WO2018145780A1 - Use of a material, utility object, preferably electrotechnical device, and composite material - Google Patents

Abstract

The invention relates to the use of a material for shielding against electrical and magnetic fields and/or for a heat distribution or heat discharge, said material being characterized in that the material is designed as a composite material comprising a first layer (1) made of a ferromagnetic material and at least one second layer (2) made of an electrically conductive material. The invention also relates to a utility object, in particular an electrotechnical device, preferably a power electronics device, which is characterized in that the utility object comprises a material that is designed as a composite material, and the composite material has a first layer (1) made of a ferromagnetic material and at least one second layer (2) made of an electrically conductive material.

Description

 Use of a material, commodity, preferably electrical equipment, as well as composite material

The present invention relates to the use of a material according to the preamble of claim 1, a commodity, in particular electrotechnical device, preferably a

Power electronics device, according to the preamble of

Claim 7, and a composite material according to the preamble of claim 16 or 17.

A shielding of everyday objects, in particular electrical equipment, essentially serves to keep electric and / or magnetic fields away from them or, conversely, to protect the environment from the fields emanating from the commodity.

In particular, in power electronics devices, such as

for example, smart devices (mobile phones, tablet computers, etc.), automotive electronics, industrial electronics (robots, automated production lines, etc.) but also for smartphone cases,

Tablet cushions or child bed liners are in need of

improved shielding of high-frequency and low-frequency signals as well as other electromagnetic radiation for the protection of the human body or of electronics. In addition, there is a particular need for protection against thermal hotspots and in particular optical defects.

The object of the present invention is accordingly to the use of a material for shielding

To propose utensils with regard to electrical and / or magnetic fields, which also has a good Heat distribution and heat dissipation can ensure and thus can counteract hotspots.

According to the invention this object is achieved by the use of a material having the characterizing features of claim 1. Due to the fact that the material is a

Composite is, comprising at least a first layer of a ferromagnetic material and a second layer of an electrically conductive material, the disadvantages outlined above can be turned off, but at least reduced.

In particular, the layer of a ferromagnetic material provides good shielding against magnetic fields. In particular, the layer of an electrically conductive material provides good shielding against electric fields. The combination of the two layers provides a good thermal conductivity, so that a good heat distribution and heat dissipation can be ensured and hotspots can be avoided.

Further advantageous embodiments of the proposed invention will become apparent in particular from the features of the dependent claims. The objects or features of the various claims can basically be combined with each other arbitrarily.

In an advantageous embodiment of the proposed invention can be provided that the composite material with a

Coating is equipped, in particular, as

Nanocoating, anodizing, painting, galvanic

Finishing with tin, nickel, copper, silver, zinc, metallic, carbonaceous or ceramic coating or others

Coating can be configured. By such

Coating can further enhance the thermal conductivity of the material improves and in particular improves the heat dissipation and the formation of hotspots can be avoided.

In a further advantageous embodiment of the proposed invention, it can be provided that the coating is a surface coating of the composite material. By means of such a surface coating, optical defects can preferably be masked and accordingly an aesthetically pleasing surface can be created.

In a further advantageous embodiment of the proposed invention can be provided that as the material for the first

Layer of a ferromagnetic material, a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used. Such a layer of one or more of the aforementioned

Materials are ideal for forming a layer of ferromagnetic material.

In a further advantageous embodiment of the proposed invention it can be provided that a material such as copper, silver, aluminum, nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials as material for the second layer of an electrically conductive material is used. Such a layer of one or more of the aforementioned materials is outstandingly suitable for forming a layer of an electrically conductive material.

In a further advantageous embodiment of the proposed invention can be provided that the first layer and the second layer are firmly bonded together, preferably by means of plating, in particular roll cladding. The production of the Composite by means of plating allows a very strong connection of the aforementioned components.

In a further advantageous embodiment of the proposed invention can be provided that the composite material is equipped with a Peltier element. As a result, heat, for example, waste heat and / or the body heat of a user or a periphery, other heat, etc., converted into usable electricity and, for example, electricity consuming

Components of a commodity are supplied. This can for example lead to an improvement in the efficiency of a commodity.

A further object of the present invention is an improved article of daily use, in particular an improved electrotechnical device, preferably

 Power electronics device to propose, in particular to propose a utility object having an improved shielding with respect to electrical and / or magnetic fields and in which a good heat dissipation is ensured.

According to the invention this object is achieved by a

Commodity with the characterizing features of claim 8 solved. Characterized in that the commodity is equipped with a material configured as a composite material, comprising at least a first layer of a

ferromagnetic material and a second layer of an electrically conductive material, the above-outlined disadvantages can be turned off, but at least reduced. In particular, the layer of a ferromagnetic material offers a good

Shielding against magnetic fields. In particular, the layer of an electrically conductive material provides good shielding against electric fields. The combination of the two layers provides a good thermal conductivity, so that a good heat dissipation can be guaranteed and hotspots can be avoided.

Further advantageous embodiments of the proposed invention will become apparent in particular from the features of the dependent claims. The objects or features of the various claims can basically be combined with each other arbitrarily.

In an advantageous embodiment of the proposed invention can be provided that the composite material with a

Coating is equipped, in particular, as

Nanocoating, anodizing, painting, galvanic

Finishing with tin, nickel, copper, silver, zinc, metallic, carbonaceous or ceramic coating or others

Coating can be configured. By such

Coating can further improve the thermal conductivity of the composite and in particular improves the heat dissipation and the formation of hotspots can be avoided.

In a further advantageous embodiment of the proposed invention, it can be provided that the coating is a surface coating of the composite material. By means of such a surface coating, optical defects can preferably be masked and accordingly an aesthetically pleasing surface can be created.

In a further advantageous embodiment of the proposed invention can be provided that as the material for the first

Layer of a ferromagnetic material, a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used. A Such layer of one or more of the aforementioned

Materials are ideal for forming a layer of ferromagnetic material.

In a further advantageous embodiment of the proposed invention it can be provided that a material such as copper, silver, aluminum, nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials as material for the second layer of an electrically conductive material is used. Such a layer of one or more of the aforementioned materials is outstandingly suitable for forming a layer of an electrically conductive material.

In a further advantageous embodiment of the proposed invention can be provided that the first layer and the second layer are firmly bonded together, preferably by means of plating, in particular roll cladding. The production of the

Composite by means of plating allows a very strong connection of the aforementioned components.

In a further advantageous embodiment of the proposed invention can be provided that it is in the

Utility item to an electrotechnical device, in particular a power electronics device is. For example, the commodities may be, in particular, smart devices

(Mobile phones, tablet computers, etc.), automotive electronics,

Industrial electronics (robots, automated production lines, etc.) act. But it is also conceivable that this is

Smartphone cases, tablet cushions, children's bed linens, etc. It is conceivable in principle any device or any application in which a shield for or against electrical and / or

magnetic fields necessary or at least advantageous and at which, in particular selectively, heat is generated, which must be dissipated or is advantageously dissipate. The term

Utility object is to be understood accordingly far and can, for example, facilities and rooms or their

Room boundaries, such as walls, etc. include.

In a further advantageous embodiment of the proposed invention can be provided that the composite material is equipped with a Peltier element. As a result, heat, for example, waste heat and / or the body heat of a user or a periphery, other heat, etc. converted into usable electric power and, for example, electricity consuming

Components of a commodity are supplied. This can improve the efficiency of a

Guide the utility.

Another object of the present invention is to propose an improved composite material, in particular to propose a composite material suitable for shielding

Utility items is suitable in terms of electrical and / or magnetic fields, also can ensure good heat distribution and heat dissipation and can be converted with the heat into electricity.

According to the invention this object is achieved by a composite material with the characterizing features of claim 16.

Characterized in that the composite material, comprising a first layer of a ferromagnetic material and at least one second layer of an electrically conductive material, is equipped with a Peltier element, heat, such as waste heat and / or the body heat of a user or a periphery, other heat, etc. converted into usable electricity and, for example, power-consuming components of a

Utility be supplied. This can become one

Improvement of the efficiency of a commodity lead.

Another object of the present invention is to propose an improved composite material, in particular to propose a composite material suitable for shielding

Utility articles with regard to electrical and / or magnetic fields is suitable, also can ensure good heat distribution and heat dissipation.

According to the invention this object is achieved by a composite material with the characterizing features of claim 17. By such a coating, the thermal conductivity of the

Composite material further improved and in particular the

Improved heat dissipation and the formation of hotspots can be avoided.

Further advantageous embodiments of the proposed invention will become apparent in particular from the features of the dependent claims. The objects or features of the various claims can basically be combined with each other arbitrarily.

In an advantageous embodiment of the proposed invention, it can be provided that the coating is a surface coating of the composite material. By means of such a surface coating, optical defects can preferably be masked and accordingly an aesthetically pleasing surface can be created. In a further advantageous embodiment of the proposed invention can be provided that as the material for the first

Layer of a ferromagnetic material, a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used. Such a layer of one or more of the aforementioned

Materials are ideal for forming a layer of ferromagnetic material.

In a further advantageous embodiment of the proposed invention it can be provided that a material such as copper, silver, aluminum, nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials as material for the second layer of an electrically conductive material is used. Such a layer of one or more of the aforementioned materials is outstandingly suitable for forming a layer of an electrically conductive material.

In a further advantageous embodiment of the proposed invention can be provided that the first layer and the second layer are firmly bonded together, preferably by means of plating, in particular roll cladding. The production of the

Composite by means of plating allows a very strong connection of the aforementioned components.

Other features and advantages of the present invention will become more apparent from the following description

Embodiments with reference to the accompanying

Illustrations. Show:

Fig. 1 is a schematic cross-sectional view of the

 Composite material;

A schematic cross-sectional view of the

 Composite with a coating;

3 is a schematic cross-sectional view of

 Composite with a Peltier element;

4 is a schematic cross-sectional view of

 Composite with a coating and a

 Peltier element.

The following reference numbers are used in the figure:

1 first shift

 2 second layer

 3 coating

 4 Peltier element

A material, in particular composite material, for the

use according to the invention or the invention

Utility article essentially comprises a first layer 1, a second layer 2 and in particular a coating 3 and / or a Peltier element 4.

The composite is preferably as a surface

Composite material, in particular in the form of on rolls rolled up ribbons. For further processing, the material is unrolled accordingly and further production processes,

in particular shaping processes. Also conceivable is the provision in the form of already cut plates.

The first layer consists of a ferromagnetic material and a second layer of an electrically conductive material.

In particular, the layer of a ferromagnetic material provides good shielding against magnetic fields. In particular, the layer of an electrically conductive material provides good shielding against electric fields. The combination of the two layers provides a good thermal conductivity, so that a good heat dissipation can be guaranteed and hotspots can be avoided.

The optional coating can be used as a nano-coating,

Anodization, painting or other organic or inorganic coating be designed. By means of such a coating, the thermal conductivity of the composite material can be further improved and, in particular, the heat dissipation can be improved and the formation of hotspots can be avoided. The coating may preferably have a matt black color. Coating with tin, nickel, copper, silver, zinc and other types of metallic, carbonaceous, ceramic and / or other types of coatings is also suitable as a coating.

The coating is preferably a

Surface coating of the composite material, ie the

Coating also forms the outer layer of the final product. By such a surface coating may preferably optical defects are covered and therefore an aesthetically pleasing surface are created.

As a material for the first layer of a ferromagnetic

Material is iron or an iron alloy in question. Nickel, cobalt and their ferromagnetic alloys are also suitable as the material for the first ferromagnetic layer. Such a layer of one or more of the aforementioned

Materials are ideal for forming a layer of ferromagnetic material.

As a material for the second layer of an electrically conductive material is copper or a copper alloy and / or silver or a silver alloy in question. Also come as aluminum and its alloys, nickel and its alloys, silver alloys, tin and its alloys and gold and its alloys as

Material for the second electrically conductive layer in question. Such a layer of one or more of the aforementioned

Materials are ideal for forming a layer of an electrically conductive material.

The first layer and the second layer are preferably firmly joined together, preferably by means of plating, in particular roll cladding.

The layer structure can also consist of 4 to 7 layers or theoretically more, depending on the structure. In addition, there does not necessarily have to be a uniform layer structure, that is to say one

Paint or a metallic material can also be applied only partially. A commodity, in particular electrotechnical device, preferably power electronics device, which is equipped with the above outlined material, in particular composite, is preferably a commodity or any application in which a shield for or against electrical and / or magnetic fields necessary or at least advantageous is and in which, in particular selectively, heat is generated, which must be dissipated or is advantageously dissipate. So can the

Commodity, for example, as a smart device (mobile phone or smartphone, tablet computer, etc.), automotive electronics,

Industrial electronics (robots, automated production line, etc.) be executed. Also conceivable are smartphone cases,

Tablet cushions, children's bed linens, etc. The term

Utility object is to be understood accordingly far and can, for example, facilities and rooms or their

Room boundaries, such as walls, etc. include.

The arrangement of the layers in FIG. 1 is only an example. It can be provided, for example, that the first layer 1 and second layer 2 are exchanged. Likewise correspond the

Dimensions of the layers are not necessarily the reality. They serve only for a corresponding visualization of the layers.

A composite material may be provided with a coating 3, as already described above. A schematic

Cross-sectional representation of such a composite material is shown in FIG.

Furthermore, the composite material may be equipped with a Peltier element 4. A schematic cross-sectional view of such a composite material is shown in FIG. A Peltier element is a

electrothermal transducer, based on the Peltier effect at current flow, a temperature difference or at

Temperature difference generates a current flow (Seebeck effect). In the present invention, a current flow should preferably be generated from a temperature difference (Seebeck effect).

Also, the composite material can be equipped with both a Peltier element 4, as well as a coating 3. A schematic cross-sectional view of such a composite material is shown in FIG.

Claims

claims: 1. Use of a material for shielding opposite  electric and magnetic fields, as well as to  Heat dissipation, characterized in that the material is designed as a composite material, comprising a first layer (1) made of a ferromagnetic material and at least one second layer (2) of an electrically conductive material. 2. Use of a material according to claim 1, characterized  characterized in that the composite material with a  Coating (3) is equipped, in particular as  Nanocoating, anodization, painting, galvanic finishing with tin, nickel, copper, silver, zinc, metallic, carbonaceous or ceramic coating or other coating is configured. 3. Use of a material according to at least one of  preceding claims, characterized in that the coating (3) is a surface coating of the composite material. 4. Use of a material according to at least one of  preceding claims, characterized in that as material for the first layer (1) of a ferromagnetic material, a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used. 5. Use of a material according to at least one of  preceding claims, characterized in that as material for the second layer (2) of an electrically Conductive material such as copper, silver, aluminum, Nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials is used. 6. Use of a material according to at least one of  preceding claims, characterized in that the first layer (1) and the second layer (2) are firmly joined together, preferably by means of plating, in particular roll cladding. 7. Use of a material according to at least one of  preceding claims, characterized in that the composite material is equipped with a Peltier element. 8. Utility item, in particular electrotechnical device, preferably power electronics device, characterized  characterized in that the commodity a  Composite material, wherein the composite material comprises a first layer (1) made of a ferromagnetic material and at least one second layer (2) made of an electrically conductive material. 9. Utility item according to claim 8, characterized  characterized in that the composite material with a  Coating (3) is equipped, in particular as  Nanocoating, anodization, painting, electroplating with tin, nickel, copper, silver, zinc, metallic, carbonaceous or ceramic coating or other organic or inorganic coating is configured. 10. utensil after at least one of preceding claims, characterized in that it the coating (3) is a surface coating of the composite. 11. Utility item after at least one of  preceding claims, characterized in that as material for the first layer (1) of a ferromagnetic material, a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used. 12. utensil after at least one of  preceding claims, characterized in that as material for the second layer (2) of an electrically conductive material, a material such as copper, silver, aluminum, nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials is used. A commodity after at least one of  preceding claims, characterized in that the first layer (1) and the second layer (2) are firmly joined together, preferably by means of plating, in particular roll cladding. A commodity after at least one of The preceding claims, characterized in that the utensil is a smart device, in particular mobile phone, smartphone, tablet computer, automotive electronics, industrial electronics, preferably robots, automated production lines, smartphone cover, tablet cushion or children's bed insert. 15. Utility object according to at least one of the preceding claims, characterized in that the composite material is equipped with a Peltier element. Composite material comprising a first layer (1) of a ferromagnetic material and at least one second layer (2) of an electrically conductive material, characterized  characterized in that the composite material is equipped with a Peltier element (4). 17. A composite material according to claim 16 or the preamble of claim 16, characterized in that the  Composite material is provided with a coating (3), in particular as nano-coating, anodization,  Painting, galvanic finishing with tin, nickel, copper, silver, zinc, metallic, carbonaceous or ceramic coating or other coating is configured. 18. A composite material according to at least one of the preceding claims, characterized in that it is in the coating (3) to a surface coating of  Composite material acts. 19. A composite material according to at least one of the preceding claims, characterized in that a material such as iron, nickel, cobalt or a ferromagnetic alloy comprising one or more of the aforementioned materials is used as material for the first layer (1) of a ferromagnetic material. 20. A composite material according to at least one of the preceding claims, characterized in that as material for the second layer (2) of an electrically conductive material Material such as copper, silver, aluminum, nickel, tin, gold or an electrically conductive alloy comprising one or more of the aforementioned materials is used. Composite material according to at least one of the preceding claims, characterized in that the first layer (1) and the second layer (2) are firmly joined together, preferably by means of plating, in particular roll cladding.