CN105551893A - Electromagnetic mechanism of direct current contactor - Google Patents
Electromagnetic mechanism of direct current contactor Download PDFInfo
- Publication number
- CN105551893A CN105551893A CN201610065240.9A CN201610065240A CN105551893A CN 105551893 A CN105551893 A CN 105551893A CN 201610065240 A CN201610065240 A CN 201610065240A CN 105551893 A CN105551893 A CN 105551893A
- Authority
- CN
- China
- Prior art keywords
- coil
- contact
- iron core
- contact spring
- static contact
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
Abstract
The invention discloses an electromagnetic mechanism of a direct current contactor. The electromagnetic mechanism comprises a coil bracket, a coil and an iron core, wherein the coil bracket comprises a central sleeve, and an upper baffle and a lower baffle arranged at the upper and lower ends of the central sleeve; the coil is arranged outside the central sleeve in a sleeving manner; the iron core is axially and movably arranged in the central sleeve; the coil comprises a first coil and a second coil that are consistent in the directions of provided field strength; the coil bracket is further equipped with a static contact and a moving contact; one end of the static contact is a power access end; the first coil is conductively connected to the static contact; the second coil is electrically connected to the moving contact; the moving end of the moving contact is connected with the static contact in a conductive contact manner when the direct current contactor is started; the moving contact is matched with the iron core in a linking manner; and the iron core drives the moving end of the moving contact to be disconnected from the static contact after the direct current contactor is started. The electromagnetic mechanism has the advantages of long-term stable operation, low energy consumption, low heat value and the like.
Description
Technical field
The present invention relates to a kind of D.C. contactor, specifically refer to the electromagnetic mechanism of D.C. contactor.
Background technology
D.C. contactor is mainly used in remote connection and disjunction DC circuit and starting continually, stopping, reversing and plug braking DC motor, also for switching on and off the solenoid etc. of lifting electromagnet, electromagnetically operated valve, clutch continually.
Existing D.C. contactor is primarily of electromagnetic mechanism, contact system and arc-control device three parts composition, and wherein electromagnetic mechanism is made up of iron core, coil, coil brace etc.In prior art, coil is all single coil design, in order to meet the D.C. contactor larger electromagnetic force required when starting, needs larger starting current or more coil turn.And on the other hand, for keeping the electromagnetic force of its open/close states much smaller than electromagnetic force when starting after D.C. contactor starts, thus, in this stage, without the need to start time identical operating current or too much coil turn, cause electric power or coil method waste.Therefore, be necessary to improve this.
Summary of the invention
The object of the invention is the shortcoming and defect existed to overcome prior art, and providing a kind of reasonable in design, and mate the electromagnetic mechanism of D.C. contactor that D.C. contactor starts and keep electromagnetic force needs under two kinds of operating states.
For achieving the above object, technical scheme of the present invention includes coil brace, coil and iron core, coil brace includes center sleeve and is arranged at overhead gage and the lower baffle plate at the upper and lower two ends of center sleeve, described coil is sheathed on outside center sleeve, described iron mandrel is to being movably set in center sleeve, described coil includes the first coil and the second coil that provide field intensity direction consistent, described coil brace is also respectively arranged with static contact and movable contact spring, one end of described static contact is electric power incoming end, first coil conduction is connected to static contact, the second described coil connects and is electrically connected on movable contact spring, the movable end of this movable contact spring is connected with static contact conductive contact when the startup of D.C. contactor, described movable contact spring and iron core are linked, and this iron core drives the movable end of movable contact spring and static contact to disconnect after D.C. contactor starts.Described movable contact spring is elasticity movable contact spring.
By this setting, coil is divided into two sections of independently the first coil and second coils, when starting, elasticity movable contact spring and static contact conducting, first coil and the second coil are energized work simultaneously, larger electromagnetic force is provided instantaneously in startup to iron core, thus meet the requirement that D.C. contactor starts electromagnetic force, and after D.C. contactor starts, iron core action, thus band dynamic elasticity movable contact spring moves down or, or remove the lowermost limit of elasticity movable contact spring, elasticity movable contact spring is separated with static contact under its elastic reaction, now just cut off the second coil being obtained supply of electric power by elasticity movable contact spring, namely after D.C. contactor starts, only has the first coil electricity work, significantly can reduce energy consumption.
Further setting is the below that the movable end elasticity of described elasticity movable contact spring is movably set in static contact.
Further setting is that described static contact is provided with fixed contact, the movable end of described elasticity movable contact spring is provided with to conduct electricity the moving contact being connected and coordinating with fixed contact.
Advantage of the present invention is reasonable in design, and mates D.C. contactor startup and electromagnetic force needs under keeping two kinds of operating states, and energy-saving effect is remarkable.
Operation principle of the present invention is that described coil includes the first coil (actuating coil) and the second coil (hold-in winding) that provide field intensity direction consistent, on described coil brace, actuating coil cathode circuit is provided with static contact and can automatically reset movable contact spring, one end of described static contact is positive pole incoming end, after coil power supply, actuating coil and hold-in winding work simultaneously, high-intensity magnetic field is produced after actuating coil conduction, dynamic iron core is fast near static iron core, dynamic iron core drives startup circle positive pole movable contact spring up to move when moving toward static iron core, and compression contacts spring, cut off actuating coil cathode power supply simultaneously, magnetic field is kept because hold-in winding has worked and produced, and sound iron core is pulled together, thus be embodied as the function that probe of contactor provides action force.When coil circuit power-off, hold-in winding power-off is under reactive spring force, and sound iron core disconnects fast, actuating coil movable contact spring Rapid reset.
the present invention is provided with the first coil as actuating coil and the second coil as hold-in winding, and specifically can realize the larger setting of twin coil actuating coil power, the less setting of hold-in winding power, realizes energy-conserving and environment-protective.Can solve Traditional DC contactor thus cannot long-term work in 7x24 hour, and realizes the low advantage of caloric value low power consumption.
Below in conjunction with specification drawings and specific embodiments, the present invention is described further.
Accompanying drawing explanation
Fig. 1 specific embodiment of the invention structural perspective;
Fig. 2 specific embodiment of the invention vertical view;
Fig. 3 specific embodiment of the invention A-A cutaway view;
Fig. 4 principle of the invention schematic diagram.
Embodiment
Below by embodiment, the present invention is specifically described, is only used to further illustrate the present invention, can not limiting the scope of the present invention be interpreted as.
The specific embodiment of the present invention as Figure 1-4, include coil brace 1, coil 2 and iron core 3, coil brace 1 includes center sleeve 11 and is arranged at overhead gage 12 and the lower baffle plate 13 at center sleeve about 11 two ends, described coil 2 is sheathed on outside center sleeve 11, described iron core 3 is axially movably set in center sleeve 11, described coil 2 includes the first coil 21 and the second coil 22 providing field intensity direction consistent, described coil brace 1 is also respectively arranged with static contact 4 and elasticity movable contact spring 5, one end of described static contact 4 is electric power incoming end 41, first coil 21 conduction is connected to static contact 4, the operating current of D.C. contactor is linked into static contact 4 by electric power incoming end 41, then the first coil 21 obtains supply of electric power from static contact 4.
The second coil 22 described in the present embodiment connects and is electrically connected on elasticity movable contact spring 5, the movable end 51 of this elasticity movable contact spring 5 is connected with static contact 4 conductive contact when the startup of D.C. contactor, described elasticity movable contact spring 5 is linked with iron core 3, and the movable end of this iron core 3 band dynamic elasticity movable contact spring 5 after D.C. contactor starts and static contact disconnect.So, when D.C. contactor starts, the second coil obtains supply of electric power by elasticity movable contact spring 5 from static contact 4, and after starting, elasticity movable contact spring 5 departs from disconnection mutually from static contact 4, cuts off the supply of electric power to the second coil.As particularly, the elasticity movable contact spring 5 described in the present embodiment is linked with iron core 3, can adopt and be not limited to following several organization establishes:
(1) upper end that is elasticity movable contact spring is direct and iron core is directly fixedly connected, then directly utilize iron core band dynamic elasticity movable contact spring, make it disconnect mutually with static contact;
(2) trepanning is provided with by elasticity movable contact spring, be movably set in the lower end of iron core, and utilize the lower end of iron core to carry out apical grafting support to the lower end of elasticity movable contact spring, due to general in the contact mechanism of D.C. contactor all can with back-moving spring, under the initial condition started, this back-moving spring can make iron core moves, thus overcome its own resilient of elasticity movable contact spring, elasticity movable contact spring is crimped on static contact from bottom to top, make the two conducting, and after D.C. contactor starts, electromagnetic force makes iron core move down, remove the apical grafting to elasticity movable contact spring lower end, elasticity movable contact spring just can disconnect with static contact under himself elastic reaction, the present embodiment preferably adopts this technical scheme, specifically see Fig. 1-3.
In addition, the movable end elasticity of the elasticity movable contact spring 5 described in the present embodiment is movably set in the below of static contact 4, described static contact 4 is provided with fixed contact 41, the movable end 51 of described elasticity movable contact spring 5 is provided with and conducts electricity the moving contact 511 being connected and coordinating with fixed contact.
Claims (4)
1. the electromagnetic mechanism of a D.C. contactor, include coil brace, coil and iron core, coil brace includes center sleeve and is arranged at overhead gage and the lower baffle plate at the upper and lower two ends of center sleeve, described coil is sheathed on outside center sleeve, described iron mandrel is to being movably set in center sleeve, it is characterized in that: described coil includes the first coil and the second coil that provide field intensity direction consistent, described coil brace is also respectively arranged with static contact and movable contact spring, one end of described static contact is electric power incoming end, first coil conduction is connected to static contact, the second described coil connects and is electrically connected on movable contact spring, the movable end of this movable contact spring is connected with static contact conductive contact when the startup of D.C. contactor, described movable contact spring and iron core are linked, and this iron core drives the movable end of movable contact spring and static contact to disconnect after D.C. contactor starts.
2. the electromagnetic mechanism of a kind of D.C. contactor according to claim 1, is characterized in that: described movable contact spring is elasticity movable contact spring.
3. the electromagnetic mechanism of a kind of D.C. contactor according to claim 2, is characterized in that: the movable end elasticity of described elasticity movable contact spring is movably set in the below of static contact.
4. the electromagnetic mechanism of a kind of D.C. contactor according to claim 3, is characterized in that: described static contact is provided with fixed contact, the movable end of described elasticity movable contact spring is provided with to conduct electricity the moving contact being connected and coordinating with fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065240.9A CN105551893A (en) | 2016-01-29 | 2016-01-29 | Electromagnetic mechanism of direct current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610065240.9A CN105551893A (en) | 2016-01-29 | 2016-01-29 | Electromagnetic mechanism of direct current contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105551893A true CN105551893A (en) | 2016-05-04 |
Family
ID=55831015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065240.9A Pending CN105551893A (en) | 2016-01-29 | 2016-01-29 | Electromagnetic mechanism of direct current contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105551893A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461354A (en) * | 2018-05-04 | 2018-08-28 | 浙江中凯科技股份有限公司 | A kind of electromagnetic switch |
| CN110491732A (en) * | 2019-08-13 | 2019-11-22 | 四川宏发电声有限公司 | A kind of flip-over type miniature relay |
| CN115360061A (en) * | 2022-09-26 | 2022-11-18 | 北京天创凯睿科技有限公司 | Self-holding electromagnetic contactor and electric control system of fighter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203434091U (en) * | 2013-08-30 | 2014-02-12 | 瑞立集团瑞安汽车零部件有限公司 | Double-coil energy-saving electromagnetic power supply switch |
| JP2014112482A (en) * | 2012-12-05 | 2014-06-19 | Fuji Electric Fa Components & Systems Co Ltd | Electromagnetic contactor |
| CN205335183U (en) * | 2016-01-29 | 2016-06-22 | 浙江奥凯电气有限公司 | Direct current contactor's electromagnetic mechanism |
-
2016
- 2016-01-29 CN CN201610065240.9A patent/CN105551893A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014112482A (en) * | 2012-12-05 | 2014-06-19 | Fuji Electric Fa Components & Systems Co Ltd | Electromagnetic contactor |
| CN203434091U (en) * | 2013-08-30 | 2014-02-12 | 瑞立集团瑞安汽车零部件有限公司 | Double-coil energy-saving electromagnetic power supply switch |
| CN205335183U (en) * | 2016-01-29 | 2016-06-22 | 浙江奥凯电气有限公司 | Direct current contactor's electromagnetic mechanism |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108461354A (en) * | 2018-05-04 | 2018-08-28 | 浙江中凯科技股份有限公司 | A kind of electromagnetic switch |
| CN108461354B (en) * | 2018-05-04 | 2024-01-16 | 浙江中凯科技股份有限公司 | Electromagnetic switch |
| CN110491732A (en) * | 2019-08-13 | 2019-11-22 | 四川宏发电声有限公司 | A kind of flip-over type miniature relay |
| CN115360061A (en) * | 2022-09-26 | 2022-11-18 | 北京天创凯睿科技有限公司 | Self-holding electromagnetic contactor and electric control system of fighter |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160504 |