CN100428391C - Tripping device for breaker operation mechanism - Google Patents
Tripping device for breaker operation mechanism Download PDFInfo
- Publication number
- CN100428391C CN100428391C CNB2006100410637A CN200610041063A CN100428391C CN 100428391 C CN100428391 C CN 100428391C CN B2006100410637 A CNB2006100410637 A CN B2006100410637A CN 200610041063 A CN200610041063 A CN 200610041063A CN 100428391 C CN100428391 C CN 100428391C
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- snap close
- hub setting
- pair
- circuit breaker
- draw bar
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Abstract
This invention relates to a trip device for a breaker operation unit including a first and a second lock buttons having a pair of first and second pivoted flanges, a hop button, a spring and a traction rod characterizing that tenons are set on any pivoted flange in the pair of the first flanges of the first lock button and tenon holes are set on the middle section of the traction rod opposite to the tenons, grooves are set axially at the back of the middle section of the traction rod and swivel grooves are set on the opposite internal walls of the back of the middle section and the axis of the swivel groove and that of the groove are on a same line.
Description
Technical field
The present invention relates to a kind of trip gear of circuit breaker operation mechanism, be used to make circuit breaker trip, belong to the low-voltage electrical apparatus field.
Background technology
CN1409344A discloses tripping operation cross bar that is used for circuit breaker and the improvement of tripping armature assembly, be specifically related to the trip gear of circuit breaker operation mechanism, with regard to the fit structure of the tripping operation cross bar of this trip gear (the industry custom is referred to as draw bar) and cylinder plug body (custom is referred to as snap close), the characteristics of existing achievement, however the deficiency of shortcoming is also arranged.The characteristics of achievement show as, by on draw bar, offering through hole, and on snap close, also offer tapped through hole with it accordingly, both are realized linking by means of through hole with screw, so that activate draw bar by the distortion of bimetal leaf heated bending, draw bar is rotated, drive snap close simultaneously and rotate, finally realize circuit breaker trip.Because this draw bar is the thermoplastic rod-like element, and the installation site make that it is axially perpendicular to circuit breaker each to dynamic and static contact, near bimetal leaf, with screw draw bar is fixedlyed connected with snap close, can avoid in the past for after earlier draw bar and snap close being riveted, again both are installed to circuit breaker inside together, promptly draw bar can not become the element of last assembling and cause the volume of circuit breaker to be subjected to the position of draw bar, the problem that shape, size limited.That is to say, because such scheme can make draw bar become last mounted component, volume that can also correspondingly little change circuit breaker; The shortcoming part shows as, and the one, adopt the screw assembling still to be not enough to demonstrate fully the effect of quick installation, and can not save securing member to greatest extent, make the saving of part not reach ultimate attainment degree; The 2nd, when draw bar and snap close being fixed with screw, compatible surface and draw bar of joining with snap close of draw bar and the compatible surface of joining of support that is used for the hub setting snap close tend to be subjected to be screwed into the opposite level of direction to extruding force with screw, thereby can cause draw bar bulk deformation and even damage, because draw bar is a thermoplastic, and snap close, support are metal material; The 3rd, with screw with draw bar and snap close when affixed, the active force that is produced also can be delivered to the fixing point of support and Shell of circuit breaker, cause between the two loosening, finally cause the relative position between draw bar, snap close, support, housing to guarantee, because twisting in the process of revolving the screw assembling with instrument, draw bar, snap close, the suffered power of support are attended by the extruding force of horizontal direction.
Summary of the invention
Task of the present invention is to provide a kind of when draw bar and snap close connect, can fast and simple installation, can guarantee that draw bar integral body is indeformable and can not influence the trip gear of circuit breaker operation mechanism of the relative position of other parts.
Task of the present invention is finished like this, a kind of trip gear of circuit breaker operation mechanism, it comprises interact with each other first snap close 2 and second snap close 3 with a pair of second hub setting bead 31 with a pair of first hub setting bead 21 of hub setting respectively on the support 6 of operating mechanism, one hub setting similarly on support 6 corresponding and by of the tripping 4 of second snap close 3 to its effect with second snap close 3, one middle part is located on the second snap close axle 32 of second snap close 3 and two ends lean against support 6 respectively, spring 5 on first snap close 2, one by interlude 11, a left side, right side section 12,13 constitute the as a whole draw bar 1 that links with first snap close 2 of being used for, and it is characterized in that: in a pair of first hub setting bead 21 of described first snap close 2 appoint to select on the hub setting bead 21, extended tenon 211; The interlude 11 of described draw bar 1 offers at the position corresponding with described tenon 211 and is used for the mortise 111 that inserts for tenon 211; The back side of the interlude 11 of described draw bar 1 axially offers and is used for the groove 112 that the first snap close axle, 22 axis bodies for first snap close 2 hold, and the two-phase at interlude 11 back sides offers on inwall 114 and is used for the spindle nose groove 1141 that the spindle nose for the two ends of the first snap close axle 22 holds, and spindle nose groove 1141 is same straight line with the axis of groove 112.
The side of spindle nose groove 1141 of the present invention constitutes inclined-plane 1142.
The back side of interlude 11 of the present invention offers a pair of first hub setting bead 21 that is respectively applied for confession first snap close 2 and the cavity 115 that body bead 24 is located in, and also offers the hub setting bead groove 116 that a pair of a pair of apical margin 64 of having preset the first hub setting axis hole 61 that is used for confession support 6 is located in.
Tenon 211 on the first hub setting bead 21 of the present invention be shaped as in cuboid, the cylinder any one.
Mortise 111 of the present invention be shaped as rectangular opening, any one in the circular port.
One of advantage of the present invention, becoming prior art adopts screw that the draw bar 1 and first snap close 2 are connected to adopting tenon 211 and mortise 111 fit 112, the spindle nose groove 1141 and the first snap close axle 22 realize that the draw bar 1 and first snap close 2 are connected, and make that assembling is simple and direct, save securing member simultaneously; Two, when draw bar 1 and 2 assemblings of first snap close, draw bar 1, first snap close 2, support 6 suffered power all show as perpendicular to draw bar 1 axial, and there is not the extruding force of horizontal direction, thereby eliminated draw bar 1 distortion, damage and eliminated influence to the relative position of other parts, this influence for example make the fixing point between support 6 and the Shell of circuit breaker occur loosening, and for example make the relative position between draw bar 1, first snap close 2, support 6, the Shell of circuit breaker occur changing.
Description of drawings
Fig. 1 is one embodiment of the invention structure chart.
Fig. 2 is the structure figure of draw bar 1 shown in Figure 1.
Schematic diagram when Fig. 3 is in trip status for the present invention on circuit breaker.
Schematic diagram when Fig. 4 is in the hasp state for the present invention on circuit breaker.
Fig. 5 is configured in schematic diagram on the circuit breaker for the present invention.
Embodiment
By the applicant following given embodiment is described, will help to understand technical spirit of the present invention and technique effect more, but embodiment does not constitute the restriction to technical solution of the present invention.
In Fig. 1 and Fig. 2, circuit breaker operation mechanism includes support 6, and this support 6 is first, second snap closes 2,3 that are used for being provided with trip gear of the present invention, tripping 4.First snap close 2 by a pair of first hub setting hole 212 on a pair of first hub setting bead 21 hub setting on the first snap close axle 22, and the two ends of the first snap close axle 22 respectively hub setting in the first default hub setting axis hole 61 of support 6 both sides.Shown that by Fig. 1 it is prominent 23 to have extended a spring catch in a side of first snap close 2, this spring catch prominent 23 is to be used for reclining for first spring pin 51 of the following spring that will mention 5.As embodiment, though the present invention has been arranged on tenon 211 on one the first hub setting bead 21 with the right of location status shown in scheming, but,, should be equivalent so if tenon 211 is extended on one the first hub setting bead 21 on the left side of location status shown in the Yu Yitu.That is to say, do not limited, can in a pair of first hub setting bead 21, appoint and select one for the particular location of tenon 211.Also have, if someone painstakingly all extends tenon 211 on a pair of first hub setting bead 21, and,, so as if still should not be considered as breaking away from the category of technical conceive of the present invention even this situation occurs for adaptive interlude 11 to draw bar 1 is offered a pair of mortise 111.For the concrete shape of tenon 211, the present invention does not need specifically to limit, and the preferable shape that provides in the drawings is to constitute cuboid by four edges, yet, also can be cylinder or for tri-prismoid or the like.As soon as the shape of tenon 211 determines that the hole shape of mortise 111 is also determined so, that is to say between mortise 111 and the tenon 211 to maintain the relation of following in sb's footsteps thereupon.
Second snap close 3 by a pair of second hub setting bead 31 hub setting on the second snap close axle 32, and the two ends of the second snap close axle 32 be separately fixed at support 6 both sides default and the second hub setting axis hole 62 corresponding to the first hub setting axis hole, 61 belows on.Offer hole, snap close angle 33 on the body of second snap close 3, this hole, snap close angle 33 is to be used for probeing into for formed snap close angle 213 on one of them first hub setting bead 21 of first snap close 2.When snap close angle 213 was insinuated in the hole, snap close angle 33, then first snap close 2 was no longer to 3 control of second snap close, otherwise when snap close angle 213 was not insinuated in the hole, snap close angle 33, second snap close 3 was supported at snap close angle 213.Again, be concaved with a notch 35 in body one side of second snap close 3, this notch 35 is used for matching with tripping 4, when tripping 4 is arranged in notch 35, show as the hasp state of circuit breaker operation mechanism, and when notch 35 was deviate from tripping 4, circuit breaker operation mechanism was in trip status.And second snap close 3 is also dashed forward in the hole 63 by the sidepiece institute prominent pivot of 34 hub settings on defaulting in support 6 of extended pivot at its nearly middle part.Tripping 4 also by the corresponding axis hub setting on support 6.
The middle part of spring 5 is nested with on the second snap close axle 32, and first, second spring pin 51,52 of spring 5 abuts in respectively on the spring catch prominent 23 of first snap close 2 and on the support 6.
Draw bar 1 is obtained by molded thermoplastic, and shown in figure, it is an integral body that is made of the syllogic body of rod, and promptly interlude 11 and the left and right side section 12,13 with location status shown in scheming constitutes.The two ends of interlude 11 and left side section 12 and constitute narrow being used to of contracting respectively with the junction of right side section 13 interfaces and distinguish the out of phase neck 113 of circuit breaker, and this neck 113 to be semicircle shaft-like.Mortise 111 is opened on the interlude 11, illustrated to be opened in the side that takes over of interlude 11 among the figure, this is because tenon 211 has been arranged on one the first hub setting bead 21 on the right of first snap close 2, if tenon 211 is arranged on one the first hub setting bead 21 on the left side of first snap close 2, just mortise 211 is opened in the side of taking back of interlude 11 so.
Specifically referring to Fig. 2 and Fig. 3, draw bar 1 illustrated in Figure 2 is that the rearview of the draw bar 1 among Fig. 1 is a chart at the bottom of.On interlude 11, offer and be used for the groove 112 that the first snap close axle, 22 middle parts for first snap close 2 hold, that is to say that groove 112 is the axis bodies that are used for compensating the first snap close axle 22, the spindle nose groove of being set up on inwall 114 in the two-phase at interlude 11 back sides 1141 is the spindle noses that are used to compensate the first snap close axle, 22 two ends; In addition, also offer one at interlude 11 back sides and be used for a pair of first hub setting bead 21 of confession first snap close 2 and the cavity 115 that body bead 24 is located in, the hub setting bead groove 116 that a pair of a pair of apical margin 64 of having preset the first hub setting axis hole 61 that is used for confession support 6 is located in.Like this, draw bar 1 can embody more and first snap close 2 between fiting effect.When draw bar 1 is installed, as long as mortise 111 is aimed at tenon 211 firmly holds the first snap close axle 22 downwards until groove 112 axis body, spindle nose groove 1141 holds the spindle nose at the first snap close axle, 22 two ends, cavity 115 holds the first hub setting bead 21 and body bead 24, the upper surface (as Fig. 1) of the back of draw bar 1 interlude 11 and the connecting plate 25 of first snap close 2 is fitted, the apical margin 64 of hub setting bead groove 116 containment brackets 6.This assembling process, can make draw bar 1, first snap close 2, support 6 suffered power all show as the axial power of vertical and draw bar 1, thereby do not have in the prior art extruding force that also is attended by horizontal direction when assembling by screw, therefore can prevent draw bar 1 distortion, damage and prevent that fixing point between support 6 and Shell of circuit breaker 7 (see figure 5)s from producing loosening and prevent that variation from appearring in the relative position of 7 of draw bars 1, first snap close 2, support 6, Shell of circuit breaker.
Preferably the two sides of groove 112 are made as inclined-plane 1142 in the present embodiment, thereby the spindle nose that reduces the first snap close axle, 22 two ends fits into the resistance of spindle nose groove 1141, plays the guide effect that the first snap close axle 22 holds process.
Because effect or the title operating principle of trip gear of the present invention on circuit breaker is identical with prior art, be the binding between the draw bar 1 and first snap close 2 and do not relate to all the other owing to the technical solution of the present invention key again, therefore, the applicant sketches tripping operation process of the present invention in conjunction with Fig. 3, Fig. 4 and Fig. 5.
When overload takes place in circuit, overload current flows through bimetal leaf 8 and the certain time in the thermal tripping mechanism, bimetal leaf 8 is heated bending, screw 81 on the bimetal leaf 8 acts on draw bar 1, draw bar 1 is clockwise rotated around the first snap close axle 22, because draw bar 1 and first snap close, 2 assembling back structures are integrated, first snap close 2 turns an angle around the first snap close axle 22 simultaneously, snap close angle 213 slips into the hole, snap close angle 33 of second snap close 3, second snap close 3 is no longer supported at snap close angle 213, second snap close 3 rotates counterclockwise around the second snap close axle 32 under spring 5 effects, cause tripping 4 from the notch 35 of second snap close 3, to be shaken off, the circuit breaker operation mechanism tripping operation, the contact mechanism 9 that drives circuit breaker is opened, and the electric arc that contact mechanism 9 produces is eliminated by arc-extinguishing mechanism 10; When circuit was short-circuited, short circuit current flow through the electromagnetic trip unit, and electromagnet moment adhesive makes armature rotate and activates draw bar 1 in the operating mechanism, and same circuit breaker is realized tripping operation.
Claims (5)
1, a kind of trip gear of circuit breaker operation mechanism, it comprise respectively hub setting on the support (6) of operating mechanism first snap close (2) with a pair of first hub setting bead (21) interact with each other and second snap close (3) with a pair of second hub setting bead (31), one hub setting similarly on support (6) corresponding and by the tripping (4) of second snap close (3) to its effect with second snap close (3), the second snap close axle (32) that one middle part is located at second snap close (3) is gone up and two ends lean against support (6) respectively, spring (5) on first snap close (2), one by interlude (11), a left side, right side section (12,13) constitute the as a whole draw bar (1) that links with first snap close (2) of being used for, it is characterized in that appointing to select and extended tenon (211) on the hub setting bead (21) in a pair of first hub setting bead (21) of described first snap close (2); The interlude (11) of described draw bar (1) offers the mortise (111) that is used for for tenon (211) insertion at the position corresponding with described tenon (211); The back side of the interlude (11) of described draw bar (1) axially offers the groove (112) that holds of first snap close axle (22) axis body that is used for for first snap close (2), and the two-phase at interlude (11) back side offers on inwall (114) and is used for the spindle nose groove (1141) that the spindle nose for the two ends of the first snap close axle (22) holds, and spindle nose groove (1141) is same straight line with the axis of groove (112).
2, the trip gear of circuit breaker operation mechanism according to claim 1 is characterized in that the side of described spindle nose groove (1141) constitutes inclined-plane (1142).
3, the trip gear of circuit breaker operation mechanism according to claim 1, the back side that it is characterized in that described interlude (11) offers and is respectively applied for the cavity (115) that a pair of first hub setting bead (21) and body bead (24) for first snap close (2) are located in, and also offers the hub setting bead groove (116) that a pair of a pair of apical margin (64) of having preset the first hub setting axis hole (61) that is used for for support (6) is located in.
4, the trip gear of circuit breaker operation mechanism according to claim 1, it is characterized in that on the described first hub setting bead (21) tenon (211) be shaped as in cuboid, the cylinder any one.
5, the trip gear of circuit breaker operation mechanism according to claim 1 is characterized in that in rectangular opening, the cylindrical hole any one of being shaped as of described mortise (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100410637A CN100428391C (en) | 2006-07-20 | 2006-07-20 | Tripping device for breaker operation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100410637A CN100428391C (en) | 2006-07-20 | 2006-07-20 | Tripping device for breaker operation mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1901125A CN1901125A (en) | 2007-01-24 |
| CN100428391C true CN100428391C (en) | 2008-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100410637A Active CN100428391C (en) | 2006-07-20 | 2006-07-20 | Tripping device for breaker operation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100428391C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064054B (en) * | 2009-11-12 | 2014-02-26 | 施耐德电器工业公司 | Thermal electromagnetic tripping device and buckle mechanism thereof |
| CN101710556A (en) * | 2009-11-26 | 2010-05-19 | 天津市百利电气有限公司 | Low-voltage moulded case circuit breaker with latch inserting into draw bar |
| CN101888067B (en) * | 2010-07-08 | 2012-07-18 | 江苏辉能电气有限公司 | Draw-out type pre-tripping device of low-voltage circuit breaker |
| ITMI20131034A1 (en) * | 2013-06-21 | 2014-12-22 | Gewiss Spa | DEVICE FOR CLOSING CONTACTS OF A SWITCH |
| CN105810525B (en) * | 2016-04-21 | 2018-06-08 | 首瑞（天津）电气设备有限公司 | Buckle releaser idle running regulating device |
| CN108133871B (en) * | 2018-01-03 | 2024-04-02 | 浙江天正电气股份有限公司 | Small-volume electronic molded case circuit breaker and traction rod thereof |
| CN109036981A (en) * | 2018-08-23 | 2018-12-18 | 无锡新宏泰电器科技股份有限公司 | A kind of breaker lock mounting bracket |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4888570A (en) * | 1987-05-18 | 1989-12-19 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
| CN1007945B (en) * | 1985-07-18 | 1990-05-09 | 西屋电气公司 | Molded case circuit breaker with an improved contoured cradle |
| US6232860B1 (en) * | 2000-06-23 | 2001-05-15 | General Electric Company | Armature for latching a circuit breaker trip unit |
| CN1409344A (en) * | 2001-09-19 | 2003-04-09 | 施耐德电器工业公司 | Improvement for trip cross rod and trip armature assembly of circuit breaker |
-
2006
- 2006-07-20 CN CNB2006100410637A patent/CN100428391C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007945B (en) * | 1985-07-18 | 1990-05-09 | 西屋电气公司 | Molded case circuit breaker with an improved contoured cradle |
| US4888570A (en) * | 1987-05-18 | 1989-12-19 | Mitsubishi Denki Kabushiki Kaisha | Circuit breaker |
| US6232860B1 (en) * | 2000-06-23 | 2001-05-15 | General Electric Company | Armature for latching a circuit breaker trip unit |
| CN1409344A (en) * | 2001-09-19 | 2003-04-09 | 施耐德电器工业公司 | Improvement for trip cross rod and trip armature assembly of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1901125A (en) | 2007-01-24 |
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