CN106298363B - A kind of explosive type dc circuit breaker based on pulse-electromagnetic force - Google Patents
A kind of explosive type dc circuit breaker based on pulse-electromagnetic force Download PDFInfo
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- CN106298363B CN106298363B CN201610866708.4A CN201610866708A CN106298363B CN 106298363 B CN106298363 B CN 106298363B CN 201610866708 A CN201610866708 A CN 201610866708A CN 106298363 B CN106298363 B CN 106298363B
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- Prior art keywords
- main contact
- pulse
- circuit breaker
- explosive type
- mounting groove
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
Abstract
The invention discloses a kind of explosive type dc circuit breaker based on pulse-electromagnetic force, including pulse magnet, main contact and main contact support ring.By producing stronger pulsed magnetic field after pulse magnet applies pulse current, go out vortex in main contact surface induction, this vortex interacts with pulsed magnetic field, pulse-electromagnetic force radially is produced on main contact, so that V-groove part is broken rapidly on main contact, and fracture is turned-out around the fulcrum of main contact support ring, main contact disconnects, and realizes rapid disconnection dc circuit breaker.Discharge-induced explosion generated reactive gas is occurred for driving force to blow the scheme of breaker by the present invention by original explosive charge or aluminium wire and water, it is transformed into the scheme by pulse-electromagnetic force, overcome the defects of high to part requirement in original explosive type dc circuit breaker, and power supply and power supply requirement to providing pulse current significantly reduce, while the main circuit of higher voltage and electric current can be disconnected.
Description
Technical field
It is straight more particularly to a kind of explosive type based on pulse-electromagnetic force the present invention relates to a kind of explosive type dc circuit breaker
Flow breaker.
Background technology
Explosive type dc circuit breaker in the world at present, a kind of is to ignite the thunder being previously positioned in explosion chamber by triggering
Pipe and explosive, contact is separated using explosive force.But detonator, explosive are tubing products, particularity of its purchase and management etc. is considered
Reason, it can not widely use；Another kind forms pressure using the chemical reaction of aluminium wire and water release gas and blows up contact, and its is right
The sealing requirements of explosion chamber are higher, and maintenance and operation is difficult.
The content of the invention
For disadvantages described above, the present invention provide a kind of explosive type dc circuit breaker based on pulse-electromagnetic force aim to solve the problem that by
In using gas or gunpowder explosion to cause existing direct current cutout to component parts requirement as driving force in the prior art
High technical problem.
To achieve the above object, the present invention provides a kind of explosive type dc circuit breaker based on pulse-electromagnetic force, including one
Individual pulse magnet, a main contact and multiple main contact support rings, main contact are placed on outside pulse magnet, multiple main contact supports
It is located on outside main contact.
Pulse magnet, pulsed magnetic field is provided for being disconnected for main contact；
Main contact, it is cylindrical in shape, multiple V-grooves is provided with main contact surface, main contact is divided into connected multiple rings by V-groove
Shape part；
Main contact support ring, in addition to the annular section positioned at main contact both ends, main contact support is cased with per annular section
Ring, for supporting main contact when main contact is outwards expanded by pulse-electromagnetic force, make main contact disconnect and it is turned-out.
When receiving action command, stronger pulsed magnetic field is produced after applying pulse current to pulse magnet, pulsed magnetic field makes
Main contact surface induction goes out vortex, and vortex interacts with pulsed magnetic field, and pulse electricity radially is produced on main contact
Magnetic force, the V-groove part of main contact is broken rapidly under the support of main contact support ring, and main contact gap touches around main
The contact point of head support ring and main contact is turned-out, and main contact disconnects, the rapid master for disconnecting explosive type dc circuit breaker and being connected
Loop.
Further, in addition to upper clamping element, lower clamping element and explosion chamber drum, it is provided with the first mounting groove on upper clamping element
With the second mounting groove, the 3rd mounting groove and the 4th mounting groove are provided with lower clamping element；Explosion chamber drum is placed on multiple main contact branch
Outside pushing out ring, above-mentioned pulse magnet one end for being cased with main contact is installed in the first mounting groove, and the other end is installed on the 3rd mounting groove
In, explosion chamber drum one end is installed on the second mounting groove, and the other end is installed on the 4th mounting groove, upper clamping element, lower clamping element and
Explosion chamber drum forms the explosion chamber of closing, and fragment is to ectocine during for preventing that explosive type direct-current short circuit device from disconnecting, simultaneously
It can prevent the extraneous factors such as dust and steam from disturbing, ensure the work of explosive type dc circuit breaker in the secure state.
Further, in addition to pulse magnet positive terminal and pulse magnet negative terminal, described pulse magnet just connect
Terminal and pulse magnet negative terminal are connected with pulse magnet, the power supply inlet port as pulse magnet.
Further, in addition to main contact positive terminal and main contact negative terminal, described main contact positive terminal with
Main contact one end is connected, and main contact negative terminal is connected with the main contact other end, the access interface as main circuit.
Further, in addition to multiple clamping insulated bolts, multiple through holes, lower clamping element are evenly distributed with upper clamping element
On be evenly distributed with multiple screwed holes, clamp insulated bolt and be connected by the through hole of upper clamping element with the screwed hole of lower clamping element.
Further, the material of main contact is aluminium, and aluminum has good electric conductivity simultaneously easily broken, is advantageous to improve
Explosive type dc circuit breaker opening velocity.
Further, the main contact support ring is epoxy insulation material.
By the contemplated above technical scheme of the present invention, compared with prior art, outstanding advantages of the invention are：
1st, dc circuit breaker is disconnected as driving force using pulse-electromagnetic force, compares the explosive type open circuit of detonator and explosive
Device is safer, and avoid material purchase, transport, in preservation the shortcomings that, use can be widely popularized；
2nd, compare aluminium wire and release explosive type breaker of the gas as driving force with water reaction, it is provided by the invention with pulse
Electromagnetic force is not high to explosion chamber sealing requirements as the dc circuit breaker of driving force so that when component is changed in installation more
It is convenient；
3rd, due to being disconnected as explosive type dc circuit breaker by the use of pulse-electromagnetic force caused by pulse current in the present invention
Driving force, hydrogen is produced compared to by making aluminium wire burn to aluminium wire input pulse electric current and aluminium is reacted with water, is made with hydrogen
It is less demanding therefore right to the amplitude of pulse current in the present invention for the technical scheme that dc circuit breaker is disconnected for driving force
Power supply and power control part performance and the size requirement of the pulse current of offer significantly reduce.
4th, due to being disconnected as explosive type dc circuit breaker by the use of pulse-electromagnetic force caused by pulse current in the present invention
Driving force, its driving force are larger so that explosive type dc circuit breaker provided by the invention can apply to high-tension circuit, Ke Yiguan
Broken height reaches 120kA direct current long pulse electric current, and it is higher to turn off voltage.
5th, dc circuit breaker of the electromagnetic force as driving force is converted into compared to using continuous current, pulse current can produce
Bigger pulse-electromagnetic force, accelerates the responsiveness of explosive type dc circuit breaker, while can reduce magnet volume.
6th, the pulse magnet life-span in the present invention is high, may be reused, and cost is low, changes also very simple so that this
The explosive type dc circuit breaker that invention provides also has the advantages of cost is low, and part replacement is easy concurrently.
Brief description of the drawings
Fig. 1 is the profile of the explosive type dc circuit breaker provided by the invention based on pulse-electromagnetic force, wherein, 1, pulse
Magnet, 2, pulse magnet positive terminal, 3, pulse magnet negative terminal, 4, main contact, 5, main contact positive terminal, 6, main contact
Negative terminal, 7, main contact pushing out ring, 8, upper clamping element, 9, lower clamping element, 10, explosion chamber drum, 11, V-groove, 12, device folder
Tight insulation blanket stud, the 13, first mounting groove, the 14, second mounting groove, the 15, the 3rd mounting groove, the 16, the 4th mounting groove, 17, upper clamping
The through hole of part, 18, the screwed hole of lower clamping element；
Fig. 2 is that main contact structure is illustrated before the explosive type dc circuit breaker provided by the invention based on pulse-electromagnetic force disconnects
Figure；
Fig. 3 is that main contact structure is illustrated after the explosive type dc circuit breaker provided by the invention based on pulse-electromagnetic force disconnects
Figure.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As described in Figure 1, the explosive type dc circuit breaker provided by the invention based on pulse-electromagnetic force, including pulse magnet 1,
Pulse magnet positive terminal 2 and pulse magnet negative terminal 3, pulse magnet positive terminal 2 and pulse magnet negative pole terminal 3 with
Pulse magnet 1 is connected, and arteries and veins is passed through into pulse magnet 1 by connecting pulse magnet positive terminal 2 and pulse magnet negative terminal 3
Electric current is rushed, pulse magnet 1 is produced pulsed magnetic field, in addition to main contact 4, main contact positive terminal 5 and main contact negative terminal
6, main contact 4 is cylindrical in shape, and is placed on outside pulse magnet 1, and the outer wall of pulse magnet 1 keeps about 5mm space with the inwall of main contact 4
Distance, and multiple V-grooves 11 are provided with main contact 4, main contact 4 is divided into multiple annular sections of connection by multiple V-grooves 11,
V-groove 11 is main contact semi-finals degree most weakness, and main contact upper end is connected with main contact positive terminal 5, and main contact lower end is touched with main
Head negative terminal 6 connects, and explosive type dc circuit breaker provided by the invention bears wiring by main contact positive terminal 5 and main contact
Post 6 is connected in main circuit.
Also include multiple main contact support rings 7, be placed on outside main contact 4, in addition to the annular section positioned at main contact both ends, often
Individual annular section is cased with main contact support ring 7, and the material of main contact support ring 7 is epoxy insulation material, when to pulse magnet just
After adding pulse current in binding post 2 and pulse magnet negative terminal 3, make to produce pulsed magnetic field, pulsed magnetic field in pulse magnet 1
So that the surface induction of main contact 4 goes out vortex, the inductive loop and pulsed magnetic field action on the surface of main contact 4, in each of main contact 4
Radially outer pulse-electromagnetic force is produced on cross section, the pulse-electromagnetic force is larger, and main contact 4 is in lasting pulse electromagnetic masterpiece
Expanded with outside, under the support of main contact support ring 7, when the electromagnetic force exceedes 4 tensile yield strength of main contact, main contact 4
It is broken at V-groove 11, gap is turned-out around the contact point of main contact support ring and main contact, realizes the complete of main contacts 4
It is complete to disconnect, correspondingly also disconnect the electric current of main circuit.
Due to, by the way that pulse current is converted into pulse-electromagnetic force, being disconnected in the present invention using pulse-electromagnetic force as driving force
Explosive type dc circuit breaker, gas is converted into compared to by pulse current, explosive type dc circuit breaker is used as using gas expansion
The technical scheme of driving force, for the less demanding of pulse current, therefore, the control of power supply and power supply to providing pulse current
Means suitable processed significantly reduces.Meanwhile the present invention in explosive type dc circuit breaker pulse-electromagnetic force it is larger, main contact disconnect after
Gap distance is big so that explosive type dc circuit breaker provided by the invention can be applied to high-tension circuit, can turn off up to
120kA direct current long pulse electric current, shut-off voltage are higher.
Also include upper clamping element 8, lower clamping element 9 and explosion chamber drum 10, explosion chamber drum 10 is placed on main contact support ring 7
Outside, the first mounting groove 13 and the second mounting groove 14 are provided with upper clamping element 8, lower clamping element 9 is provided with the 3rd mounting groove 15 and the
Four mounting grooves 16, explosion chamber drum 10 are placed on outside main contact support ring, are cased with pulse magnet one end installation and first of main contact
In mounting groove 13, the pulse magnet other end for being cased with main contact is installed in the 3rd mounting groove 15, the one end of explosion chamber drum 10 peace
Loaded on the second mounting groove 14, the other end of explosion chamber drum 10 is installed on the 4th mounting groove 16, by upper clamping element 8, the and of lower clamping element 9
The explosion chamber of the composition sealing of explosion chamber drum 10, due to being used as by the way that pulse current is converted into pulse-electromagnetic force in the present invention
Driving force, realize that explosive type dc circuit breaker disconnects, it is therefore not high to the sealing requirements of explosion chamber, i.e., to upper clamping element, under
The required precision of clamping element and explosion chamber drum is not high, reduces the cost of the present invention.
Also include multiple clamping insulation blanket studs 12, multiple through holes 17 are evenly distributed with upper clamping element 8, in lower clamping element
Multiple screwed holes 18 are evenly distributed with 9, clamp insulation blanket stud by the spiral shell on the through hole and lower clamping element 9 on upper clamping element 8
Pit connects, the connection of clamping element 8 and lower clamping element 10 in realization, so as to which upper clamping element 8 and lower clamping element 9 are realized explosion chamber
Drum 10, pulse magnet 1 and main contact 4 are fixed.
The schematic diagram before main contact disconnects is illustrated in figure 2, main contact is cylindrical, and V-groove is provided with main contact
411 to V-groove 415, and main contact is divided into multiple annular sections 401 to annular section 406 by V-groove 411 to V-groove 415, and ring
Shape part 401 to annular section 406 is sequentially connected, and ensures the master that explosive type dc circuit breaker is connected before main contact does not disconnect
Circuit turn-on.
The schematic diagram after main contact disconnects is illustrated in figure 3, annular section 401 and annular section 402 are at V-groove 411
Disconnect, annular section 402 to the open position of annular section 406 is identical with the open position of annular section 401, annular section 402 to
The outside of annular section 405 is cased with main contact support ring, main to touch when main contact is expanded by radially outer pulse-electromagnetic force
Head annular support ring provides support force so that main contact quickly disconnects at V-groove 411 to V-groove 415, and main contact is every
Individual disconnection mouth is turned-out, increases gap distance；Annular section 401 is close to the first mounting groove 13, and annular section 406 is close to
Three mounting grooves 15, when main contact is expanded by radially outer pulse-electromagnetic force, the inner surface of the first mounting groove 13 is annular
Part 401 provides support force, and the inner surface of the 3rd mounting groove 15 provides support force to annular section 406 so that annular section 401
It is rapidly turned-out after being disconnected at V-groove 411, it is also rapidly turned-out after being disconnected at annular section 406 and V-groove 415,
Increase gap distance, realization rapidly and accurately disconnects main circuit.
Main contact material in the present invention is aluminium, and aluminium has good electric conductivity, while aluminium is easily broken, explosive type direct current
It when breaker receives action command, can faster disconnect, improve explosive type dc circuit breaker performance.
Because the pulse-electromagnetic force used in the present invention disconnects main contact as driving force, with using thunder in the prior art
Pipe is compared with the blast of explosive as driving force, and the raw material of dc circuit breaker are easier to obtain, and is adapted to large-scale production system
Make, compared with technology use aluminium wire compared with water generated reactive gas is as driving force, it is not high to explosion chamber sealing requirements,
Therefore, in the present invention explosive type dc circuit breaker based on pulse-electromagnetic force that provides it is not high to its building block required precision and
It is easy to mass produce, in addition, the service life of pulse magnet is higher, repeats and utilize, it is convenient to change, and is allowed using pulse current
Pulse magnet, which produces pulse electromagnetic field, can also reduce the volume of pulse magnet, can significantly reduce blast provided by the invention
The cost of type dc circuit breaker.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of explosive type dc circuit breaker based on pulse-electromagnetic force, it is characterised in that including pulse magnet (1), one
Individual main contact (4) and multiple main contact support rings (7), main contact (4) are placed on pulse magnet (1) outside, multiple main contact supports
Ring (7) is placed on main contact (4) outside；
Pulse magnet (1), pulsed magnetic field is provided for being disconnected for main contact；
Main contact (4), is cylindrical in shape, and multiple V-grooves (11) are provided with main contact (4) surface, and V-groove (11) divides main contact (4)
Into connected multiple annular sections；
Main contact support ring (7), in addition to the annular section at both ends is located in main contact (4), remaining each annular section is cased with
Main contact support ring (7), for supporting main contact (4) when main contact (4) is outwards expanded by pulse-electromagnetic force, make main contact
(4) disconnect and turned-out.
2. according to the explosive type dc circuit breaker described in claim 1, it is characterised in that also including upper clamping element (8), lower folder
Tight part (9) and explosion chamber drum (10), the first mounting groove (13) and the second mounting groove (14), lower clamping element are provided with upper clamping element
On be provided with the 3rd mounting groove (15) and the 4th mounting groove (16)；Explosion chamber drum (10) is placed on main contact support ring (7) outside, described
Pulse magnet (1) one end for being cased with main contact (4) is installed in the first mounting groove (13), and the other end is installed on the 3rd mounting groove
(15) in, explosion chamber drum one end is installed in the second mounting groove (14), and the other end is installed in the 4th mounting groove (16).
3. according to the explosive type dc circuit breaker described in claim 2, it is characterised in that also including pulse magnet positive terminal
And pulse magnet negative terminal (3), described pulse magnet positive terminal (2) and pulse magnet negative terminal (3) and pulse (2)
Magnet (1) is connected, the power supply inlet port as pulse magnet (1).
4. according to the explosive type dc circuit breaker described in claim 3, it is characterised in that also including main contact positive terminal
(5) it is connected with main contact negative terminal (6), described main contact positive terminal (5) with main contact one end, the main contact is negative to be connect
Terminal (6) is connected with main contact (4) other end, the access interface as main circuit.
5. according to the explosive type dc circuit breaker described in claim 4, it is characterised in that also including multiple clamping insulated bolts
(12) multiple through holes (17), are evenly distributed with the upper clamping element, multiple screwed holes are evenly distributed with the lower clamping element
(18), the insulated bolt (12) that clamps connects by the through hole (17) of the upper clamping element and the screwed hole (18) of lower clamping element
Connect.
6. explosive type dc circuit breaker as claimed in any of claims 1 to 5, it is characterised in that the material of main contact
Expect for aluminium.
7. explosive type dc circuit breaker as claimed in any of claims 1 to 5, it is characterised in that the main contact
Support ring is epoxy insulation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866708.4A CN106298363B (en) | 2016-09-30 | 2016-09-30 | A kind of explosive type dc circuit breaker based on pulse-electromagnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610866708.4A CN106298363B (en) | 2016-09-30 | 2016-09-30 | A kind of explosive type dc circuit breaker based on pulse-electromagnetic force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106298363A CN106298363A (en) | 2017-01-04 |
| CN106298363B true CN106298363B (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610866708.4A Active CN106298363B (en) | 2016-09-30 | 2016-09-30 | A kind of explosive type dc circuit breaker based on pulse-electromagnetic force |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378251B (en) * | 2018-09-17 | 2020-04-24 | 中国科学院合肥物质科学研究院 | Explosion switch for full-superconducting Tokamak nuclear fusion experiment magnet power supply system |
| DE102019101236A1 (en) * | 2019-01-17 | 2020-07-23 | Liebherr-Components Biberach Gmbh | Control device for triggering at least one pyro fuse and energy storage device with such a pyro fuse |
| CN112275886B (en) * | 2020-09-30 | 2022-08-30 | 北京理工大学深圳汽车研究院 | Blanking device and method based on electro-hydraulic forming |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19900666A1 (en) * | 1999-01-11 | 2000-07-13 | Abb Research Ltd | Electric quick switch |
| CN1416149A (en) * | 2001-10-29 | 2003-05-07 | 陈厚和 | Exploding breaker of current carrying object |
| CN200990352Y (en) * | 2006-09-20 | 2007-12-12 | 孙静 | Inserting high-voltage large current fast cut-off device |
| EP2245645A1 (en) * | 2008-01-22 | 2010-11-03 | Siemens Aktiengesellschaft | Short-circuit device having pyrotechnic trigger |
| CN102005337B (en) * | 2010-11-17 | 2013-03-20 | 武汉长海电气科技开发有限公司 | Explosive circuit breaker |
| CN105977088A (en) * | 2016-03-08 | 2016-09-28 | 中国科学院等离子体物理研究所 | Explosive high voltage circuit breaker used for breaking high current |
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- 2016-09-30 CN CN201610866708.4A patent/CN106298363B/en active Active
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| CN106298363A (en) | 2017-01-04 |
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