CN203134623U - Permanent-magnetic arc extinguishing apparatus for contactor main contact - Google Patents
Permanent-magnetic arc extinguishing apparatus for contactor main contact Download PDFInfo
- Publication number
- CN203134623U CN203134623U CN 201320070411 CN201320070411U CN203134623U CN 203134623 U CN203134623 U CN 203134623U CN 201320070411 CN201320070411 CN 201320070411 CN 201320070411 U CN201320070411 U CN 201320070411U CN 203134623 U CN203134623 U CN 203134623U
- Authority
- CN
- China
- Prior art keywords
- permanent
- arc extinguishing
- arc
- permanent magnet
- contactor
- Prior art date
- 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
Links
Images
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model provides a permanent-magnetic arc extinguishing apparatus for a contactor main contact. Permanent magnets of opposite polarities are respectively arranged on two sides of a moving contact set and a static contact set of a contactor. When a moving contact is separated from a static contact, generated arc is rapidly elongated and extinguished under effects of a permanent magnetic field generated by the permanent magnets and electric motive force generated by flowing through the contacts of current, so that arc extinguishing is very rapid. Compared with conventional blow-out coil-type arc extinguishing apparatuses, a heating phenomenon cannot appear, a copper material is saved, the permanent-magnetic arc extinguishing apparatus is without an insulation problem, a size is small, weight is light, installation is convenient, an arc extinguishing structure can be simplified and manufacturing cost is greatly reduced because of a permanent-magnetic arc extinguishing manner.
Description
Technical field
The utility model relates to a kind of arc-control device, relates in particular to a kind of main noddle on contactor permanent-magnet arc extinguishing device.
Background technology
Contactor arc quenching method at present commonly used has a variety of, wherein a kind of is the blowout coil arc-control device, it is to utilize blowout coil, iron core, magnetic clamping plate to make the arc blow-out space, dynamic/static contact is placed in one, and the electric power of utilizing blowout coil to produce is extinguished the arc transfer that produces between the dynamic/static contact.
The method advantage is to can be used in the major loop of AC/DC contactor, and its shortcoming is to be not suitable for cut-offfing little electric current, and reason is that the electric power that this moment, blowout coil produced is too small.In addition, blowout coil only gets at major loop and just produces magnetic field when electric and cause electric power, thereby contact disjunction arc light can stop the regular hour at dynamic/static contact, can increase the ablation of dynamic/static contact.
Summary of the invention
The main noddle on contactor permanent-magnet arc extinguishing device that problem to be solved in the utility model provides a kind of arc extinguishing rapidly and can not cause contact to ablate, it is specially adapted to the arc extinguishing of low capacity contactor.
Technical solution of the present utility model is as follows:
The main noddle on contactor permanent-magnet arc extinguishing device that provides, its special character is: the both sides in contactor moving contact group and fixed contact group are respectively equipped with opposite polarity permanent magnet.
Above-mentioned permanent magnet is installed on the side plate of contactor fixed contact pedestal both sides.
Above-mentioned permanent magnet is installed in the dovetail groove of two side plates of contactor fixed contact pedestal.
Be provided with anti-wrong plug projection in the dovetail groove of a side plate of above-mentioned fixed contact pedestal, permanent magnet is provided with the groove that adapts with anti-wrong plug projection.
End face under the dovetail groove of a side plate of above-mentioned fixed contact pedestal is anti-wrong plug inclined-plane, and the permanent magnet lower surface is and the inclined-plane of preventing that the wrong plug inclined-plane adapts.
The utility model can also comprise the top cover that is installed on the fixed contact pedestal, and the permanent magnet upper end contacts with top cover.
The utility model installs permanent magnet additional in the dynamic/static contact both sides of contactor, when dynamic/static contact separates, the electric arc that produces flows through promptly to be elongated under the electrodynamic effect that electric current produces at permanent-magnetic field that permanent magnet produces and contact and extinguishes, so its arc extinguishing is very fast.Compare with existing blow-out coil formula arc-control device, owing to adopted the permanent magnetism arc quenching method, the phenomenon of not generating heat, economize and the naked problem with copper; Volume is little, in light weight, easy for installation, and can simplify arc extinguishing structure, thereby reduces manufacturing cost greatly.In addition, because the magnetic field intensity that permanent magnet produces is not subjected to contact to flow through the influence of electric current, so even contact flows through little electric current when producing electric arc, can be elongated by the electric power in the magnetic field like a cork and extinguish yet.
Description of drawings
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the structural representation of the utility model first embodiment;
Fig. 3 is the structural representation of the utility model second embodiment;
Fig. 4 is the vertical view of first and second embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present utility model is described in detail.
As shown in Figure 1, at the moving contact 1 of contactor and the both sides of fixed contact 2 permanent magnet 3 has been installed respectively, show among the figure be about two groups of dynamic/static contacts, the polarity of two permanent magnets of every group of contact both sides is opposite, thereby produce a constant permanent magnetic field (circle of band fork is represented magnetic direction among the figure, and it is perpendicular to paper).When moving contact 1 and fixed contact 2 disjunctions, the electric arc 4 of generation can be strengthened movement velocity by externally-applied magnetic field rapidly, makes the very fast stretching of electric arc 4, blows out.
As shown in Figure 2, in this example, for the needs with fixed permanent magnet are installed, have dovetail groove 51 at two side plates 5 of contactor fixed contact pedestal, permanent magnet just is inserted in the dovetail groove 51.
In order to prevent that two kinds of different arc blow-out permanent magnets 3 of magnetizing direction from loading in mixture, be that the permanent magnet polarity dress is anti-, in the dovetail groove of a side plate 5 of fixed contact pedestal, be provided with anti-wrong plug structure (the anti-wrong plug structure of another side plate certainly), the anti-wrong plug structure of this example is that the dovetail groove bottom part in fixed contact base side boards 5 is provided with boss 52, be provided with groove 31 with the bottom part of dovetail groove boss 52 corresponding permanent magnets 3, when permanent magnet was pressed the dovetail groove 51 of correct polarity insertion side plate 5, the boss 52 of dovetail groove bottom just in time was positioned at the groove of permanent magnet 3 bottoms; Adorn if permanent magnet is counter, then permanent magnet can be stoped by the boss 52 of dovetail groove bottom and can not insert dovetail groove.
Fig. 3 has provided second embodiment of the present utility model.Wherein anti-wrong plug structure is that dovetail groove bottom face 53 with fixed contact base side boards 5 is designed to the inclined-plane, certainly, the bottom face 32 of permanent magnet 3 should be the inclined-plane that adapts with dovetail groove bottom face 53, and the bottom surface that is contained in another permanent magnet on opposite is flat, and other structure of this example is identical with first embodiment with the exception of this.
As shown in Figure 4, be provided with top cover 6 in contactor fixed contact pedestal 7 upper ends, should compress permanent magnet after top cover covers, prevent that permanent magnet from deviating from from pedestal.
Claims (6)
1. main noddle on contactor permanent-magnet arc extinguishing device, it is characterized in that: the both sides in contactor moving contact group and fixed contact group are respectively equipped with opposite polarity permanent magnet.
2. arc-control device according to claim 1, it is characterized in that: described permanent magnet is installed on the side plate of contactor fixed contact pedestal both sides.
3. arc-control device according to claim 2, it is characterized in that: described permanent magnet is installed in the dovetail groove of two side plates of contactor fixed contact pedestal.
4. arc-control device according to claim 3 is characterized in that: be provided with anti-wrong plug projection in the dovetail groove of a side plate of fixed contact pedestal, permanent magnet is provided with the groove that adapts with anti-wrong plug projection.
5. arc-control device according to claim 3 is characterized in that: the end face under the dovetail groove of a side plate of fixed contact pedestal is anti-wrong plug inclined-plane, and the permanent magnet lower surface is and the inclined-plane of preventing that the wrong plug inclined-plane adapts.
6. according to each described arc-control device of claim 1 to 5, it is characterized in that: also comprise the top cover that is installed on the fixed contact pedestal, the permanent magnet upper end contacts with top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070411 CN203134623U (en) | 2013-02-06 | 2013-02-06 | Permanent-magnetic arc extinguishing apparatus for contactor main contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070411 CN203134623U (en) | 2013-02-06 | 2013-02-06 | Permanent-magnetic arc extinguishing apparatus for contactor main contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203134623U true CN203134623U (en) | 2013-08-14 |
Family
ID=48942574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320070411 Expired - Lifetime CN203134623U (en) | 2013-02-06 | 2013-02-06 | Permanent-magnetic arc extinguishing apparatus for contactor main contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203134623U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109119291A (en) * | 2018-09-10 | 2019-01-01 | 上海良信电器股份有限公司 | A kind of D.C. contactor arc extinguishing structure |
| CN109427506A (en) * | 2017-08-25 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooking saucepan |
| CN110945615A (en) * | 2017-07-26 | 2020-03-31 | 三菱电机株式会社 | Opening and closing device |
-
2013
- 2013-02-06 CN CN 201320070411 patent/CN203134623U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110945615A (en) * | 2017-07-26 | 2020-03-31 | 三菱电机株式会社 | Opening and closing device |
| CN110945615B (en) * | 2017-07-26 | 2021-11-05 | 三菱电机株式会社 | Opening and closing device |
| CN109427506A (en) * | 2017-08-25 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooking saucepan |
| CN109427506B (en) * | 2017-08-25 | 2020-11-20 | 佛山市顺德区美的电热电器制造有限公司 | Pressure switch and electric pressure cooker |
| CN109119291A (en) * | 2018-09-10 | 2019-01-01 | 上海良信电器股份有限公司 | A kind of D.C. contactor arc extinguishing structure |
| CN109119291B (en) * | 2018-09-10 | 2024-02-20 | 上海良信电器股份有限公司 | Arc extinguishing structure of direct current contactor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203325803U (en) | Frame part of relay | |
| CN203134623U (en) | Permanent-magnetic arc extinguishing apparatus for contactor main contact | |
| CN104124118A (en) | Magnetic blow-out device of direct current breaker | |
| CN206225305U (en) | A kind of intelligent AC Power Supply breaking system | |
| CN202221739U (en) | High-power relay | |
| CN102592887B (en) | Multipole direct-current contactor | |
| CN203434094U (en) | Miniature electromagnetic relay with high sensitivity | |
| CN202513095U (en) | Energy saving ac contactor | |
| CN203312085U (en) | Arc extinguishing device of high-voltage direct-current relay | |
| CN104538250A (en) | Novel magnetic switch | |
| CN104167951B (en) | A kind of electrostatic induction electricity generator | |
| CN102683093A (en) | Kilovolt-level double-pole double-breakpoint air type isolation change-over switch for mines | |
| CN207731871U (en) | High-voltage DC contactor | |
| CN202172053U (en) | Circuit breaker magnet yoke apparatus for arc ignition | |
| CN201918324U (en) | Dipolar direct-current contactor | |
| CN204011028U (en) | A kind of servicing unit that causes current transformer open circuit while avoiding secondary circuit to disconnect | |
| CN201936816U (en) | Multipolar direct-current contactor | |
| CN205092171U (en) | Middling pressure direct current contactor permanent magnetism arc control device | |
| CN209912792U (en) | Vacuum circuit breaker clamping mechanism for plateau type environment-friendly gas insulated switchgear | |
| CN209929236U (en) | Non-polar high-voltage direct-current contactor | |
| CN203118874U (en) | Electromagnet device of contactor | |
| CN203573860U (en) | Permanent-magnet arc extinguishing structure with transverse magnetic field | |
| CN104466688A (en) | Special vertical cooling device for large power distribution chamber | |
| CN203415492U (en) | Magnetron anti-leakage switch | |
| CN206595197U (en) | Arc extinguishing electromagnetic contactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130814 |