CN209675160U - A kind of magnetic-quenching arc-extinguishing device - Google Patents
A kind of magnetic-quenching arc-extinguishing device Download PDFInfo
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- CN209675160U CN209675160U CN201920494043.8U CN201920494043U CN209675160U CN 209675160 U CN209675160 U CN 209675160U CN 201920494043 U CN201920494043 U CN 201920494043U CN 209675160 U CN209675160 U CN 209675160U
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- arc
- magnetic
- permanent magnet
- side wall
- mounting rack
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Abstract
The utility model discloses a kind of magnetic-quenching arc-extinguishing device, the permanent magnet (2) of annular is formed on the mounting rack (1) inner wall including mounting rack (1) and being installed on, adjacent two permanent magnet (2) is heteropolar opposite.Magnetic-quenching arc-extinguishing device provided by the utility model forms closed loop arc extinguishing structure by mounting rack and permanent magnet, by the heteropolar opposite of permanent magnet, make to form magnetic field of volution in arc-control device, realize magnetic quenching, strong attraction is provided, ensure that the arc extinguishing ability and anti-loading ability of contact.
Description
Technical field
The utility model relates to a kind of magnetic-quenching arc-extinguishing devices.
Background technique
Relay and with device for switching such as switch contacts in the movement of closure/disconnection, burn between the contact of device for switching
Electric arc is formed, in order to reduce electric arc to the space of the scaling loss of device for switching contact and limitation arc burning, generally to use has
The magnetic-quenching arc-extinguishing device of stronger arc extinguishing ability surrounds the contact of device for switching.Currently, common arc quenching principle have it is following several:
1) contact is separated by mechanical external force in an atmosphere, elongating arc.
2) magnetic field is generated in arcing region using the electric current for tiding over galvanic circle or special coil, drives electric arc moving in rotation
Or it elongates.
3) effect in magnetic field is relied on, electric arc is promoted and is cooled down in slit made of arc resistant material and deionization.
4) with insulation grid or metal grid come arc extinguishing.
5) closing arc-chutes are done using solid production material, on the one hand improves arc suppression chamber pressure, while also can use
Gas carries out arc blow-out.
6) electric arc development is limited using solid particles such as quartz sands and reinforces cooling.
7) electric arc self-energy is utilized, oil gas or obstruction arc road is decomposed, generates high pressure gas and carry out arc blow-out.
8) high pressure gas arc blow-out is utilized, mainly there is air or SF6 gas.
9) arc extinguishing is carried out using vacuum interrupter.
Magnetic quenching is to reach a kind of method of arc extinguishing using active force of the magnetic field to electric current, and existing magnetic quenching is to utilize
The mode that magnetic blow-out iron core and blowout coil combine realizes arc extinguishing, and arc extinguishing ability is poor；It can not be improved when use resistance between contact
Pressure energy power.
Utility model content
In order to solve the problems, such as present in existing magnetic quenching, the utility model one kind in this that is designed to provide can
Offer attraction is strong, can guarantee the anti-loading ability of contactor and the magnetic-quenching arc-extinguishing device of insulation voltage endurance capability.
To realize the purpose of this utility model, provided magnetic-quenching arc-extinguishing device includes mounting rack and is installed on installation herein
The permanent magnet of annular is formed on frame inner wall, adjacent two permanent magnet is heteropolar opposite.
In order to further improve the attraction of arc-control device, guarantee the arc extinguishing ability and anti-loading ability of contact, this reality
It is differed with the coercive force that the Design of Permanent Magnet in the arc-control device of novel offer is two adjacent permanent magnets.Pass through coercive force
Not equal permanent-magnet steel, forms different magnetic circuit systems in closed space, forms different magnetic force in different zones, this is touching
Head be powered, the electric arc especially generated in high-voltage DC contactor contact galvanization, by strong magnetic force space by electricity
Magneticaction, and then arc extinguishing distance is formd, it ensure that the anti-insulation voltage endurance capability and load energy of high-voltage DC contactor contact
Power.
The beneficial effects of the utility model are: magnetic-quenching arc-extinguishing device provided by the utility model passes through mounting rack and permanent magnet
Closed loop arc extinguishing structure is formed, by the heteropolar opposite of permanent magnet, make to form magnetic field of volution in arc-control device, realizes magnetic quenching,
Strong attraction is provided, ensure that the arc extinguishing ability and anti-loading ability of contact.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of magnetic-quenching arc-extinguishing device provided by the utility model；
Fig. 2 is that one group of probe of contactor is placed in the structural schematic diagram in magnetic-quenching arc-extinguishing device provided by the utility model；
Fig. 3 is that two groups of probe of contactor are placed in the structural schematic diagram in magnetic-quenching arc-extinguishing device provided by the utility model；
In figure: 1- mounting rack, 2- permanent magnet, the contact 3-, 4- cavity.
Specific embodiment
Further details of theory is made to magnetic-quenching arc-extinguishing device provided by the utility model in conjunction with the accompanying drawings and embodiments herein
It is bright.
Due to contactor load it is larger relative to relay, typically larger than 50A in addition it is specified under reach 600A, when overload
It is up to 6000A, so probe of contactor band can generate powerful electric arc when carrying switching, which can cause probe of contactor
Damage, influences the stability of contactor, therefore the utility model provides a kind of magnetic-quenching arc-extinguishing device, the structure of the device such as Fig. 1
It is shown, include hollow mounting rack 1 and is installed on the permanent magnet 2 for forming annular on 1 inner wall of mounting rack, adjacent two permanent magnet 2
To be heteropolar opposite, permanent magnet 2 and mounting rack 1 form closed loop configuration, and centre forms the cavity 4 placed for probe of contactor 3；This
One group of contacts of contactor arc extinguishing had not only may be implemented in the magnetic-quenching arc-extinguishing device that utility model provides, but also multiconductor may be implemented and exist simultaneously
With arc extinguishing in cavity, arc extinguishing ability is maximized.
As shown in Figures 2 and 3, wherein Fig. 2 is that one group of probe of contactor is placed in magnetic quenching dress provided by the utility model
Structural schematic diagram in setting；When one group of probe of contactor 3 is sealed in the cavity 4 of arc-control device provided by the utility model,
Probe of contactor 3 switches electric loading, and electric arc is generated between contact, and electric arc is transported in the magnetic field generated from permanent magnet to two diagonal directions
It is dynamic, the arc extinguishing ability of contact is increased, while increasing contact anti-loading ability.
Fig. 3 is that two groups of probe of contactor are placed in the structural schematic diagram in magnetic-quenching arc-extinguishing device provided by the utility model, when
When two groups of probe of contactor 3 (A1-A1, B2-B2) are sealed in the cavity 4 of arc-control device provided by the utility model, contact is cut
Electric loading is changed, electric arc is generated between contact, two groups of contact electric arcs move in the magnetic field generated from permanent magnet to two diagonal directions, increase
Add the arc extinguishing ability of contact, while increasing contact anti-loading ability.
The quantity of permanent magnet 2 can be two, four or more, herein use four, can pacify in any way
On inner wall loaded on mounting rack 1, guarantee that adjacent two permanent magnet 2 is heteropolar opposite；Installation is installed on as opposite two-by-two respectively
On the inner wall of frame.
Another structure of magnetic-quenching arc-extinguishing device provided by the utility model is: the structure of mounting rack 1 is hollow ring peace
It shelves, specific structure is the hexahedron without top and bottom, specifically includes the first side wall 11, second sidewall 12, third side wall
13 and the 4th side wall 14, the first side wall 11, second sidewall 12, third side wall 13 and the 4th side wall 14 constitute annular；Wherein first
Side wall 11, second sidewall 12, the length and width of third side wall 13 and the 4th side wall 14 can be equal, can not also wait, and such as the
One side wall 11, second sidewall 12, the width of third side wall 13 and the 4th side wall 14 are equal, but the first side wall 11 and third side wall 13
Equal length, the equal length of second sidewall 12 and the 4th side wall 14, and the length of the first side wall 11 and third side wall 13 is big
In the length of second sidewall 12 and the 4th side wall 14.
In this structure, the number of permanent magnet 2 is 4, opposite two-by-two respectively to be installed on the first side wall 11 and third side wall 13；
Or it is installed in second sidewall 12 and the 4th side wall 14 relatively two-by-two respectively；But it still needs to guarantee that adjacent two permanent magnet 2 is heteropolar phase
It is right.
Mounting rack 1 provided by the utility model can be metal mounting rack, or ceramic mounting rack.Mounting rack 1 removes
Can using the utility model herein documented by without the hexahedral ring structure of top and bottom outside, can also use
Cylindrical body ring structure or other hollow ring structures without top and bottom.
Documented permanent magnet 2 can be any permanent magnet herein, use permanent-magnet steel herein, adjacent two permanent magnet
Coercive force can be equal, but in order to have preferably arc extinguishing ability, the coercive force of preferably adjacent two permanent magnet to differ, i.e.,
Adjacent permanent magnet is two kinds of permanent magnets.By two kinds of permanent-magnet steels, different magnetic circuit systems is formed in closed space, not
Different magnetic force is formed with region, this is contact energization, the electricity especially generated in high-voltage DC contactor contact galvanization
Arc, by electromagnetic force, and then will form arc extinguishing distance in strong magnetic force space, better assure that high voltage direct current connects
The anti-insulation voltage endurance capability and load capacity of tentaculum contact.
Above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The modification or equivalent replacement that the technical solution of the utility model is made, without departing from the spirit of the technical solution of the utility model
And range, it is encompassed by the scope of the claims of the utility model.
Claims (9)
1. a kind of magnetic-quenching arc-extinguishing device, it is characterised in that: including mounting rack (1) and be installed on shape on the mounting rack (1) inner wall
The permanent magnet (2) circularized, adjacent two permanent magnet (2) are heteropolar opposite.
2. magnetic-quenching arc-extinguishing device according to claim 1, it is characterised in that: the mounting rack (1) includes the first side wall
(11), second sidewall (12), third side wall (13) and the 4th side wall (14), the first side wall (11), the second sidewall
(12), the third side wall (13) and the 4th side wall (14) constitute annular.
3. magnetic-quenching arc-extinguishing device according to claim 2, it is characterised in that: the first side wall (11) and the third side
The length of wall (13) is greater than the length of the second sidewall (12) and the 4th side wall (14).
4. magnetic-quenching arc-extinguishing device according to claim 3, it is characterised in that: the number of the permanent magnet (2) is 4, respectively
It is opposite two-by-two to be installed on the first side wall (11) and the third side wall (13).
5. magnetic-quenching arc-extinguishing device according to claim 1 or 2 or 3 or 4, it is characterised in that: the mounting rack (1) is metal
Mounting rack.
6. magnetic-quenching arc-extinguishing device according to claim 1 or 2 or 3 or 4, it is characterised in that: the mounting rack (1) is ceramics
Mounting rack.
7. magnetic-quenching arc-extinguishing device according to claim 1 or 2 or 3 or 4, it is characterised in that: the permanent magnet (2) is permanent magnetism
Steel.
8. magnetic-quenching arc-extinguishing device according to claim 1, it is characterised in that: the number of the permanent magnet (2) is 4, respectively
It is opposite two-by-two to be installed on the inner wall of the mounting rack (1).
9. magnetic-quenching arc-extinguishing device according to claim 1, it is characterised in that: the coercive force of two adjacent permanent magnets (2)
Differ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920494043.8U CN209675160U (en) | 2019-04-12 | 2019-04-12 | A kind of magnetic-quenching arc-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920494043.8U CN209675160U (en) | 2019-04-12 | 2019-04-12 | A kind of magnetic-quenching arc-extinguishing device |
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| Publication Number | Publication Date |
|---|---|
| CN209675160U true CN209675160U (en) | 2019-11-22 |
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ID=68574082
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920494043.8U Active CN209675160U (en) | 2019-04-12 | 2019-04-12 | A kind of magnetic-quenching arc-extinguishing device |
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| CN (1) | CN209675160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113380565A (en) * | 2021-05-31 | 2021-09-10 | 浙江英洛华新能源科技有限公司 | Relay with enhanced magnetic field |
| CN114946002A (en) * | 2020-02-19 | 2022-08-26 | 索克迈克股份有限公司 | Magnetic arc-extinguishing chamber for an electrical breaking device and electrical breaking device equipped with such a chamber |
-
2019
- 2019-04-12 CN CN201920494043.8U patent/CN209675160U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946002A (en) * | 2020-02-19 | 2022-08-26 | 索克迈克股份有限公司 | Magnetic arc-extinguishing chamber for an electrical breaking device and electrical breaking device equipped with such a chamber |
| CN114946002B (en) * | 2020-02-19 | 2023-04-18 | 索克迈克股份有限公司 | Magnetic arc-extinguishing chamber for an electrical breaking device and electrical breaking device equipped with such a chamber |
| CN113380565A (en) * | 2021-05-31 | 2021-09-10 | 浙江英洛华新能源科技有限公司 | Relay with enhanced magnetic field |
| CN113380565B (en) * | 2021-05-31 | 2024-04-12 | 浙江英洛华新能源科技有限公司 | Relay with enhanced magnetic field |
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