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Draught fan control device, draught fan system and frequency converter system

A technology for control devices and fans, which is applied in the field of fan systems, frequency converter systems, and fan control devices, and can solve problems such as complex circuit structures of fan control devices

Pending Publication Date: 2018-09-25
HENAN SENYUAN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a fan control device to solve the problem that the circuit structure of the existing fan control device is relatively complicated

Method used

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  • Draught fan control device, draught fan system and frequency converter system

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Experimental program
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Embodiment Construction

[0015] Embodiment of frequency converter system

[0016] This embodiment provides a frequency converter system, including a frequency converter and a fan system. The fan system is used to dissipate heat from the frequency converter. Since the frequency converter belongs to the prior art, the protection point of the frequency converter system is the fan system. Moreover, the fan system includes a fan and a fan control device. Since the fan belongs to the prior art, the protection point of the fan system is the fan control device. Therefore, the protection points of the inverter system and the fan system are both the fan control device. Then, the application object of the fan system, that is, the application object of the fan control device is not limited to the inverter. In addition to the inverter, it can also be other of the heat-dissipated equipment.

[0017] figure 1 It is the control circuit diagram of the inverter system, such as figure 1 As shown, the fan control devi...

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PUM

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Abstract

The invention relates to a draught fan control device, a draught fan system and a frequency converter system. The draught fan control device comprises four control branched circuits led out by a powersupply, wherein a starting switch, a stopping switch and a control coil of a first middle relay are connected on a first control branched circuit in series, and a main normally-open contact of the first middle relay is connected to a power supply circuit of cooled equipment in series; an auxiliary normally-closed contact of the first middle relay and a control coil of a time relay are connected to a second control branched circuit in series; a delay closing contact of the middle relay and a control coil of a second middle relay are connected to a third control branched circuit in series; andan auxiliary normally-closed contact of the second middle relay and a draught fan are connected to a fourth control branched circuit in series. Besides, according to the scheme, the design is reasonable, the application range is wide and the requirements on safety, reliability and unattended operation can be met.

Description

technical field [0001] The invention relates to a fan control device, a fan system and a frequency converter system. Background technique [0002] The frequency conversion cabinet is the control cabinet that uses the frequency converter to drive the power device. Because of its good starting performance, speed regulation performance and energy saving effect, it has become the currently popularized power driving method. In the power distribution produced in the industrial field, when the frequency converter is used in the motor control cabinet, the frequency converter will generate a lot of heat during work, which will increase the temperature, causing the temperature in the switch cabinet to rise beyond the predetermined standard, damaging the frequency converter and various In order to improve the working performance of insulating parts and shorten the service life of facilities, etc., fans are often added to the cabinet to achieve heat dissipation and dissipate heat for th...

Claims

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Application Information

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IPC IPC(8): F04D27/00H02P25/16H05K7/20
CPCH02P25/16H05K7/20909F04D27/008
Inventor 杨烁段博伦曹帅鹏秦鸽鸽
Owner HENAN SENYUAN ELECTRIC CO LTD
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