CN218335306U

CN218335306U - Leakage protection device

Info

Publication number: CN218335306U
Application number: CN202221153892.5U
Authority: CN
Inventors: 陈泽康; 林茂青; 林蔓琦
Original assignee: Guangdong Lead Electric Co ltd
Current assignee: Guangdong Lead Electric Co ltd
Priority date: 2022-05-14
Filing date: 2022-05-14
Publication date: 2023-01-17
Anticipated expiration: 2032-05-14

Abstract

The utility model relates to the technical field of power equipment and discloses an electric leakage protection device, which comprises an outer box, wherein the bottom of the inner wall of the outer box is bolted with an equipment power supply; the utility model discloses a zero sequence transformer detects leakage signal transfer to signal conversion treater, and rethread signal conversion treater sending signal gives two-stage switch excitation coil, pulls open equipment power two-stage switch through two-stage switch excitation coil, and the consumer can stop the power supply, thereby be convenient for realize earth leakage protection, can effectively block the circuit when unexpected appearing, carries out bidirectional protection to people and consumer, the utility model discloses an inductor responds to the equipment of external incasement portion, when the inductor senses the inside electric leakage condition that appears, can open the warning light and warn the user, opens warning loudspeaker again and carry out the sound production warning to the user, thereby improves warning effect, and the user is close to when avoiding the electric leakage, has improved the result of use of equipment, is worth using widely.

Description

Leakage protection device

Technical Field

The utility model relates to a power equipment technical field specifically is an earth leakage protection device.

Background

The current resident life is gradually improved, various electric appliances rapidly enter the living equipment, as the electric leakage protection systems of the residential buildings are uneven, in recent years, electric shock accidents of electric leakage of the electric appliances continuously occur, in case of accidents, the fact that the self-built house lacks an electric appliance grounding system or the grounding system does not reach the standard is discovered, the public grounding protection systems of partial residential districts are disordered due to long service time and grounding protection points of accessed users, the grounding protection system is connected and accessed to the ground to drop and interrupt without regular system maintenance, the electric appliances of the users are protected to be grounded and electrified due to the electric leakage of a certain unit in the failed grounding protection system, and the safe protection cannot be obtained in the failed and non-standard grounding protection systems.

In summary, most of current electric equipment is inconvenient to use, is not only lack of leakage protection, cannot effectively block a circuit when an accident occurs, cannot perform bidirectional protection on people and the electric equipment, is easy to cause injury to people, can also damage the electric equipment, cannot effectively warn when the electric leakage occurs, and affects the using effect of the equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an earth leakage protection device possesses the earth leakage protection of being convenient for and the advantage of the warning of being convenient for, and it is comparatively inconvenient when having solved present majority consumer and using, not only lacks earth leakage protection, can't effectively block circuit when unexpected appearing, can't carry out bidirectional protection to people and consumer, causes the injury to the people easily, still can cause the damage to the consumer, can't effectively warn when just appearing the electric leakage, influence the problem of equipment result of use.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an earth leakage protection device, includes the outer container, the bottom bolt of outer container inner wall has the equipment power, the inside of outer container and the top that is located the equipment power are provided with the two-stage and take excitation release switch, one side that the two-stage was taken excitation release switch is provided with single-stage and is taken excitation release switch, single-stage area excitation release switch's top is provided with zero sequence transformer, one side of zero sequence transformer is provided with closed loop current sensor, the inside of outer container is provided with the step-down rectifier, one side of step-down rectifier is provided with the signal conversion treater, one side of signal conversion treater is provided with signal conditioner, the inside of outer container is provided with the inductor, the top bolt of outer container one side has the warning light, the bottom of warning light is provided with warning horn.

Preferably, the bottom of the signal conversion processor is respectively connected with a two-stage switch excitation coil and a single-stage switch excitation coil, and the signal conversion processor can be conveniently connected and sensed by designing the two-stage switch excitation coil and the single-stage switch excitation coil.

Preferably, the top of the equipment power supply is respectively connected with a positive power line, a negative power line and a ground wire, and the circuits can be conveniently connected by designing the positive power line, the negative power line and the ground wire.

Preferably, the outside of equipment power is provided with protective housing, and protective housing and the bottom bolt of outer container inner wall, through having designed protective housing, can be convenient for protect the equipment power.

Preferably, the front of outer container articulates there is the chamber door, and the chamber door is corresponding with the inside of outer container, can be convenient for maintain the outer container inside through having designed the chamber door.

Preferably, the embedded radiator-grid in one side of outer container, and the radiator-grid is corresponding with the equipment power supply, through having designed the radiator-grid, can be convenient for improve the radiating effect in the outer container.

Compared with the prior art, the utility model provides an earth leakage protection device possesses following beneficial effect:

the utility model discloses a zero sequence transformer detects the leakage signal and conveys signal conversion treater, and then sends the signal to two-stage switch excitation coil through signal conversion treater, draws back equipment power two-stage switch through two-stage switch excitation coil, and the consumer can stop the power supply, thereby is convenient for realize earth leakage protection, can effectively block the circuit when the accident appears, carries out bidirectional protection to people and consumer;

the utility model discloses an inductor is responded to the inside equipment of outer incasement portion, when the inductor senses the inside electric leakage condition that appears, can open the warning light and warn the user, opens warning loudspeaker again and carries out the sound production warning to the user to improve warning effect, the user is close to when avoiding the electric leakage, has improved the result of use of equipment, is worth using widely.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of the front cross-section of the structure of the present invention;

fig. 3 is a schematic diagram of the structure circuit of the present invention.

In the figure: 1. an outer box; 2. a device power supply; 3. two-stage belt excitation tripping switches; 4. a single-stage belt excitation tripping switch; 5. a zero sequence transformer; 6. a closed loop current sensor; 7. a step-down rectifier; 8. a signal conversion processor; 9. a signal conditioner; 10. an inductor; 11. a warning light; 12. a warning horn; 13. a two-stage switch excitation coil; 14. a single-stage switch excitation coil; 15. a positive power supply line; 16. a negative power supply line; 17. a ground line; 18. a protective housing; 19. a box door; 20. a heat-dissipating network.

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. 1-3, a leakage protection device comprises an outer box 1, an equipment power supply 2 is bolted to the bottom of the inner wall of the outer box 1, a two-stage excitation tripping switch 3 is arranged in the outer box 1 and on the top of the equipment power supply 2, a single-stage excitation tripping switch 4 is arranged on one side of the two-stage excitation tripping switch 3, a zero sequence transformer 5 is arranged on the top of the single-stage excitation tripping switch 4, a closed-loop current sensor 6 is arranged on one side of the zero sequence transformer 5, a step-down rectifier 7 is arranged in the outer box 1, a signal conversion processor 8 is arranged on one side of the step-down rectifier 7, a signal regulator 9 is arranged on one side of the signal conversion processor 8, an inductor 10 is arranged in the outer box 1, a warning lamp 11 is bolted to the top of one side of the outer box 1, and a warning horn 12 is arranged at the bottom of the warning lamp 11, the utility model discloses a zero sequence transformer 5 detects leakage signal transfer to signal conversion treater 8, and rethread signal conversion treater 8 signals gives two-stage switch excitation coil 13, pulls open 2 two-stage switches of equipment power through two-stage switch excitation coil 13, and the consumer can stop the power supply, thereby be convenient for realize earth leakage protection, can effectively block the circuit when unexpected appearing, carries out bidirectional protection to people and consumer, the utility model discloses a sensor 10 responds to 1 inside equipment of outer container, when the inside electric leakage condition that appears is sensed to sensor 10, can open warning light 11 and warn the user, reopen warning horn 12 and carry out the vocal warning to the user, thereby improve warning effect, the user is close to when avoiding the electric leakage, has improved the result of use of equipment, is worth using widely.

Further, the bottom of the signal conversion processor 8 is connected with a two-stage switch excitation coil 13 and a single-stage switch excitation coil 14 respectively, and the signal conversion processor 8 can be conveniently connected and sensed by designing the two-stage switch excitation coil 13 and the single-stage switch excitation coil 14.

Further, the top of the device power supply 2 is respectively connected with a positive power supply line 15, a negative power supply line 16 and a ground line 17, and the positive power supply line 15, the negative power supply line 16 and the ground line 17 are designed, so that the circuits can be conveniently connected.

Further, the outside of equipment power supply 2 is provided with protective housing 18, and protective housing 18 and the bottom bolt of outer container 1 inner wall, through having designed protective housing 18, can be convenient for protect equipment power supply 2.

Further, the front surface of the outer box 1 is hinged with a box door 19, the box door 19 corresponds to the inside of the outer box 1, and the box door 19 is designed to facilitate maintenance of the inside of the outer box 1.

Furthermore, a heat dissipation net 20 is embedded in one side of the outer box 1, the heat dissipation net 20 corresponds to the equipment power supply 2, and the heat dissipation effect in the outer box 1 can be improved conveniently by designing the heat dissipation net 20.

During the use, detect leakage signal transfer to signal conversion treater 8 through zero

sequence transformer

5, 8 signals of rethread signal conversion treater give two-stage switch excitation coil 13, pull open 2 two-stage switches of equipment power through two-stage switch excitation coil 13, the consumer can stop the power supply, thereby be convenient for realize earth leakage protection, respond to 1 inside equipment of outer container through inductor 10, when inductor 10 senses the inside electric leakage condition that appears, can open warning light 11 and warn the user, open warning loudspeaker 12 again and carry out the sound production warning to the user, thereby improve warning effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. An earth leakage protection device, comprising an outer container (1), characterized in that: the bottom bolt of outer container (1) inner wall has equipment power (2), the inside of outer container (1) and the top that is located equipment power (2) are provided with two-stage area excitation trip switch (3), one side that two-stage area excitation trip switch (3) is provided with single-stage area excitation trip switch (4), the top that single-stage area excitation trip switch (4) is provided with zero sequence transformer (5), one side of zero sequence transformer (5) is provided with closed loop current sensor (6), the inside of outer container (1) is provided with step-down rectifier (7), one side of step-down rectifier (7) is provided with signal conversion treater (8), one side of signal conversion treater (8) is provided with signal conditioner (9), the inside of outer container (1) is provided with inductor (10), the top bolt-connection of outer container (1) one side has warning light (11), the bottom of warning light (11) is provided with loudspeaker (12).

2. A residual current device as claimed in claim 1, characterized in that: the bottom of the signal conversion processor (8) is respectively connected with a two-stage switch excitation coil (13) and a single-stage switch excitation coil (14).

3. A residual current device as claimed in claim 1, characterized in that: the top of the equipment power supply (2) is respectively connected with a positive power line (15), a negative power line (16) and a ground wire (17).

4. A residual current device as claimed in claim 1, characterized in that: the outer side of the equipment power supply (2) is provided with a protective shell (18), and the protective shell (18) is bolted to the bottom of the inner wall of the outer box (1).

5. A residual current device as claimed in claim 1, characterized in that: the front surface of the outer box (1) is hinged with a box door (19), and the box door (19) corresponds to the inside of the outer box (1).

6. A residual current device as claimed in claim 1, characterized in that: one side of the outer box (1) is embedded with a heat dissipation net (20), and the heat dissipation net (20) corresponds to the equipment power supply (2).