CN106653499A - Release apparatus of residual current operated circuit breaker - Google Patents
Release apparatus of residual current operated circuit breaker Download PDFInfo
- Publication number
- CN106653499A CN106653499A CN201710148025.XA CN201710148025A CN106653499A CN 106653499 A CN106653499 A CN 106653499A CN 201710148025 A CN201710148025 A CN 201710148025A CN 106653499 A CN106653499 A CN 106653499A
- Authority
- CN
- China
- Prior art keywords
- release
- release lever
- button
- electric leakage
- residual current
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a release apparatus of a residual current operated circuit breaker. The release apparatus comprises a shell, an electric leakage release device, a release rod, a release mechanism, a magnetic release device, an indicating part, a reset button, a reset spring, a test button and the like, wherein the shell consists of a power supply end shell and a lengthened load end shell; when the electric leakage release device receives an electric leakage instruction, a top rod of the electric leakage release device, by overcoming the acting force of the reset spring, pushes a transmission board of the indicating part; the transmission board drives the release rod to slide in a guiding groove; the other end of the release rod pushes a lock catch of the release mechanism to drive the release mechanism to act to switch off a circuit; the indicating surface of the indicating part is converted into a switch-off indicating state, and the reset button pops up at the same time; and the shell is provided with the test button used for performing periodic detection on the electric leakage protection function of the product in a normal operation. The release apparatus of the residual current operated circuit breaker has simple and concise structure, small size, convenience in processing and automatic assembling, high electric leakage action speed, no misoperation and high reliability.
Description
Technical field
The present invention relates to low-voltage electrical technical field, specifically a kind of trip gear of residual current action breaker.
Background technology
Residual current action breaker be the function of detection residual current together with the function combinations of main circuit are disconnected,
Also circuit can be transshipped simultaneously and short-circuit protection a kind of multifunctional usage chopper, when the person gets an electric shock or electrical network leakage
When electric current exceedes setting, residual current action breaker can within the extremely short time rapid disengagement failure power supply, protection is personal
And the safety of electrical equipment.
The trip gear of traditional residual current action breaker, typically using magnetic release, by normal electricity in circuit
During stream, less than the pulling force of counteracting force spring, armature can not be dynamic by electric magnet suction, and chopper is normal for the electromagnetic force that electric magnet is produced
Operation；When occurring short trouble in circuit, electric current exceedes the fixed ceiling of normal current, and the electromagnetic force that electric magnet is produced is more than
The active force of counteracting force spring, armature inhales dynamic by drive mechanism promotion free tripping mechanism release main contact by electric magnet,
Main contact separately cuts off circuit in the presence of tripping spring and plays leak electricity short-circuit protective effect, and this trip gear structure is answered
It is miscellaneous, it is bulky, and also residual current trip action and dynamic trip action of short-circuit wink all must pull against same compression spring
Elastic force, is susceptible to misoperation, and functional reliability is not high.
The content of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, there is provided a kind of residual current action breaker it is de-
Buckle device, with simple for structure, small volume, be easy to processing and Automated assembly, electric leakage quick action, malfunction will not occur
Work, reliability are high.
Realization the technical scheme is that：A kind of trip gear of residual current action breaker, including housing, electric leakage
Electrical apparatus release, release lever, tripping mechanism, magnetic release, indication piece, SR, back-moving spring and test button etc., wherein leaking electricity
Electrical apparatus release is connected to electric leakage instruction so as to which push rod overcomes the active force of back-moving spring to promote the driver plate of indication piece, driver plate to drive
Release lever slides in gathering sill, and the other end of release lever promotes the lock of tripping mechanism, so as to drive tripping mechanism action, electricity
Road disconnects, and the index plane of indication piece is transformed into separating brake instruction state, while SR is upspring；Arrange a test on housing to press
Button, periodic detection product creepage protection function during normal work.
In above-mentioned technical proposal, wherein housing adopts two-part structure by power supply end housing and lengthening load end housing, just
In processing assembling；The lower central position of two sections of inwall correspondence magnetic releases respectively sets a deep bar shaped gathering sill of the grade for communicating,
Groove depth 0.8mm to 1.2mm is oriented to, as release lever sliding groove slidably.
In above-mentioned technical proposal, wherein release lever is designed in big " u "-shaped, and at " u "-shaped two ends, bending part respectively arranges one
Angle, plays a part of to strengthen intensity, and release lever bottom rear arranges two gib blocks along two sides, can effectively reduce threading off
Frictional force of the bar in gathering sill slidably, release lever slides more lightly, and release lever is located at the lower section of magnetic release, release lever
With magnetic release in the case of normal operation of circuit breaker under overload short circuit and earth leakage protective state without interference effect.
In above-mentioned technical proposal, wherein indication piece is made up of axle sleeve, indicator board and driver plate, and wherein round sleeve is arranged on
In fixing axle on housing, axle sleeve is column structure, and axle sleeve top is connected with wedge indicator board, and indicator board upper surface is flat for arc
Face, is made up of reset index plane and separating brake index plane, has a groove area to separate between two index planes, and wherein reset index plane refers to
Show "on" position, separating brake index plane indicates electric leakage gate-dividing state, and indicator board lower surface is a horizontal plane, is locating surface, is closing
Under lock state and electric leakage gate-dividing state, locking positioning action is played when indication piece contacts with SR, axle sleeve lower section and
Individual rectangle driver plate is fixedly linked, two driving faces of the driver plate left and right sides, is acted on the push rod of leakage tripping device
Push rod driving face and release lever effect release lever driving face.
In above-mentioned technical proposal, wherein SR is square structure, including button body and latch composition, wherein pressing
Button body is a square structure, and in the body bottom is connected with a square latch, and latch is rectangular aperture slot structure,
The upper surface of wherein open slot be reset locking face, open slot facade be separating brake locking face, during breaker closing, press reset
Button drives the indicator board of indication piece, the locating surface of indication piece to move to reset from separating brake locking face with the locking face of SR
The mutual locking positioning in locking face, indicator board drives transmission sheet reset by back-moving spring；When having leakage current in circuit and reach
During electric leakage setting working value, leakage tripping device is connected to instruction makes push rod overcome the active force of back-moving spring to promote the push rod of indication piece
Power is sent to driving face, driver plate the driving contact face of release lever by release lever driving face, and then promotes release lever to exist
Slide in gathering sill, the dropout contact surface of the release lever other end promotes the lock in tripping mechanism, drive tripping mechanism action, electricity
Road disconnects, and the index plane of indication piece is transformed into separating brake instruction state, while SR is upspring.
In above-mentioned technical proposal, in the upper setting test button of power supply end housing, in normal operation of circuit breaker, examination is pressed
Button is tested, chopper reaches the path of motion after predetermined protection value, periodic detection product earth leakage protective by leakage current value is repeated
Function.
The present invention has following technique effect：Using power supply end housing and the two segments combined housing of lengthening load end housing,
It is easy to processing and Automated assembly；Unique simplicity is formed using the gathering sill on big " U " release lever and housing with gib block
Slip trip unit, good operating stability will not occur misoperation, in normal operating conditions overload short circuit and earth leakage protective
Without interference effect under state；The indication piece knot of wedge indicator board and rectangle driver plate is respectively provided with using round sleeve two ends
Structure, simple for structure, small volume, driver plate drives indicator board motion, having stable behavior, reliability by round sleeve；SR is adopted
Square latch, ingenious setting reset locking face and separating brake locking face are used, using the cooperation of locking face and the locating surface of indication piece,
Driver plate, release lever and tripping mechanism action are driven, completes to reset, compared with conventional reset simple system, reliability, job stability
It is high；Test button is set in power supply end housing, and rational in infrastructure, path of motion is short, is easy to processing and Automated assembly；Using this
Inventive technique scheme, the trip gear small volume of more traditional residual current action breaker is compact conformation, succinct, rationally, moves
Make stability height, misoperation, product high comprehensive performance will not occur, and be easy to processing and Automated assembly, more preferably meet
Industrial applications.
Description of the drawings
Fig. 1 is embodiment of the present invention trip gear structural representation.
Fig. 2 is embodiment of the present invention "on" position release lever and indication piece head-up position schematic diagram.
Fig. 3 is embodiment of the present invention "on" position release lever and indication piece rear view position schematic diagram.
Fig. 4 is embodiment of the present invention earth leakage protective gate-dividing state release lever and indication piece head-up position schematic diagram.
Fig. 5 is embodiment of the present invention earth leakage protective gate-dividing state release lever and indication piece rear view position schematic diagram.
Fig. 6 is the two-part shell structure schematic diagram in the embodiment of the present invention.
Fig. 7 is the release lever structural representation in the embodiment of the present invention.
Fig. 8 is housing and release lever position view in the embodiment of the present invention.
Fig. 9 is magnetic release and release lever position view in the embodiment of the present invention.
Figure 10 is the indication piece structural representation in the embodiment of the present invention.
Figure 11 is the reset button structure schematic diagram in the embodiment of the present invention.
1 tripping mechanism, 11 locks, 2 magnetic releases, 3 test buttons, 4 SRs, 41 button bodies, 42 lockings in figure
Block, 421 reset locking faces, 422 separating brake locking faces, 5 back-moving springs, 6 housings, 61 power supply end housing, 62 lengthen load end housing,
63 gathering sills, 7 leakage tripping devices, 8 indication pieces, 81 axle sleeves, 82 indicator boards, 8211 reset index planes, 8212 separating brake index planes,
822 locating surfaces, 83 driver plates, 831 push rod driving faces, 832 dropout driving faces, 9 release levers, 91 gib blocks, 921 driving contacts
Face, 922 dropout contact surfaces, 93 chamferings.
Specific embodiment
The trip gear of a kind of residual current action breaker provided in an embodiment of the present invention, as shown in figure 1, including housing
6th, leakage tripping device 7, release lever 9, tripping mechanism 1, magnetic release 2, indication piece 8, SR 4, back-moving spring 5 and test is pressed
Button 3 etc.；As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, wherein leakage tripping device 7 is connected to electric leakage instruction so as to which push rod overcomes back-moving spring
5 active force promotes the driver plate 83 of indication piece 8, driver plate 83 to drive release lever 9 to slide in gathering sill 63, release lever 9
The other end promotes the lock 11 of tripping mechanism 1, and so as to drive the action of tripping mechanism 1, circuit to disconnect, the index plane of indication piece 8 turns
Separating brake instruction state is changed to, while SR 4 is upspring；Periodic detection product creepage protection function during normal work, presses examination
Residual current action breaker reaches the path of motion after predetermined protection value by leakage current value is repeated when testing button 3.
In the embodiment of the present invention, as shown in fig. 6, wherein housing 6 is by power supply end housing 61 and lengthens 62 groups of end housing of load
Into, using two-part structure, be easy to processing assembling；The lower central position of two sections of inwall correspondence magnetic releases 2 respectively sets a phase
Logical waits deep bar shaped gathering sill 63, the depth 1.0mm of gathering sill 63, as the sliding groove slidably of release lever 9.
In the embodiment of the present invention, as shown in Figure 7, Figure 8 and Figure 9, wherein release lever 9 is designed in big " u "-shaped, in " u "-shaped two
End bending part respectively arranges a chamfering 93, plays a part of to strengthen intensity, and the bottom rear of release lever 9 arranges two along two sides
Gib block 91, can effectively reduce the frictional force in gathering sill 63 slidably of release lever 9, and release lever 9 slides more lightly, takes off
Button bar 9 is located at the lower section of magnetic release 2, release lever 9 and magnetic release 2 overload short circuit and leakage in the case of normal operation of circuit breaker
Without interference effect under electric protection state.
In the embodiment of the present invention, as shown in Figure 10, wherein indication piece 8 is made up of axle sleeve 81, indicator board 82 and driver plate 83,
Wherein round sleeve 81 is arranged in the fixing axle on housing 1, and axle sleeve 81 is column structure, the top of axle sleeve 81 and wedge indicator board
82 are connected, and the upper surface of indicator board 82 is arc-plane, is made up of reset index plane 8211 and separating brake index plane 8212, two instructions
There is a groove area to separate between face, wherein reset index plane 8211 indicates "on" position, separating brake index plane 8212 indicates electric leakage point
Lock state, the lower surface of indicator board 82 is a horizontal plane, is locating surface 822, under "on" position with electric leakage gate-dividing state, works as finger
Show that part 8 contacts with SR 5 and play locking positioning action, the lower section of axle sleeve 81 and a rectangle driver plate 83 are fixedly linked,
Two driving faces of the left and right sides of driver plate 83, be respectively the push rod driving face 831 that acts on the push rod of leakage tripping device 7 and
The release lever driving face 832 of the effect of release lever 9.
In the embodiment of the present invention, as shown in figure 11, wherein SR 4 is square structure, including button body 41 and lock
Stops 42 is constituted, and wherein button body 41 is a square structure, and in the body bottom is connected with a square latch 42, lock
Stops 42 is rectangular aperture slot structure, and it is separating brake lock that the upper surface of wherein open slot is the facade in reset locking face 421, open slot
Only face 422, during breaker closing, press the indicator board 82 that SR 4 drives indication piece 8, the locating surface 822 of indication piece 8 with
The locking face of SR 4 moves to the mutual locking positioning of reset locking face 421 from separating brake locking face 422, and indication piece 8 is by multiple
Position spring 5 drives driver plate 83 to reset；When having leakage current in circuit and reaching electric leakage setting working value, leakage tripping device 7
Being connected to instruction makes push rod overcome the active force of back-moving spring 5 to promote the push rod driving face 831 of indication piece 8, and driver plate 83 is by power
The driving contact face 921 of release lever 9 is sent to by release lever driving face 832, and then promotes release lever 9 sliding in gathering sill 63
Dynamic, the other end of release lever 9 is the lock 11 in the promotion tripping mechanism 1 of dropout contact surface 922, drives the action of tripping mechanism 1, circuit
Disconnect, the index plane of indication piece 8 is transformed into separating brake instruction state, while SR 5 is upspring.
In the embodiment of the present invention, test button 3 is set in power supply end housing 61, in normal operation of circuit breaker, is pressed
Test button 3, chopper will repeat leakage current value and reach the path of motion after predetermined protection value, and the electric leakage of periodic detection product is protected
Protective function.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not right
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need to be exhaustive to all of embodiment.And these
The obvious change or variation that the connotation for belonging to of the invention is extended out still falls within protection scope of the present invention.
Claims (6)
1. a kind of trip gear of residual current action breaker, including housing, leakage tripping device, release lever, tripping mechanism, magnetic
Electrical apparatus release, indication piece, SR, back-moving spring and test button etc., it is characterised in that：Wherein leakage tripping device is connected to electric leakage
Instruction so as to which push rod overcomes the active force of back-moving spring to promote the driver plate of indication piece, driver plate to drive release lever in gathering sill
Middle slip, the other end of release lever promotes the lock of tripping mechanism, so as to drive tripping mechanism action, circuit to disconnect, indication piece
Index plane be transformed into separating brake instruction state, while SR is upspring；One test button is set on housing, during normal work
Periodic detection product creepage protection function.
2. the trip gear of a kind of residual current action breaker according to claim 1, it is characterised in that：Wherein housing
It is made up of power supply end housing and lengthening load end housing, using two-part structure, is easy to processing assembling；Two sections of inwall correspondence magnetic take off
The lower central position of button device respectively set one communicate wait deep bar shaped gathering sill, groove depth 0.8mm to 1.2mm is oriented to, as de-
Button bar sliding groove slidably.
3. the trip gear of a kind of residual current action breaker according to claim 1, it is characterised in that：Wherein thread off
Bar is designed in big " u "-shaped, and at " u "-shaped two ends, bending part respectively arranges a chamfering, plays a part of to strengthen intensity, release lever bottom
The back side arranges two gib blocks along two sides, can effectively reduce release lever frictional force in gathering sill slidably, takes off
Button bar slides more lightly, and release lever is located at the lower section of magnetic release, and release lever is with magnetic release in normal operation of circuit breaker situation
Without interference effect under lower overload short circuit and earth leakage protective state.
4. the trip gear of a kind of residual current action breaker according to claim 1, it is characterised in that：Wherein indicate
Part is made up of axle sleeve, indicator board and driver plate, and wherein round sleeve is arranged in the fixing axle on housing, and axle sleeve is cylinder knot
Structure, axle sleeve top is connected with wedge indicator board, and indicator board upper surface is arc-plane, by reset index plane and separating brake index plane structure
Into, there is a groove area to separate between two index planes, wherein reset index plane indicates "on" position, and separating brake index plane indicates electric leakage
Gate-dividing state, indicator board lower surface is a horizontal plane, is locating surface, under "on" position with electric leakage gate-dividing state, works as instruction
Part contacts with SR and plays locking positioning action, and axle sleeve lower section and a rectangle driver plate are fixedly linked, and driver plate is left
Two driving faces of right both sides, are respectively the push rod driving face of push rod effect with leakage tripping device and taking off for release lever effect
Button bar driving face.
5. the trip gear of a kind of residual current action breaker according to claim 1, it is characterised in that：Wherein reset
Button is square structure, including button body and latch composition, and wherein button body is a square structure, in the body under
Portion is connected with a square latch, latch be rectangular aperture slot structure, wherein the upper surface of open slot be reset locking face,
The facade of open slot is separating brake locking face, during breaker closing, presses the indicator board that SR drives indication piece, indication piece
Locating surface moves to the mutual locking positioning in reset locking face with the locking face of SR from separating brake locking face, and indicator board is by multiple
Position spring drives driver plate to reset；When having leakage current in circuit and reaching electric leakage setting working value, leakage tripping device is connected to
Instruction makes push rod overcome the active force of back-moving spring to promote the push rod driving face of indication piece, driver plate to pass power by release lever
Dynamic face is sent to the driving contact face of release lever, and then promotes release lever to slide in gathering sill, the dropout of the release lever other end
Contact surface promotes the lock in tripping mechanism, drives tripping mechanism action, circuit to disconnect, and the index plane of indication piece is transformed into separating brake
Instruction state, while SR is upspring.
6. the trip gear of a kind of residual current action breaker according to claim 1, it is characterised in that：In power end
Test button is set on housing, in normal operation of circuit breaker, test button is pressed, chopper reaches leakage current value is repeated
Path of motion after predetermined protection value, periodic detection product creepage protection function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148025.XA CN106653499A (en) | 2017-03-13 | 2017-03-13 | Release apparatus of residual current operated circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710148025.XA CN106653499A (en) | 2017-03-13 | 2017-03-13 | Release apparatus of residual current operated circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106653499A true CN106653499A (en) | 2017-05-10 |
Family
ID=58847486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710148025.XA Pending CN106653499A (en) | 2017-03-13 | 2017-03-13 | Release apparatus of residual current operated circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN106653499A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221787A (en) * | 2017-07-21 | 2017-09-29 | 温州和赢电气科技有限公司 | A kind of earth leakage protective instruction device, leakage protecting plug and earth leakage protective socket |
| CN108565185A (en) * | 2018-06-15 | 2018-09-21 | 北京北元电器有限公司 | The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method |
| CN108648970A (en) * | 2018-07-02 | 2018-10-12 | 亚洲电力设备(深圳)股份有限公司 | A kind of tripping mechanism of breaker |
| CN109979787A (en) * | 2019-05-13 | 2019-07-05 | 浙江友路电气有限公司 | A kind of leakage circuit breakers instruction device and leakage circuit breakers |
| CN110137042A (en) * | 2019-05-29 | 2019-08-16 | 厦门士林电机有限公司 | A kind of miniature circuit breaker with opening and closing with escape display function |
| CN110600347A (en) * | 2019-09-25 | 2019-12-20 | 温州奥来电器有限公司 | 2P electric leakage circuit breaker |
| CN113380590A (en) * | 2021-07-01 | 2021-09-10 | 上海长城开关厂有限公司 | Small shell frame leakage reclosing switch |
| CN114005710A (en) * | 2020-07-28 | 2022-02-01 | 西门子股份公司 | Electric leakage fault indication mechanism of circuit breaker and circuit breaker |
| CN117393387A (en) * | 2023-10-20 | 2024-01-12 | 浙江卓瑞微智能制造有限公司 | Household intelligent circuit breaking protection device |
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| CN107221787A (en) * | 2017-07-21 | 2017-09-29 | 温州和赢电气科技有限公司 | A kind of earth leakage protective instruction device, leakage protecting plug and earth leakage protective socket |
| CN107221787B (en) * | 2017-07-21 | 2023-05-09 | 温州好惠电子电器制造有限公司 | Leakage protection indicating device, leakage protection plug and leakage protection socket |
| CN108565185A (en) * | 2018-06-15 | 2018-09-21 | 北京北元电器有限公司 | The electric leakage instruction protection mechanism of leakage circuit breakers and electric leakage instruction guard method |
| CN108565185B (en) * | 2018-06-15 | 2023-09-22 | 北京北元电器有限公司 | Leakage indication protection mechanism and leakage indication protection method of leakage circuit breaker |
| CN108648970A (en) * | 2018-07-02 | 2018-10-12 | 亚洲电力设备(深圳)股份有限公司 | A kind of tripping mechanism of breaker |
| CN108648970B (en) * | 2018-07-02 | 2024-04-26 | 亚洲电力设备(深圳)有限公司 | Tripping mechanism of circuit breaker |
| CN109979787B (en) * | 2019-05-13 | 2023-12-12 | 浙江友路电气有限公司 | Electric leakage breaker indicating device and electric leakage breaker |
| CN109979787A (en) * | 2019-05-13 | 2019-07-05 | 浙江友路电气有限公司 | A kind of leakage circuit breakers instruction device and leakage circuit breakers |
| CN110137042A (en) * | 2019-05-29 | 2019-08-16 | 厦门士林电机有限公司 | A kind of miniature circuit breaker with opening and closing with escape display function |
| CN110137042B (en) * | 2019-05-29 | 2024-03-19 | 厦门士林电机有限公司 | Miniature circuit breaker with opening, closing and tripping display functions |
| CN110600347A (en) * | 2019-09-25 | 2019-12-20 | 温州奥来电器有限公司 | 2P electric leakage circuit breaker |
| WO2022023354A1 (en) * | 2020-07-28 | 2022-02-03 | Siemens Aktiengesellschaft | Residual current fault indicator mechanism and circuit breaker with residual current fault indicator mechanism |
| CN114005710A (en) * | 2020-07-28 | 2022-02-01 | 西门子股份公司 | Electric leakage fault indication mechanism of circuit breaker and circuit breaker |
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Address after: 325604 Fangdouyan Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Xinchi Electric Group Co., Ltd. Address before: 325604 Fangdouyan Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province Applicant before: SUNTREE ELECTRIC CO., LTD. |
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