CN203014343U

CN203014343U - Leakage protection system apparatus

Info

Publication number: CN203014343U
Application number: CN 201220688105
Authority: CN
Inventors: 张涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2013-06-19
Anticipated expiration: 2022-12-13

Abstract

A leakage protection system apparatus comprises a power supply, switches, drivers, an electric appliance, leakage probes, electrical-optical converters, optical-electrical converters, a one-chip microcomputer module, an FPGA module, and an alarm module. The aforementioned components are connected through lead wires, cables, or couplers. The power supply is connected with the electric appliance through the switches. The electric appliance contacts or connects with the leakage probes. The leakage probes are respectively connected with a voltage divider and a current sensor. The voltage divider and the current sensor are connected in parallel and then connected with the FPGA module through a processing circuit. The FPGA module has one path connected with the alarm module, one path connected with one switch through the corresponding electrical-optical converter, the corresponding optical-electrical converter, and the corresponding driver, and one path connected with the one-chip microcomputer module. The one-chip microcomputer module has one path connected with a computer and the other path connected with the other switch through the corresponding electrical-optical converter, the corresponding optical-electrical converter. The switches are connected with the drivers.

Description

A kind of leakage protection system device

Technical field

The utility model relates to the earth leakage protective device product of a kind of electric product, particularly a kind of electric heater.

Background technology

According to authoritative institution's statistics, there is Electrical Safety hidden danger in the family of 70% left and right of China.Since nineteen ninety-seven, the electric heater casualty accident occurs up to more than 1000 in China every year, and the consumer complains approximately 5900.But through the quality inspection organization test, the electric heater that major part is hurted sb.'s feelings all meets national standard, belongs to qualified products.The electric heater standard existing according to country all write the caveat of " forbidding to use " on its specification exactly in the unreliable situation of ground wire, yet this do not cause most consumers' generally attention.And the earth leakage protective of existing electrical equipment; only be conceived to the earth leakage protective of electrical equipment itself; but be not conceived to protection or the caution of the electric leakage that produces in the environment for use of electrical equipment; after having caused the generation of some security incidents; and user or victim or its family members or the obligee of relevant electrical equipment are difficult to effectively obtain legal reparation.This phenomenon is in the electric heater industry, and is obvious especially.The loss of life or personal injury that cause because of electric heater electric leakage and the accident of property loss constantly produce.Simultaneously; lack of standardization due to the power construction program that causes because of a variety of causes in actual power construction and technology; do not have actual ground connection etc. as earth connection particularly; and the earth leakage protective of present TV university initiatively realizes by ground connection, and the earth-free earth leakage protective of electrical equipment that just caused of electrical equipment earth connection is lost de-protected function.

Summary of the invention

the utility model is for the earth leakage protective above-mentioned deficiency of existing electrical equipment, and a kind of new thinking scheme has been proposed, invented a kind of leakage protection system device, with the environment of earth leakage protective expanded range to electrical equipment itself and electrical equipment use, by current probe and voltage detector are arranged in the environment that reaches the electrical equipment use on electrical equipment, when the curtage of any one position or position surpasses certain standard and before may be to the human body injury, namely cut off the general supply of the power utilization environment of the power supply of electrical equipment or electrical equipment by relevant device, allow earth leakage protective and electrical equipment whether have ground connection irrelevant, thereby guarantee electrical equipment user's personal safety and the safety of electrical equipment itself.Concrete scheme is: a kind of electric leakage system and device, comprise power supply, switch, driver, electrical equipment, electric leakage probe, electric to optic converter J1, J2, light/electric transducer K1, K2, one-chip computer module, FPGA module, alarm module, above-mentioned components and parts connect by wire, cable or coupling, power supply is connected with electrical equipment through switch, electrical equipment contacts or is connected with the electric leakage probe, electric leakage probe is connected with current sensor with voltage divider respectively, is connected with the FPGA module by treatment circuit after voltage divider and current sensor parallel connection; Described FPGA module one tunnel is connected with alarm module, leads up to electric to optic converter J2, light/electric transducer K2, driver Q2 to be connected with switch S 2, and one the tunnel is connected with one-chip computer module; Described one-chip computer module one tunnel is connected with computer, and another road is connected with switch S 1 by electric to optic converter J1, light/electric transducer K1, driver Q1; Described switch is connected with described driver.

The usefulness of this practicality invention is: the environment for use to electrical equipment itself and electrical equipment is carried out earth leakage protective, has effectively protected electrical equipment end user's personal safety.。

Description of drawings

1 one kinds of leakage protection system device schematic diagrames of accompanying drawing.

In accompanying drawing 1, electric to optic converter J1, J2, light/electric transducer K1, K2, driver Q1, Q2, switch S 1, S2.

Embodiment

One of execution mode by reference to the accompanying drawings: a kind of electric leakage system and device, comprise power supply, switch, driver, electrical equipment, electric leakage probe, electric to optic converter J1, J2, light/electric transducer K1, K2, one-chip computer module, FPGA module, alarm module, above-mentioned components and parts connect by wire, cable or coupling; Power supply is connected with electrical equipment through switch, and electrical equipment contacts or is connected with the electric leakage probe, and leaking electricity pops one's head in is connected with current sensor with voltage divider respectively, is connected with the FPGA module by treatment circuit after voltage divider and current sensor parallel connection; FPGA module one tunnel is connected with alarm module, leads up to electric to optic converter J2, light/electric transducer K2, driver Q2 to be connected with switch S 2, and one the tunnel is connected with one-chip computer module; One-chip computer module is leaded up to electric to optic converter J1, light/electric transducer K1 and is connected with other switch S 1; Described switch is connected with described driver; Computer is connected with one-chip computer module.described electric leakage probe is conductor, be placed in the environment that reaches electrical equipment on electrical equipment, after power-on, above-mentioned electrical equipment and element are started working, under the manufacturing of voltage divider and current sensor FPGA module, pop one's head in by electric leakage, in the power utilization environment of detection electrical equipment and electrical equipment, whether electric current is arranged, thereby whether monitoring circuit and power utilization environment leak electricity or are charged, when electric leakage in electrical equipment and power utilization environment or when charged, and electric current surpasses certain parameter, in the time of may damaging human body, pass through synchronous trigger module or one-chip computer module by FPGA, light/electric transducer and electric to optic converter, send signal to driver, thereby the driver cut-off switch realizes cutting off the electricity supply electric current, thereby ensure security appliance and electrical equipment user's personal safety, can set by the FPGA module voltage and current of the electric current of cut-off switch, when current/voltage during lower than certain standard, pass through synchronous trigger module or one-chip computer module by FPGA, light/electric transducer and electric to optic converter, send signal to driver, thereby the driver Closing Switch realizes switching on power electric current, allow electrical equipment normal operation work.

Only duct ligation closes accompanying drawing utility model is described; but the invention is not restricted to above-mentioned embodiment; above-mentioned concrete mode is only schematic rather than restrictive; those of ordinary skill in the art in the situation that do not break away from aim of the present invention, can be made the embodiment of a variety of variation patterns; within all belonging to protection scope of the present invention; for example, one of execution mode can not comprise computer, and computer is not the essential condition in the present invention.

Claims

1. leakage protection system device, it is characterized in that: comprise power supply, the first switch and second switch, the first driver and the second driver, electrical equipment, the electric leakage probe, the first electric to optic converter and the second electric to optic converter, the first light/electric transducer and the second light/electric transducer, one-chip computer module, the FPGA module, alarm module, above-mentioned components and parts pass through wire, cable or coupling connect, power supply is through the first switch, second switch is connected with electrical equipment, electrical equipment contacts or is connected with the electric leakage probe, the electric leakage probe is connected with current sensor with voltage divider respectively, be connected with the FPGA module by treatment circuit after voltage divider and current sensor parallel connection, described FPGA module one end is connected with alarm module, and an end is connected with second switch by the secondth electric to optic converter, the second light/electric transducer, the second driver, and an end is connected with one-chip computer module, described one-chip computer module one end is connected with computer, and the other end is connected with the first switch by the first electric to optic converter, the first light/electric transducer, the first driver, described the first switch is connected with described the first driver, described second switch is connected with described the second driver, be connected to series connection between described the first switch and second switch, described one-chip computer module is connected with computer.