利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN105490508A 一种高压变频器功率单元 无效 - 驳回

一种高压变频器功率单元
摘要：
一种高压变频器功率单元，涉及一种功率单元，交流输入排（2）穿过电流互感器（1）后和二极管（3）连接，所述二极管（3）和复合母排（4）的上部连接，所述复合母排（4）的两侧分别连接两直流排（6）的一端，所述复合母排（4）的下部连接IGBT（7），在IGBT（7）上设有IGBT吸收电容（8），所述IGBT（7）的下部连接交流输出排（12）；本发明通过将现有技术中三相交流电转化两相交流电时附着在散热器上的各功率器件设计的更加紧凑，使高压变频器在实现各功率器件有效散热的同时，结构变得更加紧凑、重量更轻，实现了运行可靠，维护更加便捷的目的。
摘要（英）：

A high-voltage frequency converter power unit relates to a power unit. An AC input bar (2) penetrates through a current transformer (1) and is connected with a diode (3). The diode (3) is connected with the upper part of a composite busbar (4). Two sides of the composite busbar (4) are respectively connected with one end of each of two DC bars (6). The lower part of the composite busbar (4) is connected with an insulated gate bipolar transistor (IGBT) (7). The IGBT (7) is provided with an IGBT absorbing capacitor (8). The lower part of the IGBT (7) is connected with an AC output bar (12). According to the high-voltage frequency converter power unit, through making each power device which is mounted on a heat radiator in converting three-phase AC power to two-phase AC power in prior art more compact, the high-voltage frequency converter has advantages of realizing effective heat radiation of each power device, obtaining more compact structure and smaller weight, and realizing reliable operation and more convenient maintenance.

0/0