CN215069826U - 2P2 modulus electromagnetic type earth leakage protection circuit breaker - Google Patents

Abstract

The utility model relates to a 2P2 modulus electromagnetic type earth leakage protection circuit breaker, which comprises a housin, be equipped with circuit breaker module in the casing, with the handle link gear of earth leakage protection module, steerable circuit breaker module and the earth leakage protection module of circuit breaker module linkage, its characterized in that: the circuit breaker module is including setting up in the first protection utmost point circuit breaker device of casing one side, the earth leakage protection module is including setting up in the earth leakage protection device of casing opposite side, the circuit breaker module is still including setting up in the casing and being located the second protection utmost point circuit breaker device between first protection utmost point circuit breaker device and the earth leakage protection device, first protection utmost point circuit breaker device is unanimous with the inside inner structure of second protection utmost point circuit breaker device, the beneficial effects of the utility model are that: the 2P2 modulus electromagnetic type leakage protection circuit breaker adopts a standard modular layout design, and has the advantages of small number of parts, simple manufacturing process, convenience in maintenance and good economical efficiency.

Description

2P2 modulus electromagnetic type earth leakage protection circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, concretely relates to 2P2 modulus electromagnetic type earth leakage protection circuit breaker.

Background

The leakage protection circuit breaker (RCBO), also called leakage circuit breaker, leakage protector, is mainly used to protect the circuit or motor, avoid overload or short circuit, and also can be used to switch the circuit without frequent switching and starting under normal condition. The leakage protection circuit breaker generally comprises a shell, a circuit breaker device and a leakage protection device are distributed in the shell, the circuit breaker device is used for controlling the on-off of a brake contact and a fixed contact when the circuit breaker is in short circuit, overload or the infrequent starting of a circuit, the leakage protection circuit breaker generally comprises an operating mechanism, a thermal tripping mechanism, an electromagnetic tripping mechanism and an arc extinguishing system, the operating mechanism comprises a handle mechanism, a contact lever and a lock catch, the on-off of a moving contact and the fixed contact can be controlled through a linkage structure among the handle mechanism, the contact lever and the lock catch, the lock catch is used for linking the leakage protection device and the operating mechanism to realize the on-off of the brake contact and the fixed contact when leakage occurs, the leakage protection device is used for controlling the on-off of the brake contact and the fixed contact when leakage occurs, and the leakage protection circuit breaker mainly comprises a control circuit board, a leakage tripping action mechanism and a test circuit.

The earth leakage circuit breaker in the prior art has the following problems:

firstly, in the aspect of overall layout, the breaker device occupies the upper half space, the structure of the breaker device is very compact, the design requirement is high, the assembly precision is high, and because the space is small, the design of an arc extinguishing gas path is difficult, and high short circuit breaking capacity is difficult to realize; the assembly process of the left and right two-pole circuit breaker devices is adopted, two sets of action mechanisms are designed, the width sizes of a thermal trip, an operation mechanism and an arc extinguishing system in the 18mm circuit breaker are compressed, the width of about 18mm in the middle is made available for the leakage protection device, the left and right two-pole circuit breakers cannot realize modulization, and the number of parts is increased; furthermore, the 2P circuit breaker is integrated into the space of 18mm (1P), which has high manufacturing difficulty, high process precision and extremely difficult isolation of the 2P arc.

Secondly, circuit breaker part quantity is more among the prior art, and when current circuit breaker set up 2 looks and 2 looks above, each looks circuit breaker all is connected with a set of handle mechanism link gear respectively and controls, leads to handle mechanism link gear numerous.

Thirdly, the test loop module in the earth leakage protection device in the prior art usually adopts a plurality of test springs and test resistors, and these parts are tiled and arranged in the shell, and the installation of the earth leakage tripping action mechanism must be considered in the assembling process, so that the overall structure of the earth leakage protection device is complex, the parts are more, the layout is complex, and the assembling difficulty is large.

Fourthly, the leakage protection device has more parts, and many places need to be welded, resulting in large tripping force and easy occurrence of the defect of unstable tripping force.

Fifthly, all be equipped with handle mechanism among circuit breaker device and the earth leakage protection device, and the circuit breaker sets up 2 and reaches when 2 specifications more than looks, handle mechanism's quantity is just also followed the increase, among the prior art, generally all is a handle mechanism control a set of circuit breaker operating device, has increased handle mechanism quantity on the one hand, and on the other hand when the circuit breaker is multiphase, hardly reaches synchronous manual control, must close by one, complex operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that not enough to above-mentioned prior art provides a 2P2 modulus electromagnetic type earth leakage protection circuit breaker, chooses standard modulus overall arrangement design for use, and the part is small in quantity, and manufacturing process is simple, easy maintenance, and economic nature is good.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a 2P2 modulus electromagnetic type earth leakage protection circuit breaker, includes the casing, be equipped with circuit breaker module in the casing, with the earth leakage protection module of circuit breaker module linkage, steerable circuit breaker module and earth leakage protection module's handle link gear, its characterized in that: the circuit breaker module is including setting up in the first protection utmost point circuit breaker device of casing one side, the earth leakage protection module is including setting up in the earth leakage protection device of casing opposite side, the circuit breaker module is still including setting up in the casing and being located the second protection utmost point circuit breaker device between first protection utmost point circuit breaker device and the earth leakage protection device, first protection utmost point circuit breaker device is unanimous with second protection utmost point circuit breaker device inner structure.

By adopting the technical scheme, the circuit breaker adopts a modular design, the two-phase circuit breaker and the leakage protection module are arranged in a 2P2 modular (36 mm) space, the two-phase circuit breaker is also the first protection pole circuit breaker device and the second protection pole circuit breaker device, the internal structures and parts of the two protection pole circuit breaker devices are completely the same, the whole circuit breaker device has high interchangeability, the assembly, the maintenance and the like are convenient, the manufacturing process is simple, the maintenance is convenient, and the economy is good.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the first protection pole circuit breaker device and the second protection pole circuit breaker device both comprise a thermal tripping mechanism, an electromagnetic tripping mechanism and an arc extinguishing system, the first protection pole circuit breaker device also comprises a first connecting rod, a contact lever, a first lock catch and a first moving contact, the shell is positioned on the side part of the first moving contact and is provided with a first fixed contact capable of intermittently linking with the first moving contact, the second protection pole circuit breaker device also comprises a second lock catch and a second moving contact, the shell is positioned on the side part of the second moving contact and is provided with a second fixed contact capable of intermittently linking with the first moving contact or the second moving contact, one end of the first connecting rod is linked with the handle linking mechanism, the other end of the first connecting rod is linked with the end part of the contact lever, the middle part of the lever contact is provided with a first hinged linkage shaft, one end of the first lock catch and the second lock catch are respectively hinged with two ends of the first hinged linkage shaft and positioned on two sides of the contact lever, the contact lever is provided with a second hinged linkage shaft relative to the other end of the linkage connecting rod, the middle parts of the first moving contact and the second moving contact are respectively hinged to two ends of the second hinged linkage shaft and located on two sides of the contact lever, one end of the first lock catch, which is far away from the connecting rod, is intermittently linked with the first moving contact, one end of the second lock catch, which is far away from the connecting rod, is intermittently linked with the second moving contact, a first reset spring which can be linked with the first moving contact is sleeved at the position, where the second hinged linkage shaft is located, of the first moving contact, and a second reset spring which can be linked with the second moving contact is sleeved at the position, where the second moving contact is located, of the second moving contact.

By adopting the technical scheme, the connecting rod and the contact lever are arranged, the first lock catch and the second lock catch are respectively linked on two sides of the contact lever through two ends of the first hinged linkage shaft, and the first moving contact and the second moving contact are further linked on two sides of the contact lever through two ends of the second hinged linkage shaft respectively, so that one handle can drive two groups of moving contacts, a single handle is used for controlling the multiphase circuit breaker, the structure of a circuit breaker module is simplified, the integral structure complexity of the circuit breaker is reduced, the number of parts is reduced, the cost is reduced, and the processing and the assembly are convenient.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: and a relative linkage structure is arranged between the first lock catch and the second lock catch.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the relative linkage structure comprises an insertion column arranged in the middle of the second lock catch and facing one side of the first lock catch, the first lock catch is provided with a linkage shaft hole capable of being embedded with the insertion column, the contact lever can push the first lock catch to rotate around the first hinged linkage shaft under the driving of the connecting rod, and the second lock catch rotates around the first hinged linkage shaft along with the first lock catch through the insertion column.

By adopting the technical scheme, the first lock catch can drive the second lock catch to synchronously follow the handle linkage mechanism to work by arranging the relative linkage structure, so that the single handle is used for controlling the multiphase circuit breaker, the working synchronism of the two phase circuit breakers is high, and the safety performance of the circuit breaker is improved.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the earth leakage protection device includes electric leakage tripping action mechanism, experimental return circuit mechanism includes electrically conductive experimental torsional spring, electrically conductive experimental torsional spring middle part articulates there is the third hinge universal driving shaft, third hinge universal driving shaft one end is fixed in on the casing, casing upper portion activity inlays and is equipped with test button, electrically conductive experimental torsional spring one end is extended towards test button and is contradicted with test button and be connected, the casing is equipped with the linkage hole, electrically conductive experimental torsional spring is connected test button's other end gomphosis for contradicting in linkage hole department and towards the linkage hole outside and extend and can lead the electrical contact with circuit breaker module, the casing is located test button below and is equipped with test resistance, electrically conductive experimental torsional spring can be connected with test resistance intermittent type nature through test button.

By adopting the technical scheme, the structure of the test loop mechanism is improved, compared with the test loop module in the prior art, the test resistor and the breaker module can be intermittently connected only by using the conductive test torsion spring, the structure is simple, the parts are few, the installation space and the cost are saved, the integral assembly is convenient, and convenience is brought to the operation of workers; and no welding spot exists in the test loop, so that compared with the prior art, the welding is not needed, the processing procedure is simplified, and the manufacturing period is shortened.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: and a clamping position which can guide the conductive test torsion spring is arranged between the test button and the third hinged linkage shaft on the shell.

By adopting the technical scheme, the conducting test torsion spring can be limited by arranging the clamping position, so that the conducting test torsion spring is prevented from displacing, and the working stability of the conducting test torsion spring is improved.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the casing is located experimental button below and is equipped with the installation station of hidden installation test resistance, the casing is located installation station tip and is equipped with the support frame that can supply test resistance lead wire stores pylon.

By adopting the technical scheme, the installation station is arranged, so that the test resistor is conveniently and concealably installed on the shell, the space is reasonably utilized, and the overall layout of the leakage protection device is simple; the support frame is further arranged, the lead end of the test resistor can be fixed, and the conductive test torsion spring can be accurately and conductively connected with the test resistor after the test button is pressed down conveniently.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the handle linkage mechanism comprises a first handle capable of driving the breaker module to be linked, a fourth hinged linkage shaft hinged to the breaker shell is linked in the middle of the first handle, the fourth hinged linkage shaft is linked to a hidden handle capable of driving the leakage protection module relative to the other end of the first handle in a linkage mode, an intermittent linkage mechanism is arranged between the hidden handle and the first handle, and the hidden handle can be linked with the first handle intermittently through the intermittent linkage mechanism.

Adopt above-mentioned technical scheme, compare the handle among the prior art, through improving handle structure, set up first handle, hide handle, intermittent type nature link gear, can control heterogeneous circuit breaker through controlling first handle, realize a handle control double-phase circuit breaker operating device, reduce operating handle quantity, simplify the structure, save installation space.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the intermittent linkage mechanism comprises a second handle sleeved on the periphery of the hidden handle, the second handle is provided with an intermittent linkage area, the hidden handle is provided with a lug corresponding to the intermittent linkage area, the intermittent linkage mechanism further comprises a connecting rod arranged between the first handle and the second handle, and the first handle can drive the second handle to synchronously work through the connecting rod.

By adopting the technical scheme, the second handle can synchronously work with the first handle through the connecting rod, the handle can control the two-phase circuit breaker, and the circuit breaker module and the leakage protection device can be intermittently linked according to actual conditions through the matching relation of the intermittent linkage area and the lug; for example, when the breaker device is normally started without electric leakage and the like, the intermittent linkage area rotates along the effective rotating direction, and at the moment, the lug is not contacted with the intermittent linkage area until the second handle rotates to the end part of the intermittent linkage area along with the first handle to be close to the lug; once abnormal conditions such as electric leakage occur, the electric leakage protection device operates to hide the handle and push the end part of the intermittent linkage area through the convex block, and then the second handle drives the first handle to rotate, the brake is closed, and the protection circuit is started.

The 2P2 modulus electromagnetic earth leakage protection circuit breaker may be further configured as follows: the periphery of the first handle is provided with an indicating block.

By adopting the technical scheme, the indicating block can indicate the opening and closing of the switch, so that people can observe the switch conveniently.

The utility model has the advantages as follows:

one of them, adopt above-mentioned technical scheme, the circuit breaker adopts the design of modulization, sets up two-phase circuit breaker and earth leakage protection module in 2P2 modulus (36 mm) space, and two-phase circuit breaker also is first protection utmost point circuit breaker device and second protection utmost point circuit breaker device, and this two protection utmost point circuit breaker device inner structure, part are the same completely, and the whole has high interchangeability, and equipment, maintenance etc. are all comparatively convenient, and manufacturing process is simple, easy maintenance, and economic nature is good.

Secondly, by adopting the technical scheme, a group of connecting rods and contact levers are arranged, the first lock catch and the second lock catch are respectively linked to two sides of the contact lever through two ends of the first hinged linkage shaft, and the first moving contact and the second moving contact are further respectively linked to two sides of the contact lever through two ends of the second hinged linkage shaft, so that one handle can drive two groups of moving contacts, a single handle can control the multi-phase circuit breaker, the structure of a circuit breaker module is simplified, the structural complexity of the whole circuit breaker is reduced, the number of parts is reduced, the cost is reduced, and the circuit breaker is convenient to process and assemble;

thirdly, by adopting the technical scheme, the structure of the test loop mechanism is improved, compared with the test loop module in the prior art, the test resistor and the circuit breaker module can be intermittently connected only by utilizing the conductive test torsion spring, the structure is simple, parts are few, the installation space and the cost are saved, the integral assembly is convenient, and convenience is brought to the operation of workers; in addition, no welding spot exists in the test loop, compared with the prior art, welding is not needed, the processing procedure is simplified, and the manufacturing period is shortened;

fourth, adopt above-mentioned technical scheme, compare the handle among the prior art, through improving handle structure, set up first handle, hide handle, intermittent type nature link gear, can control heterogeneous circuit breaker through controlling first handle, realize a handle control double-phase circuit breaker operating device, reduce operating handle quantity, simplify the structure, save installation space.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of the internal structure layout of the embodiment of the present invention after the casing is removed after the assembly;

fig. 2 is a schematic view of a partial structure of a circuit breaker module according to an embodiment of the present invention;

FIG. 3 is a left side view of FIG. 2;

FIG. 4 is a schematic right-side view of FIG. 2;

fig. 5 is a schematic view of a first latch according to an embodiment of the present invention;

fig. 6 is a schematic view of a second locking device according to an embodiment of the present invention;

fig. 7 is a schematic view of a contact lever according to an embodiment of the present invention;

fig. 8 is a schematic front view of an assembled state of a first protection pole circuit breaker apparatus according to an embodiment of the present invention;

fig. 9 is a schematic front view of the earth leakage protection device according to the embodiment of the present invention;

fig. 10 is a schematic front view of a test loop mechanism according to an embodiment of the present invention;

fig. 11 is a schematic rear view of the earth leakage protection device according to the embodiment of the present invention after assembly;

fig. 12 is a schematic view of a handle linkage mechanism according to an embodiment of the present invention;

fig. 13 is a schematic view of a second handle according to an embodiment of the present invention;

fig. 14 is a schematic view of a hidden handle according to an embodiment of the present invention;

fig. 15 is a schematic view of a first handle according to an embodiment of the present invention.

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 obviously, 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.

As shown in fig. 1 to 15, a 2P2 modulus electromagnetic type earth leakage protection circuit breaker includes a housing 1, be equipped with circuit breaker module, earth leakage protection module, steerable circuit breaker module and earth leakage protection module's handle link gear 4 with circuit breaker module linkage in the housing 1, circuit breaker module is including setting up in the first protection utmost point circuit breaker device 2 of housing 1 one side, earth leakage protection module is including setting up in the earth leakage protection device 5 of housing 1 opposite side, circuit breaker module is still including setting up in housing 1 and being located the second protection utmost point circuit breaker device 3 between first protection utmost point circuit breaker device 2 and the earth leakage protection device 5, first protection utmost point circuit breaker device 2 is unanimous with the 3 inner structure of second protection utmost point circuit breaker device.

The first protection pole circuit breaker device 2 and the second protection pole circuit breaker device 3 both comprise a thermal tripping mechanism 6, an electromagnetic tripping mechanism 7 and an arc extinguishing system 8, the first protection pole circuit breaker device 2 further comprises a first connecting rod 21, a contact lever 22, a first lock 23 and a first moving contact 24, the shell 1 is provided with a first fixed contact 25 capable of intermittently linking with the first moving contact 24 at the side part of the first moving contact 24, the second protection pole circuit breaker device 3 further comprises a second lock 31 and a second moving contact 32, the shell 1 is provided with a second fixed contact 33 capable of intermittently linking with the first moving contact 24 (or the second moving contact 32) at the side part of the second moving contact 32, one end of the first connecting rod 21 is linked with the handle linkage mechanism 4 and the other end is linked with the end part of the contact lever 22, the middle part of the contact lever 22 is provided with a first hinge linkage shaft 221 with one end hinged on the shell 1 of the circuit breaker, the first lock 23 and the second lock 31 are respectively hinged to two ends of the first hinge linkage shaft 221 and located on two sides of the contact lever 22, the contact lever 22 is provided with a second hinge linkage shaft 222 relative to the other end of the linkage connecting rod, the middle portions of the first moving contact 24 and the second moving contact 32 are respectively hinged to two ends of the second hinge linkage shaft 222 and located on two sides of the contact lever 22, one end of the first lock 23, far away from the connecting rod, is intermittently linked with the first moving contact 24, one end of the second lock 23, far away from the connecting rod, is intermittently linked with the second moving contact 32, a first return spring 26 capable of being linked with the first moving contact 24 is sleeved at the hinge position of the first moving contact 24 of the second hinge linkage shaft 222, and a second return spring 34 capable of being linked with the second moving contact 32 is sleeved at the hinge position of the second moving contact 32 of the second hinge linkage shaft 222.

A relative linkage structure is arranged between the first lock catch 23 and the second lock catch 31. The relative linkage structure comprises an insertion column 311 arranged in the middle of the second lock catch 31 and facing one side of the first lock catch 23, the first lock catch 23 is provided with a linkage shaft hole 231 capable of being embedded with the insertion column 311, the contact lever 22 can push the first lock catch 23 to rotate around the first hinge linkage shaft 221 under the driving of the connecting rod, and the second lock catch 31 rotates around the first hinge linkage shaft 221 along with the first lock catch 23 through the insertion column 311.

The working principle of the first and second protection pole breaker devices 2 and 3 is as follows: when the switch is closed, the handle linkage mechanism 4 is pushed, the first connecting rod 21 pushes the contact lever 223 (22) to rotate through the flexible linkage block 12 at the lower end part driven by the handle linkage mechanism 4, the contact lever 223 pushes the first lock catch 23 to rotate around the first hinge linkage shaft 22 (221), meanwhile, the first lock catch 23 drives the second lock catch 31 to rotate around the first hinge linkage shaft 22 through the insertion column 311, and the first moving contact 24 and the second moving contact 32 are respectively contacted with the first static contact 25 and the second static contact 33 under the driving of the first lock catch 23 and the second lock catch 31, so that the switch is closed. The whole process is simple to operate, the two groups of moving contacts are driven by one handle, so that the single handle is used for controlling the multiphase circuit breaker, the structure of an operating mechanism is simplified, the overall structural complexity of the circuit breaker is reduced, the generation of parts is reduced, the cost is reduced, and the circuit breaker is convenient to machine and assemble.

The leakage protection device 5 comprises a leakage tripping action mechanism 59 and a test loop mechanism, wherein the test loop mechanism comprises a conductive test torsion spring 51, a third articulated universal driving shaft 52 is articulated at the middle part of the conductive test torsion spring 51, one end of the third articulated universal driving shaft 52 is fixed on the shell 1, a test button 53 is movably embedded in the upper part of the shell 1, one end of the conductive test torsion spring 51 extends towards the test button 53 and is connected with the test button 53 in an abutting mode, the housing 1 is provided with a linkage hole 54 at the second return spring 34, the other end of the conductive test torsion spring 51 opposite to the abutting connection test button 53 is embedded at the linkage hole 54 and extends towards the outer side of the linkage hole 54 and is in conductive contact with the second return spring 34, the shell 1 is positioned below the test button 53 and provided with a test resistor 55, and the conductive test torsion spring 51 can be intermittently and conductively connected with the test resistor 55 through the test button 53. A clamping position 56 which can guide the conductive test torsion spring 51 is arranged between the test button 53 and the third articulated universal driving shaft 52 of the shell 1. The shell 1 is positioned below the test button 53, an installation station 57 for mounting the test resistor 55 in a concealed mode is arranged below the test button 53, and a support frame 58 for hanging the lead of the test resistor 55 is arranged at the end part, positioned at the installation station 57, of the shell 1.

The working principle of the test loop mechanism is as follows: the test button 53 is pressed downwards, the end part of the conductive test torsion spring 51 is contacted with the lead end of the test resistor 55, and the other end of the conductive test torsion spring 51 is electrically connected with the second reset spring 34 in a conductive mode, so that a test loop is switched on, the test resistor 55 and the circuit breaker module are intermittently connected only by utilizing the conductive test torsion spring 51, the structure is simple, parts are rare, the installation space is saved, the cost is saved, the overall assembly is convenient, and convenience is brought to the operation of workers.

The leakage tripping action mechanism 59 comprises a leakage tripping device 591 arranged in a housing 1 and a first transmission rod 592 with one end intermittently linked with one side of the leakage tripping device 591, the middle part of the first transmission rod 592 is movably hinged on the housing 1, one end of the first transmission rod 592 close to the leakage tripping device 591 is in butt joint linkage with a second transmission rod 593, one end of the second transmission rod 593 is hinged on the housing 1, the other end of the second transmission rod 593 is in butt joint linkage with a third transmission rod 594, the middle part of the third transmission rod 594 is hinged on the housing 1, the housing 1 is positioned at the position where the third transmission rod 594 is hinged and coaxially hinged with a leakage tripping rod 595, the other end of the third transmission rod 594 is linked with the leakage tripping rod 595 relative to the linkage second transmission rod 593, the leakage tripping rod 595 is in linkage with a leakage reset torsion spring 596, and two ends of the leakage reset torsion spring 596 are respectively linked with the leakage tripping rod 595, The first driving rod 592 is interference-connected, and the earth leakage trip lever 595 is coupled with the handle linkage 4 through the second connecting rod 597 with respect to the other end connected to the first driving rod 592. A flexible connecting assembly is arranged between the electric leakage release 591 and the third transmission rod 594. The flexible connecting assembly comprises a spring 598, two ends of which are respectively and oppositely and fixedly connected with the electric leakage tripping rod 595 and the third transmission rod 594.

Electric leakage tripping working principle: when the conditions such as electric leakage occur, the electric leakage tripper 591 drives the first transmission rod 592, the first transmission rod 592 drives the second transmission rod 593 to rotate around a hinge shaft of the first transmission rod 592, the end of the second transmission rod 593 further pushes the third transmission rod 594, the third transmission rod 594 presses the electric leakage tripper 595 through the spring 598, the electric leakage tripper 595 drives the second lock catch 31 (the spring 598 rotates to enable the electric leakage flexible linkage block to be tripped, the electric leakage tripper returns under the action of the reset spring, the first pushing column is pulled to complete the power-off process), and the power-off process is completed.

The handle linkage mechanism 4 comprises a first handle 41 capable of driving the breaker module to be linked, a fourth hinged linkage shaft hinged to the breaker shell 1 is linked in the middle of the first handle 41, the fourth hinged linkage shaft is linked to a hidden handle 42 capable of driving the earth leakage protection module relative to the other end of the first handle 41, an intermittent linkage mechanism is arranged between the hidden handle 42 and the first handle 41, and the hidden handle 42 can be intermittently linked with the first handle 41 through the intermittent linkage mechanism. The intermittent linkage mechanism comprises a second handle 43 sleeved on the periphery of a hidden handle 42, the second handle 43 is provided with an intermittent linkage area 431, the hidden handle 42 is provided with a bump 421 corresponding to the intermittent linkage area 431, the intermittent linkage mechanism further comprises a connecting rod 44 arranged between the first handle 41 and the second handle 43, and the first handle 41 can drive the second handle 43 to synchronously work through the connecting rod 44. The first handle 41 is provided with an indication block 45 at the periphery.

The working principle of the handle linkage mechanism 4 is as follows: when the breaker device is normally started, the first handle 41 is pushed along the effective rotating direction, the first handle 41 drives the second handle 43 to rotate through the connecting rod 44, at the moment, the lug 421 is not contacted with the intermittent linkage area 431, the hidden handle 42 does not work, so that the leakage protection device 5 in the breaker does not work, and when the second handle 43 follows the rotating limit of the first handle 41, the end part of the intermittent linkage area 431 is close to the lug 421; when abnormal conditions such as electric leakage occur, the electric leakage protection device 5 works to drive the hidden handle 42 to rotate along the opposite direction of the effective work of the first handle 41, the lug 421 pushes the end part of the intermittent linkage area 431, the second handle 43 rotates along with the hidden handle 42, the connecting rod 44 drives the first handle 41 to rotate, the brake is closed, and the protection circuit is started. Compared with the prior handle, the handle structure is improved, the first handle 41, the hidden handle 42 and the intermittent linkage mechanism are arranged, the multiphase circuit breaker can be controlled by controlling the first handle 41, the two-phase circuit breaker operating mechanism controlled by one handle is realized, the number of operating handles is reduced, the structure is simplified, and the installation space is saved.

Claims (10)

1. The utility model provides a 2P2 modulus electromagnetic type earth leakage protection circuit breaker, includes the casing, be equipped with circuit breaker module in the casing, with the earth leakage protection module of circuit breaker module linkage, steerable circuit breaker module and earth leakage protection module's handle link gear, its characterized in that: the circuit breaker module is including setting up in the first protection utmost point circuit breaker device of casing one side, the earth leakage protection module is including setting up in the earth leakage protection device of casing opposite side, the circuit breaker module is still including setting up in the casing and being located the second protection utmost point circuit breaker device between first protection utmost point circuit breaker device and the earth leakage protection device, first protection utmost point circuit breaker device is unanimous with second protection utmost point circuit breaker device inner structure.

2. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 1, wherein: the first protection pole circuit breaker device and the second protection pole circuit breaker device respectively comprise a thermal tripping mechanism, an electromagnetic tripping mechanism and an arc extinguishing system, the first protection pole circuit breaker device further comprises a first connecting rod, a contact lever, a first lock catch and a first moving contact, the shell is positioned on the side part of the first moving contact and is provided with a first fixed contact capable of intermittently linking with the first moving contact, the second protection pole circuit breaker device further comprises a second lock catch and a second moving contact, the shell is positioned on the side part of the second moving contact and is provided with a second fixed contact capable of intermittently linking with the first moving contact, one end of the first connecting rod is linked with the handle linking mechanism, the other end of the first connecting rod is linked with the end part of the contact lever, the middle part of the contact lever is provided with a first hinged linkage shaft, one end of the first lock catch and one end of the second lock catch are hinged to two ends of the first hinged linkage shaft and are positioned on two sides of the contact lever, the contact lever is provided with a second hinged linkage shaft relative to the other end of the linkage connecting rod, the middle parts of the first moving contact and the second moving contact are respectively hinged to two ends of the second hinged linkage shaft and located on two sides of the contact lever, one end of the first lock catch, which is far away from the connecting rod, is intermittently linked with the first moving contact, one end of the second lock catch, which is far away from the connecting rod, is intermittently linked with the second moving contact, a first reset spring which can be linked with the first moving contact is sleeved at the position, where the second hinged linkage shaft is located, of the first moving contact, and a second reset spring which can be linked with the second moving contact is sleeved at the position, where the second moving contact is located, of the second moving contact.

3. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 2, wherein: and a relative linkage structure is arranged between the first lock catch and the second lock catch.

4. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 3, wherein: the relative linkage structure comprises an insertion column arranged in the middle of the second lock catch and facing one side of the first lock catch, the first lock catch is provided with a linkage shaft hole capable of being embedded with the insertion column, the contact lever can push the first lock catch to rotate around the first hinged linkage shaft under the driving of the connecting rod, and the second lock catch rotates around the first hinged linkage shaft along with the first lock catch through the insertion column.

5. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 1, wherein: the earth leakage protection device includes electric leakage tripping action mechanism, experimental return circuit mechanism includes electrically conductive experimental torsional spring, electrically conductive experimental torsional spring middle part articulates there is the third hinge universal driving shaft, third hinge universal driving shaft one end is fixed in on the casing, casing upper portion activity inlays and is equipped with test button, electrically conductive experimental torsional spring one end is extended towards test button and is contradicted with test button and be connected, the casing is equipped with the linkage hole, electrically conductive experimental torsional spring is connected test button's other end gomphosis for contradicting in linkage hole department and towards the linkage hole outside and extend and can lead the electrical contact with circuit breaker module, the casing is located test button below and is equipped with test resistance, electrically conductive experimental torsional spring can be connected with test resistance intermittent type nature through test button.

6. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 5, wherein: and a clamping position which can guide the conductive test torsion spring is arranged between the test button and the third hinged linkage shaft on the shell.

7. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 5, wherein: the casing is located experimental button below and is equipped with the installation station of hidden installation test resistance, the casing is located installation station tip and is equipped with the support frame that can supply test resistance lead wire stores pylon.

8. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 1, wherein: the handle linkage mechanism comprises a first handle capable of driving the breaker module to be linked, a fourth hinged linkage shaft hinged to the breaker shell is linked in the middle of the first handle, the fourth hinged linkage shaft is linked to a hidden handle capable of driving the leakage protection module relative to the other end of the first handle in a linkage mode, an intermittent linkage mechanism is arranged between the hidden handle and the first handle, and the hidden handle can be linked with the first handle intermittently through the intermittent linkage mechanism.

9. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 8, wherein: the intermittent linkage mechanism comprises a second handle sleeved on the periphery of the hidden handle, the second handle is provided with an intermittent linkage area, the hidden handle is provided with a lug corresponding to the intermittent linkage area, the intermittent linkage mechanism further comprises a connecting rod arranged between the first handle and the second handle, and the first handle can drive the second handle to synchronously work through the connecting rod.

10. The 2P2 modulus electromagnetic leakage protection circuit breaker of claim 9, wherein: the periphery of the first handle is provided with an indicating block.

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