Electronic unit

Abstract

The present invention relates to an electronic unit (10) having a choke unit (12) which has a first choke element (14) and a second choke element (16), wherein the choke unit (12) is designed to form a common-mode choke, wherein the electronic unit (10) has a first printed circuit board unit (18) and a second printed circuit board unit (20), wherein the choke unit (12) is designed to form a signal-conducting and / or energy-conducting connection to the first printed circuit board unit (18), wherein the second printed circuit board unit (20) has at least one cut-out (22), wherein the choke unit (12) projects through the cut-out (22) in order to space the first choke element (14) and the second choke element (16) apart from the first printed circuit board unit (18) and from the second printed circuit board unit (20).

Description

[0001] Description

[0002] title

[0003] Electronics unit

[0004] State of the art

[0005] The present invention relates to an electronic unit and a vehicle.

[0006] There are currently a variety of different solutions for mounting choke units, especially common-mode chokes, in the electronics sector. Due to increasing installation space density and increased quality requirements, the demand for innovative and robust electronic units is continuously growing.

[0007] The constant weight reduction in the vehicle sector to reduce fuel consumption as well as increasing competition is causing cost pressure, so that cheaper and more efficient components for vehicles are in greater demand

[0008] Disclosure of the invention

[0009] The electronic unit according to the invention with the features of claim 1 has the advantage over the known ones that the installation space required for the choke unit in the electronic unit can be significantly reduced by spacing the choke unit from a printed circuit board. Further preferably, the thermal load on the choke unit can be reduced by spacing the choke unit from the printed circuit board units and connecting the choke unit to a cooling channel. Integration of the shielding for AC filtering is advantageous so that various thermal and electrical requirements can be met. Further preferably, the separate design of the choke unit in the electronic unit enables a variety of assembly concepts. In particular, the design of different circuit board levels can be omitted or, depending on the arrangement of the choke unit, can be integrated into various potting steps or filling with insulating material.Further preferably, the choke unit can be potted in a separate housing and subsequently installed in a charger or the like. Further preferably, a potting material can be modified without having to change the basic structure of the printed circuit board units. Further preferably, the installation space can be better utilized, thus further improving the power density of an electronic component, such as a charger.

[0010] This is achieved according to the invention in that the electronics unit has a choke unit which has a first choke element and a second choke element, wherein the choke unit is designed to form a common-mode choke, wherein the electronics unit has a first printed circuit board unit and a second printed circuit board unit, wherein the choke unit is designed to form a signal- and / or energy-conducting connection with the first printed circuit board unit, wherein the second printed circuit board unit has at least one recess, wherein the choke unit projects through the recess in order to space the first choke element and the second choke element from the first printed circuit board unit and from the second printed circuit board unit.

[0011] In other words, direct contact between the choke elements and the printed circuit board unit is not necessary, since the choke unit, which can in particular be designed as a separate component, separates the function of the common-mode choke from the printed circuit board units. In particular, two electrically shielded common-mode chokes can thus be designed as a common module, which allows decoupling from the printed circuit board unit and flexible accommodation in the power electronics, in which the module can be brought closer to the cooling geometry. Preferably, two doubly arranged chokes can be designed as a separate module, which can be integrated into a charger or the like having a modular design, in order to thus achieve an installation position independent of a filter circuit board.In particular, this allows more efficient use of installation space in the device and increases the capacity of the chokes to ensure better filter properties. In particular, decoupling the chokes from the circuit board unit enables flexible installation in the device and also allows the respective chokes to be brought closer to a cooling area of ​​the charger or the like. Further preferably, the electrical shielding of the chokes from one another can be achieved by a sheet metal construction or the like in order to reduce the assembly steps on the circuit board. In particular, this allows the weight of the circuit board unit to be reduced because the chokes are no longer arranged directly on the respective circuit board. Further preferably, the chokes can be arranged flexibly in the device in order to enable different connection options to be configured, in particular by means of potting steps.

[0012] The subclaims show preferred developments of the invention.

[0013] Preferably, the choke unit comprises a first contact element and a second contact element, wherein the first contact element is arranged between the first printed circuit board unit and the first choke element in order to form at least part of the signal and / or energy-conducting connection, wherein the second contact element is arranged between the first printed circuit board unit and the second choke element in order to form at least part of the signal and / or energy-conducting connection.

[0014] An advantage of this embodiment is that one choke unit can be used for a variety of different electronic devices, and only the contact elements need to be adapted accordingly. Further preferably, the contact elements can be connected to the printed circuit board unit, in particular, via a through-hole contact. Further preferably, a contact element can have a plurality of wires or the like.

[0015] The throttle unit preferably has a mounting element configured to connect the first throttle element, the second throttle element, the first contact element, and / or the second contact element to simplify mounting the throttle unit on the electronics unit. An advantage of this embodiment is that the mounting element, which may be a plastic housing or the like, defines the position of the first throttle element and the second throttle element or the contact elements, thereby simplifying, in particular, the insertion of the throttle unit into the electronics unit or the like.

[0016] Further preferably, the electronic unit has a cooling structure and / or can be arranged on a cooling structure, wherein the throttle unit is designed to dissipate thermal energy generated at the throttle unit to the cooling structure.

[0017] An advantage of this design is that thermal stress on the circuit board unit can be significantly reduced, thus further improving the longevity of the electronic unit.

[0018] Preferably, the throttle unit, in particular the first throttle element or the second throttle element, is connected to the cooling structure by means of an insulating material in order to improve heat transfer between the throttle unit and the cooling structure.

[0019] An advantage of this embodiment is that the heat transfer between the electronics unit or throttle unit and the cooling structure can be improved by simple means, such as overmolding or injection-molding insulating material onto the first throttle element and / or the second throttle element and / or the throttle unit. This can, in particular, involve a potting step in which appropriate material can be applied to the first throttle element and / or the second throttle element.

[0020] Preferably, the electronics unit comprises a shielding unit, wherein the shielding unit is configured to shield the first throttle element, the second throttle element and / or at least part of the signal and / or energy-conducting connection from one another.

[0021] An advantage of this embodiment is that interference within the

[0022] The shielding unit can be further reduced within the choke unit and / or within the electronics unit, thus further improving the filtering effect of the electronics unit. The shielding unit can be formed, in particular, by a sheet metal construction or similar.

[0023] Further preferably, the shielding unit protrudes through the recess of the second circuit board unit and extends to and / or through the first circuit board unit.

[0024] An advantage of this embodiment is that the shielding unit can in particular reduce interference between the first choke element or the second choke element and the second circuit board unit.

[0025] Preferably, the electronics unit has a shielding element which is arranged between the first circuit board unit and the second circuit board unit, wherein the shielding element has a second recess through which the shielding unit protrudes.

[0026] An advantage of this embodiment is that a continuous shielding effect can be created by the interaction of the shielding element and the shielding unit, in particular from the first and / or second choke element to the second circuit board unit.

[0027] Further preferably, the electronic unit comprises a housing element, wherein the throttle unit is arranged at least partially in the housing element, wherein the shielding unit is configured to secure the throttle unit in the housing element.

[0028] An advantage of this embodiment is that the shielding unit can be easily secured to the housing element, such as by means of a screw connection or the like, in order to thus secure or fix the shielding unit, in particular in relation to the first printed circuit board unit.

[0029] A further aspect of the invention relates to a vehicle having an electronic unit as described above and below.

[0030] Brief Description of the Drawings Embodiments of the invention are described in detail below with reference to the accompanying drawings. In the drawing:

[0031] Figures 1 to 2b show an electronic unit according to an embodiment,

[0032] Figure 3 shows a vehicle according to an embodiment.

[0033] Embodiments of the invention

[0034] Preferably, all the same elements, units and / or steps in all figures are provided with the same reference numerals.

[0035] Figure 1 shows an electronics unit 10 according to one embodiment. The electronics unit 10 has a choke unit 12 which has a first choke element 14 and a second choke element 16, wherein the choke unit 12 is configured to form a common-mode choke, wherein the electronics unit 10 has a first printed circuit board unit 18 and a second printed circuit board unit 20, wherein the choke unit 12 is configured to form a signal- and / or energy-conducting connection with the first printed circuit board unit 18, wherein the second printed circuit board unit 20 has at least one recess 22, wherein the choke unit 12 protrudes through the recess 22 in order to space the first choke element 14 and the second choke element 16 from the first printed circuit board unit 18 and from the second printed circuit board unit 20.

[0036] As shown in Figure 1, the first throttle element 14 is contacted to the first printed circuit board unit 18 by means of a first contact element 24. More preferably, the second throttle element 16 is contacted to the first printed circuit board unit 18 by means of a second contact element 26. The throttle unit 12 can preferably have a holding element 28, which in particular positions the first throttle element 14, the second throttle element 16 and in particular the first contact element 24 and the second contact element 26 relative to one another and in particular forms a plastic housing or the like. More preferably, the electronics unit 10 can be arranged on a cooling structure 30, as shown in Figure 1. More preferably, an insulating material 32 can be arranged in particular between the housing element 40 and the first throttle element 14 or the second throttle element 16 in order to be able to improve heat transfer.The electronics unit 10 preferably has a shielding unit 34, which in particular shields the first throttle element 14 from the second throttle element 16. Further preferably, the shielding unit 34, as shown in Figure 1, can extend through the recess 22 of the second circuit board unit 20 and extend to and / or through the first circuit board unit 18. Further preferably, a shielding element 36, which has a second recess 38, can be arranged between the first circuit board unit 18 and the second circuit board unit 20. The shielding unit 34 can preferably protrude through the second recess 38.

[0037] Figure 2a shows an electronics unit 10 according to one embodiment. The electronics unit 10 has a throttle unit 12, which protrudes through the second printed circuit board unit 20 and is attached to the first printed circuit board unit 18. As can be seen in Figure 2a, the electronics unit 10 has a cooling structure 30. As shown in Figure 2a, the first throttle element 14 and the second throttle element 16 are potted directly to a housing of the electronics unit 10, or an insulating material 32 is arranged between the two components and the housing. This enables heat transfer between the throttle unit 12 and the cooling structure 30.

[0038] Figure 2b shows an electronics unit 10 according to one embodiment. The electronics unit 10 has a similar configuration as already described with reference to Figure 2a. As can be seen in Figure 2b, the electronics unit 10 has a housing element 40, wherein an insulating material 32 is arranged between the first throttle element 14 and the second throttle element 16 and in the housing element 40. Thus, the heat transfer between the throttle unit 12 and the cooling structure 30 can be improved, and the mountability can be increased by the housing element 40.

[0039] Figure 3 shows a vehicle 100 according to one embodiment. The vehicle 100 has an electronics unit 10, as described above and below.

Claims

Claims 1 . An electronics unit (10) comprising: a choke unit (12) having a first choke element (14) and a second choke element (16), wherein the choke unit (12) is configured to form a common-mode choke, wherein the electronics unit (10) has a first printed circuit board unit (18) and a second printed circuit board unit (20), wherein the choke unit (12) is configured to form a signal- and / or energy-conducting connection with the first printed circuit board unit (18), wherein the second printed circuit board unit (20) has at least one recess (22), wherein the choke unit (12) projects through the recess (22) in order to space the first choke element (14) and the second choke element (16) from the first printed circuit board unit (18) and from the second printed circuit board unit (20).

2. Electronic unit (10) according to claim 1, wherein the choke unit (12) has a first contact element (24) and a second contact element (26), wherein the first contact element (24) is arranged between the first printed circuit board unit (18) and the first choke element (14) in order to form at least part of the signal and / or energy-conducting connection, wherein the second contact element (26) is arranged between the first printed circuit board unit (18) and the second choke element (16) in order to form at least part of the signal and / or energy-conducting connection.

3. Electronic unit (10) according to claim 2, wherein the throttle unit (12) has a mounting element (28) which is configured to connect the first throttle element (14), the second throttle element (16), the first contact element (24) and / or the second contact element (26) in order to simplify mounting of the throttle unit (12) on the electronic unit (10).

4. Electronic unit (10) according to one of the preceding claims, wherein the electronic unit (10) has a cooling structure (30) and / or can be arranged on a cooling structure (30), wherein the throttle unit (12) is designed to dissipate thermal energy generated at the throttle unit (12) to the cooling structure (30).

5. Electronic unit (10) according to claim 4, wherein the throttle unit (12), in particular the first throttle element (14) or the second throttle element (16), is connected to the cooling structure (30) by means of an insulating material (32) in order to improve heat transfer between the throttle unit (12) and the cooling structure (30).

6. Electronic unit (10) according to one of the preceding claims, wherein the electronic unit (10) has a shielding unit (34), wherein the shielding unit (34) is configured to shield the first throttle element (14), the second throttle element (16) and / or at least part of the signal and / or energy-conducting connection from one another.

7. Electronic unit (10) according to claim 6, wherein the shielding unit (34) protrudes through the recess (32) of the second circuit board unit (20) and extends to and / or through the first circuit board unit (18).

8. Electronic unit (10) according to one of claims 6 to 7, wherein the electronic unit (10) has a shielding element (36) which is arranged between the first printed circuit board unit (18) and the second printed circuit board unit (20), wherein the shielding element (36) has a second recess (38) through which the shielding unit (34) protrudes.

9. Electronic unit (10) according to one of claims 6 to 8, wherein the electronic unit (10) has a housing element (40), wherein the throttle unit (12) is arranged at least partially in the housing element (40), wherein the shielding unit (34) is adapted to secure the throttle unit (12) in the housing element (40).

10. Vehicle (100) comprising an electronic unit (10) according to one of the preceding claims.

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