Search

CN-121986561-A - Shielding element

CN121986561ACN 121986561 ACN121986561 ACN 121986561ACN-121986561-A

Abstract

In order to provide a shielding element for electromagnetic shielding of electronic components, which has a light weight, can be produced in a low-cost manner and has a simple structure, the invention proposes that the shielding element comprises a base body and at least one electrically conductive layer, the base body having coupling means by means of which the base body can be coupled to corresponding means, the at least one electrically conductive layer being arranged at least partially at and/or in the base body, wherein the base body and the at least one electrically conductive layer are connected to one another, in particular joined together by means of an injection molding process, an injection compression molding process and/or a compression molding process.

Inventors

  • F. Albrecht
  • Gold Chai Kesile
  • E. Kubler
  • WOLF THOMAS
  • A. Eni
  • F. Vincent Mayer

Assignees

  • 爱尔铃克铃尔股份公司

Dates

Publication Date
20260505
Application Date
20241017
Priority Date
20231019

Claims (17)

  1. 1. Shielding element (100), in particular a cover element, a housing element, a cover element and/or the like, for electromagnetic shielding of an electronic component, comprising a base body (102) with coupling means (114) by means of which the base body (102) can be coupled with corresponding means, and at least one conductive layer (104) being arranged at least partially at and/or in the base body (102), characterized in that the base body (102) and at least one conductive layer (104) are connected to each other, in particular joined together by means of an injection molding process, an injection compression molding process and/or a compression molding process.
  2. 2. Shielding element according to claim 1, characterized in that the coupling means (114) have at least one electrically conductive contact section (126), by means of which the coupling means (114) can be brought into electrical contact with the corresponding means.
  3. 3. Shielding element according to claim 2, characterized in that at least one electrically conductive contact section (126) is formed at least partially from the electrically conductive layer (104) and/or is in contact with at least one of the electrically conductive layers (104).
  4. 4. A shielding element according to claim 2 or 3, characterized in that the coupling device (114) has at least one channel (116) provided in the base body (102), wherein a conductive element (124), in particular a conductive sleeve, is provided in the channel (116), which conductive element forms the contact section (126) and/or is in contact with the contact section (126).
  5. 5. Shielding element according to claim 4, characterized in that at least one electrically conductive contact section (126) is formed at least partially by the electrically conductive element (124), in particular by an end side or flange section (136) of the electrically conductive sleeve.
  6. 6. Shielding element according to any one of the preceding claims, characterized in that at least one electrically conductive protrusion (130) is provided at the base body (102), by means of which protrusion the electrically conductive layer (104) can be brought into electrical contact with the corresponding device when coupled with the corresponding device.
  7. 7. Shielding element according to any one of the preceding claims, characterized in that the electrically conductive layer (104) is at least partly constructed from a metallic material, preferably from aluminum, copper, iron, nickel, silver and/or the like.
  8. 8. Shielding element according to any one of the preceding claims, wherein the electrically conductive layer (104) is at least partly configured as a foil and the foil is a metal foil, wherein the thickness of the metal foil is 0.03 to 0.6mm.
  9. 9. Shielding element according to any one of the preceding claims, characterized in that the electrically conductive layer (104) is at least partly constructed from an electrically conductive organic material, preferably from carbon, in particular from carbon fibers, graphite or the like.
  10. 10. The shielding element according to any one of the preceding claims, wherein the conductive layer (104) is at least partly constructed of a combination of conductive and non-conductive materials.
  11. 11. Shielding element according to any one of the preceding claims, characterized in that the electrically conductive layer (104) is at least partly constructed from a woven, a laid, a weft, a warp, a nonwoven and/or the like provided with an electrically conductive material.
  12. 12. Shielding element according to any one of the preceding claims, characterized in that the electrically conductive layer (104) is at least partly constructed as a foil, a sheet material, a perforated sheet material, a stretched metal, a stretched grid or the like.
  13. 13. Shielding element according to any one of the preceding claims, characterized in that an adhesion promoter (112) is provided at least locally between the substrate (102) and the electrically conductive layer (104).
  14. 14. The shielding element according to any one of the preceding claims, wherein the electrically conductive layer (104) has, at least locally, a layer thickness of at least about 0.005mm and/or at most about 1 mm.
  15. 15. The shielding element according to any of the preceding claims, wherein a ratio of about 1/1 to about 1/10000 is formed at least locally between the layer thickness of the conductive layer (104) and the thickness of the substrate (102).
  16. 16. The shielding element according to any one of the preceding claims, wherein the base body (102) is configured as a multi-layered injection molding, wherein at least one of the electrically conductive layers (104) is arranged at least between two adjacent layers (132, 134).
  17. 17. The shielding element according to any one of claims 6 to 16, wherein the electrically conductive protrusion (130) has a raised protruding region (138) and a side wall (156), wherein the side wall extends obliquely and/or is inclined with respect to a protrusion raised direction (154), wherein the electrically conductive layer (104) covers or forms the side wall in whole or in part, wherein it can be advantageous that the protruding region (138) is electrically conductive at a contact region (140) of the highest degree of raised protrusion (130).

Description

Shielding element Technical Field The present invention relates to a shielding element for electromagnetic shielding of electronic components. Background A housing made of a metallic material is generally used to shield electromagnetic radiation. Such a housing has a relatively large weight and relatively high material and manufacturing costs. Disclosure of Invention The object of the present invention is to provide a shielding element which has a light weight, can be manufactured in a low cost manner and has a simple structure. According to the invention, this object is achieved by a shielding element for electromagnetic shielding of an electronic component, comprising a base body with coupling means by means of which the base body can be coupled with corresponding means, and at least one electrically conductive layer at least partially arranged at and/or in the base body, wherein the base body and the at least one electrically conductive layer are connected to each other, in particular joined together by means of an injection molding process, an injection compression molding process and/or a compression molding process. Such a shielding element may be configured in particular as a cover element, a housing element, a covering element and/or the like. For example, the shielding element may be configured as a cover element, which can be coupled with a corresponding device, which is preferably configured as a housing, by means of a coupling device. The coupling means may preferably be a connection section, for example a flange-shaped connection section, by means of which the shielding element can be detachably coupled with the corresponding means. In particular, the shielding element and the corresponding device may together form an interior space, which is shielded against electromagnetic radiation and in which electronic components, such as electronic equipment components, battery arrangements and/or the like, are received. At least one conductive layer is provided to construct a shield with respect to the electric and/or magnetic field. For this purpose, the conductive layer preferably extends in a floor-like, in particular overall-like manner in and/or on the base body. The base body can have any geometric design, and can preferably be configured as a substantially planar component. Advantageously, the base body can have a wall section extending in a planar manner, on which a rim section is provided, which at least partially surrounds the wall section. Preferably, the wall section is delimited entirely circumferentially by the edge section. The edge section may be configured as a flange. The coupling means may preferably be provided at the edge section. The base body is in particular constructed as an injection molded part. Preferably, the base body is constructed from a plastic material, for example from a thermoplastic or a fiber-reinforced plastic. The substrate may be constructed and/or manufactured, for example, by a conventional injection molding process or foam injection molding process or injection compression molding process or compression molding process. Advantageously, the conductive layer is encapsulated by the matrix and/or the matrix is sprayed and/or molded and/or embossed onto the conductive layer. In the injection molding process, injection compression molding process and/or compression molding process, the electrically conductive layer is inserted into an injection mold for this purpose, and subsequently a plastic material or fiber-reinforced plastic is supplied, in particular injected, into the injection mold in order to form the base body with the electrically conductive layer arranged there and/or therein in this way. Additionally, one or more reinforcing elements, for example in the form of inserts or the like, may be provided in and/or at the base body. In the molding process, for example, a flow molding compound (Flie beta pressmasse), in particular a DLFT/GMT flow molding compound, may be provided or used. A further development of the shielding element may provide that the coupling device has at least one electrically conductive contact section, via which the coupling device can be brought into electrical contact with the corresponding device. By means of the electrically conductive contact sections, an electrical connection can be formed between the shielding element and the corresponding device when the shielding element is coupled to the corresponding device, a complete shielding against electromagnetic radiation can be formed. The electrically conductive contact section of the coupling device can be provided, for example, by an electrically conductive surface which is provided on the base body in a direction pointing away from the base body, i.e. in a direction towards the corresponding device to be coupled. An advantageous development of the shielding element may provide that the at least one electrically conductive contact section is formed at least partially from and/or is