CN102110553B - Operating mechanism of selective protection switch - Google Patents
Operating mechanism of selective protection switch Download PDFInfo
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- CN102110553B CN102110553B CN 201110053641 CN201110053641A CN102110553B CN 102110553 B CN102110553 B CN 102110553B CN 201110053641 CN201110053641 CN 201110053641 CN 201110053641 A CN201110053641 A CN 201110053641A CN 102110553 B CN102110553 B CN 102110553B
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- tripping
- snap close
- operating mechanism
- protection switch
- connecting rod
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Abstract
The invention discloses an operating mechanism of a selective protection switch. The operating mechanism comprises a base, a knife switch and a contact mechanism which are assembled on the base and can rotate, a linkage connecting the knife switch with the contact mechanism, a spring assembled between the contact mechanism and the base and a jumping pin device installed on the base and used for driving the linkage to act. The operating mechanism is characterized in that the jumping pin device comprises a first jumping pin and a second jumping pin which are coaxially pivoted on the base; the first jumping pin is provided with an extension part used for interfering with the second jumping pin and driving the second jumping pin to rotate; at the same time, a torsion spring interfering with the first jumping pin to rotate is assembled on a pivot; the operating mechanism also comprises a latch linked with the linkage; and the first jumping pin and the latch interfere with each other to ensure the linkage not to act. The operating mechanism has the following advantages: the operating mechanism has the function of alarming without opening under the condition of thermal overload and can better protect the personnel and equipment in the distribution system.
Description
Technical field
The invention belongs to Low Voltage Electrical Apparatus, particularly a kind of selective protection switch operating mechanism.
Background technology
At present, along with the development of architectural electricity and building automation, it is more and more that selective protection switch is used, and this type of switch can well solve distribution terminal overstep tripping phenomenon, has improved greatly the stability of distribution system.This type of switch can all can be seen in the patent documentations such as Chinese patent CN200810032610.4, CN200810032609.1, it is comprised of Switch main body and alarm module two parts usually, wherein Switch main body is usually again by the main circuit current release, subsidiary loop current-release device, main contact, auxiliary contact, operating mechanism, electromagnetic system, arc quenching system form, operating mechanism is the core institution of this class switch, is determining the practical function of combined floodgate, tripping operation.Existing operating mechanism is usually all simultaneously trigger alarm and separating brake actions in the situation of distribution system thermal overload; only the distribution system thermal overload is just implemented sub-switching operation cutting system power supply; this has caused inconvenience to practice, reports to the police in system's thermal overload situation but non-shut-brake such as the switch that often just needs protection at particular places such as fire-fightings.In the prior art, have the non-shut-brake selective protection switch of thermal overload warning and have no any bibliographical information, Related product also has no appearance simultaneously.
Summary of the invention
The present invention seeks to: a kind of report to the police selective protection switch operating mechanism of non-shut-brake function of thermal overload that has is provided.
Technical scheme of the present invention is: a kind of selective protection switch operating mechanism, comprise pedestal, be assemblied on the pedestal and rotating plug-in strip and contact mechanism, the linkage that connects plug-in strip and contact mechanism is assemblied in the spring between contact mechanism and pedestal and is installed in the tripping device that also is used for the drive link mechanism action on the pedestal; It is characterized in that described tripping device comprises coaxial the first tripping and the second tripping that is articulated on the pedestal, described the first tripping is provided with for interfering and driving the extension that the second tripping is rotated, and is equipped with the torsion spring of interfering the first tripping to be rotated on the pivot simultaneously; Also comprise the snap close with linkage interlock, during "on" position, described the first tripping and snap close interference so that linkage be failure to actuate; Wherein said the second tripping is driven by the major loop overcurrent trip in the selective protection switch, and the alarm module trip gear of triggering selection protection switch, and described the first tripping is driven by the subsidiary loop current-release device in the selective protection switch.
Further, linkage described in the present invention comprises first connecting rod and second connecting rod, wherein said first connecting rod one end articulates by the first coupling spindle and plug-in strip, the other end articulates by an end of the second coupling spindle and second connecting rod, and the other end of second connecting rod then articulates by the drive rod in the 3rd coupling spindle and the contact mechanism; Have crescent on the described snap close, above-mentioned the second coupling spindle is assemblied in the described crescent simultaneously; During "on" position, the clinch of described the first tripping and snap close offsets, so that the spring stretching, and the second coupling spindle terminates in crescent one end.
Further, described in the present invention in the first tripping the clinch relative with snap close be provided with a groove, the clinch of described snap close one end is wedge shape and the end can be supported in the described groove.
More preferred, also be provided with the beating part that is positioned at clinch one side described in the present invention on the snap close, when described snap close and the first tripping broke away from, described beating part can interfere and drive the first tripping and rotate.This is beneficial to the complete release of the first tripping and snap close so that snap close has possessed the function that again promotes the first tripping action when itself and the first tripping released state.
The major loop overcurrent trip that relates in the main technical schemes of the present invention, alarm module trip gear and subsidiary loop current-release device are prior art.
Operation principle of the present invention is as follows: when overload current occurring in the distribution system, the major loop overcurrent trip acts on the second tripping, rotate after the second tripping is stressed, and drive alarm module trip gear, make its action and send alarm signal, the first tripping this moment is motionless, keeps snap close to be in locking state, linkage is failure to actuate, and makes switch keep closing a floodgate not trip status.When short circuit in the distribution system occurs, large electric current excites the action of subsidiary loop current-release device, acted on again the first tripping of operating mechanism by subsidiary loop current-release device, rotate after making the first tripping stressed, because the snap close of operating mechanism is untied in the rotation of the first tripping, snap close rotates the drivening rod mechanism action, makes the switch separating brake, the contact mechanism action; The meanwhile rotation of the first tripping drives the rotation of the second tripping, and the rotation of the second tripping drives the action of alarm module trip gear and sends alarm signal, this alarm of switch and separating brake.
Among the present invention the first tripping and the second tripping are designed to coaxial rotation, and it is motionless to be designed to when the second tripping rotates the first tripping, and the first tripping can drive the second tripping when rotating and rotates, so that the independent trigger alarm signal of the second tripping.And snap close only with the first tripping relation of occur pinning, snap close promotes the function of the first tripping again with when snap close and the first tripping released state simultaneously, is beneficial to the complete release of the first tripping and snap close.
Advantage of the present invention is:
1. this selective protection switch operating mechanism provided by the invention, it has the thermal overload non-shut-brake function of reporting to the police, so when the distribution system thermal overload, can alarm signal be sent, notifies the maintenance personal to check circuit, but does not affect the electricity consumption of special occasions; And when distribution system is short-circuited fault, the switch separating brake is cut off the electricity supply, send simultaneously alarm signal, the safety of protection personnel and equipment.
2. this selective protection switch operating mechanism provided by the invention, it is simple in structure, and dependable performance has very strong practicality.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is perspective view of the present invention;
Fig. 2 is the assembling schematic diagram of the first tripping and the second tripping among the present invention;
Fig. 3 is the structural representation of gate-dividing state of the present invention;
Fig. 4 is the structural representation of "on" position of the present invention;
Fig. 5 is the structure cutaway view of "on" position of the present invention;
Fig. 6 is tripping and snap fit schematic diagram under the "on" position of the present invention.
Wherein: 1, pedestal; 2, plug-in strip; 3, contact mechanism; 4, spring; 5, the first tripping; 5a, extension; 5b, groove; 6, the second tripping; 7, pivot; 8, torsion spring; 9, snap close; 9a, crescent; 9b, clinch; 9c, beating part; 10, first connecting rod; 11, second connecting rod; 12, the first coupling spindle; 13, the second coupling spindle; 14, the 3rd coupling spindle; 15, drive rod.
Embodiment
Embodiment: in conjunction with Fig. 1～shown in Figure 6, this selective protection switch operating mechanism that present embodiment provides, it is made of jointly pedestal 1, plug-in strip 2, contact mechanism 3, spring 4, tripping device, snap close 9 and linkage; Wherein assemble rotating plug-in strip 2 and contact mechanism 3 on the pedestal 1, linkage is assemblied between plug-in strip 2 and the contact mechanism 3, and spring 4 is connected between contact mechanism 3 and the pedestal 1, and the tripping device then is installed on the pedestal 1 and is used for the drive link mechanism action; Specifically, the described tripping device in the present embodiment.Specifically in conjunction with shown in Figure 2, tripping device in the present embodiment is made of jointly the first tripping 5, the second tripping 6, pivot 7 and torsion spring 8, the first tripping 5 and the second tripping 6 are by pivot 7 coaxial being articulated on the pedestal 1, described the first tripping 5 is provided with for interfering and driving the extension 5a that the second tripping 6 is rotated, and torsion spring 8 is assemblied in and is used for interfering the first tripping 5 to rotate on the pivot 7.
Concrete such as Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, linkage described in the present embodiment is made of jointly first connecting rod 10, second connecting rod 11, the first coupling spindle 12, the second coupling spindle 13 and the 3rd coupling spindle 14, wherein first connecting rod 10 1 ends articulate by the first coupling spindle 12 and plug-in strip 2, the other end articulates by the end of the second coupling spindle 13 with second connecting rod 11, and the other end of second connecting rod 11 then articulates by the drive rod 15 in the 3rd coupling spindle 14 and the contact mechanism 3; Have crescent 9a on the described snap close 9, above-mentioned the second coupling spindle 13 is assemblied in the described crescent 9a simultaneously; During "on" position, the clinch of described the first tripping 5 and snap close 9 offsets, so that spring 4 stretchings, and the second coupling spindle 13 terminates in crescent 9a one end, keeps linkage to be failure to actuate.And described in the present embodiment in the first tripping 5 clinch relative with snap close 9 be provided with a groove 5b, the clinch 9b of described snap close 9 one ends is wedge shape and the end can be supported in the described groove 5b.Also be provided with the beating part 9c that is positioned at clinch 9b one side on the described snap close 9, when described snap close 9 and the first tripping 5 break away from, described beating part 9c can interfere and drive the first tripping 5 and rotate, this is beneficial to the complete release of the first tripping and snap close so that snap close has possessed the function that again promotes the first tripping action when itself and the first tripping released state.
The second tripping 6 described in the present embodiment is driven by the major loop overcurrent trip in the selective protection switch; and the alarm module trip gear of triggering selection protection switch, and described the first tripping 5 is driven by the subsidiary loop current-release device in the selective protection switch.
The operation principle of present embodiment is as follows:
When selective protection switch works in distribution system; major loop in the switch and subsidiary loop current-release device all are in the normal position; the first tripping 5 this moment and the second tripping 6 all do not stress; the clinch of snap close 9 and the first tripping 5 offsets; so that spring 4 stretches; and the nose bar 10a on the first connecting rod 10 terminates in crescent 9a one end in the snap close 9, keeps linkage to be failure to actuate.
When overload current occurring in the distribution system, in conjunction with Fig. 3, shown in Figure 6, deformation occurs in the major loop overcurrent trip in the switch under the driving of heat energy, generation power F1, F1 drives forward the second tripping 6 and rotates around pivot 7, and the rotation step of the second tripping 6 drives the action of alarm module trip gear, sends alarm signal, the first tripping 5 this moment is under the interference effect of torsion spring 8, not along with the second tripping 6 is rotated, the state of having a common boundary of maintenance and snap close 9, this moment, switch still was in "on" position.
When short circuit current occurring in the distribution system; in conjunction with Fig. 3; shown in Figure 4; electric current in the switch major loop forwards subsidiary loop to; the subsidiary loop overcurrent trip is under the driving of heat energy; deformation occurs; generation power F2; F2 drives forward the first tripping 5 and rotates around pivot 7; this moment, the clinch of snap close 9 and the first tripping 5 came off; the clinch 9b of snap close 9 is (A to) motion downwards; the beating part 9c of snap close 9 hits the first tripping 5 in (A to) motion downwards at snap close 9, guarantees the separating brake of switch, can drive the separating brake motion (the separating brake motion of other grade of selective protection switch is prior art) of other grade of selective protection switch simultaneously.After the clinch of snap close 9 and the first tripping 5 came off, spring 4 shrank, and the drive rod 15 in the pulling contact mechanism 3 pivots and forces contact mechanism 3 to move to the separating brake direction; And drive rod 15 by the 3rd coupling spindle 14 promote second connecting rods 11 and on the second coupling spindle 13 to B to motion; drive first connecting rod 10 to B to motion by the second coupling spindle 13 again; driving plug-in strip 2 by first connecting rod 10 by the first coupling spindle 12 on it at last rotates to the separating brake direction; switch dropout this moment separating brake; cut off up and down power supply, the safety of protection personnel and equipment.
In conjunction with shown in Figure 5, when product closes a floodgate, the section of having a common boundary of snap close 9 and the first tripping 5 is kept closed, plug-in strip 2 rotates to the combined floodgate direction under the effect of F3, first connecting rod 10 passes through the first coupling spindle 12 interlocks with plug-in strip 2, first connecting rod 10 is under the drive of the first coupling spindle 12, crescent 9a along snap close 9 moves to opposite side, the second coupling spindle 13 same crescent 9a along snap close 9 under the drive of first connecting rod 10 moves to opposite side, and second connecting rod 11 also moves to crescent 9a opposite side under the drive of the second coupling spindle 13, final by second connecting rod 11 drive drive rods 15 pivots, driving contact mechanism 3 moves to the combined floodgate direction, this moment, switch closure can be powered by plugged.
In conjunction with shown in Figure 6, during the product separating brake, the section of having a common boundary of snap close 9 and the first tripping 5 is kept closed, plug-in strip 2 rotates to the combined floodgate direction under the effect of F4, first connecting rod 10 passes through the first coupling spindle 12 interlocks with plug-in strip 2, first connecting rod 10 is under the drive of the first coupling spindle 12, along the crescent 9a of snap close 9 to B to movement, the second coupling spindle 13 under the drive of first connecting rod 10 equally along the crescent 9a of snap close 9 to B to movement, second connecting rod 11 under the drive of the second coupling spindle 13 also along the B of crescent 9a to movement, final by second connecting rod 11 drive drive rods 15 pivots, pulling contact mechanism 3 moves to the separating brake direction, this moment the switch separating brake, can deenergization.
Claims (1)
1.
A kind of selective protection switch operating mechanism, comprise pedestal (1), be assemblied in pedestal (1) upper and rotating plug-in strip (2) and contact mechanism (3), the linkage that connects plug-in strip (2) and contact mechanism (3) is assemblied in the spring (4) between contact mechanism (3) and pedestal (1) and is installed in the tripping device that the drive link mechanism action was gone up and be used for to pedestal (1); It is characterized in that described tripping device comprises coaxial the first tripping (5) and the second tripping (6) that is articulated on the pedestal (1), described the first tripping (5) is provided with for interfering and driving the extension (5a) that the second tripping (6) is rotated, and is equipped with the torsion spring (8) of interfering the first tripping (5) to be rotated on the pivot (7) simultaneously; Also comprise the snap close (9) with linkage interlock, during "on" position, described the first tripping (5) with snap close (9) interference so that linkage be failure to actuate; Wherein said the second tripping (6) is driven by the major loop overcurrent trip in the selective protection switch, and the alarm module trip gear of triggering selection protection switch, and described the first tripping (5) is driven by the subsidiary loop current-release device in the selective protection switch; When overload current occurring in the distribution system, the major loop overcurrent trip acts on the second tripping (6), rotates after the second tripping (6) is stressed, and drives the alarm module trip gear, the first tripping this moment (5) is motionless, makes switch keep closing a floodgate not trip status; When short circuit in the distribution system occurs, large electric current excites the action of subsidiary loop current-release device, acted on again first tripping (5) of operating mechanism by subsidiary loop current-release device, rotate after making the first tripping (5) stressed, make the switch separating brake, the rotation of meanwhile the first tripping (5) drives the rotation of the second tripping (6), this alarm of switch and separating brake.
2. selective protection switch operating mechanism according to claim 1, it is characterized in that described linkage comprises first connecting rod (10) and second connecting rod (11), wherein said first connecting rod (10) one ends articulate by the first coupling spindle (12) and plug-in strip (2), the other end articulates by the end of the second coupling spindle (13) with second connecting rod (11), and the other end of second connecting rod (11) then articulates by the drive rod (15) in the 3rd coupling spindle (14) and the contact mechanism (3); Have crescent (9a) on the described snap close (9), above-mentioned the second coupling spindle (13) is assemblied in the described crescent (9a) simultaneously; During "on" position, described the first tripping (5) is provided with the clinch (9b) that clinch and snap close (9) be provided with and offsets, so that spring (4) stretches, and the second coupling spindle (13) terminates in crescent (9a) end.
3. selective protection switch operating mechanism according to claim 2; it is characterized in that the described clinch in the first tripping (5) is provided with a groove (5b), and the described clinch (9b) on the described snap close (9) is wedge shape and the end can be supported in the described groove (5b).
4. according to claim 2 or 3 described selective protection switch operating mechanisms; it is characterized in that also being provided with on the described snap close (9) beating part (9c) that is positioned at clinch (9b) side; when described snap close (9) broke away from the first tripping (5), described beating part (9c) can interfere and drive the first tripping (5) and rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110053641 CN102110553B (en) | 2011-03-07 | 2011-03-07 | Operating mechanism of selective protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110053641 CN102110553B (en) | 2011-03-07 | 2011-03-07 | Operating mechanism of selective protection switch |
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| Publication Number | Publication Date |
|---|---|
| CN102110553A CN102110553A (en) | 2011-06-29 |
| CN102110553B true CN102110553B (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110053641 Active CN102110553B (en) | 2011-03-07 | 2011-03-07 | Operating mechanism of selective protection switch |
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| CN (1) | CN102110553B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20131034A1 (en) * | 2013-06-21 | 2014-12-22 | Gewiss Spa | DEVICE FOR CLOSING CONTACTS OF A SWITCH |
| CN103745892B (en) * | 2014-01-16 | 2016-01-20 | 创奇科技有限公司 | The operating mechanism of miniature circuit breaker |
| CN106783425B (en) * | 2016-12-13 | 2019-01-25 | 滁州学院 | The tripping mechanism of selective miniature circuit breaker |
| CN113991744B (en) * | 2021-11-29 | 2024-04-16 | 山东瑞吉德自动化股份有限公司 | Intelligent energy supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3246322B2 (en) * | 1996-03-29 | 2002-01-15 | 富士電機株式会社 | Circuit breaker alarm |
| CN1320579C (en) * | 2005-07-06 | 2007-06-06 | 浙江中凯电器有限公司 | Operation mechanism of controlling and protecting electrical equipment on-off |
| CN202018934U (en) * | 2011-03-07 | 2011-10-26 | 法泰电器（江苏）股份有限公司 | Selective protection switch operating mechanism |
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| CN102110553A (en) | 2011-06-29 |
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