Hybrid choke, method for producing such hybrid choke, use of current measuring sensor element and use of rib-shaped inner element

Abstract

The invention relates to a hybrid choke device for filtering common-mode and / or differential-mode interference currents, comprising an electromagnetically conducting base body, said hybrid choke device having a sensor element for measuring currents.

Description

Technical Field

[0001] The present invention relates to a hybrid choke device for filtering common-mode and / or differential-mode interference currents, the hybrid choke device having an electromagnetically conductive substrate.

[0002] The present invention also relates to a method for producing a hybrid choke device for filtering common-mode and / or differential-mode interference currents.

[0003] The present invention also relates to current measurement sensor elements, particularly Hall sensors, for use in measuring current.

[0004] The present invention also relates to the use of ribbed internal elements within annular external elements of a mixing choke device, particularly between the two long sides of the annular external elements. Background Technology

[0005] Chokes are used in a variety of electronic and / or electrical applications, preferably for limiting current in wires, for storing energy in the form of a magnetic field, for impedance matching, and / or for filtering electronic and / or electrical signals.

[0006] When using an anti-interference choke, DC and low-frequency currents should be unaffected or only slightly affected by the choke, while high-frequency AC currents should be effectively reduced by utilizing the impedance of the choke.

[0007] Typically, the connecting wires in a DC power grid each have forward and reverse conductors. Interference currents occurring in these conductors can be categorized into common-mode interference currents and differential-mode interference currents. Common-mode interference currents are the interference currents on the connecting wires between electrical components or elements, and they occur in the same direction on both the forward and reverse conductors. Conversely, differential-mode interference currents propagate in opposite directions on the connecting wires.

[0008] When equipped with the corresponding characteristics, anti-interference chokes can also be used in AC power grids (especially two-phase and / or three-phase AC power grids), where the AC frequency of the power grid should be unaffected or only slightly affected by the choke, and the high-frequency AC current should be effectively reduced by utilizing the impedance of the choke.

[0009] In other words, the anti-interference choke has transmission characteristics comparable to a low-pass filter.

[0010] This type of hybrid choke device is known in the prior art, for example from DE 10 2017 214857 A1, which describes a toroidal core assembly having an improved magnetic coupling between a toroidal core and ribs arranged in an opening.

[0011] Especially for mobile applications and / or other applications sensitive to installation space and cost, it is desirable to design the required functionality in a way that is as space-saving, cost-effective, and robust as possible. Additionally, good filtering of high-frequency interference currents, a relatively constant temperature range, and good adaptability to the specific application scenario are also expected. Summary of the Invention

[0012] The purpose of this invention is to propose an improvement or alternative to the existing technology.

[0013] The objective of this invention is achieved by a hybrid choke device for filtering common-mode and / or differential-mode interference currents, the hybrid choke device having an electromagnetically conductive substrate, wherein the hybrid choke device has a sensor element for current measurement.

[0014] According to the present invention, the hybrid choke has a sensor element for current measurement, which is operatively connected to the electromagnetic conduction substrate of the hybrid choke, thereby allowing the sensor element to measure the electromagnetic current flowing in the hybrid choke. This makes it possible to eliminate the need for an externally attached current measuring device, thus enabling functional integration and saving installation space and weight, especially since it is not necessary to rely on a separate magnetic field sensitive element with a current measuring device to measure the current.

[0015] The hybrid choke device proposed in this paper can perform current measurement in addition to its own anti-interference function, thus eliminating the need for structurally separate or additional current measurement devices.

[0016] Current measurement using a hybrid choke can benefit from the fact that the electromagnetic conduction substrate forms two magnetic circuits due to its geometry. These can be achieved, in particular, by electrical and / or magnetic short circuits formed by the electromagnetic conduction substrate, which can be achieved through the interaction of an annular outer element and a ribbed inner element.

[0017] Electrical measuring devices, or sensor elements used for current measurement in this sense, can be implemented in different ways.

[0018] The hybrid choke device according to the invention can effectively suppress or filter common-mode and differential-mode interference currents. This eliminates the need for separate components, preferably designed as choke coils, for both types of interference currents. This optimizes the installation space, weight, and cost of the electrical system.

[0019] Preferably, the electromagnetic conductive substrate is contained within the housing.

[0020] A housing is a component that isolates an electromagnetically conductive substrate from its environment, at least electrically and / or electronically, and / or at least mechanically protects the electromagnetically conductive substrate from specified external loads. Furthermore, the housing can be designed to allow the housed elements, particularly annular external elements and / or ribbed internal elements, to be arranged relative to each other. In other words, the housing can influence the relative positions of the annular external elements and / or ribbed internal elements. Additionally, sensor elements can also be housed within the housing, thereby protecting them from any externally applied loads. The relative arrangement of the sensor elements with the electromagnetically conductive substrate can also be determined by the housing.

[0021] The housing may be made of plastic, particularly thermoplastic and / or thermosetting plastic, or have such material.

[0022] Advantageously, the housing can be produced from thermoplastic and / or thermosetting plastics in injection molding and / or thermoforming and / or PUR-RIM and / or other plastic manufacturing processes.

[0023] The housing may at least partially surround, and in particular completely surround, the electromagnetic conductive substrate.

[0024] Preferably, the housing has a temperature resistance of 120°C or higher, more preferably 150°C or higher, and particularly preferably 180°C or higher.

[0025] It should be understood that the housing has through-holes corresponding to designated electrical conductor elements, thereby allowing the electrical conductor elements to be guided through the mixing choke device.

[0026] Preferably, the housing can be designed as a shielded electromagnetic conductive substrate to protect it from the influence of external magnetic fields. For this purpose, the housing may have a shielding section.

[0027] Alternatively, or as a variant, the electromagnetic conduction substrate may be at least partially surrounded by a shield.

[0028] The shielding portion can preferably extend within the region of the sensor element and protect it from the influence of external magnetic fields. This can improve the measurement accuracy of the sensor element.

[0029] Furthermore, it should be considered that the shield is designed in such a way that its interaction relationship is symmetrical about the magnetic field generated by the electrical conductor element. In particular, it is designed so that the shield is adapted to further reduce any measurement error of the sensor element, and because of its interaction with the magnetic field generated by the electrical conductor element, no measurement error is increased due to any asymmetry.

[0030] For the shielding section, a suitable shielding structure is conceivable, which has circumferential gaps, particularly annular gaps, in the direction of each opening in the conductive substrate. This allows the shielding section to shield the magnetic field generated by the specified conductive element as little as possible, and to shield as completely as possible any active magnetic field not originating from the specified conductive element, thereby enabling more accurate current measurements.

[0031] In particular, it should be considered that the housing and / or shielding are adapted to shield the sensor element used for current measurement as well as possible from any externally acting magnetic field. For this purpose, the sensor element used for current measurement can be surrounded as completely as possible by the housing and / or shielding.

[0032] In this case, it proved particularly advantageous that the sensor element had a Hall sensor.

[0033] Advantageously, Hall effect sensors provide signals even when the magnetic field is constant. This is its advantage over simple coils as magnetic field sensors.

[0034] The Hall sensor can be structurally integrated particularly well into the substrate of the hybrid choke device in this case.

[0035] Alternatively or additionally, one should consider a sensor element having a coil that is wound at least in sections around an electromagnetically conductive substrate and connected to the current acting in the electromagnetically conductive substrate in this way.

[0036] If the sensor elements are arranged on the substrate, a hybrid choke can be implemented in a particularly compact design.

[0037] When the sensor element is arranged within the substrate, it can not only be integrated into the hybrid choke device of this invention without occupying additional mounting space outside the substrate, but also measure particularly effectively.

[0038] "Arranged within the substrate" here means that at least the area of ​​the sensor element that is in kinetic connection with the electromagnetic conductive substrate is contained within a recess in the electromagnetic conductive substrate, particularly the portion in which the Hall sensor is in kinetic connection.

[0039] Furthermore, the proposed hybrid choke device can be particularly advantageously realized if the substrate includes an annular external element having a through opening for passing through at least one electrical conductor element, preferably for passing through two and / or three electrical conductor elements, wherein the external element is designed to be elliptical or circular.

[0040] The annular external element can be specifically optimized for suppressing or eliminating common-mode interference current. Elimination is preferably achieved through the superposition of common-mode interference currents in the magnetic flux. Since the guiding wires typically wrap around the annular external element in opposite regions, or pass through a penetration in the electromagnetic conduction substrate, the common-mode interference current generates magnetic flux in the annular external element in each case; these magnetic fluxes can be superimposed, thus canceling each other out. Therefore, the common-mode interference current is filtered by a hybrid choke.

[0041] In this case, if the external component is made of a soft magnetic material, it is advantageous to implement the external component.

[0042] "Soft magnetic material" is understood as a substance that can be easily magnetized in a magnetic field. Preferably, the soft magnetic material has a coercive field strength of less than or equal to 1000 A / m.

[0043] Preferably, the soft magnetic material, especially the amorphous soft magnetic material, preferably the metallic glass, has an alloy containing iron, nickel and / or cobalt.

[0044] "Metallic glass" is understood as a metal-based alloy that does not have a crystalline structure at the atomic level, but rather an amorphous structure, yet possesses metallic electrical conductivity. Preferably, metallic glass contains non-metallic alloy components in addition to metallic alloy components.

[0045] The amorphous atomic arrangement, which is very unusual for metals, advantageously enables special physical properties. In particular, by using metallic glasses, it is advantageous to reduce the coercive field strength of magnetic field-sensitive elements and / or advantageously increase the magnetic permeability.

[0046] Preferably, the soft magnetic material has the following atomic composition:

[0047] Among them, a 0.3, 0.6 x 1.5, 10 y 17.5 z 14,2 6, ß 7, 8, where M' is at least one of the elements V, Cr, Co, Al and Zn, and M" is at least one of the elements C, Ge, P, Ga, Sb, In and Be.

[0048] More preferably, the soft magnetic material may have 73.5% by weight iron and / or 1% by weight copper and / or 3% by weight niobium and / or 13.5% by weight silicon and / or 9% by weight boron. Suitably, the soft magnetic material may have 74.5% by weight iron and copper, wherein the copper content is less than or equal to 1% by weight.

[0049] The annular outer element can be formed by winding a strip around its perimeter. Here, the strip thickness can be at least 5µm, particularly at least 10µm, preferably at least 15µm, and / or at most 200µm, particularly at most 100µm, preferably at most 25µm. Particularly preferably, the strip thickness is 20µm.

[0050] Specifically, the total number of winding turns may be at least 100, particularly at least 250, preferably at least 400, and / or at most 1500, particularly at most 1000, preferably at most 600. Particularly preferably, the annular outer element comprises 500 turns.

[0051] It is particularly advantageous that the external element has a relative permeability of 1000 or more, preferably 5000 or more, especially preferably 10000 or more, and even more preferably 20000 or more.

[0052] In particular, the suggested values ​​for the relative permeability of external components mentioned above can better compensate for high-frequency common-mode interference currents induced on the load side or grid side.

[0053] A relative permeability greater than or equal to 30,000, preferably greater than or equal to 45,000 and greater than or equal to 60,000, and especially preferably greater than or equal to 75,000 is also advantageous.

[0054] Furthermore, it is advantageous that the external element has a relative permeability of less than or equal to 150,000, preferably less than or equal to 100,000, particularly preferably less than or equal to 90,000, and even more particularly preferably less than or equal to 75,000.

[0055] The permeability is preferably measured in a magnetic field oscillating at 50 Hz.

[0056] "Magnetic permeability" is a measure of a material's magnetization in an external magnetic field. In this context, it is clear that the higher the magnetic permeability of a magnetic field sensing element, especially the electromagnetically conductive substrate, the greater the ratio of the magnetic flux density within the sensing element to the magnetic field strength acting on it. Therefore, a magnetic field sensing element with high magnetic permeability results in a relatively high magnetic flux density even under low magnetic field strengths.

[0057] Using the aforementioned relative permeability values, the specified magnetization of the annular external element can be influenced within a favorable range.

[0058] Advantageously, the annular external element can have a magnetic saturation flux density greater than or equal to 1T, preferably greater than or equal to 1.2T, and particularly preferably greater than or equal to 1.4T. Thus, in the case where the hybrid choke is used as an inductive element, the annular external element can remain saturated even under relatively large interference currents.

[0059] "Saturation magnetic flux density" is an indicator that measures the maximum degree to which a material can be magnetized under the influence of an applied magnetic field. Initially, the magnetic flux density increases continuously with increasing magnetic field strength. From a certain point onward, this effect weakens significantly, so that further increases in magnetic field strength only result in a slight increase in the magnetic flux density within the material. The magnetic flux density at which this planarization phenomenon occurs is called the saturation magnetic flux density.

[0060] Advantageously, the annular external element can have a coercive field strength of less than or equal to 10 A / m, preferably less than or equal to 5 A / m, and particularly preferably less than or equal to 3 A / m. This reduces the heat loss generated by the alternating magnetic field in the annular external element. In this way, while keeping the common-mode interference current constant, the size of the annular external element can be further reduced, thereby further increasing the power density of the hybrid choke.

[0061] In one advantageous embodiment, it is also advantageous that the relative permeability of the outer element is greater than or equal to 1.1 times, particularly greater than or equal to 10 times, preferably greater than or equal to 100 times, and especially preferably greater than or equal to 1000 times, of the relative permeability of the ribbed inner element arranged in the annular outer element.

[0062] With this implementation variant, it can respond particularly quickly to high-frequency alternating current, thereby enabling further improved compensation for disturbance currents induced on the load side and / or grid side.

[0063] If the external component has a soft magnetic material, metallic glass, or preferably a nanocrystalline structure, the external component of this invention can be advantageously realized.

[0064] In this context, if the substrate includes ribbed internal elements arranged in through openings of annularly surrounding external elements of the substrate, particularly if these internal elements are adapted as current measuring devices, the hybrid choke device in the sense of the present invention can be advantageously designed.

[0065] If the internal components are current measuring devices with hybrid chokes, the current measuring device can be implemented very simply and compactly.

[0066] In this case, if the internal element of the substrate is a soft magnetic element, especially an element made of ferrite material or similar material, then the internal element can be advantageously provided.

[0067] The ribbed internal elements are primarily used to suppress differential-mode interference current. Therefore, ribbed magnetic field sensing elements preferably have significantly lower permeability than ring-shaped magnetic field sensing elements, but significantly higher coercive field strength.

[0068] In this regard, it is advantageous that the internal element has a relative permeability of 10 or greater, preferably 50 or greater, particularly preferably 100 or greater, and even more particularly preferably 300 or greater, and / or has a relative permeability of 5000 or less, preferably 3500 or less, particularly preferably 2000 or less, and even more particularly preferably 1500 or less.

[0069] Suitably, the ribbed internal element may have a relative permeability greater than or equal to 500, preferably greater than or equal to 1000, more preferably greater than or equal to 1500, and particularly preferably greater than or equal to 2000. More preferably, the ribbed internal element may have a relative permeability greater than or equal to 10000, preferably greater than or equal to 15000, and particularly preferably greater than or equal to 20000.

[0070] Preferably, the ribbed internal element may have a relative permeability of less than or equal to 1000, more preferably less than or equal to 500, further preferably less than or equal to 300, and particularly preferably less than or equal to 100.

[0071] The ribbed internal element may have a coercive field strength greater than or equal to 12 A / m, preferably greater than or equal to 120 A / m, and particularly preferably greater than or equal to 1200 A / m.

[0072] Internal components can be manufactured in different ways.

[0073] If the internal components are sintered, making it possible to have almost any geometry of the internal components, the internal components can be provided structurally simply.

[0074] This makes it particularly easy to implement the internal components as a current measuring device, especially since the geometry of the internal components can be ideally adapted to the specified current measuring device.

[0075] If the internal components have a receiving space for accommodating the sensor components, the sensor components can be advantageously integrated into the internal components.

[0076] Preferably, the internal element has an elliptical notch. This allows for the harmonious magnetization of the internal element with a specified magnetic flux.

[0077] If the receiving space for accommodating the sensor element is symmetrically arranged within the internal element, particularly mirror-symmetrical and / or point-symmetrical with respect to the longitudinal extension axis of the internal element, a specified magnetic flux can be used to magnetize the internal element in a particularly harmonious manner. This advantageously allows the internal element to be symmetrically loaded with the specified magnetic flux. Arranging the notch at half a distance in the longitudinal direction of the internal element also advantageously facilitates applying the specified symmetrical load to the internal element. Tests have shown that, by applying a symmetrical load to the internal element, particularly accurate current measurement can be achieved using a sensor element at least partially inserted into the notch.

[0078] When the depth extension and lateral extension of the housing space are arranged perpendicular to the longitudinal axis of the internal components, current measurement can be made more efficient and / or more efficient.

[0079] With such a housing space, the base surface of the sensor element can be reliably arranged laterally relative to the longitudinal axis of the internal element, thereby advantageously interacting with the specified dominant magnetic flux within the internal element. This enables efficient and accurate current measurement of current in current hybrid choke devices, particularly with the aid of Hall sensors.

[0080] Advantageously, the housing has a channel through which sensor elements can be inserted into or removed from internal components.

[0081] Such a channel allows for the modification of mass-produced hybrid choke devices, for example, by subsequently adding different sensor elements.

[0082] Furthermore, defective sensor components can be replaced via the channel without discarding the entire hybrid choke and replacing it with a new hybrid choke.

[0083] If the internal components divide the through opening into two parts to realize a two-phase mixing choke, then it is possible to easily realize a mixing choke with different operating modes in terms of structure.

[0084] To achieve a three-phase operating hybrid choke, it is advantageous to divide the through opening of the hybrid choke into three parts.

[0085] Therefore, for this alternative hybrid choke device, it is advantageous that the internal components have a Y-shaped structure.

[0086] In this process, internal elements with a Y-shaped structure can also be called ribbed internal elements, because the implementation of ribbed internal elements can be easily transferred to Y-shaped internal elements.

[0087] Preferably, the Y-shaped internal element can be designed to be mirror symmetrical. More preferably, the Y-shaped internal element can have three ribs of equal length, wherein each rib can have the same cross-section and / or a cross-section with the same area.

[0088] Preferably, the Y-shaped internal element is designed such that three equally sized partial openings are created in the electromagnetically conductive substrate.

[0089] Preferably, the Y-shaped internal element may have a plurality of sensor elements for current measurement. Specifically, the Y-shaped internal element may have exactly three sensor elements for current measurement, wherein each sensor element is arranged at and / or within one of the three ribs, particularly within each different rib. This allows for differentiated assessment of the current in each rib of the Y-shaped internal element using the plurality of sensor elements for current measurement, thereby enabling current measurement of each of the conductor elements specifically arranged in the partial opening.

[0090] If the internal and external components are arranged spaced apart from each other, with a gap (especially an air gap) on the head side of the internal component relative to the external component, the permeability of the hybrid choke, especially with respect to the internal component, can be predetermined or set in a way that better meets the user's needs and is therefore more personalized.

[0091] The head side refers to each side of the ribbed internal element, which, in a specified arrangement of the ribbed internal element, is arranged within the annular external element and corresponds to the inner surface of the annular external element.

[0092] In this case, the gap should be understood as the distance between the rib-shaped inner element and the annular outer element. This gap can be filled with ambient air or by a different medium, particularly a solid that acts as a spacer element inside the annular outer element, maintaining its distance from the rib-shaped inner element. In this way, the magnetic permeability of the gap can be adjusted; specifically, the gap can have the magnetic permeability of air and / or the magnetic permeability of the spacer element. In this case, materials with lower magnetic permeability compared to the rib-shaped inner element and / or the annular outer element, particularly air, are primarily considered.

[0093] Preferably, the gap may contain magnetic powder, particularly magnetic powder dispersed in plastic or other suitable materials.

[0094] In this way, the effective permeability of the magnetic short circuit of the annular external element caused by the internal element can be varied and / or adjusted to suit the individual specified operating conditions of the hybrid choke device presented herein. This allows for filtering and adjustment of common-mode and / or differential-mode interference currents, among other things.

[0095] It should be understood that the hybrid choke device proposed herein may also have gaps between the ribbed inner element and the annular outer element at all head sides of the inner element on both sides of the ribbed inner element and / or within the annular outer element, particularly at two or three or more head sides. It should also be considered that different media and / or materials may be filled in the corresponding gaps.

[0096] Advantageously, the gaps can be filled with a solid that holds the ribbed inner element within the annular outer element, particularly with a cured adhesive.

[0097] This objective is further achieved by a method for producing a hybrid choke for filtering common-mode and / or differential-mode interference currents, wherein a current measuring device is arranged within an annular outer element of the hybrid choke, particularly between the two long sides of the annular outer element.

[0098] The method described in this case allows current measuring devices to be integrated into conventional hybrid chokes without increasing the installation space of the hybrid choke, or at least by a negligible amount, such as by adding at most the contact elements or contact wire elements of the current measuring device.

[0099] It is particularly advantageous to arrange the current measuring device in operative connection with a magnetically sensitive ribbed internal element, especially by arranging a sensor element for current measurement, particularly a Hall sensor, at or within the ribbed internal element.

[0100] A hybrid choke with a magnetic field-sensitive substrate, specifically featuring an annular external element and a ribbed internal element, has been shown to be capable of filtering interfering currents.

[0101] In this case, it doesn't matter whether the internal components are designed as ribbed I-shapes or ribbed Y-shapes.

[0102] It should also be noted that the method can be further improved by other technical features described herein, particularly by features of the hybrid choke device, in order to more advantageously improve the method or to more precisely demonstrate or express the method specification.

[0103] The object of the invention is also achieved by means of a current measuring sensor element, particularly a Hall sensor, for measuring current at a hybrid choke to filter common-mode and / or differential-mode interference currents.

[0104] This allows the functionality of the hybrid choke to be advantageously supplemented by the function of the current measuring device.

[0105] Therefore, traditional hybrid choke devices can be significantly improved in this way.

[0106] The object of the invention is also achieved by using the ribbed internal element within the annular external element of the hybrid choke device, particularly between the two long sides of the annular external element, as a current measuring device.

[0107] This allows for further improvements to the functionality of traditional ribbed internal components in a structurally very simple manner.

[0108] It should be understood that the features of the solutions described in the foregoing or claims can also be combined in order to achieve the advantages and effects achievable by the present invention in a corresponding cumulative manner.

[0109] It should also be noted that, in the context of this patent application, indefinite articles and indefinite number indications, such as “one…”, “two…”, etc., should generally be understood as minimal indications, i.e., “at least one…”, “at least two…”, etc., unless, for example, it can be clearly seen from the context or the specific text of a particular paragraph, in which case it only means “exactly one…”, “exactly two…”, etc.

[0110] Furthermore, it should be noted that in the context of this patent application, the expression "specifically" is always understood to mean that the expression introduces optional, preferred features. This expression should not be construed as "exactly" or "that is." Attached Figure Description

[0111] Further advantages, details and features of the present invention can be obtained from the embodiments described below.

[0112] In the various figures, components that are at least substantially identical in function may be labeled using the same reference numerals in this case, where these components need not be labeled and described in all figures.

[0113] In the attached diagram: Figure 1 A schematic view of a hybrid choke device according to a first possible embodiment is shown; Figure 2 A view schematically illustrating yet another hybrid choke device of a second possible embodiment; Figure 3 A view schematically illustrating another hybrid choke device of a third possible implementation; and Figure 4 A view of an alternative mixing choke device in a fourth possible implementation is shown schematically. Detailed Implementation

[0114] Figure 1 The hybrid choke device 1 shown has an electromagnetic conduction substrate 2 made of soft magnetic material.

[0115] The base 2 may be enclosed by an additional shell, but such a shell is not provided here, or at least not explicitly shown.

[0116] The hybrid choke device 1 can filter both the common-mode interference current and the differential-mode interference current.

[0117] In this case, the substrate 2 has a longitudinal central axis 4 that extends along the longitudinal extension of the mixing choke device 1, wherein the longitudinal extension represents the long side of the mixing choke device 1.

[0118] The base 2 also has a transverse central axis 6 that extends along a transverse extension of the mixing choke 1, wherein the transverse extension represents the short side of the mixing choke 1.

[0119] Furthermore, the substrate 2 is characterized by an annular external element 8, which is made of a first soft magnetic material.

[0120] More precisely, the annular outer element 8 is designed to be substantially elliptical.

[0121] The annular outer element 8 defines a through opening 10 within its inner region (not separately numbered), wherein the ribbed inner element 12 is arranged at the center of the transverse central axis 6.

[0122] Therefore, the through opening 10 of the mixing choke device 1 is divided into two parts, openings 10A and 10B.

[0123] In each of the two partial openings 10A and 10B, an electrical conductor element 14 (illustrated designation only) is arranged, which is capable of carrying current.

[0124] The ribbed internal element 12 is made of a second soft magnetic material, particularly sintered.

[0125] The ribbed inner element 12 is further designed as an I-shape and extends from the first straight portion 8A of the annular outer element 8 to the second straight portion 8B of the annular outer element 8.

[0126] In this case, the two straight portions 8A and 8B of the annular outer element 8 are spaced apart from the two curved portions 8C and 8D of the annular outer element 8.

[0127] The rib-shaped internal element 12 has two head sides 12A and 12B and a longitudinal extension 12C.

[0128] An air gap (not shown here) may be arranged between the head sides 12A and 12B of the ribbed inner element 12 and the corresponding straight portion 8A or 8B directly opposite the annular outer element 8, by means of which the magnetic permeability of the mixing choke device 1 may be additionally affected.

[0129] In this first embodiment, a sensor element 16 for current measurement is arranged on the base 2 of the hybrid choke device 1, particularly on the annular outer element 8 of the hybrid choke device 1.

[0130] This allows for immediate current measurement using the hybrid choke device 1, specifically, which is connected to the annular external element 8.

[0131] Figure 2 The second embodiment shown in the schematic diagram is basically the same as the first embodiment; therefore, only the differences will be explained below to avoid repetition. For the same structure and the same function, please refer to the preceding description.

[0132] However, as Figure 2 Another hybrid choke device 100 shown takes a different configuration in terms of sensor element 16, that is, sensor element 16 is arranged here at the rib-shaped internal element 12.

[0133] Therefore, current can be measured by means of interaction with the ribbed internal element 12.

[0134] Therefore, the ribbed internal element 12 is also a current measuring device 18.

[0135] Figure 3 The third embodiment shown in the schematic diagram is basically the same as the first and second embodiments. To avoid repetition, only the differences will be explained below. Furthermore, for the same structure and the same function, please refer to the preceding description.

[0136] Figure 3 The other hybrid choke device 200 shown again adopts a different configuration in terms of the sensor element 16; specifically, the sensor element 16 is arranged here within the rib-shaped internal element 12.

[0137] Therefore, the ribbed internal element 12 is also a current measuring device 18.

[0138] In this third embodiment, the sensor element 16 is specifically designed as a Hall sensor 16A, wherein this Hall sensor 16A can also be used Figure 1 and Figure 2 The example shown.

[0139] In this case, the sensor element 16 is arranged within the rib-shaped internal element 12, more specifically, such that the base surface 16B of the sensor element 16 or the Hall sensor 16A is arranged laterally relative to the longitudinal extension 12C of the rib-shaped internal element 12. This allows for a particularly advantageous operative connection between the sensor element 16 or the Hall sensor 16A and the rib-shaped internal element, thereby enabling particularly accurate current measurement.

[0140] In this regard, the ribbed internal element 12 of the other hybrid choke device 200 has a receiving space 22 for accommodating the sensor element 16 or the Hall sensor 16A.

[0141] The accommodating space 22 is orthogonally arranged with respect to its depth extension 22B and lateral extension 22A relative to the longitudinal extension 12C of the internal element 12.

[0142] Such a receiving space 22 may also be provided in other embodiments.

[0143] according to Figure 4 In the alternative embodiment shown in the schematic diagram, the mixing choke 300 has an external element 8 designed to be circular, rather than like... Figures 1 to 3 As shown in the embodiment, it has an annular outer element 8 designed as an ellipse. Furthermore, the ribbed inner element 12 of the mixing choke 300 has a Y-shaped structure instead of an I-shaped structure (see...). Figures 1 to 3 The through opening 10 of the outer element 8, which is designed to be circular, is divided into a total of three openings 10A, 10B and 10C.

[0144] Therefore, this hybrid choke is an alternative hybrid choke 300 that can be specified for three-phase operation.

[0145] In the alternative hybrid choke device 300, a sensor element 16 in the form of a Hall sensor 16A is also arranged in the rib-shaped internal element 12.

[0146] In this regard, it should be clearly pointed out that, if necessary, features of the solutions described above and / or in the claims and / or figures can be combined in order to achieve, or realize, the explained features, effects and advantages accordingly.

[0147] List of reference numerals

[0148] 1. Mixing choke device

[0149] 2. Matrix

[0150] 4. Longitudinal centerline

[0151] 6. Horizontal central axis

[0152] 8. Ring-shaped external components

[0153] 8A First straight section

[0154] 8B Second straight section

[0155] 8C First Bending Section

[0156] 8D Second Curve Section

[0157] 10 Through-opening

[0158] 10A First part opening

[0159] 10B Part Two Opening

[0160] 10C Third Part Opening

[0161] 12 Rib-shaped internal components

[0162] 12A First head side view

[0163] 12B Second head side

[0164] 12C Longitudinal Extension

[0165] 14 Electrical conductor elements

[0166] 16 Sensor elements for current measurement

[0167] 16A Hall Sensor

[0168] 16B base plane

[0169] 18 Current measuring device

[0170] 22. Capacity

[0171] 22A Lateral Extension

[0172] 22B Deep Extension Section

[0173] 100 Another mixing choke device

[0174] 200 Another mixing choke device

[0175] 300 Optional mixing choke device.

Claims

1. A hybrid choke device (1) for filtering common-mode and / or differential-mode interference currents, the hybrid choke device having an electromagnetically conductive substrate (2), characterized in that, The hybrid choke device (1) has a sensor element (16) for current measurement.

2. The mixing choke device (1) according to claim 1, characterized in that, The sensor element (16) has a Hall sensor (16A).

3. The hybrid choke device (1) according to claim 1 or 2, characterized in that, The sensor element (16) is arranged on the substrate (2).

4. The mixing choke device (1) according to any one of claims 1 to 3, characterized in that, The sensor element (16) is arranged within the substrate (2).

5. The mixing choke device (1) according to any one of claims 1 to 4, characterized in that, The substrate (2) includes an annular outer element (8) having a through opening (10) for passing through at least one electrical conductor element (14), wherein the outer element (8) is designed to be elliptical or circular.

6. The mixing choke device (1) according to claim 5, characterized in that, The external element (8) has a relative permeability greater than or equal to 1000, preferably greater than or equal to 5000, and particularly preferably greater than or equal to 10000.

7. The mixing choke device (1) according to claim 5 or 6, characterized in that, The relative permeability of the external element (8) is greater than or equal to 1.1 times, particularly greater than or equal to 10 times, preferably greater than or equal to 100 times, and particularly preferably greater than or equal to 1000 times, of the relative permeability of the ribbed internal element (12) arranged in the annular external element (8).

8. The mixing choke device (1) according to any one of claims 1 to 7, characterized in that, The substrate (2) includes a ribbed internal element (12) arranged in a through opening of an annular surrounding external element (8) of the substrate (2), and in particular, the internal element (12) is adapted to be a current measuring device (18).

9. The mixing choke device (1) according to claim 7 or 8, characterized in that, The internal element (12) has a relative permeability greater than or equal to 10, preferably greater than or equal to 50, particularly preferably greater than or equal to 100, and / or has a relative permeability less than or equal to 5000, preferably less than or equal to 3500, particularly preferably less than or equal to 2000.

10. The mixing choke device (1) according to any one of claims 7 to 9, characterized in that, The internal components (12) are sintered.

11. The mixing choke device (1) according to any one of claims 1 to 10, characterized in that, The internal component (12) has a receiving space (22) for receiving the sensor component (16).

12. The mixing choke device (1) according to claim 11, characterized in that, The depth extension and lateral extension (22B, 22A) of the accommodating space (22) are arranged perpendicularly to the longitudinal extension (12C) of the internal element (12).

13. The mixing choke device (1) according to any one of claims 7 to 12, characterized in that, The internal element (12) divides the through opening (10) into two partial openings (10A, 10B) to realize a two-phase mixing choke device (1).

14. The mixing choke device (1) according to any one of claims 7 to 13, characterized in that, The internal element (12) has a Y-shaped structure.

15. The mixing choke device (1) according to any one of claims 7 to 14, characterized in that, The internal element (12) and the external element (8) are arranged spaced apart from each other, wherein a gap, particularly an air gap, is arranged on the head side (12A, 12B) of the internal element (12) relative to the external element (8).

16. A method for producing a hybrid choke device (1) for filtering common-mode and / or differential-mode interference currents, particularly a hybrid choke device according to any one of the preceding claims, wherein a current measuring device (18) is arranged within an annular external element (8) of the hybrid choke device, particularly between the two long sides of the annular external element.

17. The method according to claim 16, characterized in that, The current measuring device (18) is arranged to be operatively connected to a magnetically sensitive ribbed internal element (12), particularly by arranging a sensor element (16) for current measurement, especially a Hall sensor, at or within the ribbed internal element (12).

18. Current measuring sensor element (16), particularly Hall sensor (16A), for measuring current at a hybrid choke (1) to filter common-mode and / or differential-mode interference currents.

19. The ribbed internal element (12) is located within the annular external element (8) of the mixing choke device (1), particularly between the two long sides of the annular external element, for the purpose of current measurement as a current measuring device (18).

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