Explosion-proof inverter movement and explosion-proof inverter
An explosion-proof frequency converter and core technology, applied in the field of electrical transmission, can solve the problems of inconvenient DC bus connection, maintenance and installation difficulties, etc.
Inactive Publication Date: 2016-01-06
SHENZHEN INVT ELECTRIC
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Problems solved by technology
If multiple explosion-proof chambers are designed in the explosion-proof casing to overcome the manufacturing difficulties of the explosion-proof casing, the rectifier unit, inverter unit and other components will be located in different explosion-proof chambers, which is not convenient for DC bus connection, and maintenance and installation will become difficult. very difficult
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[0029] The embodiment of the present invention provides an explosion-proof frequency converter core and an explosion-proof frequency converter.
[0030] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] An explosion-proof frequency converter movement according to an embodiment of the present invention is described below. Such as figure 2 Shown is the explosion diagram of the c...
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The invention discloses an explosion-proof frequency converter core and an explosion-proof frequency converter. The explosion-proof frequency converter core comprises a back plate, a rectifying unit, an inverter unit and a capacitor component, wherein the rectifying unit is installed on the back plate and used for converting input three-phase alternating current into direct current; the inverter unit is installed on the back plate and used for converting input three-phase direct current into three-phase alternating current; the capacitor component is installed on the back plate and mainly used for wave filtration and energy storage; the capacitor component is positioned between the rectifying unit and the inverter unit; and the rectifying unit, the inverter unit and the capacitor component are arranged on the same surface of the back plate and tightly connected. The technical scheme provided by the invention can effectively reduce the size of the explosion-proof frequency converter core.
Description
technical field [0001] The invention relates to the field of electrical transmission, in particular to an explosion-proof frequency converter core and an explosion-proof frequency converter. Background technique [0002] At present, the application of explosion-proof frequency converters in flammable and explosive places such as underground coal mines and dust environments is becoming more and more common. [0003] Such as figure 1 Shown is an existing four-quadrant explosion-proof inverter core, which is mainly composed of a rectifier unit 12, an inverter unit 13 and two capacitor modules 11 formed by integrally assembling several capacitors. The rectifying unit 12 is connected to the capacitor module 11 arranged at one end of the movement; the inverter unit 13 is connected to another capacitor module 11 arranged at the other end of the movement. Depend on figure 1 It can be seen that the capacitor module 11 is an integral structural part with a large volume. The two cap...
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IPC IPC(8): H02M1/00H02M7/00
Inventor 谭海鸥万明亮王勇徐良伟
Owner SHENZHEN INVT ELECTRIC