The function of carbon brush slip ring in generator

The carbon brush of generator is generally made of solid conductor , The carbon brush with serious wear needs to be replaced in use . This solid carbon brush cannot be in close contact with the conductive slip ring of the generator . The contact surface of carbon brush and slip ring is easy to enter dust , Contact resistance increases . The contact resistance shares a lot of excitation voltage , Large current loss , Easy to produce sparks , Cause a fire .

Mofuron electronics aims at the shortcomings of the existing technology , The shortcomings of solid carbon brushes are well solved , Improved the poor contact between the generator slip ring and the carbon brush 、 The phenomenon of high contact resistance , The loss of excitation current is reduced , The technical scheme of carbon brush slip ring for generator which reduces the accident rate of generator . This proposal is a carbon brush slip ring for generator with rotor fixed on rotating shaft and stator with rotor winding , It is characterized by , Carbon brush chambers are respectively arranged on the rotating shafts on both sides of the generator , A conductive liquid chamber for adding conductive liquid is arranged at the bottom of the carbon brush chamber , The carbon brush chamber is fixed on the generator through a fixing bracket . Splash proof rings are arranged on both sides of the conductive liquid chamber , The splash proof ring is fixed on the rotating shaft . The upper part of the sliding ring is provided with an anti cup guide cover , An anti cup guide cover is fixed on the wall of the carbon brush chamber . The slip ring is provided with a flow increasing convex ring and a flow increasing concave ring . The slip ring is fixed on the shaft through an insulating ring . The outlet of the overflow pipe set in the conductive liquid chamber is set outside the carbon brush chamber , Brush chamber closed , The carbon brush room is equipped with an observation hole , The bottom inner wall is provided with an insulating partition .

The effect of this proposal can be clearly seen from the above records , The slip rings of the two carbon brush chambers are respectively connected with the positive lead and the negative lead of the rotor winding , And part of the slip ring is immersed in conductive liquid , Therefore, the slip ring is conductive during the rotation of the rotating shaft , Splash proof rings are arranged on both sides of the conductive liquid chamber , Fixed on the rotating shaft , A splash proof protective cover is arranged on the upper part of the sliding ring , The splash guard is fixed on the wall of the carbon brush chamber , therefore , When the sliding ring rotates along the rotation axis , Conductive liquid dispersion , The outlet of the overflow pipe is arranged outside the carbon brush chamber , therefore , If there is too much conductive liquid , Who will flow out along the overflow pipe , The carbon brush chamber is provided with an observation hole for easy observation of the situation in the carbon brush chamber , Insulate on the inner wall at the bottom of the brush chamber . thus it can be seen , Compared with the prior art , With substantial characteristics and progress , The beneficial effect of its implementation is also obvious .