermore, the first winding element 16 can have a plurality of first layers 26.

[0031] Fig. Figure 2b shows an electronic unit 10 according to an embodiment. As shown in Fig. As can be seen in Figure 2b, in particular, a transverse extension direction 38 of the busbar element 20 can be aligned substantially orthogonally to the screwing direction 40. In this case, the winding element 18 can in particular have a second plurality of second layers 30.

[0032] Fig. 3a shows an electronic unit 10 according to an embodiment. As in the Fig. As shown in Figure 3a, a transverse extension direction 38 of the busbar element 20 is arranged substantially parallel to the screwing direction 40. Preferably, the first winding element 16 can have a first plurality of first layers 26.

[0033] Fig. 3b shows an embodiment of the electronics unit 10. The electronics unit 10 preferably has a busbar element 20. Preferably, a transverse extension direction 38 of the busbar element 20 is arranged substantially parallel to the screwing direction 40. Preferably, the second winding element 18 can have a second plurality of second layers 30.

[0034] Fig. Figure 4 shows a flowchart illustrating steps of the method 100 according to one embodiment. The method 100 for manufacturing an electronic unit 10, as described above and below, preferably comprises the following steps: - Providing S1 of a busbar element 20, - Applying S2 a capacitor unit 12 to the busbar element 20, - Connecting S3 the capacitor unit 12 to the busbar element 20 by means of a contacting element 14. More preferably, the method 100 further comprises the step of connecting the capacitor unit to the housing.

[0035] Fig. 5 shows an embodiment of the vehicle 200. The vehicle 200 preferably has an electronic unit 10, as described above and below, and / or an electronic unit 10 which was manufactured by means of the method 100, as described above and below.

Claims

[1] Electronic unit (10) for a mains filter, comprising: - a capacitor unit (12), - a contacting element (14), wherein the capacitor unit (12) comprises a first winding element (16) and a second winding element (18), wherein the first winding element (16) and the second winding element (18) are arranged in a predetermined pattern relative to one another to at least partially form a feedthrough filter, wherein the contacting element (14) can be arranged on a busbar element (20), wherein the contacting element (14) is designed to form a signal- and / or energy-conducting connection between the busbar element (20) and the first winding element (16). [2] Electronic unit (10) according to claim 1, wherein the contacting element (14) has a first section (22) and a second section (24), wherein the first section (22) is integrally connected to the capacitor unit (12), wherein the second section (24) is connectable to the busbar element (20). [3] Electronic unit (10) according to one of the preceding claims, wherein the first winding element (16) comprises a first plurality of first layers (26) which are arranged at a predetermined distance from one another, wherein the capacitor unit (12) comprises a first connecting element (28) which connects the first plurality of first layers (26) to one another. [4] Electronic unit (10) according to one of claims 2 and 3, wherein the first portion (22) is connectable to the first connecting element (28). [5] Electronic unit (10) according to one of claims 3 to 4, wherein the second winding element (18) has a second plurality of second layers (30), wherein the first plurality of first layers (26) is arranged at a predetermined distance from the second plurality of second layers (30), wherein the second plurality of second layers (30) is arranged on a second connecting element (32) which is connectable to a housing (34) of the electronic unit (10) in order to provide a damping effect. [6] Electronic unit (10) according to claim 5, wherein the housing (34) can be arranged by means of a screw connection at a fastening point (36) in order to form a guide for the busbar element (20) by means of the electronic unit (10). [7] Electronic unit (10) according to claim 6, wherein the screw connection has at least one heat conducting means for dissipating heat generated on the busbar element (20) to the fastening point (36). [8] Electronic unit (10) according to one of claims 6 to 7, wherein a cross-sectional direction (38) of the busbar element (20) is arranged orthogonally or parallel to a screwing direction (40) of the screw connection. [9] Method (100) for producing an electronic unit (10) according to one of the preceding claims, comprising the steps: - providing (S1) a busbar element (20), - applying (S2) a capacitor unit (12) to the busbar element (20), - Connecting (S3) the capacitor unit (12) to the busbar element (20) by means of a contacting element (14) [10] Vehicle (200) comprising an electronic unit (10) according to one of claims 1 to 8 and / or an electronic unit (10) which was manufactured by means of the method according to claim 9.

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