An introduction to the transmission cable in the display Main...
Shielding layer of DC charging pile cable
The shielding layer of DC charging pile cable is an important part of its structure, which is introduced from three aspects: concept, function and working principle:
Main component
concept
The shielding layer refers to a layer of metal shielding structure set up in the DC charging pile cable in order to reduce electromagnetic interference (EMI) and radio frequency interference (RFI), and to prevent external signals from interfering with communication transmission. This layer structure is usually made of bare copper wire or tinned copper wire braid, can effectively shield the external electromagnetic field, protect the internal signal and power line from interference.
Function
Anti-interference: The main role of the shield layer is to reduce the magnetic loss of the cable itself and the interference of the magnetic field to the surrounding environment, while preventing the interference of external electromagnetic waves to the interior of the cable to ensure the stability and accuracy of signal transmission.
Improved safety: By shielding from external interference, the shield helps improve the safety of the charging process and reduces the risk of equipment failure or safety incidents due to electromagnetic interference.
Protection of communication lines: In the charging pile cable, the shielding layer specially protects the communication line to ensure that the data transmission during the charging process is free from external interference, so as to ensure the accurate transmission of the charging control signal.
Working principle
Electrostatic shielding: By providing a closed metal surface, the shielding layer can effectively prevent the influence of external electromagnetic fields on the internal wiring. When an external electromagnetic wave reaches the shielding layer, an induced current is generated on the shielding layer, and this induced current generates an opposite electromagnetic field, thus counteracting the influence of the external electromagnetic field.
Electromagnetic reflection and absorption: The shielding layer not only reflects electromagnetic waves, but also absorbs part of the electromagnetic energy through the material, further reducing the possibility of electromagnetic waves penetrating the shielding layer.
Grounding: The shielding layer usually needs to be grounded to ensure the shielding effect. When the shield is grounded, any electromagnetic interference that penetrates the shield is directed to the ground, thus protecting the internal lines from interference.
In summary, the shielding layer of DC charging pile cable is one of the key technologies to ensure electromagnetic compatibility and safety in the charging process. Through effective shielding and grounding measures, the stability and reliability of the charging system can be significantly improved.
DC CHARGING PIlE SERIES
DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.
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