High-safety electric operation drawer unit

Abstract

The invention relates to a high-safety electric operation drawer unit. The high-safety electric operation drawer unit comprises a drawer type switch cabinet, the drawer is provided with a bottom plateand a front panel located on the front side of the bottom plate, a lead screw extending front and back is rotationally installed on the drawer, a guide seat meshed with the lead screw is arranged ina drawer hole, the front panel is provided with a rocking handle insertion hole which is through in the front-back direction and corresponds to the lead screw, a rocking handle capable of being inserted into and pulled out of the rocking handle insertion hole is mounted in the front panel, the rocking handle and the lead screw are provided with a torque transmission mechanism for synchronously rotating the rocking handle and the lead screw, a limiting baffle capable of shielding and exposing the rocking handle insertion hole is installed on the front side of the front panel in a left-right sliding mode, a push plate is installed on the rear side of the front panel in a left-right sliding mode and corresponds to the limiting baffle, a microswitch is installed on the push plate, and an ejector rod corresponding to a contact of the microswitch is installed on the drawer. The electrical operation drawer unit is additionally provided with a mechanical unlocking mechanism, so that electricalmechanical locking is formed, the on-load operation of the whole set of components of the electrical operation mechanism is avoided, and the personal safety of operators and the reliable operation ofequipment are ensured.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a high-safety electric drawer unit. Background technique [0002] With the rapid development of low-voltage cabinet products in recent years, as well as the growing urgent needs and ardent hopes of high-end users for electrical safety, the original intention of researching and manufacturing high-safety low-voltage cabinets is to meet the needs of the development of the times, resolutely implement the people-oriented principle and always put Strategic considerations in the first place. [0003] At present, the anti-misoperation interlocking mechanism of most of the drawer units that adopt the pull-out type is designed based on the manual operation mode, which is not applicable to the anti-misoperation interlocking mechanism under the electric operation mode. Because the electric operation drawer has no handle and its supporting interlocking mechanism measures, it is very unsaf...

AI Technical Summary

Problems solved by technology

Because the electric operation drawer has no handle and its supporting interlocking mechanism measures, it is very unsafe. Some users do not know the precautions. The electric operation drawer can be pulled out directly when it is charged, which is very dangerous and has a great potential safety hazard.

However, due to structural problems, the electric control circuit of the drawer is easy to operate with power on, and there is no mechanical lock. Therefore, the closing and opening can only be operated through the electrical circuit, so there is no way to prevent the electric control from being pulled out to the test position when it is in the working position closing state , when the electric control circuit of the drawer is drawn out under the closing condition, the live operation does not conform to the maintenance test regulations at this time, and there are unsafe operations and unstable operation of the power circuit, which may easily cause low-voltage power distribution system failure or personal accidents.

[0004] The electric drawer unit made by some manufacturers adds another miniature circuit breaker and a set of interlocking mechanism, which makes the structure complex and adds two costs. The cost is too high and wastes cost, which is not in line with the mainstream sustainable development of today's saving. idea

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