Automatic Restoration Power Fuses
An automatic recovery and fuse technology, applied in the direction of automatic disconnection of emergency protection devices, circuits, electrical components, etc., can solve the problems of fuse fuse overload blowing, excessive current, manual replacement, etc., to reduce power failure. time, the effect of speeding up circuit conduction, and speeding up cooling
Active Publication Date: 2020-12-22
哈尔滨光宇电气自动化有限公司
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AI Technical Summary
Problems solved by technology
[0002] In the power system, it is usually necessary to set a fuse to prevent excessive current in the power system from causing damage to the line. In real life, short-circuiting of electrical appliances and lightning will cause instantaneous excessive current in the power system, resulting in fusing in the fuse Wire overload fuse
[0003] For the current fuse-type fuse, after the fuse is overloaded and blown, it is necessary to manually replace the fuse or fuse tube to restore the circuit, which will cause great trouble to ordinary residents
Method used
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Embodiment 2
[0022] refer to figure 2 , and the difference from Embodiment 1 is that the housing 1 is located on the right side of the sliding chamber and is provided with a device chamber 12, the device chamber 12 is sealed and slidably connected with a slider 13, the elastic airbag 4 is arranged in the device chamber 12, and the elastic airbag 4 can be Extend and expand in the horizontal direction, and the left end of the elastic airbag 4 is fixedly connected on the side wall of the slider 13. The inner wall of the housing 1 is provided with a plurality of arc-shaped cavities 11, and two adjacent arc-shaped cavities 11 communicate with each other. The shaped cavities 11 are arranged along the circumference of the sliding cavity, the leftmost arc-shaped cavity 11 communicates with the outside world, and the rightmost arc-shaped cavity 11 communicates with the device cavity 12 .
[0023] In this embodiment, during the reset process of the sliding plug 9, the sliding block 13 will move to ...
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The invention discloses an automatic recovery type power fuse which comprises a shell, wherein binding posts are arranged at the upper end and the side wall of the shell in a penetrating manner; mercury is arranged in the shell; the mercury submerges the two binding posts at normal temperature and is positioned at one end in the shell; a sliding cavity is formed in the side wall of the shell; a sliding plug is connected in the sliding cavity in a sealing and sliding manner; a heat-conducting plate is arranged between the inner bottom of the shell and the sliding cavity; a low-boiling-point evaporation liquid is arranged at the left end part of the sliding cavity, which is positioned at the sliding plug; and the right end of the sliding cavity is communicated with the shell through an air duct. When the current in the circuit is instantaneously overhigh, mercury is extruded into the elastic air bag through the two-way pressure valve by the evaporation of the low-boiling-point evaporation liquid, so that the circuit is cut off; and after the temperature is reduced, the sliding plug is reset, the mercury in the elastic air bag enters the shell again, so that the binding post at the upper end of the shell is submerged in the mercury, and the circuit is conducted again.
Description
technical field [0001] The invention relates to the technical field of fuses, in particular to an automatic recovery type power fuse. Background technique [0002] In the power system, it is usually necessary to set a fuse to prevent excessive current in the power system from causing damage to the line. In real life, short-circuiting of electrical appliances and lightning will cause instantaneous excessive current in the power system, resulting in fusing in the fuse The wire is overloaded and blown. [0003] For the current fuse-type fuse, after the fuse is overloaded and blown, it is necessary to manually replace the fuse or fuse tube to restore the circuit, which will cause greater trouble to ordinary residents. Contents of the invention [0004] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a self-recovery type power fuse, which can squeeze mercury through the two-way pressure valve through the evaporation of the low-bo...
Claims
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IPC IPC(8): H02H3/06H01H85/06
Inventor 连碧真
Owner 哈尔滨光宇电气自动化有限公司