Switching device for automatically-switching switching apparatus

Abstract

The invention discloses a switching device for an automatically-switching switching apparatus, which comprises a lower plate, an upper plate, a main gear, an odd number of intermediate gears, two switching gears, a plurality of supporting posts and a clutch gear, wherein arc-shaped protrusions are formed on the edge parts of the front end faces of the switching gears, the middle parts of the switching gears are provided with central posts and triggering poles which are shaped like triangular plates, the front ends of the triggering poles are arranged on the protrusions and close to the outer sides f contacts f a microswitch, round holes are formed in the middle parts of the triggering poles, and regulating holes are formed on the rear ends. In the switching device for the automatically-switching switching apparatus, the consistency between the switching on time of an electrical switch and the stopping time of a motor is ensured by reducing the length of the protruding arcs on the front end faces of the switch gears and adjusting the distance between the front ends of the triggering poles and the protrusions; therefore, the motor is prevented from stopping too early and impeding the switching on of the electrical switch so as to ensure the normal function of a product, and the motor is prevented from stopping far behind the switching on of the electrical switch to ensure the service life of the produce.

Description

technical field [0001] The invention belongs to the technical field of power conversion devices, and in particular relates to a conversion device used for automatic transfer switch electrical appliances. Background technique [0002] An automatic transfer switching device is an independent low-voltage switching device that is used to monitor the power circuit and automatically transfer one or several load circuits from one power source to another to ensure continuous operation of important load power sources. Currently commonly used automatic transfer switch appliances mainly include two electrical switches, a motor as a power source, a controller, and two micro switches for controlling the action of the motor, and the motor is located between the two electrical switches. An automatic transfer switch is usually equipped with a transfer device for switching two electrical switches. figure 1 It is a structural schematic diagram of a conversion device submitted at the same tim...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned switching device has the following problems: if the pop-up time of the contact 13 on the microswitch 10 is earlier than the closing time of the electric switch, the motor 9 will be shut down in advance, thereby causing the electric switch to fail to close, and as a result the product If the pop-up time of the contact 13 on the microswitch 10 is later than the closing time of the electrical switch, the motor 9 will not stop after the electrical switch is closed, and the electrical switch will be over-closed, which will lead to Reduced service life of electrical switches

However, due to the existence of manufacturing errors and assembly errors, the closing position of the electrical switch will inevitably be not fixed, that is, there is a fluctuation range

The traditional solution is to ensure that the pop-up time of the contact 13 on the microswitch 10 is far later than the closing time of the electric switch by design, that is, the method of lengthening the arc length of the protrusion 11 on the switch gear 5 is adopted to ensure that the electric switch It can be closed, but at the cost of reducing the service life of the product

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