CN107622926A - A kind of electronic type molded case circuit breaker electromagnetic system - Google Patents
A kind of electronic type molded case circuit breaker electromagnetic system Download PDFInfo
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- CN107622926A CN107622926A CN201710980765.XA CN201710980765A CN107622926A CN 107622926 A CN107622926 A CN 107622926A CN 201710980765 A CN201710980765 A CN 201710980765A CN 107622926 A CN107622926 A CN 107622926A
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- iron core
- circuit breaker
- permanent magnet
- electronic type
- molded case
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Abstract
The invention discloses a kind of electronic type molded case circuit breaker electromagnetic system; including sleeve pipe, iron core, coil, permanent magnet and reaction spring; coil is wound on iron core; and support and protection are formed in its periphery by sleeve pipe; the both ends of iron core set permanent magnet and reaction spring respectively; permanent magnet is by dividing magnetic sheet to hold iron core, and reaction spring then applies the power with electromagnetic attraction opposite direction to iron core, and the front end of iron core sets the striker that can hit circuit breaker draw bar.The electronic type molded case circuit breaker electromagnetic system of the present invention, its magnetic loop is totally-enclosed, suction during normal work by permanent magnet makes iron core be placed in closure state, when breaker meets overload or fault current, its intelligent electrical apparatus release sends signal between dropout point, the electric current flowed through in magnetic flux coil produces electromagnetic field, offsets the magnetic field of permanent magnet, and dynamic iron core promotes draw bar to realize circuit breaker tripping in the presence of reaction spring.
Description
Technical field
The present invention relates to breaker apparatus field, and in particular to a kind of electronic type molded case circuit breaker electromagnetic system.
Background technology
In modern society, every field all be unable to do without the use of electricity, and wherein distribution is an extremely important link.In distribution
In the various high and low voltage electrical equipment equipment of system application, low-voltage circuit breaker is the protection electrical equipment that a kind of usage amount is big, wide.
Low-voltage circuit breaker is made up of operating mechanism, arc-chutes, electrical apparatus release.Its course of work is that electrical apparatus release detects failure electricity
Operating mechanism is driven during stream, operating mechanism separates the contact in arc-chutes, and electric arc extinguishes in arc-chutes, realizes protection work(
Energy.The electrical apparatus release of early stage is Thermomagnetic type, and the electrical apparatus release is made up of thermal trip and magnetic release.With the development of electronic technology,
Electronic trip unit is developed since the 1960s, and is initially applied to low-voltage circuit breaker.Electronic trip unit is de- compared to pyromagnetic
Button utensil has the advantages that defencive function is more, delay precision is high, setting range is wide and drop-off to pick-up radio is high, moreover it is possible to realizes overload forecast
Alert, the function such as ground protection makes that the defencive function of low-voltage circuit breaker is more perfect, and performance is significantly improved.Hereafter grind in succession
Polytype electronic trip unit is sent, the discrete component, integrated circuit from early stage, which develop into, utilizes Microcomputer Technology
Intelligent electrical apparatus release.
Magnetic flow convertor is a kind of electromagnetic drive device, along with electronic trip unit, intelligent electrical apparatus release appearance and be born,
It is the tripping actuating device of electronic type molded case circuit breaker, an electromagnetic system containing permanent magnet.Its effect is to take off electronics
Button signal is changed into mechanical output, band pneumatic operating mechanism, realizes control of the controller to operating mechanism.
The content of the invention
It is an object of the invention to provide a kind of electronic type molded case circuit breaker electromagnetic system, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical scheme：A kind of electronic type molded case circuit breaker electromagnetic system, bag
Include：
Sleeve pipe, its both ends open, the opening at described sleeve pipe both ends are respectively equipped with upper cover plate and lower cover；
Iron core, it is arranged in described sleeve pipe, and one end of the iron core passes described sleeve pipe, and institute at the lower cover
State iron core and pass the end face of described sleeve pipe one end and be provided with striker；
Coil, it is located in described sleeve pipe and is wound on the iron core；
Permanent magnet, it is set close to the upper cover plate, and the permanent magnet, which is provided with, divides magnetic sheet, described to divide magnetic sheet described in
Upper cover plate is integrated with the iron core adhesive；
Reaction spring, it is arranged at the outside of the lower cover, one end of the reaction spring by with the lower cover
The jump ring be arrangeding in parallel is fixed, and the other end is connected with the iron core, the striker through the reaction spring and the jump ring to
Outer extension.
Preferably, support, institute are provided with for described electronic type molded case circuit breaker electromagnetic system, the periphery of the permanent magnet
State support and be provided with yoke.
Preferably, it is provided with adjusting screw for described electronic type molded case circuit breaker electromagnetic system, the yoke.
Preferably, for described electronic type molded case circuit breaker electromagnetic system, positioned at the jump ring in the striker
Outside is provided with limited block.
Preferably, formed for described electronic type molded case circuit breaker electromagnetic system, the yoke for silicon steel plate packing.
Compared with prior art, the beneficial effects of the invention are as follows：
The invention provides a kind of electronic type molded case circuit breaker electromagnetic system, its magnetic loop is totally-enclosed, during normal work
Iron core is set to be placed in closure state by the suction of permanent magnet, when breaker meets overload or fault current, its intelligent electrical apparatus release is sent
Signal between threading off point, the electric current flowed through in magnetic flux coil produce electromagnetic field, offset the magnetic field of permanent magnet, movable iron core is in counter-force
Draw bar is promoted to realize circuit breaker tripping in the presence of spring.Possess the breaker of electromagnetic system of the present invention, compact,
And the time needed for breaker disjunction action is highly shortened, short-circuit protection ability is improved, is breaker circuit protection work(
Can more fully, short circuit breaking is relatively reliable, solves the technological deficiency of existing conventional breaker of plastic casing.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention,
Wherein, 1, sleeve pipe, 2, upper cover plate, 3, lower cover, 4, iron core, 5, striker, 6, coil, 7, permanent magnet, 8, divide magnetic sheet,
9th, reaction spring, 10, jump ring, 11, support, 12, yoke, 13, adjusting screw.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, magnetic flow convertor is a helix tube type electromagnetic system containing permanent magnet, mainly by dynamic iron core 4, forever
Magnet 7, coil 6, reaction spring 9 etc. form.It is the iron core 4 in converter is in adhesive by suction caused by permanent magnet 7
Position, and rely on the counter-force of reaction spring 9 to act iron core 4, promote circuit breaker draw bar to realize by striker 5 and thread off.In electricity
When minor breaker of plastic casing is in normal condition, permanent magnet 7 produces permanent magnetic attraction to iron core 4 and holds iron core 4, and reaction spring 9 is right
Counter-force caused by iron core 4 and the suction of permanent magnet 7 are in opposite direction, at this moment because reaction spring 9 is less than forever to counter-force caused by iron core 4
Magnetic attraction, iron core 4 are firmly held on magnetic sheet 8 is divided.When being overloaded in circuit, the electric current in electronic type molded case circuit breaker
After transformer detects these fault-signals, the intelligent controller in breaker is exported straight after rectification by current transformer
Working power is flowed, signal amplification is carried out to the electric current after rectification, analog quantity, which is converted into digital quantity, inputs MCU microprocessors with pulling out
Code key is checked and regulated definite value and compared, if being more than or equal to setting valve, semaphore is automatically into trip circuit, through delay or instantaneous triggering
The coil 6 of magnetic flow convertor, when the DC current signal of intelligent controller is transported to coil 6, make the iron core 4 of activity have an electricity
Magnetic counter-force, the suction after now the suction of permanent magnet 7 is offset by back-electromagnetic force are less than the counter-force of reaction spring 9, and iron core 4, which departs from, to be divided
Magnetic sheet 8, now as working gas gap increases rapidly.Back-electromagnetic force reduces rapidly with permanent magnetic attraction, makees in the counter-force of reaction spring 9
Continue rapid outwards ejection with lower core 4 and circuit breaker draw bar is hit by striker 5, jump circuit breaker tripping and explain.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
- A kind of 1. electronic type molded case circuit breaker electromagnetic system, it is characterised in that including：Sleeve pipe, its both ends open, the opening at described sleeve pipe both ends are respectively equipped with upper cover plate and lower cover；Iron core, it is arranged in described sleeve pipe, and one end of the iron core passes described sleeve pipe, and the iron at the lower cover The end face that core passes described sleeve pipe one end is provided with striker；Coil, it is located in described sleeve pipe and is wound on the iron core；Permanent magnet, it is set close to the upper cover plate, and the permanent magnet, which is provided with, divides magnetic sheet, described to divide magnetic sheet to pass through the upper lid Plate is integrated with the iron core adhesive；Reaction spring, it is arranged at the outside of the lower cover, and one end of the reaction spring passes through parallel with the lower cover The jump ring of setting is fixed, and the other end is connected with the iron core, and the striker passes through the reaction spring and the jump ring to extension Stretch.
- 2. electronic type molded case circuit breaker electromagnetic system according to claim 1, it is characterised in that the periphery of the permanent magnet Provided with support, the support is provided with yoke.
- 3. electronic type molded case circuit breaker electromagnetic system according to claim 1, it is characterised in that the yoke, which is provided with, to be adjusted Save screw.
- 4. electronic type molded case circuit breaker electromagnetic system according to claim 1, it is characterised in that in the striker positioned at The outside of the jump ring is provided with limited block.
- 5. electronic type molded case circuit breaker electromagnetic system according to claim 1 or 2, it is characterised in that the yoke is silicon Steel disc, which folds, to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980765.XA CN107622926A (en) | 2017-10-19 | 2017-10-19 | A kind of electronic type molded case circuit breaker electromagnetic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710980765.XA CN107622926A (en) | 2017-10-19 | 2017-10-19 | A kind of electronic type molded case circuit breaker electromagnetic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107622926A true CN107622926A (en) | 2018-01-23 |
Family
ID=61091953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710980765.XA Pending CN107622926A (en) | 2017-10-19 | 2017-10-19 | A kind of electronic type molded case circuit breaker electromagnetic system |
Country Status (1)
| Country | Link |
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| CN (1) | CN107622926A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137044A (en) * | 2019-05-30 | 2019-08-16 | 天津加美特电气设备有限公司 | A kind of intelligent circuit breaker with normally-open normally-close function |
| CN110767513A (en) * | 2019-04-16 | 2020-02-07 | 天津加美特电气设备有限公司 | Intelligent circuit breaker capable of automatically tripping and tripping during power failure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010140719A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
| CN202183347U (en) * | 2011-07-06 | 2012-04-04 | 常熟开关制造有限公司(原常熟开关厂） | Magnetic flux converter |
| CN103337424A (en) * | 2013-06-19 | 2013-10-02 | 邳州市国龙电器有限公司 | Permanent magnet tripping device |
| CN204271012U (en) * | 2014-12-25 | 2015-04-15 | 常熟开关制造有限公司(原常熟开关厂） | A kind of trip gear of circuit breaker |
| CN104952672A (en) * | 2015-07-16 | 2015-09-30 | 江苏华鹏智能电气股份有限公司 | Flux transfer trip |
-
2017
- 2017-10-19 CN CN201710980765.XA patent/CN107622926A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010140719A (en) * | 2008-12-10 | 2010-06-24 | Hitachi Industrial Equipment Systems Co Ltd | Circuit breaker |
| CN202183347U (en) * | 2011-07-06 | 2012-04-04 | 常熟开关制造有限公司(原常熟开关厂） | Magnetic flux converter |
| CN103337424A (en) * | 2013-06-19 | 2013-10-02 | 邳州市国龙电器有限公司 | Permanent magnet tripping device |
| CN204271012U (en) * | 2014-12-25 | 2015-04-15 | 常熟开关制造有限公司(原常熟开关厂） | A kind of trip gear of circuit breaker |
| CN104952672A (en) * | 2015-07-16 | 2015-09-30 | 江苏华鹏智能电气股份有限公司 | Flux transfer trip |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110767513A (en) * | 2019-04-16 | 2020-02-07 | 天津加美特电气设备有限公司 | Intelligent circuit breaker capable of automatically tripping and tripping during power failure |
| WO2020211590A1 (en) * | 2019-04-16 | 2020-10-22 | 天津加美特电气设备有限公司 | Intelligent circuit breaker capable of automatically releasing and tripping in outage |
| US11908651B2 (en) | 2019-04-16 | 2024-02-20 | Tianjin Jmt Electric Equipment Co., Ltd | Intelligent circuit breaker capable of automatically releasing and tripping in power failure |
| CN110137044A (en) * | 2019-05-30 | 2019-08-16 | 天津加美特电气设备有限公司 | A kind of intelligent circuit breaker with normally-open normally-close function |
| CN110137044B (en) * | 2019-05-30 | 2024-02-02 | 天津加美特电气股份有限公司 | Intelligent circuit breaker with normally open and normally closed functions |
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Application publication date: 20180123 |