CN202205673U - Magnetic tripper - Google Patents
Magnetic tripper Download PDFInfo
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- CN202205673U CN202205673U CN201120328148XU CN201120328148U CN202205673U CN 202205673 U CN202205673 U CN 202205673U CN 201120328148X U CN201120328148X U CN 201120328148XU CN 201120328148 U CN201120328148 U CN 201120328148U CN 202205673 U CN202205673 U CN 202205673U
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- iron core
- yoke
- static iron
- drive link
- hole
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Abstract
A magnetic tripper belongs to the technical field of electric protective devices, and comprises a transmission rod, a movable iron core, a static iron core, a yoke, a coil, a guide sleeve and a counter-force spring, wherein the coil is wound outside the guide sleeve and is arranged in a cavity of the yoke; the movable iron core and the static iron core are correspondingly arranged and are contained in a containing cavity of the guide sleeve; the static iron core is kept static relative to the yoke; the movable iron core moves in the containing cavity of the guide sleeve and is attracted with or released from the static iron core; a through hole is arranged in the center in the axial direction of the static iron core, and the transmission rod is arranged in the through hole in a penetrating way and corresponds to the movable iron core; and the counter-force spring is sleeved on the transmission rod. The magnetic tripper is characterized in that the transmission rod penetrates through the through hole and then pushes against the movable iron core; and one end of the counter-force spring pushes against the end part of one end of the transmission rod, facing to the movable iron core, and the other end of the counter-force spring pushes against the static iron core. The magnetic tripper has the advantages that the processing is convenient, the strength can be ensured reliably, technical guarantee for satisfying the requirements on the miniature of the magnetic tripper is provided, and a relatively larger area of a pole end surface can be obtained so as to ensure the movement speed of the iron cores.
Description
Technical field
The utility model belongs to the electric protective device technical field, is specifically related to a kind of magnetic trip gear
Background technology
The effect of
magnetic trip gear is that industry is known; And in disclosed Chinese patent document, be no lack of the technical scheme that is seen in relevant magnetic trip gear, slightly with give an example like the disclosed moulded case circuit breaker magnetic of miniature circuit trip gear, CN201374291Y trip gear that CN2335255Y recommends.
have stable performance and not influenced and long service life by voltage fluctuation owing to the magnetic trip gear for the electronics trip gear, thereby are generally used as electric protective device.When occur in the main circuit such as the overcurrent that causes by short circuit (short circuit current) when flowing through coil, the magnetic release action also acts on operating mechanism, make the operating mechanism release, thereby the disjunction fault current is used the protection electric equipment.
The magnetic trip gear that widely uses in
prior art is by shown in Figure 1, and the drive link of this magnetic trip gear reaches moving iron core respectively by Fig. 2 and Fig. 3 signal.Can be known that by Fig. 1 the magnetic trip gear comprises drive link 1, static iron core 2, yoke 3, coil 4, fairlead 5, moving iron core 6 and reaction spring 7, static iron core 2 is contained in the cavity volume of fairlead 5 with moving iron core 6; And; Moving iron core 6 is axially constituting the first moving core packet 61 and second moving core packet 62, the second moving core packets 62 towards static iron core 2, and on this second moving core packet 62, constitutes an annular boss 621; End back to moving iron core 6 of static iron core 2 promptly is resisted against on the yoke 3 towards an end of yoke 3; The inside of static iron core 2 has an axial through hole 21, and this through hole 21 has the hole section in two different apertures, and the position, boundary of the hole section in these two different apertures constitutes step 211; One end of drive link 1 passes described through hole 21 and matches with the moving iron core step 63 of moving iron core 6; And the expansion of the other end of drive link 1 is provided with an end cap 11, and end cap 11 is resisted against on the yoke 3, and axially offers a post chamber 12 at drive link 1 towards an end of moving iron core 6; This post chamber 12 constitutes (Fig. 3 shows) by the first aperture section 122 that differs from one another and the second aperture section 123; First, second aperture section 122, constitute post chamber step 121 between 123, and the diameter of the first aperture section 122 is greater than the diameter of the second aperture section 123, the described second moving core packet 62 is contained in the post chamber 12; And be formed in the annular boss 621 of the second moving core packet 62 and the hole wall interference fit of the second aperture section 122 in post chamber 12; Reaction spring 7 is nested with on drive link 1, and between the moving iron core step 63 and step 211 of moving iron core 6, coil 4 is located at outside the fairlead 5 and is positioned at the cavity of yoke 3.
are when the magnetic trip gear is in normal operating state; Operating current flows through coil 4; Owing to dynamic and static iron core 6, have working gas gap 8 between 2; Moving iron core 6 receives the electromagnetic attraction that is produced by operating current, and moving simultaneously iron core 6 receives the active force of post chamber step 121 in post chamber 12 of reaction spring thrust and the drive link 1 of reaction spring 7, that is: reaction spring thrust equals the active force sum of electromagnetic attraction and post chamber step 121; Thereby moving iron core 6 keeps static, and dynamic and static iron core 6, the working gas gap between 28 are relatively stable.Yet, when main circuit produces short circuit current, short circuit current flowing through coil 4; Owing to dynamic and static iron core 6, have air gap 8 between 2, thereby dynamic and static iron core 6, produce the short circuit current electromagnetic attraction that causes by short circuit current between 2, because short circuit current is far longer than aforesaid operating current; Therefore the short circuit current electromagnetic attraction of short circuit current generation overcomes the reaction spring thrust of reaction spring 7; Thereby make the direction displacement of iron core 6,, promote the operating mechanism of circuit breakers by the end cap 11 of drive link 1 by the second moving core packet 62 promotion drive links, 1 action of moving iron core 6 towards static iron core 2; Make the operating mechanism release, the disengagement failure electric current.
are in order to obtain big as far as possible short circuit current electromagnetic attractions 8 times at effective working gas gap; So that magnetic trip gear effective action when making short circuit current flow through coil 4; Thereby require the magnetic pole face area at working gas gap 8 places big usually; Promptly shown in Figure 1, the corresponding area of the end face of moving iron core 6 of working gas gap 8 places requirement and static iron core 2 is big.Therefore; According to the conventional design concept of industry is that diameter with dynamic and static iron core 6,2 increases jointly; Use the face area that obtains dynamic and static iron core 6,2, still, there is the problem of attending to one thing and lose sight of another in this kind design concept; This is meant so-called Gu and can increases the short circuit current electromagnetic attraction; That then undoubtedly causes the synchronous increase of fairlead 5, yoke 3 and coil 4 so-called mistake, and the overall volume of magnetic trip gear is increased, and requires incompatible with the miniaturization that efforts be made so that electric protective device at present.
especially from the enlightenment of structure illustrated in figures 1 and 2, can know that the diameter with the second moving core packet 62 that moves iron core 6 designs more for a short time through above-mentioned explanation like a cork for the diameter of the first moving core packet 61, promptly increase magnetic pole face area through the diameter that dwindles the second moving core packet 62; But facts have proved and be difficult to technically prove effective; Because the size of the drive link 1 that matches with the second moving core packet 62 is restricted, promptly; In order to make the drive link 1 and second moving core packet 62 assemblings; The diameter that must make drive link 1 is greater than the diameter of the second moving core packet 62, otherwise the second moving core packet 62 can't be inserted in the post chamber 12 of drive link 1, exactly because there is post chamber 12 in drive link 1; Restrict reducing of drive link external diameter, also caused the machine-shaping of drive link 1 very difficult; Again because; Annular boss 621 is little with post chamber step 121 contacts area; Contact stress is concentrated; Be prone to cause post chamber step 121 impaired, make between iron core 6 and the drive link 1 to produce looseningly, dynamic and static iron core 6, the working gas gap between 28 become big; The amplitude that reduces of the short circuit current electromagnetic attraction before and after the amplitude that reduces of the reaction spring thrust of reaction spring 7 changes greater than the working gas gap 8 of moving iron core 6 under same short-circuit current value; Cause because of the magnetic trip gear actual act electric current under post chamber step 121 working gas gap 8 after impaired less than the operating current under the operate as normal air gap 8 (short-circuit current value of setting by production firm), finally cause the operating current error of magnetic release big, even exceed the error range of permission.Otherwise, if increase the external diameter of drive link 1 and increase the diameter of the second moving core packet 62 simultaneously, just so aforesaid shortcoming can be eliminated; But can cause the magnetic pole face area at working gas gap 8 places to reduce; When short circuit current flow through coil 4, the electromagnetic attraction that the moving iron core 6 of magnetic trip gear receives reduced, and can't realize the quick acting of moving iron core 6; The speed of electric protective device disjunction short circuit current reduces, and is unfavorable for the protection to electric wiring and equipment.
Therefore; The scope that how allows (standard GB14048.2 regulation in magnetic dropout operating current error; To all current settings, its accuracy is ± 20%) in can make iron core under the situation of coil short circuit current flow, have big electromagnetic attraction to use rapid action, can reasonably increase moving iron core again and use at the magnetic pole face area at working gas gap place and find aspect the miniaturization that embodies the magnetic trip gear rational balance point to become industry to pay close attention to and the technical problem of expectation solution; To this; The applicant has carried out actively and good try has found the way of dealing with problems, and the technical scheme that will introduce below produces under this background
Summary of the invention
The task of
the utility model is to provide a kind of and had both helped to increase moving iron core and use at the magnetic pole area at working gas gap place and ensure that moving iron core moves rapidly, and the processing that helps dwindling the diameter of drive link and make drive link again becomes more simple and uses the magnetic trip gear that satisfies the miniaturization demand for development.
The task of
the utility model is accomplished like this, and a kind of magnetic trip gear comprises drive link, moving iron core, static iron core, yoke, coil, fairlead and reaction spring; The coil winding and is positioned at the cavity of yoke outside fairlead, dynamic and static iron core corresponds to each other and is provided with and is contained in the cavity volume of fairlead; Wherein, the relative yoke of static iron core keeps static, and moving iron core moves in the cavity volume of fairlead; With static iron core adhesive or release, the axial central authorities of static iron core offer a through hole, and drive link is located in the through hole movably and corresponds to moving iron core; Match with moving iron core; Reaction spring is nested with on drive link, and being used for provides the power in the opposite direction with the static iron core adhesive to moving iron core, it is characterized in that said drive link leans with moving iron core after passing through hole; One end of said reaction spring be resisted against drive link towards the end of an end of moving iron core, the other end then is resisted against on the said static iron core.
are in one of the utility model concrete embodiment; Said fairlead constitutes first location division that ring is logical on the inwall corresponding to an end of said static iron core; And on the outer wall of static iron core and in position, constituting second location division that ring is logical corresponding to first location division, first, second location division mates with each other and static iron core and fairlead is fixed.
are in another concrete embodiment of the utility model; Described moving iron core offers a cavity towards an end of said static iron core and in the position corresponding to said through hole; Described drive link constitutes the diameter end cap bigger than the diameter of drive link towards an end end of said cavity; This end cap probes in the cavity and leans with the chamber wall of cavity, and described reaction spring is resisted against on the end cap and follows drive link to be insinuated in the cavity.
in another concrete embodiment of the utility model, described first location division is a groove, and described second location division is a boss, and boss matches with groove.
in another concrete embodiment of the utility model, described first location division is a boss, and described second location division is a groove, and groove matches with boss.
also have among the concrete embodiment the utility model, and described fairlead constitutes one and is used for stopper section that the off-position of described moving iron core when discharging limited towards the end of an end of said moving iron core.
are at more and among concrete embodiment of the utility model; The global shape of described yoke takes the shape of the letter U; On the first yoke wall body of this yoke one end, offer one first spacing hole; And on the second yoke wall body of the yoke other end, offering one second spacing hole, described fairlead matches with described first spacing hole, and described static iron core is resisted against on described second spacing hole.
the utility model so that concrete embodiment in; Said fairlead constitutes spacing bead on the outer wall of an end of the said first yoke wall body; This spacing bead is resisted against on described first spacing hole; Described static iron core on the end face of an end of the said second yoke wall body and the central authorities that are positioned at end face constitute a restriction protrusion, this restriction protrusion is resisted against on described second spacing hole.
At again and then among concrete embodiment of the utility model, said fairlead is processed by insulating material or non-magnet material
.
are at more and then among concrete embodiment of the utility model; Said through hole is made up of the first through hole section and the second through hole section; Constitute step between first, second through hole section; One end of said reaction spring be resisted against drive link towards the end of an end of moving iron core, the other end then is resisted against on the said step.
The technical scheme that
the utility model provides is because drive link has been abandoned the post chamber in the prior art; Thereby make processing more convenient; Intensity is able to reliable assurance; Do not had restriction thereby its diameter in prior art center pillar chamber to obtain effectively dwindling owing to drive link again, thereby made the volume of dynamic and static iron core, fairlead and yoke and coil be able to dwindle synchronously, technical guarantee is provided for satisfying magnetic trip gear miniaturization requirement; And can obtain relatively large magnetic pole face area, guarantee the responsiveness of iron core.
Description of drawings
Fig. 1 is the cutaway view of the magnetic trip gear in the prior art.
Fig. 2 is the sketch map of drive link shown in Figure 1.
Fig. 3 is the structure chart of moving iron core shown in Figure 1.
Fig. 4 is the package assembly sketch map of the magnetic trip gear of the utility model.
Fig. 5 is the cutaway view after Fig. 4 assembling.
Fig. 6 is the sketch map of the drive link of the utility model.
Fig. 7 is the structure chart of the static iron core of the utility model.
Fig. 8 is the sketch map of through hole of the static iron core of the utility model.
Fig. 9 is the partial enlarged drawing of Fig. 1.
Figure 10 is the sketch map of switching device.
Embodiment
can be expressly understood the technical spirit and the beneficial effect of the utility model more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the utility model scheme, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be regarded as the technical scheme category of the utility model.
Fig. 4 to Fig. 9 is asked for an interview in
; The magnetic trip gear that the utility model provides comprises: drive link 1, dynamic and static iron core 6,2, yoke 3, coil 4, fairlead 5 and reaction spring 7; Coil 4 windings are in the outside of fairlead 5, and are positioned at the cavity 31 of yoke 3, and cavity 31 is the yoke chamber; The global shape of yoke 3 takes the shape of the letter U; One end of this yoke 3 is that lower end shown in Figure 4 constitutes one first yoke wall body 32 with 90 ° of bendings, on this first yoke wall body 32, offers one first spacing hole 321, constitutes one second yoke wall body 33 with 90 ° of bendings equally and the other end of yoke 3 is the upper end of location status shown in Figure 4; On the second yoke wall body 33, offer one second spacing hole 331, aforesaid cavity 31 constitutes by first, second the parallel yoke wall body 32,33 of perhaps claiming that corresponds to each other.The cavity volume interior (Fig. 5 shows) that moving iron core 6 and static iron core 2 correspond to each other and be arranged on fairlead 5; The working gas gap 8 (also can claim magnetic gap) that constitutes in dynamic and static iron core 6, the gap that keeps between 2; Wherein: moving iron core 6 can be in the cavity volume of fairlead 5 moves towards the direction of static iron core 2; Perhaps move towards the direction that deviates from static iron core 2, when the direction towards static iron core 2 moves then with static iron core 2 adhesives, otherwise then discharge.Concrete Fig. 5 and Fig. 8 of combining; In the axial central authorities of static iron core 2 is that the central authorities of the length direction of static iron core 2 offer a through hole 21; This through hole 21 is the reducing through hole; Promptly be made up of the first hole section 212 and the second hole section 213, the position, boundary of first, second hole section 212,213 constitutes step 211, and wherein: the diameter of the first hole section 212 (internal diameter) is bigger than the diameter (internal diameter) of the second hole section 213.Static iron core 2 relative yokes 3 keep static, and are fixedly connected with fairlead 5.Drive link 1 is set in the aforesaid through hole 21 movably, and drive link 1 matches with moving iron core 6 after an end of moving iron core 6 is passing through hole 21, and the other end is stretched over aforesaid second spacing hole 331 outer (Fig. 5 shows).Reaction spring 7 is nested with on drive link 1; Be used for providing and static iron core 2 counter-force of the adhesive direction of adhesive mutually to moving iron core 6; One end of this reaction spring 7 is that the left end of location status shown in Figure 5 corresponds to moving iron core 6; Match with moving iron core 6, and the other end is the right-hand member of location status shown in Figure 5 be received into the aforesaid second hole section 213 and against (supporting) on step 211.
are by shown in Figure 5; On the inwall of an end of static iron core 2, constitute (promptly centering on the circumferencial direction of fairlead 5) first location division 51 that ring is logical at fairlead 5; Therewith adaptably; On the outer wall of static iron core 2 and at the position corresponding to first location division 51, constitute one and be similarly logical (promptly centering on the circumferencial direction of static iron core 2) second location division 22 of ring, this second location division 22 and first location division 51 cooperatively interact.In the present embodiment, groove is selected in first location division, and boss is selected in second location division, is protruded into groove and static iron core 2 is fixedly connected with fairlead 5 by boss.Yet; If boss is selected in first location division 51; And groove is selected in second location division, and insert groove and static iron core 2 be fixedly connected with fairlead 5 by boss, should be regarded as so and before a kind of situation equivalent and still belong to the protection range of the utility model.
are by shown in Figure 7; Static iron core 2 on the end face of an end of the aforesaid second yoke wall body 33 and the central authorities that are positioned at end face constitute one protrude in end face restriction protrusion 23; This restriction protrusion 23 matches with second spacing hole 331, promptly is resisted against on second spacing hole 331 (Fig. 5 shows).
Fig. 5 please be seen by emphasis in
; Technical essential as the utility model scheme: the central part (middle position) that promptly is positioned at moving iron core 6 at aforesaid moving iron core 6 towards an end of static iron core 2 and at the position corresponding to the second hole section 213 offers a cavity 64; The diameter of this cavity 64 is preferably consistent with the diameter of the second hole section 213; Aforesaid drive link 1 is passing through hole 21 towards an end of moving iron core 6 and is promptly passing the first hole section 212 and the second hole section 213 successively afterwards and then be insinuated in the cavity 64; And match with cavity 64, and the end (left end shown in Figure 5) on the drive link 1 of being resisted against of aforesaid reaction spring 7 is followed drive link 1 to probe into promptly to be received in the cavity 64.That is to say that an end of reaction spring 7 (left end that Fig. 5 shows) gets into cavity 64, and the other end (right-hand member that Fig. 5 shows) gets into the first hole section 212.
comparatively preferred scheme; The end expansion that is insinuated into the end in the cavity 64 of drive link 1 is set as the end cap 11 of a diameter greater than the diameter of drive link 1 own; End cap 11 matches with the inwall (chamber wall) of cavity 64; The left end of aforesaid reaction spring 7 (Fig. 5 shows) is resisted against on the end cap step 111 of end cap 11, and right-hand member is resisted against on the step 211.In moving iron core 6 and static iron core 2 attracting process, can under the reaction force that overcomes reaction spring 7, promote drive link 1 action by moving iron core 6, until moving iron core 6 and static iron core 2 adhesives.
The magnetic trip gear of
the utility model is in application state when being in running order; Normal operating current flows through coil 4; Because have working gas gap 8 between moving iron core 6 and the static iron core 2, moving iron core 6 receives the electromagnetic attraction that is produced by operating current, stop part active force and the drive link 1 of stopper section 52 that moving simultaneously iron core 6 receives fairlead 5 under the effect of reaction spring 7 to moving the reaction spring thrust of iron core 6; So; Reaction spring thrust is electromagnetic attraction and stop part active force sum, and moving iron core 6 keeps static, dynamic and static iron core 6, the working gas gap relative fixed between 2.
Figure 10 is asked for an interview in
; When producing fault current such as short circuit current in the major loop, short circuit current flows through coil 4, same because dynamic and static iron core 6, has working gas gap 8 between 2; Moving iron core 6 receives the short circuit current electromagnetic attraction that is produced by short circuit current; This short circuit current electromagnetic attraction will be far longer than aforesaid operating current, and the short circuit current electromagnetic attraction that is therefore produced by short circuit current makes iron core 6 actions under the state that overcomes reaction spring thrust, and moving iron core 6 moves to the direction of static iron core 2; Reaction spring 7 compression is until moving iron core 6 arrival and static iron core 2 attracted position of adhesive mutually.Thereby the end by drive link 1 is the mechanism 91 that extends to end (Fig. 5 shows) the stroke switch device 9 outside second spacing hole 331 of drive link 1.
are in the technical scheme that the utility model provides; There is not the second moving core packet of for example being illustrated by Fig. 1 62 in the prior art in moving iron core 6, thereby can make the end of drive link 1 abandon the post chamber 12 that is used to hold the second moving core packet 62, not only makes drive link 1 processing simple; And the external diameter of drive link 1 can significantly dwindle; And the end cap 11 that is used for matching with cavity 64 of drive link 1 can significantly dwindle, and whole drive link 1 is significantly less than prior art drive link 1 as shown in Figure 2, compared with present technology; Increased the magnetic pole face area of dynamic and static iron core 6,2; Under short-circuit conditions, the electromagnetic attraction of the moving iron core 6 of magnetic trip gear also is improved, and can make quick acting of magnetic trip gear and volume miniaturization.
Simultaneously; Match with second location division 22 on the outer wall of static iron core 2 in first location division 51 on the inwall of fairlead 5; The contact area of first, second location division 51,22 is bigger than the for example contact area by annular boss shown in Figure 1 621 and post chamber step 121 in the prior art; Thereby second location division 22 of the utility model and the stress on 51 contact-making surfaces of first location division are reduced with respect to prior art greatly,, first, second location division 51, the locate failure between 22 promptly can not occur even suffer the effect of reaction spring 7 also to be difficult for being damaged; Dynamic and static iron core 6, the working gas gap between 2 can not change; That is, remain on certain value, thereby the error that ensures magnetic dropout operating current can not exceed allowed band
Claims (10)
1.
a kind of magnetic trip gear comprises drive link (1), moving iron core (6), static iron core (2), yoke (3), coil (4), fairlead (5) and reaction spring (7), and coil (4) winding is outside fairlead (5); And be positioned at the cavity (31) of yoke (3); Dynamic and static iron core (6,2) corresponds to each other and is provided with and is contained in the cavity volume of fairlead (5), and wherein, static iron core (2) yoke (3) relatively keeps static; Moving iron core (6) moves in the cavity volume of fairlead (5); With static iron core (2) adhesive or release, the axial central authorities of static iron core (2) offer a through hole (21), and drive link (1) is located in the through hole (21) movably and corresponds to moving iron core (6); Match with moving iron core (6); Reaction spring (7) is nested with on drive link (1), and being used for provides and static iron core (2) adhesive power in the opposite direction to moving iron core (6), it is characterized in that said drive link (1) leans with moving iron core (6) after passing through hole (21); One end of said reaction spring (7) be resisted against drive link (1) towards the end of an end of moving iron core (6), the other end then is resisted against on the said static iron core (2).
2.
magnetic trip gear according to claim 1; It is characterized in that said fairlead (5) constitutes first location division (51) that ring is logical on the inwall corresponding to an end of said static iron core (2); And on the outer wall of static iron core (2) and in position, constituting second location division (22) that ring is logical corresponding to first location division (51), first, second location division (51,52) mate with each other and static iron core (2) and fairlead (5) are fixed.
3.
magnetic trip gear according to claim 1; It is characterized in that described moving iron core (6) offers a cavity (64) towards an end of said static iron core (2) and in the position corresponding to said through hole (21); Described drive link (1) constitutes the diameter end cap (11) bigger than the diameter of drive link (1) towards an end end of said cavity (64); This end cap (11) probes in the cavity (64) and leans with the chamber wall of cavity (64), and described reaction spring (7) is resisted against end cap (11) and goes up and follow drive link (1) to be insinuated in the cavity (64).
4.
magnetic trip gear according to claim 2 it is characterized in that described first location division (51) is groove, and described second location division (22) is a boss, and boss matches with groove.
5.
magnetic trip gear according to claim 2 it is characterized in that described first location division (51) is boss, and described second location division (22) is a groove, and groove matches with boss.
6.
magnetic trip gear according to claim 1 is characterized in that described fairlead (5) constitutes one and is used for stopper section (52) that the off-position of described moving iron core (6) when discharging limited towards the end of an end of said moving iron core (6).
7.
magnetic trip gear according to claim 1; The global shape that it is characterized in that described yoke (3) takes the shape of the letter U; On the first yoke wall body (32) of these yoke (3) one ends, offer one first spacing hole (321); And on the second yoke wall body (33) of yoke (3) other end, offer one second spacing hole (331); Described fairlead (5) matches with described first spacing hole (321), and described static iron core (2) is resisted against on described second spacing hole (331).
8.
magnetic trip gear according to claim 7; It is characterized in that said fairlead (5) constitutes spacing bead (53) on the outer wall of an end of the said first yoke wall body (32); This spacing bead (53) is resisted against on described first spacing hole (321); Described static iron core (2) on the end face of an end of the said second yoke wall body (33) and the central authorities that are positioned at end face constitute a restriction protrusion (23), this restriction protrusion (23) is resisted against on described second spacing hole (331).
9.
according to claim 1 or 2 or the described magnetic trip gear of the arbitrary claim of 6-8, it is characterized in that said fairlead (5) processed by insulating material or non-magnet material.
10.
Magnetic trip gear according to claim 1; It is characterized in that said through hole (21) is made up of the first through hole section (212) and the second through hole section (213); First, second through hole section constitutes step (211) between (212,213); One end of said reaction spring (7) be resisted against drive link (1) towards the end of an end of moving iron core (6), the other end then is resisted against on the said step (211)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120328148XU CN202205673U (en) | 2011-09-02 | 2011-09-02 | Magnetic tripper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120328148XU CN202205673U (en) | 2011-09-02 | 2011-09-02 | Magnetic tripper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202205673U true CN202205673U (en) | 2012-04-25 |
Family
ID=45969779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120328148XU Expired - Lifetime CN202205673U (en) | 2011-09-02 | 2011-09-02 | Magnetic tripper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202205673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104810217A (en) * | 2015-04-28 | 2015-07-29 | 大全集团有限公司 | Magnetizer-added controllable electromagnetic trip device and tripping method |
| CN105470065A (en) * | 2014-09-30 | 2016-04-06 | Ls产电株式会社 | Actuator for circuit breaker and method for manufacturing the same |
-
2011
- 2011-09-02 CN CN201120328148XU patent/CN202205673U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105470065A (en) * | 2014-09-30 | 2016-04-06 | Ls产电株式会社 | Actuator for circuit breaker and method for manufacturing the same |
| CN105470065B (en) * | 2014-09-30 | 2018-11-27 | Ls产电株式会社 | Actuator and its manufacturing method for breaker |
| CN104810217A (en) * | 2015-04-28 | 2015-07-29 | 大全集团有限公司 | Magnetizer-added controllable electromagnetic trip device and tripping method |
| CN104810217B (en) * | 2015-04-28 | 2017-03-08 | 南京大全电气研究院有限公司 | A kind of controllable electromagnetic trip gear for adding magnetic conductor and tripping method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |