CN105914110A - Small-sized circuit breaker - Google Patents
Small-sized circuit breaker Download PDFInfo
- Publication number
- CN105914110A CN105914110A CN201610438281.8A CN201610438281A CN105914110A CN 105914110 A CN105914110 A CN 105914110A CN 201610438281 A CN201610438281 A CN 201610438281A CN 105914110 A CN105914110 A CN 105914110A
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- contact
- arc
- miniature circuit
- armature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
Abstract
A small-sized circuit breaker is disclosed and mainly solves a problem that a clapper type tripping mechanism of a conventional circuit breaker is not quick enough in breaking. The invention provides a small-sized circuit breaker; an arc extinguishing mechanism, a tripping mechanism and a contact head mechanism are arranged in a shell body of the small-sized circuit breaker; the tripping mechanism comprises a contact head support part and a tripping device that are correspondingly arranged, a jump fastener and a locking fastener that are correspondingly arranged are hinged on the contact head support part, the contact head mechanism comprises a static contact head and a moving contact head which is hinged onto the contact head support part, and the locking fastener has a first position for switch-on and a second position where the moving contact head is driven to separate from the static contact head under effects of the tripping device during switch-off time. When the circuit breaker is disconnected, the tripping device drives the locking fastener to move, the locking fastener hits the moving contact head, and therefore breaking speed of the circuit breaker can be improved. The small-sized circuit breaker is simple in structure and quick in breaking, and cost is lowered.
Description
Technical field
The present invention relates to field of circuit breakers, be specially a kind of miniature circuit breaker.
Background technology
Breaker has structure advanced person, dependable performance, the breaking capacity feature such as small and exquisite strong, aesthetic in appearance; overload and the short-circuit protection of making illumination, distribution line and the equipment of office building, house and similar building are used, and can act also as circuit infrequently make-break operation and are used with conversion.
The inside of present breaker is designed with arc-extinguishing mechanism, tripping mechanism and contact mechanism etc., and the clapper-type tripping mechanism disjunction of present breaker is the quickest.
Summary of the invention
In order to overcome the deficiency of background technology, the present invention provides a kind of miniature circuit breaker, mainly solves the clapper-type tripping mechanism disjunction not quickly problem of present breaker.
The technical solution adopted in the present invention is:
A kind of miniature circuit breaker, including housing, arc-extinguishing mechanism, tripping mechanism and contact mechanism it is provided with in being provided with in described housing, described tripping mechanism includes contact support and the electrical apparatus release being correspondingly arranged, the tripping and snap close being correspondingly arranged it is hinged with in described contact support, described contact mechanism include static contact and be articulated with described contact support moving contact, described snap close include close a floodgate time primary importance with promote described moving contact to make its second place separated with described static contact during separating brake under the effect of described electrical apparatus release.
Described electrical apparatus release includes yoke, armature that is that described yoke is provided with movable cooperation and that be correspondingly arranged with described snap close, described yoke also includes the contact chip being correspondingly arranged with described armature, described armature is provided with elastic preload piece, is additionally provided with for regulating the adjusting part in gap between described armature and described contact chip in described housing.
Described adjusting part includes that corresponding tilt is arranged on the fixing seat above described armature, and described fixing seat bottom portion is provided with at least two regulating tank, is removably connected with limit shaft at least one described regulating tank, compresses with described armature and coordinate bottom described limit shaft.
Described elastic preload piece is extension spring.
Described yoke includes that L-shaped frame, described L-shaped frame include that platform and pillar, described armature include that projection, described projection middle-end are provided with opening, and described projection compresses with described platform and coordinates, and described pillar is located in described opening.
Also including quiet contact plate, described extension spring two ends connect respectively at described quiet contact plate and described armature.
Described arc-extinguishing mechanism includes that arc-extinguish chamber, described arc-extinguish chamber include the arc extinguishing grid pieces that some compartments are uniform, is provided with some limited blocks in described housing, and described limited block is located between adjacent two described arc extinguishing grid pieces.
Described housing bottom and described arc-extinguish chamber are provided with the surge chamber being in communication with the outside, and be provided with retaining wall, described retaining wall is tiltedly installed with groove to described surge chamber direction between described arc-extinguish chamber and described surge chamber.
Described quiet contact plate one end is provided with striking hook, is correspondingly provided with extended end with described striking hook bottom described yoke.
Described snap close is provided with the pushing part for promoting described moving contact.
The invention has the beneficial effects as follows: the present invention provides a kind of miniature circuit breaker, arc-extinguishing mechanism, tripping mechanism and contact mechanism it is provided with in being provided with in its housing, tripping mechanism includes contact support and the electrical apparatus release being correspondingly arranged, the tripping being correspondingly arranged and snap close it is hinged with in contact support, contact mechanism include static contact and be articulated with contact support moving contact, snap close include close a floodgate time primary importance with during separating brake under the effect of electrical apparatus release promote moving contact make its second place separated with static contact.The when of this breaker open operation, electrical apparatus release promotes snap close action, and snap close is beaten and made its faster disjunction on moving contact, simple in construction, and disjunction rapidly and reduces cost.
Accompanying drawing explanation
Fig. 1 is the schematic internal view of one embodiment of the invention.
Fig. 2 is enlarged drawing at Figure 1A.
Fig. 3 is the second place schematic diagram of the snap close of one embodiment of the invention.
Fig. 4 is Figure 1B enlarged drawing.
Fig. 5 is the three-dimensional partial schematic diagram of one embodiment of the invention.
Fig. 6 is the three-dimensional partial schematic diagram of one embodiment of the invention.
Fig. 7 is the schematic perspective view of the yoke of one embodiment of the invention.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings: as shown in the figure, a kind of miniature circuit breaker, including housing 1, it is provided with arc-extinguishing mechanism in being provided with in described housing 1, tripping mechanism and contact mechanism, described tripping mechanism includes contact support 2 and the electrical apparatus release 3 being correspondingly arranged, the tripping 21 being correspondingly arranged and snap close 22 it is hinged with in described contact support 2, described contact mechanism includes static contact 24 and is articulated with the moving contact 23 of described contact support 2, described snap close 22 includes promoting described moving contact 23 to make its second place separated with described static contact 24 under the effect of described electrical apparatus release 3 when primary importance when closing a floodgate and separating brake.Snap close and contact are supported hinged and are provided with torsion spring, moving contact and contact support hinged and to be provided with torsion spring be prior art, do not repeating, breaker open operation when, electrical apparatus release promotes snap close to rotate, snap close separates with the tripping being engaged simultaneously, beat under the promotion of electrical apparatus release active force on moving contact, accelerate the disjunction of moving contact and static contact, the present invention provides a kind of miniature circuit breaker, it is provided with arc-extinguishing mechanism in being provided with in its housing, tripping mechanism and contact mechanism, tripping mechanism includes contact support and the electrical apparatus release being correspondingly arranged, the tripping being correspondingly arranged and snap close it is hinged with in contact support, contact mechanism includes static contact and is articulated with the moving contact that contact is supported, snap close include close a floodgate time primary importance with during separating brake under the effect of electrical apparatus release promote moving contact make its second place separated with static contact.The when of this breaker open operation, electrical apparatus release promotes snap close action, and snap close is beaten and made its faster disjunction, simple in construction on moving contact, and disjunction is rapid.
In the present embodiment, as shown in the figure, described electrical apparatus release 3 includes yoke 31, armature 32 that is that described yoke 31 is provided with movable cooperation and that be correspondingly arranged with described snap close 22, described yoke 31 also includes the contact chip 33 being correspondingly arranged with described armature 32, described armature 32 is provided with elastic preload piece 34, is additionally provided with for regulating the adjusting part in gap between described armature 32 and described contact chip 33 in described housing 1.Regulate the air gap between armature and yoke by adjusting part, and then electromagnetic force initial size can be affected, be used for adjusting the instantaneous size of current adjusted, adjusted the product that can realize different dropout types by air gap.
In the present embodiment, as shown in the figure, described adjusting part includes that corresponding tilt is arranged on the fixing seat 41 above described armature 32, it is provided with at least two regulating tank 42 bottom described fixing seat 41, it is removably connected with limit shaft 43 at least one described regulating tank 42, compresses with described armature 32 bottom described limit shaft 43 and coordinate.By the air gap regulating between armature and contact chip in limit shaft is arranged on different regulating tanks, simple in construction, easy to use.
In the present embodiment, as it can be seen, described elastic preload piece 34 is extension spring.May be otherwise the elastic component using other, such as disc spring, shell fragment etc., extension spring is that preferably cost is relatively low, it is simple to obtain.
In the present embodiment, as shown in the figure, described yoke 31 includes L-shaped frame 35, described L-shaped frame 35 includes platform 351 and pillar 352, described armature 32 includes projection 321, described projection 321 middle-end is provided with opening 322, and described projection 321 compresses with described platform 351 and coordinates, and described pillar 352 is located in described opening 322.The most hinged structure, the application simple in construction, easy to assembly, only projection need to be placed on platform, just can realize movable cooperation in then pillar is arranged on gap, then realize pretension by extension spring, separating brake when, under the effect of magnetic pull, armature is the most movable, and then promotes snap close separating brake.
In the present embodiment, as it can be seen, also include quiet contact plate 51, described extension spring two ends connect respectively at described quiet contact plate 51 and described armature 32.Simple in construction, using effect is good.
In the present embodiment, as it can be seen, described arc-extinguishing mechanism includes that arc-extinguish chamber 6, described arc-extinguish chamber 6 include the arc extinguishing grid pieces 61 that some compartments are uniform, being provided with some limited blocks 13 in described housing 1, described limited block 13 is located between adjacent two described arc extinguishing grid pieces 61.The when that arc-extinguish chamber being placed in housing, arc extinguishing grid pieces can be carried out spacing by limited block, so realize arc-extinguish chamber spacing, prevent electric arc from destroying arc-chutes in each grid motion process, be conducive to the carrying out that the most repeatedly disjunction is tested.
In the present embodiment, as shown in the figure, it is provided with, with described arc-extinguish chamber 6, the surge chamber 14 being in communication with the outside bottom described housing 1, between described arc-extinguish chamber 6 and described surge chamber 14, is provided with retaining wall 15, described retaining wall 15 is tiltedly installed with groove 151 to described surge chamber 14 direction.The groove being obliquely installed prevents gas reflection meeting arc-chutes, and arc quenching effect is more preferable.
In the present embodiment, as it can be seen, described quiet contact plate 51 one end is provided with striking hook 511, bottom described yoke 31, it is correspondingly provided with extended end 311 with described striking hook 511.Elongating arc increases burning voltage, increases arc quenching effect.
In the present embodiment, as it can be seen, described snap close 22 is provided with the pushing part 225 for promoting described moving contact 23.
Embodiment is not construed as limitation of the present invention, but any spiritual improvements introduced based on the present invention, all should be within protection scope of the present invention.
Claims (10)
1. a miniature circuit breaker, including housing (1), it is provided with arc-extinguishing mechanism in being provided with in described housing (1), tripping mechanism and contact mechanism, described tripping mechanism includes contact support (2) and the electrical apparatus release (3) being correspondingly arranged, the tripping (21) being correspondingly arranged and snap close (22) it is hinged with on described contact support (2), described contact mechanism includes static contact (24) and is articulated with the moving contact (23) of described contact support (2), it is characterized in that: described snap close (22) includes promoting described moving contact (23) to make its second place separated with described static contact (24) under the effect of described electrical apparatus release (3) when primary importance when closing a floodgate and separating brake.
A kind of miniature circuit breaker the most according to claim 1, it is characterized in that: described electrical apparatus release (3) includes yoke (31), armature (32) that is that described yoke (31) is provided with movable cooperation and that be correspondingly arranged with described snap close (22), described yoke (31) also includes the contact chip (33) being correspondingly arranged with described armature (32), described armature (32) is provided with elastic preload piece (34), is additionally provided with for regulating the adjusting part in gap between described armature (32) and described contact chip (33) in described housing (1).
A kind of miniature circuit breaker the most according to claim 2, it is characterized in that: described adjusting part includes that corresponding tilt is arranged on the fixing seat (41) of described armature (32) top, described fixing seat (41) bottom is provided with at least two regulating tank (42), being removably connected with limit shaft (43) at least one described regulating tank (42), described limit shaft (43) bottom compresses with described armature (32) and coordinates.
A kind of miniature circuit breaker the most according to claim 2, it is characterised in that: described elastic preload piece (34) is extension spring.
A kind of miniature circuit breaker the most according to claim 2, it is characterized in that: described yoke (31) includes L-shaped frame (35), described L-shaped frame (35) includes platform (351) and pillar (352), described armature (32) includes projection (321), described projection (321) middle-end is provided with opening (322), described projection (321) compresses with described platform (351) and coordinates, and described pillar (352) is located in described opening (322).
A kind of miniature circuit breaker the most according to claim 4, it is characterised in that: also including quiet contact plate (51), described extension spring two ends connect respectively at described quiet contact plate (51) and described armature (32).
A kind of miniature circuit breaker the most according to claim 1, it is characterized in that: described arc-extinguishing mechanism includes arc-extinguish chamber (6), described arc-extinguish chamber (6) includes the arc extinguishing grid pieces (61) that some compartments are uniform, being provided with some limited blocks (13) in described housing (1), described limited block (13) is located between adjacent two described arc extinguishing grid pieces (61).
A kind of miniature circuit breaker the most according to claim 7, it is characterized in that: described housing (1) bottom is provided with, with described arc-extinguish chamber (6), the surge chamber (14) being in communication with the outside, it is provided with retaining wall (15) between described arc-extinguish chamber (6) and described surge chamber (14), described retaining wall (15) is tiltedly installed with groove (151) to described surge chamber (14) direction.
A kind of miniature circuit breaker the most according to claim 6, it is characterised in that: described quiet contact plate (51) one end is provided with striking hook (511), and described yoke (31) bottom is correspondingly provided with extended end (311) with described striking hook (511).
A kind of miniature circuit breaker the most according to claim 1, it is characterised in that: described snap close (22) is provided with the pushing part (225) for promoting described moving contact (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438281.8A CN105914110B (en) | 2016-06-20 | 2016-06-20 | A kind of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610438281.8A CN105914110B (en) | 2016-06-20 | 2016-06-20 | A kind of miniature circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105914110A true CN105914110A (en) | 2016-08-31 |
| CN105914110B CN105914110B (en) | 2017-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610438281.8A Active CN105914110B (en) | 2016-06-20 | 2016-06-20 | A kind of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105914110B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
| CN108054059A (en) * | 2017-12-28 | 2018-05-18 | 温州市新蓝天电器有限公司 | A kind of breaker with separation type lock buckle tripping device |
| CN108109886A (en) * | 2018-01-18 | 2018-06-01 | 温州奥来电器有限公司 | A kind of breaker |
| CN108288570A (en) * | 2017-12-22 | 2018-07-17 | 上海诺雅克电气有限公司 | The trip gear of breaker |
| CN108565191A (en) * | 2018-05-16 | 2018-09-21 | 宏秀电气有限公司 | A kind of electromagnetic release mechanism of miniature circuit breaker |
| CN114360977A (en) * | 2022-03-10 | 2022-04-15 | 东莞市中汇瑞德电子股份有限公司 | Circuit breaker capable of being remotely controlled |
| CN108109886B (en) * | 2018-01-18 | 2024-04-26 | 温州奥来电器有限公司 | Circuit breaker |
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| US20060001511A1 (en) * | 2004-07-05 | 2006-01-05 | Abb Schweiz Ag | Moving contact unit for a contact arrangement in a circuit breaker |
| CN2777745Y (en) * | 2004-07-26 | 2006-05-03 | 浙江德力西电器股份有限公司 | Operating mechanism for small circuit breaker |
| CN101231926A (en) * | 2008-02-21 | 2008-07-30 | 江苏西蒙智控设备有限公司 | Actuating mechanism of small size circuit breaker |
| CN101587802A (en) * | 2009-06-18 | 2009-11-25 | 德力西电气有限公司 | Rapid-releasing breaker |
| CN101699609A (en) * | 2009-10-23 | 2010-04-28 | 江苏辉能电气有限公司 | Electromagnetic tripping device of low-voltage circuit breaker |
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| CN104867790A (en) * | 2014-02-21 | 2015-08-26 | 西门子公司 | Magnetic tripping device and overcurrent tripping device of an electrical switch and electrical switch and method for calibrating the magnetic tripping of a magnetic tripping device |
| CN104934270A (en) * | 2015-06-26 | 2015-09-23 | 温州罗格朗电器有限公司 | Circuit breaker |
| CN204946839U (en) * | 2015-09-18 | 2016-01-06 | 杭州之江开关股份有限公司 | A kind of release electromagnet device being easy to adjustment setting current |
| CN205723392U (en) * | 2016-06-20 | 2016-11-23 | 浙江天正电气股份有限公司 | A kind of miniature circuit breaker of quick disjunction |
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2016
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Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4001743A (en) * | 1974-05-14 | 1977-01-04 | Firma Heinrich Kopp, Inhaber Theodor Simoneit | Heavy duty automatic circuit breaker |
| US20060001511A1 (en) * | 2004-07-05 | 2006-01-05 | Abb Schweiz Ag | Moving contact unit for a contact arrangement in a circuit breaker |
| CN2777745Y (en) * | 2004-07-26 | 2006-05-03 | 浙江德力西电器股份有限公司 | Operating mechanism for small circuit breaker |
| CN101231926A (en) * | 2008-02-21 | 2008-07-30 | 江苏西蒙智控设备有限公司 | Actuating mechanism of small size circuit breaker |
| CN101587802A (en) * | 2009-06-18 | 2009-11-25 | 德力西电气有限公司 | Rapid-releasing breaker |
| CN101699609A (en) * | 2009-10-23 | 2010-04-28 | 江苏辉能电气有限公司 | Electromagnetic tripping device of low-voltage circuit breaker |
| CN103050342A (en) * | 2012-12-20 | 2013-04-17 | 李敏 | Circuit breaker operation mechanism and circuit breaker |
| CN104867790A (en) * | 2014-02-21 | 2015-08-26 | 西门子公司 | Magnetic tripping device and overcurrent tripping device of an electrical switch and electrical switch and method for calibrating the magnetic tripping of a magnetic tripping device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107833813A (en) * | 2017-12-11 | 2018-03-23 | 宏秀电气有限公司 | A kind of Anti-surging breaker |
| CN108288570A (en) * | 2017-12-22 | 2018-07-17 | 上海诺雅克电气有限公司 | The trip gear of breaker |
| CN108288570B (en) * | 2017-12-22 | 2024-02-13 | 上海诺雅克电气有限公司 | Tripping device of circuit breaker |
| CN108054059A (en) * | 2017-12-28 | 2018-05-18 | 温州市新蓝天电器有限公司 | A kind of breaker with separation type lock buckle tripping device |
| CN108109886A (en) * | 2018-01-18 | 2018-06-01 | 温州奥来电器有限公司 | A kind of breaker |
| CN108109886B (en) * | 2018-01-18 | 2024-04-26 | 温州奥来电器有限公司 | Circuit breaker |
| CN108565191A (en) * | 2018-05-16 | 2018-09-21 | 宏秀电气有限公司 | A kind of electromagnetic release mechanism of miniature circuit breaker |
| CN108565191B (en) * | 2018-05-16 | 2024-04-02 | 宏秀电气有限公司 | Electromagnetic tripping mechanism of miniature circuit breaker |
| CN114360977A (en) * | 2022-03-10 | 2022-04-15 | 东莞市中汇瑞德电子股份有限公司 | Circuit breaker capable of being remotely controlled |
| CN114360977B (en) * | 2022-03-10 | 2022-07-05 | 东莞市中汇瑞德电子股份有限公司 | Circuit breaker capable of being remotely controlled |
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|---|---|
| CN105914110B (en) | 2017-10-20 |
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