Protection element, energy supply system, communication system and motor vehicle

Abstract

A protection element (102) for improving electromagnetic compatibility wherein the protection element (102) comprises: a shielding layer (114) for protection from an electric field, a magnetic field or an electromagnetic field.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of protection elements for improving electromagnetic compatibility. BACKGROUND

[0002] Electromagnetic compatibility (EMV) means that there is no interference between electrical or electronic devices and their environment.

[0003] Modern motor vehicles are driven at least partially electrically. In addition to the excellent electrochemical energy stores, motor vehicles are also equipped with inverters and electric motors for driving or accelerating the motor vehicle. The various components are connected to one another via power cables.

[0004] With the aid of the inverter, direct current provided by the electrochemical energy store can be converted into alternating current. The inverter is also referred to as a reverse current converter.

[0005] Modern motor vehicles therefore comprise sources of strong electric, magnetic or electromagnetic fields.

[0006] In addition, an increasing number of devices that communicate via electrical, magnetic or electromagnetic signals or electromagnetic waves are integrated into the motor vehicle or used by the occupants in the motor vehicle.

[0007] As a result, ensuring EMV is becoming an increasingly greater challenge. This should be achieved with as little weight of the components as possible, so that the weight of the motor vehicle is increased as little as possible or only to a minimum extent. SUMMARY

[0008] The object of the present application is to provide an effective protection element, an effective energy supply system, an effective communication system and a motor vehicle that is effective and operates more reliably with little effort. In particular, it should be possible to use the available installation space as flexibly as possible when manufacturing the motor vehicle. In this case, in particular, it should be possible to achieve almost no electromagnetic compatibility of the individual components of the energy supply system and the communication system of the motor vehicle.

[0009] According to the application, this object is achieved by a protection element according to the respective independent claim.

[0010] The protection element is a protection element for improving electromagnetic compatibility, wherein the protection element comprises a shielding layer for protection from electric, magnetic or electromagnetic fields.

[0011] The shielding layer may, for example, be a first shielding layer. If reference is made to a first shielding layer or said first shielding layer in this text, this can mean a shielding layer.

[0012] The protection element can be, for example, a protection element for improving electromagnetic compatibility, wherein the protection element comprises a shielding layer, for example a first shielding layer, for protection from electric, magnetic or electromagnetic fields, and a second shielding layer for protection from electric, magnetic or electromagnetic fields.

[0013] If reference is made herein to a shielding layer or the shielding layer, this can mean, in particular, the first shielding layer.

[0014] The expressions "first shielding layer" and "shielding layer" can be, preferably, synonymous and interchangeable, as long as this is not explicitly stated herein and as long as no other interpretation can be derived from the context.

[0015] The expressions "the first shielding layer" and "the shielding layer" can be, preferably, synonymous and interchangeable, as long as this is not explicitly stated herein and as long as no other interpretation can be derived from the context.

[0016] The protection element can be adapted to improve electromagnetic compatibility.

[0017] The protection element can be used to improve electromagnetic compatibility.

[0018] The protection element can be, in particular, a protection element for improving electromagnetic compatibility in the near field (wavelengths in the meter range).

[0019] The term "in particular" is used in the scope of the present description and the appended claims to describe possible optional and / or alternative features.

[0020] The electric, magnetic or electromagnetic field can be, for example, an electric, magnetic or electromagnetic field which is characteristic of electromagnetic radiation. The electric, magnetic or electromagnetic field can be an electric, magnetic or electromagnetic field of electromagnetic waves or electromagnetic radiation.

[0021] The shielding layer can be a shielding layer for protection from electromagnetic radiation.

[0022] The first shielding layer can be a first shielding layer for protection from electromagnetic radiation.

[0023] The second shielding layer can be a second shielding layer for protection from electromagnetic radiation.

[0024] Shielding layers for protection from electric, magnetic or electromagnetic fields, in particular shielding layers which are adapted to shield electromagnetic radiation, are known to the person skilled in the art of electromagnetic compatibility technology.

[0025] It can be advantageous if the protection element comprises a contact region, wherein it can be advantageous if, by means of the contact region, an electrical contact can be established between the shielding layer and a device to which the protection element can be combined, for example fitted.

[0026] It can be advantageous for the protection element to comprise a second shielding layer for protection from electric, magnetic or electromagnetic fields.

[0027] It can be advantageous for an electrical contact to be established between the contact region and a device by means of a contact element, with which the protection element can be incorporated, for example fitted, at the device.

[0028] It can be advantageous for the contact region to be a surface of the shielding layer and / or of at least one of the shielding layers; and / or for the contact region to be located at a surface of the shielding layer and / or of at least one of the shielding layers; and / or for the contact region to be an outer surface contact region, wherein the outer surface contact region is configured at an outer surface of the shielding layer and / or of at least one of the shielding layers.

[0029] It can be advantageous for the protection element to comprise a contact element, wherein it can be advantageous for

[0030] - an electrical contact, in particular a direct or indirect electrical contact, can be established or stabilized between the contact region and the device by means of the contact element,

[0031] and / or

[0032] - an electrical contact bridged by the contact element can be established between the contact region and the device, wherein it can be advantageous for one surface of the contact element to be in electrically conductive contact with the contact region and for another surface of the contact element to be in electrically conductive contact with the device, wherein the contact element is electrically conductive.

[0033] It can be advantageous for the contact element to be deformable and / or elastic.

[0034] It can be advantageous for the contact element to be arranged at a carrier, wherein the carrier can preferably be deformable and / or elastic, wherein it can be advantageous for the contact element to extend from an inner side of the carrier, which can in particular face the contact region and / or the protection element side, to an outer side of the carrier, which can in particular face away from the contact region and / or the device side, in at least one section of the carrier.

[0035] It can be advantageous for the contact element to comprise or be made of an electrically conductive material, wherein the electrically conductive material can preferably be a metallic material, which can in particular comprise aluminum. The electrically conductive material can be, for example, a metal foil, a metal grid, a metal mesh or a metal woven fabric, in particular an aluminum foil, an aluminum grid, an aluminum mesh or an aluminum woven fabric, wherein the aluminum foil, the aluminum grid, the aluminum mesh or the aluminum woven fabric comprises aluminum, preferably in the form of an alloy, which comprises at least 50% by weight of Al, preferably at least 60% by weight of Al, for example at least 85% by weight of Al.

[0036] It can be advantageous for the contact element to be present at the carrier only on one side, for example

[0037] - at the edge side of the carrier which can face the edge of the protection element, or

[0038] - at the edge side of the carrier which can face away from the edge of the protection element,

[0039] from the inner side and / or the protection element side to the outer side and / or the device side.

[0040] The carrier can preferably have a polygonal, for example quadrangular, circular or oval cross section, wherein the carrier can be rounded at the corners. A quadrangular cross section, in particular a rectangular cross section, with rounded corners can be particularly advantageous.

[0041] It can be advantageous if

[0042] - the protection element has a sealing element and / or a sealing element receptacle into which the sealing element can be received completely or partially, wherein it can be advantageous if the protection element has a sealing element and a sealing element receptacle, wherein it can be advantageous if the sealing element is received completely or partially into the sealing element receptacle and / or extends in the sealing element receptacle at the protection element;

[0043] and / or

[0044] - the protection element has a sealing element, which can preferably be a liquid seal.

[0045] It can be advantageous if

[0046] - the sealing element has a contact element and / or a carrier;

[0047] and / or

[0048] - the carrier is deformable and / or elastic, wherein it can be advantageous if the contact element is arranged at the deformable and / or elastic carrier;

[0049] and / or

[0050] - the contact element has or forms the sealing element.

[0051] It can be advantageous if the contact element and / or the carrier are / is bonded in or at the contact region, wherein it can be advantageous if the contact element and / or the carrier are / is bonded in or at the contact region in such a way that an electrical contact of the contact element with the contact region is present or can be established or stabilized.

[0052] For example, the contact element and / or the carrier can be bonded in or at the contact region in such a way that an electrical contact between the contact element and the contact region is present.

[0053] It can be advantageous for the contact element and / or the carrier to be bonded in the contact region or at the contact region via a connection material arranged in the connection region.

[0054] It can be advantageous for the contact element and / or the carrier to be bonded at the contact region by means of an auxiliary element, which can be a sealing element, for example, in such a way that an electrical contact of the contact element with the contact region is present or can be established or stabilized, wherein it can be advantageous for the auxiliary element to be bonded at the contact region or in a further region of the protective element and for the contact element and / or the carrier to be bonded at the auxiliary element,

[0055] It can be advantageous for the auxiliary element to be bonded at the contact region or in a further region of the protective element via a connection material arranged in the connection region.

[0056] It can be advantageous for the auxiliary element to be bonded at the contact region or in a further region of the protective element via a connection material arranged in the connection region.

[0057] It can be advantageous for the auxiliary element to be bonded at the contact region or in a further region of the protective element via a connection material arranged in the connection region.

[0058] It can be advantageous for the auxiliary element to be bonded at the contact region or in a further region of the protective element via a connection material arranged in the connection region.

[0059] It can be advantageous for the protective element to have at least two sealing elements, wherein

[0060] It can be advantageous for one of the sealing elements to be one of the sealing elements described hereinbefore or hereinafter,

[0061] It can be advantageous for one of the sealing elements to be one of the sealing elements described hereinbefore or hereinafter,

[0062] It can be advantageous for one of the sealing elements to be one of the sealing elements described hereinbefore or hereinafter,

[0063] It can be advantageous for the carrier and / or the sealing element and / or at least one of the sealing elements to comprise and / or be made of an elastic sealing material, wherein it can be advantageous for the elastic sealing material to comprise or consist of:

[0064] a natural or synthetic rubber, for example an ethylene propylene diene rubber, a silicone rubber and / or a fluororubber,

[0065] a polyurethane,

[0066] and / or

[0067] an ethylene-tetrafluoroethylene copolymer.

[0068] Ethylene propylene diene rubber is also abbreviated to EPDM.

[0069] Silicone rubber can be, for example, methyl vinyl silicone rubber. Methyl vinyl silicone rubber is also abbreviated to VMQ.

[0070] The fluoro rubber can be, for example, FKM.

[0071] The polyurethane is also abbreviated to PU.

[0072] The ethylene-tetrafluoroethylene copolymer is also abbreviated to ETFE.

[0073] It can be particularly advantageous if the carrier comprises and / or is made of an elastic sealing material, wherein it can be advantageous if the elastic sealing material comprises

[0074] - a natural or synthetic rubber, such as, for example, ethylene propylene diene rubber, silicone rubber and / or fluoro rubber,

[0075] - a polyurethane,

[0076] and / or

[0077] - an ethylene-tetrafluoroethylene copolymer,

[0078] or consists of it. It can be particularly advantageous if the carrier comprises and / or is made of ethylene propylene diene rubber.

[0079] It can be advantageous if the protection element has a positioning and / or orientation element, which can be or have, for example, a positioning and / or orientation protrusion, wherein it can be advantageous if

[0080] - at least one section of the positioning and / or orientation element can be arranged at at least one section of the contact region;

[0081] and / or

[0082] - at least one section of the carrier and / or of the sealing element and / or of the sealing element and / or of the contact element and / or of the connection region extends along at least one section of the positioning and / or orientation element.

[0083] It can be advantageous if the protection element has a base body, such as, for example, a plastic base body, wherein

[0084] - the shielding layer is arranged at and / or extends through the base body, such as, for example, the plastic base body,

[0085] and / or

[0086] - at least one of the shielding layers is arranged at and / or extends through the base body, such as, for example, the plastic base body.

[0087] For example, the shielding layer can extend through the base body, such as, for example, the plastic base body, and further to the surface of the plastic base body and form there

[0088] - a contact region, such as, for example, an outer surface contact region,

[0089] and / or

[0090] - a region comprising a bead and / or a protrusion and / or a fold.

[0091] The plastic matrix can be composed of and / or manufactured from a fiber- containing plastic material, for example.

[0092] It can be advantageous for the protection element to have a reinforcement region, wherein the reinforcement region has reinforcement fibers and a fiber- connecting material, wherein in the reinforcement region at least a portion of the reinforcement fibers is connected with the fiber-connecting material.

[0093] It can be advantageous for the reinforcement fibers to be connected with one another in the reinforcement region by means of the fiber-connecting material.

[0094] It can be advantageous for at least one section of the shielding layer, for example of the first shielding layer, to form a laminate composite with at least one section of the reinforcement region.

[0095] It can be advantageous for at least one section of the shielding layer, for example of the first shielding layer, to have a contact region, which section forms a laminate composite with at least one section of the reinforcement region.

[0096] It can be advantageous for at least one section of the shielding layer, for example of the first shielding layer, to form a laminate composite with at least one section of the reinforcement region, the at least one section of the shielding layer, for example of the first shielding layer, being directly bonded in the laminate composite at the at least one section of the reinforcement region.

[0097] It can be advantageous for at least one section of the shielding layer, for example of the first shielding layer, to form a laminate composite with at least one section of the reinforcement region, the at least one section of the shielding layer, for example of the first shielding layer, being indirectly, for example via at least one intermediate laminate, bonded in the laminate composite at the at least one section of the reinforcement region.

[0098] It can be advantageous for the protection element to be a bottom protection element and / or a battery housing part. It can be particularly advantageous for the protection element to be a bottom protection element.

[0099] The bottom protection element is used in particular at a motor vehicle for protecting pressure vessels or pressure tanks and / or electrical components, such as high-voltage battery arrangements, in particular when driving over uneven ground, for example over door thresholds, bollards or kerbs.

[0100] It can be advantageous for the reinforcement region to be a suspension region or to extend into or through a suspension region.

[0101] It can be advantageous for the protection element and / or the bottom protection element and / or the battery housing part to be bondable, for example fittable, at an arrangement in the suspension region.

[0102] The protection element and / or the bottom protection element and / or the battery housing part can be joined, for example assembled, at the device, for example by means of a mounting recess extending through the suspension region and a screw or bolt in the suspension region.

[0103] It can be advantageous if components, for example components of a high-voltage battery device, can be joined, for example assembled, in the suspension region at the protection element and / or the bottom protection element and / or the battery housing part.

[0104] The components, for example components of a high-voltage battery device, can be joined, for example assembled, in the suspension region at the protection element and / or the bottom protection element and / or the battery housing part, for example by means of a mounting recess extending through the suspension region and a screw or bolt.

[0105] It can be advantageous if the protection element and / or the bottom protection element and / or the battery housing part has a side wall portion and an inner space, wherein the inner space is completely or partially surrounded by the side wall portion, wherein the reinforcement region extends through at least one section of the side wall portion.

[0106] It can be advantageous if the mass fraction of the reinforcing fibers in the reinforcement region is at least 70%, preferably at least 72%, particularly preferably at least 76%, for example at least 77.5%.

[0107] It can be advantageous if the mass fraction of the reinforcing fibers in the reinforcement region is at most 90%, preferably at most 88%, particularly preferably at most 84%, for example at most 82.5%.

[0108] It can be particularly advantageous if the mass fraction of the reinforcing fibers in the reinforcement region is 70% to 90%, preferably 72% to 88%, particularly preferably 76% to 84%, for example 77.5% to 82.5%.

[0109] It can be advantageous if the volume fraction of the reinforcing fibers in the reinforcement region is at least 70%, preferably at least 72%, particularly preferably at least 76%, for example at least 77.5%.

[0110] It can be advantageous if the volume fraction of the reinforcing fibers in the reinforcement region is at most 90%, preferably at most 88%, particularly preferably at most 84%, for example at most 82.5%.

[0111] It can be particularly advantageous if the volume fraction of the reinforcing fibers in the reinforcement region is 70% to 90%, preferably 72% to 88%, particularly preferably 76% to 84%, for example 77.5% to 82.5%.

[0112] Advantageously, the tensile elastic modulus of the protective element in the reinforced zone can be at least 40 GPa, preferably at least 42 GPa, particularly preferably at least 44 GPa, for example at least 47 GPa. It has been shown that such a high stiffness can be achieved, inter alia, with a high proportion by mass of reinforcing fibers in the reinforced zone as mentioned herein.

[0113] Advantageously, the tensile elastic modulus of the protective element in the reinforced zone can be at most 300 GPa, preferably at most 200 GPa, particularly preferably at most 150 GPa, for example at most 130 GPa.

[0114] For example, the tensile elastic modulus of the protective element in the reinforced zone can be 40 GPa to 300 GPa, preferably 42 GPa to 200 GPa, particularly preferably 44 GPa to 150 GPa, for example 47 GPa to 130 GPa.

[0115] The tensile modulus is also known as the elastic modulus or Young's modulus. It is used in component testing to assess the stiffness of a material or component. It is defined as the ratio of stress to strain within the elastic range of a material. The tensile modulus indicates how strongly a material responds to tensile loads and how much it deforms under stress.

[0116] The values described herein with regard to the tensile elastic modulus are, inter alia, values that can be measured at 20°C. The tensile elastic modulus can be or can be ascertained in accordance with DIN EN ISO 527-4:2023 or, in the case of unidirectional reinforcement only, in accordance with DIN EN ISO 527-5:2021.

[0117] The reinforcing fibers can be or comprise mineral fibers, in particular glass fibers or basalt fibers, carbon fibers, or polymeric fibers, in particular polyamide fibers, for example aramid fibers.

[0118] It can be advantageous if the reinforcing fibers are glass fibers.

[0119] The proportion by mass of reinforcing fibers in the reinforced zone can be determined in the following way:

[0120] 1. Sampling: A representative sample of the material forming the reinforced zone is extracted from the protective element. Here it is ensured that the sample contains a homogeneous proportion of reinforcing fibers and fiber bonding material.

[0121] 2. Drying: The sample is thoroughly dried to remove any moisture that could influence the result. This can be done by air drying or using a drying cabinet.

[0122] 3. Determining the total mass: The dried sample is weighed on a precision balance to determine its total mass.

[0123] 4. Removing the fibre bonding material: The reinforcing fibres can be separated from the fibre bonding material using a chemical method. For example, the chemical method can be combustion or pyrolysis of the fibre bonding material. Combustion is particularly suitable when the reinforcing fibres are mineral fibres, such as glass fibres or basalt fibres. Pyrolysis is particularly suitable when the reinforcing fibres are carbon fibres.

[0124] 5. Determining the mass: The mass of the reinforcing fibres remaining after the chemical method is determined on a precision balance.

[0125] 6. Calculating the mass share: The mass of the reinforcing fibres is divided by the total mass and the result is multiplied by 100 to obtain the mass share of the reinforcing fibres in percentage form.

[0126] The volume share of the reinforcing fibres in the reinforcing zone can be determined in the following way:

[0127] 1. Sampling: A representative sample of the material forming the reinforcing zone is extracted from the protective element. Here it is ensured that the sample contains a homogeneous distribution of reinforcing fibres and fibre bonding material.

[0128] 2. Making incisions: Incisions are made in different cutting directions.

[0129] 3. Determining the total cutting area: The total cutting area of the cutting areas produced is calculated.

[0130] 4. Determining the fibre cutting area: The cutting area occupied by the reinforcing fibres as a whole within the incisions is determined by microscopy.

[0131] 5. Calculating the volume share: The fibre cutting area is divided by the total cutting area and the result is multiplied by 100 to obtain the volume share of the reinforcing fibres in percentage form.

[0132] It can be advantageous if the reinforcing zone has a fibre scrim and / or the reinforcing fibres, such as glass fibres, are oriented unidirectionally in at least one ply of the reinforcing zone.

[0133] The fibre scrim can comprise glass fibres.

[0134] The fibre scrim can be, for example, a glass fibre scrim.

[0135] It can be advantageous if the reinforcing fibres, such as glass fibres, are oriented unidirectionally in at least one further ply of the reinforcing zone, wherein the orientation of the reinforcing fibres, such as glass fibres, in the at least one further ply of the reinforcing zone is different from the orientation of the reinforcing fibres, such as glass fibres, in the at least one ply of the reinforcing zone.

[0136] For example, the orientation of the reinforcing fibers in the ply can form an angle of at least 2°, preferably at least 4°, particularly preferably at least 10°, very particularly preferably at least 20°, in particular at least 30°, for example at least 45°, with the orientation of the reinforcing fibers in the other ply.

[0137] It can be advantageous for the reinforcement region to have a plurality of UD tape plies.

[0138] The term "UD tape ply" can in particular mean a ply of the reinforcement region which is manufactured from a UD tape.

[0139] The term "UD tape" is known to the skilled person. UD tapes enable lightweight construction of high-strength structural elements with high material efficiency. Unidirectional tapes, also known as UD tapes, are continuous fiber-reinforced strips of different widths with unidirectional orientation of the reinforcing fibers.

[0140] It can be advantageous for the tensile elastic modulus to be a tensile elastic modulus which can be measured in the fiber direction.

[0141] It can be advantageous for the fiber connection material to comprise and / or to be manufactured from a thermoplastic material.

[0142] It can be advantageous for the melt mass flow rate (for example also abbreviated to MFR, for example also colloquially abbreviated to MFI) of the fiber connection material to be at least 50 g / 10 min, in particular at least 100 g / 10 min, preferably at least 200 g / 10 min, particularly preferably at least 400 g / 10 min, very particularly preferably at least 650 g / 10 min, for example at least 1100 g / 10 min.

[0143] It can be advantageous for the melt mass flow rate of the fiber connection material to be at most 10000 g / 10 min, in particular at most 5000 g / 10 min, preferably at most 4500 g / 10 min, particularly preferably at most 4000 g / 10 min, very particularly preferably at most 3500 g / 10 min, for example at most 3200 g / 10 min.

[0144] It can be particularly advantageous for the melt mass flow rate of the fiber connection material to be from 50 g / 10 min to 10000 g / 10 min, in particular from 100 g / 10 min to 5000 g / 10 min, preferably from 200 g / 10 min to 4500 g / 10 min, particularly preferably from 400 g / 10 min to 4000 g / 10 min, very particularly preferably from 650 g / 10 min to 3500 g / 10 min, for example from 1100 g / 10 min to 3200 g / 10 min.

[0145] The thermoplastic material can preferably be a thermoplastic copolymer or homopolymer material.

[0146] The thermoplastic material can be, for example, a polyolefin material, preferably a polypropylene material.

[0147] Many different commercially available thermoplastic materials are contemplated for the manufacture of the thermoplastic material and / or as a component of the thermoplastic material. In particular, many different commercially available polymers and thermoplastic materials have a melt mass flow rate within the interval limits described herein.

[0148] Even in the case of the high proportion by mass and / or volume of reinforcing fibers described herein, good impregnation can be achieved in the reinforcing region, especially when a thermoplastic material having a high MFR has been used as the fiber connection material.

[0149] It has been observed, however, that the surface of the reinforcing region appears to be less uniform and that individual fibers are sometimes clearly visible.

[0150] It has been shown that the sealing material that has been compacted there does not always reliably achieve the desired sealing effect. There is therefore the challenge of achieving the desired sealing effect with higher reliability even with conventional sealing materials directly at the reinforcing region.

[0151] It has also been shown that common UD tapes are manufactured from a matrix system or fiber connection material that sinks less into the interior of the tape and tends to form a closed tape surface. Components or protection elements manufactured with such tapes therefore have a significantly more uniform surface with a lower roughness. However, in these UD tapes, this better surface property is at the expense of a poorer complete impregnation of the tape, which is reflected in the mechanical properties in particular when subjected to impact loads. For components that are subjected to impact loads, such as floor protection elements, this reduction in properties is undesirable and / or not permitted.

[0152] It can be advantageous for the protection element to have a closing layer, wherein it can be advantageous for at least one section of the closing layer to be arranged at the reinforcing region and to close at least one section of the reinforcing region.

[0153] The closing layer can completely or partially backfill pores and / or recesses present at the surface of the reinforcing region and / or reduce the roughness at the surface of the reinforcing region, whereby the desired sealing effect at the surface can be achieved with higher reliability. At the same time, a higher impact load capacity can be achieved by the fiber connection material. If the closing is carried out by the closing layer, the fiber connection material is not required for this. The fiber connection material can therefore intrude into the core region of the reinforcing region and also connect the reinforcing fibers there, whereby the impact load capacity can appear to be improved overall.

[0154] It can be advantageous if at least one enclosed section of the reinforcement zone is a suspension zone or a section of a suspension zone and / or extends around the assembly recess.

[0155] It can be advantageous if the enclosing layer does not contain reinforcing fibers or if the mass fraction of reinforcing fibers in the enclosing layer is less than the mass fraction of reinforcing fibers in the reinforcement zone or if the volume fraction of reinforcing fibers in the enclosing layer is less than the volume fraction of reinforcing fibers in the reinforcement zone.

[0156] It can be advantageous if the enclosing layer contains and / or consists of and / or is made of an enclosing plastic. The enclosing plastic can contain or be a polyolefin, for example polypropylene.

[0157] It can be advantageous if the enclosing layer is made of and / or contains and / or consists of a plastic foil, wherein the plastic foil contains and / or consists of and / or is made of an enclosing plastic.

[0158] The plastic foil can preferably be a polyolefin foil, for example a polypropylene foil.

[0159] The enclosing plastic preferably has a melt mass flow rate of less than 50 g / 10 min, particularly preferably less than 20 g / 10 min, very particularly preferably less than 10 g / 10 min, for example less than 5 g / 10 min.

[0160] When the enclosing layer does not contain reinforcing fibers, the average thickness of the enclosing layer can be preferably 10 to 500 micrometers, particularly preferably 25 to 400 micrometers, for example 30 to 250 micrometers.

[0161] The values given herein with respect to the melt mass flow rate refer to the melt mass flow rate measured according to ISO 1133-1 :2012 at 230 °C and 2.16 kg.

[0162] When the enclosing layer contains reinforcing fibers, the enclosing layer can be made with a tape, in particular a UD tape.

[0163] When the enclosing layer contains reinforcing fibers, the mass fraction of reinforcing fibers in the reinforcement zone can correspond to at least 1.1 times, preferably to at least 1.2 times, the mass fraction of reinforcing fibers in the enclosing layer.

[0164] When the enclosing layer contains reinforcing fibers, the mass fraction of reinforcing fibers in the reinforcement zone can correspond to at most 30 times, preferably to at most 20 times, the mass fraction of reinforcing fibers in the enclosing layer.

[0165] When the closure layer comprises reinforcing fibers, the mass share of reinforcing fibers in the reinforcing zone can correspond to 1.1 to 30 times, preferably to 1.2 to 20 times, the mass share of reinforcing fibers in the closure layer.

[0166] When the closure layer comprises reinforcing fibers, the volume share of reinforcing fibers in the reinforcing zone can correspond to at least 1.1 times, preferably to at least 1.2 times, the volume share of reinforcing fibers in the closure layer.

[0167] When the closure layer comprises reinforcing fibers, the volume share of reinforcing fibers in the reinforcing zone can correspond to at most 30 times, preferably to at most 20 times, the volume share of reinforcing fibers in the closure layer.

[0168] When the closure layer comprises reinforcing fibers, the volume share of reinforcing fibers in the reinforcing zone can correspond to 1.1 to 30 times, preferably to 1.2 to 20 times, the volume share of reinforcing fibers in the closure layer.

[0169] When the closure layer comprises reinforcing fibers, the average thickness of the closure layer can be preferably 50 to 500 micrometers, particularly preferably 80 to 400 micrometers, for example 125 to 250 micrometers.

[0170] It can be advantageous for the protection element to comprise a shielding zone in which the first shielding layer and the second shielding layer are spaced apart relative to one another.

[0171] In the shielding zone, the thickness of all shielding layers together can be, for example, 0.005% to 80% of the average wall thickness of the protection element. The average wall thickness of the protection element can be the average wall thickness in the shielding zone.

[0172] The thickness of all shielding layers together can be, in particular, 0.01% to 50%, preferably 0.05% to 30%, for example 0.05% to 15%, of the average wall thickness.

[0173] The density of the protection element can be preferably at most 2.0 g / cm 3 , particularly preferably at most 1.7 g / cm 3 . The density of the protection element can be, in particular, in the range from 0.03 g / cm 3 to 2.0 g / cm 3 , for example in the range from 0.04 g / cm 3 to 1.7 g / cm 3 .

[0174] The density of the protective element can in particular be the average density of the protective element. The average density can be ascertained from the mass and the volume of the protective element. The volume of the protective element can correspond, for example, to the volume of a liquid, for example water, which is displaced by the protective element when immersed in the liquid, for example water.

[0175] At least one layer of the protective element can be foamed. At least one foamed layer of the protective element can comprise, for example, foamed plastic.

[0176] A particularly low density can be achieved, for example, by foaming at least one layer of the protective element and keeping the thickness of the shielding layer and / or all shielding layers together as small as possible. This can in particular contribute to achieving a significant shielding attenuation with a particularly light protective element, whereby the effectiveness and operating safety of the motor vehicle can ultimately be improved.

[0177] Surprisingly, the use of two shielding layers according to the application Figures 12 to 16 Experiments described in more detail have shown that a more significant shielding attenuation effect can be achieved with two shielding layers according to the application. This is achieved with very little expenditure of shielding material.

[0178] In particular, in this respect, the protective element according to the application can be produced effectively and with particularly little expenditure of shielding material.

[0179] The number of shielding layers comprised by the protective element is not limited to two. For example, the protective element can comprise only one shielding layer or more than two shielding layers.

[0180] It can be advantageous for the protective element to comprise a third shielding layer for protection from electric, magnetic or electromagnetic fields.

[0181] It can be particularly advantageous for the protective element to comprise a fourth shielding layer for protection from electric, magnetic or electromagnetic fields.

[0182] It can be advantageous for the second shielding layer and the third shielding layer to be spaced apart relative to one another in a shielding region in which the first shielding layer and the second shielding layer are spaced apart relative to one another.

[0183] In at least one region of the shielding region in which the first shielding layer and the second shielding layer are spaced apart relative to one another, the distance between the second shielding layer and the third shielding layer can differ from the distance between the first shielding layer and the second shielding layer.

[0184] It can be advantageous for the protection element to comprise one or a plurality of reinforcing layers, wherein it can be advantageous for the reinforcing layer or at least one of the reinforcing layers to contain fibers, for example glass fibers, in particular in the form of glass fibers contained in unidirectional tapes. In the layer configuration of the protection element, the reinforcing layer or at least one of the reinforcing layers can be arranged closer to the outer surface of the protection element and / or closer to the outer surface of the protection element than at least one of the plurality of shielding layers at least in a section of the protection element.

[0185] It can be advantageous for the intermediate layer to be arranged between the first shielding layer and the second shielding layer.

[0186] The intermediate layer can preferably comprise a plastic layer and / or a reinforcing layer.

[0187] The intermediate layer can comprise a plastic layer.

[0188] The intermediate layer can comprise a reinforcing layer. The reinforcing layer can contain reinforcing elements, for example fibers.

[0189] The intermediate layer can comprise a plastic layer and a reinforcing layer.

[0190] The term "intermediate layer" can refer herein to a single-layered intermediate layer or to a multi-layered intermediate layer configuration.

[0191] The intermediate layer can preferably be arranged between the first shielding layer and the second shielding layer in the shielding region.

[0192] When the protection element comprises a third shielding layer for protection from electric, magnetic or electromagnetic fields, a further intermediate layer can be arranged between the second shielding layer and the third shielding layer. The layer configuration of the further intermediate layer can correspond to the layer configuration of the intermediate layer or can differ therefrom.

[0193] The further intermediate layer can preferably be arranged between the second shielding layer and the third shielding layer in the shielding region.

[0194] The protection element is not limited in terms of type and number of layers. In particular, the protection element can comprise further layers in addition to the layers mentioned.

[0195] It can be particularly advantageous for a layer composite region to be present in which the first shielding layer and the second shielding layer are connected by means of the intermediate layer.

[0196] Advantageously, a layer composite region can be present in the shielding region in which the first shielding layer and the second shielding layer are connected by means of the intermediate layer.

[0197] The protection element can be a layer composite protection element or a layer composite component.

[0198] It can be particularly advantageous if the first shielding layer, the second shielding layer and the intermediate layer arranged between the first shielding layer and the second shielding layer represent a layer configuration or a part of a layer configuration of a layer composite protection element or a layer composite component.

[0199] The protection element, for example the layer composite protection element or the layer composite component, can be obtained completely or partially by means of compression molding.

[0200] The protection element, for example the layer composite protection element or the layer composite component, can be obtained completely or partially, in particular, by means of a compression molding process, wherein a precursor material of the intermediate layer is arranged between a precursor of the first shielding layer and a precursor of the second shielding layer. The protection element precursor obtained in this case can be converted into the protection element, for example the layer composite protection element or the layer composite component.

[0201] The protection element, for example the layer composite protection element or the layer composite component, can be obtained at least partially by means of injection molding.

[0202] The protection element, for example the layer composite protection element or the layer composite component, can be obtained completely or partially, in particular, by means of an injection molding process, wherein a flowable precursor substance of the intermediate layer or of a part of the intermediate layer is brought between a precursor of the first shielding layer and a precursor of the second shielding layer. The protection element precursor obtained in this case can be converted into the protection element, for example the layer composite protection element or the layer composite component.

[0203] The conversion of the protection element precursor into the protection element can take place, for example, in a molding tool, for example in a compression molding tool or an injection molding tool.

[0204] Preferably, the conversion into the protection element, for example the layer composite protection element or the layer composite component, can take place in the molding tool. In this case, the interior space described herein of the protection element and / or the recess described herein of the protection element can be completely or partially configured.

[0205] The shielding layer can differ from the further layer or the further layers of the protection element, for example, in that the electrical conductivity of the shielding layer is greater than the electrical conductivity of the further layer or the further layers of the protection element.

[0206] It can be particularly advantageous if one shielding layer is electrically conductive and / or if a plurality of shielding layers are electrically conductive.

[0207] When reference is made here to the electrical conductivity of a shielding layer, this means, in particular, the electrical conductivity of the shielding layer in the layer plane. The electrical conductivity can exist in at least one direction within the layer plane.

[0208] The electrical conductivity of the shielding layer can be at least 5 S / m, preferably at least 20 S / m, for example at least 100 S / m, in at least one direction within the layer plane.

[0209] It can be advantageous if the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, has a magnetic permeability value µ r of at least 10. Preferably, the magnetic permeability value can be at least 50, particularly preferably at least 250, very particularly preferably at least 1000, for example at least 5000. The magnetic permeability value µ r may be in the range from 10 to 10000000, preferably from 50 to 2000000, particularly preferably from 250 to 1500000.

[0210] It can be advantageous if the magnetic permeability value µ r of the first shielding layer is at least 10 times larger, particularly preferably at least 50 times larger, for example at least 400 times larger, than the magnetic permeability value µ r of the second shielding layer.

[0211] It can be advantageous if the magnetic permeability values of the first shielding layer and of the second shielding layer are present according to the following formula:

[0212] µ r (1) = k µ r (2)

[0213] wherein

[0214] µ r (1) represents the magnetic permeability value µ r of the first shielding layer,

[0215] µ r (2) represents the magnetic permeability value µ r of the second shielding layer, and

[0216] the coefficient k can be at least 10, preferably at least 10 2 , particularly preferably at least 10 3 , very particularly preferably at least 10 4 , for example at least 10 5 .

[0217] A particularly high magnetic permeability value of the first shielding layer can be advantageous. The coefficient k can in particular be at most 10 7 , preferably at most 5 times 10 6 , particularly preferably at most 2 times 10 6 , very particularly preferably at most 8 times 10 5 , for example at most 6 times 10 5 .

[0218] The coefficient k can advantageously be in the range from 10 to 10 7 , preferably in the range from 10 to 5 times 10 6 , particularly preferably in the range from 102 up to 10 6 very particularly preferably in the range from 10 3 up to 10 6 for example in the range from 10 4 up to 10 5 up to 10

[0219] It can be particularly advantageous if the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, is ferromagnetic.

[0220] Preferably, the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, can comprise or can be formed from a Mu-metal, a permalloy or a supermalloy.

[0221] It can be advantageous if the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, comprises or is formed from a Mu-metal.

[0222] It can be advantageous if the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, comprises or is formed from a permalloy.

[0223] It can be advantageous if the shielding layer and / or at least one of the shielding layers, for example the first shielding layer, comprises or is formed from a supermalloy.

[0224] For certain applications in which a particularly pronounced shielding attenuation effect is desired, it has proven particularly helpful to implement the shielding layer and / or at least one of the shielding layers such that the magnetic permeability value µ r is high, or to manufacture at least one shielding layer from a ferromagnetic material, for example from a Mu-metal. In connection with the present application it has been recognized that an effective shielding in the near field can thus be achieved, among other things.

[0225] It can be particularly advantageous if the protection element comprises a contact region in which the first shielding layer and the second shielding layer are in electrical contact, or in which an electrical contact can be established between the first shielding layer and the second shielding layer.

[0226] In the contact region, the first shielding layer and the second shielding layer can be in electrical contact. The first shielding layer and the second shielding layer can be in direct electrical contact in the contact region. One of the two shielding layers can reach the other of the two shielding layers in the contact region. In the contact region, a surface of the first shielding layer can extend along a surface of the second shielding layer in contact with the surface of the second shielding layer.

[0227] In the contact region, the first shielding layer and the second shielding layer can be in indirect electrical contact. In the contact region, an electrically conductive connection element can be provided, which connects the first shielding layer and the second shielding layer. Preferably, the electrically conductive connection element can bridge the first shielding layer and the second shielding layer across the intermediate layer.

[0228] The electrically conductive connection element can bridge the first shielding layer and the second shielding layer, for example, across the intermediate layer. Alternatively, the electrically conductive connection element can bridge the first shielding layer and the second shielding layer at an edge. The edge can be an edge of the intermediate layer or an edge of the protection element, wherein the first shielding layer and the second shielding layer can preferably extend up to the edge of the protection element.

[0229] In the contact region, an electrical contact can be established between the first shielding layer and the second shielding layer. In the contact region, an electrical contact can preferably be established between the first shielding layer and the second shielding layer via an arrangement region. The arrangement region can be configured, for example, such that the electrically conductive connection element can be arranged in or at the arrangement region. The arrangement region can be, for example, a receiving region or comprise a receiving region, wherein the electrically conductive connection element or a portion of the electrically conductive connection element can be received into the receiving region. It can be advantageous if the first shielding layer and the second shielding layer each extend to the arrangement region, for example, to the receiving region.

[0230] The electrically conductive connection element described herein can be, for example, a sleeve, a screw, a rivet, a hose, in particular a fully weft-knitted hose, or a sheet metal piece, in particular a sheet metal piece formed by reshaping a sheet metal.

[0231] Preferably, the protection element comprises a contact region.

[0232] By means of the contact region, an electrical contact can be established between the shielding layer and a device to which the protection element can be coupled, for example, fitted.

[0233] By means of the contact region, an electrical contact can be established between at least one of the shielding layers of the protection element and a device to which the protection element can be coupled, for example, fitted.

[0234] By means of the contact region, an electrical contact can be established between at least one of the shielding layers of the protection element and a device to which the protection element can be coupled, for example, fitted.

[0235] The contact region can preferably be a surface of the shielding layer and / or a surface of at least one of the shielding layers and / or be located at a surface of the shielding layer and / or at a surface of at least one of the shielding layers.

[0236] The electrical contact that can be established between the contact region and the device can be a direct electrical contact or an indirect electrical contact between a surface of the at least one shielding layer and the device. When the contact is an indirect contact, the contact can be an electrical contact between the at least one shielding layer and the device that is bridged or is to be bridged by a bridging element.

[0237] It can be particularly advantageous if the protection element comprises a contact element.

[0238] Preferably, the electrical contact that can be established or stabilized between the contact region and the device by means of the contact element is in particular a direct or indirect electrical contact.

[0239] For example, the direct electrical contact that can be established or stabilized between the contact region and the device by means of the contact element.

[0240] Here, the contact element can press from an inner region of the protection element onto the at least one shielding layer in the region of the contact region. Thereby, the at least one shielding layer can be supported from the inner region of the protection element in the region of the contact region such that an outer surface of the at least one shielding layer that can be the contact region can be firmly pressed onto the device.

[0241] For example, the protruding element can be pressed onto the shielding layer such that the contact region is curved, for example, point-like, towards the device at this point, whereby a more stable electrical contact to the device can be established. The contact element can thus be electrically conductive or electrically insulating. This is because it can essentially promote the establishment or stabilization of a direct electrical contact between the at least one shielding layer and the device by means of a supporting action. The contact element itself then does not necessarily have to conduct electrical current.

[0242] Preferably, the electrical contact that can be established between the contact region and the device is bridged by the contact element. For example, one surface of the contact element can be in electrically conductive contact with the contact region, which can be a surface of the at least one shielding layer, for example, and another surface of the contact element can be in electrically conductive contact with the device. The contact element is then electrically conductive.

[0243] The contact element can preferably be ring-shaped. The ring-shaped contact element can be a sleeve. This shape can be advantageous because a connecting element, for example a screw, can be guided through an opening of the ring-shaped contact element or sleeve to fasten the protection element at the device.

[0244] Advantageously, at least a portion of the contact element can be connected and / or embedded in the intermediate layer in a material-fit manner. This can be achieved, for example, in a particularly elegant manner by positioning the contact element at the desired location between the first shielding layer and the second shielding layer in a shaping process such that a precursor material of the intermediate layer, for example a plastic material and / or a reinforcing material, in particular a plastic melt, can unfold around the contact element and embed the contact element in the resulting intermediate layer.

[0245] Preferably, the shielding layer and / or at least one of the shielding layers can comprise a shielding layer protrusion.

[0246] It can be advantageous if the shielding layer protrusion comprises a contact region.

[0247] The shielding layer protrusion can in particular be understood as a region of the layer configuration of the shielding layer which protrudes beyond the other layers of the protection element.

[0248] Advantageously, the electrically conductive connecting element, for example a sleeve, can at the same time provide a receptacle for the connecting element, the protection element can be joined, for example fitted, at the connecting element, via the connecting element an electrical contact is established or can be established in the contact region between the first shielding layer and the second shielding layer.

[0249] Preferably, the shielding layer and / or at least one of the shielding layers extends into the contact region. The contact region can be an outer surface contact region.

[0250] In the outer surface contact region, the shielding layer and / or at least one of the shielding layers can form a cover layer of the layer configuration of the protection element.

[0251] The layer which forms the final layer in the layer configuration of the protection element is referred to as cover layer at all times herein. One of the main surfaces of the cover layer then forms one of the main surfaces of the protection element.

[0252] The protection element can preferably comprise an offset region. In the offset region, at least one of the shielding layers can extend to the other shielding layer or to one other shielding layer. The offset region can be arranged in the transition from the shielding region to the contact region.

[0253] It can be advantageous if at least one of the shielding layers comprises a hem and / or a protruding region and / or a fold. The hem can be a half-hem or a full-hem. Via the hem, the protruding region and / or the fold, an electrical contact can exist between the first shielding layer and the second shielding layer. Alternatively or additionally, an electrical contact can be established in the contact region between the shielding layer and the device and / or between at least one of the shielding layers and the device via the hem, the protruding region and / or the fold.

[0254] It can be particularly advantageous if the shielding layer and / or at least one of the shielding layers, for example at least the second shielding layer, comprises:

[0255] - a metal alloy, wherein the metal alloy can be for example a metal alloy based on aluminum, copper, iron or silver;

[0256] - an electrically conductive carbon material, wherein the electrically conductive carbon material can for example comprise carbon fibers or graphite;

[0257] - a composite of a metal and a textile material, preferably a metal-coated textile material, wherein the textile material can preferably be a knitted fabric, a woven fabric, a scrim, a weft-knitted fabric, a knitted fabric or a nonwoven fabric, for example a composite of an aluminum foil and a PET nonwoven fabric;

[0258] - a foil, preferably a metal foil, for example an aluminum foil;

[0259] - a metal sheet;

[0260] - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be for example a knitted fabric, a woven fabric, a scrim, a weft-knitted fabric or a knitted fabric; and / or

[0261] - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be for example a nonwoven fabric.

[0262] One or more shielding layers can accordingly comprise at least one of the above-listed alternatives independently from each other, respectively.

[0263] Preferably, the shielding layer and / or at least one of the shielding layers, for example at least the second shielding layer, is present as

[0264] - a foil,

[0265] - a sheet,

[0266] - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be for example a woven fabric, a weft-knitted fabric or a knitted fabric, or as

[0267] - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be for example a nonwoven fabric.

[0268] The foil can be a metal foil, for example an aluminum foil.

[0269] Preferably, the shielding layer and / or at least one of the shielding layers, for example at least the second shielding layer, is selected from:

[0270] - an aluminum foil,

[0271] - an aluminum grid,

[0272] - a stainless steel grid,

[0273] - a bronze grid,

[0274] - a copper grid,

[0275] - a plastic nonwoven fabric, for example a PET nonwoven fabric, with an applied aluminum film,

[0276] - a plastic non-woven fabric (e.g. a PET non-woven fabric) which is coated on one side with copper,

[0277] - a unidirectional tape containing carbon fibers,

[0278] - a non-woven fabric composed of recycled carbon fibers,

[0279] - a graphite foil and

[0280] - a polymer (e.g. polypropylene) combined with an aluminum grid.

[0281] It can be particularly advantageous if the shielding layer and / or at least one of the shielding layers, e.g. at least the second shielding layer, comprises a metal, e.g. aluminum, copper, iron and / or silver.

[0282] It can be particularly advantageous if the shielding layer and / or at least one of the shielding layers, e.g. at least the second shielding layer, comprises aluminum.

[0283] It can be particularly advantageous if the thickness of the shielding layer and / or at least one of the shielding layers, e.g. the thickness of the second shielding layer, is at most 3 mm.

[0284] Preferably, the thickness of the shielding layer and / or at least one of the shielding layers, e.g. the thickness of the second shielding layer, can be 50 pm to 2.5 mm, particularly preferably 100 pm to 2 mm, very particularly preferably 200 pm to 1.5 mm, e.g. 0.001 mm to 0.7 mm.

[0285] Preferably, the thickness of the shielding layer and / or at least one of the shielding layers, e.g. the thickness of the second shielding layer, can be the average thickness of the respective shielding layer.

[0286] It can be advantageous if the thickness of the shielding layer and / or of all shielding layers, e.g. the thickness of the first shielding layer, the thickness of the second shielding layer and the thickness of at least one further shielding layer, if present, is at most 3 mm, preferably 50 pm to 2.5 mm, particularly preferably 100 pm to 2 mm, very particularly preferably 200 pm to 1.5 mm, e.g. 0.001 mm to 0.7 mm, respectively.

[0287] It can be particularly advantageous if the shielding layer and / or at least one of the shielding layers, e.g. at least the second shielding layer, is an aluminum foil or an aluminum sheet. The thickness of the aluminum foil or the aluminum sheet can be, in particular, 0.02 mm to 1 mm, preferably 0.05 mm to 0.5 mm, particularly preferably 0.1 mm to 0.25 mm, e.g. 0.12 mm to 0.18 mm.

[0288] Advantageously, the shielding layer and / or at least one of the shielding layers, e.g. the first shielding layer, can have a magnetic permeability value m rThe at least 10, can be ferromagnetic and / or can comprise or can be formed from Mu-metal, and at least one of the shielding layers and / or the shielding layers, for example at least the second shielding layer, can be a foil, a metal foil, an aluminum foil, a metal sheet or an aluminum sheet.

[0289] It can be particularly advantageous if the foil, the metal foil, the aluminum foil, the metal sheet or the aluminum sheet, for example the foil, the metal foil or the aluminum foil, is bonded at an adjacent layer by means of an adhesive. The adjacent layer can be, for example, an intermediate layer, a plastic layer and / or a reinforcing layer.

[0290] It can be advantageous if the shielding layer and / or at least one of the shielding layers is formed on a surface of the base layer.

[0291] The shielding layer and / or at least one of the shielding layers can preferably be formed on the surface by deposition from a surrounding medium. The surrounding medium can be a surrounding fluid, for example a surrounding gas phase.

[0292] Methods for depositing a layer on a surface from a surrounding medium are known to the person skilled in the art.

[0293] The shielding layer and / or at least one of the shielding layers can be, for example, vapor-deposited on the surface.

[0294] The base layer can be an intermediate layer, for example a plastic layer, which forms or is contained in an intermediate layer described herein, or a reinforcing layer, which forms or is contained in an intermediate layer described herein.

[0295] Preferably, the protection element can comprise a protection element surface for mounting the protection element at a device which can be disturbed by an electric, magnetic or electromagnetic field, or at a source of an electric, magnetic or electromagnetic field.

[0296] The protection element can comprise, for example, a protection element surface for mounting the protection element at a device which can be disturbed by an electric, magnetic or electromagnetic field.

[0297] The protection element can comprise, for example, a protection element surface for mounting the protection element at a source of an electric, magnetic or electromagnetic field.

[0298] The protection element can be an immission protection element. The immission protection element can preferably comprise a protection element surface for mounting the immission protection element at a device which can be disturbed by an electric, magnetic or electromagnetic field.

[0299] The protection element can be an emission protection element. The emission protection element can preferably comprise a protection element surface for mounting the emission protection element at a source of an electric, magnetic or electromagnetic field.

[0300] The protection element can have a recess and / or define an inner space. The inner space can extend into the recess. It can be advantageous that the protection element can have a sealing element or a carrier or at least two of the sealing elements at least partially extend around the recess. This can help to ensure that the inner space is seal-tight with respect to the environment.

[0301] A first span, e.g. a length, of the protection element which is measurable in a first direction can be greater than a second span, e.g. a width, of the protection element which is measurable in a second direction orthogonal to the first direction.

[0302] A first span, e.g. a length, of the protection element which is measurable in a first direction can be greater than a third span, e.g. a depth, of the protection element which is measurable in a third direction orthogonal to the first direction.

[0303] It can be advantageous that the third direction is oriented in a manner orthogonal to the first direction and orthogonal to the second direction.

[0304] It can be advantageous that the span measurable in the first direction is 0.7 m to 4.0 m, preferably 1.0 m to 3.5 m, in particular 1.2 m to 3.2 m, for example 1.5 m to 3.0 m.

[0305] It can be advantageous that the span measurable in the second direction is at most 90% of the span measurable in the first direction and / or is 0.2 m to 3.0 m, preferably 0.3 m to 2.8 m, in particular 0.5 m to 2.6 m, for example 0.8 m to 2.3 m.

[0306] It can be advantageous that the span measurable in the third direction is at most 30% of the span measurable in the first direction and / or is 3 cm to 120 cm, preferably 4 cm to 100 cm, in particular 5 cm to 90 cm, for example 6 cm to 80 cm.

[0307] Preferably, the protection element surface can extend from the protection element edge to the recess of the protection element for mounting of the protection element.

[0308] The protection element surface can be a surface of a flange.

[0309] The protection element surface can have a plurality of contact regions. Each of the contact regions can be a contact region as described herein.

[0310] The average distance of the contact regions can preferably be in the range of 0.5 cm to 80 cm, particularly preferably in the range of 1 cm to 50 cm, for example in the range of 1.5 cm to 30 cm.

[0311] The recess can extend into the inner space of the protection element.

[0312] The device, which can be disturbed by an electric, magnetic or electromagnetic field, can be or can be received completely or partially into the interior space.

[0313] The source of the electric, magnetic or electromagnetic field can be or can be received completely or partially into the interior space.

[0314] The wall, for example the side wall, of the protection element can extend to the surface of the protection element. The wall can completely or partially enclose the interior space or completely or partially extend around the interior space.

[0315] The protection element can have at least one feed-through region.

[0316] The feed-through region can extend into the interior space of the protection element. The feed-through region can extend into the interior space, for example, through a wall, for example through a side wall.

[0317] The protection element can be a housing element. The protection element can be, for example, an inverter housing element. The inverter can be or can be received completely or partially into the interior space.

[0318] The cable can extend through the feed-through region to the inverter. The cable shield of the cable is preferably connected to the shield of the housing all around and / or completely and / or uninterruptedly.

[0319] According to the application, this object is achieved by an energy supply system according to the respective independent claim.

[0320] The energy supply system can be, for example, an energy supply system for a completely or partially electrically driven vehicle. In particular, the energy supply system can be configured and designed to completely or partially provide the energy required for accelerating a motor vehicle.

[0321] The energy supply system comprises at least two conversion devices.

[0322] A device which is configured and designed to convert energy or current from one form into another form is referred to as a conversion device in particular herein.

[0323] One of the at least two conversion devices can be, for example, an inverter. The inverter can be configured and designed to convert direct current, which can be supplied to the inverter from an electrochemical energy storage device, into alternating current.

[0324] At least one of the at least two conversion devices can be an electric machine, for example an electric motor. The electric machine, for example the electric motor, can be configured and designed to convert electrical energy, which can be supplied to the electric machine, for example the electric motor, as alternating current, into rotational motion with which a motor vehicle can be accelerated.

[0325] The energy supply system comprises a connecting device which connects the at least two conversion devices. Preferably, the connecting device can connect the at least two conversion devices in a current-conducting manner.

[0326] The energy supply system comprises at least one protective element described herein at at least one of the at least two conversion devices and / or at the connecting device for protecting the environment of the energy supply system from electric, magnetic or electromagnetic fields.

[0327] Preferably, the energy supply system can comprise at least one protective element described herein at at least one of the at least two conversion devices. The at least one protective element can serve to protect the environment of the energy supply system from electric, magnetic or electromagnetic fields.

[0328] Preferably, the energy supply system can comprise at least one protective element as described herein at the connecting device. The at least one protective element can serve to protect the environment of the energy supply system from electric, magnetic or electromagnetic fields.

[0329] Preferably, the energy supply system can comprise at least one protective element described herein at at least one of the at least two conversion devices and at the connecting device. The at least one protective element can serve to protect the environment of the energy supply system from electric, magnetic or electromagnetic fields.

[0330] Preferably, the energy supply system can comprise at least one first protective element described herein at at least one first conversion device of the at least two conversion devices and at least one second protective element at at least one second conversion device of the at least two conversion devices. Preferably, the second protective element can also be a protective element described herein. The at least two protective elements serve to protect the environment of the energy supply system from electric, magnetic or electromagnetic fields.

[0331] It is preferred that, for the protection of the environment, at least one of the at least two conversion devices and / or the connecting device is completely or partially received into an inner space or recess of the at least one protective element.

[0332] The connecting device can preferably comprise a cable or a cable bundle.

[0333] The at least two conversion devices and the connecting device can represent a source of electric, magnetic or electromagnetic fields. The at least one protective element comprised by the energy supply system can preferably be an emission protective element which can protect devices in the environment of the energy supply system from interference by electric, magnetic or electromagnetic fields.

[0334] It can be advantageous if a first of the conversion devices is configured to convert an electric current which can be introduced into the first conversion device into an electric current which can be conducted out of the first conversion device. The first of the conversion devices can preferably be a current converter, for example an inverter.

[0335] It can be advantageous if a second of the conversion devices is configured to convert an electric current which can be introduced into the second conversion device into a rotational movement.

[0336] Preferably, a shielding layer, for example a first shielding layer, is arranged closer to the inner surface of the recess of the protection element than a further shielding layer, for example a second shielding layer, for example has a magnetic permeability value μ r is at least 10, preferably at least 50, particularly preferably at least 250, very particularly preferably at least 1000, for example at least 5000; and / or is ferromagnetic; and / or comprises or is formed from a Mu alloy.

[0337] In particular, a source of an electric field, a magnetic field or an electromagnetic field which is received completely or partially into the interior space or recess of the protection element can be well shielded. It has been found that a better shielding effect can be achieved if a shielding layer which has one of the given magnetic permeability values, for example is ferromagnetic and / or comprises a Mu alloy, is particularly close to the source to be shielded.

[0338] It can be advantageous if the sealing material abuts or is arranged in the energy supply system at the suspension region, wherein it can be advantageous if the sealing material extends around the fitting recess.

[0339] It can be advantageous if the sealing material abuts or is arranged in the energy supply system at the closure layer.

[0340] According to the application, this object is achieved by a communication system according to the respective independent claims.

[0341] The communication system can be, for example, a communication system for a motor vehicle which is driven completely or partially electrically.

[0342] It is however also conceivable that the communication system is a communication system for communicating between different devices, for example different motor vehicles.

[0343] Any system which is capable of transmitting information between the communication means of the communication system can be understood as a communication system. In particular, the communication system can be constructed and configured to transmit information in the form of electrical signals, magnetic signals or electromagnetic signals.

[0344] Communication here can in particular be understood as any transmission of electrical signals, magnetic signals or electromagnetic signals, any control thereby achieved and any connection of the communication means of the communication system thereby achieved.

[0345] The communication system comprises a first communication means having an interface for emitting an electric, magnetic or electromagnetic signal.

[0346] Different communication means are installed in particular in motor vehicles, which enable communication between different components of the vehicle or between one or more components of the motor vehicle and the occupants of the motor vehicle.

[0347] The first communication means can be a control instrument or a telecommunication means, for example.

[0348] The communication system comprises a second communication means having an interface for receiving the electric, magnetic or electromagnetic signal of the first communication means.

[0349] The second communication means can be a control instrument or a telecommunication means, for example.

[0350] The interfaces can be configured and designed to transmit the electric, magnetic or electromagnetic signal via a transmission means extending from the interface of the first communication means to the interface of the second communication means. The transmission means can comprise a cable, for example.

[0351] Alternatively, the interfaces can be configured and designed to transmit the electric, magnetic or electromagnetic signal through a medium surrounding the interfaces. The medium can comprise air, for example, or be air. Preferably, the interface of the first communication means can have or be connected to a sending means with which the electric, magnetic or electromagnetic signal can be emitted.

[0352] The interface of the second communication means can have or be connected to a receiving means, which can receive the electric, magnetic or electromagnetic signal of the first communication means. The receiving means can be configured and designed to receive the electric, magnetic or electromagnetic signal of the first communication means.

[0353] The communication system comprises at least one protective element described herein for protecting at least one of the communication means from an electric, magnetic or electromagnetic field, wherein it is preferred that, in order to protect at least one of the communication means from an electric, magnetic or electromagnetic field, at least one of the communication means is completely or partially received into an inner space or recess of the protective element.

[0354] It can be advantageous if the sealing material is applied or arranged in the communication system at the suspension region, wherein it can be advantageous if the sealing material extends around the assembly recess.

[0355] It can be advantageous if the sealing material is applied or arranged in the communication system at the closure layer.

[0356] According to the application, this object is achieved by a motor vehicle according to the respective independent claims.

[0357] The motor vehicle can be, for example, a motor vehicle that is driven completely or partially electrically.

[0358] The motor vehicle comprises a source of an electric, magnetic or electromagnetic field.

[0359] The source can advantageously be a conversion device, for example an electric motor or an inverter, or a connection device, of an energy supply system of the motor vehicle.

[0360] The connection device can connect two conversion devices to one another. Preferably, the connection device can connect two conversion devices to one another in a current-conducting manner.

[0361] The motor vehicle comprises a device that can be disturbed by an electric, magnetic or electromagnetic field, wherein the device that can be disturbed by an electric, magnetic or electromagnetic field can be, for example, or comprise a communication mechanism of the motor vehicle.

[0362] The motor vehicle comprises at least one protective element described herein, wherein the protective element is arranged completely or partially between the device that can be disturbed by an electric, magnetic or electromagnetic field and the source.

[0363] It can be advantageous if the sealing material abuts or is arranged in the motor vehicle at the suspension region, wherein it can be advantageous if the sealing material extends around the assembly recess.

[0364] It can be advantageous if the sealing material abuts or is arranged in the motor vehicle at the closure layer.

[0365] According to the application, this object is achieved by a method according to the respective independent claim.

[0366] The method is a method for producing a protective element described herein, a bottom protective element described herein and / or a battery housing part described herein, wherein the closure of the surface region of the base body of the protective element, the bottom protective element and / or the battery housing part is achieved by applying a plastic-containing sealing material.

[0367] It can be advantageous if the base body has a shielding layer and / or the shielding layer extends through the base body and / or along the surface of the base body.

[0368] The shielding layer can be, in particular, one of the shielding layers described herein or one of the shielding layers described herein.

[0369] The shielding layer can be, for example, one of the shielding layers described herein in connection with the protective element or one of the shielding layers described herein in connection with the protective element.

[0370] It can be advantageous if the base body is formed in the forming tool from a plurality of initially materials which are partially or completely overlaid on one another (auf einander geschichteten), wherein it can be advantageous if at least one of the initially materials is fiber-reinforced, wherein a plastic-containing sealing material is brought into the forming tool and / or directly in the production of the fiber-reinforced base body seals the surface region in the forming tool by the plastic-containing sealing material.

[0371] It can be advantageous if one of the initially materials which are partially or completely overlaid on one another is a shielding layer.

[0372] It can be advantageous if the base body comprises a fiber connection material and / or a fiber connection material is brought into the forming tool. The fiber connection material can preferably be a fiber connection material as described herein in connection with the protective element.

[0373] Preferably, the fiber-reinforced initially material can be a UD tape, wherein the UD tape has a fiber connection material.

[0374] For example, a plastic-containing sealing material can be brought into the forming tool and a surface region can be sealed in the forming tool by the plastic-containing sealing material directly in the production of the fiber-reinforced base body.

[0375] It can be advantageous if the base body is a fiber-reinforced base body and the surface region is porous and / or a portion of the reinforcing fibers of the base body extends to the surface region of the base body.

[0376] The surface region can be a surface region present at a reinforcing region as described herein. The reinforcing region can be produced in the forming tool when the base body is formed.

[0377] It can be advantageous if the plastic-containing sealing material is a plastic foil, in particular a plastic foil as described herein. Advantageously, the plastic foil can have an average thickness of preferably 10 micrometers to 500 micrometers, particularly preferably 25 micrometers to 400 micrometers, for example 30 micrometers to 250 micrometers.

[0378] It can be advantageous if one of the sealing layers as described herein is formed with a plastic foil.

[0379] It can be advantageous if the plastic-containing sealing material comprises reinforcing fibers. The plastic-containing sealing material comprising reinforcing fibers can in particular be a UD tape.

[0380] It can be advantageous if the sealing layer comprising the reinforcing fibers as described herein is formed with a UD tape.

[0381] It can be advantageous if the roughness of the surface region is reduced by applying the sealing material.

[0382] The protective element described herein, the bottom protective element described herein and / or the battery housing piece described herein can be a protective element, a bottom protective element and / or a battery housing piece manufactured according to the method according to the application.

[0383] Of course, features described in connection with the subject matter according to the application can also form features of the other subject matters according to the application described herein. The subject matters according to the application are here especially a protective element, an energy supply system, a communication system, a motorized vehicle and a method. BRIEF DESCRIPTION OF DRAWINGS

[0384] Further preferred features and / or advantages of the application are the subject of the drawings and the following description of embodiments.

[0385] In the drawings:

[0386] Figure 1 A schematic cross-sectional view of a segment of a protective element is shown;

[0387] Figure 2 A schematic cross-sectional view of a segment of a protective element is shown;

[0388] Figure 3 A schematic cross-sectional view of a segment of a protective element arranged at a ground contact of a motorized vehicle is shown;

[0389] Figure 4 A cross-section A-A of Figure 3 is shown;

[0390] Figure 5 A cross-section B-B of Figure 3 is shown;

[0391] Figure 6 A schematic cross-sectional view of a segment of a protective element arranged at a ground contact of a motorized vehicle is shown;

[0392] Figure 7 A cross-section C-C of Figure 6 is shown;

[0393] Figure 8 A cross-section D-D of Figure 6 is shown;

[0394] Figure 9 A schematic cross-sectional view of a segment of a protective element arranged at a ground contact of a motorized vehicle is shown;

[0395] Figure 10 A cross-section E-E of Figure 9 is shown;

[0396] Figure 11 A cross-section F-F of Figure 9 is shown;

[0397] Figures 12 to 14 A schematic view of a test configuration for verifying the effect of the shielding attenuation of various protective elements is shown;

[0398] Figure 15 A shielding attenuation of a test configuration with respect to Figure 12 is shown;

[0399] Figure 16 A shielding attenuation of a test configuration with respect to Figure 13 is shown;

[0400] Figure 17 A schematic perspective view of a protective element is shown;

[0401] Figure 18 A schematic perspective view of a part of an energy supply system is shown;

[0402] Figure 19 A cross-sectional view of Figure 18 is shown;

[0403] Figure 20 A schematic view of a communication system is shown;

[0404] Figure 21 A schematic perspective view of a protective element is shown;

[0405] Figure 22 A segment of a cross-section of the protective element shown in Figure 21 is shown;

[0406] Figure 23 A segment of a cross-section of a further protective element is shown;

[0407] Figure 24 A further view of a protective element is shown;

[0408] Figure 25 A roughly simplified view of a cross-section of a protective element is shown;

[0409] Figure 26 A segment of a cross-section of a further protective element is shown;

[0410] Figure 27 An alternative arrangement of a contact element and a sealing element is shown;

[0411] Figure 28 A contact element at a carrier is shown;

[0412] Figure 29 A segment of a protective element is shown in perspective view;

[0413] Figure 30 A further contact element at a carrier is shown;

[0414] Figure 31 a section of a cross section of a further protection element is shown;

[0415] Figure 32 a section of a cross section of a further protection element is shown;

[0416] Figure 33 a section of a cross section of a further protection element is shown;

[0417] Figure 34 a section of a cross section of a further protection element is shown;

[0418] Figure 35 a section of a cross section of a further protection element is shown;

[0419] Figure 36 a section of a cross section of a further protection element is shown;

[0420] Figure 37 a perspective view of a section of a cross section of a protection element with a reinforcing region; and

[0421] Figure 38 a section of a cross section of a further protection element is shown; Figure 37 a section of a cross section of a further protection element is shown; DETAILED DESCRIPTION

[0422] Figure 1 A protection element 102 embodied as an aluminum component 100 is shown. The protection element 102 comprises a reinforcing rib 104 also composed of aluminum. The protection element 102 shown can be incorporated as a battery housing part 106. Here, it can be used, inter alia, as a bottom protection element 108.

[0423] The protection element 102 comprises an insulation layer 110, which can be composed of a foam material, for example.

[0424] The protection element 102 comprises a protection element surface 119 for mounting the protection element at a device that can be disturbed by an electric, magnetic or electromagnetic field or at a source of an electric, magnetic or electromagnetic field.

[0425] Figure 2 The protection element shown differs from the protection element shown in Figure 1 The protection element shown differs from the protection element shown in

[0426] Figure 3A protection element 102 is shown. The protection element 102 comprises a shielding layer 114. The shielding layer 114 is a foil 105, for example an aluminum foil 116. The protection element 102 comprises a plastic layer 118.

[0427] Figure 3 The shown protection element 102 comprises a contact area 120. The contact area 120 is an outer surface contact area 154. The protection element surface 119 comprises the outer surface contact area 154.

[0428] Figure 3 The shown protection element 102 comprises a reinforcement layer 124. It is a reinforcement layer 124 reinforced with fibers 126. The reinforcement layer 124 reinforced with fibers 126 is an organic sheet 128 (Organoblech).

[0429] Figure 3 The shown protection element comprises a protection layer 130. The protection layer 130 is an insulation layer 110. The insulation layer 110 can be electrically insulating and can be an electrically insulating protection layer 130. Alternatively or additionally, the insulation layer can be a high-temperature thermal insulation layer.

[0430] Also in Figure 3 The ground 142 shown in Fig. 1 forms part of a device in which the protection element 102 can be arranged. In the case of motor vehicles and also motorcycles and bicycles, the ground potential is the body or frame. The term "ground" refers to this ground potential (Massepotenzial). In Figure 3 In Fig. 1, the ground 142 is a frame 146 belonging to a load-bearing structure 144. Via the contact area 120, there is electrical contact between the shielding layer 114 and the frame 146 comprised within the device.

[0431] Figure 4 A cross-section A-A of Figure 3 is shown. The outer surface 156 of the shielding layer 114 forms the outer surface contact area 154.

[0432] In the region of the protection element 102 shown in cross-section A-A, the shielding layer 114 is located outermost in the layer construction. It forms a cover layer 152. The outer surface contact area 154 is in direct electrical contact with the ground 142. Thus, electrical contact can be established between the shielding layer 114 and the device comprising the ground 142 by means of the outer surface contact area 154.

[0433] Figure 5 A cross-section A-A of Figure 3The plastic layer 118 is a plastic core 148 arranged between the reinforcing layers 124. One of the reinforcing layers 124 forms a cover layup 150. In the layer composite, the cover layup 150 forms a cover layer 152. The shielding layer 114 is arranged between the other reinforcing layer 124 and the barrier layer 110, which forms the protection layer 130. The barrier layer 110 represents the other cover layup 150, which in the layer composite forms the other cover layer 152.

[0434] The final layer in the layer configuration of the layer composite is referred to herein as the cover layer 152.

[0435] Figure 6 The illustrated protection element 102 comprises a first shielding layer 114 for protection against electric, magnetic or electromagnetic fields and a second shielding layer 115 for protection against electric, magnetic or electromagnetic fields.

[0436] Figure 6 The illustrated protection element 102 comprises a shielding region 113 in which the first shielding layer 114 and the second shielding layer 115 are spaced apart relative to one another. The intermediate layer 107 is arranged between the first shielding layer 114 and the second shielding layer 115. In the example shown here, the intermediate layer 107 is a reinforcing layer 124.

[0437] The intermediate layer 107 is arranged in the shielding region 113 between the first shielding layer 114 and the second shielding layer 115.

[0438] There is a layer composite region 117 in which the first shielding layer and the second shielding layer are connected by means of the intermediate layer 107. The layer composite region 117 in which the first shielding layer and the second shielding layer are connected by means of the intermediate layer 107 is present in the shielding region 113.

[0439] The two shielding layers 114 and 115 are electrically conductive.

[0440] Furthermore, in the layer composite region 117, the barrier layer 110 is bonded to the surface of the first shielding layer 114 and the plastic layer 118 is bonded to the surface of the second shielding layer 115. The plastic layer 118 is located in the layer configuration between the protection layer 130 and the second shielding layer 115. It is especially clear from Figure 8 The layer configuration is clearly seen in this view, which shows a cross-section through Figure 6 of the protection element 102 along the line D-D. The barrier layer 110 at the first shielding layer 114 represents a cover layup 150, which in the layer composite forms a cover layer 152. The protection layer 130 at the plastic layer 118 represents the other cover layup 150, which in the layer composite forms the other cover layer 152.

[0441] From Figure 6 and Figure 8It is clear from the figures that the shielding layers 114 and 115 are each a foil 105. They can be, for example, each an aluminum foil 116.

[0442] Figure 6 The protection element 102 shown comprises a contact region 111 in which the first shielding layer 114 and the second shielding layer 115 are in electrical contact.

[0443] The protection element 102 further comprises a protection element surface 119. The protection element surface can be used to mount the protection element 102 at a device that can be disturbed by an electric, magnetic or electromagnetic field or at a source of an electric, magnetic or electromagnetic field.

[0444] As is also clear from the figures, Figure 6 The ground portion 142 shown forms part of such a device. The protection element 102 can be arranged at the device. In the example shown here, the ground portion 142 is a frame belonging to a carrying structure 144, for example of a motor vehicle.

[0445] Figure 7 A cross section of the protection element is shown along the line C-C through Figure 6 .

[0446] Figure 7 The cross section shown also extends through the ground portion 142.

[0447] It is clear from the figures, inter alia, Figure 7 that the first shielding layer 114 and the second shielding layer 115 are in electrical contact in the contact region 111, Figure 7 the cross section shown being directed through this contact region. The reinforcement layer 124 serving as intermediate layer 107 does not extend into the contact region 111. The mutually facing surfaces of the shielding layer 114 and the shielding layer 115 are in electrical contact in the contact region 111.

[0448] Figure 7 It is further shown that Figure 6 The protection element 102 shown comprises a contact region 120. The contact region 120 is an outer surface contact region 154. The protection element surface 119 comprises the outer surface contact region 154.

[0449] In the region of the protection element 102 shown in the cross section C-C, the first shielding layer 114 is located outermost in the layer construction. It forms a cover layer 152.

[0450] The outer surface contact region 154 is in direct electrical contact with the ground portion 142. By means of the outer surface contact region 154, it is thus possible to establish electrical contact between the first shielding layer 114 and the device comprising the ground portion 142.

[0451] Figure 9A schematic view of a further protection element 102 is shown. The protection element 102 comprises a first shielding layer 114 and a second shielding layer 115. In the shown example, both shielding layers are foils 105, wherein the foils can for example be aluminum foils 116. In a shielding region 113 comprised in the protection element 102, the first shielding layer 114 and the second shielding layer 115 are spaced apart with respect to each other.

[0452] Between the first shielding layer 114 and the second shielding layer 115, the protection element 102 comprises an intermediate layer 107. In the example shown here, the intermediate layer 107 is a plastic layer 118. The plastic layer 118 forms a plastic core 148 of the protection element 102.

[0453] Figure 9 The shown protection element further comprises a protection layer 130. The protection layer 130 is a plastic layer 118. The protection layer 130 is arranged at a surface of the second shielding layer 115 facing away from the intermediate layer 107. The first shielding layer 114, the intermediate layer 107, the second shielding layer 115 and the protection layer 130 form a layer composite.

[0454] The first shielding layer 114 and the protection layer 130 represent a cover layer 152 of the protection element 102. This is evident in particular from Figure 11 which shows a cross section through Figure 9 the shown protection element 102 along the line F-F.

[0455] Figure 9 The shown protection element comprises a contact region 111 in which the first shielding layer 114 and the second shielding layer 115 are in electrical contact.

[0456] Figure 10 A cross section through the protection element along the line E-E is shown. It is evident in particular from Figure 9 that the surfaces of the two shielding layers 114 and 115 facing each other are in direct electrical contact. The intermediate layer 107 does not extend into the contact region 111. Figure 10

[0457] Figure 9 The shown protection element 102 comprises a protection element surface 119. At the protection element surface 119, the protection element 102 is mounted at a device which can be disturbed by an electric, magnetic or electromagnetic field or at a source of an electric, magnetic or electromagnetic field. Figure 9 The representation symbolizes the possibility that the protection element 102 is mounted via the protection element surface 119 at a grounding 142. The grounding 142 can be a part of the device at which the protection element 102 is mounted. The grounding can be a frame 146 belonging to a carrying structure 144.

[0458] Figure 9 ​The shown protection element 102 also comprises a contact area 120. The contact area 120 is an outer surface contact area 154. The protection element surface 119 comprises the outer surface contact area 154. The outer surface 156 of the first shielding layer 114 forms the outer surface contact area 154.

[0459] In Figure 10 In the shown contact area 111, the first shielding layer 114 is located outermost in the layer construction. It forms a cover layer 152. The outer surface contact area 154 is in direct electrical contact with the ground portion 142. Thus, by means of the outer surface contact area, an electrical contact can be established between the first shielding layer and the device comprising the ground portion 142.

[0460] Figures 12 to 14 Schematics of test constructions for measuring shielding attenuation are shown. Figures 12 to 14 The same holding element 139 is shown, which at the same time represents the ground portion 142. In the holding element 139, the protection element 102 is arranged accordingly. Figures 12 to 14 The shown protection element 102 is different in each case. In Figure 12 In the construction of the figure, an aluminum member 100 in the form of an aluminum plate 101 is used as protection element 102. The protection element thickness 213 corresponds to the thickness of the aluminum plate 101.

[0461] In Figure 13 In the shown test construction, the protection element 102 is a protection element comprising a first shielding layer 114 and a second shielding layer 115. Both shielding layers are foils 105. It is an aluminum foil 116.

[0462] Figure 13 The shown protection element 102 comprises a shielding area 113 in which the first shielding layer 114 and the second shielding layer 115 are spaced apart relative to each other.

[0463] Figure 13 It is also shown that a multi-ply intermediate layer 107 is arranged between the first shielding layer 114 and the second shielding layer 115. The multi-ply intermediate layer 107 comprises two plastic layers 118 and one reinforcing layer 124.

[0464] Both shielding layers 114 and 115 form a cover layer 152. The cover layer 152, which is located outermost in the layer construction, is combined with the reinforcing layer 124 via one of the plastic layers 118 in each case.

[0465] Figure 13 The shown protection element 102 comprises a contact area 111. In the contact area 111, an electrical contact is established between the first shielding layer 114 and the second shielding layer 115 via a copper band 221.

[0466] In Figure 14In the protection element 102 shown, the protection element comprises a first shielding layer 114 and a second shielding layer 115. The first shielding layer 114 is a shielding layer formed from the Mu-metal 103. It is a foil 105 formed from the Mu-metal 103. In the shielding region 113 comprised in the protection element 102, the first shielding layer 114 and the second shielding layer 115 are spaced apart relative to one another. An intermediate layer 107 is arranged between the first shielding layer 114 and the second shielding layer 115. The intermediate layer is arranged between the first shielding layer 114 and the second shielding layer 115 in the shielding region 113. The intermediate layer 107 is a plastic layer 118.

[0467] Figure 14 The protection element shown has a layer-combination region 117 in which the first shielding layer 114 and the second shielding layer 115 are connected by means of the intermediate layer 107. The layer-combination region 117 in which the first shielding layer and the second shielding layer are connected by means of the intermediate layer 107 exists in the shielding region 113.

[0468] Figure 14 The protection element 102 shown differs from the protection element 102 shown in Figure 13 The protection element 102 shown differs from the protection element 102 shown in Figure 14 In the protection element shown, the first shielding layer 114 and the second shielding layer 115 are not in electrical contact with one another. No electrical contact is established between the first shielding layer 114 and the second shielding layer 115. In the protection element shown, Figure 14 In the protection element shown, no such electrical contact is established between the first shielding layer 114 and the second shielding layer 115.

[0469] In the protection element shown, Figure 14 In the protection element shown, a source 127 of electromagnetic radiation is also shown. The source 127 can be, for example, the emitter 125. The emitter is arranged at a distance 129 from the protection element 102. The distance 129 can be varied at will.

[0470] In the protection element shown, Figure 14 A receiver 137 is also shown in the test configuration shown, which can have, for example, a sensor with which the power density can be measured at a given distance 131 from the protection element 102.

[0471] Figure 15 The shielding attenuation in the test configuration shown is shown in relation to the distance 131 from the receiver 137 (horizontal axis) and the distance 129 from the emitter 125 (vertical axis). Figure 12 The shielding attenuation in the test configuration shown is shown in relation to the distance 131 from the receiver 137 (horizontal axis) and the distance 129 from the emitter 125 (vertical axis).

[0472] Figure 16 The shielding attenuation in the test configuration shown is shown in relation to the distance 131 from the receiver 137 (horizontal axis) and the distance 129 from the emitter 125 (vertical axis). Figure 13 The shielding attenuation in the test configuration shown is shown in relation to the distance 131 from the receiver 137 (horizontal axis) and the distance 129 from the emitter 125 (vertical axis).

[0473] Figure 15 and Figure 16 The shielding attenuation shown is the shielding attenuation of electromagnetic radiation at a frequency of 0.15MHz.

[0474] In the area marked with reference numeral 141, a shielding attenuation of 70 to 72 dB has been achieved.

[0475] In the area marked with reference numeral 143, a shielding attenuation of 68 to 70 dB has been achieved.

[0476] In the area marked with reference numeral 145, a shielding attenuation of 66 to 68 dB has been achieved.

[0477] In the area marked with reference numeral 147, a shielding attenuation of 64 to 66 dB has been achieved.

[0478] In the area marked with reference numeral 149, a shielding attenuation of 59.5 to 60.5 dB has been achieved.

[0479] In the area marked with reference numeral 151, a shielding attenuation of 58.5 to 59.5 dB has been achieved.

[0480] In the area marked with reference numeral 153, a shielding attenuation of 57.5 to 58.5 dB has been achieved.

[0481] The thickness of the first shielding layer 114 is 217. Figure 13 In the test configuration, the thickness was only 0.15 mm. In the same test configuration, the thickness 219 of the second shielding layer 115 was only 0.2 mm. In contrast, in Figure 12 The test structure used an aluminum plate 101 with a thickness of 10 mm. Figure 13 In the test configuration, the thickness of the intermediate layer 107 was chosen such that the total thickness of the protective element 102 was 10 mm. In both test configurations, the protective element thickness was 10 mm. However, in... Figure 13 In the experimental construction, only a total of [number] were used. Figure 12 The aluminum plate 101 in the experimental structure shown contains approximately 3.5% aluminum.

[0482] Surprisingly, in Figure 13 In the case of the protective element 102 constructed in the test, although the content of conductive material was significantly lower, it was consistently measured at all test distances of 129 and 131 to be higher than that at the point where it was used. Figure 12 The test structure of aluminum plate 101 showed strong shielding attenuation.

[0483] It is speculated that the protective element 102 according to the present invention can be used to increase reflection. It is speculated that the increased reflection coefficient will help to improve the shielding attenuation effect.

[0484] It is assumed, in particular in the near field (wavelengths in the meter range), that a similar increase in the shielding properties can be achieved with a protective element according to Figure 14 It is possible to use a ferromagnetic shielding layer to guide (umleiten) the magnetic field components. It has been shown in this case that this is also possible without an electrical contact being established between the ferromagnetic shielding layer and the other shielding layer.

[0485] Figure 17 A protective element 102 is shown. The protective element 102 is an inverter housing element 161. However, it can also be used as a housing for other sources of electric, magnetic or electromagnetic fields and thus as a housing element 163 elsewhere.

[0486] Figure 17 The protective element shown comprises an inner space 157. The inner space 157 is surrounded by a side wall portion 171 which extends into the recess 197 up to a wall portion 173 from which the side wall portion 171 extends around the inner space 157. The side wall portion 171 extends from the wall portion 173 up to the protective element surface 119. The protective element surface 119 is configured at the flange 165 which extends up to the protective element edge 167. The side wall portion 171 separates the inner space 157 from the outer space 159 which surrounds the protective element 102.

[0487] Figure 17 The protective element 102 shown comprises a plurality of feedthrough regions 155. Through the feedthrough regions 155, connection devices 211, in particular electric conductors, for example cables 91 or cable bundles 193, can extend from the outer space 159 to an inverter which can be accommodated in the inner space 157.

[0488] Figure 18 A segment of an energy supply system 199 is shown which is shown schematically. The energy supply system 199 is an energy supply system 199 for a fully or partially electrically driven motor vehicle.

[0489] The energy supply system 199 comprises a plurality of conversion devices 183. The conversion devices 183 are shown only schematically.

[0490] One of the conversion devices 183 is an electric motor 187 in the segment of the energy supply system 199 shown.

[0491] The other conversion devices 183 are inverters 185.

[0492] The electric motor 187 forms a conversion device 183 since it is able to convert electrical energy into rotational motion.

[0493] The inverter 185 is a conversion device 183, since it is able to convert direct current, which can be supplied to the inverter 185, for example, from an electrochemical energy store, into alternating current. The alternating current can be supplied to the electric motor 187.

[0494] The energy supply system 199 comprises a connection device 211. This can be, in particular, a cable 191, which is connected to the conversion device 183. Figure 19 The associated cut plane 189 is indicated by a dashed line in the cross section shown. Figure 18 The associated cut plane 189 is indicated by a dashed line in the cross section shown.

[0495] The connection device 211 connects two conversion devices 183.

[0496] The connection device 211 comprises a cable 191. The cable can belong to a cable bundle 193, as shown. Figure 19

[0497] The connection device 211, the cable 191 and the cable bundle 193 form a source of an electric, magnetic or electromagnetic field, respectively.

[0498] The energy supply system 199 comprises a protection element 102. The protection element 102 is arranged at the connection device 211 for protecting an environment of the energy supply system 199 from an electric, magnetic or electromagnetic field.

[0499] For protecting the environment, the connection device 211 is received in an inner space 157 of the protection element 102. The inner space 157 is formed by a recess 197 of the protection element 102. The connection device 211 is received in the recess 197 of the protection element 102.

[0500] The inner space 157 represents a feedthrough region 155, which extends from one end of the protection element 102, which faces the inverter 185, to the other end of the protection element 102, which faces the electric motor 187.

[0501] The protection element 102 is shown in a highly simplified manner in Figure 17 , Figure 18 and Figure 19 , respectively. It is a protection element according to the application, respectively. However, the layer construction is not shown.

[0502] The protection element 102 of the energy supply system 199 or of the housing element 163 can be configured, for example, in the manner shown in one of Figures 6 to 14 .

[0503] Figure 18 and Figure 19 The protection element 102 shown has only a specific shape for shielding the cable-shaped source 195. The protection element 102 can be, for example, a cable shielding element 181.

[0504] ​It comprises a protection element surface 119. The protection element surface 119 serves for mounting the protection element at a carrier structure 144 of the frame 146 which serves as a ground portion 142. Due to the source 195 extending along the surface of the carrier structure 144, the protection element surface 119 serves at the same time for mounting the protection element 102 at the source 195 of an electric, magnetic or electromagnetic field.

[0505] Figure 20 A communication system is schematically shown. The communication system 201 is a communication system 201 for a fully or partially electrically driven motor vehicle.

[0506] The communication system 201 comprises a first communication means 203 having an interface 207 for emitting an electric, magnetic or electromagnetic signal 209. The first communication means 203 also has further interfaces 207.

[0507] The communication system 201 comprises a second communication means 205 having an interface 207 for receiving the electric, magnetic or electromagnetic signal 209 of the first communication means.

[0508] In the shown example, a cable connection for the transmission of the signal 209 from the interface 207 of the first communication means 203 to the interface 207 of the second communication means 205 is shown.

[0509] However, the signal 209 can also be transmitted wirelessly. Thus, for example, the first communication means 203 can have an interface 207 for emitting the signal 209 which transmits the signal 209 to the surrounding medium, for example air. The second communication means 205 can have an interface for receiving the signal 209 from the medium, for example air. Thus, for example, the interface 207 of the first communication means 203 can comprise a transmitter and the interface 207 of the second communication means 205 can comprise a receiver.

[0510] As the first communication means 203, the second communication means 205 can also have further interfaces 207 which are shown in Figure 20 .

[0511] The first communication means 203 can be, for example, a control instrument of the motor vehicle.

[0512] The second communication means 205 can be, for example, a control instrument of the motor vehicle.

[0513] Both communication means 203 and 205 can be, for example, control instruments of the motor vehicle.

[0514] Especially when the signal 209 is a signal 209 transmitted via a medium, for example air, the first communication means 203 can be a communication means of the motor vehicle and the second communication means 205 can be a communication means of another motor vehicle.

[0515] Figure 20 The communication system 201 shown includes a protection element 102, which in Figure 20 The diagram is shown schematically only. The protective element 102 is used to protect the first communication mechanism 203 from electric, magnetic, or electromagnetic fields. The layered structure of the protective element 102 is not shown.

[0516] Figure 20 In addition to the communication system 201, a conversion device 183 is also shown. The conversion device 183 may be, for example, an electric motor 187 or an inverter 185. A protective element 102 is used to protect the communication mechanism 203 from the electric, magnetic, or electromagnetic fields that may be generated by the conversion device 183.

[0517] Figure 21 A roughly simplified protective element 102 is shown, which may be, for example, an electrochemical energy storage device for a motor vehicle, a battery housing component 106 for a high-voltage battery device, or a housing tray.

[0518] exist Figure 21 The contact area 120 of the protective element 102 is also shown.

[0519] Figure 22 It shows Figure 21 The cross-section of the protective element 102 along the dotted line, in which further details are shown.

[0520] Additional Figure 22 The contact element 132 shown is deformable and elastic. The contact element 132 has fibers 268 contained in a fiber-containing material 270.

[0521] Contact area 120 is outer surface contact area 154, wherein outer surface contact area 154 is constructed on the outer surface 156 of shielding layer 114.

[0522] The fibrous material 270 of the contact element 132 extends around the compression zone 272. When the protective element 102 is assembled at the motor vehicle, the contact element 132 can be deformed, wherein the contact element 132 and its compression zone 272 are compressed, for example, by upsetting, especially along the assembly direction.

[0523] The contact element 132 shown is a hollow contact element 274, through which the compression zone 272 extends. The contact element 132 may be, for example, a fibrous material hose 278 or a woven fabric hose 276.

[0524] The protection element 102 has a positioning and / or orientation element 280, which in the example shown here is a positioning and / or orientation protrusion 282. The positioning and / or orientation element 280 is arranged at the contact area 120.

[0525] The fiber material hose 278, for example the woven fabric hose 276, is arranged at the positioning and / or orientation element 280, for example the positioning and / or orientation protrusion 282, and at the contact area 120.

[0526] The protection element has two sealing elements 180, which are each partially received into a sealing element receptacle 182. The sealing elements 180 can each independently contain or be made of, for example, an elastic sealing material, which is, for example, a natural or synthetic rubber, for example ethylene propylene diene rubber (EPDM), silicone rubber (VMQ) and / or fluoroelastomer (FKM or FPM), polyurethane (PU) and / or ethylene tetrafluoroethylene copolymer (ETFE).

[0527] Figure 23 A cross section of a further protection element 102 is shown, which differs from the protection element 102 shown in Figure 21 and Figure 22 in terms of the contact element 132. The contact element 132 is arranged at a deformable and / or elastic carrier 300. The contact element 132 extends from an inner side 302 of the carrier 300 to an outer side 306 of the carrier 300. The inner side 302 of the carrier 300 is at the same time a protection element side 304 of the carrier 300. It faces the contact area 120. The outer side 306 of the carrier is at the same time a device side 308 of the carrier 300, which faces away from the contact area 120.

[0528] The carrier 300 contains an elastic sealing material 338, from which the carrier 300 can preferably be made. The elastic sealing material 338 can be, for example, ethylene propylene diene rubber (EPDM).

[0529] An electrical contact bridged by the contact element 132 can accordingly be established between the contact area 120 and a device to be contacted, wherein one surface of the contact element 132 is in electrically conductive contact with the contact area 120 and the other surface of the contact element 132 can be in electrically conductive contact with the device at the outer side 306 of the carrier.

[0530] Figure 22 and Figure 23 The contact element 132 shown is accordingly electrically conductive.

[0531] Figure 23 The contact element 132 shown contains an electrically conductive material 310. The electrically conductive material 310 can be or contain a metallic material 312, in particular aluminum 314.

[0532] Figure 24 The protection element 102 shown in Figure 21 and Figure 22 is shown in a top view.

[0533] Figure 21 , Figure 22 and Figure 24 The protection element 102 shown in has a span 318 in a first direction 316 which is greater than a span 322 of the protection element 102 in a second direction 320 which is oriented in an orthogonal manner to the first direction 316.

[0534] The span 322 of the protection element 102 in the second direction 320 is greater than a span 326 of the protection element 102 in a third direction 324 which is oriented in an orthogonal manner to the first direction 316 and the second direction 320.

[0535] The first span 318 can be a length of the protection element 102. The second span 322 can be a width of the protection element 102. The third span 326 can be a depth of the protection element 102.

[0536] For example, the length can be about 2 m to 3 m, the width can be about 1 m to 2 m, and the depth can be about 5 cm to 50 cm.

[0537] It is apparent from Figure 23 that the contact element 132 extends around the carrier. It stretches from the inner side 302 and / or the protection element side 304 to the outer side 306 and / or the device side 308, respectively, at both sides, namely at the edge side 328 of the carrier 300 facing the edge 167 of the protection element and at the side 330 of the carrier 300 facing away from the edge 167 of the protection element.

[0538] Figure 25 , Figure 26 , Figure 29 and Figures 31 to 33 Further protection elements 102 are shown in a roughly simplified view, respectively, which comprise a contact element 132 designed in a different manner, respectively. The protection elements 102 shown there have a sealing element 180 and a sealing element receptacle 182, respectively, like the protection element 102 shown in Figures 22 to 24 At least one of the plurality of sealing elements 180 extends in the sealing element receptacle 182 at the protection element 102, respectively.

[0539] In Figure 25 , Figure 26 , Figure 29 and Figures 31 to 33In the protective element 102 shown, one of the sealing elements 180 correspondingly has a contact element 132 and a carrier 300. The contact element 132 is correspondingly arranged at the deformable and / or elastic carrier 300.

[0540] Alternatively, for example, it is equally possible that the contact element 132 has or forms a sealing element 180, for example, the sealing element 180 may be formed of a metal spring element serving as the contact element 132, which may have legs that can elastically deform relative to each other, one leg may abut against the device and the other leg may abut against the contact area.

[0541] Figure 28 and Figure 30 Contact element 132 is shown, which extends from the inner side 302 and / or the protective element side 304 to the outer side 306 and / or the device side 308 on only one side of the carrier 300.

[0542] For example, the contact element 132 can extend from the inner side 302 and / or the protective element side 304 to the outer side 306 and / or the device side 308 at the edge side 328 of the carrier 300. Figure 30 , Figure 31 When in the installed state, the edge side of the protective element 102 can face the edge 167 of the protective element.

[0543] Alternatively, the contact element 132 may extend from the inner side 302 and / or the protective element side 304 to the outer side 306 and / or the device side 308 on the side 330 away from the edge of the carrier 300. Figure 28 Combination Figure 31 The side facing away from the edge can be away from the edge of the protective element 167.

[0544] Advantageously, the contact element 132 and / or the carrier 300 may be coupled in or at the contact area 120. For example, the contact element 132 and / or the carrier 300 may be coupled in or at the contact area 120 in such a way that an electrical contact between the contact element 132 and the contact area 120 is present, established, or stabilized. Different possibilities exist for this. Some of these possibilities are... Figure 26 , Figure 27 , Figure 28 , Figure 30 , Figure 31 , Figure 32 and Figure 33 As shown in the image.

[0545] For example, such as Figures 31 to 33As shown separately, the contact element 132 and / or the carrier 300 can be bonded in or at the contact region 120 via a connection material 334 arranged in the connection region 332. Figure 28 and Figure 30 As shown separately, the contact element 132 and / or the carrier 300 can be bonded in or at the contact region 120 via a connection material 334 arranged in the connection region 332.

[0546] Alternatively, the contact element 132 and / or the carrier 300 can be bonded at the contact region 120 by means of an auxiliary element 336, which can be the sealing element 180, for example, in such a way that an electrical contact of the contact element 132 with the contact region 120 is present or can be established or stabilized.

[0547] This is shown in Figure 26 and Figure 27 For example, the auxiliary element 336 can be bonded at the contact region 120 or in other regions of the protective element 102, and the contact element 132 and / or the carrier 300 can be bonded at the auxiliary element 336 (as shown separately). Figure 26 . Figure 27 The opposite arrangement of the contact element 132 and the auxiliary element 336 arranged at the carrier 300 is shown in the unmounted state.

[0548] With regard to Figure 26 It should be noted that it can be particularly advantageous to use, instead of the carrier 300 provided with the contact element 132 and the sealing element 180 shown on the left side thereof, a carrier which is provided with the contact element 132 and can simultaneously serve as the sealing element 180, as shown in Figure 28 or in Figure 30 .

[0549] Figures 34 to 36 A cross-sectional view of an edge region of the protective element 102 is shown. The protective element 102 shown there has a base body 339, for example a plastic base body 340, respectively. The shielding layer 114 extends through the base body 339 in the protective element 102 shown in Figure 34 and Figure 35 In the protective element 102 shown in Figure 36 , the shielding layer 114 is arranged at the base body 339.

[0550] Figures 34 to 36 The protective element 102 shown respectively has a coupling auxiliary element 342. The coupling auxiliary element 342 can be a sleeve 344, for example. Screws or bolts can be guided through the coupling auxiliary element 342.

[0551] Figures 34 to 36 The protective element 102 shown respectively has a sealing element 180.

[0552] Figure 34 and Figure 35 The protection elements 102 shown in each case have a sealing element receptacle 182. In Figure 34 and Figure 35 In the protection elements 102 shown in each case, the sealing elements 180 are each received partially into the sealing element receptacles 182.

[0553] Figure 34 and Figure 35 It is shown that the protection elements 102 shown in each case have two positioning and / or orientation elements 280, which are each positioning and / or orientation protrusions 282.

[0554] The positioning and / or orientation elements 280 shown further to the right are arranged at the contact region.

[0555] The sealing elements extend along the two positioning and / or orientation elements 280 in the sealing element receptacles 182 located therebetween.

[0556] Figure 34 and Figure 35 It is shown that the contact regions can each be formed by a raised region 346, for example a fold 348.

[0557] Figure 35 The protection elements 102 shown have a pressurized region 350 in which the shielding layer 114 overlaps the coupling aid element 342.

[0558] Instead of Figure 34 and Figure 35 the sealing elements 180 and the sealing element receptacles 182 shown, Figure 36 the protection elements shown have a sealing element 180 in the form of a liquid seal 184.

[0559] Figure 37 A small segment of the protection element 102 is shown in a perspective sectional view. Figure 38 An enlarged segment of Figure 37 is shown in a roughly simplified schematic view. The cross section shown there has a cross section that is directed through the fitting recess 360. The screw or bolt shown in dashed lines can be directed through the mounting recess 360.

[0560] Figure 37 The protection elements 102 shown can be, for example, the bottom protection element 108 and / or the battery housing part 106. The contact region 120, which can be, for example, an outer surface contact region 154, can be offset laterally with respect to the segment shown. This is indicated in Figure 37 by the reference numerals 120 and 154.

[0561] For example, in Figure 2, Figure 3 , Figure 6 , Figure 9 , Figure 17 , Figure 21 , Figure 22 , Figure 23 , Figure 24 , Figure 25 , Figure 29 , Figure 31 , Figure 32 , Figure 33 , Figure 34 , Figure 35 and Figure 36 One of the protection elements 102 shown or indicated in whole or in part in Figure 37 or Figure 38 may have a fitting recess 360 and may have one or more of the features described herein in connection with or

[0562] may be present or configured in the protection element 102 shown in Figure 31 between the sealing element receptacle 182 and the protection element edge 167. Figure 37 A coupling aid element 342 shown in Figures 34 to 36 may be located in the fitting recess 360, which may have one or more of the features shown in Figure 37 and Figure 38 . In Figure 22 and Figure 23 fitting recesses located near the protection element edge 167 are shown, but are not provided with reference numerals thereat.

[0563] Figure 37 The protection element 102 shown in

[0564] The reinforcement zone 352 extends through the suspension zone 358.

[0565] Figure 37 The protection element 102 shown in may be a bottom protection element 108, for example. It can be fitted in the suspension zone 358 by means of the fitting recess 360 extending through the suspension zone 358 and a screw, not shown, at the protection element 108 shown in dashed lines.

[0566] Alternatively, it is possible for a component, for example a component of a high-voltage battery device, to be fitted, for example, in the protection element 102, for example the bottom protection element 108, in the suspension zone 358 by means of the fitting recess 360 extending through the suspension zone 358 and a screw or bolt joint.

[0567] However, the reinforcement region 352 can alternatively or additionally extend into other regions of the protective element 102 not shown in Figure 37 Fig. 1. For example, as shown in Figure 17 Fig. 2, the protective element can have a side wall portion 171 and an inner space 157, wherein the inner space 157 is enclosed by the side wall portion 171. The reinforcement region 352 can extend, for example, through at least one section of the side wall portion 171 or reinforce the entire side wall portion 171.

[0568] The reinforcing fibers 354 are glass fibers 362 in the protective element 102 shown in Figure 37 Fig. 1 and Figure 38 Fig. 2.

[0569] The reinforcement region 352 has a fiber scrim 358. The fiber scrim 358 is a glass fiber scrim 364. As shown in Figure 38 Fig. 3, it is multi-ply. The glass fibers 362 used as reinforcing fibers 354 are oriented unidirectionally in at least one ply 366 of the reinforcement region 352.

[0570] The glass fibers 362 used as reinforcing fibers 354 are oriented unidirectionally in at least one further ply 368 of the reinforcement region 352, wherein the orientation of the glass fibers 362 in the at least one further ply 368 of the reinforcement region 352 is different from the orientation of the reinforcing fibers 354, for example the glass fibers 362, in the at least one ply 366 of the reinforcement region 352. In the ply 366, the glass fibers 362 run along the sectioning plane. In the further ply 368, the glass fibers 362 run transversely to the sectioning plane. Figure 38 This is shown in a rough simplified manner, in particular with regard to the mass share of the reinforcing fibers 354, since a large part of the reinforcing fibers 354 has been omitted therein.

[0571] Figure 37 Fig. 4 and Figure 38 Fig. 5. The protective element 102 shown in both figures has a closure layer 370. In both figures, a section of the closure layer 370 is shown, which is arranged at the reinforcement region 352 and closes at least one section of the reinforcement region 352.

[0572] The at least one closed section of the reinforcement region 352 is a section of the suspension region 358, which extends around the fitting recess 360.

[0573] The closure layer 370 shown there contains no reinforcing fibers. It can comprise and / or be made of a thermoplastic, for example polypropylene.

[0574] Figure reference

[0575] 100 aluminum component

[0576] 101 aluminum sheet

[0577] 102 protective element

[0578] 103 mu alloy

[0579] 104 reinforcing rib

[0580] 105 foil

[0581] 106 battery housing part

[0582] 107 intermediate layer

[0583] 108 bottom protective element

[0584] 109 shielding member

[0585] 110 insulation layer

[0586] 111 contact area

[0587] 112 housing member

[0588] 113 shielding area

[0589] 114, 115 shielding layer

[0590] 116 aluminum foil

[0591] 117 layer composite area

[0592] 118 plastic layer

[0593] 119 protective element surface

[0594] 120 contact area

[0595] 124 reinforcing layer

[0596] 125 emitter

[0597] 126 fiber

[0598] 127 source

[0599] 128 organic sheet

[0600] 129, 131 distance

[0601] 130 protective layer

[0602] 132 contact element

[0603] 135 sensor

[0604] 137 receiver

[0605] 139 holding element

[0606] 141, 143, 145, 147, 149, 151, 153 area

[0607] 142 ground portion

[0608] 144 carrier structure

[0609] 146 frame

[0610] 148 plastic core

[0611] 150 cover ply

[0612] 152 cover layer

[0613] 154 outer surface contact region

[0614] 155 feed-through region

[0615] 156 outer surface

[0616] 157 inner space

[0617] 159 outer space

[0618] 161 inverter housing element

[0619] 163 housing element

[0620] 165 flange

[0621] 167 protective element edge

[0622] 171 side wall portion

[0623] 173 wall portion

[0624] 180 sealing element

[0625] 181 cable shielding element

[0626] 182 sealing element receptacle

[0627] 183 conversion device

[0628] 184 liquid seal

[0629] 185 inverter

[0630] 187 electric motor

[0631] 189 cutaway plane

[0632] 191 cable

[0633] 193 cable bundle

[0634] 195 source

[0635] 197 recess

[0636] 199 energy supply system

[0637] 201 communication system

[0638] 203 First Communications Agency

[0639] 205 Second Communications Agency

[0640] 207 interface

[0641] 209 signal

[0642] 211 Connecting Device

[0643] 213 Protection Component Thickness

[0644] 217, 219 thickness

[0645] 221 copper strip

[0646] 268 fiber

[0647] 270 Fiber-containing materials

[0648] 272 compression area

[0649] 274 Hollow Contact Element

[0650] 276 woven fabric hose

[0651] 278 fiber material hose

[0652] 280 positioning and / or orientation elements

[0653] 282 Orientation Protrusion

[0654] 300 load-bearing components

[0655] The inner side of the 302 bearing component

[0656] 304 bearing protective element side

[0657] 306 outer side of the load-bearing component

[0658] 308 bearing component device side

[0659] 310 conductive material

[0660] 312 metallic materials

[0661] 314 aluminum

[0662] 316 First Direction

[0663] 318 Span in the first direction

[0664] 320 Second Direction

[0665] 322 Span in the second direction

[0666] 324 Third-party

[0667] 326 span in third direction

[0668] 328 edge side of carrier

[0669] 330 side of carrier facing away from edge

[0670] 332 connection region

[0671] 334 connection material

[0672] 336 auxiliary element

[0673] 338 sealing material

[0674] 339 base body

[0675] 340 plastic base body

[0676] 342 coupling auxiliary element

[0677] 344 sleeve

[0678] 346 region of protrusion

[0679] 348 pleat

[0680] 350 pressurized region

[0681] 352 reinforced region

[0682] 354 reinforcing fiber

[0683] 356 fiber connection material

[0684] 358 hanging region

[0685] 360 fitting recess

[0686] 362 glass fiber

[0687] 364 glass fiber scrim

[0688] 366 lay-up of reinforced region

[0689] 368 further lay-up of reinforced region

[0690] 370 closure layer

[0691] 372 sealing ring

[0692] 374 sealing material

[0693] 376 sealing surface

[0694] The specific subject matter of the invention can be further described by the following sentences:

[0695] 1. A protective element (102) for improving electromagnetic compatibility, wherein the protective element (102) comprises:

[0696] - a first shielding layer (114) for protection from electric, magnetic or electromagnetic fields, and

[0697] - a second shielding layer (115) for protection from electric, magnetic or electromagnetic fields.

[0698] 2. The protection element (102) according to sentence 1, characterized in that

[0699] The protection element (102) comprises:

[0700] - a shielding region (113) in which the first shielding layer (114) and the second shielding layer (115) are spaced apart relative to one another.

[0701] 3. The protection element (102) according to sentence 1 or 2, characterized in that

[0702] An intermediate layer (107) is arranged between the first shielding layer (114) and the second shielding layer (115),

[0703] wherein the intermediate layer (107) is preferably arranged between the first shielding layer (114) and the second shielding layer (115) in the shielding region (113).

[0704] 4. The protection element (102) according to any of the preceding sentences, characterized in that

[0705] There is a layer-combining region (117) in which the first shielding layer (114) and the second shielding layer (115) are connected by means of the intermediate layer (107),

[0706] wherein the layer-combining region (117) is preferably present in the shielding region (113) in which the first shielding layer (114) and the second shielding layer (115) are connected by means of the intermediate layer (107).

[0707] 5. The protection element (102) according to any of the preceding sentences, characterized in that

[0708] The shielding layers (114, 115) are electrically conductive.

[0709] 6. The protection element (102) according to any of the preceding sentences, characterized in that

[0710] At least one of the shielding layers (114, 115), for example the first shielding layer (114), has a magnetic permeability value µ r of at least 10, for example at least 5000.

[0711] 7. The protection element (102) according to any of the preceding sentences, preferably according to sentence 6, characterized in that

[0712] At least one of the shielding layers (114, 115), for example the first shielding layer (114), is ferromagnetic.

[0713] 8. The protection element (102) according to any of the preceding sentences, preferably according to sentence 6 or 7, characterized in that

[0714] At least one of the shielding layers (114, 115), for example the first shielding layer (114), comprises or is formed by a Mu-metal (103).

[0715] 9. The protection element (102) according to any of the preceding sentences, preferably according to any of the preceding sentences 1 to 5, characterized in that the protection element (102) comprises:

[0716] - a contact region (111) in which the first shielding layer (114) and the second shielding layer (115) are in electrical contact or can be brought into electrical contact between the first shielding layer (114) and the second shielding layer (115).

[0717] 10. The protection element (102) according to any of the preceding sentences, characterized in that at least one of the shielding layers (114, 115), for example the second shielding layer (115), comprises:

[0718] - a metal alloy, wherein the metal alloy can be, for example, a metal alloy based on aluminum, copper, iron or silver;

[0719] - an electrically conductive carbon material, wherein the electrically conductive carbon material can comprise, for example, carbon fibers or graphite;

[0720] - a composite of a metal and a textile material, preferably a metal-coated textile material, wherein the textile material is preferably a knit, a woven fabric, a scrim, a weft knit, a braid or a nonwoven, for example a composite of an aluminum foil and a PET nonwoven;

[0721] - a foil, preferably a metal foil, for example an aluminum foil;

[0722] - a metal sheet;

[0723] - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be, for example, a knit, a woven fabric, a scrim, a weft knit or a braid; and / or

[0724] - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be, for example, a nonwoven.

[0725] 11. The protection element (102) according to any of the preceding sentences, characterized in that

[0726] at least one of the shielding layers (114, 115), for example the second shielding layer (115), is present as

[0727] - a foil (105),

[0728] - a sheet material,

[0729] - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be, for example, a woven fabric, a weft-knitted fabric or a knitted fabric, or as

[0730] - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be, for example, a nonwoven fabric.

[0731] 12. The protection element (102) according to any of the preceding sentences, characterized in that

[0732] at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), is selected from:

[0733] - an aluminum foil (116),

[0734] - an aluminum grid,

[0735] - a stainless steel grid,

[0736] - a bronze grid,

[0737] - a copper grid,

[0738] - a plastic nonwoven fabric (for example a PET nonwoven fabric) with an applied aluminum film,

[0739] - a plastic nonwoven fabric (for example a PET nonwoven fabric) which is coated on one side with copper,

[0740] - a unidirectional tape containing carbon fibers,

[0741] - a nonwoven fabric composed of recycled carbon fibers,

[0742] - a graphite foil and

[0743] - a polymer (for example polypropylene) combined with an aluminum grid.

[0744] 13. The protection element (102) according to any of the preceding sentences, characterized in that

[0745] At least one of the shielding layers (114, 115), for example at least the second shielding layer (115), comprises a metal, for example aluminum, copper, iron and / or silver,

[0746] It is preferred that at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), comprises aluminum.

[0747] 14. The protection element (102) according to any of the preceding sentences, characterized in that

[0748] The thickness of at least one of the shielding layers (114, 115), for example the thickness of the second shielding layer (115), is at most 3 mm, for example 0.001 to 0.7 mm.

[0749] 15. The protection element (102) according to any of the preceding sentences, characterized in that

[0750] At least one of the shielding layers (114, 115), for example at least the second shielding layer (115), is an aluminum foil (116) or an aluminum sheet.

[0751] 16. The protection element (102) according to any of the sentences 10 to 15, characterized in that

[0752] The foil (105), metal foil or aluminum foil (116) is bound at the adjacent layer, for example the intermediate layer (107), by means of an adhesion promoter.

[0753] 17. The protection element (102) according to any of the preceding sentences, characterized in that

[0754] At least one of the shielding layers (114, 115) is formed on the surface of the base layer,

[0755] wherein at least one of the shielding layers (114, 115) on the surface is preferably formed by deposition from the surrounding medium,

[0756] wherein at least one of the shielding layers (114, 115) can be vapor-deposited on the surface, for example.

[0757] 18. The protection element (102) according to any of the preceding sentences, characterized in that the protection element (102) comprises:

[0758] - a protection element surface (119) for mounting the protection element at a device that can be disturbed by an electric, magnetic or electromagnetic field, or at a source of an electric, magnetic or electromagnetic field.

[0759] 19. An energy supply system (199), for example for a motor vehicle that is driven completely or partially electrically, wherein the energy supply system (199) comprises:

[0760] - at least two conversion devices (183),

[0761] - a connection device (211) connecting the at least two conversion devices (183), and

[0762] - at least one protection element (102) according to any one of the sentences 1 to 18 at at least one of the at least two conversion devices (183) and / or at the connection device (211) for protecting an environment of the energy supply system (199) from electric, magnetic or electromagnetic fields,

[0763] It is preferred here that, for the protection of the environment, the connection device (211) and / or at least one of the at least two conversion devices (183) is / are completely or partially received into a recess (197) or an inner space (157) of the at least one protection element (102).

[0764] 20. A communication system (201), for example for a fully or partially electrically driven motor vehicle, wherein the communication system (201) comprises:

[0765] - a first communication means (203) having an interface (207) for emitting electric, magnetic or electromagnetic signals (209),

[0766] - a second communication means (205) having an interface (207) for receiving the electric, magnetic or electromagnetic signals (209) of the first communication means, and

[0767] - at least one protection element (102) according to any one of the sentences 1 to 18 for protecting at least one of the communication means (203, 205) from electric, magnetic or electromagnetic fields,

[0768] It is preferred here that, for the protection of at least one of the communication means (203, 205) from electric, magnetic or electromagnetic fields, at least one of the communication means (203, 205) is completely or partially received into a recess (197) or an inner space (157) of the protection element (102).

[0769] 21. A motor vehicle, for example a fully or partially electrically driven motor vehicle, wherein the motor vehicle comprises:

[0770] - a source (195) of electric, magnetic or electromagnetic fields, wherein the source (195) advantageously can be a conversion device (183), for example an electric motor (187) or an inverter (185), or a connection device (211) of an energy supply system (199) of the motor vehicle, wherein the connection device (211) can connect two conversion devices (183) to one another,

[0771] - a device that can be disturbed by electric, magnetic or electromagnetic fields, wherein the device that can be disturbed by electric, magnetic or electromagnetic fields can be or comprise a communication mechanism (203, 205) of a motor vehicle, and

[0772] - at least one protection element (102) according to any one of the sentences 1 to 18, wherein the protection element (102) is arranged completely or partially between the source (195) and the device that can be disturbed by electric, magnetic or electromagnetic fields.

Claims

1. Protection element (102) for improving electromagnetic compatibility, wherein the protection element (102) comprises: - a shielding layer (114), which can be, for example, a first shielding layer (114), for protection from electric, magnetic or electromagnetic fields.

2. Protection element (102) according to claim 1, characterized in that the protection element (102) comprises a contact region (120), wherein it can be advantageous that an electrical contact can be established between the shielding layer (114) and a device, in which the protection element (102) can be combined, for example fitted, by means of the contact region (120).

3. Protection element (102) according to claim 1 or 2, characterized in that the protection element (102) comprises: - a second shielding layer (115) for protection from electric, magnetic or electromagnetic fields.

4. Protection element (102) according to claim 2 or 3, characterized in that an electrical contact can be established between the shielding layer (114) of the protection element and / or at least one of the shielding layers (114, 115) of the protection element (102) and a device, in which the protection element can be combined, for example fitted, by means of the contact region (120).

5. Protection element (102) according to any one of claims 2 to 4, characterized in that - the contact region (120) is a surface of the shielding layer (114) and / or a surface of at least one of the shielding layers (114, 115); and / or - the contact region (120) is located at a surface of the shielding layer (114) and / or at a surface of at least one of the shielding layers (114, 115); and / or - the contact region (120) is an outer surface contact region (154), wherein the outer surface contact region is configured at an outer surface (156) of the shielding layer (114) and / or at an outer surface (156) of at least one of the shielding layers (114, 115).

6. Protection element (102) according to any one of the preceding claims, characterized in that the protection element (102) comprises a contact element (132), wherein it can be advantageous that - an electrical contact, in particular a direct or indirect electrical contact, can be established or stabilized between the contact region (120) and the device by means of the contact element (132), and / or - an electrical contact can be established between the contact region and the device, which is bridged by the contact element (132), wherein it can be advantageous that one surface of the contact element (132) is in electrically conductive contact with the contact region (120) and another surface of the contact element (132) can be in electrically conductive contact with the device, wherein the contact element (132) is electrically conductive.

7. Protection element (102) according to claim 6, characterized in that the contact element (132) is deformable and / or elastic.

8. Protection element (102) according to claim 6 or 7, characterized in that The contact element (132) is arranged at a carrier (300), wherein the carrier (300) can advantageously be deformable and / or elastic, wherein it can be advantageous that the contact element (132) in at least one section of the carrier (300) extends from an inner side (302) and / or a protection element side (304) of the carrier, which can in particular face the contact region (120), to an outer side (306) and / or a device side (308) of the carrier (300), which can in particular face away from the contact region (120).

9. Protection element (102) according to one of claims 6 to 8, characterized in that the contact element (132) comprises or is made of an electrically conductive material (310), wherein the electrically conductive material (310) can advantageously be a metallic material (312), which can in particular comprise aluminum (314).

10. Protection element (102) according to claim 8 or 9, characterized in that the contact element (132) in at least one section of the carrier (300) extends at the carrier (300) only on one side, for example - at an edge side (328) of the carrier (300), which can face a protection element edge (167), or - at a side (330) of the carrier (300), which can face away from a protection element edge (167), from the inner side (302) and / or the protection element side (304) to the outer side (306) and / or the device side (308).

11. Protection element (102) according to one of the preceding claims, characterized in that - the protection element (102) has a sealing element (180) and / or a sealing element receptacle (182), into which the sealing element (180) can be received completely or partially, wherein it can be advantageous that the protection element (102) has the sealing element (180) and the sealing element receptacle (182), wherein it can be advantageous that the sealing element (180) is received completely or partially into the sealing element receptacle (182) and / or extends in the sealing element receptacle (182) at the protection element (102); and / or - the protection element (102) has a sealing element (180), which can advantageously be a liquid seal (184).

12. Protection element (102) according to one of claims 6 to 11, characterized in that - the sealing element (180) has the contact element (132) and / or the carrier (300); and / or - the carrier (300) is deformable and / or elastic, wherein it can be advantageous that the contact element (132) is arranged at a deformable and / or elastic carrier (300); and / or - the contact element (132) has or forms the sealing element (180).

13. Protection element (102) according to one of claims 6 to 12, characterized in that the contact element (132) and / or the carrier (300) are / is bonded in the contact region (120) or at the contact region, wherein it can be advantageous if the contact element (132) and / or the carrier (300) are / is bonded in the contact region (120) or at the contact region in such a way that an electrical contact of the contact element (132) with the contact region (120) is present or can be established or stabilized.

14. Protection element (102) according to claim 13, characterized in that the contact element (132) and / or the carrier (300) are / is bonded in the contact region (120) or at the contact region via a connection material (334) arranged in a connection region (332).

15. Protection element (102) according to claim 13 or 14, characterized in that the contact element (132) and / or the carrier (300) are / is bonded at the contact region (120) by means of an auxiliary element (336), which can be, for example, a sealing element (180), in such a way that an electrical contact of the contact element (132) with the contact region (120) is present or can be established or stabilized, wherein it can be advantageous if the auxiliary element (336) is bonded at the contact region (120) or in other regions of the protection element (102) and the contact element (132) and / or the carrier (300) are / is bonded at the auxiliary element (336), wherein it can be advantageous if - the auxiliary element (336) is bonded at the contact region (120) or in other regions of the protection element (102) via a connection material (334) arranged in a connection region (332); and / or - the contact element (132) and / or the carrier (300) are / is bonded at the auxiliary element (336) via a connection material (334) arranged in a connection region (332).

16. Protection element (102) according to one of claims 8 to 15, characterized in that the protection element has at least two sealing elements (180), wherein - one of the sealing elements (180) is a sealing element (180) according to claim 11, 12 or 15, and / or - one of the sealing elements (180) is arranged closer to a protection element edge (167) than the other of the sealing elements (180).

17. Protection element (102) according to one of claims 8 to 16, characterized in that the carrier (300) and / or the sealing elements (180) and / or at least one of the sealing elements (180) comprise / comprises an elastic sealing material (338) and / or are / is made of an elastic sealing material (338), wherein it can be advantageous if the elastic sealing material (338) comprises or consists of - a silicone, - natural or synthetic rubbers, such as ethylene propylene diene rubber, silicone rubber and / or fluoro rubber, - polyurethane, and / or - ethylene-tetrafluoroethylene copolymer.

18. Protection element (102) according to any one of the preceding claims, characterized in that the protection element (102) has a positioning and / or orientation element (280), which can be or have, for example, a positioning and / or orientation protrusion (282), wherein it can be advantageous that - at least one section of the positioning and / or orientation element (280) can be arranged at at least one section of the contact region (120); and / or - at least one section of the carrier (300) and / or the sealing element (180) and / or at least one of the sealing elements (180) and / or the contact element (132) and / or the connection region (332) extends along at least one section of the positioning and / or orientation element (280).

19. Protection element (102) according to any one of the preceding claims, characterized in that the protection element (102) has a plastic base body (340), wherein - the shielding layer (114) is arranged at the plastic base body (340) and / or extends through the plastic base body (340), and / or - at least one of the shielding layers (114, 115) is arranged at the plastic base body (340) and / or extends through the plastic base body (340).

20. Protection element (102) according to any one of the preceding claims, characterized in that the protection element (102) has a reinforcement region (352), wherein the reinforcement region (352) has reinforcement fibers (354) and a fiber connection material (356), wherein in the reinforcement region (352) at least a portion of the reinforcement fibers (354) is connected with the fiber connection material (356).

21. Protection element (102) according to any one of the preceding claims, characterized in that the protection element (102) is a bottom protection element (108) and / or a battery housing part (106).

22. Protection element (102) according to claim 20 or 21, characterized in that the reinforcement region (352) is or extends into or through a suspension region (358), wherein it can be advantageous that - the protection element (102) and / or the bottom protection element (108) and / or the battery housing part (106) can be coupled, for example assembled, at the device, for example by means of a fitting recess (360) extending through the suspension region (358) and a screw or bolt, in the suspension region (358); and / or - a part, for example a part of a high-voltage battery device, can be coupled, for example assembled, at the protection element (102) and / or the bottom protection element (108) and / or the battery housing part (106), for example by means of a fitting recess (360) extending through the suspension region (358) and a screw or bolt, in the suspension region (358).

23. The protection element (102) according to any one of claims 20 to 22, characterized in that the protection element (102) and / or the bottom protection element (108) and / or the battery housing part (106) has a side wall portion (171) and an inner space (157), wherein the inner space (157) is completely or partially surrounded by the side wall portion (171), wherein the reinforcement zone (352) extends through at least one section of the side wall portion (171).

24. The protection element (102) according to any one of claims 20 to 23, characterized in that a mass share of the reinforcement fibers (354) in the reinforcement zone (352) is at least 70%, for example at least 77.5%.

25. The protection element (102) according to any one of claims 20 to 24, characterized in that the reinforcement fibers (354) are glass fibers (362).

26. The protection element (102) according to any one of claims 20 to 25, characterized in that the reinforcement zone (352) has a fiber scrim (358), for example a glass fiber scrim (364), and / or the reinforcement fibers (354), for example the glass fibers (362), are unidirectionally oriented in at least one ply (366) of the reinforcement zone (352).

27. The protection element (102) according to claim 26, characterized in that the reinforcement fibers (354), for example the glass fibers (362), are unidirectionally oriented in at least one further ply (368) of the reinforcement zone (352), wherein the orientation of the reinforcement fibers (354), for example the glass fibers (362), in at least one of the further plies (368) of the reinforcement zone (352) is different from the orientation of the reinforcement fibers (354), for example the glass fibers (362), in at least one of the plies (366) of the reinforcement zone (352).

28. The protection element (102) according to claim 27, characterized in that the protection element (102) has a closing layer (370), wherein it can be advantageous that at least one section of the closing layer (370) is arranged at the reinforcement zone (352) and closes at least one section of the reinforcement zone (352), wherein it can be advantageous that at least one closed section of the reinforcement zone (352) - is the suspension zone (358) or a section of the suspension zone (358); and / or - extends around the assembly recess (360).

29. The protection element (102) according to claim 28, characterized in that the closing layer (370) does not contain reinforcement fibers or a mass share of the reinforcement fibers (354) in the closing layer (370) is smaller than a mass share of the reinforcement fibers (354) in the reinforcement zone (352).

30. The protection element (102) according to any one of claims 3 to 29, characterized in that the protection element (102) comprises: - a shield region (113) in which the first shield layer (114) and the second shield layer (115) are spaced apart relative to one another.

31. The protection element (102) according to any one of claims 3 to 30, characterized in that an intermediate layer (107) is arranged between the first shield layer (114) and the second shield layer (115), wherein the intermediate layer (107) is preferably arranged between the first shield layer (114) and the second shield layer (115) in the shield region (113).

32. The protection element (102) according to any one of the preceding claims 3 to 31, characterized in that a layer-combining region (117) exists in which the first shield layer (114) and the second shield layer (115) are connected by means of the intermediate layer (107), wherein the layer-combining region (117) preferably exists in the shield region (113) in which the first shield layer (114) and the second shield layer (115) are connected by means of the intermediate layer (107).

33. The protection element (102) according to any one of the preceding claims, characterized in that one of the shield layers (114) is electrically conductive and / or a plurality of the shield layers (114, 115) are electrically conductive.

34. The protection element (102) according to any one of the preceding claims, characterized in that The shielding layer (114) and / or at least one of the shielding layers (114, 115), e.g. the first shielding layer (114), has a magnetic permeability value µ r of at least 10, e.g. at least 5000.

35. The protection element (102) according to any one of the preceding claims, preferably according to claim 34, characterized in that at least one of the shield layers (114, 115), for example the first shield layer (114), is ferromagnetic.

36. The protection element (102) according to any one of the preceding claims, preferably according to claim 34 or 35, characterized in that at least one of the shield layers (114, 115), for example the first shield layer (114), comprises or is formed from a Mu-metal (103).

37. The protection element (102) according to any one of claims 3 to 36, preferably according to any one of claims 3 to 33, characterized in that the protection element (102) comprises: - a contact region (111) in which the first shield layer (114) and the second shield layer (115) are in electrical contact or in which electrical contact can be established between the first shield layer (114) and the second shield layer (115).

38. The protection element (102) according to any one of the preceding claims, characterized in that at least one of the shield layers (114, 115), for example at least the second shield layer (115), comprises: - a metal alloy, wherein the metal alloy can be, for example, a metal alloy based on aluminum, copper, iron or silver; - an electrically conductive carbon material, wherein the electrically conductive carbon material can comprise, for example, carbon fibers or graphite; - a composite of a metal and a textile material, preferably a metal-coated textile material, wherein the textile material can preferably be a knit, a woven, a scrim, a weft knit, a knit or a nonwoven, for example a composite of an aluminum foil and a PET nonwoven; - a foil, preferably a metal foil, for example an aluminum foil; - a metal expanded sheet; - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be, for example, a knit, a woven, a scrim, a weft knit or a knit; and / or - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be, for example, a nonwoven.

39. The protection element (102) according to any one of the preceding claims, characterized in that the shielding layer (114) and / or at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), is present as - a foil (105), - a sheet, - a regular fiber-containing planar construct, wherein the regular fiber-containing planar construct can be, for example, a woven, a weft knit or a knit, or as - an irregular fiber-containing planar construct, wherein the irregular fiber-containing planar construct can be, for example, a nonwoven.

40. The protection element (102) according to any one of the preceding claims, characterized in that the shielding layer (114) and / or at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), is selected from: - an aluminum foil (116), - an aluminum grid, - a stainless steel grid, - a bronze grid, - a copper grid, - a plastic nonwoven (for example a PET nonwoven) with an applied aluminum film, - a plastic nonwoven (for example a PET nonwoven) coated on one side with copper, - a unidirectional tape containing carbon fibers, - a nonwoven composed of recycled carbon fibers, - a graphite foil and - a polymer (for example polypropylene) bonded to an aluminum grid.

41. The protection element (102) according to any one of the preceding claims, characterized in that the shielding layer (114) and / or at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), comprises a metal, for example aluminum, copper, iron and / or silver, wherein it is preferred that at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), comprises aluminum.

42. The protection element (102) according to any one of the preceding claims, characterized in that the thickness of the shielding layer (114) and / or the thickness of at least one of the shielding layers (114, 115), for example the thickness of the second shielding layer (115), is at most 3 mm, for example 0.001 mm to 0.7 mm.

43. The protection element (102) according to any one of the preceding claims, characterized in that The shielding layer (114) and / or at least one of the shielding layers (114, 115), for example at least the second shielding layer (115), is an aluminum foil (116) or an aluminum sheet.

44. Protection element (102) according to any one of claims 38 to 43, characterized in that The foil (105), metal foil or aluminum foil (116) is bonded at adjacent layers, for example the intermediate layer (107), by means of an adhesion promoter.

45. Protection element (102) according to any one of the preceding claims, characterized in that The shielding layer (114) and / or at least one of the shielding layers (114, 115) is formed on a surface of a base layer wherein the shielding layer (114) and / or at least one of the shielding layers (114, 115) is preferably formed on the surface by deposition from the surrounding medium, wherein the shielding layer (114) and / or at least one of the shielding layers (114, 115) can be vapor-deposited on the surface, for example.

46. Protection element (102) according to any one of the preceding claims, characterized in that The protection element (102) comprises: - a protection element surface (119) for mounting the protection element at a device that can be disturbed by an electric, magnetic or electromagnetic field, or at a source of an electric, magnetic or electromagnetic field.

47. Energy supply system (199), for example for a completely or partially electrically driven vehicle, wherein the energy supply system (199) comprises: - at least two conversion devices (183), - a connection device (211) which connects at least two of the conversion devices (183), and - at least one protection element (102) according to any one of claims 1 to 46 at at least one of the conversion devices (183) and / or at the connection device (211) for protecting an environment of the energy supply system (199) from an electric, magnetic or electromagnetic field, wherein it is preferable for the purpose of protecting the environment that at least one of the conversion devices (183) and / or the connection device (211) is completely or partially received in an inner space (157) or recess (197) of at least one of the protection elements (102).

48. Communication system (201), for example for a completely or partially electrically driven motor vehicle, wherein the communication system (201) comprises: - a first communication means (203) with an interface (207) for emitting an electric, magnetic or electromagnetic signal (209), - a second communication means (205) with an interface (207) for receiving an electric, magnetic or electromagnetic signal (209) of the first communication means, and - at least one protection element (102) according to any one of claims 1 to 46 for protecting at least one of the communication means (203, 205) from an electric, magnetic or electromagnetic field, wherein it is preferable for the purpose of protecting the environment that at least one of the conversion devices (183) and / or the connection device (211) is completely or partially received in an inner space (157) or recess (197) of at least one of the protection elements (102). It is preferred that, in order to protect at least one of the communication means (203, 205) from electric, magnetic or electromagnetic fields, at least one of the communication means (203, 205) is completely or partially received into the interior space (157) or recess (197) of the protection element (102).

49. Motor vehicle, for example fully or partially electrically driven motor vehicle, wherein the motor vehicle comprises: - a source (195) of electric, magnetic or electromagnetic fields, wherein the source (195) can advantageously be a conversion device (183), for example an electric motor (187) or an inverter (185), or a connection device (211) of an energy supply system (199) of the motor vehicle, wherein the connection device (211) can connect two conversion devices (183) to each other, - a device that can be disturbed by electric, magnetic or electromagnetic fields, wherein the device that can be disturbed by electric, magnetic or electromagnetic fields can for example be or comprise a communication means (203, 205) of the motor vehicle, and - at least one protection element (102) according to any one of claims 1 to 46, wherein the protection element (102) is completely or partially arranged between the device that can be disturbed by electric, magnetic or electromagnetic fields and the source (195).

50. Method for producing a protection element (102), a bottom protection element (108) and / or a battery housing part (106) according to any one of claims 1 to 46, wherein the closing of the surface area of the base body of the protection element (102), of the bottom protection element (108) and / or of the battery housing part (106) is effected by applying a plastic-containing closing material.

51. Method according to claim 50, characterized in that the base body is formed from a plurality of initial materials which are applied in a face-like manner partially or completely on top of one another in a forming tool, wherein it can be advantageous if at least one of the initial materials is fiber-reinforced, wherein the plastic-containing closing material is brought into the forming tool together and / or the surface area is closed by the plastic-containing closing material in the forming tool directly when the fiber-reinforced base body is produced.

52. Method according to claim 50 or 51, characterized in that the base body is a fiber-reinforced base body and the surface area is porous and / or parts of the reinforcing fibers of the base body stretch to the surface area of the base body.

53. Method according to any one of claims 50 to 52, characterized in that the plastic-containing closing material is a plastic foil.

54. Method according to any one of claims 50 to 52, characterized in that the plastic-containing closing material contains reinforcing fibers.

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