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A method for controlling cooling fans of soft starters

A soft starter and cooling fan technology, applied in pump control, machine/engine, non-variable capacity pump, etc., can solve the problems of wasting power and increasing the damage probability of the cooling fan of the soft starter

Active Publication Date: 2016-08-03
芜湖鸠江科技企业孵化器管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Running for a long time will increase the probability of damage to the cooling fan of the soft starter, and it will waste electricity

Method used

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  • A method for controlling cooling fans of soft starters
  • A method for controlling cooling fans of soft starters
  • A method for controlling cooling fans of soft starters

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Experimental program
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Embodiment Construction

[0017] Such as Figure 1-3 As shown, the present invention is that the microprocessor of the soft starter outputs high and low levels to respectively control the conduction and cut-off of the triode Q6, thereby controlling the pull-in and release of the relay K3, the pull-up contact of the relay K3 is connected to the socket JX4, and the socket JX4 The two pins are connected to the main board of the soft starter to take power, so that the radiator can be controlled by software.

[0018] Such as Figure 4 As shown, the start button on the display panel of the soft starter of the present invention gives a start signal to the microprocessor, the soft starter starts to run, and the cooling fan starts to work at the same time. After running for a period of time, the soft starter is in a bypass state, and the cooling fan will continue to run for a period of time and then stop.

[0019] The model of the microprocessor is LPC2136, which controls the start and stop of the cooling fan...

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PUM

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Abstract

The invention discloses a control method of a soft starter heat radiation fan, and the control method is characterized in that a microprocessor of a soft starter outputs a high level and a low level to respectively control a triode Q6 to be conducted and stopped, so that a relay K3 is controlled to be actuated and released, an actuation contact of the relay K3 is accessconnected to a socket JX4, and two pins of the socket JX4 are respectively accessconnected to a main board of the soft starter so as to be electrified. By adopting the circuit structure, the control method has the following advantages that 1, no additional external power supply is needed, and power supply can be realized through the soft starter main board; 2, not only is a heat radiation effect on a thyristor realized, but also the traditional soft starter heat radiation fan can be avoided toprevented from always staying at a running state; and 3, the damage probability of the heat radiation fan is reduced, and the electric power is saved.

Description

technical field [0001] The invention relates to a soft starter, in particular to a control method for a cooling fan of the soft starter. Background technique [0002] As a motor control device, the soft starter uses three-phase parallel thyristors as a voltage regulator to complete the control of the motor. During the starting process of the soft starter, a large current flows through the three-phase parallel thyristor, which causes it to become hot, so a cooling fan is needed for heat dissipation. [0003] The current cooling fan of the soft starter requires an independent power supply, and the cooling fan of the soft starter is always in operation. Running for a long time will increase the probability of damage to the cooling fan of the soft starter, and it will waste electricity. [0004] In view of the above problems, it is a problem to be solved in the prior art to provide a new control method of the cooling fan so as to avoid the cooling fan of the soft starter from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
Inventor 束龙胜洪晨义
Owner 芜湖鸠江科技企业孵化器管理有限公司