CN219203554U

CN219203554U - Leakage current detection circuit breaker

Info

Publication number: CN219203554U
Application number: CN202220939002.7U
Authority: CN
Inventors: 张涛; 魏栋
Original assignee: Dongguan City Tuocheng Industries Co Ltd
Current assignee: Dongguan City Tuocheng Industries Co Ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2023-06-16
Anticipated expiration: 2032-04-21

Abstract

The utility model relates to the technical field of plugs, in particular to a leakage current detection circuit breaker, which comprises a shell, a plurality of pins, a control circuit board, a leakage detection circuit breaking assembly, a plurality of cable connectors and a plurality of conductive output pieces, wherein the control circuit board, the leakage detection circuit breaking assembly, the cable connectors and the conductive output pieces are arranged in the shell; the key is used for controlling whether the cable connector outputs or not, and the leakage detection circuit breaking assembly is used for controlling the key to be disconnected when leakage current is generated; the plurality of conductive output pieces are in one-to-one correspondence with the plurality of pins, one end of each conductive output piece is used for being connected with the corresponding pin signals, and the other end of each conductive output piece is welded with the cable connector. The leakage current detection circuit breaker provided by the utility model has the advantages that the cable plug can be independently produced, when the plug is needed, the cable connector and the conductive output piece are welded, the connection is firmer, the assembly is convenient, and the production efficiency is higher.

Description

Leakage current detection circuit breaker

Technical Field

The utility model relates to the technical field of plugs, in particular to a leakage current detection circuit breaker.

Background

The cable and the plug are connected and assembled, and the cable and the plug are assembled in the same time when the plug is produced, so that the cable and the plug are assembled in a mode of clamping the cable in the cable clamp and screwing the cable, but the assembly mode is troublesome, the cable clamp and the cable are separated, and the cable cannot be fixed because the cable is easily loosened in the using process of the cable clamp, so that inconvenience exists in the production and the use of the plug.

Disclosure of Invention

The utility model provides a leakage current detection circuit breaker aiming at the problems in the prior art, and the conductive output piece is arranged, so that the pin and the cable connector are independently designed, the cable connector can be independently produced during production, and then the cable connector and the conductive output piece are welded, so that the production efficiency can be improved through independent production, and the connection between the cable connector and the wire output piece is firmer through the welding mode.

In order to solve the technical problems, the utility model adopts the following technical scheme: the leakage current detection circuit breaker comprises a shell, a plurality of pins, a control circuit board, a leakage detection circuit breaking assembly, a plurality of cable connectors and a plurality of conductive output pieces, wherein the control circuit board, the leakage detection circuit breaking assembly, the cable connectors and the conductive output pieces are arranged in the shell, the conductive output pieces are in signal connection with the control circuit board, a key is arranged on the shell, and the leakage detection circuit breaking assembly is in signal connection with the control circuit board; the leakage detection circuit breaking assembly is used for controlling the key to be disconnected when leakage current is generated;

the conductive output pieces are in one-to-one correspondence with the pins, the keys are used for controlling one ends of the conductive output pieces to be in signal connection with the pins, and the other ends of the conductive output pieces are welded with the cable connectors.

Preferably, the shell comprises an upper shell and a lower shell, the lower shell is convexly provided with a fixing column, the upper shell is provided with a groove, the fixing column is assembled in the groove and forms a clamping position with the bottom of the groove, and the other end of the conductive output piece is inserted into the clamping position.

Preferably, the lower shell is convexly provided with a convex rib ring, the upper shell is provided with a connecting groove, and the convex rib ring is assembled in the connecting groove after the upper shell and the lower shell are assembled.

Preferably, a waterproof assembly is installed in the shell, and the waterproof assembly comprises a waterproof gasket; the shell is internally provided with a fixed seat, the fixed seat is detachably arranged on the lower shell, the waterproof gasket is arranged between the fixed seat and the lower shell, the lower shell is provided with a key hole for exposing a key, and the waterproof gasket is used for sealing and isolating the key hole from the inner space of the shell.

Preferably, the waterproof gasket is provided with a U-shaped elastic ring, the U-shaped elastic ring is provided with a through hole, the wall of the through hole is provided with a limit groove, the periphery of the key is provided with a limit ring, and after the key penetrates through the through hole, the limit ring is assembled in the limit groove.

Preferably, the waterproof gasket is convexly provided with a sealing rib, and the sealing rib is used for abutting against the inner wall of the lower shell.

Preferably, a collar is convexly arranged on one side, in contact with the fixing seat, of the waterproof gasket, the collar forms a mounting groove, and the fixing seat is limited in the mounting groove.

Preferably, the leak detection circuit breaking assembly comprises a circuit breaker, a circuit breaking bracket, a connecting piece, a connecting reset piece and a key reset piece, and the pins are provided with fixed contacts; the key reset piece is sleeved on the periphery of the key and used for resetting the key, and the connecting reset piece is used for resetting the connecting piece;

the circuit breaker is arranged on the control circuit board and is in signal connection with the control circuit board, the connecting piece is movably arranged on the circuit breaking bracket, and the output end of the circuit breaker is arranged on the connecting piece and is used for driving the connecting piece to move;

control arms are arranged on two sides of the circuit breaking support, a driving groove is formed in the connecting piece, and a clamping groove is formed in the bottom of the key; when the key is closed, the groove wall of the driving groove is clamped in the clamping groove, the key drives the connecting piece to move, the connecting piece is used for driving the circuit breaking support to move, and the control arm of the circuit breaking support is used for driving the conductive output piece to contact with the fixed contact.

Preferably, the circuit breaking support is provided with a through groove, the connecting piece is movably assembled in the through groove, the connecting piece is provided with a limiting lug, one end of the connecting resetting piece is sleeved on the limiting lug, and the other end of the connecting resetting piece is abutted to the circuit breaking support.

The utility model has the beneficial effects that:

according to the leakage current detection circuit breaker provided by the utility model, the pins and the cable connectors are connected through the conductive output piece, so that the cable plugs can be independently produced, when the plugs are needed to be used, the cable connectors and the conductive output piece are welded, the connection is firmer, and the welding efficiency is higher.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the upper shell of the hidden part of the present utility model;

FIG. 3 is a schematic view of the structure of the hidden part of the upper case and the cable connector of the present utility model;

FIG. 4 is a schematic diagram of an exploded construction of the present utility model;

FIG. 5 is an exploded view of another view of the present utility model;

FIG. 6 is a cross-sectional view I of the present utility model;

FIG. 7 is a second cross-sectional view of the present utility model;

FIG. 8 is a schematic view of the structure of the hidden waterproof gasket of the present utility model;

FIG. 9 is a schematic view of another view of the hidden waterproof gasket of the present utility model;

fig. 10 is a schematic view showing an exploded structure of the hidden connecting member, the connecting reset member and the breaking bracket according to the present utility model.

The reference numerals in fig. 1 to 10 include:

the device comprises a 1-upper shell, a 2-lower shell, 3-pins, a 4-control circuit board, a 5-cable connector, a 6-conductive output piece, 7-keys, 8-fixing columns, 9-grooves, 10-clamping positions, 11-convex rib rings, 12-connecting grooves, 13-waterproof gaskets, 14-fixing seats, 15-key holes, 16-U-shaped elastic rings, 17-through holes, 18-limit rings, 19-limit grooves, 20-sealing convex ribs, 21-enclosing rings, 23-circuit breakers, 24-circuit breaking brackets, 25-connecting pieces, 26-connecting reset pieces, 27-key reset pieces, 28-fixed contacts, 29-control arms, 30-driving grooves, 31-clamping grooves, 32-through grooves and 33-limit protruding blocks.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model. The present utility model will be described in detail below with reference to the accompanying drawings.

The embodiment provides a leakage current detection circuit breaker, as shown in fig. 1 to 4, which comprises a housing, a plurality of pins 3, a control circuit board 4, a leakage detection circuit breaking assembly, a plurality of cable connectors 5 and a plurality of conductive output pieces 6, wherein the control circuit board 4 is arranged in the housing, the conductive output pieces 6 are in signal connection with the housing, a key 7 is arranged on the housing, and the leakage detection circuit breaking assembly is in signal connection with the control circuit board 4; the leakage detection circuit breaking component is used for controlling the key 7 to be disconnected when leakage current is generated; the conductive output pieces 6 are in one-to-one correspondence with the pins 3, the key 7 is used for controlling whether one end of the conductive output piece 6 is in signal connection with the pins 3, and the other end of the conductive output piece 6 is welded with the cable connector 5.

Specifically, the conductive output member 6 is mounted on the housing, as shown in fig. 3 and 4, in an alternative mounting manner, wherein the housing includes an upper housing 1 and a lower housing 2, the lower housing 2 is convexly provided with a fixing post 8, the upper housing 1 is provided with a groove 9, the fixing post 8 is assembled in the groove 9 and forms a clamping position 10 with the bottom of the groove 9, and the other end of the conductive output member 6 is inserted into the clamping position 10, so that the other end of the conductive output member 6 is stabilized in the housing after passing through the clamping position 10, and thus the structure of the embodiment except the cable connector 5 can be independently produced, and the cable connector 5 can also be independently produced, and when in use, the cable connector 5 is welded to the conductive output member 6 in a welding manner such as butt welding, thereby facilitating the production and assembly of the embodiment, and improving the efficiency.

Further, as shown in fig. 4 and 5, the lower shell 2 is provided with a convex rib ring 11 in a convex manner, the upper shell 1 is provided with a connecting groove 12, and the convex rib ring 11 is assembled in the connecting groove 12 after the upper shell 1 and the lower shell 2 are assembled.

Specifically, through the cooperation setting of bead ring 11 and spread groove 12, can make the equipment of shell more firm to have better leakproofness, and can further set up the sealing washer in the spread groove 12, improve sealed water-proof effects.

As shown in fig. 5 to 9, a waterproof assembly is installed in the casing, and the waterproof assembly includes a waterproof gasket 13; the shell is internally provided with a fixed seat 14, the fixed seat 14 is detachably arranged on the lower shell 2, the waterproof gasket 13 is arranged between the fixed seat 14 and the lower shell 2, the lower shell 2 is provided with a key hole 15 for exposing the key 7, and the waterproof gasket 13 is used for sealing and isolating the key hole 15 from the inner space of the shell.

Specifically, the assembly of the key 7 of this embodiment is further provided with a waterproof component, the structure is shown in fig. 7, the waterproof gasket 13 has elasticity, the connection part of the waterproof gasket 13 and the key 7 is provided with a U-shaped elastic ring 16, optionally, the U-shaped elastic ring 16 is provided with a through hole 17, the hole wall of the through hole 17 is provided with a limit groove 19, the periphery of the key 7 is provided with a limit ring 18, and after the key 7 passes through the through hole 17, the limit ring 18 is assembled in the limit groove 19, therefore, in the directions of fig. 6 and 7, the process of pressing the key 7 up and down is limited by the limit ring 18, the key 7 cannot be separated from the waterproof gasket 13, and because the U-shaped elastic ring 16 has elasticity, the waterproof gasket can be stretched up and down along with the key 7, the function of the key 7 is not limited, and the waterproof effect can be maintained.

Further, as shown in fig. 7 and 8, the waterproof gasket 13 is provided with a sealing rib 20 in a protruding manner, and the sealing rib 20 is used to abut against the inner wall of the lower case 2, thereby increasing the sealing waterproof performance between the waterproof gasket 13 and the outer case.

Still further, as shown in fig. 9, a collar 21 is protruding on a side of the waterproof gasket 13 contacting with the fixing base 14, the collar 21 forms a mounting groove (not shown in the drawing), and the fixing base 14 is limited in the mounting groove, so that stability of assembly between the fixing base 14 and the waterproof gasket 13 can be ensured, after the fixing base 14 is assembled to the housing, a position of the waterproof gasket 13 can be fixed at the same time, and displacement of the waterproof gasket 13 is prevented from affecting a waterproof effect.

As shown in fig. 4 to 7, the leakage current detection circuit breaker provided in the present embodiment includes a circuit breaker 23, a circuit breaking bracket 24, a connecting member 25, a connecting reset member 26, and a key reset member 27, and the pin 3 is provided with a fixed contact 28; the key reset piece 27 is sleeved on the periphery of the key 7 and is used for resetting the key 7, and the connecting reset piece 26 is used for resetting the connecting piece 25, wherein the circuit breaker 23 can be specifically an electromagnet and a switch arranged in a power circuit, when leakage current occurs, the two ends of the circuit breaker 23 generate pressure difference, magnetism occurs, the generated magnetism can attract the connecting piece 25, and the connecting piece 25 moves; the circuit breaker 23 is arranged on the control circuit board 4 and is in signal connection with the control circuit board 4, the connecting piece 25 is movably arranged on the circuit breaking bracket 24, and the output end of the circuit breaker 23 is arranged on the connecting piece 25 and is used for driving the connecting piece 25 to move; wherein, control arms 29 are arranged on both sides of the breaking bracket 24, a driving groove 30 is arranged on the connecting piece 25, and a clamping groove 31 is arranged at the bottom of the key 7; when the key 7 is closed, the slot wall of the driving slot 30 is clamped in the clamping slot 31, the key 7 drives the connecting piece 25 to move, the connecting piece 25 is used for driving the breaking bracket 24 to move, and the control arm 29 of the breaking bracket 24 is used for driving the conductive output piece 6 to contact with the fixed contact 28. Optionally, the breaking bracket 24 is provided with a through groove 32, the connecting piece 25 is movably assembled in the through groove 32, the connecting piece 25 is provided with a limit bump 33, one end of the connecting reset piece 26 is sleeved on the limit bump 33, and the other end of the connecting reset piece 26 is abutted to the breaking bracket 24.

Specifically, the control circuit board 4 of the present embodiment is designed with a corresponding leakage detection circuit and a leakage detection element, such as a mutual inductance coil, for sensing whether there is leakage current in the live wire and the neutral wire. During normal operation, as shown in fig. 6, when the key 7 is pressed down, the inclined plane at the bottom of the key 7 will squeeze the connecting piece 25 to move and clip into the slot 31 of the key 7, so that during the reset process of the key 7, the connecting piece 25 will be driven to move up, the connecting piece 25 will drive the breaking bracket 24 to move up, so that the two control arms 29 of the breaking bracket 24 will press the conductive output piece 6, the conductive output piece 6 will contact with the fixed contact 28 of the pin 3, and the pin 3 and the cable connector 5 will be connected to generate output voltage. When leakage current is generated, the leakage detection element of the control circuit board 4 generates an induction signal, the circuit breaker 23 generates magnetism and moves rightwards in the direction shown in fig. 6, the connecting piece 25 is driven to move rightwards, the connecting piece 25 is separated from the key 7, the key 7 is reset under the driving of the key reset piece 27, therefore, the connecting piece 25 and the circuit breaking bracket 24 also move downwards to reset, meanwhile, the connecting piece 26 is connected to reset the connecting piece 25 leftwards, the conductive output piece 6 is not contacted with the fixed contact 28, the pin 3 is not connected with the cable connector 5, therefore, output voltage current cannot be generated, electric equipment connected with the leakage current detection circuit breaker 23 of the embodiment is safer, and safety accidents are reduced.

The present utility model is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides a leakage current detects circuit breaker, includes shell and a plurality of pins, its characterized in that: the leakage detection circuit breaker comprises a shell, a control circuit board, a leakage detection circuit breaker assembly, a plurality of cable connectors and a plurality of conductive output pieces, wherein the control circuit board is arranged in the shell; the leakage detection circuit breaking assembly is used for controlling the key to be disconnected when leakage current is generated;

2. A leakage current detection circuit breaker according to claim 1, characterized in that: the shell comprises an upper shell and a lower shell, wherein the lower shell is convexly provided with a fixing column, the upper shell is provided with a groove, the fixing column is assembled in the groove and forms a clamping position with the bottom of the groove, and the other end of the conductive output piece is inserted into the clamping position.

3. A leakage current detection circuit breaker according to claim 2, characterized in that: the lower shell is convexly provided with a convex rib ring, the upper shell is provided with a connecting groove, and the convex rib ring is assembled in the connecting groove after the upper shell and the lower shell are assembled.

4. A leakage current detection circuit breaker according to claim 2, characterized in that: a waterproof assembly is arranged in the shell, and the waterproof assembly comprises a waterproof gasket; the shell is internally provided with a fixed seat, the fixed seat is detachably arranged on the lower shell, the waterproof gasket is arranged between the fixed seat and the lower shell, the lower shell is provided with a key hole for exposing a key, and the waterproof gasket is used for sealing and isolating the key hole from the inner space of the shell.

5. A leakage current detection circuit breaker according to claim 4, wherein: the waterproof gasket is provided with a U-shaped elastic ring, the U-shaped elastic ring is provided with a through hole, the wall of the through hole is provided with a limit groove, the periphery of the key is provided with a limit ring, and after the key penetrates through the through hole, the limit ring is assembled in the limit groove.

6. A leakage current detection circuit breaker according to claim 4, wherein: the waterproof gasket is convexly provided with a sealing rib, and the sealing rib is used for abutting against the inner wall of the lower shell.

7. A leakage current detection circuit breaker according to claim 4, wherein: the waterproof gasket with the protruding enclosure that is equipped with in one side that the fixing base contacted, the enclosure forms the mounting groove, the fixing base is spacing in the mounting groove.

8. A leakage current detection circuit breaker according to claim 1, characterized in that: the leakage detection circuit breaking assembly comprises a circuit breaker, a circuit breaking bracket, a connecting piece, a connecting reset piece and a key reset piece, wherein the pin is provided with a fixed contact; the key reset piece is sleeved on the periphery of the key and used for resetting the key, and the connecting reset piece is used for resetting the connecting piece;

9. The leakage current detection circuit breaker of claim 8, wherein: the circuit breaking support is provided with a through groove, the connecting piece is movably assembled in the through groove, the connecting piece is provided with a limiting lug, one end of the connecting reset piece is sleeved on the limiting lug, and the other end of the connecting reset piece is abutted to the circuit breaking support.