CN201829432U - Releasing execution mechanism of circuit breaker - Google Patents
Releasing execution mechanism of circuit breaker Download PDFInfo
- Publication number
- CN201829432U CN201829432U CN 201020555913 CN201020555913U CN201829432U CN 201829432 U CN201829432 U CN 201829432U CN 201020555913 CN201020555913 CN 201020555913 CN 201020555913 U CN201020555913 U CN 201020555913U CN 201829432 U CN201829432 U CN 201829432U
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- China
- Prior art keywords
- push rod
- rotating shaft
- circuit breaker
- dropout
- output device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a releasing execution mechanism of a circuit breaker, which comprises a magnetic flux converter and a releasing output device, wherein a mechanical force amplification device is arranged between the magnetic flux converter and the releasing output device, the mechanical force amplification device comprises a rotation shaft, a push rod and a substrate, wherein the rotation shaft is reset by a torsion spring; the push rod is drawn by the rotation shaft and stores energy through an energy storage spring, and the releasing output device is driven by the push rod to move; the substrate is used for supporting the rotation shaft and the push rod; and the magnetic flux converter can strike the rotation shaft so as to drive the rotation shaft to rotate, the push rod is released after the rotation shaft rotates, and the push rod drives the releasing output device to move under the effect of the energy storage spring. The mechanical force amplification device amplifies and transfers a signal force provided by the magnetic flux converter to drive a circuit breaker mechanism so as to disconnect the circuit breaker.
Description
Technical field
The utility model relates to the dropout actuator of circuit breaker, belongs to the low-voltage electrical apparatus field.
Background technology
The dropout actuator of circuit breaker generally carries out trip command by magnetic flow convertor, generate an electromagnetic field after the magnetic flow convertor energising, make its motion unshakable in one's determination produce impulsive force, this impulsive force passes to the dropout semiaxis of breaker mechanism by a push rod or transmission mechanism, makes circuit breaker tripping.No matter be, because the damping forces such as friction of its generation cause the final impulsive force that the impulsive force of mechanism's dropout semiaxis is produced less than magnetic flow convertor by push rod or by transmission mechanism.Circuit breaker frame is big more, and the tripping force demand of mechanism is just big more, and the tripping force that needs magnetic flow convertor to produce is big more, and the energy that magnetic flow convertor needs is big more, and the volume of magnetic flow convertor is big more, and the power requirement that needs is high more.
There is following drawback in above-mentioned circuit breaker tripping actuator:
1. for different frameworks, need with different magnetic flow convertors, magnetic flow convertor is various in style, and is not only uneconomical but also be unfavorable for production management;
2. circuit breaker frame is big more, and corresponding operating mechanism tripping force demand is big more, and the magnetic flow convertor power demand is big more, and volume is big more;
3. magnetic flow convertor power is provided by release wiring board power supply, and the wiring board power supply derives from instrument transformer, and the increase of magnetic flow convertor power directly increases the load of instrument transformer;
4. for enough big power is provided, limit the selection of capacitance component in the wiring board, the shortening in limiting capacitance charging interval directly influences the circuit breaker failure opening velocity simultaneously.
5. promptly use different magnetic flow convertors, because the restriction in power supply and space, its power output is also unsuitable excessive, and the time that beater mechanism is threaded off is difficult for shortening.
The utility model content
The utility model is intended to design a kind of dropout actuator of circuit breaker, and it can use low power magnetic flow convertor unified, small size, realizes the breaker mechanism rapid-releasing function of different frames, different tripping force demands; And can adjust the power multiplication factor, improve breaking speed.
For this reason, the utility model is by the following technical solutions:
A kind of dropout actuator of circuit breaker comprises magnetic flow convertor, dropout output device, it is characterized in that: between described magnetic flow convertor and dropout output device, a mechanical force amplifying device is housed, this mechanical force amplifying device comprises: rotating shaft; Push rod, by the described rotating shaft system of pulling and by the energy storage device energy pre-storage, described dropout output device is driven by this push rod and moves; Pedestal is used to support above-mentioned rotating shaft and push rod; Described magnetic flow convertor can drive rotating shaft and rotating shaft is rotated, and this rotating shaft rotates the back and discharges described push rod, and after push rod was released, push rod drove described dropout output device under the effect of its energy storage device.
Further:
Described rotating shaft has the latch part of restriction pushrod movement and accepts the lock section of separating of described magnetic flow convertor driving; Described push rod has by the lock section of the latch part of the rotating shaft system of pulling and drives the drive division of described dropout output device.
Latch part on the described rotating shaft is the groove structure, and the lock section of separating on the rotating shaft is a bulge-structure; Lock section on the described push rod be with described rotating shaft on the bulge-structure of groove structure overlap joint, the drive division on the push rod is the sidewall platform.
Described push rod is installed in rotation on the pedestal, and described energy storage device is a spring, and its two ends are connected with pedestal with push rod respectively; Described rotating shaft is installed in rotation between pedestal and the support, and this support is fixed on the pedestal; Described rotating shaft is resetted by torsion spring, and the two ends of torsion spring lay respectively in the mounting groove of the mounting groove of rotating shaft and pedestal.
Bulge-structure on the described rotating shaft and described magnetic flow convertor overlap joint.
Sidewall platform on the described push rod and described dropout output device overlap joint.
The utlity model has following advantage:
1. owing to can adjust by the size of revising the power that torsion spring provides magnetic flow convertor the arm of force of rotating shaft the moment of rotating shaft and magnetic flow convertor, therefore can use low power magnetic flow convertor unified, small size, realize the breaker mechanism rapid-releasing function of different frames, different tripping force demands;
2. because the pulling force of energy-stored spring can increase, therefore can provide bigger impulsive force under the situation that rotating shaft intensity allows, shorten the circuit breaker tripping time in right amount, improve breaker open operation speed.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram;
Fig. 2 is the structural representation of the utility model embodiment shaft;
Fig. 3 is the structural representation of push rod among the utility model embodiment;
Fig. 4 is the part-structure schematic diagram of pedestal among the utility model embodiment.
Embodiment
The utility model is a kind of dropout actuator of circuit breaker, comprise magnetic flow convertor, dropout output device, it is characterized in that: between described magnetic flow convertor and dropout output device, a mechanical force amplifying device is housed, this mechanical force amplifying device comprises: rotating shaft; Push rod, by the described rotating shaft system of pulling and by the energy storage device energy pre-storage, described dropout output device is driven by this push rod and moves; Pedestal is used to support above-mentioned rotating shaft and push rod; Described magnetic flow convertor can drive rotating shaft and rotating shaft is rotated, and this rotating shaft rotates the back and discharges described push rod, and after push rod was released, push rod drove described dropout output device under the effect of its energy storage device.
Describe in detail below in conjunction with accompanying drawing.
The dropout actuator of circuit breaker of the present utility model comprises magnetic flow convertor 2, dropout output device 4, is contained in the mechanical force amplifying device 3 between magnetic flow convertor 2 and the dropout output device 4.
Mechanical force amplifying device 3 comprises rotating shaft 3.1, push rod 3.2, spring 3.3, torsion spring 3.4, pedestal 3.5, support 3.6.Wherein:
A groove 3.1.1 is arranged, a protruding 3.1.2, a cylindrical projection groove 3.1.3 on the rotating shaft 3.1.Groove 3.1.1 is the latch part of restriction push rod 3.2 motions.Projection 3.1.2 be accept magnetic flow convertor 2 impact separate the lock section, it overlaps with magnetic flow convertor 2.
One protruding 3.2.1 is arranged, a sidewall platform 3.2.2, a crossbeam 3.2.3, a 3.2.4 on the push rod 3.2.Projection 3.2.1 is the lock section of the system of pulling of the groove 3.1.1 (latch part) by rotating shaft.Sidewall platform 3.2.2 is for promoting the drive division of dropout output device 4, and itself and dropout output device 4 overlap.。
Porose 3.5.1 on the pedestal 3.5, cylindrical projection groove 3.5.2, crossbeam 3.5.3.
Support 3.6 is fixed on the pedestal 3.5.
Push rod 3.2 is installed in rotation on the hole 3.5.1 of pedestal, can be around its 3.2.4 rotation.Rotating shaft 3.1 is positioned at push rod 3.2 tops, is installed in rotation between pedestal 3.5 and the support 3.6, and groove 3.1.1 is positioned at protruding 3.2.1 top.Torsion spring 3.4 is enclosed within on the rotating shaft 3.1, and the two ends of torsion spring lay respectively among the mounting groove 3.5.2 of the mounting groove 3.1.3 of rotating shaft and pedestal.One end hook of energy-stored spring 3.3 lives in the crossbeam 3.2.3 of push rod, and the other end hooks the crossbeam 3.5.3 of pedestal.
Energy-stored spring 3.3 is in extended state under the reset mode, rotating shaft 3.1 rotates to groove 3.1.1 under the effect of torsion spring 3.4 vertical, because the pulling force of energy-stored spring 3.3 makes push rod 3.2 around its 3.2.4 rotation, be overlapped on until the protruding 3.2.1 of push rod on the groove 3.1.1 of rotating shaft, the moment of 3.3 pairs of push rods 3.2 of energy-stored spring this moment shifts and is the internal stress of rotating shaft 3.1.
When circuit breaker failure is threaded off, the protruding 3.1.2 of rotating shaft is impacted in magnetic flow convertor 2 actions, formed moment is greater than the moment of 3.4 pairs of rotating shafts of torsion spring, make rotating shaft rotation, when the groove 3.1.1 of rotating shaft breaks away from the protruding 3.2.1 of push rod, just discharge push rod 3.2, under the effect of energy-stored spring 3.3, push rod 3.2 rotations, the sidewall platform 3.2.2 of push rod 3.2 and dropout output device 4 overlap joints form interlock, and dropout output device 4 is moved tripping mechanism 1 and is made circuit breaker tripping.
Under the situation that rotating shaft 3.1 intensity allow, the pulling force of energy-stored spring 3.3 can increase to satisfy the circuit breaker tripping requirement, the power that needs magnetic flow convertor 2 to provide so just can keep a smaller value, and its big I is adjusted by the moment of 3.4 pairs of rotating shafts 3.1 of modification torsion spring and the arm of force of 2 pairs of rotating shafts 3.1 of magnetic flow convertor.So can alleviate the burden that the parts of energy are provided for magnetic flow convertor 2, so that select the better littler energy supply parts of more reliable volume; Because the pulling force of energy-stored spring 3.3 can increase, provide bigger impulsive force simultaneously under the situation that rotating shaft 3.1 intensity allow, therefore can shorten the circuit breaker tripping time in right amount, improve breaker open operation speed.
In a word, adopt the dropout actuator of the utility model design can realize that all frameworks of magnetic flow convertor are general.
Claims (6)
1. the dropout actuator of a circuit breaker comprises magnetic flow convertor, dropout output device, it is characterized in that:
Between described magnetic flow convertor and dropout output device, a mechanical force amplifying device is housed, this mechanical force amplifying device comprises:
Rotating shaft;
Push rod, by the described rotating shaft system of pulling and by the energy storage device energy pre-storage, described dropout output device is driven by this push rod and moves;
Pedestal is used to support above-mentioned rotating shaft and push rod;
Described magnetic flow convertor can drive rotating shaft and rotating shaft is rotated, and this rotating shaft rotates the back and discharges described push rod, and after push rod was released, push rod drove described dropout output device under the effect of its energy storage device.
2. the dropout actuator of circuit breaker according to claim 1 is characterized in that:
Described rotating shaft has the latch part of restriction pushrod movement and accepts the lock section of separating of described magnetic flow convertor driving;
Described push rod has by the lock section of the latch part of the rotating shaft system of pulling and drives the drive division of described dropout output device.
3. the dropout actuator of circuit breaker according to claim 2 is characterized in that:
Latch part on the described rotating shaft is the groove structure, and the lock section of separating on the rotating shaft is a bulge-structure;
Lock section on the described push rod be with described rotating shaft on the bulge-structure of groove structure overlap joint, the drive division on the push rod is the sidewall platform.
4. the dropout actuator of circuit breaker according to claim 3 is characterized in that:
Described push rod is installed in rotation on the pedestal, and described energy storage device is a spring, and its two ends are connected with pedestal with push rod respectively;
Described rotating shaft is installed in rotation between pedestal and the support, and this support is fixed on the pedestal;
Described rotating shaft is resetted by torsion spring, and the two ends of torsion spring lay respectively in the mounting groove of the mounting groove of rotating shaft and pedestal.
5. the dropout actuator of circuit breaker according to claim 3 is characterized in that:
Bulge-structure on the described rotating shaft and described magnetic flow convertor overlap joint.
6. the dropout actuator of circuit breaker according to claim 3 is characterized in that:
Sidewall platform on the described push rod and described dropout output device overlap joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020555913 CN201829432U (en) | 2010-09-30 | 2010-09-30 | Releasing execution mechanism of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020555913 CN201829432U (en) | 2010-09-30 | 2010-09-30 | Releasing execution mechanism of circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829432U true CN201829432U (en) | 2011-05-11 |
Family
ID=43967952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020555913 Expired - Lifetime CN201829432U (en) | 2010-09-30 | 2010-09-30 | Releasing execution mechanism of circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829432U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446666A (en) * | 2010-09-30 | 2012-05-09 | 北京人民电器厂有限公司 | Trip execution mechanism of circuit breaker |
| CN102931040A (en) * | 2011-08-09 | 2013-02-13 | 上海良信电器股份有限公司 | Locking and unlocking mechanism used for circuit breaker |
| CN106356264A (en) * | 2016-08-29 | 2017-01-25 | 天津市百利电气有限公司 | Tripping and resetting device of air circuit breaker controller |
-
2010
- 2010-09-30 CN CN 201020555913 patent/CN201829432U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102446666A (en) * | 2010-09-30 | 2012-05-09 | 北京人民电器厂有限公司 | Trip execution mechanism of circuit breaker |
| CN102446666B (en) * | 2010-09-30 | 2014-08-06 | 北京人民电器厂有限公司 | Trip execution mechanism of circuit breaker |
| CN102931040A (en) * | 2011-08-09 | 2013-02-13 | 上海良信电器股份有限公司 | Locking and unlocking mechanism used for circuit breaker |
| CN102931040B (en) * | 2011-08-09 | 2015-03-25 | 上海良信电器股份有限公司 | Locking and unlocking mechanism used for circuit breaker |
| CN106356264A (en) * | 2016-08-29 | 2017-01-25 | 天津市百利电气有限公司 | Tripping and resetting device of air circuit breaker controller |
| CN106356264B (en) * | 2016-08-29 | 2018-01-23 | 天津市百利电气有限公司 | The dropout of omnipotent breaker controller and resetting means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110511 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |