CN109659210A - Breaker - Google Patents

Breaker Download PDF

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Publication number
CN109659210A
CN109659210A CN201811470300.0A CN201811470300A CN109659210A CN 109659210 A CN109659210 A CN 109659210A CN 201811470300 A CN201811470300 A CN 201811470300A CN 109659210 A CN109659210 A CN 109659210A
Authority
CN
China
Prior art keywords
contact
button
breaker
protection
conductive plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811470300.0A
Other languages
Chinese (zh)
Inventor
李�杰
朱俊
单军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chint Electrics Co Ltd
Original Assignee
Zhejiang Chint Electrics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Chint Electrics Co Ltd filed Critical Zhejiang Chint Electrics Co Ltd
Priority to CN201811470300.0A priority Critical patent/CN109659210A/en
Publication of CN109659210A publication Critical patent/CN109659210A/en
Priority claimed from PCT/CN2019/122030 external-priority patent/WO2020108624A1/en
Priority claimed from AU2019386913A external-priority patent/AU2019386913A1/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02Details
    • H01H73/04Contacts
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/36Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
    • H01H73/40Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by tumbler
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection

Abstract

A kind of breaker; including shell and it is disposed side by side on the breaker phase pole and earth leakage protective pole of shell two sides; the earth leakage protective pole includes zero sequence current mutual inductor, leaky operation mechanism and leakage tests mechanism, and the major loop of breaker phase pole passes through zero sequence current mutual inductor;Leakage tests mechanism includes elastic component, testing button, and it is respectively connected to first contact and the second contact at test loop both ends, one end of elastic component is equipped with the first contact portion cooperated with operating mechanism, the other end of elastic component is equipped with the second contact portion cooperated with testing button, leaky operation mechanism can push the first contact portion to contact with the first contact in breaker closing, testing button can push the second contact portion to contact with the second contact, mechanism for testing has the test loop of double breaking points by two contact compositions of the first contact portion and the second contact portion on elastic component, and the first contact portion and the second contact portion are driven by leaky operation mechanism and testing button respectively.

Description

Breaker
Technical field
The invention is related to Low Voltage Electrical Apparatus, more particularly to a kind of breaker.
Background technique
For the mechanism for testing of breaker due to being limited by shell space, the test loop of mechanism for testing generallys use single-break knot Structure, but when breaker open operation, if pressing the test button of mechanism for testing, the leading-out terminal of breaker can be because of test loop It is connected and voltage-to-ground occurs, the risk of electric shock is caused in use process, is also unsatisfactory for the security legislation of specific region, there are one Fixed limitation, therefore the test loop of mechanism for testing is changed to double-breakpoint structure by part breaker, one in double breaking points is disconnected Point is controlled by handle, test button just meeting continuity test circuit is pressed when handle closes a floodgate, but breakpoint is connected and disconnects speed Degree is influenced by handle switch closing and switch opening speed, if slow the problem of resetting occurs in handle, will lead to breakpoint opening velocity Slowly, at this moment if breaker is reversely connected, it will lead to test loop if pressing test button and disconnect slowly, burn the coil heating of breaker It ruins, the problem of purpose of breaker failure, seriously affects the reliability of breaker.
Summary of the invention
It is simple, high reliablity disconnected to provide a kind of structure for the defect for aiming to overcome that the prior art of the invention Road device.
To achieve the above object, the invention adopts the technical scheme that
A kind of breaker including shell and is disposed side by side on the breaker phase pole 1 and earth leakage protective pole 2 of shell two sides, The earth leakage protective pole 2 includes zero sequence current mutual inductor 21, leaky operation mechanism 22 and leakage tests mechanism 25, breaker phase pole 1 major loop passes through zero sequence current mutual inductor 21;Leakage tests mechanism 25 includes elastic component 26, testing button 29, and difference First contact 27 and the second contact 28 at test loop both ends are accessed, one end of elastic component 26 is equipped with matches with operating mechanism 14 The first contact portion 261 closed, the other end of elastic component 26 are equipped with the second contact portion 262 cooperated with testing button 29, electric leakage behaviour Making mechanism 22 can push the first contact portion 261 to contact with the first contact 27 in breaker closing, 29 energy of testing button The second contact portion 262 is enough pushed to contact with the second contact 28.
Preferably, the leaky operation mechanism 22 is including being pivoted on the intracorporal protection lever 221 of shell, and difference pivot Turn to be mounted on protection lever 221 and mutually snap-fitted protection tripping 222 and protection lock 224, protection tripping 222 with It protects one end of connecting rod 223 hinged, protects the other end of connecting rod 223 and circuit breaker handle 31 hinged, one end of protection lock 224 It is correspondingly arranged with leakage tripping device 23, the side of protection lever 221 is arranged in the first contact 27, and the first of elastic component 26 connects Contact portion 261, which reaches, to be cooperated between protection lever 221 and the first contact 27 with protection lever 221, and elastic component 26 drives when tripping Lever 221 is protected to rotate faster.
Preferably, the elastic component 26 is torsional spring, and elastic component 26 includes being connected to the first contact portion 261 and the second contact portion Spire 263 between 262, spire 263 are mounted on the spring shaft 260 of shell, the first contact portion 261 and the second contact portion 262 axis with spire 263 is vertically arranged, the first contact portion 261 reach protection lever 221 and the first contact 27 it Between, the second contact portion 262 reaches between testing button 29 and the second contact 28.4. preferred, 27 He of the first contact Second contact 28 is arranged below leaky operation mechanism 22, and the setting of the first contact 27 is in the second contact 28 and elasticity Between part 26, testing button 29 is located at 22 side of leaky operation mechanism and is located at 262 top of the second contact portion, the second contact portion 262 length is greater than the length of the first contact portion 261, the one end and testing button of the second contact portion 262 close to spire 263 29 cooperations, the other end of the second contact portion 262 pass through from the side of the first contact 27 and reach the top of the second contact 28, Lower section between the first contact 27 and elastic component 26 is equipped with the test resistance 251 connecting with the first contact 27.
Preferably, the back side of the protection lever 221 is equipped with first extended to 261 side of the first contact portion and pushes boss 2211, the side of protection lever 221 is equipped with second extended to side and pushes boss 2212, in the second promotion boss 2212 and the The promotion step surface 2213 limited to the first contact portion 261 is formed between one promotion boss 2211.
Preferably, first contact 27 includes the first conductive plate 271 along the setting of 263 axis direction of spire, bullet Property part 26 partition 32 between breaker phase pole 1 and earth leakage protective pole 2 is spaced setting, the first conductive plate 271 in the axial direction One end connect with partition 32, the other end of the first conductive plate 271 extends to protection lever 221 along the axis of spire 263 Side is vacantly arranged.
Preferably, first contact 27 further includes the second conductive plate 272,272 length direction of the second conductive plate and One conductive plate 271 is vertically arranged, and one end of the second conductive plate 272 and one end of the first conductive plate 271 are oppositely arranged, and second One end of conductive plate 272 is connect with the side of 271 side of the first conductive plate by third conductive plate 273 and forms the of U-shaped structure One mounting portion is equipped with the first mounting groove 270 connecting with the first mounting portion, the other end of the second conductive plate 272 on partition 32 Protruding first mounting groove 270.
Preferably, first conductive plate 271 is connect close to the side of 26 side of elastic component with the 4th conductive plate 274, the Three conductive plates 273, which are connect with the first conductive plate 271 far from the side of 26 side of elastic component, makes U-shaped the first mounting portion opening direction Elastic component 26 is equipped with test resistance 251 in the side far from the second conductive plate 272 between elastic component 26 and the first conductive plate 271, One end of 4th conductive plate 274 is vertical with the first mounting portion side being open to be connect, and the other end of the 4th conductive plate 274 is to test Resistance 251 extends, and the connecting hole 275 of connecting test resistance 251 is used on the 4th conductive plate 274.
Preferably, first contact portion 261 includes into the first contact arm 261a of U-shaped connection, the second contact arm 261b It is oppositely arranged with third contact arm 261c, the first contact arm 261a with third contact arm 261c, the second contact arm 261b vertically connects It connects between the first contact arm 261a and one end of third contact arm 261c, the other end and spire of the first contact arm 261a 263 connections, the other end of third contact arm 261c are connect with the 4th contact arm 261d, and the 4th contact arm 261d reaches testing button 29 and second between contact 28, and the first contact arm 261a of limit, the second contact arm 261b and third contact are equipped in shell The spring retainer groove 261e of arm 261c, the first contact portion 261 are inserted into spring retainer groove along the direction of the second contact arm 261b Limit cooperation in 261e;4th contact arm 261d setting substantially parallel with the first contact portion 261, the first contact arm 261a, second Contact arm 261b and third contact arm 261c is vertically arranged with the first contact portion 261.
Preferably, partition 32 is equipped between breaker phase pole 1 and earth leakage protective pole 2, partition 32 is equipped with along spire Second installation base 280 of 263 axis directions setting, the second contact 28 include into U-shaped and tip upside down on the second installation base 280 On the first conductor wire 281, one end of the first conductor wire 281 be located at the second installation base 280 top side and the second contact portion 262 Cooperation, the bottom side that the other end of the first conductor wire 281 is located at the second installation base 280 pass through the second conductor wire 282 and breaker The major loop of phase pole 1 connects.
Preferably, the testing button 29 includes button interconnecting piece 291 and is separately positioned on 291 liang of button interconnecting piece The other end of the button-operating portion 292 at end and button pushing part 293, button-operating portion 292 stretches out shell, button pushing part 293 The other end and the first contact portion 261 cooperate, button pushing part 293 and the interval of partition 32 are arranged, and are equipped on partition 32 to pressing The button guide plate 294 that button pushing part 293 extends is equipped in the side of button pushing part 293 and matches with the sliding of button guide plate 294 The button guide groove 295 of conjunction;Button interconnecting piece 291 is connect with one end of 293 top side of button pushing part, and button pushing part 293 is pushed up The other end and the shell limit of side cooperate, and are equipped in the bottom side of button pushing part 293 and reach 261 two sides of the first contact portion respectively First button pushing part 297 and the second button pushing part 298, the first button pushing part 297 and the second button pushing part 298 it Between formed with the first contact portion 261 limit cooperation button push slot 299;The side of button guide plate 294 is equipped with and connects with first The contact guide groove 296 that contact portion 261 cooperates.
Preferably, the middle part of protection 221 side of lever is equipped with the protection lever axis hole 2210 connecting with housing into rotation, The protection positive middle part of lever 221 is equipped with the lock axis hole 2218 connecting with lock 224, and corresponds in lock axis hole 2218 Two sides are respectively equipped with tripping axis 2217 and protection lever shaft 2216, and tripping axis 2217 is connect with tripping 222, protect lever shaft 2216 connect with shell;It protects 221 back side of lever corresponding and is equipped with the first lever boss in the other side of protection lever axis hole 2210 2214, the apex angle of the corresponding side in protection lever axis hole 2210 in the back side of protection lever 221 is equipped with to the first contact portion 261 1 The first promotion boss 2211 that side extends is equipped in protection lever axis hole 2210 relative to the other side of the first promotion boss 2211 Second lever boss 2215 is equipped with the first lever groove far from the side of protection lever axis hole 2210 in the first lever boss 2214 2215。
The breaker of the invention, mechanism for testing 25 are contacted by the first contact portion 261 and second on elastic component 26 262 two contacts in portion composition has a test loop of double breaking points, and the first contact portion 261 and the second contact portion 262 respectively by Leaky operation mechanism 22 and testing button 29 drive, and can not only guarantee to press testing button 29 in breaker phase 1 separating brake of pole It is not turned on test loop, improves the reliability of breaker, and elastic component 26 and leaky operation mechanism 22 cooperate, and can also improve The movement speed of leaky operation mechanism 22.
In addition, elastic component 26 can not only be directly sleeved on installation in shell using torsional spring, but also shell passes through spring retainer Slot 261e limits one end of elastic component 26, can further decrease the difficulty of assembly, also has structure simple and cost Low feature.
In addition, the first conductive plate 271 is by matching the one end being vacantly arranged and protection lever 221 and the first contact portion 261 It closes, can be buffered by natural resiliency when being contacted with the first contact portion 261, avoid leading to housing failure due to contacting firmly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of breaker;
Fig. 2 is the structural schematic diagram of earth leakage protective pole in embodiment one;
Fig. 3 is the front view of earth leakage protective pole in embodiment one;
Fig. 4 is another structural schematic diagram of earth leakage protective pole in embodiment one;
Fig. 5 is the structural schematic diagram of elastic component in embodiment one;
Fig. 6 is the structural schematic diagram of the first contact in embodiment one;
Fig. 7 is the structural schematic diagram of testing button in embodiment one;
Fig. 8 is the protection positive structural schematic diagram of lever in embodiment one;
Fig. 9 is the structural schematic diagram that the lever back side is protected in embodiment one;
Figure 10 is the front view of breaker phase pole in embodiment two;
Figure 11 is the front view of earth leakage protective pole in embodiment two;
Figure 12 is the cooperation schematic diagram of leakage tests mechanism and leaky operation mechanism in embodiment two;
Figure 13 is neutral pole moving contact in embodiment two, protection drive rod and protection lever and cooperation schematic diagram;
Figure 14 is the side view of Figure 12;
Figure 15 is the structural schematic diagram of elastic component in embodiment two;
Figure 16 is the structural schematic diagram that drive rod is protected in embodiment two;
Figure 17 is the structural schematic diagram of testing button in embodiment two;
Figure 18 is the cooperation schematic diagram of two centre shaft machine coupling driving bar of embodiment and protection lever 221.
Specific embodiment
Below in conjunction with the embodiment that attached drawing 1 to 18 provides, the specific implementation of the breaker of the invention is further illustrated Mode.The breaker of the invention is not limited to the following description.
Picture 1-4, shown in 9-10, the breaker of the invention includes shell and is disposed side by side on the disconnected of shell two sides Road device phase pole 1 and earth leakage protective pole 2, are equipped with partition 32 between breaker phase pole 1 and earth leakage protective pole 2, and breaker phase pole 1 is wrapped The static contact 111 and moving contact 112 for being oppositely arranged and being respectively connected to circuit are included, moving contact 112 is mounted on operating mechanism 14 and puts Dynamic to cooperate with static contact 111, the earth leakage protective pole 2 includes that zero sequence current mutual inductor 21, leaky operation mechanism 22 and electric leakage are surveyed The major loop of test-run a machine structure 25, breaker phase pole 1 passes through zero sequence current mutual inductor 21, and zero sequence current mutual inductor 21 can be in major loop In when there is leakage current, operating mechanism 14 is unlocked by leaky operation mechanism 22, moving contact 112 is driven to divide with static contact 111 It opens;
Leakage tests mechanism 25 includes elastic component 26, testing button 29, and is respectively connected to the master time of breaker phase pole 1 First contact 27 and the second contact 28 on road, one end of elastic component 26 are equipped with first cooperated with leaky operation mechanism 22 and connect Contact portion 261, the other end of elastic component 26 are equipped with the second contact portion 262 cooperated with testing button 29,22 energy of leaky operation mechanism Enough to push the first contact portion 261 to contact with the first contact 27 when breaker phase pole 1 is closed a floodgate, testing button 29 can push Second contact portion 262 is contacted with the second contact 28, the first contact portion 261 and the second contact portion 262 respectively with the first contact 27 and second contact 28 contact when can continuity test circuit leakage tests signal is generated in major loop.
The breaker of the invention, mechanism for testing 25 are contacted by the first contact portion 261 and second on elastic component 26 262 two contacts in portion composition has a test loop of double breaking points, and the first contact portion 261 and the second contact portion 262 respectively by Leaky operation mechanism 22 and testing button 29 drive, and can not only guarantee to press testing button 29 in breaker phase 1 separating brake of pole It is not turned on test loop, improves the reliability of breaker, and cooperate with leaky operation mechanism 22 by the first contact portion 261, The movement speed of leaky operation mechanism 22, especially route can also be improved to occur overloading or when leakage current, can help to leak Quickly trip breaker cuts off route for electrically operated mechanism 22.
If Figure 10 shows a kind of embodiment of operating mechanism 14, operating mechanism 14 includes breaker energy storage part, pivots peace The rocker arm 141 that is connected in shell with moving contact 112 is pivoted on rocker arm 141 and mutually snap-fitted jump respectively Button 142 and lock 143, and the connecting rod 144 hinged with tripping 142, the other end of connecting rod 144 and the breaker for stretching out shell Handle 31 is hinged, and when tripping 142 and mutually snap-fitted lock 143, operating mechanism 14 keeps balance, 31 energy of circuit breaker handle Enough driving operating mechanism 14 drives moving contact 112 to contact conducting major loop with static contact 111 and disconnects major loop separately to close a floodgate With separating brake breaker, and in making process be the energy storage of breaker energy storage part.
Further, breaker phase pole 1 includes electromagnetic release mechanism 12, double golden tripping mechanisms 13 and arc-extinguishing mechanism, static contact 111 are immobilized in the shell and are connect by major loop conduct piece with electromagnetic release mechanism 12 and the connecting terminal of left end 15, moving contact 112 are mounted on to swing on operating mechanism 14 and cooperate with static contact 111, and by major loop conduct piece and double golden tripping mechanisms 15 and The breaker connecting terminal 14 of right end connects, and when short circuit, overload and electric leakage occurs in circuit, passes through electromagnetic release mechanism respectively 12, double golden tripping mechanisms 13 and leaky operation mechanism 22 drive tripping 142 and lock 143 to be separated from each other and unbutton, and make operating mechanism 14 disequilibrium, being released by energy storing members, which can drive moving contact 112 to leave the disconnection major loop of static contact 111, cuts off faulty circuit in fact Now protect.
Refering to the embodiment one shown in Fig. 2-9, the leaky operation mechanism 22 and leakage tests mechanism 25 are correspondingly arranged at The side of 21 top of zero sequence current mutual inductor, the other side above zero sequence current mutual inductance 21 are equipped with leakage tripping device 23, open circuit Device handle 31 is correspondingly arranged at the top of leakage tripping device 23, and the leaky operation mechanism 22 is intracorporal including being pivoted on shell Lever 221 is protected, and is pivoted on protection lever 221 respectively and mutually snap-fitted protection tripping 222 and protection Lock 224, protection tripping 222 and one end of protection connecting rod 223 are hinged, protect the other end and circuit breaker handle 31 of connecting rod 223 Hingedly, one end of protection lock 224 is correspondingly arranged with leakage tripping device 23, and protection lever 221 is arranged in the first contact 27 Side, the first contact portion 261 of elastic component 26, which reaches, matches between protection lever 221 and the first contact 27 with protection lever 221 It closes, when circuit breaker handle 31 is rotated to closing position, passes through 224 driving of protection connecting rod 223, protection tripping 222 and protection lock Protection lever 221, which rotates, simultaneously pushes the first contact portion 261 to contact with the first contact 27, when circuit breaker handle 31 is to open position When rotation, drive protection lever 221 far from the first contact portion 261, the first contact portion 261 resets simultaneously under natural resiliency effect Circuit breaker handle 31 is pushed to accelerate to rotate to open position.
The first embodiment of elastic component 26 is shown in conjunction with Fig. 5, the elastic component 26 is torsional spring, and elastic component 26 includes connecting The spire 263 between the first contact portion 261 and the second contact portion 262 is connect, spire 263 is mounted on the spring shaft of shell On 260, the axis of the first contact portion 261 and the second contact portion 262 with spire 263 is vertically arranged, the first contact portion 261 Reach between protection lever 221 and the first contact 27, the second contact portion 262 reach testing button 29 and the second contact 28 it Between, the first contact portion 261 includes into the first contact arm 261a, the second contact arm 261b and third contact arm 261c of U-shaped connection, First contact arm 261a is oppositely arranged with third contact arm 261c, and the second contact arm 261b is vertically connected on the first contact arm 261a Between one end of third contact arm 261c, the other end of the first contact arm 261a is connect with spire 263, third contact arm The other end of 261c is connect with the 4th contact arm 261d, the 4th contact arm 261d reach testing button 29 and the second contact 28 it Between, the spring retainer groove of the first contact arm 261a of limit, the second contact arm 261b and third contact arm 261c are equipped in shell 261e.Elastic component 26 can not only be directly sleeved on installation in shell using torsional spring, but also shell passes through 261e pairs of spring retainer groove One end of elastic component 26 is limited, and the difficulty of assembly can be further decreased, and also has the characteristics that structure is simply and at low cost.
Further, the 4th contact arm 261d setting substantially parallel with the first contact portion 261, the first contact arm 261a, the second contact arm 261b and third contact arm 261c are vertically arranged with the first contact portion 261, can be improved elastic component 26 Balance can be more reliably immobilized in the shell when elastic component 26 is by torque.
Further, first contact 27 and the second contact 28 are arranged below leaky operation mechanism 22, described First contact 27 is arranged between the second contact 28 and elastic component 26, and testing button 29 is located at leaky operation mechanism 22 1 Side and it is located at the top of the second contact portion 262, the length of the second contact portion 262 is greater than the 4th contact arm of the first contact portion 261 The length of 261d, the second contact portion 262 cooperate close to one end of spire 263 and testing button 29, the second contact portion 262 The other end passes through from the side of the first contact 27 and reaches the top of the second contact 28, in the first contact 27 and elastic component Lower section between 26 is equipped with the test resistance 251 connecting with the first contact 27, not only has compact-sized and small in size spy Point, and the length of the second contact portion 262 is longer than the first contact portion 261, connects in the second contact portion 262 and the second contact 28 It can be contacted also more reliable to avoid the second installation base 280 of damage when touching using the elasticity of the second contact portion 262 itself.
A kind of preferred embodiment of first contact 27 is shown in conjunction with Fig. 6, first contact 27 includes along spiral First conductive plate 271 of 263 axis direction of portion setting, elastic component 26 is spaced with partition 32 in the axial direction to be arranged, and first is conductive One end of plate 271 is connect with partition 32, and the other end of the first conductive plate 271 extends to protection lever along the axis of spire 263 221 side is vacantly arranged.First conductive plate 271 is by by the one end being vacantly arranged and protection lever 221 and the first contact portion 261 cooperations, can buffer by natural resiliency when contacting with the first contact portion 261, avoid causing shell to damage due to contacting firmly It is bad.
Further, first contact 27 further includes the second conductive plate 272,272 length direction of the second conductive plate with First conductive plate 271 is vertically arranged, and one end of the second conductive plate 272 and one end of the first conductive plate 271 are oppositely arranged, the One end of two conductive plates 272 connect composition U-shaped structure with the side of 271 side of the first conductive plate by third conductive plate 273 First mounting portion, is equipped with the first mounting groove 270 for connecting with the first mounting portion on partition 32, the second conductive plate 272 it is another Protruding first mounting groove 270 is held, the second conductive plate 272 not only can be convenient for the first contact 27 by forming U-shaped structure It is reliably connected with shell, but also in order to grab the first contact 27 and fool proof, Neng Gouyou can be played the role of in assembly Effect reduces the difficulty of assembly.
Further, first conductive plate 271 is connect close to the side of 26 side of elastic component with the 4th conductive plate 274, Third conductive plate 273, which is connect with the first conductive plate 271 far from the side of 26 side of elastic component, makes U-shaped the first mounting portion opening court To elastic component 26, test resistance is equipped in the side far from the second conductive plate 272 between elastic component 26 and the first conductive plate 271 251, one end of the 4th conductive plate 274 is vertical with the first mounting portion side being open to be connect, the other end of the 4th conductive plate 274 to Test resistance 251 extends, and the connecting hole 275 of connecting test resistance 251 is used on the 4th conductive plate 274.First contact 27 test resistance 251 by being open the first mounting portion towards 26 side of elastic portion is arranged, while being open in the first mounting portion Side be arranged to test resistance 251 extend the 4th conductive plate 274, can not only compact first conductive plate 271 structure, subtract Few the space occupied volume, and can be convenient for connecting by modes such as welding with test resistance 251.In addition, test resistance 251 The connecting hole 275 that can initially pass through of one end lead is connect with the 4th conductive plate 274 again with the formation interlocking of the 4th conductive plate 274, no It only can be improved the intensity of connection, but also can reduce the difficulty of connection.Preferably, distinguish at the both ends of test resistance 251 Equipped with resistance fixed plate 252, the avoid holes of evacuation 251 both ends lead of test resistance are respectively equipped in two resistance fixed plates 252. It is of course also possible to be not provided with test resistance 251, and the opening of the first U-shaped mounting portion can also be directed away from elastic component 26 Side, belong to the protection scope of the invention.
A kind of preferred embodiment of second contact 28 is shown in conjunction with Fig. 3, the partition 32 is equipped with along spire 263 Second installation base 280 of axis direction setting, the second contact 28 include into U-shaped and tip upside down on the second installation base 280 The first conductor wire 281, the top side that one end of the first conductor wire 281 is located at the second installation base 280 is matched with the second contact portion 262 It closes, the bottom side that the other end of the first conductor wire 281 is located at the second installation base 280 is led by the second conductor wire 282 with major loop Electric part connection.
The first embodiment of testing button 29 is shown refering to Fig. 7, testing button 29 include button interconnecting piece 291 and Be separately positioned on button-operating portion 292 and the button pushing part 293 at 291 both ends of button interconnecting piece, button-operating portion 292 it is another Shell is stretched out at end, and the other end of button pushing part 293 and the first contact portion 261 cooperate, between button pushing part 293 and partition 32 Every setting, the button guide plate 294 (Fig. 3) extended to button pushing part 293 is equipped on partition 32, in button pushing part 293 Side be equipped with the button guide groove 295 that is slidably matched with button guide plate 294, by button guide plate 294 to testing button 29 guiding can make testing button 29 more smooth when acting, more reliable.
Further, the button interconnecting piece 291 is equipped at the U-shaped convex folding part 291a of button, in the convex folding part of button Button avoiding space 291b (Fig. 2) is formed between 291a and the side wall of shell, the convex folding part 291a of button and button pushing part 293 One end of top side connects, and the other end and the shell limit of 293 top side of button pushing part cooperate, in the bottom side of button pushing part 293 Equipped with the first button pushing part 297 and the second button pushing part 298 for reaching 261 two sides of the first contact portion respectively, pressed first It is formed between button pushing part 297 and the second button pushing part 298 and pushes slot with the button of the first contact portion 261 limit cooperation 299。
Further, the side of the button guide plate 294 is equipped with the contact guide groove cooperated with the first contact portion 261 296, it, can be along contact guide groove when the first contact portion 261 resets under the promotion of testing button 29 and by natural resiliency 296 slidings simultaneously limit the position after the first contact portion 261 resets by contact guide groove 296, survey button guide plate 294 in guiding When trying button 29, it can also play the role of being oriented to the first contact portion 261, in addition, button guide plate 294 can also form The side wall of spring retainer groove 261e.
Refering to the first embodiment for protecting lever 221 show Fig. 8-9, protection lever 221 is at sector, in protection lever The middle part of 221 sides is equipped with the protection lever axis hole 2210 that connect with housing into rotation, the protection positive middle part of lever 221 equipped with The lock axis hole 2218 of 224 connection of lock, and the corresponding two sides in lock axis hole 2218 are respectively equipped with tripping axis 2217 and protect Lever shaft 2216 is protected, tripping axis 2217 is connect with tripping 222, and protection lever shaft 2216 is connect with shell;Lever 221 is protected to carry on the back The corresponding other side in protection lever axis hole 2210 in face is equipped with the first lever boss 2214, and the back side of protection lever 221 corresponds to It protects the apex angle of the side of lever axis hole 2210 to be equipped with first extended to 261 side of the first contact portion and pushes boss 2211, Lever axis hole 2210 is protected to push the other side of boss 2211 to be equipped with the second lever boss 2215 relative to first, in the first lever Boss 2214 is equipped with the first lever groove 2215 far from the side of protection lever axis hole 2210, by setting on protection lever 221 Setting the first promotion boss 2211 pushes the first contact portion 261 that can guarantee that the first contact portion 261 can be abutted against with the first contact 27 Touching.
It is convex that the apex angle that the protection lever 221 is equipped with the first promotion boss 2211 is equipped with the second promotion extended to side Platform 2212 forms the promotion limited to the first contact portion 261 between the second promotion boss 2212 and the first promotion boss 2211 Step surface 2213 pushes step surface 2213 that can make to protect lever 221 that can cooperate with the first contact portion 261 with more leaning on, prevents the One contact portion 261 and first pushes boss 2211 to misplace.
Embodiment two shown in 0-18 refering to fig. 1, the earth leakage protective pole 2 include zero sequence current mutual inductor 21, electric leakage behaviour Make mechanism 22, leakage tests mechanism 25, and is oppositely arranged on the intracorporal neutral pole static contact 211 of shell and neutral pole moving contact 212, for neutral pole moving contact 212 by protecting drive rod 225 to connect with leaky operation mechanism 22, protection drive rod 225 passes through axis Machine coupling driving bar 220 is hinged with the side of leaky operation mechanism 22, the other side of leaky operation mechanism 22 and circuit breaker handle 31 connections, axis machine coupling driving bar 220 and the swinging plane of protection drive rod 225 are vertically arranged, and axis machine coupling driving bar 220 both ends are connect with protection drive rod 225 and leaky operation mechanism 22 respectively, and the setting of the first contact 27 is coupled in axis machine drives First contact portion 261 of the side of lever 220, elastic component 26 reaches between axis machine coupling driving bar 220 and the first contact 27 Cooperate with the middle part of axis machine coupling driving bar 220, testing button 29 can push the second contact portion 262 to connect with the second contact 28 Touching, in breaker closing, axis machine coupling driving bar 220 pushes the first contact portion 261 to contact with the first contact 27.
When circuit breaker handle 31 is rotated to closing position, leaky operation mechanism 22 is driven by axis machine coupling driving bar 220 It protects drive rod 225 that neutral pole static contact 211 and neutral pole moving contact 212 is driven to contact, and passes through axis machine coupling driving bar 220 The first contact portion 261 is pushed to contact with the first contact 27, when circuit breaker handle 31 is rotated to open position, band moving axis machine coupling Drive rod 220 is closed far from the first contact portion 261, the first contact portion 261 resets under natural resiliency effect and pushes breaker hand Handle 31 accelerates to rotate to open position.Present embodiment, on the basis of the test loop of double breaking points, the first contact portion 261 by The driving of moving axis machine coupling driving bar 220 of leaky operation mechanism 22 is contacted with the first contact 27, can not only be guaranteed in open circuit Testing button 29 is pressed when device phase 1 separating brake of pole and is not turned on test loop, further increases the reliability of breaker, and elastic component 26 cooperate with moving axis machine coupling driving bar 220, can also further increase the movement speed of leaky operation mechanism 22.
As a kind of preferred embodiment of leaky operation mechanism 22, leaky operation mechanism 22 includes being pivoted on shell Interior protection lever 221, and be pivoted on protect 222 He of protection tripping on lever 221 and mutually snap-fitted respectively Protection lock 224, protection tripping 222 and one end of protection connecting rod 223 are hinged, protect the other end and breaker hand of connecting rod 223 Handle 31 is hinged, and protection drive rod 225 is hinged by axis machine coupling driving bar 220 and protection lever 221, neutral pole moving contact 212 It is hinged with protection drive rod 225, and neutral pole moving contact 212 is connect with 227 one end of reset spring, 227 other end of reset spring It is connect with shell, circuit breaker handle 31 can be driven when protecting tripping 222 and protection lock 224 is mutually snap-fitted by protection Lever 225 drives neutral pole moving contact 212 to swing.Protect the one of one end of axis machine coupling driving bar 220 and protection drive rod 225 End connection, protection lever 221 are equipped with the axis machine coupling driving rod through-hole cooperated with 220 other end of axis machine coupling driving bar, axis The other end of machine coupling driving bar 220 passes through from axis machine coupling driving rod through-hole and reaches the other side and the limit of protection lever 221 Product 226 connects.Certain leaky operation mechanism 22 can also use other schemes.
Refering to fig. 11, making process are as follows: handle 31 rotates clockwise, and handle 31 pushes connecting rod 223, and connecting rod 223, which pushes, jumps Button 222 and lock 224 drive protection lever 221 rotationally clockwise, and pass through protection 221 compression elastic piece 261 of lever storage Can, until mechanism is closed.
Tripping process are as follows: when route occurs overloading or leakage current, leakage tripping device 23 push lock 224 and tripping 222 It unbuttons and release guard lever 221, protection lever 221 can be in the counterclockwise direction under 261 effect of reset spring and contracting elasticity It rotates more quickly.
Further, described 227 one end of reset spring is connect with neutral pole moving contact 212, the other end and the second contact 28 Connection.Second contact 28 plays the role of test loop breakpoint, while playing fixed reset spring 227 again.Together When reset spring 227 play the role of cooperating with neutral pole moving contact 212, and play neutral pole moving contact 212 and second The effect that contact 28 is electrically connected.
Further, neutral pole moving contact 212 is arranged in close to the one of neutral pole static contact 211 in second contact 28 Side of the neutral pole moving contact 212 far from neutral pole static contact 211 is arranged in side, the first contact 27 and elastic component 26, neutral Pole moving contact 212 is connect by reset spring 227 with the second contact 28, and the second contact portion 262 is from neutral pole moving contact 212 Side is passed through to be cooperated with the second contact 28, and first contact 27 and the test resistance 251 that is arranged in below the first contact 27 Connection, by the way that the first contact 27 and the second contact 28 to be separately positioned on to the two sides of neutral pole static contact 211, not only has The characteristics of having compact-sized, shift motion short and quick action, and the second contact 28 is in the effect in continuity test circuit On the basis of, play the role of resetting neutral pole moving contact 212 by connecting with reset spring 227, kill two birds with one stone, it is ingenious in design.
2-16 shows a kind of preferred embodiment of protection drive rod 225 refering to fig. 1, and one end of protection drive rod 225 is set There is the axis machine coupling driving boss 2251 being axially arranged along axis machine coupling driving bar 220, on axis machine coupling driving boss 2251 Equipped with the axis machine coupling driving hole 2252 on axis machine coupling driving bar 220 is covered, touching is equipped in the other end of protection drive rod 225 Head driving boss 2253 is equipped with the contact drive rod being rotatablely connected with neutral pole moving contact 212 on contact driving boss 2253 2254, contact drive rod 2254 and the swinging plane of neutral pole moving contact 212 are vertically arranged, the stacking of protection 225 one end of drive rod On protection lever 221, neutral pole moving contact 212 is stacked on the other end of neutral pole moving contact 212 for setting.This reality Mode is applied by the way that axis machine coupling driving hole 2252 is arranged in one end of protection drive rod 225, and in the another of protection drive rod 225 One end setting contact drive rod 2254 has the characteristics that structure is simple, easy to process and convenient for assembling, and axis machine coupling driving Boss 2251 can be improved the intensity that axis machine coupling driving hole 2252 is connect with axis machine coupling driving bar 220.
5 second of embodiment for showing elastic component 26 refering to fig. 1, the elastic component 26 are torsional spring, and elastic component 26 includes The spire 263 being connected between the first contact portion 261 and the second contact portion 262,263 sets of spire on spring shaft 260 with Shell connection, the axis of the first contact portion 261 and the second contact portion 262 with spire 263 are vertically arranged, the first contact portion 261 reach between protection lever 221 and the first contact 27, and the second contact portion 262 reaches testing button 29 and the second contact Between 28.
First contact portion 261 includes into the first contact arm 261a, the second contact arm 261b and third contact arm of U-shaped connection 261c, the first contact arm 261a are oppositely arranged with third contact arm 261c, and the second contact arm 261b is vertically connected on the first contact Between arm 261a and one end of third contact arm 261c, the other end of the first contact arm 261a is connect with spire 263, third The other end of contact arm 261c is connect with the 4th contact arm 261d, and the 4th contact arm 261d reaches testing button 29 and contacts with second Between part 28, the first contact portion 261 is inserted into spring retainer groove 261e along the direction of the second contact arm 261b and limits cooperation.
Further, first contact 27 is oppositely arranged on the two of elastic component 26 with axis machine coupling driving bar 220 Side, the 4th contact arm 261d of the first contact portion 261 at V-shape, drive to by the coupling of paraxial machine by one end of the 4th contact arm 261d The side of lever 220 tilts, and the other end of the 4th contact arm 261d is tilted to the side close to the first contact 27.First contact Portion 261 can not only be effectively reduced the first contact portion 261 and be contacted with first by the 4th contact arm 261d being arranged at V-shape Distance between part 27 accelerates the speed in continuity test circuit, and elasticity is also higher, has not only had the characteristics that reset speed was fast, but also It will not be due to contacting the first contact 27 of damage firmly.
Further, the end of the 4th contact arm 261d is equipped with to the curved bending contact arm of the first contact 27 The outside of 261f, bending contact arm 261f are engaged with the first contact 27, are capable of increasing contact area, guarantee reliable Contact.
Refering to fig. 1 shown in 2-16, the middle part of the neutral pole moving contact 212 is equipped with the moving contact guide groove at triangle 213, shell is interior to be equipped with the moving contact guide post 214 for being inserted into and cooperating in moving contact guide groove 213 with moving contact guide groove 213, again One end cap of position spring 227 in guide groove 213, distinguish by the corresponding two sides in moving contact guide groove 213 of neutral pole moving contact 212 Neutrality equipped with protection drive rod axis hole and neutral pole movable contact 215, on neutral pole movable contact 215 and neutral pole static contact 211 Pole stationary contact 216 is engaged.The neutral pole moving contact 212 of present embodiment, with small in size, structure is simple and easy to process The characteristics of production, can be reduced the cost of production and the difficulty of assembly.
Further, the neutral pole moving contact 212 is at V-shape, and the middle part of neutral pole moving contact 212 is to close to the second contact The side protrusion of part 28, and the opening 217 of the first contact 27 of evacuation is formed in the other side of neutral pole moving contact 212, it is described Neutral pole movable contact 215 and protection drive rod axis hole be separately positioned on V type neutral pole moving contact 212 both ends, in neutrality The side of pole moving contact 212 is equipped with the test resistance 251 connecting with the first contact 27, can be avoided mutually dry between part It relates to, the structure of further compact mechanism for testing, and reduces the space occupied.
1,17 second of embodiment for showing testing button 29 refering to fig. 1, testing button 29 include button interconnecting piece 291 And it is separately positioned on button-operating portion 292 and the button pushing part 293 at 291 both ends of button interconnecting piece, button-operating portion 292 The other end stretches out shell, and the other end of button pushing part 293 and the first contact portion 261 cooperate, and button interconnecting piece 291 is pushed away with button The other end and the shell limit of one end connection of dynamic 293 top side of portion, 293 top side of button pushing part cooperate, in button pushing part 293 Bottom side be equipped with and reach the first button pushing part 297 and the second button pushing part 298 of 261 two sides of the first contact portion respectively, It is formed between first button pushing part 297 and the second button pushing part 298 and is pushed with the button of the first contact portion 261 limit cooperation Slot 299.
It, cannot the above content is combining specific preferred embodiment to be further described to made by the invention Assert that the specific implementation of the invention is only limited to these instructions.For the ordinary skill of the invention technical field For personnel, without departing from the concept of the premise of the invention, a number of simple deductions or replacements can also be made, should all regard For the protection scope for belonging to the invention.

Claims (12)

1. a kind of breaker, including shell and it is disposed side by side on the breaker phase pole (1) and earth leakage protective pole of shell two sides (2), it is characterised in that: the earth leakage protective pole (2) includes zero sequence current mutual inductor (21), leaky operation mechanism (22) and electric leakage The major loop of mechanism for testing (25), breaker phase pole (1) passes through zero sequence current mutual inductor (21);Leakage tests mechanism (25) includes Elastic component (26), testing button (29), and it is respectively connected to first contact (27) and the second contact at test loop both ends (28), one end of elastic component (26) is equipped with the first contact portion (261) for cooperating with operating mechanism (14), elastic component (26) it is another End is equipped with the second contact portion (262) cooperated with testing button (29), and leaky operation mechanism (22) can be in breaker closing Push the first contact portion (261) to contact with the first contact (27), testing button (29) can push the second contact portion (262) with Second contact (28) contact.
2. breaker according to claim 1, it is characterised in that: the leaky operation mechanism (22) includes being pivoted on The intracorporal protection lever (221) of shell, and be pivoted in protection lever (221) respectively and mutually snap-fitted protection is jumped (222) and protection lock (224) are detained, protection tripping (222) and one end of protection connecting rod (223) are hinged, protection connecting rod (223) Hingedly, one end of protection lock (224) is correspondingly arranged with leakage tripping device (23), and first connects for the other end and circuit breaker handle (31) In the side of protection lever (221), the first contact portion (261) of elastic component (26) reaches protection lever for contact element (27) setting (221) with protection lever (221) cooperation between the first contact (27), elastic component (26) drives protection lever when tripping (221) rotation faster.
3. breaker according to claim 2, it is characterised in that: the elastic component (26) is torsional spring, elastic component (26) packet The spire (263) being connected between the first contact portion (261) and the second contact portion (262) is included, spire (263) is mounted on shell On the spring shaft (260) of body, the first contact portion (261) and the second contact portion (262) is vertical with the axis of spire (263) sets It sets, the first contact portion (261) reaches between protection lever (221) and the first contact (27), and the second contact portion (262) reaches survey It tries between button (29) and the second contact (28).
4. breaker according to claim 3, it is characterised in that: first contact (27) and the second contact (28) Below leaky operation mechanism (22), first contact (27) is arranged in the second contact (28) and elastic component (26) for setting Between, testing button (29) is located at leaky operation mechanism (22) side and is located above the second contact portion (262), the second contact portion (262) length is greater than the length of the first contact portion (261), the one end and survey of the second contact portion (262) close to spire (263) Button (29) cooperation is tried, the other end of the second contact portion (262) passes through from the side of the first contact (27) and reaches second and connects The top of contact element (28), the lower section between the first contact (27) and elastic component (26) is equipped with to be connect with the first contact (27) Test resistance (251).
5. breaker according to claim 2, it is characterised in that: the back side of protection lever (221) is equipped with to first What contact portion (261) side extended first pushes boss (2211), and the side of protection lever (221) is equipped with extend to side the Two push boss (2212), push second and are formed between boss (2212) and the first promotion boss (2211) to the first contact portion (261) the promotion step surface (2213) limited.
6. breaker according to claim 3, it is characterised in that: first contact (27) includes along spire (263) axis direction setting the first conductive plate (271), elastic component (26) in the axial direction with breaker phase pole (1) and electric leakage The partition (32) between pole (2) is protected to be spaced setting, one end of the first conductive plate (271) is connect with partition (32), and first is conductive The other end of plate (271) is vacantly arranged along the side that the axis of spire (263) extends to protection lever (221).
7. breaker according to claim 6, it is characterised in that: first contact (27) further includes the second conductive plate (272), the second conductive plate (272) length direction is vertically arranged with the first conductive plate (271), and the one of the second conductive plate (272) End is oppositely arranged with one end of the first conductive plate (271), one end of the second conductive plate (272) by third conductive plate (273) and First mounting portion of the side connection composition U-shaped structure of the first conductive plate (271) side, is equipped with and the first peace on partition (32) The first mounting groove (270) of dress portion connection, protruding first mounting groove (270) of the other end of the second conductive plate (272).
8. breaker according to claim 7, it is characterised in that: first conductive plate (271) is close to elastic component (26) The side of side is connect with the 4th conductive plate (274), and third conductive plate (273) and the first conductive plate (271) are far from elastic component (26) the side connection of side makes the first U-shaped mounting portion be open towards elastic component (26), elastic component (26) and the first conductive plate (271) between far from the second conductive plate (272) side be equipped with test resistance (251), one end of the 4th conductive plate (274) with The side of first mounting portion opening vertically connects, and the other end of the 4th conductive plate (274) extends to test resistance (251), and The connecting hole (275) of connecting test resistance (251) is used on 4th conductive plate (274).
9. breaker according to claim 3, it is characterised in that: first contact portion (261) includes into U-shaped connection First contact arm (261a), the second contact arm (261b) and third contact arm (261c), the first contact arm (261a) connect with third Contact arm (261c) is oppositely arranged, and the second contact arm (261b) is vertically connected on the first contact arm (261a) and third contact arm Between the one end of (261c), the other end of the first contact arm (261a) is connect with spire (263), third contact arm (261c) The other end is connect with the 4th contact arm (261d), and the 4th contact arm (261d) reaches testing button (29) and the second contact (28) Between, the bullet of limit the first contact arm (261a), the second contact arm (261b) and third contact arm (261c) is equipped in shell Spring limiting slot (261e), the first contact portion (261) are inserted into spring retainer groove (261e) along the direction of the second contact arm (261b) Interior limit cooperation;4th contact arm (261d) setting substantially parallel with the first contact portion (261), the first contact arm (261a), Two contact arms (261b) and third contact arm (261c) are vertically arranged with the first contact portion (261).
10. breaker according to claim 3, it is characterised in that: breaker phase pole (1) and earth leakage protective pole (2) it Between be equipped with partition (32), partition (32) is equipped with the second installation base (280) for being arranged along spire (263) axis direction, the Two contacts (28) include into U-shaped and tip upside down on the first conductor wire (281) on the second installation base (280), the first conductor wire (281) one end is located at the top side of the second installation base (280) and the second contact portion (262) cooperate, the first conductor wire (281) The bottom side that the other end is located at the second installation base (280) is connected by the second conductor wire (282) and the major loop of breaker phase pole (1) It connects.
11. breaker according to claim 4, it is characterised in that: the testing button (29) includes button interconnecting piece (291) button-operating portion (292) and button pushing part (293) at button interconnecting piece (291) both ends, button are separately positioned on and The other end of operation portion (292) stretches out shell, the other end and the first contact portion (261) cooperation of button pushing part (293), button Pushing part (293) and partition (32) interval are arranged, and the button guiding extended to button pushing part (293) is equipped on partition (32) Plate (294) is equipped with the button guide groove being slidably matched with button guide plate (294) in the side of button pushing part (293) (295);Button interconnecting piece (291) is connect with one end of button pushing part (293) top side, button pushing part (293) top side it is another One end and shell limit cooperate, and are equipped in the bottom side of button pushing part (293) and reach the of the first contact portion (261) two sides respectively One button pushing part (297) and the second button pushing part (298), in the first button pushing part (297) and the second button pushing part (298) it is formed between and pushes slot (299) with the button of the first contact portion (261) limit cooperation;The side of button guide plate (294) Equipped with the contact guide groove (296) cooperated with the first contact portion (261).
12. breaker according to claim 5, it is characterised in that: it is described protection lever (221) side middle part be equipped with The protection lever axis hole (2210) of housing into rotation connection, protection lever (221) positive middle part, which is equipped with, to be connect with lock (224) It latches axis hole (2218), and the corresponding two sides in lock axis hole (2218) are respectively equipped with tripping axis (2217) and protection lever shaft (2216), tripping axis (2217) is connect with tripping (222), and protection lever shaft (2216) is connect with shell;Protect lever (221) back The corresponding other side in protection lever axis hole (2210) in face is equipped with the first lever boss (2214), protects the back side of lever (221) It is convex that the apex angle of the corresponding side in protection lever axis hole (2210) is equipped with the first promotion extended to the first contact portion (261) side Platform (2211) pushes the other side of boss (2211) to be equipped with the second lever boss in protection lever axis hole (2210) relative to first (2215), the first lever groove is equipped with far from the side of protection lever axis hole (2210) in the first lever boss (2214) (2215)。
CN201811470300.0A 2018-11-30 2018-11-30 Breaker Pending CN109659210A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811470300.0A CN109659210A (en) 2018-11-30 2018-11-30 Breaker

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201811470300.0A CN109659210A (en) 2018-11-30 2018-11-30 Breaker
PCT/CN2019/122030 WO2020108624A1 (en) 2018-11-30 2019-11-29 Circuit breaker
AU2019386913A AU2019386913A1 (en) 2018-11-30 2019-11-29 Circuit breaker
EP19890761.0A EP3889987A1 (en) 2018-11-30 2019-11-29 Circuit breaker

Publications (1)

Publication Number Publication Date
CN109659210A true CN109659210A (en) 2019-04-19

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Application Number Title Priority Date Filing Date
CN201811470300.0A Pending CN109659210A (en) 2018-11-30 2018-11-30 Breaker

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Country Link
CN (1) CN109659210A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020108624A1 (en) * 2018-11-30 2020-06-04 浙江正泰电器股份有限公司 Circuit breaker

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020108624A1 (en) * 2018-11-30 2020-06-04 浙江正泰电器股份有限公司 Circuit breaker

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