CN101877294B - Adjustable flux transfer trip - Google Patents
Adjustable flux transfer trip Download PDFInfo
- Publication number
- CN101877294B CN101877294B CN 200910137274 CN200910137274A CN101877294B CN 101877294 B CN101877294 B CN 101877294B CN 200910137274 CN200910137274 CN 200910137274 CN 200910137274 A CN200910137274 A CN 200910137274A CN 101877294 B CN101877294 B CN 101877294B
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- China
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- push rod
- permanent magnet
- spring
- solenoid
- carrier rod
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Abstract
The invention relates to an adjustable flux transfer trip comprising a permanent magnet (3), an electromagnetic coil (8), a spring (2) and a carrier rod (10), wherein the permanent magnet (3) and the electromagnetic coil (8) are encircled by magnetic yokes (1) and (6). The spring (2) and the carrier rod (10) are penetrated in the permanent magnet (3) and the electromagnetic coil (8) along the axial direction of the electromagnetic coil (8), and one end of the carrier rod (10) is combined with one end of the spring (2). The carrier rod (10) also comprises an adjustable carrier rod head (9), the carrier rod head (9) forms the end of the carrier rod (10) jointed with the spring (2) and is spirally connected to the carrier rod (10) through a screw nail (11), and the relative positions of the carrier rod head (9) and the carrier rod (10) in the axial direction of the electromagnetic coil (8) can be adjusted through the screw nail (11).
Description
Technical field
The present invention relates to a kind of adjustable flux transfer trip, relate in particular to a kind of adjustable flux transfer trip that is used as the executive component of breaker electronic release.
Background technology
Circuit breaker needs an executive component to carry out the dropout action of open circuit in the situations such as overload or short circuit usually.Usually use magnetic flow convertor as this executive component, magnetic flow convertor comprises permanent magnet and solenoid, and is through spring and push rod in described permanent magnet and the described solenoid.The push rod combined spring, and owing to the elastic force of spring is held by permanent magnet before overload or short circuit generation the suction of push rod less than permanent magnet.When overload or short circuit generation, instrument transformer can send to electronic trip unit with the current signal that overload or short circuit occur.Subsequently, the CPU of electronic trip unit sends an electronic pulse signal to magnetic flow convertor again, thereby so that described solenoid energising, and produce magnetic flux.The opposite direction of the magnetic flux that this magnetic flux and described permanent magnet produce, thus the suction of permanent magnet to push rod greatly reduced.At this moment, because the elastic force of spring so described push rod has obtained release, and impels mechanism's open circuit in electromagnetic transducer downstream greater than the suction of permanent magnet to push rod.The problem of this design is, because the discreteness of tripping force and starting resistor is large, the tripping operation energy shortage that may cause converter, namely after described part is installed, may since the ratio between the magnetic force of the elastic force of spring and permanent magnet not in the reasonable scope, and can't be at the rear in time open circuit of solenoid energising, so circuit breaker can not be brought into play due effect.This normally causes by the factor of two aspects, the one, and the difference of different magnet on magnetic force, the 2nd, the existence of the leakage field of solenoid.Current, be used to circuit breaker in order to prevent underproof converter, behind described assembling parts, must use corresponding checkout equipment that magnetic flow convertor is detected.Yet for the consideration of the factors such as cost, mostly the yoke of magnetic flow convertor periphery is that the riveted joint forms, so can't dismantle, therefore inevitable some magnetic flow convertor is scrapped after assembling.These underproof magnetic flow convertors will cause a large amount of wastes, and increase the manufacturing cost of circuit breaker.For a long time, this area exists all the time for the needs that improve the magnetic flow convertor rate of finished products.
Summary of the invention
The object of the present invention is to provide a kind of adjustable flux transfer trip.
According to one aspect of the present invention, described adjustable flux transfer trip comprises permanent magnet, solenoid, spring and push rod.Described permanent magnet and described solenoid are surrounded by yoke, and described spring and described push rod axially being through in described permanent magnet and the described solenoid along described solenoid.Described push rod comprises an adjustable push rod head.Described push rod head joins described push rod to spirally by screw, and fixes with described screw, by rotate described screw can regulate described push rod head and described push rod described coil axially on relative position.The described push rod head of described push rod is as a described spring of engaged at end of described push rod, and downstream mechanism can reset described push rod by another end of described push rod.
According to again one side of the present invention, described push rod head and described screw shaped are integral.
The invention has the advantages that, can after described adjustable flux transfer trip assembling is complete, come described adjustable flux transfer trip is regulated by rotating described screw, so that it obtains enough tripping operation energy, thereby guarantee instructions for use.Do like this rate of finished products that has improved product and make efficient, saved cost, saved the time.
Description of drawings
In conjunction with the following drawings, the features and advantages of the present invention will become clearer.Wherein:
Fig. 1 has shown the cutaway view of the adjustable flux transfer trip before overload or short circuit occur;
Fig. 2 has shown the cutaway view of the adjustable flux transfer trip after overload or short circuit occur, and wherein the relative distance of push rod head and push rod is minimum;
Fig. 3 has shown the cutaway view of the adjustable flux transfer trip after overload or short circuit occur, and wherein the relative position of push rod head and push rod is through overregulating.
Embodiment
Fig. 1 has shown the adjustable flux transfer trip according to one embodiment of the present invention.This magnetic flow convertor can change magnetic energy into mechanical energy, and is typically used as the executive component of breaker electronic release, with open circuit when the situation such as overload or short circuit occurs.
In adjustable flux transfer trip of the present invention, yoke 1 and yoke 6 are surrounded permanent magnet 3 and solenoid 8, with the magnetic line of force of constraint permanent magnet 3 and solenoid 8.Cushion block 4 is located between permanent magnet 3 and the coil 8 so that the suction of the magnetic pole end face of permanent magnet 3 is larger.Spring 2 axially is through in permanent magnet 3 and the solenoid 8 along solenoid 8.Pressure sensing adhesive band 7 is formed on the outside of solenoid 8, to play insulating effect.Push rod 10 is enclosed within the solenoid 8, and has push rod head 9 on the end of push rod 10.An end of screw 11 is fixed to push rod head 9, and the other end of screw 11 joins push rod 10 spirally to, and has groove at the end face of this end.Can be with coming by this groove rotary screw such as instruments such as screwdrivers.As shown in Figure 1, before the situations such as overload or short circuit occured, solenoid 8 was not switched on, thereby does not also generate magnetic field.Because the elastic force of spring 2 is less than the suction of permanent magnet, so push rod 10 is held by permanent magnet 3, this moment, the circuit at circuit breaker place was in closure state.One end of electric wire 13 accesses adjustable flux transfer trip from the outside, and is electrically connected with solenoid 8, and the other end of electric wire 13 is connected to the breaker electronic release.The liner 5 that is used for insulation be arranged on coil rack 12 and the cushion block 4 that formed by soft iron between.When overload or short circuit generation, electronic trip unit is behind the current signal of receiving overload that instrument transformer sends or short circuit, CPU by electronic trip unit is sent to solenoid 8 with an electronic pulse signal with the direction of electric current I among Fig. 2 and Fig. 3 again, thus make solenoid 8 electric.The solenoid 8 after electric will produce the opposite magnetic flux of flow direction that produces with permanent magnet.At this moment, total magnetic force that push rod 10 is subject to is less than the elastic force of spring 2, so making a concerted effort of magnetic force and elastic force can be with the direction promotion push rod 10 of power F among Fig. 2 and with its release.The below motion of push rod 10 after the release in Fig. 1, and then the mechanism's (not shown) that drives the downstream impels the circuit breaker open circuit, and finally form such as Fig. 2 or state shown in Figure 3.Make again closure of circuit, only need stop after solenoid 8 power supplies, operation downstream mechanism (not shown) resets push rod 10 to the direction promotion push rod 10 of permanent magnet 3.
Fig. 3 has shown the state of the adjustable flux transfer trip after the debugging.Debug adjustable flux transfer trip, then need after its assembling is complete, to be placed on the corresponding checkout equipment (not shown), and by coming rotary screw 11 in the groove that screwdriver is inserted screw 11 1 ends.The virtual voltage of the magnetic flow convertor action that can draw by checkout equipment by comparing with required voltage, can rotary screw 11 changes the reduction length of spring, until it is roughly the same to discharge virtual voltage and the required voltage of push rod 10.Debug complete after, plug 14 is connected to electronic trip unit, and magnetic flow convertor is fixed in the circuit breaker.
Although more than showed embodiments of the present invention, described execution mode is not intended to show all possible form of the present invention.In addition, the content in this specification is descriptive, and nonrestrictive.Those skilled in the art can make variations and modifications to the content of this specification, and do not depart from the scope of purport of the present invention and claim.
Claims (2)
1. adjustable flux transfer trip comprises:
Permanent magnet (3) and solenoid (8), described permanent magnet (3) and described solenoid (8) are surrounded by yoke (1,6);
Spring (2) and push rod (10), described spring (2) and described push rod (10) axially are through in described permanent magnet (3) and the described solenoid (8) end of the described spring of engaged at end (2) of described push rod (10) along described solenoid (8);
It is characterized in that:
Described push rod (10) also comprises an adjustable push rod head (9), described push rod head (9) consists of that end of the described push rod (10) that engages with described spring (2), and joins spirally described push rod (10) to by screw (11); By rotate described screw (11) can regulate described push rod head (9) and described push rod (10) described solenoid (8) axially on relative position.
2. adjustable flux transfer trip as claimed in claim 1 is characterized in that, described push rod head (9) forms one with described screw (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910137274 CN101877294B (en) | 2009-04-30 | 2009-04-30 | Adjustable flux transfer trip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910137274 CN101877294B (en) | 2009-04-30 | 2009-04-30 | Adjustable flux transfer trip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101877294A CN101877294A (en) | 2010-11-03 |
| CN101877294B true CN101877294B (en) | 2013-05-29 |
Family
ID=43019819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910137274 Expired - Fee Related CN101877294B (en) | 2009-04-30 | 2009-04-30 | Adjustable flux transfer trip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101877294B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2531183T3 (en) * | 2011-10-06 | 2015-03-11 | Abb Technology Ag | Switch and associated switch |
| CN108074784B (en) * | 2016-11-09 | 2019-09-20 | 浙江正泰电器股份有限公司 | Magnetic flow convertor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406328Y (en) * | 2000-02-29 | 2000-11-15 | 肖建华 | Permanent magnetic operation mechanism |
| CN1290949A (en) * | 1999-06-24 | 2001-04-11 | Abb专利有限公司 | Electromagnet breaker |
| CN2550896Y (en) * | 2002-06-01 | 2003-05-14 | 常熟开关厂 | Electromagnetic actuating mechanism for breaker |
| CN2591762Y (en) * | 2002-12-24 | 2003-12-10 | 天津市百利低压电器有限公司 | Magnetic flux convertor |
| CN101030507A (en) * | 2006-02-27 | 2007-09-05 | 富士电机机器制御株式会社 | Electromagnetic release |
| CN201038044Y (en) * | 2007-03-21 | 2008-03-19 | 鞍山市宏源自动化工程有限公司 | Permanent-magnetic operating mechanism |
| CN201060822Y (en) * | 2007-03-30 | 2008-05-14 | 天津市百利电气有限公司 | Plastic shell type breaker flux convertor with multifunctional push pedal |
-
2009
- 2009-04-30 CN CN 200910137274 patent/CN101877294B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1290949A (en) * | 1999-06-24 | 2001-04-11 | Abb专利有限公司 | Electromagnet breaker |
| CN2406328Y (en) * | 2000-02-29 | 2000-11-15 | 肖建华 | Permanent magnetic operation mechanism |
| CN2550896Y (en) * | 2002-06-01 | 2003-05-14 | 常熟开关厂 | Electromagnetic actuating mechanism for breaker |
| CN2591762Y (en) * | 2002-12-24 | 2003-12-10 | 天津市百利低压电器有限公司 | Magnetic flux convertor |
| CN101030507A (en) * | 2006-02-27 | 2007-09-05 | 富士电机机器制御株式会社 | Electromagnetic release |
| CN201038044Y (en) * | 2007-03-21 | 2008-03-19 | 鞍山市宏源自动化工程有限公司 | Permanent-magnetic operating mechanism |
| CN201060822Y (en) * | 2007-03-30 | 2008-05-14 | 天津市百利电气有限公司 | Plastic shell type breaker flux convertor with multifunctional push pedal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101877294A (en) | 2010-11-03 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130529 Termination date: 20170430 |