CN201199510Y

CN201199510Y - Electric leakage release

Info

Publication number: CN201199510Y
Application number: CNU2008200344606U
Authority: CN
Inventors: 王昭万
Original assignee: JIANGSU XIMENG INTELLIGENT CONTROL EQUIPMENT CO Ltd
Current assignee: Siemens Ltd China
Priority date: 2008-04-28
Filing date: 2008-04-28
Publication date: 2009-02-25
Anticipated expiration: 2018-04-28

Abstract

The utility model relates to a leakage release, which comprises a U-typed magnetic yoke, an induction coil device, an action mandril, a flexible assembly, a moving iron core and a static iron core, wherein, the induction coil device is positioned in the U-typed magnetic yoke, and comprises a coil skeleton and a coil fixed on the coil skeleton; the U-typed magnetic yoke and the coil skeleton are matched concavely and convexly and clamped mutually and tightly to form a containing cavity which is opened with a lead notch; the action mandril, the flexible assembly, the moving iron core and the static iron core are positioned in the containing cavity; the bottom of the U-typed magnetic yoke is provided with a matching hole, one end of the static iron core is positioned in the matching hole to be fixed with the U-typed magnetic yoke, and the center of the static iron core is provided with an axle hole vertical to the bottom; the moving iron core leans against the coil skeleton, the flexible assembly is positioned between the moving iron core and the static iron core, and respectively leans against the moving iron core and the static iron core; one end of the action mandril is positioned in the axle hole, and the other end thereof leans against the moving iron core. The leakage release saves materials, has few assembly procedures, fastening assembly without deformation, good stability, and flexibility and reliability, thus being a leakage release which integrates efficiency and benefit together.

Description

Leakage tripping device

Technical field

The utility model relates to the release in low-voltage electrical apparatus the release technical field, particularly earth leakage protective, more specifically, is meant a kind of leakage tripping device.

Background technology

Because in the general release, the induction coil device needs that screw is fastening, inserted sheet is pegged graft or the riveting form of splitting is assemblied on the yoke, iron core and yoke also need to peg graft or be linked on the yoke, that structure is installed is insecure, be subjected to the assembling level easily and influence the stability of whole magnetic system, simultaneously, when finishing the sensitivity of release with the adjusting form in the unsettled magnetic system, only can take time and effort, produce in using very inconvenient.

Therefore, be badly in need of a kind of installations firmly, good stability, sensitive reliable leakage tripping device.

The utility model content

Main purpose of the present utility model is exactly the problems and shortcomings at above existence, a kind of leakage tripping device is provided, this leakage tripping device can be saved material, its assembly process is few, fastening indeformable, the good stability, sensitive reliable of assembling, is the leakage tripping device that a kind of efficient, benefit integrally combine.

To achieve these goals, leakage tripping device of the present utility model has following formation:

This leakage tripping device, comprise yoke, the induction coil device, the action push rod, elastomeric element, moving iron core and static iron core, described induction coil device comprises coil rack and the coil that is fixed on the described coil rack, be characterized in, described yoke is a U type yoke, described induction coil device is arranged in described U type yoke, described U type yoke tightened with concavo-convex the cooperation mutually of described coil rack, thereby form a container cavity, have the lead notch on the described container cavity, described action push rod, described elastomeric element, described moving iron core and described static iron core are arranged in described container cavity, described U type yoke bottom is provided with mating holes, described static iron core one end is arranged in described mating holes to be fixed with described U type yoke, described static iron core center has axis hole, described axis hole axis and described bottom vertical, described moving iron core is against described coil rack, described elastomeric element bar between described moving iron core and described static iron core respectively against described moving iron core and described static iron core, described action push rod comprises first end and the second end, described first end is arranged in described axis hole, and described the second end is against described moving iron core.

Preferably, described U type yoke is provided with at least two tangs, and described coil rack is provided with at least two recesses, and described U type yoke and described coil rack cooperate chucking fastening by described tang and described recess.

Preferably, described container cavity is for only there being described mating holes and the described lead notch sealing container cavity as opening.

Preferably, a described end of described static iron core and described U type yoke riveted and fixed.

Preferably, described moving iron core has the convex snap ring, and described the second end is provided with the spill snap ring, and described convex snap ring is arranged in described spill snap ring.

Preferably, described elastomeric element is a spring, and described action push rod is arranged in described spring and wears described spring.

Preferably, described lead notch is positioned on the described U type yoke sidewall.

The beneficial effects of the utility model are specific as follows:

1, the utility model comprises yoke, induction coil device, action push rod, elastomeric element, moving iron core and static iron core, the concavo-convex cooperation chucking of yoke and induction coil device forms a container cavity, action push rod, elastomeric element, moving iron core and static iron core are arranged in described container cavity, simple in structure, can save material, assembly process is few and fastening indeformable, can be owing to assembling level etc. has influence on stability of the present utility model;

2; moving iron core of the present utility model; the action push rod; the elastomeric element three is assemblied in the induction coil device; constituted the integral body of induction coil device; the integral body of induction coil device is by the coil rack screwed pipe and coaxial the applying mechanically of static iron core that constitutes U-shaped yoke one of induction coil device; static iron core has certain positioning action to the integral body of induction coil device simultaneously; whole assembling is all in the induction coil screwed pipe of sealing; constituted the dropout action protecting device of helix tube type; make and move iron core; static iron core; spring is responded to stable coil magnetic field from sealing skeleton screwed pipe in the induction coil device; realize action reliably and reset; finish the transmission and the disappearance of power simultaneously by the action push rod, good stability.

3, induction coil device of the present utility model can produce big electromagnetic field under little electric current, realizes the sensitive reliable of action, is the release that a kind of efficient, benefit integrally combine.

Description of drawings

Fig. 1 is the cross-sectional schematic of the static iron core riveted joint yoke of a specific embodiment of the present utility model.

Fig. 2 is the partial schematic sectional view of a specific embodiment of the present utility model.

Fig. 3 is that schematic diagram is looked on the right side of specific embodiment shown in Figure 2.

Fig. 4 is the schematic top plan view of specific embodiment shown in Figure 2.

Fig. 5 is the cross-sectional schematic of A-A position among Fig. 2.

Embodiment

In order more to be expressly understood technology contents of the present utility model, now further specify as follows in conjunction with the embodiments:

See also Fig. 1～shown in Figure 5, leakage tripping device of the present utility model, comprise yoke 1, induction coil device 2, action push rod 3, elastomeric element 4, moving iron core 5 and static iron core 6, described induction coil device 2 comprises coil rack 21 and the coil 22 that is fixed on the described coil rack 21, described yoke 1 is a U type yoke, described induction coil device 2 is arranged in described U type yoke, described U type yoke tightened with described 21 concavo-convex cooperations mutually of coil rack, thereby form a container cavity 23, have lead notch 24 on the described container cavity 23, described action push rod 3, described elastomeric element 4, described moving iron core 5 and static iron core 6 are arranged in described container cavity 23, described U type yoke bottom is provided with mating holes 11, described static iron core 6 one ends are arranged in described mating holes 11 to be fixed with described U type yoke, described static iron core 6 centers have axis hole 61, described axis hole 61 axis and described bottom vertical, described moving iron core 5 is against described coil rack 21, described elastomeric element 4 between described moving iron core 5 and described static iron core 6 respectively against described moving iron core 5 and described static iron core 6, described action push rod 3 comprises first end 31 and the second end 32, described first end 31 is arranged in described axis hole 61, and described the second end 32 is against described moving iron core 5.Lead notch 24 makes things convenient for cabling to avoid line ball.

Preferably, described U type yoke is provided with at least two tangs 12, and described coil rack 21 is provided with at least two recesses 25, and described U type yoke and described coil rack 21 cooperate chucking fastening by described tang 12 and described recess 25.The recess 25 of the coil rack 21 of induction coil device 2 cooperates with the tang 12 of U-shaped yoke that to form concavo-convex cooperation 26 fastening, and the cooperation of nature removes that screw is fastening, inserted sheet is pegged graft or the riveting form of splitting is anchored on the yoke 1 from, makes the easy and sound construction of assembling.

In a specific embodiment of the present utility model, described container cavity 23 is for only there being described mating holes 11 and the described lead notch 24 sealing container cavity as opening.

In a specific embodiment of the present utility model, a described end of described static iron core 6 and described U type yoke riveted and fixed.Static iron core 6 is riveted on U-shaped yoke bottom and becomes one with it, is being used of induction coil device 2.

In a specific embodiment of the present utility model, described moving iron core 5 has convex snap ring 51, and described the second end 32 is provided with spill snap ring 33, and described convex snap ring 51 is arranged in described spill snap ring 33.

In a specific embodiment of the present utility model, described elastomeric element 4 is springs, and described action push rod 3 is arranged in described spring and wears described spring.Described spring is an iron core return-spring, under induction coil device 2 magnetic system environment, presets according to moving iron core 5, static iron core 6 and predetermined action stroke and to become to reset the helix tube type spring parameter.

In a specific embodiment of the present utility model, described lead notch 24 is positioned on the described U type yoke sidewall.See also Fig. 2,3,4 and 5, wherein Reference numeral 7 expression electric wires.

Therefore, static iron core 6 is riveted on U type yoke diapire and becomes one with it, the coil rack 21 of induction coil device 2 and U type yoke form and concavo-convexly cooperate 26 to tighten mutually and put in the U-shaped yoke, 3 grafting of action push rod are fastened on the moving iron core 5 and pass iron core return-spring, make iron core 5 corresponding with static iron core 6 positions, iron core return-spring places between moving iron core 5 and the static iron core 6 and forms the predetermined action stroke, whole action all places the sealing skeleton screwed pipe of induction coil device 2, make predefined moving iron core 5, static iron core 6, iron core return-spring reliablely and stablely moves in predefined induction coil 22 magnetic fields and resets, and finishes the transmission and the disappearance of power simultaneously by action push rod 3.

During assembling the utility model, as long as after static iron core 3 is riveted on yoke 1 diapire and becomes one with it, to move by hand iron core 5, action push rod 3, iron core return-spring is assemblied in the induction coil device 2, the coil rack 21 of induction coil device 2 and U type yoke form and concavo-convexly cooperate 26 to tighten mutually and put in the U-shaped yoke and get final product, assemble very easy, structure is fastening reliable, can not have influence on the stability of release magnetic system owing to assembling level etc., be the release that a kind of efficient, benefit integrally combine.

In use; when leakage current enters induction coil device 2; when moving iron core 5 is opposite with the magnetic field of static iron core 3 generations; moving iron core 5 overcomes the effect of iron core return-spring elastic force and moves to static iron core 6 directions, and pushing action push rod 3 triggers the residual current circuit breaker protective devices in the iron core return-spring predetermined stroke simultaneously.The magnetic system of the induction coil device 2 that presets cooperates the generation and the disappearance of the power of finishing with moving iron core 5, static iron core 6, iron core return-spring.

In sum, leakage tripping device of the present utility model can be saved material, and its assembly process is few, fastening indeformable, the good stability, sensitive reliable of assembling, is the leakage tripping device that a kind of efficient, benefit integrally combine.

In this specification, the utility model is described with reference to its certain embodiments.But, still can make various modifications obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.

Claims

1. leakage tripping device, comprise yoke, the induction coil device, the action push rod, elastomeric element, moving iron core and static iron core, described induction coil device comprises coil rack and the coil that is fixed on the described coil rack, it is characterized in that, described yoke is a U type yoke, described induction coil device is arranged in described U type yoke, described U type yoke tightened with concavo-convex the cooperation mutually of described coil rack, thereby form a container cavity, have the lead notch on the described container cavity, described action push rod, described elastomeric element, described moving iron core and described static iron core are arranged in described container cavity, described U type yoke bottom is provided with mating holes, described static iron core one end is arranged in described mating holes to be fixed with described U type yoke, described static iron core center has axis hole, described axis hole axis and described bottom vertical, described moving iron core is against described coil rack, described elastomeric element between described moving iron core and described static iron core respectively against described moving iron core and described static iron core, described action push rod comprises first end and the second end, described first end is arranged in described axis hole, and described the second end is against described moving iron core.

2. leakage tripping device according to claim 1, it is characterized in that, described U type yoke is provided with at least two tangs, and described coil rack is provided with at least two recesses, and described U type yoke and described coil rack cooperate chucking fastening by described tang and described recess.

3. leakage tripping device according to claim 1 is characterized in that, described container cavity is for only there being described mating holes and the described lead notch sealing container cavity as opening.

4. leakage tripping device according to claim 1 is characterized in that, a described end of described static iron core and described U type yoke riveted and fixed.

5. leakage tripping device according to claim 1 is characterized in that, described moving iron core has the convex snap ring, and described the second end is provided with the spill snap ring, and described convex snap ring is arranged in described spill snap ring.

6. leakage tripping device according to claim 1 is characterized in that described elastomeric element is a spring, and described action push rod is arranged in described spring and wears described spring.

7. leakage tripping device according to claim 1 is characterized in that, described lead notch is positioned on the described U type yoke sidewall.