In the automotive industry, high voltage refers to DC voltages above 60V, at which level the need for contact protection is mandatory. I believe everyone knows that automotive high-voltage cables are the carrier of power transmission that connects automotive high-voltage system equipment, and is very important for product performance requirements. Among them, electric two-wheelers and three-wheelers are available in the market with voltages ranging from 24V to 72V, depending on the power and acceleration requirements of the vehicle. However, for 2W and 3W vehicles, voltages not exceeding 6 |
We all know about new energy electric vehicles in our daily life. In electric vehicles, the high-voltage electrical system is mainly responsible for starting, driving, charging and discharging, and air conditioning power. Automobile harness is the main body of automobile circuit network and the carrier of automobile circuit. Automobile harness is the bridge and link of vehicle electrical components and the nervous system of vehicle power and signal transmission and distribution. The high-voltage harness can be configured according to different voltage levels, and the internal and exte |
The high-voltage components are mainly three electric parts, including power battery, driving motor and high-voltage distribution box (PDU) of electric control system. For batteries, there are DC contactors, high-voltage relays, precharge resistors, etc. for motors, there are stators, rotors, current sensors, AC contactors, etc. for electric control systems, there are on-board chargers, PTC, electric compressors, high-voltage line contacts, OBC / DC, DC two in one controllers, etc. Among them, the high-voltage suitable distribution box used in new energy vehicles (pure electric) inclu |
With the rapid development of new energy vehicles, high-voltage harness is like the aorta of vehicles. According to the shielding type, the high-voltage harness can be divided into shielding type and non shielding type. The shielding type harness avoids the interference of the interference signal entering the inner conductor and reduces the loss of the transmission signal. Therefore, the shielding wire is widely used by new energy vehicles. The so-called "shielding" in cable structure is essentially a measure to improve the distribution of electric field. The cable conductor is twisted by mult... |
The high voltage system of electric vehicle has high voltage and high current circuit. Its safety and importance are self-evident. If human body contacts, it may cause injury. Therefore, the design and layout of high voltage harness of electric vehicle is very important. In addition, green travel is a concept advocated now. Now the short-distance public transport travel mode is gradually replaced by new energy vehicles, which requires higher requirements for the high-voltage cables of new energy vehicles. Here is a brief introduction to the high-voltage cables of new energy vehicles. |
New energy electric vehicles must be familiar to everyone. How much do you know about the wires and cables inside the vehicle? As for the thickness of vehicle high-voltage cable, in fact, the principle of household cable used is the same as that of other electric field. For example, comparing two kinds of high-voltage cables (divided into thickness and thickness) of two vehicles, it is concluded that the quality of high-voltage harness of "thin wire" is lower than that of “thick” high-voltage harness. Of course, these are two kinds of high-voltage harnesses, which have different functions a... |