CN203312185U - Electromagnetic type alternating current contactor - Google Patents
Electromagnetic type alternating current contactor Download PDFInfo
- Publication number
- CN203312185U CN203312185U CN2013204006898U CN201320400689U CN203312185U CN 203312185 U CN203312185 U CN 203312185U CN 2013204006898 U CN2013204006898 U CN 2013204006898U CN 201320400689 U CN201320400689 U CN 201320400689U CN 203312185 U CN203312185 U CN 203312185U
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- housing
- contacts
- coil
- armature
- electromagnetic
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Abstract
The utility model belongs to the field of electric switch devices, and particularly relates to an electromagnetic type alternating current contactor. The electromagnetic type alternating current contactor comprises an electromagnetic system, a housing, a moving rack, an iron core, an armature, an arc chute and a reaction spring; the electromagnetic system comprises an electromagnet and a coil; the coil is arranged under the housing; the electromagnet is arranged in the coil; the iron core is fixed in the middle of the bottom of the housing; the armature is arranged above the iron core arranged in the middle of the electromagnet; the moving rack is arranged on the upper part of the armature; three bridge-shaped contacts are arranged on the moving rack; three static contacts are arranged on the housing; the electromagnetic system is in the shape of an armored solenoid; the arc chute is arranged above the static contacts; and the reaction spring is fixed between the moving rack and the housing and is placed left-right symmetrically. Compared with a present silicon steel sheet structure and a present epsilon-shaped iron structure, the electromagnetic type alternating current contactor in the shape of the armored solenoid moves more stably and produces lower noise; and the arc chute achieves an arc leading function, so electric arcs of contacts can be broken and electric arc heat can be timely guided out, breaking ability is improved, a phenomenon of short circuit is avoided, and performance is more safe and reliable.
Description
Technical field
The utility model belongs to the electric switchgear field, relates in particular to a kind of A.C. contactor.
Background technology
On electrotechnics; contactor is a kind of automation switch that is used for being switched on or switched off load-carrying alternating current-direct current main circuit or large volume controlled circuit; major control is to liking motor; in addition also for other electrical loads; as electric heater, electric welding machine, lighting apparatus; circuit can not only be connected and cut off to contactor, but also have the effect of low-voltage release guard.It is large that contactor is controlled capacity, is applicable to frequent operation and far distance controlled, is one of critical elements in automatic control system.Electromagnetic AC contactor is when electromagnetic contactor coil no power, and the deadweight of the reaction force of spring and armature core makes main contacts remain open position.When solenoid is connected control voltage (being generally rated voltage) by control loop, electromagnetic force overcomes the reaction force of spring armature is inhaled to fixed core, drive main contacts closure, connect circuit, now on market popular electromagnetic AC contactor exist noise high, move jiggly shortcoming.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of electromagnetic AC contactor, comprises electromagnetic system, housing, moving frame, iron core, armature, and described electromagnetic system comprises electromagnet and coil; Described coil is located at described housing below; Described electromagnet is located in described coil; Described iron core is fixed in the middle of the bottom of described housing; Described armature is arranged on the centre of described electromagnet, the top of described iron core; Described moving frame is arranged on described armature top, characterized by further comprising arc-chute, reaction spring, on described moving frame, is provided with 3 bridge-shaped contacts; On described housing, be provided with 3 fixed contacts; Described 3 bridge-shaped contacts form 3 pairs of normally open contacts with 3 fixed contacts respectively; Described bridge-shaped contact and fixed contact are provided with contact; Described electromagnetic system is armoring helix tube type; Described arc-chute is arranged at described housing top and is positioned at the top of described 3 fixed contacts; Described reaction spring is fixed between described moving frame and described housing and left-right symmetric is placed; Described reaction spring is turriform.
Sliver oxidized tin contactor materials is adopted in described contact.
The beneficial effects of the utility model are: in the utility model, electromagnetic system adopts armoring helix tube type, compares with existing silicon steel sheet, mountain word iron construction, and electromagnetic AC contactor action of the present utility model is more steady, and noise is lower; Arc-chute plays the striking effect, but not only break contact electric arc but also the electric arc heat can be derived in time improves breaking capacity, has avoided the generation of short circuit phenomenon, and performance is more safe and reliable; Moving frame and housing are provided with the turriform reaction spring, make the A.C. contactor action more steady.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further explained to explanation.
In figure, 1, electromagnetic system, 2, electromagnet, 3, coil, 4, housing, 5, iron core, 6, armature, 7, moving frame, 8, bridge-shaped contact, 9, fixed contact 10, normally open contact, 11, contact, 12, arc-chute, 13, reaction spring.
As shown in Figure 1, comprise electromagnetic system 1, housing 4, moving frame 7, unshakable in one's determination 5, , armature 6, electromagnetic system 1 comprises electromagnet 2 and coil 3, coil 3 is fixed in described housing 4 belows, electromagnet 2 is located in coil 3, unshakable in one's determination 5 are located in the middle of the bottom of housing 4, armature 6 is arranged on the centre of electromagnet 2, be positioned at unshakable in one's determination 5 top, moving frame 7 is arranged on armature 6 tops, on moving frame 7, be provided with 3 bridge-shaped contacts 8, on housing 4, be provided with 3 fixed contacts 9, 3 bridge-shaped contacts 8 form 3 pairs of normally open contacts 10 with 3 fixed contacts 9 respectively, bridge-shaped contact 8 is provided with sliver oxidized tin contactor materials contact 11 with fixed contact 9, electromagnetic system 1 is armoring helix tube type, arc-chute 12 is arranged at described housing 4 tops and is positioned at the top of described 3 fixed contacts 9, reaction spring 13 is fixed between described moving frame 7 and described housing 4 and left-right symmetric is placed, reaction spring 13 is turriform.
Coil 3 is under "on" position, and coil 3 produces magnetic, and under the effect of coil 3 magnetic force, the armature 6 in the middle of contactor is taken the lead moving frame 7 and moved down, and bridge-shaped contact 8 contacts with fixed contact 9, and reaction spring 13 is in compressive state.When electromagnetic system was in off-position, the magnetic force that coil 3 produces disappeared, and under the elastic force effect of the reaction spring 13 compressed, moving frame 7 moves up, and bridge-shaped contact 8 contacts disconnection with fixed contact 9.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., within all should belonging to patent covering scope of the present utility model.
Claims (2)
1. an electromagnetic AC contactor, comprise electromagnetic system (1), housing (4), moving frame (7), (5), armature (6) unshakable in one's determination, and described electromagnetic system (1) comprises electromagnet (2) and coil (3); Described coil (3) is located at described housing (4) below; Described electromagnet (2) is located in described coil (3); Described iron core (5) is fixed in the middle of the bottom of described housing (4); Described armature (6) is arranged on the centre of described electromagnet (2); The top of described iron core (5), described moving frame (7) are arranged on described armature (6) top, characterized by further comprising arc-chute (12), reaction spring (13), on described moving frame (7), are provided with 3 bridge-shaped contacts (8); On described housing (4), be provided with 3 fixed contacts (9); Described 3 bridge-shaped contacts (8) form 3 pairs of normally open contacts (10) with 3 fixed contacts (9) respectively; Described bridge-shaped contact (8) is provided with contact (11) with fixed contact (9); Described electromagnetic system (1) is armoring helix tube type; Described arc-chute (12) is arranged at described housing (4) top and is positioned at the top of described 3 fixed contacts (9); Described reaction spring (13) is fixed between described moving frame (7) and described housing (4) and left-right symmetric is placed; Described reaction spring (13) is turriform.
2. a kind of electromagnetic AC contactor according to claim 1, is characterized in that described contact (11) employing sliver oxidized tin contactor materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204006898U CN203312185U (en) | 2013-07-08 | 2013-07-08 | Electromagnetic type alternating current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204006898U CN203312185U (en) | 2013-07-08 | 2013-07-08 | Electromagnetic type alternating current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203312185U true CN203312185U (en) | 2013-11-27 |
Family
ID=49618372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204006898U Expired - Lifetime CN203312185U (en) | 2013-07-08 | 2013-07-08 | Electromagnetic type alternating current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203312185U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916474A (en) * | 2015-05-08 | 2015-09-16 | 上海电机学院 | Permanent-magnet contactor arc extinguishing device |
-
2013
- 2013-07-08 CN CN2013204006898U patent/CN203312185U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916474A (en) * | 2015-05-08 | 2015-09-16 | 上海电机学院 | Permanent-magnet contactor arc extinguishing device |
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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: 20131127 |