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Intelligent fuse

A fuse and intelligent technology, applied in electrical components, circuits, emergency protection devices, etc., can solve the problems of poor anti-interference ability and working reliability of leakage circuit breakers, damage to the communication unit circuit and sub-communication unit circuit, etc., and achieve external interference. small effect

Inactive Publication Date: 2017-07-07
赵群英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More seriously, if the input signal is disturbed by external strong electricity, it may cause damage to the entire communication unit circuit and the sub-communication unit circuit
The anti-interference ability and working reliability of the leakage circuit breaker are poor

Method used

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Embodiment Construction

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0012] Please refer to the structural representation of the smart fuse figure 1 , an intelligent fuse, including a housing 1, a lower three-phase line terminal 2, an upper end three-phase line terminal 3, a power switch 4, a display screen 5, an alarm light 6, a relay alarm horn 7 and a built-in control circuit board (in the figure not shown), the lower end cover and the upper end cover of the housing 1 are respectively provided with four lower three-phase lin...

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Abstract

The invention discloses an intelligent fuse. The power switch is located in the middle of the front of the housing, and the left and right sides are respectively provided with a display screen and an alarm lamp. The right side of the housing is provided with a relay alarm horn. The built-in control circuit board is located inside the housing; an intelligent control unit is provided in the intelligent fuse, and the intelligent control unit is connected to the auxiliary power supply; The unit includes a fuse state detection unit, a fuse current detection unit, a central control unit, a light alarm output circuit and a relay alarm output circuit, and both the fuse state detection unit and the fuse current detection unit are connected to the central control unit. The intelligent fuse can perform circuit alarm and relay light alarm on the circuit in time, which is safer, adopts separate communication unit circuit and sub-communication unit circuit, less external interference is received, and is more reliable.

Description

technical field [0001] The invention relates to the technical field of fuses, in particular to an intelligent fuse. Background technique [0002] Fuses are a simple but effective way to protect electrical appliances. It mainly plays the role of short circuit protection in the circuit. The fuse is mainly composed of a melt and an insulating tube (insulation seat) for installing the melt. When in use, the principle of the fuse is to use the current to flow through the conductor to cause the conductor to heat up. After reaching the melting point of the conductor, the conductor melts, so the circuit is disconnected to protect the electrical appliances and the circuit from being burned out. It is an accumulation of heat, so overload protection can also be achieved. Once the melt burns out, the melt should be replaced. However, there is no external display and alarm for the blown state of the fuse in the current fuses. In addition, the communication circuits of the existing le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/32
CPCH01H85/32
Inventor 赵群英
Owner 赵群英
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