Permanent magnetic mechanism vacuum opening and closing device
A technology of permanent magnet mechanism and gate device, which is applied in the direction of high-voltage air circuit breakers, electrical components, electric switches, etc., can solve the problems of misoperation of spring operating mechanism, complicated transmission mechanism, high manufacturing process requirements, etc., and achieve the goal of reducing the quantity Effect
Active Publication Date: 2017-01-04
ASIA ELECTRICAL POWER EQUIP SHENZHEN CO LTD
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Problems solved by technology
The operating mechanism is one of the key core components in the medium-voltage ring network cabinet. However, the spring operating mechanism has the following disadvantages: closing is achieved by means of a locking mechanism after the closing spring is stretched and stored by the motor or manpower. Relying on mechanism transmission, the total number of parts is large, the transmission mechanism is relatively complex, the manufacturing process requirements are high, and there are many sliding friction surfaces. The wear, corrosion, loss and solidification of these parts will cause the spring operating mechanism to operate incorrectly. unpredictable consequences
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[0037] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be further described below in conjunction with the accompanying drawings.
[0038] Such as figure 1 with figure 2 As shown, a permanent magnet mechanism vacuum opening and closing device 1 includes a permanent magnet operating mechanism 20 , a vacuum circuit breaker 30 , a rotating shaft 40 and a cabinet 10 .
[0039] Such as Figures 2 to 6 As shown, the permanent magnet operating mechanism 20, the permanent magnet operating mechanism 20 includes a housing 201, a mandrel 204, an electromagnetic coil 212, a moving iron core 213, a static iron core 202 and a permanent magnet 214, and the mandrel 204 runs through the housing 201 , the moving iron core 213, the static iron core 202 and the electromagnetic coil 212 are all set in the casing 201, the moving iron core 213 is fixedly ...
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The invention discloses a permanent magnetic mechanism vacuum opening and closing device, which comprises a permanent magnetic operating mechanism, a vacuum circuit breaker and a rotating shaft, and is characterized in that a movable iron core is attracted to a static iron core under the action of magnetic field attraction when an electromagnetic coil in the permanent magnetic operating mechanism is electrified, the movable iron core and a permanent magnet are mutually attracted, an ejector rod is driven by the movable iron core to extend towards the lower side of a shell, the ejector rod drives a pull rod in the vacuum circuit breaker to move downward through the rotating shaft, and the vacuum circuit breaker stays at a closing state; and the electromagnetic coil is reversely electrified, magnetic field repulsion is generated between the movable iron core and the static iron core, the movable iron core drives the ejector rod to extend towards the direction of a top cover under the action of the magnetic field repulsion and an electric switch opening force, the ejector rod drives the pull rod to move upward through the rotating shaft, and the vacuum circuit breaker stays at an opening state. The permanent magnetic mechanism vacuum opening and closing device has the advantage that wires in an inlet wire guide pipe and a busbar guide pipe can be connected or disconnected respectively through manually opening a cam mechanism or powering on / off the electromagnetic coil.
Description
technical field [0001] The invention relates to a medium-voltage ring network cabinet, in particular to a vacuum opening and closing device of a permanent magnet mechanism. Background technique [0002] In the medium voltage ring network cabinet, the solid insulation ring network cabinet has been defined as a pollution-free green product, and the product has very little impact on the human living environment. Among them, the arc extinguishing method is vacuum arc extinguishing, which will not emit pollutants. Liquid, no gas released into the atmosphere, is a zero-emission, zero-pollution, high-tech, clean energy, clean, and environmentally friendly green power product. [0003] At present, most of the known medium-voltage ring network cabinets use spring operating mechanisms. The operating mechanism is one of the key core components in the medium-voltage ring network cabinet. However, the spring operating mechanism has the following disadvantages: closing is achieved by mea...
Claims
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Login to View More IPC IPC(8): H01H33/666
CPCH01H33/6661
Inventor 郭予龙高向华杜立春
Owner ASIA ELECTRICAL POWER EQUIP SHENZHEN CO LTD