Control box of frequency converter
A technology of frequency converter control and frequency converter, which is applied in the direction of output power conversion device, electrical components, cooling/ventilation/heating transformation, etc. It can solve the problems of internal component burning, internal temperature uncontrollable, heat dissipation inconvenience, etc., to prevent overheating or burning danger, convenient for remote monitoring of the operation of the inverter, and convenient operation
Inactive Publication Date: 2016-02-03
SHANGHAI KAIWEI ELECTRIC EQUIP CO LTD
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Problems solved by technology
[0002] The display interface on the door of the inverter control box in the current explosion-proof industry only has the display function, and the adjustment parameters need to be adjusted through the buttons or on the inverter after opening the control box door; there is no temperature monitoring equipment in the box, and the internal temperature cannot Control, heat dissipation is inconvenient, when the temperature is high, it will affect the normal operation of the internal components of the inverter, and even cause the internal components to be burned; the PLC program in the control box can only be performed through the control box panel, and remote debugging operations cannot be performed
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[0012] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0013] This embodiment provides a frequency converter control box, such as figure 1 As shown, the box contains a frequency conversion main circuit and a power frequency main circuit. The frequency conversion main circuit contains frequency conversion circuit breaker F1, AC contactor KM1, frequency converter and frequency conversion contactor KM2 connected in sequence. Connected power frequency circuit breaker F2, power frequency contactor KM3 and power frequency protector (not shown in the figure); the output terminals of the above-mentioned frequency conversion contactor KM2 and power frequency protector are connected to the external motor M, when the power enters, Close frequency conversion circuit breaker F1 and power frequency circuit breaker F2, select frequency conversion control or power frequency control through the selection button, if frequency conversion ...
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The invention relates to the field of frequency converter control and discloses a control box of a frequency converter. The control box of the frequency converter comprises at least one frequency conversion main loop and at least one power frequency main loop inside the box body as well as an intrinsic-safety touch screen fixed on a box door, wherein each frequency conversion main loop comprises a frequency conversion breaker, an alternating current contactor, the frequency converter and a frequency conversion contactor which are connected in succession, and each intrinsic-safety main loop comprises a power frequency breaker and a power frequency contactor which are connected in succession; and the intrinsic-safety touch screen is connected to signals of the frequency converter, and the intrinsic-safety touch screen is exposed outside the box body. In comparison with the prior art, the control box of the frequency converter disclosed by the invention can directly use a display screen to realize a touch operation in order to adjust the frequency converter and other parameters, can monitor temperatures in the box body and can realize remote monitoring of the frequency converter.
Description
technical field [0001] The invention relates to the field of frequency converter control, in particular to a frequency converter control box. Background technique [0002] The display interface on the door of the inverter control box in the current explosion-proof industry only has the display function, and the adjustment parameters need to be adjusted through the buttons or on the inverter after opening the control box door; there is no temperature monitoring equipment in the box, and the internal temperature cannot Control, heat dissipation is inconvenient, and when the temperature is high, it will affect the normal operation of the internal components of the inverter, and even cause the internal components to burn out; the PLC program in the control box can only be performed through the control box panel, and remote debugging operations cannot be performed. Contents of the invention [0003] Purpose of the invention: Aiming at the problems existing in the prior art, the...
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IPC IPC(8): H02M1/00H05K7/20
Inventor 夏海晓刘水根
Owner SHANGHAI KAIWEI ELECTRIC EQUIP CO LTD