CN215183776U

CN215183776U - Electric leakage reclosing lock with magnetic ring

Info

Publication number: CN215183776U
Application number: CN202121448325.8U
Authority: CN
Inventors: 胡文明; 包瑞; 胡乐和
Original assignee: Shanghai Changcheng Switch Factory Co ltd
Current assignee: Shanghai Changcheng Switch Factory Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-14
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses an electric leakage reclosing lock with magnetic ring, its technical scheme main points are including the circuit board, the circuit breaker casing, driving motor, linkage gear and tripping device, the circuit breaker casing is including arranging the first casing that sets up in proper order, second casing and electrical operation casing, the circuit board sets up in the electrical operation casing, driving motor and linkage gear all set up in the electrical operation casing, tripping device sets up in the second casing, first casing is including first bottom and first apron, the second casing is including second bottom and second apron, first bottom and the laminating setting of second apron, second bottom and the laminating setting of electrical operation casing, it is provided with the wearing groove to run through on first bottom and the second apron, wear to be provided with the magnetic ring in the groove, this electric leakage reclosing lock specific sufficient space installation magnetic ring.

Description

Electric leakage reclosing lock with magnetic ring

Technical Field

The utility model relates to a leakage reclosing lock, more specifically say, it relates to a leakage reclosing lock with magnetic ring.

Background

The earth leakage breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. When the leakage current reaches the designed and selected action current value, the leakage release in the leakage breaker makes the breaker act, thus cutting off the power supply to play the role of leakage and electric shock protection. A residual current circuit breaker typically comprises a housing, a live breaking unit and a neutral breaking unit.

The internal space of the existing 90mm residual current circuit breaker is limited, so that a magnetic ring cannot be installed.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a leakage reclosing with magnetic ring, the concrete sufficient space installation magnetic ring of this leakage reclosing.

In order to achieve the above purpose, the utility model provides a following technical scheme: a leakage reclosing switch with a magnetic ring comprises a circuit board, a circuit breaker shell, a driving motor, a linkage gear and a tripping mechanism, wherein the circuit breaker shell comprises a first shell, a second shell and an electric operating shell which are sequentially arranged;

the first shell comprises a first bottom cover and a first cover plate, the second shell comprises a second bottom cover and a second cover plate, the first bottom cover and the second cover plate are arranged in an attached mode, and the second bottom cover and the electric operation shell are arranged in an attached mode;

and penetrating grooves are formed in the first bottom cover and the second cover plate in a penetrating mode, and magnetic rings are arranged in the penetrating grooves.

The utility model discloses further set up to: a first fixing plate is arranged in the first shell, one end of the first fixing plate is fixedly connected with a first bottom cover, and the other end of the first fixing plate is inserted into the magnetic ring;

and a second fixing plate is arranged in the second shell, one end of the second fixing plate is fixedly connected with the second bottom cover, and the other end of the second fixing plate is inserted into the magnetic ring.

The utility model discloses further set up to: the magnetic ring comprises a first ring part and a second ring part, and the thickness of the second ring part is larger than that of the first ring part.

The utility model discloses further set up to: still be provided with coil former, iron core and electric leakage release in the electricity behaviour casing, be provided with electric leakage indicator on the electricity behaviour casing.

The utility model discloses further set up to: the utility model discloses a circuit board, including the electricity, the electricity is controlled the casing and is covered with the circuit board electricity, the electricity is controlled the casing and is included the electricity and control bottom and the electricity is controlled the apron, electricity is controlled the bottom and is set up with the laminating of second casing, electricity is controlled the bottom and is offered the mounting groove towards one side of second casing and set up the self-checking electric leakage part in the mounting groove, run through in the mounting groove and seted up a plurality of wire holes, the self-checking electric leakage part passes through the wire and is connected with inboard coil former and circuit board electricity respectively.

The utility model discloses further set up to: self-checking electric leakage part is including button portion, first connecting portion, second connecting portion, conducting strip and spacing portion, first connecting portion is connected with the circuit board electricity, second connecting portion are connected with the coil former electricity, the one end and the second connecting portion fixed connection of conducting strip, the middle part butt of spacing portion and conducting strip, button portion is located the top that second connecting portion one end was kept away from to the conducting strip, first connecting portion is located the below that second connecting portion one end was kept away from to the conducting strip, button portion drive conducting strip and first connecting portion butt when button portion is pressed down, conducting strip and first connecting portion separation when button portion resets.

The utility model discloses further set up to: the wire guide hole comprises a first wire guide hole and a second wire guide hole, the first wire guide hole is arranged on one side close to the first connecting portion, and the second wire guide hole is arranged on one side close to the second connecting portion.

The utility model discloses further set up to: a wire inlet end and a wire outlet end are arranged in the first shell, and the wire inlet end comprises a wire inlet, a circuit breaker coil wiring board and a first temperature measuring element, wherein the circuit breaker coil wiring board and the first temperature measuring element are arranged in the wire inlet;

the outlet end comprises an outlet, a leakage bimetallic wire board and a second temperature measuring element, wherein the leakage bimetallic wire board and the second temperature measuring element are arranged in the outlet, and the first temperature measuring element and the second temperature measuring element are both coupled with the circuit board.

The utility model discloses further set up to: the circuit board comprises a first thermistor, a second thermistor and a comparison circuit, wherein a first temperature measuring element is connected with the first thermistor, a second temperature measuring element is connected with the second thermistor, and the first thermistor and the second thermistor are respectively connected with the comparison circuit.

The utility model discloses further set up to: the width dimension of the circuit breaker housing is 90 mm.

To sum up, the utility model discloses following beneficial effect has: this tripping device, driving motor, linkage gear etc. design of arranging, rationally used the space in electrical operation casing, the second casing, with the biggest rationalization in space, set up the circuit board in electrical operation casing to under limited size, can effectively increase the inner space of first casing and second casing.

Through the design, effective space can be saved in the breaker for installing the magnetic ring, and the magnetic ring is reasonably installed in the leakage breaker with the width of 90 mm.

Drawings

Fig. 1 is a schematic perspective view of a leakage reclosing switch;

FIG. 2 is a schematic view of the internal structure of the first housing;

FIG. 3 is a schematic view of the internal structure of the second housing;

FIG. 4 is a schematic view of the internal structure of the electrically operated casing;

fig. 5 is a schematic diagram of an outer side structure of the electrically operated bottom cover.

Reference numerals: 1. a circuit board; 2. a circuit breaker housing; 21. a first housing; 211. a first bottom cover; 212. a first cover plate; 22. a second housing; 221. a second bottom cover; 222. a second cover plate; 23. an electrically operated housing; 231. electrically operating the bottom cover; 232. an electrically operated cover plate; 24. a drive motor; 25. a linkage gear; 26. a tripping mechanism; 27. penetrating a groove; 28. mounting grooves; 3. a wire inlet end; 31. a wire inlet; 32. a circuit breaker coil terminal block; 33. a first temperature measuring element; 4. a wire outlet end; 41. an outlet; 42. a leakage double-gold wiring board; 43. a second temperature measuring element; 5. a magnetic ring; 51. a first fixing plate; 52. a second fixing plate; 53. a first ring portion; 54. a second ring portion; 6. a bobbin; 61. an iron core; 62. an electric leakage release; 63. a leakage indicator; 7. a self-checking leakage part; 71. a button portion; 72. a first connection portion; 73. a second connecting portion; 74. a conductive sheet; 75. a limiting part; 8. a first wire guide hole; 9. a second wire guide hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 5, in order to achieve the above object, the present invention provides the following technical solutions: an electric leakage reclosing switch with a magnetic ring 5 comprises a circuit board 1, a circuit breaker shell 2, a driving motor 24, a linkage gear 25 and a tripping mechanism 26, wherein the circuit breaker shell 2 comprises a first shell 21, a second shell 22 and an electric operating shell 23 which are sequentially arranged, the circuit board 1 is arranged in the electric operating shell 23, the driving motor 24 and the linkage gear 25 are both arranged in the electric operating shell 23, and the tripping mechanism 26 is arranged in the second shell 22;

the first shell 21 comprises a first bottom cover 211 and a first cover plate 212, the second shell 22 comprises a second bottom cover 221 and a second cover plate 222, the first bottom cover 211 and the second cover plate 222 are attached, and the second bottom cover 221 and the electric operating shell 23 are attached;

the first bottom cover 211 and the second cover plate 222 are provided with through grooves 27 in a penetrating manner, and the through grooves 27 are internally provided with magnetic rings 5.

The utility model discloses a design, the design of arranging such as this tripping device 26, driving motor 24, linkage gear 25, the rational use space in the electrical operation casing 23, the second casing 22, with the space maximum rationalization, set up circuit board 1 in the electrical operation casing 23 to under limited size, can effectively increase first casing 21 and second casing 22's inner space.

Effective space can be saved in the circuit breaker for installing the magnetic ring 5 through the design, and the magnetic ring 5 is reasonably installed in the leakage circuit breaker with the width of 90 mm.

The magnetic ring 5 is used as an inductor of the leakage magnetic ring 5, the live wire and the zero wire are wound on the magnetic ring 5 for several circles by adopting a parallel winding method, and the magnetic ring 5 is also provided with a secondary coil.

If a line leaks electricity or does not have a zero line, the currents passing through the live and neutral lines in the magnetic ring 5 will be unbalanced, and a magnetic flux passing through the magnetic ring 5 will be generated, inducing a voltage in the secondary coil, and causing the tripping mechanism 26 to trip through the electromagnet.

A first fixing plate 51 is arranged in the first shell 21, one end of the first fixing plate 51 is fixedly connected with the first bottom cover 211, and the other end of the first fixing plate 51 is inserted into the magnetic ring 5;

a second fixing plate 52 is disposed in the second housing 22, one end of the second fixing plate 52 is fixedly connected to the second bottom cover 221, and the other end of the second fixing plate 52 is inserted into the magnetic ring 5. The magnetic ring 5 is effectively fixed by the first fixing plate 51 and the second fixing plate 52

The magnetic ring 5 comprises a first ring part 53 and a second ring part 54, and the thickness of the second ring part 54 is larger than that of the first ring part 53.

As shown in fig. 2 and 3, the magnetic ring 5 is preferably designed at the position of the wire outlet end 4, but because the internal space is limited, the magnetic ring 5 is designed into an upper part and a lower part according to the requirements of the size specification of the first shell 21 and the second shell 22, the second ring part 54 is a lower body part, the first ring part 53 is an upper body part, and the thickness of the lower body part is slightly larger than that of the upper body part, so that the through groove 27 at the position of the upper body part is provided with enough clearance for the lead to pass through.

The coil rack 6, the iron core 61 and the leakage release 62 are also arranged in the electric operating shell 23, and the leakage indicator 63 is arranged on the electric operating shell 23. As shown in fig. 4, when the leakage occurs, the coil bobbin 6 generates a magnetic force to extend the core 61 and push the leakage release 62, so that the leakage release 62 rotates and pushes the release assembly and the leakage indicator 63, the release assembly performs a release operation, and the leakage indicator 63 changes

The electric operation shell 23 comprises an electric operation bottom cover 231 and an electric operation cover plate 232, the electric operation bottom cover 231 is attached to the second shell 22, one side, facing the second shell 22, of the electric operation bottom cover 231 is provided with a mounting groove 28 and a self-checking electric leakage component 7 arranged in the mounting groove 28, a plurality of wire holes are formed in the mounting groove 28 in a penetrating mode, and the self-checking electric leakage component 7 is electrically connected with the coil rack 6 and the circuit board 1 on the inner side through wires. And the first fixing plate 51 and the second fixing plate 52 are preferably disposed on a side of the magnetic ring 5 away from the outlet 4, so as to ensure that the magnetic ring 5 is not inclined by being dragged by a wire.

The self-checking leakage component 7 comprises a button portion 71, a first connecting portion 72, a second connecting portion 73, a conducting strip 74 and a limiting portion 75, wherein the first connecting portion 72 is electrically connected with the circuit board 1, the second connecting portion 73 is electrically connected with the coil rack 6, one end of the conducting strip 74 is fixedly connected with the second connecting portion 73, the limiting portion 75 is abutted with the middle of the conducting strip 74, the button portion 71 is located above one end of the conducting strip 74, which is far away from the second connecting portion 73, the first connecting portion 72 is located below one end of the conducting strip 74, which is far away from the second connecting portion 73, when the button portion 71 is pressed downwards, the button portion 71 drives the conducting strip 74 to be abutted with the first connecting portion 72, and when the button portion 71 is reset, the conducting strip 74 is separated from the first connecting portion 72.

The wire guide hole includes a first wire guide hole 8 and a second wire guide hole 9, the first wire guide hole 8 is disposed on one side close to the first connection portion 72, and the second wire guide hole 9 is disposed on one side close to the second connection portion 73. The self-checking electric leakage component 7 and other parts (the circuit board 1, the coil frame 6, and the like) are respectively arranged on two sides of the electric operation bottom cover 231, so that the self-checking electric leakage component 7 is not required to be assembled together with other parts, the assembly difficulty of the self-checking electric leakage component 7 is reduced, in addition, the self-checking electric leakage component 7 is not required to share the same part of space with other parts, so that the installation space of the self-checking electric leakage component 7 is larger, the conducting strip 74 in the self-checking electric leakage component 7 has a larger extension space, as shown in fig. 5, when the conducting strip 74 needs the same deformation stroke, because the installation space of the conducting strip 74 is larger, the angle required by the deformation of the conducting strip 74 is smaller, and the service life of the conducting strip 74 is further prolonged.

The self-checking electric leakage component 7 uses a lead which passes through a lead hole to be connected with the coil rack 6 and the circuit board 1 on the other side of the breaker shell 2 to form a loop.

This first wire guide 8 and second wire guide 9's design can play and make things convenient for the wire to arrange, is difficult for mixed and disorderly effect.

A wire inlet end 3 and a wire outlet end 4 are arranged in the first shell 21, the wire inlet end 3 comprises a wire inlet 31, a circuit breaker coil wiring board 32 arranged in the wire inlet 31 and a first temperature measuring element 33;

the outlet terminal 4 comprises an outlet 41, and a leakage bimetal wiring board 42 and a second temperature measuring element 43 which are arranged in the outlet 41, and the first temperature measuring element 33 and the second temperature measuring element 43 are both coupled with the circuit board 1.

The circuit board 1 comprises a first thermistor, a second thermistor and a comparison circuit, wherein a first temperature measuring element 33 is connected with the first thermistor, a second temperature measuring element 43 is connected with the second thermistor, and the first thermistor and the second thermistor are respectively connected with the comparison circuit. The temperature condition of the position of the circuit breaker coil wiring board 32 is monitored through the first temperature measuring element 33, the temperature condition of the position of the electric leakage bimetallic wiring board 42 is monitored through the second temperature measuring element 43, namely, the temperature conditions of the wire inlet 31 and the wire outlet 41 are monitored in real time, the temperature conditions are fed back to the circuit board 1, the first thermistor and the second thermistor can generate resistance change according to the temperature conditions of the two ends, so that a comparison circuit generates voltage drop, when the voltage drop reaches a specified preset limit, the circuit board 1 sends a starting signal to the driving motor 24, the tripping mechanism 26 is controlled through the driving motor 24 to carry out tripping operation, and particularly when the wire inlet end 3 or the wire outlet end 4 is abnormal, the safety of the circuit breaker is ensured.

The breaker housing 2 has a width dimension of 90 mm.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a electric leakage reclosing lock with magnetic ring, includes circuit board (1), circuit breaker casing (2), driving motor (24), linkage gear (25) and tripping device (26), characterized by: the circuit breaker comprises a circuit breaker shell (2) and a circuit breaker shell, wherein the circuit breaker shell (2) comprises a first shell (21), a second shell (22) and an electric operation shell (23) which are sequentially arranged, the circuit board (1) is arranged in the electric operation shell (23), the driving motor (24) and the linkage gear (25) are both arranged in the electric operation shell (23), and the tripping mechanism (26) is arranged in the second shell (22);

the first shell (21) comprises a first bottom cover (211) and a first cover plate (212), the second shell (22) comprises a second bottom cover (221) and a second cover plate (222), the first bottom cover (211) and the second cover plate (222) are attached to each other, and the second bottom cover (221) and the electric operating shell (23) are attached to each other;

the first bottom cover (211) and the second cover plate (222) are provided with through grooves (27) in a penetrating mode, and magnetic rings (5) are arranged in the through grooves (27).

2. The residual current circuit breaker with the magnetic ring as claimed in claim 1, wherein: a first fixing plate (51) is arranged in the first shell (21), one end of the first fixing plate (51) is fixedly connected with a first bottom cover (211), and the other end of the first fixing plate (51) is inserted into the magnetic ring (5);

a second fixing plate (52) is arranged in the second shell (22), one end of the second fixing plate (52) is fixedly connected with a second bottom cover (221), and the other end of the second fixing plate (52) is inserted into the magnetic ring (5).

3. The residual current circuit breaker with the magnetic ring as claimed in claim 2, wherein: the magnetic ring (5) comprises a first ring part (53) and a second ring part (54), and the thickness of the second ring part (54) is larger than that of the first ring part (53).

4. The residual current circuit breaker with the magnetic ring as claimed in claim 1, wherein: still be provided with coil former (6), iron core (61) and electric leakage release (62) in the electrical operation casing (23), be provided with electric leakage indicator (63) on electrical operation casing (23).

5. The residual current reclosing lock with the magnetic ring according to claim 4, wherein: the electric operation shell (23) comprises an electric operation bottom cover (231) and an electric operation cover plate (232), the electric operation bottom cover (231) is attached to the second shell (22), the electric operation bottom cover (231) is provided with a mounting groove (28) and a self-checking electric leakage component (7) arranged in the mounting groove (28) towards one side of the second shell (22), a plurality of wire holes are formed in the mounting groove (28) in a penetrating mode, and the self-checking electric leakage component (7) is electrically connected with the coil rack (6) and the circuit board (1) on the inner side through wires respectively.

6. An earth leakage reclosing lock with a magnetic ring according to claim 5, characterized in that: the self-checking electric leakage component (7) comprises a button part (71), a first connecting part (72), a second connecting part (73), a conducting strip (74) and a limiting part (75), the first connecting part (72) is electrically connected with the circuit board (1), the second connecting part (73) is electrically connected with the coil rack (6), one end of the conducting strip (74) is fixedly connected with the second connecting part (73), the limiting part (75) is abutted against the middle part of the conducting strip (74), the button part (71) is positioned above one end of the conducting strip (74) far away from the second connecting part (73), the first connecting part (72) is positioned below one end of the conducting strip (74) far away from the second connecting part (73), when the button part (71) is pressed downwards, the button part (71) drives the conducting strip (74) to abut against the first connecting part (72), the conductive piece (74) is separated from the first connection part (72) when the button part (71) is reset.

7. The residual current circuit breaker with the magnetic ring as claimed in claim 6, wherein: the wire guide hole comprises a first wire guide hole (8) and a second wire guide hole (9), the first wire guide hole (8) is arranged on one side close to the first connecting portion (72), and the second wire guide hole (9) is arranged on one side close to the second connecting portion (73).

8. The residual current circuit breaker with the magnetic ring as claimed in claim 1, wherein: a wire inlet end (3) and a wire outlet end (4) are arranged in the first shell (21), and the wire inlet end (3) comprises a wire inlet (31), a circuit breaker coil wiring board (32) arranged in the wire inlet (31) and a first temperature measuring element (33);

the outlet end (4) comprises an outlet (41), a leakage bimetallic wire board (42) arranged in the outlet (41) and a second temperature measuring element (43), and the first temperature measuring element (33) and the second temperature measuring element (43) are both coupled with the circuit board (1).

9. An earth leakage reclosing lock with a magnetic ring according to claim 8, characterized in that: the circuit board (1) comprises a first thermistor, a second thermistor and a comparison circuit, wherein a first temperature measuring element (33) is connected with the first thermistor, a second temperature measuring element (43) is connected with the second thermistor, and the first thermistor and the second thermistor are respectively connected with the comparison circuit.

10. An earth leakage reclosing lock with a magnetic ring according to any one of claims 1 to 9, characterized in that: the width dimension of the breaker shell (2) is 90 mm.