CN102456515B - Multi-break plastic-shell type circuit breaker - Google Patents
Multi-break plastic-shell type circuit breaker Download PDFInfo
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- CN102456515B CN102456515B CN201010527233.9A CN201010527233A CN102456515B CN 102456515 B CN102456515 B CN 102456515B CN 201010527233 A CN201010527233 A CN 201010527233A CN 102456515 B CN102456515 B CN 102456515B
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Abstract
The invention provides a multi-break circuit breaker. A preset connecting mode is adopted. In an insulating shell, every two adjacent groups of movable contacts are connected by a conductor, or a group of movable contacts and static contacts corresponding to the adjacent group of movable contacts are connected by another conductor; after connection in any mode, poles which are provided with at least two breaks connected in series and are homopolar and cophasal are formed; and two groups of movable contacts can rotate independently relative to an insulating rotary shaft. A plurality of breakpoints are connected in series in the circuit breaker shell, and a user does not need to connect wires at wiring terminals independently in order to connect the breaks in series. The long time-delay characteristic also is set under the mode of preset connecting wires, and the acting characteristic of the multi-break circuit breaker is not influenced when the multi-break circuit breaker is used by the user.
Description
Technical field
The present invention relates to breaker of plastic casing, belong to Low Voltage Electrical Apparatus.
Background technology
Along with the development of new energy technology, low voltage component is had higher requirement.Especially the development along with photovoltaic power plant grows, and the performance index of the protection component that power plant is required have also had higher requirement, and for example, in photo-voltaic power supply direct current system, the rated operational voltage of low-voltage electrical apparatus is up to DC1500V.Adopt the method for breakpoint series connection, can improve the interrupting performance of circuit breaker.To this, domestic and international many producers have also launched respectively various breaker connection application schemes, at the external wiring terminal place of circuit breaker, carry out wiring, make the two poles of the earth of circuit breaker or more multi-stage series connection get up to form series connection breakpoint.Although this application scheme can reach the requirement of high working voltage, but often the wiring at engineering application middle connecting terminal place can be according to the length 2m of 8.3.3.3.4 regulation in GB 14048.2, cause like this heat accumulation herein to increase, heat is behind circuit breaker inside, and directly impact adopts bimetal leaf as the long delay operating characteristics of long delay release.
Summary of the invention
The present invention proposes a kind of multibreak circuit breaker, adopt preset connected mode, in Shell of circuit breaker inside, a plurality of breakpoints are connected, need not user for the breakpoint of connecting is voluntarily in the wiring of binding post place.Long delay characteristic is also to adjust under the mode of this preset wiring, and when user uses, its operating characteristics can not be affected yet.
The present invention is by the following technical solutions:
A multibreak moulded case circuit breaker, comprises insulation shell, operating mechanism, release lever, moving contact, fixed contact, arc control device, insulation rotating shaft.At least two group moving contacts are installed in insulation rotating shaft, respectively organize mutually insulated between moving contact after installation, can rotate with respect to insulation rotating shaft, and every group of moving contact all has corresponding fixed contact and arc control device.In insulation shell, between every two groups of adjacent moving contacts, by a conductor, connect, or by a conductor, connect between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact, and after connecting by above any-mode, form and there is same polarity or the synchronous utmost point that at least two breakpoints are in series, and two groups of moving contacts can be with respect to insulation rotating shaft independent rotation.
Bonding conductor between two groups of adjacent moving contacts or between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact is flexible conductor, hard conductor or both combinations.
At least one thermal overload release or at least one magnetic release can be set on bonding conductor.
Hard conductor, is characterized in that: hard conductor contacts with moving contact, and moving contact can rotate relative to hard conductor.
When connecting by a conductor between two groups of adjacent moving contacts, breaker outgoing line end is drawn on fixed contact; After being connected by conductor between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact, leading-out terminal is being drawn after moving contact.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of embodiment 1;
Fig. 2 is the schematic diagram of embodiment 2;
Fig. 3 is the axis side view of embodiment 1.1;
Fig. 4 is the structure chart of the bar shaped moving contact in embodiment 1.1;
Fig. 5 is the structure chart of the insulation rotating shaft in embodiment 1.1;
Fig. 6 is the axis side view of embodiment 1.2;
Fig. 7 is the structure chart of the bar shaped moving contact in embodiment 1.2;
Fig. 8 is the structure chart of the insulation rotating shaft in embodiment 1.2;
Fig. 9 is the structure chart of the clamping plate in embodiment 1.2
Figure 10 is the axis side view of embodiment 1.3;
Figure 11 is the structure chart of the clamping plate in embodiment 1.3.
Embodiment
Embodiments of the invention 1, as shown in Figure 1.In insulation shell 102, comprise operating mechanism, release lever, moving contact group 100, fixed contact 101, arc control device, insulation rotating shaft.100 adjacent of two groups of moving contact groups connect by conductor 2.The leading-out terminal of circuit breaker is drawn on fixed contact.
Embodiments of the invention 2, as shown in Figure 2.In insulation shell 102, comprise operating mechanism, release lever, moving contact group 100, fixed contact 101, arc control device, insulation rotating shaft.One moving contact group 100 is connected by conductor 2 with 101 adjacent of the corresponding fixed contacts of moving contact group 100.The leading-out terminal of circuit breaker is drawn in moving contact group 100.
Embodiments of the invention 1.1, as in Figure 3-5.Bar shaped moving contact 1, axle 5 and insulation rotating shaft 7, axle 5 also passes the cylindrical screw part of torsion spring 6 through the hole 11 on bar shaped moving contact 1, and is placed in the groove 72 of insulation rotating shaft 7.On torsion spring 6, turn round in the groove 12 that arm 61 is pressed in bar shaped moving contact 1 afterbody, under torsion spring 6, turn round arm 62 be pressed in insulation rotating shaft 7 face 71 on, by above two active positions, make torsion spring 6 store certain energy, and the inner surface of the cylindrical screw part of torsion spring 6 is pressed on the cylindrical outer surface of axle 5, thereby tightly axle 5 is pressed in the groove 72 of insulation rotating shaft 7.Meanwhile, owing to turning round the afterbody that arm 61 acts on bar shaped moving contact 1 on torsion spring 6, the middle part of bar shaped moving contact is pressed on the face 73 of insulation rotating shaft 7.Such structure makes bar shaped moving contact 1 can take axle 5 as axle center, rotate, but the prerequisite that bar shaped moving contact 1 rotates is the torsion that must overcome torsion spring 6 with respect to insulation rotating shaft 7.Flexible conductor 21 connects the afterbody of two bar shaped moving contacts 1 by the mode of welding.Owing to connecting two bar shaped moving contacts 1 for being flexible coupling, so two bar shaped moving contacts can relatively independently rotate.
Embodiments of the invention 1.2, as Figure 6-9.Bar shaped moving contact 1, axle 5 and insulation rotating shaft 7, the hole 11 that axle 5 passes on bar shaped moving contact 1, and through the hole 74 in insulation rotating shaft 7.Stage clip 8 one end are pressed on the face 75 of insulation rotating shaft, and the other end is pressed in taking advantage of on spring bracket 12 on bar shaped moving contact 1, make stage clip 7 store certain energy, and make on bar shaped moving contact 1 face 73 that is pressed in insulation rotating shaft 7 tightly.Such structure makes bar shaped moving contact 1 can take axle 5 as axle center, rotate, but the prerequisite that bar shaped moving contact 1 rotates is the pressure that must overcome stage clip 8 with respect to insulation rotating shaft 7.Hole 231 on clamping plate 23 is also passed by axle 5, and clamping plate 23 have clamped face 13 and the face 14 of bar shaped moving contact 1.One end of stage clip 9 is pressed on clamping plate 23, and the other end is pressed in insulation rotating shaft 7 by pressing plate 91.Making like this stage clip store must energy, and clamping plate 23 are pressed on the face 13 and face 14 of bar shaped moving contact tightly, thereby has obtained well and electrically contact.Connection support sheet connects two groups of clamping plate 23.Connection support sheet 22 and clamping plate 23 have formed the conductor 2 between two groups of bar shaped moving contacts 1.Due to clamping plate 23, taked the mode of clamping and has been connected with bar shaped moving contact 1, so the degree of freedom of bar shaped moving contact rotation is not subject to the impact of conductor 2, can guarantee that each bar shaped moving contact 1 rotation in two groups of bar shapeds is all separate.
Embodiments of the invention 1.3, as shown in Figure 10-11.Except the structure shown in embodiment 2, thermal overload release 3 and magnetic release 4 have been increased.Thermal overload release 3 is comprised of bimetal leaf 31, and magnetic release is comprised of armature 41, support 42, yoke 43.Meanwhile, wherein the structure of one group of clamping plate 23 also changes, and except realizing the clamping bar shaped moving contact 1 in embodiment 2 and not affecting the function of its rotation, has increased hole 232.Hole 232 act as strap 23, and changing by insulation rotating shaft 7 back shafts 5 is that clamping plate 23 support.Also there are other variant forms in embodiment 3, as the clamping plate 23 in left side change the structure of the clamping plate 23 on right side into, can be increased to two groups of thermal overload releases 3 and magnetic release 4.The release arranging on conductor 2 is not limited only to one group or two groups, and after increasing these and arranging, conductor does not affect the relatively independent rotation of each bar shaped moving contact 1 of double break contact.
Claims (3)
1. a multibreak moulded case circuit breaker, comprise insulation shell, operating mechanism, release lever, moving contact, fixed contact, arc control device, insulation rotating shaft, at least two group moving contacts are installed in insulation rotating shaft, after installation, respectively organize mutually insulated between moving contact, can rotate with respect to insulation rotating shaft, every group of moving contact all has corresponding fixed contact and arc control device, it is characterized in that: in insulation shell, between every two groups of adjacent moving contacts, by a conductor, connect, or by a conductor, connect between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact, and after connecting by above any-mode, form and there is same polarity or the synchronous utmost point that at least two breakpoints are in series, and two groups of moving contacts can be with respect to insulation rotating shaft independent rotation,
Bonding conductor between two groups of adjacent moving contacts or between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact is flexible conductor, hard conductor or both combinations;
Hard conductor contacts with moving contact, and moving contact can rotate relative to hard conductor.
2. multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that: at least one thermal overload release or at least one magnetic release can be set on it.
3. multi-break plastic-shell type circuit breaker according to claim 1, is characterized in that: when connecting by a conductor between two groups of adjacent moving contacts, breaker outgoing line end is drawn on fixed contact; After being connected by conductor between one group of moving contact and adjacent one group of corresponding fixed contact of moving contact, leading-out terminal is drawn after moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010527233.9A CN102456515B (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010527233.9A CN102456515B (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
Publications (2)
| Publication Number | Publication Date |
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| CN102456515A CN102456515A (en) | 2012-05-16 |
| CN102456515B true CN102456515B (en) | 2014-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010527233.9A Active CN102456515B (en) | 2010-10-20 | 2010-10-20 | Multi-break plastic-shell type circuit breaker |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483687A (en) * | 2015-01-02 | 2015-04-01 | 江苏新瑞峰信息科技有限公司 | Automobile multimedia device |
| CN104779129B (en) * | 2015-04-16 | 2017-09-29 | 北京人民电器厂有限公司 | A kind of double-deck pole is coupled the breaker of structure |
| CN107045964B (en) * | 2016-02-05 | 2020-02-21 | 上海良信电器股份有限公司 | Multipolar circuit breaker return circuit structure |
| CN105719918B (en) * | 2016-04-15 | 2019-06-21 | 常熟开关制造有限公司(原常熟开关厂） | Multibreak breaker of plastic casing |
| CN105914109B (en) * | 2016-07-06 | 2018-09-04 | 上海电科电器科技有限公司 | The galvanic circle of breaker |
| CN105931928B (en) * | 2016-07-06 | 2018-11-09 | 上海电科电器科技有限公司 | The galvanic circle of breaker |
| CN109559942B (en) * | 2017-09-26 | 2024-05-17 | 上海精益电器厂有限公司 | Circuit breaker with embedded conducting plate |
| CN108428586B (en) * | 2018-03-22 | 2019-08-02 | 上海得慨电气有限公司 | A kind of circuit breaking switch structure of small size high reliability |
| CN113936979A (en) * | 2020-07-13 | 2022-01-14 | 北京京人电器有限公司 | Circuit breaker of multi-breakpoint contact system |
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| CN1416150A (en) * | 2001-10-30 | 2003-05-07 | 浙江正泰电器股份有限公司 | Multipolar low-voltage breaker with double breaks and plastic case |
| CN101004982A (en) * | 2006-01-17 | 2007-07-25 | 叶可 | Small bipolar breaker with contactor function |
| CN201359982Y (en) * | 2009-02-26 | 2009-12-09 | 常熟开关制造有限公司(原常熟开关厂） | Multi-pole low-voltage rotation double-break molded case circuit breaker |
| CN101625940A (en) * | 2008-07-07 | 2010-01-13 | 北京人民电器厂有限公司 | Double-break micro breaker |
| CN101656179A (en) * | 2008-08-21 | 2010-02-24 | 浙江正泰电器股份有限公司 | Co-directional serial double-break small circuit breaker |
| CN201829430U (en) * | 2010-10-20 | 2011-05-11 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
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2010
- 2010-10-20 CN CN201010527233.9A patent/CN102456515B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1416150A (en) * | 2001-10-30 | 2003-05-07 | 浙江正泰电器股份有限公司 | Multipolar low-voltage breaker with double breaks and plastic case |
| CN101004982A (en) * | 2006-01-17 | 2007-07-25 | 叶可 | Small bipolar breaker with contactor function |
| CN101625940A (en) * | 2008-07-07 | 2010-01-13 | 北京人民电器厂有限公司 | Double-break micro breaker |
| CN101656179A (en) * | 2008-08-21 | 2010-02-24 | 浙江正泰电器股份有限公司 | Co-directional serial double-break small circuit breaker |
| CN201359982Y (en) * | 2009-02-26 | 2009-12-09 | 常熟开关制造有限公司(原常熟开关厂） | Multi-pole low-voltage rotation double-break molded case circuit breaker |
| CN201829430U (en) * | 2010-10-20 | 2011-05-11 | 北京人民电器厂有限公司 | Multi-break plastic-shell type circuit breaker |
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| CN102456515A (en) | 2012-05-16 |
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