Induction device, in particular for electric brake, and electric brake

Abstract

The invention relates to an induction device (300), in particular for an electric brake (100), having at least one support element (400) and a plurality of sheet units (416), the plurality of sheet units (416) each having at least one sheet element (410), preferably a plurality of sheet elements (410), and the at least one support element (400) having a plurality of openings (402). One of the sheet units (416) is guided through a respective one of the openings (402) of the at least one support element (400). The invention also relates to an electric brake (100).

Description

Technical Field

[0001] The present invention relates to an induction device, in particular to an induction device for an electric brake, and an electric brake having the induction device. Background Art

[0002] Eddy current brakes are known in the prior art. For example, DE 950 939 B discloses an eddy current brake, in which the pole cores of an inductor are arranged on both sides of an armature movable relative to the inductor, the armature being composed of one or more bodies that form eddy current tracks and conduct electricity well, and components that conduct magnetic flow well and extend through the first one or more bodies, wherein the components that guide the magnetic flow protrude beyond the one or more bodies that form eddy current tracks on both sides, so that the ends of these components form protrusions that improve the cooling of the armature.

[0003] DE 102016108646 B4 discloses an electric brake having a magnetic device for providing a magnetic field, the magnetic device having at least two pole elements and interacting with an induction device. The induction device is arranged in such a way that in a braking mode it is at least partially exposed to a magnetic field provided by the pole elements of the magnetic device and is designed such that a current is induced in it in the variable magnetic field, wherein the pole elements of the induction device and the magnetic device can be moved relative to each other along a predetermined movement path.

[0004] With the last-mentioned electric brake and its material structure consisting of steel pins and perforated sheets, it is already possible to significantly reduce the skin effect in the eddy current brake and thus achieve an improved current distribution. In particular, the surface for cooling the brake can be significantly increased by the positioning sheet that centers the steel pin and in this way the power density can be increased. Summary of the invention

[0005] The object of the present invention is to specify an improved electric brake which has optimized properties and can be produced in a simple and inexpensive manner. In addition, the object of the present invention is to specify an electric brake.

[0006] According to the invention, this object is achieved by an induction device according to the following features and an electric brake according to the other following features. Advantageous embodiments are given in the corresponding associated technical solutions.

[0007] The object is achieved by an induction device, in particular an induction device for an electric brake, wherein the induction device has at least one support element and a plurality of sheet elements. The plurality of sheet elements each have at least one sheet element, preferably a plurality of sheet elements, wherein at least one support element has a plurality of openings. One of the sheet units is guided through a respective one of the openings of the at least one support element or is arranged therein.

[0008] The invention is based on the idea of ​​reducing the total number of components by using sheet metal elements, in particular in comparison with pins, for example, and at the same time increasing the power density within the induction device.

[0009] By reducing the number of parts, the manufacturing time and manufacturing costs can also be reduced, and, for example, the manufacturing tolerances can be relaxed, ie designed more widely.

[0010] Furthermore, the compact arrangement of the lamellae units also results in an improved cooling strategy, in particular an optimized liquid cooling, wherein reduced dead water areas and thus optimized heat removal can be achieved.

[0011] In particular, provision can be made to form the induction device with as many laminar elements as possible. In this way, when using the induction device according to the invention, torque ripples during operation of electric brakes or the like can be reduced.

[0012] The openings are preferably designed perpendicularly to the support element, so that a theoretical central opening axis runs perpendicularly to the surface of the support element. Ideally, the openings are all designed identically or substantially identically.

[0013] Alternatively, the design of the openings may vary, preferably such that a symmetrical pattern is achieved along the surface of the respective support element.Thus, the sheet units may be configured to correspond to the respective openings.

[0014] In the scope of the present invention, sheet material, in particular sheet material unit or sheet material element is preferably understood as a structure with two relatively long side edges and one relatively short side edge. In particular, the side edge in the thickness direction of the structure can be significantly shorter than the other two side edges, thereby realizing a plate-shaped structure.

[0015] If the induction device has a plurality of support elements arranged one above the other, the openings of the support elements are preferably designed to correspond to one another. It is therefore provided that the sheet metal units each protrude through corresponding openings of a plurality of support elements or are arranged therein.

[0016] The support element is advantageously constructed with an electrically conductive material and has a low magnetic permeability. Here, the support element can ideally have aluminum or copper.

[0017] The sheet elements of the sheet unit can advantageously consist of a material with high magnetic permeability, for example steel, in particular grain-oriented or non-grain-oriented electrical sheet. The steel can be, for example, a specific type of steel or steel with a material number of 1.0718. In this regard, within the scope of the present invention, the sheet unit can be understood as an electrical sheet stack.

[0018] Each of the lamina units can preferably have a plurality of lamina elements. In particular, a plurality of lamina elements of a lamina unit can lie directly against each other.

[0019] The sheet unit is guided through or arranged in a respective one of the openings of the at least one supporting element.

[0020] In the case of using a plurality of support elements, the sheet unit preferably extends through a respective one of the openings of the plurality of support elements. Thus, each of the sheet units is received in all the support elements that are arranged or protrudes through them.

[0021] In this way, a compact and efficient induction device may be provided which also enables a simplified manufacturing process and provides improved power density.

[0022] According to a preferred embodiment, the lamina units are arranged at least substantially perpendicularly, preferably orthogonally, to the support element and / or are arranged angularly offset in or relative to a radial direction of the induction device.

[0023] In particular, the support element can be oriented orthogonally to a central axis of the induction device.

[0024] Therefore, the lamina element is preferably arranged upright in the induction device in such a way that its shortest side edge extends parallel to the at least one supporting element. In this context, the lamina element can be understood to stand upright in the induction device.

[0025] Furthermore, the lamina units or lamina elements can extend in a radial direction or have an angular offset with respect to a radial direction of the induction device.

[0026] Within the scope of the present invention, a radial direction of the induction device may be understood in particular to mean a radius of the induction device relative to a central axis.

[0027] If the lamina element is arranged in the radial direction, it therefore extends in a manner corresponding to the radius of the induction device in the direction from the outer circumference to the central axis / to the center point over the shortest path.

[0028] If the lamina units or lamina elements are to be arranged with an angular offset, the angular offset can be understood as an angular offset relative to the radial direction between the outer circumference and the center axis of the induction device. Within this range, the lamina elements or lamina units can be arranged obliquely inside the induction device.

[0029] According to another embodiment of the invention, the lamina units each have a plurality of lamina elements, in particular each have at least three lamina elements, wherein the lamina elements of the respective lamina unit are designed such that the lamina unit has an at least substantially triangular basic shape.

[0030] In particular, a plurality of pane elements can be combined to form a pane unit in such a way that a triangular, at least substantially triangular basic shape of the pane unit results.

[0031] The sheet elements of the sheet unit can be configured in a stepped manner here in order to achieve a triangular basic geometry. Thus, the middle sheet element or elements have the greatest longitudinal extension. The outer sheet elements of the sheet unit have the shortest longitudinal extension.

[0032] In particular, a tapering of the induction device in the radial direction can be depicted or reflected by means of the triangular basic shape of the lamina units, so that the greatest possible or more optimal packing density of the lamina units can be achieved.

[0033] In a preferred embodiment, the openings of the support element for arranging the sheet elements are configured relative to one another such that gaps are formed between successively arranged sheet elements, wherein the gaps are preferably provided or configured as flow channels for a cooling fluid or coolant.

[0034] In particular, good cooling and flowability can be ensured, so that in the case of large / strong inductions the energy converted into heat can be dissipated.

[0035] In particular, it is provided that a cooling fluid can circulate between the laminar elements within the induction device.

[0036] The cooling fluid may follow a radial flow direction to ensure heat dissipation for cooling the compact lamella units or lamella elements.

[0037] Preferably, a cooling liquid or liquid cooling can be provided as the cooling fluid. Alternatively, air cooling can be used within the scope of the invention.

[0038] According to another preferred embodiment, the wall element at the outer diameter of the induction device can be surrounded by an outer housing, wherein the outer housing has at least one opening for a cooling fluid and the wall element at the outer diameter of the induction device has at least one through-opening for the cooling fluid. A flow channel can be preferably formed at least sectionally in the circumferential direction between the outer housing and the wall element at the outer diameter of the induction device.

[0039] In particular, a cooling fluid can be introduced from the outside via openings in the outer housing and through-openings in the wall element at or in the region of the outer diameter of the induction device into the induction device in order to cool the lamella unit.

[0040] The cooling fluid can flow through the induction device between the sheet elements and between the support elements, preferably in the radial direction. In particular, bidirectional flow in the radial direction can be provided, i.e. the cooling fluid flows in the direction of the inner diameter / outer diameter of the induction device and flows out in the direction of the outer diameter / inner diameter of the induction device.

[0041] Furthermore, provision can preferably be made for a recess or a flow channel to be formed at least sectionally in the circumferential direction between the outer housing and the wall element at / in the region of the outer diameter of the induction device.

[0042] Thus, the coolant or cooling fluid can be distributed in the circumferential direction (at least in sections) and conveyed onwards through the through-openings of the wall element to the lamina units in order to flow in the radial direction along the lamina units and achieve heat removal.

[0043] According to a further embodiment, the wall element at the inner diameter of the induction device has at least one deflection section for deflecting the cooling fluid in a preferred radial direction.

[0044] In this way, the cooling fluid can flow into the induction device in particular in a radial direction, flow towards the inner diameter of the induction device, be deflected at the inner diameter by the wall element, and flow back in a radial direction to the outer diameter of the induction device.

[0045] In particular, a cooling circuit can be formed within the induction device in this way.

[0046] According to a further embodiment, the induction device has a wall element at the inner diameter and / or at the outer diameter.

[0047] In particular, the at least one supporting element and the pane unit can be surrounded by the wall element in such a way that a stable positioning of the component is ensured.

[0048] Furthermore, the radially outer wall element can have openings for the entry of a cooling fluid.

[0049] According to one embodiment, at least one wall element of the induction device has a retaining rib recess, wherein the laminar unit, in particular the individual laminar elements, have retaining rib sections at the outer diameter and / or inner diameter, wherein the retaining rib recess and the retaining rib sections are provided to engage with each other.

[0050] In this way, the sheet unit may be received and fastened between the wall elements, preferably without additional fasteners or the like. The sheet unit and the wall elements may be integrally engageable with each other.

[0051] According to a preferred embodiment, at least some of the lamina elements of the lamina unit bear snugly against the support element.

[0052] This means that, in particular, the outer lamina element of the lamina unit or its outer surface lies in a close contact with one of the opening edges of the opening, so that support can be achieved here. Thus, in the case of a preferably rectangular lamina element and a straight opening edge, the geometry can be in contact with the contact line.

[0053] In the case of a triangular basic shape of the pane units, a plurality of pane units can alternatively rest in a dot-like manner on the support element.

[0054] Preferably, the opening or the opening edge(s) of the opening is configured within the scope of the step edge / step shape so that the opening or the opening edge follows the preferably stepped outer contour of the sheet unit. In this case, the support of the sheet unit can be achieved with the corresponding opening or the opening edge, preferably along a continuous contact line.

[0055] According to one embodiment, at least some of the lamina elements have an electrically insulating material as an adhesive layer or are coated, in particular have a phosphoric acid-containing material as an adhesive layer.

[0056] Therefore, in order to avoid short circuits and to better structure the magnetic field lines, a further improvement can be that at least some of the sheet elements have an electrically insulating material at the outer surface. This can be an adhesive layer, such as a phosphate layer, or another electrically insulating coating or electrically insulating coating, in particular an insulating varnish for electrical sheets (laminates).

[0057] In particular, the pane unit can be provided as a whole with such a coating or covering.

[0058] According to a preferred embodiment, a magnetic circuit element is provided, which is preferably made of a soft magnetic composite or of a ceramic ferrite, in particular an iron-containing magnetic circuit element.

[0059] For the later installation of the induction device with a one-sided magnetic device, an improved embodiment can therefore be to provide a magnetic circuit element which is preferably made of a soft magnetic composite or ceramic ferrite, in particular designed as a ferrous magnetic circuit element.

[0060] The magnetic circuit element can form a closed element and have, for example, the shape of a plate or a ring.

[0061] In particular, the magnetic circuit element may be arranged at the end side of the induction device or the sheet unit. In addition, the magnetic circuit element may be in close contact with the end side of the sheet unit.

[0062] In the mounted state, the magnetic circuit element is preferably arranged on a side of the induction device facing away from the pole or the pole shoe. The magnetic circuit element is preferably designed parallel to the support element.

[0063] In particular, various magnetic circuit variants and / or excitation variants may be provided within the scope of the present invention, as are known, for example, from DE 10 2016 108 646 B4.

[0064] For example, a disk-shaped magnetic circuit element or a helically wound steel strip may be provided to construct the disk-shaped magnetic circuit element.

[0065] Furthermore, the excitation coil or the pole element can be arranged, for example, on one side of the induction device, or on both sides of the induction device by replacing the magnetic circuit element. In this case, the excitation coil or the pole element can be configured only as a north pole, or the pole element can be provided in the form of a permanent magnet instead of being provided as a core coil. In particular, in the case of a pole element arranged on both sides, only a north pole or a south pole can be arranged on one side at the corresponding carrier plate.

[0066] In the context of the invention, the pole elements can in particular be provided as a rotor, wherein the induction device can preferably be provided as a stator.

[0067] According to another embodiment, at least one distance maintaining member is arranged between two adjacently arranged support elements among a plurality of support elements, in particular in the form of a silicone rope, a plastic rope, a silicone ring, a plastic ring, etc., or in the form of an intermediate element with a tangential wavy profile, so that a minimum distance is provided between the two adjacently arranged support elements.

[0068] For this purpose, one or more flexible spacers, for example one or more silicone ropes, can be arranged between two support elements. In particular, a silicone ring or a plastic ring can also be placed around or on the sheet element, and the subsequent support element can lie flat or rest against it. Advantageously, the stacked support elements provide an open structure through which flow can pass.

[0069] Alternatively, an intermediate element or intermediate sheet having a tangentially corrugated profile / shape may be inserted between the support elements in order to provide a spacing or a minimum spacing between the support elements.

[0070] According to a further preferred embodiment, the induction device has at least one cover element, in particular at least one cover plate, which is arranged at an end side of the induction device, wherein the cover element has a lower electrical conductivity than the at least one support element.

[0071] For example, the cover element may comprise a material such as stainless steel or the like.

[0072] Furthermore, the cover element or the cover plate can preferably be arranged in contact with the wall element and / or the lamina unit.

[0073] Preferably, at least one cover element is arranged on the induction device in such a way that the cover element forms a fluid-tight connection with the wall element and / or the pane unit.

[0074] In particular, the cover element can be arranged on a side of the induction device opposite to the magnetic circuit element.

[0075] If pole elements or coils are provided on both sides of the induction device, the induction device can be designed with two cover elements, wherein a respective one of the cover elements is arranged at or in the region of an end face of the induction device to form a preferably fluid-tight arrangement.

[0076] In particular, the at least one cover element can have an opening which corresponds to the opening of the support element, so that the lamina unit protrudes or can protrude through the at least one cover element.

[0077] Preferably, the connection or contact point between the individual pane elements and the at least one pane element can be formed in a fluid-tight manner.

[0078] The cover element preferably has an electrical conductivity which is as low as possible.

[0079] By providing the cover element with a low electrical conductivity, the lamina unit can be protected from additional heat input.

[0080] The invention also includes an electric brake having a magnetic device for providing a magnetic field. The magnetic device preferably has at least one pole element and an induction device according to the invention.

[0081] The inductive device can in a preferred manner be arranged such that it is at least partially exposed to a magnetic field provided via a pole element of the magnetic device in force mode and wherein the inductive device and the pole element of the magnetic device can be moved relative to each other along a predetermined movement trajectory.

[0082] In this way, a highly efficient electric brake is available which can be produced by means of a simplified and cost-effective process. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] Further details and advantages of the invention will now be explained in greater detail with reference to the exemplary embodiment shown in the drawings.

[0084] In the attached picture:

[0085] Figure 1 A perspective view of an embodiment of an electric brake device having an induction device is shown;

[0086] Figure 2 shows a top view of an embodiment of a sensing device;

[0087] Figure 3 shows a top view of another embodiment of a sensing device;

[0088] Figure 4 Shown according to Figure 2 A cross-sectional view of an embodiment of a sensing device;

[0089] Figure 5 shows a detailed view of a sensing device according to an embodiment;

[0090] Figure 6 Shown according to Figure 2 A perspective view of a sheet unit of an embodiment of; and

[0091] Figure 7 A detailed diagram of an embodiment of a sensing device is shown. DETAILED DESCRIPTION

[0092] Figure 1 An embodiment of an electric brake 100 having an induction device 300 is shown.

[0093] The electric brake 100 is arranged on the shaft 106 .

[0094] The shaft 106 or the longitudinal axis of the shaft 106 may be understood as the axis of rotation of the electric brake 100 .

[0095] according to Figure 1 , a plurality of pole elements 102 are arranged on both sides of the induction device 300 .

[0096] The pole elements 102 on each side of the induction device 300 may preferably have alternating polarities.

[0097] Furthermore, the pole elements 102 are each provided with a terminating plate 104 .

[0098] according to Figure 1The sensing device 300 is constructed with a plurality of lamina units 416 , each of which has a plurality of lamina elements 410 .

[0099] The plurality of sheet units 416 are arranged in a radially (uniformly) distributed manner around the rotation axis or the symmetry axis of the electric brake 100 or the induction device 300 .

[0100] In particular, the lamina elements 410 of each lamina unit 416 are arranged directly adjacent to one another.

[0101] Furthermore, the induction device 300 has a cover element 438 .

[0102] The cover element 438 is shown to have an opening through which the sheet unit 416 protrudes.

[0103] The induction device 300 has a wall element 418 at the outer diameter or in the region of the outer diameter.

[0104] The wall element 418 is surrounded by an outer shell 420. Figure 1 , the outer housing may have an opening 422 for a cooling fluid.

[0105] exist Figure 2 A top view of an embodiment of a sensing device 300 is shown in FIG.

[0106] A plurality of sheet elements 416 are shown to be evenly distributed radially along the induction device 300 .

[0107] The lamina elements 416 are oriented in a radial direction such that a longitudinal axis of a respective lamina element 416 extends from the circumference to a center point of the induction device 300 .

[0108] The lamina units 416 , each having a plurality of lamina elements 410 , have an at least substantially triangular basic shape.

[0109] In particular, a lamina unit 416 is shown which has a stepped design of the individual lamina elements 410 , so that the lamina unit has a substantially triangular basic geometry.

[0110] The lamina element 410 protrudes through the opening of the cover element 438 .

[0111] The cover element 438 can be configured with or have ribs 406 between the sheet elements 416 or between the openings of the sheet element 410 .

[0112] The sheet units 416 arranged in sequence are arranged to be spaced apart from each other with gaps 412 being configured therebetween.

[0113] The wall element 418 is disposed at the outer diameter of the induction device 300 and is surrounded by the outer shell 420 .

[0114] In particular, wall element 418 may surround cover element 438 in sections or engage in cover element 438 .

[0115] The induction device 300 has a further wall element 418 at the inner diameter.

[0116] exist Figure 3 A top view of another embodiment of the sensing device 300 is shown in FIG.

[0117] according to Figure 3 Embodiments and basis Figure 2 The embodiments differ in particular in the orientation or arrangement of the sheet element 416 .

[0118] according to Figure 3 , the sheet unit 416 is arranged twisted or tilted relative to the radial direction.

[0119] The longitudinal axis of a lamina unit 416 , which in each case has a plurality of lamina elements 410 , or of a respective lamina unit 416 , has an angular offset with respect to a radial direction of the induction device 300 .

[0120] exist Figure 4 It is shown in Figure 2 A cross-sectional view of an embodiment of a sensing device 300 is shown.

[0121] according to Figure 4 , the induction device 300 has a plurality of support elements 400 arranged one above the other.

[0122] The support elements 400 are configured with openings 402 , wherein the sheet elements 416 respectively protrude through corresponding openings 402 of a plurality of support elements 400 .

[0123] In particular, the sheet metal unit 416 may be placed against an opening edge of the opening 402 of the support element 400 .

[0124] Preferably, the support elements 400 are arranged in a spaced-apart manner from each other so that a gap 412 is configured.

[0125] The spacing between the support elements 400 can be ensured, for example, by spacers such as plastic rings, for example silicone rings, plastic ropes or by means of arranged intermediate panes having a tangential corrugated profile.

[0126] according to Figure 4 , preferably at the inner diameter and the outer diameter, each sheet element 410 of the sheet unit 416 has a retaining rib section 430 .

[0127] The inner and outer wall elements 418 (at the inner diameter or outer diameter of the induction device 300) are constructed with corresponding retaining rib recesses 432, so that the retaining rib sections 430 can engage in the retaining rib recesses 432, in particular so that the sheet unit engages or can engage in the wall elements.

[0128] In addition, according to Figure 4 Due to the retaining rib sections 430 , gaps 412 are formed between the plurality of support elements 400 , which gaps can be used as flow channels 436 for a cooling fluid.

[0129] The wall element 418 can have a through-opening 426 for a cooling fluid, which is preferably arranged corresponding to or overlapping with an opening 422 of the surrounding outer housing 420 .

[0130] The cooling fluid can enter into gap 412 or flow channel 436 via opening 422 of the outer housing and through-opening 426 of outer wall element 418 and flow through induction device 300 in a radial direction.

[0131] Furthermore, cover elements 438 are respectively arranged on both sides of the induction device 300 .

[0132] Preferably, the cover element 438 is arranged in a fluid-tight manner at the wall element 418 and at the sheet element 416 .

[0133] exist Figure 5 A detailed view of a sensing device 300 according to an embodiment is shown in FIG.

[0134] according to Figure 5 It may be provided that the through-opening 426 of the outer wall element 418 is at least partially vertically offset relative to the opening 422 of the outer housing 420 , in particular at least partially vertically offset above and / or below the retaining rib recess 432 .

[0135] Between the outer housing 420 and the outer wall element 418 , a recess or flow channel 436 may be formed, along which a cooling fluid may flow at least sectionally in the circumferential direction.

[0136] In addition, from Figure 5 It can be seen that the lamina unit 416 is wrapped around the opening 402 of the support element 400 and the opening of the cover element 438 in a resting manner, in particular with a precise fit, and protrudes through these openings.

[0137] The cover element 438 is provided to close the induction device 300 in a fluid-tight manner at the upper side and at the lower side.

[0138] exist Figure 6 It is shown in Figure 2A perspective view of a sheet unit of an embodiment.

[0139] In particular, the retaining rib sections 430 of the lamina units 416 or of the individual lamina elements 410 are visible.

[0140] The retaining rib sections 430 are provided at the outside and at the inside of the sheet metal unit 416 for engaging or engaging in corresponding retaining rib recesses 432 of the wall element 418 .

[0141] Furthermore, the lamina unit 416 has an at least substantially triangular basic shape, which is achieved in particular by the stepped design of the individual lamina elements 410 .

[0142] The lamella units 416 are oriented with their respective longitudinal axes in a radial direction such that the longitudinal axes intersect at a center point or axis of rotation (of the electric brake 100 or the induction device 300 ).

[0143] Furthermore, the sheet units 416 arranged in sequence are spaced apart from each other so that a gap 412 is configured.

[0144] Figure 7 A detailed illustration of an embodiment of a sensing device 300 is shown.

[0145] In particular, with the help of Figure 7 The arrows in the figure illustrate the flow direction of the cooling fluid.

[0146] according to Figure 7 The inner wall element 418 can have a deflection section 424 for deflecting the cooling fluid flow, preferably by 180° in the radial direction.

[0147] In particular, the various gaps 412 between the sheet units 416 and between the support elements 400 may be used to enable bidirectional flow of the cooling fluid in the radial direction, thereby providing a cooling circuit inside the induction device 300 .

[0148] according to Figure 7 The cooling fluid can preferably flow radially inward between the support elements 400 , be deflected by the wall element 418 at the inner diameter of the induction device 300 or the deflection section 424 , and flow back radially outward centrally between the support elements, in particular in the gap 412 formed by the retaining rib section 430 .

[0149] In addition Figure 7 It is shown that a gap or flow channel 436 can be provided between the outer housing 420 and the wall element 418 located on the outside.

[0150] The cooling fluid can flow at least sectionally in the circumferential direction between the outer housing 420 and the wall element 418 situated on the outside.

[0151] In particular, the cooling fluid entering through the opening 422 of the outer shell 420 can be distributed in the circumferential direction and continue to flow through a plurality of through-openings 426 of the wall element 418 situated on the outside.

[0152] The gap 412 or the flow channel 436 is preferably designed such that a cooling fluid can flow through the induction device 400 having the laminar unit 416 and the support element 400 primarily in a radial direction.

[0153] In general, it should be understood in the context of the present invention that gravity-related indications, such as "above", "below", "dropped", "placed", "upright", "hanging", etc., are only used to illustrate and describe the elements shown in a specific position. The indications should not be understood as limiting the orientation of the sensing device in use or when assembled, and apply in a similar manner in the case of different orientations of the sensing device, such as a vertical orientation.

[0154] In summary, the present invention provides a highly efficient induction device 300 by means of the sheet unit 416 , which can have or provide a high power density in particular.

[0155] Furthermore, the induction device 300 according to the invention provides an optimized cooling strategy for heat conduction or heat dissipation by means of a targeted, at least substantially radially running coolant or cooling fluid flow.

[0156] Furthermore, induction device 300 allows for simplified production, in particular with regard to the number of parts and their handling, production tolerances and the resulting shortened assembly time.

[0157] Description of Reference Numerals

[0158] 100 Brakes

[0159] 102 pole components

[0160] 104 Closing plate

[0161] 106 Axis

[0162] 300 Sensing Device

[0163] 400 Support elements

[0164] 402 Opening

[0165] 406 Rib

[0166] 410 Sheet Components

[0167] 412 Gap

[0168] 416 Sheet Unit

[0169] 418 Wall element

[0170] 420 shell

[0171] 422 opening (outer shell)

[0172] 424 deflection section (wall element)

[0173] 426 Through opening (wall element)

[0174] 430 Maintain rib section

[0175] 432 Maintain rib gap

[0176] 436 Flow Channel

[0177] 438 Cover element

Claims

1. A sensing device (300), in particular a sensing device for an electric brake (100), having at least one supporting element (400) and a plurality of sheet units (416), wherein the plurality of sheet units (416) each have at least one sheet element (410), preferably a plurality of sheet elements (410), wherein the at least one support element (400) has a plurality of openings (402), and wherein one of the sheet units (416) is guided through a corresponding one of the openings (402) of the at least one supporting element (400).

2. The sensing device (300) according to claim 1, It is characterized in that The sheet element (416) is arranged at least substantially perpendicularly, preferably orthogonally, relative to the support element (400), and / or The sheet unit (416) is arranged in a radial direction of the sensing device (300) or in a manner having an angular offset relative to the radial direction of the sensing device (300).

3. The sensing device (300) according to claim 1 or 2, It is characterized in that The lamina units (416) each have a plurality of lamina elements (410), in particular each have at least three lamina elements (410), The lamina element (410) of each lamina unit (416) is designed such that the lamina unit (416) has an at least substantially triangular basic shape.

4. The induction device (300) according to any one of the preceding claims, It is characterized in that The openings (402) of the support element (400) for arranging the sheet elements (416) are configured relative to each other such that gaps (412) are configured between the sheet elements (416) arranged one after the other. The gap (412) is preferably configured as a flow channel (436) for a cooling fluid.

5. The induction device (300) according to any one of the preceding claims, It is characterized in that The induction device (300) has a wall element (418) at the inner diameter and / or at the outer diameter.

6. The sensing device (300) according to claim 5, It is characterized in that The wall element (418) at the outer diameter of the induction device (300) is surrounded by an outer shell (420), wherein the outer shell (420) has at least one opening (422) for a cooling fluid, and the wall element (418) at the outer diameter of the induction device (300) has at least one through opening (426) for a cooling fluid, and A flow channel (436) is preferably formed at least sectionally in the circumferential direction between the outer housing (420) and the wall element (418) at the outer diameter of the induction device (300).

7. The sensing device (300) according to claim 5 or 6, It is characterized in that The wall element (418) at the inner diameter of the induction device (300) has at least one deflection section (424) for deflecting cooling fluid in a preferred radial direction.

8. The induction device (300) according to any one of claims 5 to 7, It is characterized in that At least one of the wall elements (418) of the induction device (300) has a retaining rib recess (432), and wherein the sheet unit (416), in particular each of the sheet elements (410), has a retaining rib section (430) at the outer diameter and / or the inner diameter, The retaining rib recess (432) and the retaining rib section (430) are provided to engage with one another.

9. The induction device (300) according to any one of the preceding claims, It is characterized in that At least some of the sheet elements (410) of the sheet unit (416) are in close contact with the support element (400).

10. The induction device (300) according to any one of the preceding claims, It is characterized in that At least some of the lamina elements (410) have an electrically insulating material as an adhesive layer or are coated, in particular have a phosphoric acid-containing material as an adhesive layer.

11. The induction device (300) according to any one of the preceding claims, It is characterized in that A magnetic circuit element is provided which is preferably made of a soft magnetic composite or of a ceramic ferrite, in particular a ferrous magnetic circuit element.

12. The induction device (300) according to any one of the preceding claims, It is characterized in that At least one spacing member is arranged between two adjacently arranged support elements (400) among the plurality of support elements (400), in particular in the form of a silicone rope, a plastic rope, a silicone ring, a plastic ring, etc., or in the form of an intermediate element with a tangential wave profile, so that a minimum spacing is provided between the two adjacently arranged support elements (400).

13. The induction device (300) according to any one of the preceding claims, It is characterized in that The induction device (300) has at least one cover element, in particular at least one cover plate, arranged at an end side of the induction device (300). The cover element (438) has an electrical conductivity lower than the electrical conductivity of the at least one support element (400).

14. An electric brake (100) having a magnetic device for providing a magnetic field, the magnetic device having at least one pole element (102) and an induction device (300) according to any one of the preceding claims.

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