Electromagnetic mechanism of vacuum contactor
A technology of vacuum contactor and electromagnetic mechanism, which is applied in the direction of high-voltage air circuit breakers, circuits, electric switches, etc., can solve the problems of poor scalability of vacuum contactors, inability to realize modularization, and large space occupied by mechanisms, so as to save copper enameled wires , Mechanism scalability is good, mechanism capacity is small
Active Publication Date: 2013-09-11
厦门市恒源新电力设备有限公司
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Problems solved by technology
The snap-in electromagnetic mechanism has the following disadvantages: 1. The mechanism takes up a lot of space and has a complex structure; 2. Vacuum contactors of different levels have poor scalability and cannot be modularized; 3. The service life is short
Method used
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[0037] Please refer to 1 to Figure 5 , The vacuum contactor electromagnetic mechanism, which includes a base 100, a transmission spindle 200, an action mechanism 300, an opening spring 400, a holding mechanism 500, a shunt release 600 and an auxiliary switch 700.
[0038] The base 100 includes a fixed platform 110, two fixed plates 120 fixed side by side on the fixed platform 110, a first fixed shaft 140 and a second fixed shaft fixed between the two fixed plates 120 130.
[0039] The transmission main shaft 200 is rotatably connected to the two fixed plates 120, and the left and right ends of the transmission main shaft 120 respectively protrude out of the two fixed plates 120 to connect with the actuator of the vacuum contactor. In this embodiment, a bearing may be connected between the transmission spindle 200 and the fixing plate 120 to reduce the frictional force of relative rotation. A moving crank arm 210 , an energy storage crank arm 220 and a holding crank arm 230 ...
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The invention discloses an electromagnetic mechanism of a vacuum contactor. The electromagnetic mechanism comprises a base, a transmission main shaft, an acting mechanism, a breaking spring and a retaining mechanism, wherein the transmission main shaft is pivotally arranged and passes through the base, and is provided with an acting crankarm, a power storing crankarm and a retaining crankarm; the acting mechanism comprises an electromagnetic actuator, a working seat and a pivoting part pivotally connected with the working seat and the acting crankarm; and the electromagnetic actuator can be matched with the working seat to pull the acting crankarm through the pivoting part so as to drive the transmission main shaft to rotate positively for realizing switch-on; the breaking spring is connected with the power storing crankarm and the base; when the transmission main shaft rotates positively and is switched on, the breaking spring is tensioned to store energy; during breaking, the breaking spring releases energy to drive the transmission main shaft to rotate reversely for realizing switch-off; and the retaining mechanism is connected with the retaining connecting level and the base and is used for retaining the transmission main shaft in the switch-on state during switching on and releasing during switching off. The invention has the advantages that: the mechanism has high expansibility; and when the phase distance of the contactor varies, the requirement can be met only by changing the size of the transmission main shaft.
Description
technical field [0001] The invention relates to an electromagnetic mechanism of a switchgear, in particular to an electromagnetic mechanism of a vacuum contactor. Background technique [0002] Most of the driving mechanisms of the existing vacuum contactors adopt snap-in electromagnetic mechanisms. The snap-in electromagnetic mechanism has the following disadvantages: 1. The mechanism takes up a large space and has a complex structure; 2. Vacuum contactors of different levels have poor scalability and cannot be modularized; 3. The service life is short. Contents of the invention [0003] The invention provides an electromagnetic mechanism for a vacuum contactor, which overcomes the shortcomings of the snap-fit electromagnetic mechanism in the background art. [0004] The adopted technical scheme that the present invention solves its technical problem is: [0005] Electromagnetic mechanism of vacuum contactor, which includes: [0006] a base; [0007] a drive shaft pi...
Claims
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IPC IPC(8): H01H33/666
Inventor 吴崇文黄顺进何宝华
Owner 厦门市恒源新电力设备有限公司