There are many manufacturers of this structure, the main representative companies are BMW Spring in Switzerland, Basel in the United States, etc. They have many practical and mature application cases in this area. In most cases, for the connection between the wire and the shielding layer, we will use the form of metal inner and outer rings for crimping, placing the shielding layer between the two metal rings, and deforming the shielding layer and the metal ring by cold pressing. Tightly fastened. In addition, we also have a shielding method, which uses a structure similar to the strap spring to replace the spring connection. This structure is often used in military products, and the technology is mature; we have done relevant tests, all of which can meet the design requirements . The structure is applied to the shielding of new energy electric vehicles, which can not only meet the performance requirements, but also is a stamped part, suitable for mass production, and has high cost performance.