CN209896014U

CN209896014U - Long service life's earth-leakage protector

Info

Publication number: CN209896014U
Application number: CN201920648960.7U
Authority: CN
Inventors: 杨俊托; 朱思维
Original assignee: DONGGUAN TUOCHENG INDUSTRIES Co Ltd
Current assignee: DONGGUAN TUOCHENG INDUSTRIES Co Ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-01-03
Anticipated expiration: 2029-05-07

Abstract

The utility model relates to the technical field of electrical safety, in particular to a leakage protector with long service life, which comprises a PCB (printed circuit board), an electric conductive elastic part, a bracket, a power supply point arranged on the PCB, a clamping part used for being clamped with the bracket, a driving part used for driving the clamping part to be separated from the bracket and a tripping elastic part used for driving the bracket to move, wherein the power supply point and the clamping part are both arranged on the PCB, one end of the electric conductive elastic part is fixed on the PCB and is electrically connected with a power supply end of the driving part; when the bracket is clamped with the clamping piece, the bracket drives the other end of the conductive elastic piece to be connected with a power supply point; when the bracket is separated from the clamping piece, the tripping elastic piece drives the bracket to move, and the other end of the conductive elastic piece is separated from the power supply point. The utility model discloses a make the driving piece also break off the power supply when bracket and fastener are tripped to make the driving piece can not work for a long time, effectively prolong the life of driving piece, thereby prolong earth-leakage protector's life.

Description

Long service life's earth-leakage protector

Technical Field

The utility model belongs to the technical field of the electrical safety technique and specifically relates to indicate a long service life's earth-leakage protector.

Background

An electromagnet is often used as a driving piece in the leakage protector to drive the bracket and the clamping piece to be separated from each other to realize circuit breaking when the leakage occurs. In the conventional leakage protector, the electromagnet still works after the bracket and the clamping piece are tripped, and the service life of the electromagnet is shortened due to the fact that the electromagnet works for a long time, so that the service life of the whole leakage protector is influenced.

Disclosure of Invention

The utility model discloses problem to prior art provides a long service life's earth-leakage protector.

The utility model adopts the following technical scheme: a leakage protector with long service life comprises a PCB, a conductive elastic piece, a bracket, a power supply point arranged on the PCB, a clamping piece clamped with the bracket, a driving piece used for driving the clamping piece to be separated from the bracket and a tripping elastic piece used for driving the bracket to move, wherein the power supply point and the clamping piece are both arranged on the PCB, and one end of the conductive elastic piece is fixed on the PCB and is electrically connected with a power supply end of the driving piece; when the bracket is clamped with the clamping piece, the bracket drives the other end of the conductive elastic piece to be connected with a power supply point; when the bracket is separated from the clamping piece, the tripping elastic piece drives the bracket to move, and the other end of the conductive elastic piece is separated from the power supply point.

Preferably, the conductive elastic part comprises a first elastic sheet, a second elastic sheet formed by bending one end of the first elastic sheet and a third elastic sheet formed by bending one end of the second elastic sheet far away from the first elastic sheet, the bracket is abutted against the joint of the second elastic sheet and the third elastic sheet, the first elastic sheet is used for being electrically connected with the power supply end of the driving part, and the third elastic sheet is used for being electrically connected with the power supply point.

Preferably, the bracket includes the connecting block and with connecting block sliding connection's connecting piece, the connecting piece be used for with the fastener joint, the dropout elastic component is used for driving connecting block longitudinal movement, the driving piece is used for driving connecting piece lateral shifting, the connecting piece is equipped with the groove of stepping down, and the output of driving piece longitudinal movement in the groove of stepping down.

Preferably, the leakage protector with long service life further comprises a resetting mechanism, the resetting mechanism comprises a first resetting elastic piece and a second resetting elastic piece, one end of the first resetting elastic piece is connected with the connecting piece, the other end of the first resetting elastic piece is connected with the connecting block, and the second resetting elastic piece is used for driving the clamping piece to ascend.

Preferably, the clamping piece is connected with a reset button, and a convex body is arranged at one end, far away from the clamping piece, of the reset button.

Preferably, one end of the trip elastic member is fixed to the PCB, and the other end of the trip elastic member is connected to the bracket.

Preferably, the leakage protector with long service life further comprises a shell, and the PCB, the conductive elastic element, the bracket, the clamping element, the driving element and the tripping elastic element are all arranged inside the shell.

The utility model has the advantages that: the driving piece is also disconnected to supply power when the bracket and the clamping piece are tripped, so that the driving piece is not in a power-on state for a long time, the service life of the driving piece is effectively prolonged, and the service life of the leakage protector is prolonged.

Drawings

Fig. 1 is a three-dimensional structure diagram of the present invention.

Fig. 2 is an internal structure diagram of the present invention.

Fig. 3 is a three-dimensional structure diagram of the conductive elastic member, the bracket, the clamping member and the reset mechanism of the present invention.

Fig. 4 is a three-dimensional structure diagram of the bracket, the clamping member and the reset mechanism of the present invention.

Fig. 5 is a three-dimensional structure diagram of the fastener, the PCB, the conductive elastic member and the connecting member of the present invention.

The reference signs are: 1. a conductive elastic member; 11. a first elastic sheet; 12. a second elastic sheet; 13. a third elastic sheet; 2. a bracket; 21. connecting blocks; 22. a connecting member; 221. a yielding groove; 3. a fastener; 31. a card slot; 4. a drive member; 5. tripping the elastic piece; 6. a reset mechanism; 61. a first return spring; 62. a second return spring; 7. a reset button; 71. a convex body; 8. a PCB board; 81. a power supply point; 82. fixing a contact point; 83. a movable contact; 9. a housing.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 2, 3 and 5, a leakage protector with a long service life includes a PCB 8, a conductive elastic member 1, a bracket 2, a power supply point 81 disposed on the PCB 8, a clip 3 for being clamped with the bracket 2, a driving member 4 for driving the clip 3 to be separated from the bracket 2, and a trip elastic member 5 for driving the bracket 2 to move, wherein the power supply point 81 and the clip 3 are both disposed on the PCB 8, and one end of the conductive elastic member 1 is fixed to the PCB 8 and electrically connected to a power supply end of the driving member 4; when the bracket 2 is clamped with the clamping piece 3, the bracket 2 drives the other end of the conductive elastic piece 1 to be connected with the power supply point 81; when the bracket 2 is separated from the clamping piece 3, the releasing elastic piece 5 drives the bracket 2 to move, and the other end of the conductive elastic piece 1 is separated from the power supply point 81.

The tripping elastic piece 5 is specifically an elastic piece. The earth leakage protector is provided with a fixed contact 82 connected with the input end of the loop and a movable contact 83 connected with the output end of the loop, wherein the movable contact 83 is positioned on the tripping elastic member 5 or the bracket 2, and the movable contact 83 is positioned on the tripping elastic member 5 in the embodiment. When the bracket 2 is no longer clamped with the clamping piece 3, the tripping elastic piece 5 drives the bracket 2 to move and enables the fixed contact and the movable contact to be separated, and therefore the circuit breaking is realized. The utility model discloses in, also can make electrically conductive elastic component 1 and power supply point 81 separation when bracket 2 removes for driving piece 4 no longer receives the electricity and stop work, thereby prolongs the life of driving piece 4 and prolongs whole earth-leakage protector's life.

As shown in fig. 3, the conductive elastic member 1 includes a first elastic sheet 11, a second elastic sheet 12 formed by bending one end of the first elastic sheet 11, and a third elastic sheet 13 formed by bending one end of the second elastic sheet 12 away from the first elastic sheet 11, the bracket 2 abuts against a joint of the second elastic sheet 12 and the third elastic sheet 13, the first elastic sheet 11 is used for electrically connecting with a power supply end of the driving member 4, and the third elastic sheet 13 is used for electrically connecting with a power supply point 81. When the bracket 2 abuts against the conductive elastic member 1, the bracket 2 forces the conductive elastic member 1 to deform and contact the power supply point 81. When the carriage 2 moves, the carriage 2 no longer restricts the contact with the conductive elastic member 1, and the conductive elastic member 1 is separated from the power supply point 81 due to the elasticity of the first elastic piece 11, the second elastic piece 12 and the third elastic piece 13.

As shown in fig. 3, 4 and 5, the bracket 2 includes connecting block 21 and connecting piece 22 with connecting block 21 sliding connection, connecting piece 22 be used for with 3 joints of fastener, dropout elastic component 5 is used for driving connecting block 21 longitudinal movement, driving piece 4 is used for driving connecting piece 22 lateral shifting, connecting piece 22 is equipped with the groove of stepping down 221, and the output of driving piece 4 is longitudinal movement in the groove of stepping down 221. When installed, the output end of the driving member 4 is fitted in the relief groove 221; with reference to fig. 3, when an open circuit occurs, the driving member 4 drives the connecting member 22 to move rightwards, so that the connecting member 22 is separated from the clamping member 3, the trip elastic member 5 drives the connecting block 21 to descend, so that the clamping member 3 and the connecting member 22 are dislocated, that is, the clamping member 3 and the connecting member 22 cannot be clamped, and therefore, the open circuit effect is achieved; the output end of the driving member 4 longitudinally moves in the receding groove 221, so that the driving member 4 can slide along the receding groove 221 without being collided when the connecting block 21 descends.

As shown in fig. 3, 4 and 5, the leakage protector with a long service life further includes a reset mechanism 6, the reset mechanism 6 includes a first reset elastic member 61 and a second reset elastic member 62, one end of the first reset elastic member 61 is connected to the connecting member 22, the other end of the first reset elastic member 61 is connected to the connecting block 21, and the second reset elastic member 62 is used for driving the card 3 to ascend. The utility model discloses a canceling release mechanical system 6 comes to reset after opening circuit to repetitious usage. When the circuit is broken, the driving piece 4 drives the connecting piece 22 to move rightwards, so that the connecting piece 22 is separated from the clamping groove 31 of the clamping piece 3, the first elastic resetting piece 61 is compressed, the second resetting elastic piece 62 drives the clamping piece 3 to ascend, the clamping piece 3 and the connecting piece 22 are dislocated, and the first elastic resetting piece 61 cannot drive the connecting piece 22 to be clamped into the clamping groove of the clamping piece 3 again; and when the user presses the clamping piece 3 to enable the clamping piece 3 to descend, the clamping piece 3 and the connecting piece 22 are not dislocated, the first resetting piece drives the connecting piece 22 to move leftwards, and the clamping piece 3 and the connecting piece 22 are clamped again. The first and second return

elastic members

61 and 62 are embodied as springs.

As shown in fig. 1 and 3, a reset button 7 is connected to the clip 3, and a protrusion 71 is disposed at one end of the reset button 7 away from the clip 3. The earth leakage protector is often installed in a dark place such as an electric box. The provision of the projection 71 on the reset button 7 enables the reset button 7 to have a different tactile sensation from other buttons, facilitating the user to accurately press the reset button 7 in a dark place.

As shown in fig. 2, one end of the trip elastic member 5 is fixed to the PCB board 8, and the other end of the trip elastic member 5 is connected to the bracket 2. Electrically conductive elastic component 1 is connected through the power supply end electricity of PCB board 8 with driving piece 4, for the electricity of realizing each component is connected, can set up PCB board 8 among the earth-leakage protector, the utility model discloses in still utilize PCB board 8 to come as the mounting with fixed dropout elastic component 5, realize that a thing is dual-purpose.

As shown in fig. 1, the leakage protector with long service life further includes a housing 9, and the PCB 8, the conductive elastic member 1, the bracket 2, the clip 3, the driving member 4, and the trip elastic member 5 are all disposed inside the housing.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a long service life's earth-leakage protector which characterized in that: the power supply device comprises a PCB (8), a conductive elastic part (1), a bracket (2), a power supply point (81) arranged on the PCB (8), a clamping piece (3) clamped with the bracket (2), a driving piece (4) used for driving the clamping piece (3) to be separated from the bracket (2) and a tripping elastic part (5) used for driving the bracket (2) to move, wherein the power supply point (81) and the clamping piece (3) are both arranged on the PCB (8), and one end of the conductive elastic part (1) is fixed on the PCB (8) and is electrically connected with a power supply end of the driving piece (4);

when the bracket (2) is clamped with the clamping piece (3), the bracket (2) drives the other end of the conductive elastic piece (1) to be connected with a power supply point (81);

when the bracket (2) is separated from the clamping piece (3), the tripping elastic piece (5) drives the bracket (2) to move, and the other end of the conductive elastic piece (1) is separated from the power supply point (81).

2. A long-life earth leakage protector according to claim 1, wherein: electrically conductive elastic component (1) includes first flexure strip (11), second flexure strip (12) that the one end of being buckled by first flexure strip (11) formed and third flexure strip (13) that the one end of keeping away from first flexure strip (11) by second flexure strip (12) is buckled and is formed, bracket (2) conflict second flexure strip (12) and the junction of third flexure strip (13), first flexure strip (11) are used for being connected with the power supply end electricity of driving piece (4), the being used for of third flexure strip (13) is connected with power supply point (81) electricity.

3. A long-life earth leakage protector according to claim 1, wherein: bracket (2) including connecting block (21) and with connecting block (21) sliding connection's connecting piece (22), connecting piece (22) be used for with fastener (3) joint, dropout elastic component (5) are used for driving connecting block (21) longitudinal movement, driving piece (4) are used for driving connecting piece (22) lateral shifting, connecting piece (22) are equipped with groove of stepping down (221), and the output of driving piece (4) is longitudinal movement in groove of stepping down (221).

4. A long-life earth leakage protector according to claim 3, wherein: the leakage protector with the long service life further comprises a resetting mechanism (6), the resetting mechanism (6) comprises a first resetting elastic piece (61) and a second resetting elastic piece (62), one end of the first resetting elastic piece (61) is connected with the connecting piece (22), the other end of the first resetting elastic piece (61) is connected with the connecting block (21), and the second resetting elastic piece (62) is used for driving the clamping piece (3) to ascend.

5. A long-life earth leakage protector according to claim 4, characterized in that: the clamping piece (3) is connected with a reset button (7), and a convex body (71) is arranged at one end, far away from the clamping piece (3), of the reset button (7).

6. A long-life earth leakage protector according to claim 1, wherein: one end of the tripping elastic piece (5) is fixed on the PCB (8), and the other end of the tripping elastic piece (5) is connected with the bracket (2).

7. A long-life earth leakage protector according to claim 1, wherein: the leakage protector with the long service life further comprises a shell (9), and the PCB (8), the conductive elastic piece (1), the bracket (2), the clamping piece (3), the driving piece (4) and the tripping elastic piece (5) are arranged inside the shell.