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Drawer function position conversion interlocking control mechanism and interlocking control method of switch cabinet

A technology of interlocking control and functional location, which is applied in the direction of switchgear, pull-out switchgear, electrical components, etc., can solve problems such as misoperation, imperfect locking function, and non-compliance with the high safety and reliability of nuclear power plants, so as to prevent accidents, The effect of ensuring accuracy

Active Publication Date: 2015-08-19
广东正超电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the drawer of the existing low-voltage withdrawable switchgear may be misoperated during the process of advancing or withdrawing along the longitudinal direction, and the locking function is not perfect, which does not meet the high safety and reliability requirements of nuclear power plants.

Method used

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  • Drawer function position conversion interlocking control mechanism and interlocking control method of switch cabinet
  • Drawer function position conversion interlocking control mechanism and interlocking control method of switch cabinet
  • Drawer function position conversion interlocking control mechanism and interlocking control method of switch cabinet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] figure 1 , figure 2 , image 3 As shown, the drawer function position conversion interlocking control mechanism of the switch cabinet includes a circuit compartment 1, and the circuit compartment 1 is provided with a horizontal laminate 11 and a vertical partition 12, and each circuit compartment 1 is installed in a corresponding longitudinally movable There is a drawer 2, and the longitudinal movement trajectory of the drawer 2 includes a separation position, a test position and a connection position, wherein the separation position is located in front of the test position, and the test position is located in front of the connection position, where figure 1 Drawer 2 is in the connected position, figure 2 Drawer 2 is in test position, image 3 The drawer 2 is in a separated position; the drawer 2 is provided with a drawer bottom plate 21, and a mounting plate 24 is fixedly attached to the drawer bottom plate 21. The drawer bottom plate 21 and the mounting plate 24 ...

Embodiment 2

[0080] An interlock control method for switch cabinet drawer function position conversion, using the switch cabinet drawer function position conversion interlock control mechanism of the first embodiment, including the following steps in turn:

[0081] (1) In the initial state, the drawer 2 stays at the separated position. At this time, under the action of the torsion force of the reset torsion spring 43, the positioning pin 32 of the swing frame is inserted into the first right-angle notch 71 of the positioning seat, and the longitudinal position of the drawer is locked. Such as Figure 16 As shown; while the horizontal position of the lock hole 33 of the swing frame and the lower end point A of the lock pin 52 is staggered, the driven rod 53 of the vertical sliding assembly is located at the first wave trough 91 position of the positioning seat, and the lower end point A of the lock pin 52 Press directly on the upper surface of the swing frame 3, and the weight of the vertic...

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Abstract

The invention relates to a drawer function position conversion interlocking control mechanism and interlocking control method of a switch cabinet. The drawer function position conversion interlocking control mechanism comprises loop separation chambers; each loop separation chamber is provided with a drawer; a swing frame is installed above a drawer bottom plate in a horizontally-swingable manner; the swing frame is provided with a vertical positioning pin; a locking hole is formed in the swing frame; a slider is installed above the drawer bottom plate in a vertically-sliding manner; the slider is fixedly connected with a vertical locking pin and a vertical driven rod; the slider, the driven rod and the locking pin form an integrated vertical sliding assembly; a horizontal laminate of the loop separation chamber is fixedly provided with a positioning seat; one side of the positioning seat, which is adjacent to the swing frame, is provided with a first right-angle gap, a second right-angle gap and a third right-angle gap; the upper surface of one side of the positioning seat which is far away from the swing frame is in a wavy contour; and a button rod which pushes the swing frame to swing around the swing axis of the swing frame is also provided; and the swing frame is provided with a return spring. The invention also provides an interlocking control method. With the drawer function position conversion interlocking control mechanism and interlocking control method of the switch cabinet of the invention adopted, the conversion operation actions of a drawer function position can realize reliable locking assuredly, and mis-operation operation can be avoided.

Description

technical field [0001] The invention belongs to the technical field of power switch cabinets, and in particular relates to an interlocking control mechanism and an interlocking control method for switch cabinets used in nuclear power plants for function position conversion of drawers. Background technique [0002] Nuclear-grade low-voltage switchgear is a kind of power distribution equipment that requires extremely high operational safety and reliability. It is required to be capable of various safety locks to ensure the correctness and safety of operation. The nuclear-grade low-voltage switchgear is generally designed as a drawer type, including multiple circuit compartments. The circuit compartments are equipped with horizontal laminates and vertical partitions. Each compartment is equipped with a drawer, and electrical components are installed in several In the drawer, when the drawer is loaded into the circuit compartment, the primary and secondary joints form an electri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/133
CPCH02B11/133
Inventor 吴厚烽纪桂强陈炎亮庄楚明黄燕彬苏章楷
Owner 广东正超电气有限公司