CN110473750A - A kind of improvement contact system of low-voltage circuit breaker - Google Patents
A kind of improvement contact system of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN110473750A CN110473750A CN201810449202.2A CN201810449202A CN110473750A CN 110473750 A CN110473750 A CN 110473750A CN 201810449202 A CN201810449202 A CN 201810449202A CN 110473750 A CN110473750 A CN 110473750A
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- Prior art keywords
- contact
- dynamic
- busbar
- bracket
- contact system
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Links
- 230000006872 improvement Effects 0.000 title claims abstract description 28
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052709 silver Inorganic materials 0.000 claims abstract description 32
- 239000004332 silver Substances 0.000 claims abstract description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective 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
- H01H73/02—Details
- H01H73/04—Contacts
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The present invention relates to a kind of improvement contact systems of low-voltage circuit breaker, including contact frame, contact blade, dynamic busbar, flexible connection, contact blade, bracket, and dynamic silver point, wherein, it is connect by first rotating shaft with contact frame member in the middle part of contact blade, the both ends of flexible connection are separately connected the lower end of contact blade and the upper datum level on dynamic busbar top, and the lower end of the contact frame and bracket are rotatablely connected by the second shaft, and second shaft is 0-5mm at a distance from datum level on dynamic busbar.Compared with prior art, the present invention is not under the premise of changing the distance of the center of rotation of contact system in breaker and contact system center of rotation to contact blade center of rotation, it is improved by the position geomery to datum level, bracket and pedestal on dynamic busbar etc., increase space when flexible connection rotation, reduce obstruction when causing contact system to rotate due to increasing flexible connection current-carrying cross section, it reduces the heavy burdens for operating mechanism, increases the reliability of circuit breaker operation mechanism.
Description
Technical field
The invention belongs to low-voltage circuit breaker technical fields, are related to a kind of improvement contact system of low-voltage circuit breaker.
Background technique
The contact system of breaker is responsible for normal ON, disjunction and the challenge for connecting short circuit current, therefore set
The contact system of meter should have enough dynamic thermal stabilities, resistance fusion welding, wear-resisting and temperature rise requirement.With the market demand,
The performance indicator of omnipotent breaker of today is higher and higher, and frame size is increasing, therefore contact system is in disjunction, connection
When so big short circuit current, very big electrodynamic repulsion force is generated since the extreme of current line is shunk between dynamic/static contact.In order to
It realizes the reliable disjunction of breaker, connect the requirement of short circuit current and temperature rise, need sufficiently large contact pressure.
Power needed for the disjunction and connection of contact system is driven by the operating mechanism of breaker, so increasing touching
Head pressure means that operating mechanism needs to export bigger torque to drive contact system.Bring consequence can exactly reduce in this way
The mechanical life of the reliability of breaker, operating mechanism can be reduced, and not can guarantee the permanent reliable divide-shut brake of breaker.
In addition, shown in Figure 3, Uniting in industry is usually used in existing contact system comprising contact frame
Frame 13, contact blade 2, dynamic busbar 8, flexible connection 7, contact blade 2, bracket 9 and dynamic silver point 3, wherein by the in the middle part of contact blade 2
One shaft 6 is rotatably installed on contact frame 13, and dynamic busbar 8 fits together with bracket 9, and the both ends of flexible connection 7 are respectively welded
The upper top surface (i.e. upper datum level) of the lower end of contact blade 2 and dynamic busbar 8, the lower end of contact frame 13 and bracket 9 pass through second turn
The connection of 10 shaft of axis, the distance of upper top surface of second shaft 10 apart from dynamic busbar 8 is about 10-15mm.With performance indicator
Increase and the raising of frame size, the current-carrying cross section of flexible connection also increases with it in contact system, is bound to cause contact system
Crowded because of the increase of flexible connection sectional area in former space, the flexible rotating of contact system, gives when hindering disjunction and closing a floodgate
The bigger burden of the operating mechanism power output increase natively limited to, and influence reliability.
Existing technology is to increase the length of flexible connection in original setting space come when reducing contact system rotation in industry
Obstruction, such improvement can not solve the problems, such as in fact, and it is more crowded in contact system rotation to will lead to flexible connection instead,
Increase resistance when rotation.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of low-voltage circuit breakers
Contact system is improved, space structure locating for contact system is improved while increasing flexible connection length, when increasing flexible connection rotation
Space solve the problems, such as.
The purpose of the present invention can be achieved through the following technical solutions:
It is an object of the present invention to propose a kind of improvement contact system of low-voltage circuit breaker, including contact frame, touching
Head piece, dynamic busbar, flexible connection, contact blade, bracket and dynamic silver point, wherein pass through first rotating shaft and contact frame in the middle part of contact blade
Frame rotation connection, the both ends of flexible connection are separately connected the lower end of contact blade and the upper datum level on dynamic busbar top, the contact frame
The lower end of frame and bracket are rotatablely connected by the second shaft, and second shaft is 0-5mm at a distance from datum level on dynamic busbar.
In a preferred embodiment, the section of the bracket is stepped comprising bracket kerve, Yi Jishe
The side panel of bracket kerve two sides is set, moves busbar, the inside of the side panel in the bracket kerve described in Matching installation
Side wall and the contact frame are rotatablely connected by the second shaft.On the one hand the setting of such structure improves dynamic busbar and bracket
Fitting effect, meanwhile, be also not susceptible to dynamic busbar installation to the interference problem of contact system center of rotation.In addition, bracket
Outside is similarly arranged into a ladder, in this way, the clamping that can be convenient bracket and pedestal is installed.
In a preferred embodiment, the material of the flexible connection is red copper.
The second object of the present invention is to propose a kind of low-voltage circuit breaker, including mechanism main shaft, connecting rod, as described in purpose one
Improvement contact system, quiet busbar, quiet silver point, and the installation pedestal for improving contact system, the mechanism main shaft be logical
It crosses connecting rod and connects the improvement contact system, and improvement contact system is driven to contact or disengage with quiet busbar and quiet silver point.
In a preferred embodiment, the dynamic silver point is arranged on contact blade, and dynamic silver point is on contact blade
Position meet: when contact system closes a floodgate, contact blade first touches quiet busbar, so that moving silver point just after contact blade backwards rotation
The quiet silver point is touched, such setting can effectively improve the divide-shut brake performance of low-voltage circuit breaker.
The third object of the present invention, which also resides in, proposes a kind of improved method of the contact system of low-voltage circuit breaker, described
Contact system includes that contact frame, contact blade, the dynamic silver point being arranged on contact blade, dynamic busbar, both ends are separately connected contact blade
The flexible connection of the upper datum level of lower end and dynamic busbar top, the bracket of the fitting dynamic busbar and by described in card slot fixation
The pedestal of bracket, the middle part of the contact blade also passes through first rotating shaft and is rotatablely connected the contact frame, and forms contact blade
Center of rotation, the lower end of the contact frame and bracket are rotatablely connected by the second shaft, and form contact system center of rotation,
The improved method are as follows:
Keep constant dynamic busbar thickness and contact system center of rotation and contact blade center of rotation apart from constant, lower movement mother
The upper datum level of row, meanwhile, the geomery for adjusting bracket and pedestal keeps contact system center of rotation in low-voltage circuit breaker
Position is constant.
Preferably, the variation for being adjusted to adapt to dynamic busbar of the shape and mounting structure of bracket and pedestal also correspondence.
In the center of rotation (i.e. axis where the second shaft) of contact system and contact system rotate in breaker
The distance of the heart to contact blade center of rotation (i.e. axis where first rotating shaft) is true by Theoretical Design and abundant experimental results
Fixed, it affects two most important parameters of breaker --- open away from and the excess of stroke.Slightly change just and will affect entire open circuit
Therefore the performance indicator of device is not changing in breaker the center of rotation of contact system and contact system center of rotation to touching
Under the premise of the distance of head piece center of rotation, the present invention solves to gather around due to flexible connection by improving dynamic busbar etc.
The resistance being subject in contact system rotation process caused by squeezing.Specific setting method are as follows: by turn of the second shaft and dynamic busbar
Dynamic link position is moved to dynamic busbar upper end, in this way, guaranteeing contact system center of rotation and contact blade center of rotation distance not
While change, the space of flexible connection can be increased, in addition, by above-mentioned design, due to compared to conventional contact system, flexible connection
It is opposite with the upper datum level of dynamic busbar connection to move down, therefore, in order to guarantee that contact system center of rotation is constant, move busbar thickness
It remaining unchanged (generally 20mm), bracket is then servo-actuated busbar reference line and moves down together, and in order to avoid causing excessive change to pedestal
Dynamic, bracket is arranged into a ladder, and its lower end thickness adaptability is reduced, in addition, the card slot depth on support bracket fastened pedestal
Also it translates down, in this way, on the basis of above-mentioned various improvement, then can effectively amplify on dynamic busbar datum level to contact blade
Space between center of rotation, so can effectively reduce due to flexible connection it is crowded caused by contact system rotation process in
The resistance being subject to.
Compared with prior art, the present invention is not changing the center of rotation of contact system and contact system turn in breaker
Dynamic center to contact blade center of rotation distance under the premise of, it is soft in the structure increase contact system by improving contact system
The rotation space of knot, can effectively reduce due to flexible connection it is crowded caused by contact system rotation process in the resistance that is subject to
Power reduces the burden of circuit breaker operation mechanism, improves the mechanical life of breaker and the reliability of divide-shut brake.In addition, comparing
For existing contact system, transformation difficulty of the invention is relatively small, can be adapted for existing contact system and low pressure
Breaker is transformed, and effectively reduces production difficulty and production cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of circuit breaker open position of the invention；
Fig. 2 is the schematic diagram of breaker closing position of the invention；
Fig. 3 is the schematic diagram for improving the contact system of front and back, wherein left-half is improvement contact system of the invention,
Right half part is existing contact system；
Fig. 4 is the schematic top plan view for improving front and back contact system, wherein left-half is improvement contact system of the invention
System, right half part are existing contact system；
Fig. 5 is the schematic top plan view of contact system before and after the improvement with pedestal, wherein left-half is of the invention changes
Into contact system, right half part is existing contact system；
Fig. 6 is the schematic diagram of card slot on pedestal, wherein left-half is improvement contact system of the invention, right half part
For existing contact system；
Fig. 7 is the schematic side view for improving front and back contact system,
Fig. 8 is the schematic diagram of improved bracket of the invention；
Description of symbols in figure:
1- mechanism main shaft, 2- contact blade, 3- move silver point, the quiet busbar of 4-, the quiet silver point of 5-, 6- first rotating shaft, 7- flexible connection, 8-
Dynamic busbar, 9- bracket, 91- bracket kerve, 92- side panel, 9`- improve fore-stock, the second shaft of 10-, and 11- improves contact system
System, 12- connecting rod, 13- contact frame, 14- pedestal, the upper datum level of 15-, above datum level, 16- card slot, 16`- change before 15`- is improved
Into front bayonet slot.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to
Following embodiments.
It is of the invention to propose a kind of improvement contact system of low-voltage circuit breaker including contact frame 13, contact blade 2, dynamic
Busbar 8, flexible connection 7, contact blade 2, bracket 9 and dynamic silver point 3, wherein pass through first rotating shaft 6 and contact frame in the middle part of contact blade 2
Frame 13 is rotatablely connected, and the both ends of flexible connection 7 are separately connected the lower end of contact blade 2 and the datum level on dynamic 8 top of busbar, the contact
The lower end of frame 13 and bracket 9 are rotatablely connected by the second shaft 10, second shaft 10 and datum level 15 on dynamic busbar 8
Distance is 0-5mm.
In a preferred embodiment of the invention, the section of the bracket 9 is stepped comprising bracket bottom
Slot 91, and the side panel 92 of 91 two sides of bracket kerve is set, busbar is moved in the bracket kerve 91 described in Matching installation
8, the inside side walls of the side panel 92 and the contact frame 13 are rotatablely connected by the second shaft 9, shown in Figure 8.
In a preferred embodiment of the invention, the material of the flexible connection 7 is red copper.
Of the invention also proposed a kind of low-voltage circuit breaker, including mechanism main shaft 1, connecting rod 12, improvement touching as described above
Head system, quiet busbar 4, quiet silver point 5, and the installation pedestal 1414 for improving contact system, the mechanism main shaft 1 pass through
Connecting rod 12 connects the improvement contact system, and improvement contact system is driven to contact or disengage with quiet busbar 4 and quiet silver point 5.
In a preferred embodiment, the dynamic silver point 3 is arranged on contact blade 2, and dynamic silver point 3 is in contact blade
Position on 2 meets: closing a floodgate when improving contact system, contact blade 2 first touches quiet busbar 4, so that 2 backwards rotation of contact blade
Afterwards, it moves silver point 3 and just touches the quiet silver point 5.
A kind of improved method of the contact system that also proposed low-voltage circuit breaker of the invention, the contact system include
Contact frame 13, contact blade 2, the dynamic silver point 3 being arranged on contact blade 2, dynamic busbar 8, both ends be separately connected 2 lower end of contact blade and
Move the flexible connection 7 of the upper datum level 15 on 8 top of busbar, the bracket 9 of the fitting dynamic busbar 8 and by the fixed institute of card slot 16
The pedestal 14 of bracket 9 is stated, the middle part of the contact blade 2 also passes through first rotating shaft 6 and is rotatablely connected the contact frame 13, and shape
At 2 center of rotation of contact blade, the lower end of the contact frame 13 and bracket 9 are rotatablely connected by the second shaft 10, and form touching
Head system center of rotation, the improved method are as follows:
Keep dynamic 8 thickness of busbar constant and contact system center of rotation with 2 center of rotation of contact blade apart from constant, lower movement
The upper datum level 15 of busbar 8, meanwhile, the geomery for adjusting bracket 9 and pedestal 14 keeps contact system center of rotation in low pressure
Position is constant in breaker.
In a preferred embodiment, the adjustment of the shape of bracket 9 and pedestal 14 and mounting structure also correspondence
For the variation for adapting to dynamic busbar.
Embodiment 1
A kind of low-voltage circuit breaker, referring to figure 1 and figure 2, rotation passes through company to operating mechanism main shaft 1 counterclockwise when closing a floodgate
Bar 12 drives improvement contact system 11 to rotate clockwise around the second shaft 10 and touches until improving 11 upper contact head piece 2 of contact system
Quiet busbar 4, at this time since impact force causes contact blade 2 to rotate counterclockwise around axis 6, then dynamic silver point 3 touches quiet silver point 5, machine
Structure double leval jib, which crosses self-locking rear close a floodgate in dead point, to be terminated.
When separating brake, operating mechanism main shaft 1, which rotates clockwise to drive by connecting rod 12, improves contact system 11 around the second shaft
10 rotations counterclockwise improve dynamic silver point 3 on contact system 11 and start to disengage with quiet silver point 5, and subsequent contact blade 2 connects with quiet busbar 4
Touching, last contact blade 2 is disengaged with quiet busbar 4 to be terminated until improvement contact system 11 returns to open position.During the opening process, one
As in conventional low-voltage circuit breaker, the space of flexible connection 7 can be reduced with the space length that rotate counterclockwise of contact system, in turn
So that flexible connection is crowded together, when closing a floodgate again flexible connection 7 due to it is crowded together, needs when contact system rotates counterclockwise
Overcome the frictional resistance between flexible connection 7 itself.And the sky of flexible connection 7 can be then effectively increased using contact system 11 is improved
Between, and then reduce above-mentioned frictional resistance.
The design for improving contact system may refer to shown in Fig. 3-7, wherein in each figure, left-half, which represents, improves contact
The structural schematic diagram of system, right half part represent the schematic diagram of existing contact system.Existing contact system is compared, it is recognised that
The present embodiment is not in changing in breaker contact system center of rotation and contact system center of rotation to contact blade and rotating
Under the premise of the distance of the heart, this patent is solved by improving the shape and structure of bracket 9, dynamic busbar 8 and pedestal 14 due to soft
It is coupled the resistance being subject in 7 crowded caused contact system rotation processes.
Specific selectable design parameter are as follows: in the case where not changing 8 thickness 20mm of rotation center and dynamic busbar, phase
Than datum level 15` upper before improving, contact system center of rotation is disposed in the position at the top of dynamic busbar 8, in this way
Dynamic busbar 8 is moved down 10mm with the upper datum level 15 that flexible connection 7 welds, and since bracket 9 and dynamic busbar 8 are to fit together
, therefore in order to adapt to above-mentioned change, compared to improvement fore-stock 9` and front bayonet slot 16` is improved, the card slot 16 on bracket 9 and support
It is also required to the adjustment of the progress position dimension and structure of correspondence.
In this way, can be by the sky between the upper datum level 15 and contact blade center of rotation of dynamic busbar 8 by above-mentioned change
Between amplify, and then reduce due to flexible connection 7 it is crowded caused by contact system rotation process in the resistance that is subject to.
Specifically in actual use, compared to existing low-voltage circuit breaker, using the improvement contact system of the present embodiment
The low-voltage circuit breaker of system both can satisfy breaker demand in use, meanwhile, the resistance of divide-shut brake is substantially reduced, operation
It is more flexible.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (7)
1. a kind of improvement contact system of low-voltage circuit breaker, including contact frame (13), contact blade (2), dynamic busbar (8), soft
Tie (7), contact blade (2), bracket (9) and dynamic silver point (3), wherein pass through first rotating shaft (6) and contact in the middle part of contact blade (2)
Frame (13) rotation connection, the both ends of flexible connection (7) are separately connected the lower end of contact blade (2) and the upper base on dynamic busbar (8) top
Quasi- face (15), the lower end and bracket (9) of the contact frame (13) are rotatablely connected by the second shaft (10), which is characterized in that
Second shaft (10) is 0-5mm at a distance from datum level (15) on dynamic busbar (8).
2. a kind of improvement contact system of low-voltage circuit breaker according to claim 1, which is characterized in that the bracket
(9) section is stepped comprising bracket kerve (91), and the side panel on the outside of the bracket kerve (91) is respectively set
(92), busbar (8) are moved described in the interior Matching installation of the bracket kerve (91), the inside side walls and the touching of the side panel (92)
Head frame (13) is rotatablely connected by the second shaft (9).
3. a kind of improvement contact system of low-voltage circuit breaker according to claim 1, which is characterized in that the flexible connection
(7) material is red copper.
4. a kind of low-voltage circuit breaker, including mechanism main shaft (1), connecting rod (12), improve as described in claim 1 contact system,
Quiet busbar (4), quiet silver point (5), and the installation pedestal (14) for improving contact system, the mechanism main shaft (1) pass through
Connecting rod (12) connects the improvement contact system, and improvement contact system is driven to contact or take off with quiet busbar (4) and quiet silver point (5)
It opens.
5. a kind of low-voltage circuit breaker according to claim 5, which is characterized in that the dynamic silver point (3) is arranged in contact
On piece (2), and the position of dynamic silver point (3) on contact blade (2) meets: closing a floodgate when improving contact system, contact blade (2) is first touched
To quiet busbar (4), so that dynamic silver point (3) just touch the quiet silver point (5) after contact blade (2) backwards rotation.
6. a kind of low-voltage circuit breaker according to claim 5, which is characterized in that the pedestal (14) is equipped with for card
The card slot (16) of the bracket (9) is connect, and the second shaft (10) and pedestal (14) baseplane distance is made to remain 47mm.
7. a kind of improved method of the contact system of low-voltage circuit breaker, the contact system includes contact frame (13), contact
Piece (2), the dynamic silver point (3) being arranged on contact blade (2), dynamic busbar (8), both ends are separately connected contact blade (2) lower end and dynamic mother
It arranges the flexible connection (7) of the upper datum level (15) on (8) top, the bracket (9) of the fitting dynamic busbar (8) and passes through card slot
(16) pedestal (14) of the fixed bracket (9), the middle part of the contact blade (2) also pass through first rotating shaft (6) rotation connection
The contact frame (13), and contact blade (2) center of rotation is formed, the bottom end of the contact frame (13) also passes through second turn
Axis (10) is rotatablely connected the bracket (9), and forms contact system center of rotation, which is characterized in that the improved method are as follows:
Keep dynamic busbar (8) thickness constant and contact system center of rotation with contact blade (2) center of rotation apart from constant, lower movement
The upper datum level (15) of busbar (8), meanwhile, the geomery for adjusting bracket (9) and pedestal (14) is kept in contact system rotation
Heart position in low-voltage circuit breaker is constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449202.2A CN110473750B (en) | 2018-05-11 | 2018-05-11 | Improved contact system of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449202.2A CN110473750B (en) | 2018-05-11 | 2018-05-11 | Improved contact system of low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110473750A true CN110473750A (en) | 2019-11-19 |
| CN110473750B CN110473750B (en) | 2024-05-14 |
Family
ID=68504254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810449202.2A Active CN110473750B (en) | 2018-05-11 | 2018-05-11 | Improved contact system of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
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| CN (1) | CN110473750B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003041106A1 (en) * | 2001-11-06 | 2003-05-15 | Abb Service S.R.L. | Low-voltage circuit breaker |
| CN101030500A (en) * | 2007-01-08 | 2007-09-05 | 常州市德春电器有限公司 | Vacuum loading switch |
| US20080087531A1 (en) * | 2006-10-13 | 2008-04-17 | Eaton Corporation | Electrical switch, conductor assembly, and independent flexible conductive elements therefor |
| CN101165832A (en) * | 2006-10-17 | 2008-04-23 | Ls产电株式会社 | Movable contact assembly for circuit breaker |
| CN101409175A (en) * | 2008-01-14 | 2009-04-15 | 北京维益埃电气有限公司 | Combined high-voltage load switch and high-voltage switchgear thereof |
| CN202167782U (en) * | 2011-07-27 | 2012-03-14 | 临安市供电局 | Intelligent medium voltage switch cabinet |
| CN202816838U (en) * | 2012-07-31 | 2013-03-20 | 上海电科电器科技有限公司 | Movable contact of low-voltage circuit breaker |
| CN204303726U (en) * | 2014-12-25 | 2015-04-29 | 常熟开关制造有限公司(原常熟开关厂） | A kind of moving contact and comprise the circuit breaker of this moving contact |
| CN105529229A (en) * | 2015-12-30 | 2016-04-27 | 陕西科技大学 | Contact support structure for air circuit breaker contact system |
| CN205828331U (en) * | 2016-06-30 | 2016-12-21 | 洋利电气（杭州）有限公司 | Omnipotent breaker |
| CN208706563U (en) * | 2018-05-11 | 2019-04-05 | 上海电器股份有限公司人民电器厂 | A kind of the improvement contact system and low-voltage circuit breaker of low-voltage circuit breaker |
-
2018
- 2018-05-11 CN CN201810449202.2A patent/CN110473750B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003041106A1 (en) * | 2001-11-06 | 2003-05-15 | Abb Service S.R.L. | Low-voltage circuit breaker |
| US20080087531A1 (en) * | 2006-10-13 | 2008-04-17 | Eaton Corporation | Electrical switch, conductor assembly, and independent flexible conductive elements therefor |
| CN101165832A (en) * | 2006-10-17 | 2008-04-23 | Ls产电株式会社 | Movable contact assembly for circuit breaker |
| CN101030500A (en) * | 2007-01-08 | 2007-09-05 | 常州市德春电器有限公司 | Vacuum loading switch |
| CN101409175A (en) * | 2008-01-14 | 2009-04-15 | 北京维益埃电气有限公司 | Combined high-voltage load switch and high-voltage switchgear thereof |
| CN202167782U (en) * | 2011-07-27 | 2012-03-14 | 临安市供电局 | Intelligent medium voltage switch cabinet |
| CN202816838U (en) * | 2012-07-31 | 2013-03-20 | 上海电科电器科技有限公司 | Movable contact of low-voltage circuit breaker |
| CN204303726U (en) * | 2014-12-25 | 2015-04-29 | 常熟开关制造有限公司(原常熟开关厂） | A kind of moving contact and comprise the circuit breaker of this moving contact |
| CN105529229A (en) * | 2015-12-30 | 2016-04-27 | 陕西科技大学 | Contact support structure for air circuit breaker contact system |
| CN205828331U (en) * | 2016-06-30 | 2016-12-21 | 洋利电气（杭州）有限公司 | Omnipotent breaker |
| CN208706563U (en) * | 2018-05-11 | 2019-04-05 | 上海电器股份有限公司人民电器厂 | A kind of the improvement contact system and low-voltage circuit breaker of low-voltage circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110473750B (en) | 2024-05-14 |
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