CN213585127U

CN213585127U - Intelligent circuit breaker with 1% precision

Info

Publication number: CN213585127U
Application number: CN202022008844.4U
Authority: CN
Inventors: 徐江华; 黄家琪
Original assignee: Hangzhou Jieti Technology Co ltd
Current assignee: Hangzhou Jieti Technology Co ltd
Priority date: 2020-09-14
Filing date: 2020-09-14
Publication date: 2021-06-29
Anticipated expiration: 2030-09-14

Abstract

The utility model discloses an intelligent circuit breaker with 1% precision, including main control unit, switch, supply circuit, signal amplifier, the main control unit electricity is connected with data memory, LCD, test interface, its characterized in that: all be provided with one-level current coil on each branch road output wire of switch, each one-level current coil all is connected with the main control unit electricity after signal amplification circuit enlargies, all overlaps on each one-level current coil to be equipped with second grade current acquisition coil, each second grade current acquisition coil all is connected with the measurement chip electricity, the measurement chip is connected with the main control unit electricity. The utility model discloses the collection precision that the measurement chip, the second grade acquisition current of joining can improve the electric current satisfies the demand in market.

Description

Intelligent circuit breaker with 1% precision

Technical Field

The utility model relates to a circuit breaker technical field especially relates to an intelligent circuit breaker with 1% precision.

Background

With the rapid development of modern communication technology and computer network technology, the development of product intelligence is promoted, and the concept of intelligence is gradually permeated into all industries. The power industry is also developing towards intellectualization, and a new generation of low-voltage electrical appliances which are mainly characterized by intellectualization, modularization and communication will become a mainstream product in the market. In recent years, different enterprises and companies develop intelligent circuit breakers with different types, and the requirements of markets and users are continuously met. However, as the old demand is met, new demands are also put forward — people have more urgent demands for high-precision intelligent circuit breakers. Therefore, i have developed intelligent circuit breakers with "1% accuracy". The circuit breaker is developed on the basis of the original intelligent circuit breaker, and aims to meet the requirement of national network on high precision.

The existing intelligent circuit breaker is not in line with the precision of new requirements, and far away from the precision of 1%, and the intelligent circuit breaker with the precision of 1% is designed aiming at the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an intelligent circuit breaker with 1% precision possesses the advantage of high accuracy, has solved the precision that current intelligent circuit breaker is not conform to new demand, does not reach the problem of "1% precision" far away.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an intelligent circuit breaker with 1% precision, includes main control unit, switch, supply circuit, signal amplifier, and the main control unit electricity is connected with data memory, LCD, test interface, its characterized in that: all be provided with one-level current coil on each branch road output wire of switch, each one-level current coil all is connected with the main control unit electricity after signal amplification circuit enlargies, all overlaps on each one-level current coil to be equipped with second grade current acquisition coil, each second grade current acquisition coil all is connected with the measurement chip electricity, the measurement chip is connected with the main control unit electricity.

Furthermore, the power supply access end of the power supply circuit obtains power from the switch power supply access position, and the output end of the power supply circuit is fixedly connected with the main controller, the metering chip and the liquid crystal display.

Compared with the prior art, the utility model beneficial effect who has is:

1. the added metering chip and the secondary acquisition current can improve the acquisition precision of the current and meet the market demand;

2. research and development are carried out under the condition that the functions of the original intelligent circuit breaker are reserved, so that the circuit breaker not only reserves the good human-computer interaction, simple and convenient operation mode and various functions of the original circuit breaker, but also improves the current to reach the level of 1%; moreover, on the basis, the accuracy of the current and the voltage is improved, so that the power detection is more accurate; therefore, the defect of low precision of the intelligent circuit breaker is overcome, and the requirement of the market can be met to a great extent.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a circuit function of an intelligent circuit breaker with a precision of 1% according to the present invention;

FIG. 2 is a circuit diagram of a single chip microcomputer and a part of the connected circuit;

FIG. 3 is a circuit diagram of a metrology chip and a portion of the connections;

FIG. 4 is a circuit diagram of a primary current collection terminal;

FIG. 5 is a partial power supply circuit diagram;

FIG. 6 is a circuit diagram of the connection of the data memory;

fig. 7 is a circuit diagram of a secondary current collection terminal block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, an intelligent circuit breaker with 1% precision comprises a main controller, a switch, a power supply circuit, a signal amplifier, wherein the main controller is electrically connected with a data memory, a liquid crystal display, and a test interface, and is characterized in that: all be provided with one-level current coil on each branch road output wire of switch, each one-level current coil all is connected with the main control unit electricity after signal amplification circuit enlargies, all overlaps on each one-level current coil to be equipped with second grade current acquisition coil, each second grade current acquisition coil all is connected with the measurement chip electricity, the measurement chip is connected with the main control unit electricity.

The power supply circuit power supply access end gets power from the switch power supply access position, and the output end of the power supply circuit is fixedly connected with the main controller, the metering chip and the liquid crystal display.

The metering chip adopts ATT7022 EU;

friendly interactive functions: the intelligent circuit breaker of "1% precision" adopts the LCD screen to show information, and the circuit breaking controller is as electronic product, has lacked the interaction between the same family, and the display screen can audio-visually show information such as current and voltage, and when the circuit appears unusually, unusual reason can be through the expression of characters on the display screen, and the user just can understand very easily, has brought the convenience for user's use like this. Friendly interactive page in the schematic diagram, the liquid crystal display module and the data memory in the circuit provide technical support.

A storage function: the electronic molded case circuit breaker controller can protect a circuit, has a storage function, can record the reclosing condition of the circuit breaker within a period of time, can record the tripping times and the tripping reasons, and can be conveniently managed by a user by knowing the actual condition of the circuit breaker within a period of time in the past through inquiring the circuit breaker. The memory function is supported by the data memory module and the liquid crystal display module in the circuit diagram.

Self-diagnosis function: when the circuit is abnormal, the electronic plastic shell circuit breaking controller can prompt the reason of the abnormality when the circuit is electrified again besides the circuit breaking, so that a user can quickly troubleshoot the problem, and the working efficiency of the user is improved. The circuit is controlled by a test interface, a data memory, a main controller and a liquid crystal display module.

High accuracy detects the function: the intelligent circuit breaker with the precision of 1% is specially provided with a metering chip for enhancing the precision, and the metering processing chip is added on the basis of the original single chip microcomputer, so that the precision requirement is greatly improved, meanwhile, more current detection circuits are adopted, the accuracy is improved, and the safety is greatly improved.

The communication function is as follows: the electronic molded case circuit-breaking controller has the 458 communication function, so that the version upgrading of the circuit-breaking controller is facilitated, the remote monitoring can be realized, and the intelligent development of products is realized. In the schematic diagram, a main controller, a port, a test interface and a data storage module provide technical support.

The details of the present invention are well known to those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an intelligent circuit breaker with 1% precision, includes main control unit, switch, supply circuit, signal amplifier, and the main control unit electricity is connected with data memory, LCD, test interface, its characterized in that: all be provided with one-level current coil on each branch road output wire of switch, each one-level current coil all is connected with the main control unit electricity after signal amplification circuit enlargies, all overlaps on each one-level current coil to be equipped with second grade current acquisition coil, each second grade current acquisition coil all is connected with the measurement chip electricity, the measurement chip is connected with the main control unit electricity.

2. The intelligent circuit breaker with 1% precision according to claim 1, characterized in that: the power supply circuit power supply access end gets power from the switch power supply access position, and the output end of the power supply circuit is fixedly connected with the main controller, the metering chip and the liquid crystal display.