CN103050342B - Circuit breaker operation mechanism and circuit breaker - Google Patents
Circuit breaker operation mechanism and circuit breaker Download PDFInfo
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- CN103050342B CN103050342B CN201210558979.5A CN201210558979A CN103050342B CN 103050342 B CN103050342 B CN 103050342B CN 201210558979 A CN201210558979 A CN 201210558979A CN 103050342 B CN103050342 B CN 103050342B
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Abstract
The invention relates to a circuit breaker operation mechanism and a circuit breaker, wherein the circuit breaker operation mechanism comprises a contact support piece, and a lock catch mechanism, a lock catch reset spring, a moving contact and a mechanism spring which are arranged on the contact support piece; a cylindrical bulge extends outwards from one side of the contact support piece; a limit groove is arranged along the height direction of the cylindrical bulge; a spacer piece is arranged in the limit groove; an installation hole is arranged on the moving contact; and the edge of the installation hole is provided with a limit bulge which is matched with the shape of the limit groove. The moving contact can be positioned in a Z direction through the tabling of the limit groove on the contact support piece and the limit bulge in the installation hole of the moving contact, so that the problems that the moving contact is reversed, the contact resistance is unstable and the contact resistance is increased are solved. Particularly the phenomena that as electro-dynamic repulsion force is produced between the contacts of a multi-polar product under the action of electromotive power, the contacts are seriously reversed, the service life is shortened and the short-circuit protection capability is significantly reduced are overcome.
Description
Technical field
The present invention relates to a kind of circuit breaker, more particularly, the circuit breaker that relates to a kind of operating mechanism of circuit breaker and use this circuit breaker operation mechanism.
Background technology
Existing circuit breaker, moving contact is in the Width infinite place feature of product, and moving contact and fixed contact are poor in the Width symmetry of product, cause product poor in temperature rise stability, and mechanical electric life-span and short circuit breaking capacity decline; The mechanical spring of product is stage clip, and when closed, stage clip is easily crooked, and the responsiveness of product construction is subject to severely restricts, and unstable; One end of snap close back-moving spring torsion spring is bending feature, and power value is unstable, easily causes product construction return unstable, affects the mechanism stable of product.Easily cause the product mechanical electric life-span to decline, and the linkage of multipole product decline.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides the circuit breaker of a kind of circuit breaker operation mechanism and this circuit breaker operation mechanism of use.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of circuit breaker operation mechanism, comprise contact supporter, be arranged on latching device, snap close back-moving spring, moving contact and mechanism's spring on described contact supporter, described contact supporter one epitaxial lateral overgrowth is stretched and is had cylindrical projection, along offering limited impression in the short transverse of described cylindrical projection, in described limited impression, be provided with barrier sheet; Described moving contact is provided with installing hole, described installing hole edge is provided with the spacing preiection matching with described limited impression shape, described moving contact is set in described cylindrical projection by described installing hole, and described spacing preiection and described limited impression chimeric and be positioned at a side of described barrier sheet.
Circuit breaker operation mechanism of the present invention, wherein, the limited impression that described limited impression is V-arrangement, the spacing preiection that described spacing preiection is V-arrangement.
Circuit breaker operation mechanism of the present invention, wherein, described contact supporter top is also provided with installation groove, and a side of described contact supporter, the side of described installation groove are provided with round platform;
One end of described mechanism spring bends and extends to a side, comprises bending segment and extension, and described bending segment is positioned at described installation groove, and described extension and described contact supporter are provided with a side laminating of described round platform, and are resisted against on described round platform.
Circuit breaker operation mechanism of the present invention, wherein, described latching device comprises snap close and the tripping being arranged on rotationally on described contact supporter, described snap close is provided with extension portion, described tripping is provided with the hook part coordinating with described extension portion, and described snap close coordinates by described extension portion and hook part hooking with described tripping.
Circuit breaker operation mechanism of the present invention, wherein, described contact supporter is provided with erection column and the first boss, and described snap close is provided with the second boss; Described snap close back-moving spring is arranged on described erection column, and one end is resisted against on described the first boss, and the other end is resisted against on described the second boss.
Circuit breaker operation mechanism of the present invention, wherein, described the first boss bottom side offers the first stopper slot, and described the second boss is provided with the second stopper slot, one end of described snap close back-moving spring is positioned at described the first stopper slot, and the other end is resisted against in described the second stopper slot.
Circuit breaker operation mechanism of the present invention, wherein, described the second boss is one to stretch out and the structure of end bending.
Circuit breaker operation mechanism of the present invention, wherein, the length that described snap close back-moving spring is resisted against described first boss one end is greater than the length that is resisted against described second boss one end.
Circuit breaker operation mechanism of the present invention, wherein, the offside that described cylinder boss one side is installed on described contact supporter also offers for avoiding the hole of mould core pulling.
Another program that the present invention solves its technical problem employing is: construct a kind of circuit breaker, comprise shell, be arranged on handle on described shell rotationally, be arranged on arc sheet in described shell, by fixed contact supporter, be arranged on fixed contact in described shell, be arranged on the electromagnet coil of leading arc plate, leading the arc control device of arc plate one side and being arranged on described arc control device top described in being arranged in the space being surrounded by described arc sheet
Also comprise circuit breaker operation mechanism as described above, described handle one end is hinged with connecting rod, and one end of described connecting rod and the latching device of described circuit breaker operation mechanism are hinged.
Implement circuit breaker operation mechanism of the present invention and circuit breaker, there is following beneficial effect: the chimeric of the spacing preiection in the limited impression on contact supporter and moving contact installing hole can be at Z direction location moving contact, can avoid moving contact to reverse and cause the unstable and contact resistance of contact resistance to raise.Especially avoid multipole product under electrodynamic action, between contact, produce electrodynamic repulsion force, cause contact seriously to reverse, and the phenomenon that electric life and short-circuit protection ability are obviously declined.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 2 is the structural representation of contact supporter in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 3 is the front view of a kind of circuit breaker operation mechanism preferred embodiment of the present invention Fig. 2;
Fig. 4 is that the A of a kind of circuit breaker operation mechanism preferred embodiment of the present invention Fig. 2 is to view;
Fig. 5 is the structural representation of moving contact in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 6 is the structural representation of mechanism's spring in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 7 is the structural representation of snap close in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 8 is the structural representation of tripping in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Fig. 9 is the structural representation of snap close back-moving spring in a kind of circuit breaker operation mechanism preferred embodiment of the present invention;
Figure 10 is the structural representation of a kind of circuit breaker preferred embodiment of the present invention.
Embodiment
As shown in Figure 1, in a preferred embodiment of the invention, this circuit breaker operation mechanism comprises contact supporter 101, be arranged on the latching device on contact supporter, snap close back-moving spring 102, moving contact 103, and mechanism's spring 104, the assembly structure schematic diagram of circuit breaker operation mechanism in circuit breaker as shown in figure 10, this circuit breaker operation mechanism conventionally links with handle 100, particularly, on handle 100, be also hinged with connecting rod 105, the other end of connecting rod 105 is connected with latching device, the effect of operating mechanism is the active force that transmits handle 100, drive moving contact 103 motions in contact system to realize connection and disjunction.As in Figure 2-4, contact supporter 101 1 epitaxial lateral overgrowths are stretched cylindrical projection 106, along offering limited impression 107 in the short transverse of this cylindrical projection 106, is provided with barrier sheet 108 in limited impression 107; As shown in Figure 5, moving contact 103 is provided with installing hole 109, installing hole 109 edges are provided with the spacing preiection 110 matching with limited impression 107 shapes, moving contact 103 is set in cylindrical projection 106 by installing hole 109, and spacing preiection 110 is chimeric and be positioned at a side of barrier sheet 108 with limited impression 107.At Z direction (being the short transverse of cylindrical projection 106) location moving contact 103, can avoid moving contact 103 to reverse and cause the unstable and contact resistance of contact resistance to raise.Especially avoid multipole product under electrodynamic action, between contact, produce electrodynamic repulsion force, cause contact seriously to reverse, and the phenomenon that electric life and short-circuit protection ability are obviously declined.
In a preferred embodiment of the invention, cylindrical projection 106 is positioned at the bottom of contact supporter 101, but limit method that it should be noted that moving contact 103 can expand to any position of contact supporter 101, to be used for limiting moving contact 103 in the deflection of Z direction.And in this embodiment, the limited impression that limited impression 107 is V-arrangement, correspondingly, the spacing preiection that spacing preiection 110 is V-arrangement.Understandable, can be also the limited impression of other shapes.In addition, as shown in Figure 5, be also provided with the structure of a rectangle on installing hole 109 right sides of moving contact 103, this rectangular configuration is to weld the use that is flexible coupling, and adopts bending and molding, after the other end of being convenient to be flexible coupling welds on bimetal leaf, and bimetallic free movement.
As shown in Figure 4, contact supporter 101 tops are also provided with installs groove 111, in a side of contact supporter 101,, the side of groove 111 is installed, is provided with round platform 112; As shown in Figure 6, one end of mechanism's spring 104 bends and extends to a side, comprises bending segment 113 and extension 114, and bending segment 113 is positioned at installs groove 111, extension 114 is provided with a side laminating of round platform 112 with contact supporter 101, and is resisted against on round platform 112; And the other end of mechanism's spring 104 as shown in figure 10, is the inside that is fixed on Shell of circuit breaker.It should be noted that, the extension 114 of mechanism's spring 104 can be and bending segment 113 and the long-armed bending structure in same plane or Different Plane of the extension spring that is connected with bending segment 113, twice or bending structure repeatedly, and be understandable that, the planform of the position of round platform 112 now or installation groove 111 should be made accommodation.This structure makes the power value of mechanism's spring 104 more stable, is swift in motion, and is conducive to when circuit breaker disconnects, and arc voltage occurs rapidly and fast rise, open apart from stable and can guarantee large as far as possible, so the amplitude that arc voltage rises is also high.Thereby reduced dynamic/static contact electrical wear, accelerated the resume speed of medium, improved mechanical electric life-span and the short circuit breaking capacity of product.
Further, as shown in Figure 1, latching device comprises snap close 115 and the tripping 116 being arranged on rotationally on contact supporter 101, and wherein, one end of above-mentioned connecting rod 105 and tripping 116 are hinged.Contact supporter 101, snap close 115 and tripping 116 all can adopt plastic material to make, and are conducive to save cost.As shown in Figure 7, snap close 115 is provided with extension portion 117, and as shown in Figure 8, tripping 116 is provided with the hook part 118 coordinating with extension portion 117, and snap close 115 coordinates by extension portion 117 and hook part 118 hookings with tripping 116.The effect of latching device is when loop exists the signal of overcurrent fault or other No switching on orders, even if the handle of operating breaker 100 wants to make it to close a floodgate, the moving contact 103 of circuit breaker still can remain on open position; When loop exists overcurrent or short trouble and while sending disjunction instruction, makes circuit breaker tripping, cut off current circuit.
On the basis of the above, as shown in Figure 2, contact supporter 101 is provided with erection column 119 and the first boss 120, and as shown in Figure 7, snap close 115 is provided with the second boss 121; Snap close back-moving spring 102 is arranged on erection column 119, and one end is resisted against on the first boss 120, and the other end is resisted against on the second boss 121.Wherein, as can be seen from Figure 2, the first boss 120 bottom sides offer the first stopper slot (not illustrating with label in figure), the second boss 121 is provided with the second stopper slot (not illustrating with label in figure), one end of snap close back-moving spring 102 is positioned at the first stopper slot, and the other end is resisted against in the second stopper slot.It is more consistent with snap close direction of rotation that this structure makes snap close back-moving spring 102 be resisted against the force direction that the one end in the second stopper slot applies, so the actuating force that snap close resets is also just more stable.Thereby effectively improved the stability of mechanism.Guarantee the stability in product mechanical electric life-span, and the linkage of multipole product.
As shown in Figure 7, the second boss 121 is one to stretch out and the structure of end bending.As shown in Figure 9, the length that snap close back-moving spring 102 is resisted against first boss 120 one end is greater than the length that is resisted against second boss 121 one end.
As shown in Figure 2, the offside that cylinder boss 106 1 sides is installed on contact supporter 101 also offers for avoiding the hole 122 of mould core pulling.
As shown in figure 10, in the preferred embodiment of a kind of circuit breaker of the present invention, this circuit breaker comprises shell 200, be arranged on rotationally the handle 100 on shell 200, be arranged on the arc sheet 201 in shell 200, by fixed contact supporter 203, be arranged on the fixed contact 202 in shell 200, be arranged on and lead arc plate 204 in the space being surrounded by arc sheet 201, be arranged on the arc control device 205 of leading arc plate 204 1 sides, and the electromagnet coil 206 that is arranged on arc control device 205 tops, also comprise circuit breaker operation mechanism as described above, handle 100 one end are hinged with connecting rod 105, one end of connecting rod 105 and the latching device of circuit breaker operation mechanism are hinged.The operation principle of circuit breaker and other concrete structure belong to known technology, at this repeated description no longer.
Above embodiment is only explanation technical conceive of the present invention and feature, and its object is to allow person skilled in the art can understand content of the present invention and implement accordingly, can not limit the scope of the invention.All equalizations of doing with the claims in the present invention scope change and modify, and all should belong to the covering scope of the claims in the present invention.
Claims (10)
1. a circuit breaker operation mechanism, comprise contact supporter (101), be arranged on latching device, snap close back-moving spring (102), moving contact (103) and mechanism's spring (104) on described contact supporter (101), it is characterized in that
Described contact supporter (101) one epitaxial lateral overgrowths are stretched and are had cylindrical projection (106), along offering limited impression (107) in the short transverse of described cylindrical projection (106), in described limited impression (107), be provided with barrier sheet (108); Described moving contact (103) is provided with installing hole (109), described installing hole (109) edge is provided with the spacing preiection (110) matching with described limited impression (107) shape, it is upper that described moving contact (103) is set in described cylindrical projection (106) by described installing hole (109), and described spacing preiection (110) is chimeric and be positioned at a side of described barrier sheet (108) with described limited impression (107).
2. circuit breaker operation mechanism according to claim 1, is characterized in that, the limited impression that described limited impression (107) is V-arrangement, the spacing preiection that described spacing preiection (110) is V-arrangement.
3. circuit breaker operation mechanism according to claim 1, it is characterized in that, described contact supporter (101) top is also provided with installs groove (111), and the side of a side of described contact supporter (101), described installation groove (111) is provided with round platform (112);
One end of described mechanism spring (104) bends and extends to a side, comprise bending segment (113) and extension (114), described bending segment (113) is positioned at described installation groove (111), described extension (114) is provided with a side laminating of described round platform (112) with described contact supporter (101), and is resisted against on described round platform (112).
4. circuit breaker operation mechanism according to claim 1, it is characterized in that, described latching device comprises snap close (115) and the tripping (116) being arranged on rotationally on described contact supporter (101), described snap close (115) is provided with extension portion (117), described tripping (116) is provided with the hook part (118) coordinating with described extension portion (117), and described snap close (115) coordinates by described extension portion (117) and hook part (118) hooking with described tripping (116).
5. circuit breaker operation mechanism according to claim 4, is characterized in that, described contact supporter (101) is provided with erection column (119) and the first boss (120), and described snap close (115) is provided with the second boss (121); It is upper that described snap close back-moving spring (102) is arranged on described erection column (119), and it is upper that one end is resisted against described the first boss (120), and the other end is resisted against on described the second boss (121).
6. circuit breaker operation mechanism according to claim 5, it is characterized in that, described the first boss (120) bottom side offers the first stopper slot, described the second boss (121) is provided with the second stopper slot, one end of described snap close back-moving spring (102) is positioned at described the first stopper slot, and the other end is resisted against in described the second stopper slot.
7. circuit breaker operation mechanism according to claim 6, is characterized in that, described the second boss (121) is one to stretch out and the structure of end bending.
8. circuit breaker operation mechanism according to claim 5, is characterized in that, the length that described snap close back-moving spring (102) is resisted against described the first boss (120) one end is greater than the length that is resisted against described the second boss (121) one end.
9. according to the circuit breaker operation mechanism described in claim 1-8 any one, it is characterized in that, the offside that described cylindrical projection (106) one sides are installed on described contact supporter (101) also offers the hole (122) for avoiding mould core pulling.
10. a circuit breaker, comprise shell, be arranged on handle on described shell rotationally, be arranged on arc sheet in described shell, by fixed contact supporter, be arranged on fixed contact in described shell, be arranged on the electromagnet coil of leading arc plate, leading the arc control device of arc plate one side and being arranged on described arc control device top described in being arranged in the space being surrounded by described arc sheet, it is characterized in that
Also comprise the circuit breaker operation mechanism as described in claim 1-9 any one, described handle one end is hinged with connecting rod, and one end of described connecting rod and the latching device of described circuit breaker operation mechanism are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558979.5A CN103050342B (en) | 2012-12-20 | 2012-12-20 | Circuit breaker operation mechanism and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210558979.5A CN103050342B (en) | 2012-12-20 | 2012-12-20 | Circuit breaker operation mechanism and circuit breaker |
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| Publication Number | Publication Date |
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| CN103050342A CN103050342A (en) | 2013-04-17 |
| CN103050342B true CN103050342B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210558979.5A Active CN103050342B (en) | 2012-12-20 | 2012-12-20 | Circuit breaker operation mechanism and circuit breaker |
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| CN (1) | CN103050342B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413732A (en) * | 2013-08-29 | 2013-11-27 | 温州罗格朗电器有限公司 | Operating mechanism of breaker |
| CN103545150B (en) * | 2013-09-27 | 2017-04-19 | 浙江大华电气有限公司 | Breaker operating mechanism |
| CN103500690B (en) * | 2013-09-30 | 2015-12-16 | 长城电器集团有限公司 | A kind of energy storage device of circuit breaker |
| CN105914110B (en) * | 2016-06-20 | 2017-10-20 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker |
| CN106783438A (en) * | 2016-12-01 | 2017-05-31 | 上海电器科学研究所（集团）有限公司 | A kind of releasing structure of optimization |
| CN111785580A (en) * | 2020-07-07 | 2020-10-16 | 浙江正泰电器股份有限公司 | load break switch |
| CN113745068B (en) * | 2021-08-05 | 2023-11-24 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
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| EP1170769A1 (en) * | 2000-10-19 | 2002-01-09 | Hager Electro S.A. | Snap closing mechanism for modular circuit breaker |
| CN201622985U (en) * | 2010-01-12 | 2010-11-03 | 温州波普电气有限公司 | Miniature circuit breaker |
| CN102426999A (en) * | 2011-09-13 | 2012-04-25 | 浙江正泰电器股份有限公司 | Operating mechanism of modularized breaker |
| CN203013649U (en) * | 2012-12-20 | 2013-06-19 | 李敏 | Operating mechanism of circuit breaker and circuit breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20011675A1 (en) * | 2001-08-01 | 2003-02-01 | Abb Service Srl | SWITCH FOR A LOW VOLTAGE ELECTRIC CIRCUIT |
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2012
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1170769A1 (en) * | 2000-10-19 | 2002-01-09 | Hager Electro S.A. | Snap closing mechanism for modular circuit breaker |
| CN201622985U (en) * | 2010-01-12 | 2010-11-03 | 温州波普电气有限公司 | Miniature circuit breaker |
| CN102426999A (en) * | 2011-09-13 | 2012-04-25 | 浙江正泰电器股份有限公司 | Operating mechanism of modularized breaker |
| CN203013649U (en) * | 2012-12-20 | 2013-06-19 | 李敏 | Operating mechanism of circuit breaker and circuit breaker |
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| CN103050342A (en) | 2013-04-17 |
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Effective date of registration: 20240522 Address after: No. 39 Industrial Avenue, Industrial Park, Yifeng County, Yichun City, Jiangxi Province, 336300 Patentee after: Jiangxi Liangchuang Economic and Trade Development Co.,Ltd. Country or region after: China Address before: Room 302, Unit 1, Building 1, No.1 Chengxi Road, Xinchang Town, Yifeng County, Yichun City, Jiangxi Province, 336300 Patentee before: Li Min Country or region before: China |