CN101656179A - Co-directional serial double-break small circuit breaker - Google Patents
Co-directional serial double-break small circuit breaker Download PDFInfo
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- CN101656179A CN101656179A CN200810147486A CN200810147486A CN101656179A CN 101656179 A CN101656179 A CN 101656179A CN 200810147486 A CN200810147486 A CN 200810147486A CN 200810147486 A CN200810147486 A CN 200810147486A CN 101656179 A CN101656179 A CN 101656179A
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Abstract
The invention discloses a small molded case circuit breaker adopting co-directional serial double breakpoints, which comprises an operating mechanism, a contact device, an energy storage device, and acaging device. The energy storage device comprises a contact surface formed on a supporting part, a driving finger which is matched with the contact surface and co-directionally moves along with a handle of the operating mechanism, and an energy storage spring connected between a lever of the operating mechanism and a moving contact. The caging device comprises two bosses corresponding to two moving contact points of the moving contact respectively, and two surfaces which are formed on the lever of the operating mechanism and are matched with the two bosses respectively, and has the functionsof strengthening the uniformity of contact pressure of two breakpoints and the synchronous closing/breaking adaptability, so that the caging device can still keep reliable work under the condition ofinconsistent wear of contacts of the two breakpoints. The energy storage device and the caging device are non-independent devices, so a mechanism is greatly simplified, the space of the mechanism isreduced, the external dimension of a circuit breaker product fully meets the modular standard requirement and the volume is smarter.
Description
Technical field
The present invention relates to a kind of series connection double break point miniature circuit breaker, particularly a kind of co-directional serial double-break small circuit breaker.
Background technology
Miniature circuit breaker is that its inner critical piece is operating mechanism and contact apparatus at industry and civil area low pressure terminal appliance of extensive use all, by disposing corresponding time-delay, instantaneous mechanism, realization deciliter circuit, overload, short-circuit protection function.All utilize short circuit current to produce electrodynamic repulsion force at the place, contact of dynamic and static contact on breaking technology, with arcing in advance before not moving in instantaneous mechanism, the arc resistance that relies on electric arc to form reaches the purpose of current limliting.
The contact apparatus of existing miniature circuit breaker mostly is the single-break form greatly, promptly has only a moving contact and a fixed contact on the main circuit of the same utmost point.The major defect of single-break contact device is that burning with the degree of wear of contact is very serious, thereby causes the single-break miniature circuit breaker very limited in the lifting of breaking capacity along with the improving constantly of breaking current.
The contact apparatus of existing miniature circuit breaker also has the double break point form in parallel of employing, two fixed contacts and two moving contacts is promptly arranged on the main circuit of the same utmost point, and be connected in parallel between two moving contacts, also is connected in parallel between two fixed contacts.The advantage of double-break contact device in parallel is by increasing the number of times that resistance to wears (double break point in parallel is the wear-resistant twice of single-break in theory) of contact, thereby improve the circuit breaker product and repeatedly divide the useful life of having no progeny, but it is limited that it does not still overcome breaking capacity, perhaps because the defective that the volume that the increase of breakpoint quantity brings increases.
The patent No. is that the European patent of EP0560697 discloses a kind of series connection double-break contact device of using on breaker of plastic casing, be characterized on the main circuit of the same utmost point, having two moving contacts and two fixed contacts, and two fixed contacts are connected with input, the output of main circuit respectively, and two moving contacts are connected in series.The remarkable advantage of series connection double-break contact device is because two pairs of dynamic/static contacts are born breaking current jointly,, to say in theory that its breaking capacity is the twice of single-break contact device so breaking capacity improves greatly.Two contacts of the moving contact of EP0560697 patent are separately positioned on the both sides of contact supporting axis, so be referred to as symmetrical expression series connection double break point.Symmetrical expression series connection double-break contact device is applicable to the bigger breaker of plastic casing of volume, and its symmetrical structure and bulky characteristics can not directly be adopted symmetrical expression series connection double-break contact device by miniature circuit breaker institute.The outstanding request of miniature circuit breaker is that volume is little, overall dimensions are touched numberization, operating physical force is light, and existing symmetrical expression series connection double-break contact device obviously can not satisfy these specific (special) requirements.
The patent No. is that the patent of invention of ZL01821361 discloses a kind of co-directional serial double-break contact apparatus, and its design feature is the homonymy that the double break point of two contacts formation of two moving contacts is separately positioned on the contact supporting axis, and two contact direction of motion unanimities.The co-directional serial double-break of this technical scheme is littler than symmetrical expression series connection double break point on transverse width, so it also makes the application of series connection double-break contact device on miniature circuit breaker become possibility.Yet, the series connection double-break contact device is applied on the miniature circuit breaker, also need to solve well the consistency of the closure/disjunction of two breakpoints.In closing course, if two breakpoints closed inconsistent of series connection double break point, the closed breakpoint that then lags behind is because the effect of electrodynamic repulsion force, can bounce contacting moment, thus the wearing and tearing of acceleration contact.In breaking course, if the disjunction of two breakpoints of series connection double break point is inconsistent, the breakpoint of the disjunction that then lags behind also can quicken the wearing and tearing of contact because of reasons such as electric arc burn seriously.Obviously, the breakpoint of hysteresis closure/disjunction can quicken the wearing and tearing of contact, and the wearing and tearing of contact can aggravate the hysteresis of breakpoint closure/disjunction, thereby has formed the cause and effect vicious circle.Wear and tear both the cause and effect vicious circle of series connection closure/disjunction hysteresis of double break point and contact, had a strong impact on useful life, the reliability and stability of series connection double break point miniature circuit breaker product, this also is that the series connection double break contact still can not be widely used in one of reason of miniature circuit breaker.
The conforming technical scheme of the closure/disjunction of two breakpoints of the breaker of plastic casing of prior art and miniature circuit breaker solution series connection double break point adopts energy storage device and stopping means to realize mostly.Energy storage device is used to solve double break and puts closed conforming problem, and its principle is to realize the quick-make of double break point by the energy storage of mechanism before closed, and obviously, it is to reach the time difference that shortens two asynchronous closures of breakpoint by improving closing speed.Stopping means also is used to solve the conforming problem of double break point disjunction, and its principle is disjunction when realizing double break point by the position limiting structure that is provided with in the mechanism, but it can not solve the problem of the hysteresis disjunction of the more breakpoint of occurring wear in use.For being applied to miniature circuit breaker, also there are following defective in the energy storage device of prior art and stopping means: energy storage device and stopping means structurally, be independently on the function, its complex structure, take up space greatly, can not satisfy that the miniature circuit breaker volume is little, the requirement of the high size modularization of length and width; Can not separate decision point closure/disjunction hysteresis and the contact problem of both vicious circles of wearing and tearing, so under contact weares and teares inconsistent situation, can not keep the circuit breaker reliably working.
The modularization of the overall dimensions of miniature circuit breaker is the basis based on all products of whole terminal electrical equipment, is crucial performance index.The low-voltage electrical apparatus that the terminal appliance of non-modularization or overall dimensions are excessive is because it has increased valuable installing space and use design difficulty, so its purposes is greatly limited.Yet, because the summation of the contact contact pressure of co-directional serial double-break is the twice of single-break, also need set up energy storage device and stopping means in addition, so the numberization code requirement is touched in minimizing and meeting of realization overall dimension, is to manufacture and design a great problem of still needing in the co-directional serial double-break small circuit breaker and capturing.Excessive height dimension as the S500 product of ABB makes that not only the volume of product is excessive, but also can not satisfy the basic demand of modularization.The LH-125 product of and for example golden clock Mu Le, though can meet the modularization requirement, excessive length dimension makes that not only small product size is excessive, and makes length out of proportion, thereby influences the attractive in appearance of product and use.
Summary of the invention
The objective of the invention is to overcome the defective of above-mentioned prior art, a kind of co-directional serial double-break small circuit breaker is provided, not only the contact contact pressure evenly, when closure/disjunction, have self adaptive, wearing and tearing at contact still guarantees reliably working when inconsistent, and simple and reasonable, length eurythmy, volume is little, product is attractive in appearance.
To achieve these goals, the present invention has adopted following technical scheme.
A kind of co-directional serial double-break small circuit breaker, comprise the operating mechanism in the insulation crust, the co-directional serial double-break contact apparatus, play the energy storage device and the stopping means that plays synchronizing close/disconnection effect of quick-make effect, described co-directional serial double-break contact apparatus comprises having two moving contact (A1 that realize being connected in series in circuit, A2) moving contact 4, the strutting piece 5 of fixedlying connected with moving contact 4, be fixed in the shell 1 with two moving contact (A1, A2) two of corresponding closure/disjunction fixed contact (B1, B2), with a jockey 12, moving contact 4 is used for being connected, so that can be realized closure/disjunction campaign in certain zone with described operating mechanism 3 pivots.Described energy storage device comprises that the contact-making surface 9 that is formed on the described strutting piece 5, the handle 2 homodromous drivings with operating mechanism 3 that match with contact-making surface 9 refer to 13, are connected in the lever 6 of operating mechanism 3 and the energy-stored spring 8 between the moving contact 4.Described stopping means comprise be formed on strutting piece 5 or the moving contact 4 respectively with moving contact 4 on two moving contact A1, A2 corresponding two boss C1, C2, be formed on two face D1, D2 matching with two boss C1, C2 respectively on the lever 6 of operating mechanism 3.
Described jockey 12 comprise the through hole that is formed on the strutting piece 5 and with the lever that is installed in operating mechanism 36 that this via clearance cooperates on rotating shaft 7, by described matched in clearance, make the strutting piece 5 can not only be around the axial rotation of rotating shaft 7, and can also be around the radial deflection of rotating shaft 7, with the uniformity of the contact pressure that strengthens two breakpoints and the adaptivity of synchronizing close/disjunction, wearing and tearing with the contact at two breakpoints still can keep reliably working under the inconsistent situation.
Described moving contact 4 is the fork-shaped conductor structure, and two moving contact A1, A2 are respectively formed at the end of two forks.Described two fixed contact B1, B2 are connected with input binding post, the output binding post of main circuit respectively.
The lever 6 of operating mechanism 3 is made by insulating material, and described lever 6 is provided with perforation 11, is used to install the rotating shaft 7 of described jockey 12.
Described energy-stored spring 8 is for being sleeved on the torsion spring on the described rotating shaft 7, and an end of this torsion spring is connected on the lever 6 of operating mechanism 3, and the other end is connected on the moving contact 4.The other end of described energy-stored spring 8 also can be connected on the strutting piece 5.Described energy-stored spring 8 provides the contact pressure of two breakpoints, by adjust moving contact A1, A2 with respect to the arm of force length of rotating shaft 7 and contact-making surface 9 with respect to the proportionate relationship of the arm of force length of rotating shaft 7, can reduce operating physical force.
Description of drawings
Fig. 1 is the partial structurtes schematic diagram of co-directional serial double-break small circuit breaker embodiment of the present invention, there is shown the structure of operating mechanism and contact apparatus.
Fig. 2 is the partial schematic diagram of co-directional serial double-break small circuit breaker embodiment of the present invention, there is shown the active force relation of operating mechanism and moving contact in the disconnection process.
Fig. 3 is the operating mechanism of co-directional serial double-break small circuit breaker embodiment of the present invention and the assembling schematic diagram of contact apparatus.
Fig. 4 is the structural representation of the moving contact of co-directional serial double-break small circuit breaker embodiment of the present invention.
Fig. 5 is the structural representation of lever of the operating mechanism of co-directional serial double-break small circuit breaker embodiment of the present invention.
Embodiment
The operating mechanism as shown in Figure 1, 2 and the structure of contact apparatus, moving contact 4 on the operating mechanism 3 in the shell 1 of co-directional serial double-break small circuit breaker of the present invention rotates around rotating shaft 7, under the driving of operating mechanism 3, can realize closure/disjunction campaign in the certain zone in shell 1.Described moving contact 4 includes two moving contact A1 and A2 (referring to shown in Figure 4), two moving contact A1, A2 form in circuit and are connected in series, respectively with case for circuit breaker 1 in two fixed contact B1 and the corresponding realization of B2 (B2 is not shown) contact closure/breaking operation, and on the main circuit of miniature circuit breaker two breakpoints of formation.
The structure of contact apparatus is shown in Fig. 3,4,5, and moving contact 4 comprises: two with shell 1 in the corresponding mutually moving contact (A1, A2) that can in circuit, realize being connected in series of two fixed contacts (B1, B2), jockey 12 and the strutting piece 5 of moving contact 4 around rotating shaft 7 rotations are provided.Moving contact 4 is provided with two moving contacts (A1, A2), and it and strutting piece 5 adopts known technique for riveting to be fastenedly connected, have on the described strutting piece 5 respectively with described moving contact 4 on corresponding two boss of two moving contacts (A1, A2) (C1, C2).Two faces (D1, D2) that cooperate with two boss (C1, C2) on the strutting piece 5 are arranged on the lever 6 of operating mechanism 3, form stopping means.Also be provided with a contact-making surface 9 on the strutting piece 5, with on the handle 2 of operating mechanism 3 one can refer to that 13 (shown in Fig. 1) cooperatively interact with the homodromous driving of handle, form energy storage device.Described energy storage device also comprises the energy-stored spring 8 that is connected between lever 6 and the moving contact 4.Lever 6 on the operating mechanism 3 is made by insulating material, and a mutually corresponding up and down through hole 11 arranged, moving contact 4 around rotating shaft 7 pass on the lever 6 that this through hole 11 is installed in operating mechanism 3, simultaneously on the strutting piece 5 provide moving contact 4 the jockey 12 that rotates around rotating shaft 7 and moving contact 4 between rotating shaft 7, form matched in clearance.
From Fig. 4 as seen, the feature of the co-directional serial double-break of co-directional serial double-break small circuit breaker of the present invention is that moving contact 4 is fork configuration, and two moving contacts (A1, A2) are formed on the end of two forks respectively with form in the same way.Moving contact 4 usefulness good conductors are made, and are connected in series so that two moving contacts (A1, A2) form naturally.Two fixed contacts (B1, B2) that corresponding cooperation with moving contact (A1, A2) realizes closure/disjunction respectively with main circuit in the input wires terminal be connected with output wiring terminal.
At moving contact 4 by being closed in the process of opening, as shown in Figure 2, two faces (D1, D2) on lever 6 respectively with two boss (C1, C2) of described moving contact 4 when contacting, will on two boss (C1, C2) of moving contact 4, produce respectively with moving contact 4 be two tangential force F1, the F2 (as shown in Figure 3) along moving contact 4 direction of rotation of the strong point around rotating shaft 7, when F1 equates with F2, it is consistent that two moving contacts (A1, A2) position on the moving contact 4 reaches, and disconnect synchronously.
At moving contact 4 by opening in the closed process, shown in Fig. 1,4,5, when the homodromous driving on the handle 2 of operating mechanism 3 refer to 13 with strutting piece 5 on described contact-making surface 9 come in contact and when producing sliding friction, because being operated the driving of mechanism 3, the effect of frictional force f, moving contact 4 refer to that 13 give pinning.Along with operating mechanism 3 continues rotation under the drive of handle 2, make two boss (C1 on the strutting piece 5, C2) with lever 6 on two face (D1, D2) separate, stopping means lost efficacy, moving contact 4 relative operating mechanism 3 counter motions, the active force of 8 pairs of moving contacts 4 of energy-stored spring strengthens and the beginning energy storage, so that finally overcome driving on the handle 2 refer to 13 with strutting piece 5 on described contact-making surface 9 contacted frictional force f, make on the handle 2 homodromous driving refer to 13 on the described contact-making surface 9 on the strutting piece 5 friction slip, until this friction slip finish and make drive refer to 13 break away from contact-making surface 9 after, frictional force f suddenly disappears, energy-stored spring 8 releases energy, produce fast rotational to drive moving contact 4, and with certain impact velocity and two fixed contact (B1, B2) contact, and two moving contact (A1 on moving contact 4, A2) with corresponding fixed contact (B1, B2) produce required contact pressure between.
Open and describe and to learn by being closed to from above by opening to closed operating process, the energy storage device of co-directional serial double-break small circuit breaker of the present invention and stopping means are not independent device all, but the structure on a series of parts of operating mechanism and contact apparatus that combines makes up cleverly.Described energy storage device comprise contact-making surface 9 on the strutting piece 5 that is formed on contact apparatus, and the handle that is formed on operating mechanism 32 that cooperatively interacts of contact-making surface 9 on and refer to 13, be connected in the lever 6 of operating mechanism 3 and the energy-stored spring 8 between the moving contact 4 with handle 2 homodromous drivings, this energy-stored spring 8 also is that contact apparatus is used to produce the contact contact pressure and alleviates the moving contact excess of stroke and collides and destroy indispensable element.Described stopping means comprise on the strutting piece 5 that is formed on contact apparatus respectively with moving contact 4 on corresponding two boss of two moving contacts (A1, A2) (C1, C2), be formed on two faces (D1, D2) that match with two boss (C1, C2) respectively on the lever 6 of operating mechanism 3.Obviously, the part of described energy storage device and stopping means be operating mechanism and contact apparatus originally the part that must have, owing to omitted the part that energy storage device and stopping means increased of prior art, thereby simplify the structure greatly, saved the space, provide possibility for volume that dwindles the circuit breaker product and the overall dimension that makes product meet the modularization standard-required.
As can be seen from Figure 1, the contact pressure of two breakpoints is provided by energy-stored spring 8, though the summation of the contact pressure of co-directional serial double-break contact is 2 times of contact pressure of single-break contact, but can be by adjusting moving contact (A1, A2) with respect to the arm of force length of rotating shaft 7 and contact-making surface 9 proportionate relationship with respect to the arm of force length of rotating shaft 7, reach the requirement that reduces operating physical force, in design, avoiding providing possibility because of the increasing transmission arm of force increases mechanism's volume.
As mentioned above, described jockey 12 comprise the through hole that is formed on the strutting piece 5 and with the lever that is installed in operating mechanism 36 that this via clearance cooperates on rotating shaft 7.The purposes of described matched in clearance is that strutting piece 5 can not only be rotated around the axle of rotating shaft 7, and can also be around the radial deflection of rotating shaft 7, with the uniformity of the contact pressure that strengthens two breakpoints and the adaptivity of synchronizing close/disjunction, under wearing and tearing inconsistent situation, still keep reliably working at two breakpoints.For example, in breaking course, inconsistent and cause two moving contacts (A1 when the wearing and tearing of two breakpoints, A2) with two fixed contact (B1, when B2) deflection takes place in the contact back, must make on the strutting piece 5 of the less relatively moving contact of wearing and tearing one side boss (C1 or C2) in advance with lever 6 on face (D1 or D2) come in contact, because the disconnection shock effect of moving contact, just formerly produce tangential impact power on the boss of contact, under the acting in conjunction of this impulsive force and above-mentioned matched in clearance, make the moving contact of the more side of wearing and tearing on the moving contact that quick radial deflection around rotating shaft 7 take place, boss so that wear and tear on the strutting piece 5 of more moving contact one side contacts with the face on the lever 6 thereupon fast, because deflection speed is exceedingly fast, so two boss (C1, C2) with two face (D1, D2) Jie Chu time difference minimum (almost contact simultaneously), thus realize the effect of disconnection synchronously.From last explanation as can be seen, realize the synchronous disjunction of two breakpoints by the matched in clearance between through hole on the strutting piece 5 and the rotating shaft 7, two boss (C1, C2) on the also necessary dependence strutting piece 5 and the cooperation of two faces (D1, D2) on the lever 6, and this synchronous disjunction has overcome the contact wear of prior art and the defective of disjunction hysteresis vicious circle.In like manner, in closing course, because the effect and the strutting piece 5 of described matched in clearance can be around the radial deflections of rotating shaft 7, so the contact pressure of two breakpoints meeting autobalance is even, two breakpoints closed automatically synchronously, thereby strengthened the uniformity of contact pressure of two breakpoints and the adaptivity of synchronizing close/disjunction greatly.
The above only is preferred embodiment of the present invention, and all technical equivalences of making according to claim of the present invention change and revise, and all should belong to/be considered as within the covering scope of the present invention.For example, from Fig. 3,4 as seen, energy-stored spring 8 is a torsion spring, is sleeved on the rotating shaft 7, and the one end is connected on the lever 6 of operating mechanism 3, and the other end is connected on the moving contact 4.Not hard to imagine, another kind of alternative scheme is, is sleeved on the energy-stored spring 5 on the rotating shaft 7, and the one end is connected on the lever 6 of operating mechanism 3, and the other end also can be connected on the strutting piece 5.
In addition, above embodiment has provided described two boss (C1, C2) and has been formed on the strutting piece 5, not hard to imagine, another embodiment of alternative this scheme is that two boss (C1, C2) are respectively formed on the moving contact 4, its alternative reason be strutting piece 5 with moving contact 4 for being fixed together.
Claims (8)
1. co-directional serial double-break small circuit breaker comprises operating mechanism, co-directional serial double-break contact apparatus in the insulation crust, plays the energy storage device of quick-make effect and plays the stopping means of synchronizing close/disconnection effect, it is characterized in that:
Described co-directional serial double-break contact apparatus comprises moving contact (4) with two moving contacts (A1, A2) of realizing being connected in series in circuit, with the fixedly connected strutting piece (5) of moving contact (4), be fixed in the shell (1) and two fixed contacts (B1, the B2) corresponding closure/disjunction of two moving contacts (A1, A2), with a jockey (12), moving contact (4) is used for being connected, so that can be realized closure/disjunction campaign in certain zone with described operating mechanism (3) pivot;
Described energy storage device comprises that the contact-making surface (9) that is formed on the described strutting piece (5), the homodromous driving of the handle with operating mechanism (3) (2) that matches with contact-making surface (9) refer to (13), the lever (6) of (3) that is connected in operating mechanism and the energy-stored spring (8) between the moving contact (4);
Described stopping means comprise be formed on strutting piece (5) or the moving contact (4) respectively with moving contact (4) on corresponding two boss of two moving contacts (A1, A2) (C1, C2), be formed on two faces (D1, D2) that match with two boss (C1, C2) respectively on the lever (6) of operating mechanism (3).
2. co-directional serial double-break small circuit breaker according to claim 1, it is characterized in that: described jockey (12) comprises through hole that is formed on the strutting piece (5) and the rotating shaft (7) on the lever that is installed in operating mechanism (3) (6) that cooperates with this via clearance, by described matched in clearance, make the strutting piece (5) can not only be around the axial rotation of rotating shaft (7), and can also be around the radial deflection of rotating shaft (7), with the uniformity of the contact pressure that strengthens two breakpoints and the adaptivity of synchronizing close/disjunction, wearing and tearing with the contact at two breakpoints still can keep reliably working under the inconsistent situation.
3. co-directional serial double-break small circuit breaker according to claim 1 is characterized in that: described moving contact (4) is the fork-shaped conductor structure, and two moving contacts (A1, A2) are respectively formed at the end of two forks.
4. co-directional serial double-break small circuit breaker according to claim 1 is characterized in that: described two fixed contacts (B1, B2) are connected with input binding post, the output binding post of main circuit respectively.
5. co-directional serial double-break small circuit breaker according to claim 1 and 2, it is characterized in that: the lever (6) of operating mechanism (3) is made by insulating material, described lever (6) is provided with perforation (11), is used to install the rotating shaft (7) of described jockey (12).
6. co-directional serial double-break small circuit breaker according to claim 1, it is characterized in that: described energy-stored spring (8) is for being sleeved on the torsion spring on the described rotating shaft (7), one end of this torsion spring is connected on the lever (6) of operating mechanism (3), and the other end is connected on the moving contact (4).
7. co-directional serial double-break small circuit breaker according to claim 1, it is characterized in that: described energy-stored spring (8) is for being sleeved on the torsion spring on the described rotating shaft (7), one end of this torsion spring is connected on the lever (6) of operating mechanism (3), and the other end is connected on the strutting piece (5).
8. co-directional serial double-break small circuit breaker according to claim 1, it is characterized in that: described energy-stored spring (8) provides the contact pressure of two breakpoints, by adjust moving contact (A1, A2) with respect to the arm of force length of rotating shaft (7) and contact-making surface (9) with respect to the proportionate relationship of the arm of force length of rotating shaft (7), can reduce operating physical force.
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| CN2008101474866A CN101656179B (en) | 2008-08-21 | 2008-08-21 | Co-directional serial double-break small circuit breaker |
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| CN2008101474866A CN101656179B (en) | 2008-08-21 | 2008-08-21 | Co-directional serial double-break small circuit breaker |
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| CN101656179A true CN101656179A (en) | 2010-02-24 |
| CN101656179B CN101656179B (en) | 2011-12-14 |
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| CN102315050A (en) * | 2010-07-06 | 2012-01-11 | 西门子公司 | Circuit breaker |
| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN104201071A (en) * | 2014-07-31 | 2014-12-10 | 浙江天正电气股份有限公司 | Small-sized circuit breaker provided with rapid contact closing mechanism |
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| CN104599913B (en) * | 2015-01-21 | 2016-08-24 | 温州高能电气有限公司 | A kind of RCCB |
| CN108648969A (en) * | 2018-06-28 | 2018-10-12 | 美高电气科技有限公司 | A kind of double breaking points miniature circuit breaker |
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| CN109326463A (en) * | 2018-10-24 | 2019-02-12 | 首瑞（天津）电气设备有限公司 | A kind of electric appliance component |
| WO2020146996A1 (en) * | 2019-01-15 | 2020-07-23 | 赵建平 | Moving contact mechanism of double-breakpoint circuit breaker |
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| FR2616583B1 (en) * | 1987-06-09 | 1995-01-06 | Merlin Gerin | CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER |
| FR2703824B1 (en) * | 1993-04-07 | 1995-05-12 | Merlin Gerin | Multipolar limiter circuit breaker with electrodynamic repulsion. |
| CZ299994B6 (en) * | 2003-10-24 | 2009-01-14 | Jovean & Rogy Electrical Holding Co., Ltd | Circuit breaker trigger mechanism |
| CN2833865Y (en) * | 2005-11-17 | 2006-11-01 | 上海电器股份有限公司人民电器厂 | Self-balancing circuit breaker contact device |
| CN201302964Y (en) * | 2008-08-21 | 2009-09-02 | 浙江正泰电器股份有限公司 | A small-size equidirectional series double-breakpoint circuit breaker |
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| CN102315050A (en) * | 2010-07-06 | 2012-01-11 | 西门子公司 | Circuit breaker |
| CN102456515A (en) * | 2010-10-20 | 2012-05-16 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN102456515B (en) * | 2010-10-20 | 2014-09-24 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
| CN104201071A (en) * | 2014-07-31 | 2014-12-10 | 浙江天正电气股份有限公司 | Small-sized circuit breaker provided with rapid contact closing mechanism |
| CN105590804A (en) * | 2014-11-04 | 2016-05-18 | 西门子公司 | Opening mechanism of breaker, and breaker |
| CN105590804B (en) * | 2014-11-04 | 2018-03-27 | 西门子公司 | The brake separating mechanism and its breaker of breaker |
| CN104599913B (en) * | 2015-01-21 | 2016-08-24 | 温州高能电气有限公司 | A kind of RCCB |
| CN108648969B (en) * | 2018-06-28 | 2023-12-01 | 美高电气科技有限公司 | Double-breakpoint miniature circuit breaker |
| CN108648969A (en) * | 2018-06-28 | 2018-10-12 | 美高电气科技有限公司 | A kind of double breaking points miniature circuit breaker |
| CN109216054A (en) * | 2018-10-24 | 2019-01-15 | 首瑞（天津）电气设备有限公司 | A kind of electric appliance component |
| CN109326463A (en) * | 2018-10-24 | 2019-02-12 | 首瑞（天津）电气设备有限公司 | A kind of electric appliance component |
| CN109326492A (en) * | 2018-11-16 | 2019-02-12 | 加西亚电子电器股份有限公司 | A kind of operating mechanism of double-contact breaker |
| CN109326492B (en) * | 2018-11-16 | 2024-02-13 | 加西亚电子电器股份有限公司 | Operating mechanism of double-contact breaker |
| CN113056805A (en) * | 2019-01-15 | 2021-06-29 | 赵建平 | Moving contact mechanism of double-breakpoint circuit breaker |
| GB2593085A (en) * | 2019-01-15 | 2021-09-15 | Zhao Jianping | Moving contact mechanism of double-breakpoint circuit breaker |
| CN113056805B (en) * | 2019-01-15 | 2022-06-21 | 赵建平 | Moving contact mechanism of double-breakpoint circuit breaker |
| RU2777445C1 (en) * | 2019-01-15 | 2022-08-04 | Цзяньпин ЧЖАО | Mechanism of movable contact of a double-gap automatic circuit breaker |
| GB2593085B (en) * | 2019-01-15 | 2023-01-04 | Zhao Jianping | Movable contact mechanism of double-breakpoint circuit breaker |
| WO2020146996A1 (en) * | 2019-01-15 | 2020-07-23 | 赵建平 | Moving contact mechanism of double-breakpoint circuit breaker |
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