CN103050342A - Circuit breaker operation mechanism and circuit breaker - Google Patents
Circuit breaker operation mechanism and circuit breaker Download PDFInfo
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- CN103050342A CN103050342A CN2012105589795A CN201210558979A CN103050342A CN 103050342 A CN103050342 A CN 103050342A CN 2012105589795 A CN2012105589795 A CN 2012105589795A CN 201210558979 A CN201210558979 A CN 201210558979A CN 103050342 A CN103050342 A CN 103050342A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 60
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 6
- 208000012868 Overgrowth Diseases 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 230000005520 electrodynamics Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 230000005405 multipole Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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 relatively poor in the Width symmetry of product, cause product poor in temperature rise stability, and mechanical electric life-span and short circuit breaking capacity descend; The mechanical spring of product is stage clip, and stage clip is crooked easily when closed, and the responsiveness of product construction is subject to severely restricts, and unstable; One end of snap close back-moving spring torsion spring is the bending feature, and the power value is unstable, causes easily the product construction return unstable, affects the mechanism stable of product.Cause easily the product mechanical electric life-span to descend, and the linkage of multipole product descend.
Summary of the invention
The technical problem to be solved in the present invention is, for the defects 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 the described contact supporter, described contact supporter one epitaxial lateral overgrowth is stretched cylindrical projection is arranged, along offering limited impression on the short transverse of described cylindrical projection, be provided with the barrier sheet in the described limited impression; Described moving contact is provided with installing hole, described installing hole edge is provided with the spacing preiection that is complementary with described limited impression shape, described moving contact is set on the described cylindrical projection by described installing hole, and described spacing preiection and described limited impression are chimeric and be positioned at a side of described barrier sheet.
Circuit breaker operation mechanism of the present invention, wherein, described limited impression is the limited impression of V-arrangement, described spacing preiection is the spacing preiection of V-arrangement.
Circuit breaker operation mechanism of the present invention, wherein, described contact supporter top also is provided with the installation groove, and a side of described contact supporter, the next door 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 of described round platform and fit, and are resisted against on the described round platform.
Circuit breaker operation mechanism of the present invention, wherein, described latching device comprises snap close and the tripping that is arranged on rotationally on the described contact supporter, described snap close is provided with extension section, described tripping is provided with the hook part that cooperates with described extension section, and described snap close cooperates by described extension section 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 installed on the described erection column, and an 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 terminal bending.
Circuit breaker operation mechanism of the present invention, wherein, the length that described snap close back-moving spring is resisted against described the first boss one end is greater than the length that is resisted against described the second boss one end.
Circuit breaker operation mechanism of the present invention, wherein, the offside that described cylinder boss one side is installed on the described contact supporter also offers be used to the hole of avoiding mould core pulling.
Another program that the present invention solves its technical problem employing is: construct a kind of circuit breaker, comprise shell, rotationally be arranged on handle on the described shell, be arranged on arc sheet in the described shell, be arranged on fixed contact in the described shell, be arranged on leading the arc plate, be arranged on the described electromagnet coil of leading the arc control device of arc plate one side and being arranged on described arc control device top in the space that is surrounded by described arc sheet by the fixed contact supporter
Also comprise circuit breaker operation mechanism as described above, described handle one end is hinged with connecting rod, and an 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, have following beneficial effect: the chimeric of the spacing preiection in the limited impression on the contact supporter and the moving contact installing hole can be at Z direction location moving contact, can avoid moving contact to reverse and causes the unstable and contact resistance of contact resistance to raise.Especially avoid multipole product under electrodynamic action, produce electrodynamic repulsion force between the contact, cause contact seriously to reverse, and the phenomenon that electric life and short-circuit protection ability are obviously descended.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the 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 the 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, common and handle 100 interlocks of this circuit breaker operation mechanism, particularly, also be hinged with connecting rod 105 on the handle 100, 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, and moving contact 103 motions that drive in the contact system realize connecting and disjunction.Shown in Fig. 2-4, contact supporter 101 1 epitaxial lateral overgrowths are stretched cylindrical projection 106, along offering limited impression 107 on the short transverse of this cylindrical projection 106, is provided with barrier sheet 108 in the 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 that is complementary with limited impression 107 shapes, moving contact 103 is set on the cylindrical projection 106 by installing hole 109, and spacing preiection 110 and limited impression 107 are chimeric and be positioned at a side of barrier sheet 108.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, produce electrodynamic repulsion force between the contact, cause contact seriously to reverse, and the phenomenon that electric life and short-circuit protection ability are obviously descended.
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, limited impression 107 is the limited impression of V-arrangement, and correspondingly, spacing preiection 110 is the spacing preiection of V-arrangement.Understandable, also can be the limited impression of other shapes.In addition, as shown in Figure 5, also be provided with the structure of a rectangle on installing hole 109 right sides of moving contact 103, this rectangular configuration is to weld the usefulness that is flexible coupling, and adopts bending and molding, after the other end of being convenient to be flexible coupling welds on the bimetal leaf, and bimetallic free movement.
As shown in Figure 4, contact supporter 101 tops also are provided with installs groove 111, is provided with round platform 112 on a side of contact supporter 101, the next door of installation groove 111; 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, fitting with the side that contact supporter 101 is provided with round platform 112 in extension 114, and is resisted against on the 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 the long-armed bending structure that is in same plane or Different Plane of bending segment 113 and the extension spring that links to each other with bending segment 113, twice or bending structure repeatedly, and be understandable that the planform of the position of the round platform 112 of this moment or installation groove 111 should be made accommodation.This structure is swift in motion so that the power value of mechanism's spring 104 is more stable, 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 that is arranged on rotationally on the contact supporter 101, and wherein, an end and the tripping 116 of above-mentioned connecting rod 105 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 section 117, and as shown in Figure 8, tripping 116 is provided with the hook part 118 that cooperates with extension section 117, and snap close 115 cooperates by extension section 117 and hook part 118 hookings with tripping 116.The effect of latching device is when there is the signal of overcurrent fault or other No switching on orders in the loop, even 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 the loop exists overcurrent or short trouble and when sending the 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 installed on the erection column 119, and an 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 among the figure), the second boss 121 is provided with the second stopper slot (not illustrating with label among the 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.This structure so that snap close back-moving spring 102 to be resisted against the force direction that the end in the second stopper slot applies more consistent with the snap close direction of rotation, so the actuating force that snap close resets is also just more stable.Thereby Effective Raise 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 terminal bending.As shown in Figure 9, snap close back-moving spring 102 length that is resisted against the first boss 120 1 ends is greater than the length that is resisted against the second boss 121 1 ends.
As shown in Figure 2, the offside that cylinder boss 106 1 sides is installed on the contact supporter 101 also offers be used to the hole 122 of avoiding 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 the shell 200, be arranged on the arc sheet 201 in the shell 200, be arranged on fixed contact 202 in the shell 200 by fixed contact supporter 203, be arranged on and lead arc plate 204 in the space that is 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 1 ends are hinged with connecting rod 105, and an 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 only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present invention and accordingly enforcement, can not limit protection scope of the present invention.All equalizations of doing with claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (10)
1. a circuit breaker operation mechanism comprises contact supporter (101), is arranged on latching device, snap close back-moving spring (102), moving contact (103) and mechanism's spring (104) on the described contact supporter (101), it is characterized in that,
Described contact supporter (101) one epitaxial lateral overgrowths are stretched and cylindrical projection are arranged (106), along offering limited impression (107) on the short transverse of described cylindrical projection (106), are provided with barrier sheet (108) in the described limited impression (107); Described moving contact (103) is provided with installing hole (109), described installing hole (109) edge is provided with the spacing preiection (110) that is complementary with described limited impression (107) shape, described moving contact (103) is set on the described cylindrical projection (106) by described installing hole (109), and described spacing preiection (110) and described limited impression (107) are chimeric and be positioned at a side of described barrier sheet (108).
2. circuit breaker operation mechanism according to claim 1 is characterized in that, described limited impression (107) is the limited impression of V-arrangement, and described spacing preiection (110) is the spacing preiection of V-arrangement.
3. circuit breaker operation mechanism according to claim 1, it is characterized in that, described contact supporter (101) top also is provided with installs groove (111), and the next door 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), fitting with the side that described contact supporter (101) is provided with described round platform (112) in described extension (114), and is resisted against on the 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) that is arranged on rotationally on the described contact supporter (101), described snap close (115) is provided with extension section (117), described tripping (116) is provided with the hook part (118) that cooperates with described extension section (117), and described snap close (115) cooperates by described extension section (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); Described snap close back-moving spring (102) is installed on the described erection column (119), and an end is resisted against on 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 terminal 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 ends is greater than the length that is resisted against described the second boss (121) one ends.
9. each described circuit breaker operation mechanism is characterized in that according to claim 1-8, and the offside that described cylinder boss (106) one sides are installed on the described contact supporter (101) also offers be used to the hole of avoiding mould core pulling (122).
10. circuit breaker, comprise shell, rotationally be arranged on handle on the described shell, be arranged on arc sheet in the described shell, be arranged on fixed contact in the described shell, be arranged on leading the arc plate, be arranged on the described electromagnet coil of leading the arc control device of arc plate one side and being arranged on described arc control device top in the space that is surrounded by described arc sheet by the fixed contact supporter, it is characterized in that
Also comprise each described circuit breaker operation mechanism such as claim 1-9, described handle one end is hinged with connecting rod, and an 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 |
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| 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 true CN103050342A (en) | 2013-04-17 |
| CN103050342B 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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Cited By (6)
| 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 |
| CN103500690A (en) * | 2013-09-30 | 2014-01-08 | 长城电器集团有限公司 | Energy storage device of circuit breaker |
| CN103545150A (en) * | 2013-09-27 | 2014-01-29 | 浙江大华开关厂 | Breaker operating mechanism |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized 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 |
| CN113745068A (en) * | 2021-08-05 | 2021-12-03 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
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| 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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Patent Citations (5)
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| EP1170769A1 (en) * | 2000-10-19 | 2002-01-09 | Hager Electro S.A. | Snap closing mechanism for modular circuit breaker |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103413732A (en) * | 2013-08-29 | 2013-11-27 | 温州罗格朗电器有限公司 | Operating mechanism of breaker |
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| CN103500690A (en) * | 2013-09-30 | 2014-01-08 | 长城电器集团有限公司 | Energy storage device of circuit breaker |
| 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 |
| CN105914110A (en) * | 2016-06-20 | 2016-08-31 | 浙江天正电气股份有限公司 | Small-sized 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 |
| CN113745068A (en) * | 2021-08-05 | 2021-12-03 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
| CN113745068B (en) * | 2021-08-05 | 2023-11-24 | 杭州泰姆电气有限公司 | Operating mechanism of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103050342B (en) | 2014-10-15 |
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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 |