A single pole vacuum contactor
A vacuum contactor, single-pole technology, used in high-voltage air circuit breakers, high-voltage/high-current switches, electrical components, etc., can solve the problems of unstable coil voltage, shortened contactor life, and easy aging of the insulation layer, reducing The effect of heating phenomenon, improving service life and prolonging service life
Active Publication Date: 2019-01-15
上海翔洲电气科技有限公司
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Problems solved by technology
However, if the resistance is connected in series with the coil, the voltage of the coil is often unstable, and the heating of the coil is very serious, which not only wastes electric energy, but also shortens the life of the contactor due to the aging of the insulating layer of the coil at high temperature.
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Embodiment Construction
[0026] The monopolar vacuum contactor of the present invention will be further described in detail below in conjunction with specific drawings.
[0027] Such as figure 1 and figure 2 As shown, the single-pole vacuum contactor of the present invention includes an insulating frame 10 and a cover 20 arranged above the insulating frame 10. The insulating frame 10 is provided with a vacuum interrupter system 1, an electromagnetic system 2, and a transmission pressure system. , an anti-destructive and dust-proof auxiliary switch (not shown in the figure) and an autotransformer rectification energy-saving control module 4, the transmission pressure system includes a return force spring 31, an overtravel spring 32, and a movable push rod 34 arranged from left to right in turn and anti-closing bouncing spring 33, the vacuum arc extinguishing system 1 includes an insulating housing 12, the anti-closing bouncing spring 33 is placed in the insulating housing 12, and the autotransformer ...
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The invention relates to a single-stage vacuum contactor. The single-stage vacuum contactor comprises an insulating frame and a cover lid arranged on the insulating frame. A vacuum arc extinguishing system, an electromagnetic system, a self-coupling voltage transformation rectification energy saving control module connected with the electromagnetic system, a transmission pressure system and an anti-damage dustproof auxiliary switch. The transmission pressure system comprises a return spring, an overtravel spring, a movable ejector rod and an anti-closing bounce spring which are arranged from left to right in order. The vacuum arc extinguishing system comprises an insulating shell body. The anti-closing bounce spring is arranged in the insulating shell body. A transformer is arranged in the self-coupling voltage transformation rectification energy saving control module. The electromagnetic system comprises a coil. The coil is arranged at the periphery of the return spring. An overtravel ejector rod is arranged between the overtravel spring and the return spring. The above structure is employed, the beneficial effects are that the structure is firm and reliable and the product service life is long.
Description
technical field [0001] The invention relates to a contactor, in particular to a single-pole vacuum contactor. Background technique [0002] Vacuum contactor is an automatic control electrical appliance. It uses an insulating shell to extinguish the arc. It is mainly used for frequently connecting or breaking AC and DC circuits. It has a large control capacity and can be operated from a long distance. It can be used with relays to achieve timing operations and interlocking. Control, various quantitative control and loss of voltage and undervoltage protection are widely used in automatic control circuits. The main control object is the motor, and it can also be used to control other electrical loads, such as electric heaters, lighting, electric welding machines, capacitor banks, etc. The vacuum contactor has the characteristics of strong arc extinguishing ability, good pressure resistance, high operating frequency, long life, no arc spraying, small size and light weight. [0...
Claims
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IPC IPC(8): H01H33/666H01H33/66
CPCH01H33/66H01H33/6662
Inventor 李华旺黄秋平朱晓勇雷兵
Owner 上海翔洲电气科技有限公司