CN108321053B

CN108321053B - Leakage circuit breaker

Info

Publication number: CN108321053B
Application number: CN201810026341.4A
Authority: CN
Inventors: 余宏波; 刘超; 史克少; 王斌
Original assignee: Zhejiang Tengen Electric Co Ltd
Current assignee: Zhejiang Tengen Electric Co Ltd
Priority date: 2018-01-11
Filing date: 2018-01-11
Publication date: 2024-03-08
Anticipated expiration: 2038-01-11
Also published as: CN108321053A

Abstract

A leakage breaker. The problem that the current leakage circuit breaker electric leakage unit breaking is not rapid enough is mainly solved. The invention provides an electric leakage breaker which is pulled by a tension spring to be rapidly broken when being broken, and has better use effect. Further, the electric leakage tripping mechanism of the electric leakage breaker is simple in structure and convenient to use.

Description

Leakage circuit breaker

Technical Field

The invention relates to the field of circuit breakers, in particular to an electric leakage circuit breaker.

Background

The leakage breaker is a switch that can automatically operate when the leakage current in the circuit exceeds a predetermined value. The common leakage circuit breakers are classified into a voltage type and a current type, and the current type is classified into an electromagnetic type and an electronic type.

The leakage circuit breaker is actually a circuit breaker with a leakage protection function, and comprises a circuit breaker unit and a leakage unit, wherein the current leakage circuit breaker is not rapid enough in breaking of the leakage unit.

Disclosure of Invention

In order to overcome the defects of the background technology, the invention provides an electric leakage breaker, which mainly solves the problem that the current electric leakage breaker is not quick enough in breaking of an electric leakage unit.

The technical scheme adopted by the invention is as follows:

the utility model provides an electric leakage circuit breaker, includes the casing, be equipped with the first cavity that is used for installing the circuit breaker unit in the casing and be used for installing the second cavity of electric leakage unit, be equipped with first tripping device in the first cavity, first tripping device is including rotatable the hasp of installing in the casing, be equipped with the release lever on the hasp, be equipped with second tripping device in the second cavity, second tripping device still includes the second support, be equipped with the second moving contact on the second support, be equipped with the extension spring in the casing, the extension spring be used for with the second support towards the second moving contact breaks the orientation and rotates.

The beneficial effects of the invention are as follows: the invention provides an electric leakage breaker which is pulled by a tension spring to be rapidly broken when being broken, and has better use effect.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a partial perspective view of an embodiment of the present invention.

Fig. 3 is a partial perspective view of an embodiment of the present invention.

Fig. 4 is a partial perspective view of an embodiment of the present invention.

Fig. 5 is an exploded view of a second trip unit according to one embodiment of the present invention.

Fig. 6 is a schematic view of a rotating plate according to an embodiment of the present invention.

Fig. 7 is a schematic view of a second chamber according to an embodiment of the invention.

Detailed Description

The invention is further described below with reference to the accompanying drawings: as shown in the figure, the leakage breaker comprises a shell 9, a first chamber for installing a breaker unit and a second chamber 2 for installing a leakage unit are arranged in the shell 9, a first tripping mechanism is arranged in the first chamber, the first tripping mechanism comprises a lock catch 12 rotatably arranged in the shell, a tripping rod 123 is arranged on the lock catch, a second tripping mechanism is arranged in the second chamber 2, the second tripping mechanism further comprises a second support 27, a second moving contact 271 is arranged on the second support, a tension spring 272 is arranged in the shell, and the tension spring is used for rotating the second support towards the breaking direction of the second moving contact. When the second moving contact is disconnected, the second moving contact is pulled to rapidly act through the tension spring, and in the embodiment, the tension spring pulls the second moving contact to rotate anticlockwise to achieve rapid disconnection.

In this embodiment, as shown in the drawing, a movable indication button 23 and an elastic member 24 for applying force upwards to the indication button are further provided in the housing, a turning leg 231 is provided at the bottom of the indication button 23, the second trip mechanism includes a first trip 21 and a rotating plate 22 driven by the first trip 21 to swing back and forth, the bottom of the rotating plate is correspondingly provided with the trip rod, a baffle 221 in sliding fit with the turning leg is provided at the upper end, and a clamping groove 222 is provided on the baffle corresponding to the turning leg. Other spare parts in the electric leakage circuit breaker, such as the circuit board, the mutual-inductor is prior art, and unnecessary description, when the electric leakage condition appears, movable rod shrink drives the rotation board anticlockwise rotation, thereby the lower extreme of rotation board promotes the release 123 rotation and drives the hasp and trip, and on the other hand, the baffle can leave the turning foot, and the casing surface can be popped out under the effect of elastic component to the instruction button like this and be used for instructing, and unable manual pulling handle is closed on this moment, only presses the instruction button and makes the movable rod reset just can be closed.

In this embodiment, as shown in the drawing, a fixing plate 91 is disposed in the housing corresponding to the indication button, a receiving groove 232 is disposed in the indication button, the elastic member is disposed in the receiving groove, and the bottom of the elastic member contacts with the fixing plate, and the top of the elastic member contacts with the top of the inner wall of the receiving groove. Simple structure and convenient use.

In this embodiment, as shown in the drawing, a limiting block 223 is further disposed at the bottom of the rotating plate. The stroke is controlled, and the use effect is better.

In this embodiment, as shown in the drawing, the outer wall of the casing is further provided with an open slot 92, and further comprises a test button 26, the bottom of the test button is provided with a barb 261 engaged with the inner wall of the open slot in a clamping manner, two sides of the test button 26, opposite to the barb, are provided with through slots 262, and the bottom of the test button is further provided with an elastic sheet. When the test button is installed, the test button can be installed in place by being vertically pressed, the bottom is supported by the elastic sheet, the barb can be clamped on the inner wall of the shell, and the through groove can strengthen the elasticity of the barb so as to facilitate assembly.

In this embodiment, as shown in the figure, the first trip mechanism includes a first bracket 11, the lock catch is disposed on the first bracket, a linkage rod 121 is disposed at the back of the lock catch, and the second bracket rotates synchronously with the first bracket through the linkage rod. When the breaker unit is tripped, the lock catch rotates to drive the second bracket to rotate through the linkage rod 121, and then the second moving contact is driven to trip, so that the synchronism is high, and the use effect is good.

In this embodiment, as shown in the drawing, the first cavity is further provided with a second release, the second release includes a magnetic yoke 211 and a static iron core 214, a coil 212 is welded on the magnetic yoke 211, the magnetic yoke includes two side plates 213, two clamping grooves 215 are respectively formed in the side plates, the front end and the rear end of the static iron core are respectively arranged in the two clamping grooves on the side plates, and the coil is sleeved at the middle end of the static iron core. The installation is more convenient, only the static iron core is required to be installed in place, and the movable iron core (movable rod) is arranged in the static iron core.

In this embodiment, as shown in the drawing, the second release further includes a movable rod 216, a baffle ring 2161 is disposed at the front end of the movable rod, and a through hole 2211 for the movable rod to pass through is disposed on the baffle plate, and the diameter of the baffle ring is larger than that of the through hole. And the operation is stable.

In this embodiment, as shown in the figure, the upper end surface of the baffle is further provided with a notch 2212, and the notch is communicated with the baffle ring. The installation is more convenient.

The examples should not be construed as limiting the invention, but any modifications based on the spirit of the invention should be within the scope of the invention.

Claims

1. The electric leakage breaker comprises a shell (9), wherein a first chamber (1) for installing a breaker unit and a second chamber (2) for installing an electric leakage unit are arranged in the shell (9), a first tripping mechanism is arranged in the first chamber and comprises a lock catch (12) rotatably arranged in the shell, a tripping rod (123) is arranged on the lock catch,

a second tripping mechanism is arranged in the second chamber (2), and is characterized in that: the second tripping mechanism further comprises a second bracket (27), a second moving contact (271) is arranged on the second bracket, a tension spring (272) is arranged in the shell, and the tension spring is used for rotating the second bracket towards the breaking direction of the second moving contact;

still be equipped with clearance fit's instruction button (23) and will in the casing instruction button upward force application's elastic component (24), instruction button (23) bottom is equipped with turns foot (231), second tripping device includes first release (21) and by first release (21) drive back and forth wobbling pivoted rotating plate (22), the rotating plate bottom with the release corresponds the setting, the upper end be equipped with turn foot sliding fit's baffle (221), be equipped with on the baffle with turn foot corresponds and be equipped with draw-in groove (222).

2. The earth leakage breaker according to claim 1, characterized in that: the shell is internally provided with a fixed plate (91) corresponding to the indication button, the indication button is internally provided with a containing groove (232), the containing groove is internally provided with an elastic piece, and the bottom of the elastic piece is contacted with the fixed plate, and the top of the elastic piece is contacted with the top of the inner wall of the containing groove.

3. The earth leakage breaker according to claim 2, characterized in that: and a limiting block (223) is further arranged at the bottom of the rotating plate.

4. A leakage breaker according to claim 3, wherein: still be equipped with open slot (92) on the casing outer wall, still include test button (26), test button bottom be equipped with open slot inner wall joint complex barb (261), test button (26) are last relatively the barb both sides are equipped with logical groove (262), test button bottom still is equipped with the shell fragment.

5. The earth leakage breaker according to claim 4, wherein: the first tripping mechanism comprises a first support (11), the lock catch is arranged on the first support, a linkage rod (121) is arranged at the back of the lock catch, and the second support rotates synchronously with the first support through the linkage rod.

6. The earth leakage breaker according to claim 5, wherein: still be equipped with the second release in the first chamber, the second release includes yoke (211) and quiet iron core (214), the welding has coil (212) on yoke (211), the yoke includes two curb plates (213), two all be equipped with draw-in groove (215) on the curb plate, both ends are located respectively around the quiet iron core two in the draw-in groove on the curb plate, the coil cover is located quiet iron core middle-end.

7. The earth leakage breaker according to claim 6, wherein: the second release further comprises a movable rod (216), a baffle ring (2161) is arranged at the front end of the movable rod, a through hole (2211) used for the movable rod to pass through is formed in the baffle plate, and the diameter of the baffle ring is larger than that of the through hole.

8. The earth leakage breaker according to claim 7, wherein: the upper end surface of the baffle plate is also provided with a notch (2212), and the notch is communicated with the baffle ring.