江苏春晨电缆有限公司生产春晨JBF电机引接线电机引出线,
由于电缆连接电池,逆变器和电动机,高压电缆需要传输高电流。根据系统组件的功率要求,电流可达到250A到450A。这么高的电流在常规驱动的车辆上是很难找到的。
Because cables are connected to batteries, inverters and motors, high voltage cables need to transmit high current. According to the power requirements of the system components, the current can reach 250A to 450A. It is difficult to find such a high current in a conventional drive vehicle.
3. 温度
3. temperature
高电流传输的结果导致高功耗和组件的加热。因此高压电缆设计为承受较高的温度。目前可以看出对温度要求有进一步增加的趋势。
The results of high current transmission lead to high power consumption and heating of components. Therefore, high voltage cables are designed to withstand higher temperatures. At present, it can be seen that there is a further increase in the temperature requirements.
相比之下,目前的车辆通常使用电缆的额定温度到105℃就足够了,只要是电缆不是用在发动机舱或其它耐较高的温度的区域。电动汽车高压电缆通常要高于这个温度,如125℃或150℃。
In contrast, the current vehicle usually uses the rated temperature of cable to 105 C, which is enough, as long as the cable is not used in the engine compartment or other areas with high temperature resistance. A high voltage cable in an electric vehicle is usually higher than this temperature, such as 125 or 150.
电动汽车内如果通过的路由不利,主机厂甚至会提出更高的耐高温要求。如排气管附近,电机前面,电池背面等。春晨JBF电机引接线电机引出线
If the routing in electric vehicles is unfavourable, the host plant will even put forward higher requirements for high temperature resistance. In the vicinity of the exhaust pipe, the front of the motor, the back of the battery, etc.
4. 工作寿命
4. working life
汽车行业通常在指定的温度等级电缆设计使用寿命为3000 h。在公认的电缆标准(如ISO 6722、ISO 14572),此值通常用于长期老化试验。在高压应用领域的客户的特殊要求可能超过3000 h,在规定的温度累计运行时间甚至达到至12000 h。
The automobile industry usually designs the service life of 3000 h for the designated temperature grade cable. In recognized cable standards (such as ISO 6722, ISO 14572), this value is usually used for long term aging test. The special requirements of customers in the field of high voltage applications may exceed 3000 h, and the cumulative operation time of the specified temperature is even up to 12000 H.
5. 屏蔽效果
5. shielding effectiveness
高压电缆的本身并不需要屏蔽,因为不像同轴电缆那样传输数据,但是需要防止或减少系统中的开关电源产生的高频辐射通过电缆诱导到周边部件。春晨JBF电机引接线电机引出线
The high-voltage cable itself does not need to be shielded, because it does not transmit data like coaxial cable, but it needs to prevent or reduce the high frequency radiation generated by switching power supply in the system, and induce the surrounding components through cables.