CN201408717Y - Moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit - Google Patents
Moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit Download PDFInfo
- Publication number
- CN201408717Y CN201408717Y CN 200920072738 CN200920072738U CN201408717Y CN 201408717 Y CN201408717 Y CN 201408717Y CN 200920072738 CN200920072738 CN 200920072738 CN 200920072738 U CN200920072738 U CN 200920072738U CN 201408717 Y CN201408717 Y CN 201408717Y
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- armature
- pole shoe
- damper tube
- support
- motion
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Abstract
A moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit comprises a breaker shell body, a support, a coil, a damper tube, a pole shoe and an armature iron, wherein the damper tube is arranged on an axial center of the coil, the pole shoe is arranged on the lower end of the damper tube, the pole shoe is in a rectangular block shape, the upper end of the damper tube isfixed on the lower portion of the support, the armature iron is in a strip-shape, the upper portion is connected with the support through a rotation shaft, the lower end of the armature iron is closeto one side surface of the pole shoe, the upper end of the armature iron is provided with a first counter bore, an offsetting spring is arranged in the first counter bore, an adjusting screw is arranged in the offsetting spring, and the front end of the adjusting screw is connected with the support. The moving mechanism is characterized in that the armature iron is arranged on the side surface ofthe pole sole, which forms a lateral beating mode, the axial moving of the damper tube has no affection to the motion of the armature iron, thereby the reliability is high, simultaneously the trippingforce of the armature iron can be conveniently adjusted through the adjusting screw on the other end of the armature iron and the offsetting spring.
Description
Technical field:
The utility model relates to electricity field, relates in particular to circuit breaker, particularly a kind of motion that is used for the hydraulic electromagnetic breaker magnetic loop.
Background technology:
Hydraulic electromagnetic breaker adopts the hydraulic-electromagnetic release to realize short circuit and overload protection.In the prior art, prevailing electromagnetic breaker structure is that series connection is threaded off, it is composed in series by a current sense coil and one group of contact, be provided with an oil damping pipe in the current sense coil, the oil damping pipe is non magnetic phantastron, in the oil damping pipe iron core is housed, spring and damping fluid, one end of oil damping pipe connects magnetic pole piece, and the magnetic pole piece top is provided with armature, armature interlock contact and electromagnetic mechanism, concrete, armature is arranged on the contiguous yoke, and the shape of armature adopts bending and molding, and armature can axially be attracted to move towards pole shoe, form axial clapper-type magnetic circuit, when in the coil electric current being arranged, produce magnetic flux in the yoke, magnetic pole piece attracts armature movement.This circuit breaker requires the precision of parts very high, and the height control of damping fluid requires highly in the damper tube, in case the axis direction play, when overload or short-circuit protection, armature movement and circuit breaker can not disjunctions, will lead to a disaster.
Summary of the invention:
The purpose of this utility model is to provide a kind of motion that is used for the hydraulic electromagnetic breaker magnetic loop, the described this motion that is used for the hydraulic electromagnetic breaker magnetic loop will solve in the prior art the axial bat between the armature and magnetic pole piece and close structure and influenced by the parts axial endplay and the correct technical problem of disjunction.
This motion of hydraulic electromagnetic breaker magnetic loop that is used for of the present utility model is by Shell of circuit breaker, support, coil, damper tube, pole shoe and armature constitute, be provided with moving iron core in the described damper tube, spring and damping fluid, described support, coil, damper tube, pole shoe and armature all are arranged in the Shell of circuit breaker, damper tube is arranged on the axle center of coil, wherein, described pole shoe is arranged on the lower end of described damper tube, pole shoe is the cuboid bulk, the upper end of damper tube is fixed on the bottom of described support, described armature is strip, the top of armature is connected with support by a rotating shaft, a side of the contiguous pole shoe in the lower end of armature, the upper end of armature is provided with one first hole, the axis normal in first hole is in the plane of armature, be provided with a returning spring in first hole, be provided with an adjustment screw in the described returning spring, the front end of described adjustment screw is connected with support.
Further, described armature is connected with a tripping, and described tripping is connected with the contact mechanism of hydraulic electromagnetic breaker.
Further, be symmetrically arranged with location notch in two of described pole shoe opposite flanks.
Further, the top of described armature is provided with the semicircular ring of two protrusions, and described two semicircular ring are docked with a semicircle and constituted an axis hole, and described rotating shaft is arranged in the described axis hole.
Further, the middle part of described armature is provided with square hole, and described square hole is connected with described tripping.
Further, the upper end of armature is provided with a cylindrical drum, and described first hole is positioned on the cylindrical drum central axis, and the height of cylindrical drum is greater than the thickness of armature.
Further, described pole shoe is connected with described damper tube by Welding Structure.
Operation principle of the present utility model is: when electric current was less than or equal to the rated value of circuit breaker, the magnetic flux of coil was not enough to iron core is drawn to pole shoe, and iron core, armature are all motionless, and contact is kept closed.When transshipping, when promptly electric current was greater than the rated value of circuit breaker, the suction of coil increased, make iron core begin to move to the pole shoe direction, magnetic resistance in the oil damping pipe reduces gradually during this time, and magnetic field force increases gradually, and iron core and pole-shoe face are held, be drawn to the side of pole shoe by this suction armature, when power increased to the friction that the resistance that can overcome spring and operating mechanism produce, armature was clapped with pole shoe and is closed, the release tripping, contact disconnects, the circuit breaker action.When bigger overload or short circuit current occurring, the increase of making a concerted effort of electromagnetic energy is rapid, and coil produces enough big magnetic flux, and iron core is also moving in the oil damping pipe, and armature just is attracted to pole-shoe face rapidly and makes the circuit breaker instantaneous trip.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is arranged on armature the side of pole shoe, constitute side direction and clap the form of closing, the axial endplay of damper tube is to not influence of armature movement, so reliability height, the tripping force of regulating armature easily by the adjustment screw and the returning spring of the armature other end simultaneously.
Description of drawings:
Fig. 1 is the structural representation that is used for the motion of hydraulic electromagnetic breaker magnetic loop of the present utility model.
Fig. 2 is the structural representation of the armature of the motion that is used for the hydraulic electromagnetic breaker magnetic loop of the present utility model.
Fig. 3 is the schematic perspective view of the armature of the motion that is used for the hydraulic electromagnetic breaker magnetic loop of the present utility model.
Fig. 4 is the cutaway view of A-A direction among Fig. 1.
Fig. 5 is that the motion that is used for the hydraulic electromagnetic breaker magnetic loop of the present utility model does not discharge the schematic diagram under the tripping state.
Fig. 6 is the work schematic diagram of the motion overload that is used for the hydraulic electromagnetic breaker magnetic loop of the present utility model when discharging tripping.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, the motion that is used for the hydraulic electromagnetic breaker magnetic loop of the present utility model, by the Shell of circuit breaker (not shown), support 5, coil 7, damper tube 9, pole shoe 10 and armature 4 constitute, be provided with moving iron core 6 in the described damper tube 9, spring 8 and damping fluid, described support 5, coil 7, damper tube 9, pole shoe 10 and armature 4 all are arranged in the Shell of circuit breaker, damper tube 9 is arranged on the axle center of coil 7, wherein, described pole shoe 10 is arranged on the lower end of described damper tube 9, pole shoe 10 is the cuboid bulk, the upper end of damper tube 9 is fixed on the bottom of described support 5, described armature 4 is strip, the top of armature 4 is connected with support 5 by a rotating shaft 3, a side of the contiguous pole shoe 10 in the lower end of armature 4, the upper end of armature 4 is provided with one first hole 12, the axis normal in first hole 12 is in the plane of armature 4, first hole is provided with a returning spring 2 in 12 holes, be provided with an adjustment screw 1 in the described returning spring 2, the front end of described adjustment screw 1 is connected with support 5.
Further, described armature 4 is connected with a tripping 11, and described tripping 11 is connected with the contact mechanism of hydraulic electromagnetic breaker.
Further, be symmetrically arranged with location notch 14 in two of described pole shoe 10 opposite flanks.
Further, the top of described armature 4 is provided with the semicircular ring of two protrusions, and described two semicircular ring butt joint constitutes an axis hole, and described rotating shaft 3 is arranged in the described axis hole.
Further, the middle part of described armature 4 is provided with square hole 13, and described square hole 13 is connected with described tripping 11.
Further, the upper end of armature 4 is provided with a cylindrical drum, and described first hole 12 is positioned on the cylindrical drum central axis, and the height of cylindrical drum is greater than the thickness of armature 4.
Further, described pole shoe 10 is connected with described damper tube 9 by Welding Structure.
The course of work of present embodiment is: when electric current was less than or equal to the rated value of circuit breaker, the magnetic flux of coil 7 was not enough to iron core is drawn to pole shoe 10, and iron core, armature 4 are all motionless, and contact is kept closed.When transshipping, when promptly electric current was greater than the rated value of circuit breaker, the suction of coil 7 increased, make iron core begin to move to pole shoe 10 directions, magnetic resistance in the oil damping pipe 9 reduces gradually during this time, and magnetic field force increases gradually, and iron core and pole shoe 10 faces are held, be drawn to the side of pole shoe 10 by this suction armature 4, when power increased to the friction that the resistance that can overcome spring 8 and operating mechanism produce, armature 4 was clapped with pole shoe 10 and is closed, and discharges tripping, contact disconnects, the circuit breaker action.When bigger overload or short circuit current occurring, the increase of making a concerted effort of electromagnetic energy is rapid, and coil 7 produces enough big magnetic flux, and iron core is also moving in the oil damping pipe 9, and armature 4 just is attracted to 10 of pole shoes rapidly and makes the circuit breaker instantaneous trip.
Claims (6)
1. motion that is used for the hydraulic electromagnetic breaker magnetic loop, by Shell of circuit breaker, support, coil, damper tube, pole shoe and armature constitute, be provided with moving iron core in the described damper tube, spring and damping fluid, described support, coil, damper tube, pole shoe and armature all are arranged in the Shell of circuit breaker, damper tube is arranged on the axle center of coil, it is characterized in that: described pole shoe is arranged on the lower end of described damper tube, pole shoe is the cuboid bulk, the upper end of damper tube is fixed on the bottom of described support, described armature is strip, the top of armature is connected with support by a rotating shaft, a side of the contiguous pole shoe in the lower end of armature, the upper end of armature is provided with one first hole, the axis normal in first hole is in the plane of armature, be provided with a returning spring in first hole, be provided with an adjustment screw in the described returning spring, the front end of described adjustment screw is connected with support.
2. the motion that is used for the hydraulic electromagnetic breaker magnetic loop as claimed in claim 1 is characterized in that: described armature is connected with a tripping, and described tripping is connected with the contact mechanism of hydraulic electromagnetic breaker.
3. the motion that is used for the hydraulic electromagnetic breaker magnetic loop as claimed in claim 1 is characterized in that: be symmetrically arranged with location notch in two opposite flanks of described pole shoe.
4. the motion that is used for the hydraulic electromagnetic breaker magnetic loop as claimed in claim 1 is characterized in that: the middle part of described armature is provided with square hole, and described square hole is connected with described tripping.
5. the motion that is used for the hydraulic electromagnetic breaker magnetic loop as claimed in claim 1 is characterized in that: the upper end of armature is provided with a cylindrical drum, and described first hole is positioned on the cylindrical drum central axis, and the height of cylindrical drum is greater than the thickness of armature.
6. the motion that is used for the hydraulic electromagnetic breaker magnetic loop as claimed in claim 1 is characterized in that: described pole shoe is connected with described damper tube by Welding Structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920072738 CN201408717Y (en) | 2009-05-21 | 2009-05-21 | Moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920072738 CN201408717Y (en) | 2009-05-21 | 2009-05-21 | Moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201408717Y true CN201408717Y (en) | 2010-02-17 |
Family
ID=41679662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920072738 Expired - Lifetime CN201408717Y (en) | 2009-05-21 | 2009-05-21 | Moving mechanism used for hydraulic pressure electromagnetic breaker magnet circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201408717Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894713A (en) * | 2009-05-21 | 2010-11-24 | 上海良信电器股份有限公司 | Movement mechanism of magnetic loop in hydraulic electromagnetic type breaker |
| CN103187214A (en) * | 2011-12-29 | 2013-07-03 | 上海良信电器股份有限公司 | Electromagnetic trip system of hydraulic type disconnector |
| CN109427504A (en) * | 2017-08-23 | 2019-03-05 | 上海电器股份有限公司人民电器厂 | A kind of electromagnetic type anti-rebounding device and the breaker with adjusting opening velocity function |
-
2009
- 2009-05-21 CN CN 200920072738 patent/CN201408717Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101894713A (en) * | 2009-05-21 | 2010-11-24 | 上海良信电器股份有限公司 | Movement mechanism of magnetic loop in hydraulic electromagnetic type breaker |
| CN103187214A (en) * | 2011-12-29 | 2013-07-03 | 上海良信电器股份有限公司 | Electromagnetic trip system of hydraulic type disconnector |
| CN103187214B (en) * | 2011-12-29 | 2015-06-17 | 上海良信电器股份有限公司 | Electromagnetic trip system of hydraulic type disconnector |
| CN109427504A (en) * | 2017-08-23 | 2019-03-05 | 上海电器股份有限公司人民电器厂 | A kind of electromagnetic type anti-rebounding device and the breaker with adjusting opening velocity function |
| CN109427504B (en) * | 2017-08-23 | 2023-09-12 | 上海电器股份有限公司人民电器厂 | Electromagnetic type rebound prevention device and circuit breaker with function of adjusting opening speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |