Novel start control circuit for double-winding compressor
A start-up control and compressor technology, applied in pump control, machine/engine, mechanical equipment, etc., can solve the problems of low safety performance, short service life, easy to burn compressors, etc., to achieve high work safety performance and prolong service life , to prevent the effect of burning
Active Publication Date: 2011-04-06
JIANGSU JOSUN AIR CONDITIONER
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Problems solved by technology
[0004] In order to overcome the shortcomings of the prior art that the start-up control circuit of the double-winding compressor is easy to burn the compressor, the safety performance is low, and the service life is short, the present invention provides a new start-up control circuit for the double-winding compressor, which prevents the compressor from burning out from the circuit The possibility of ensuring the safety of the compressor
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[0012] The present invention will be further described below in conjunction with drawings and embodiments.
[0013] figure 1 As shown, the new start-up control circuit of the double-winding compressor includes a control power supply U, a first contactor KM1, a first normally open switch KM11 of the first contactor, a second normally open switch KM12 of the first contactor, a second contactor KM2, The first normally open switch KM21 of the second contactor, the second normally closed switch KM22 of the second contactor, the third normally open switch KM23 of the second contactor, the first delay relay KT1, the first delay relay normally open switch KT11, The second delay relay KT2 and the second delay relay normally closed switch KT21.
[0014] The second delay relay KT2 is connected in parallel to the control power supply; the first delay relay KT1 is connected in parallel to the control power supply after the second contactor second normally closed switch KM22 and the first ...
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The invention relates to a novel start control circuit for a double-winding compressor. The novel start control circuit comprises a first contactor and a second contactor which are connected in parallel with a control power supply, the first contactor is connected in series with a first normally open switch of the second contactor and is connected in parallel with the control power supply, and the first normally open switch of the second contactor is connected in parallel with a normally closed switch of a second time delay relay; the second contactor is connected in series with a first normally open switch of the first contactor and a normally open switch of a first time delay relay and is connected in parallel with the control power supply, and the normally open switch of the first timedelay relay is connected in parallel with a third normally open switch of the second contactor; and the time delay working time of the first time delay relay is shorter than that of the second time delay relay. The contactors in which two time delay relays and two time delay relay switches are matched with double windings realize power-off protection of the working of a single winding in the double windings on the circuit, the working safety performance of the double windings is high, the compressor can be effectively prevented from being burnt out, and the service life of the compressor is prolonged.
Description
technical field [0001] The invention relates to a compressor startup control circuit, in particular to a new startup control circuit for a double-winding compressor. Background technique [0002] The existing method for start-up control of a double-winding compressor is as follows: firstly, one winding is started first, and after a delay, the other winding is started to complete the start-up of the double-winding, and the compressor is in a fully working state. [0003] But when one winding starts first, the other winding fails to start normally after a delay, and the compressor is easy to burn out; if a time relay is added to control the timing to close the winding, the vibration of the compressor will cause the time relay to fail or be damaged, and the compressor is also easy to burn out. The safety performance of the machine is low and the service life is short. Contents of the invention [0004] In order to overcome the shortcomings of the prior art that the start...
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IPC IPC(8): F04B49/06
Inventor 顾恒印爱荣于贝
Owner JIANGSU JOSUN AIR CONDITIONER