Sealed protective flexible connection structure capable of shielding electromagnetic radiation

Abstract

The invention discloses a sealed protective flexible connection structure capable of shielding electromagnetic radiation. The structure includes an upper sealing pressure sleeve connected with an upper casing body and a lower sealing pressure sleeve connected with a lower casing body. The upper sealing pressure sleeve and the lower sealing pressure sleeve are sleeved by a communicating central hole. A sealing sheath is arranged in the central hole. A conductive sealing ring surrounding the sealing sheath is arranged between the upper sealing pressure sleeve and the lower sealing pressure sleeve. A three-phase cable is arranged in the sealing sheath. One end of the three-phase cable leads into the upper casing body, and the other end of the three-phase cable leads into the lower casing body. The ends of the sealing sheath tightly match the upper and lower casing bodies. The sealed protective flexible connection structure provided by the invention is capable of shielding electromagneticradiation and realizing sealing performance and low electromagnetic radiation performance of the connection part of a motor and a motor controller.

Description

technical field [0001] The invention belongs to the field of electric drive power assembly, and in particular relates to a sealed and protected flexible connection structure capable of shielding electromagnetic radiation. Background technique [0002] With the increasing popularity of electric vehicles, the country's safety requirements for electric vehicles are also increasing. The safety of the electric motor is not only reflected in the traditional concerns such as mechanical structure safety and battery safety, but also in the harm of electromagnetic radiation to the human body. As the core technology of new energy vehicles, the electric drive powertrain is increasingly integrated and developed in the direction of high power density, and the current and voltage of the driving motor are also increasing. The electrical connection part of the motor and the controller requires insulation performance and safety sealing. High, easy to emit electromagnetic radiation, it is the...

AI Technical Summary

Problems solved by technology

At present, if the motor and the controller adopt a rigid connection structure of metal parts, the anti-vibration effect of the controller will be poor, and the reliability of electronic components will decrease; if the three-phase wire harness with electromagnetic shielding function is used for connection, the cost will be high and the structure will not be compact. ; Such as the rubber flexible connection structure, it cannot effectively prevent problems such as electromagnetic radiation

Images