CN202796765U - Electromagnetic contactor - Google Patents
Electromagnetic contactor Download PDFInfo
- Publication number
- CN202796765U CN202796765U CN2012203707788U CN201220370778U CN202796765U CN 202796765 U CN202796765 U CN 202796765U CN 2012203707788 U CN2012203707788 U CN 2012203707788U CN 201220370778 U CN201220370778 U CN 201220370778U CN 202796765 U CN202796765 U CN 202796765U
- Authority
- CN
- China
- Prior art keywords
- contact
- iron core
- moving
- static
- fixed
- 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
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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
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
- H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/541—Auxiliary contact devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
- H01H50/546—Contact arrangements for contactors having bridging contacts
Abstract
The utility model relates to an electromagnetic contactor, comprising a static contact piece, a moving contact piece, a static iron core, a moving iron core, a return spring and a crossbeam. The static contact piece is used for the fixation of the static contact of the electric power circuit electrically connected between a power supply side and a load; the moving contact piece is used for the fixation of the moving contact contacted to or separated from the moving contact; the static iron core is excitated or demagnetized for the contact or separation of the static contact and the moving contact; the moving iron core is attracted for the excitation of the static iron core to move toward the static iron core; the return spring provides elasticity for the moving iron core, and thereby the moving iron core departs from the static iron core; the crossbeam moves with the movement of the moving iron core through linkage, and the moving contact piece moves; and the static contact piece comprises a wire connecting terminal portion possessing a wire connecting terminal electrically connected with the external power supply or the load side and a contact fixing portion integrally connected with the wire connecting terminal portion by molding, wherein the contact fixing portion is bended from one side of the wire connecting terminal portion for the fixation of the static contact.
Description
Technical field
The utility model relates to electromagnetic contactor.
Background technology
Electromagnetic contactor (magnetic contactor) is according to whether incoming control signal opens and closes the power supply line road, the power equipment that the power circuit of subtend motor even load supply opens and closes.This electromagnetic contactor is mainly as the control purposes that makes motor operation and stop.
As everyone knows, this electromagnetic contactor comprises: static contact, and the fixed contact that is connected in the power circuit between mains side and load for conduction is fixed; Movable contact spring is fixed for the moving contact that contacts described fixed contact or separate with fixed contact; Static iron core (stationary core) is according to whether incoming control signal carries out excitation (magnetizing) or demagnetization (demagnetizing); Moving iron core because the excitation of described static iron core is attracted, moves to described static iron core; Back-moving spring provides elasticity to described moving iron core, and it is moved to the direction of leaving described static iron core; And crossbeam (crossbar), the movement that links with the movement of described moving iron core is moved described movable contact spring.And described static contact generally comprises: portion of terminal is connected in the power circuit of mains side or load-side; And contact section, for fixing the contact.
Fig. 1 is the stereogram that shows the static contact of the electromagnetic contactor that consists of prior art.
As shown in Figure 1, the static contact 10 of prior art comprises: the first member 11, have both measured lengths, and be tabular; And second component 12, extend to equidirectional at both ends, is the U font.At an end of described the first member 11, be formed with the binding post 11a as the portion of terminal of mains side or load-side.And opposite one side of described binding post 11a is fixed in an end of described second component 12, namely is fixed in the other end of described the first member 11.For example, an end of described second component 12 can utilize welding to wait the other end of being fixed in described the first member 11.And, in the other end of described second component 12, possess contact fixed part 12a is arranged.At described contact fixed part 12a, be fixed with contact 13.Described contact fixed part 12a is fixed in such as utilizing welding to wait in described contact 13.In addition, described the first member 11 and second component 12 append fixing by means of the connecting piece S such as screw.
Thus, in the prior art, described the first member 11 and second component 12 form respectively, by means of welding and connecting piece S and interfixing.Therefore, as described the first member 11 and second component 12 combination by means of described connecting piece S of variety classes conductor, thereby if produce heat in the running of electromagnetic contactor, then the internal driving of described the first member 11 and second component 12 increases.And if the internal resistance of this described the first member 11 and second component 12 increases, so, owing to the intensification that therefore causes and deteriorated, product may be damaged.
In addition, in the prior art, described the first member 11 that is welded to each other and second component 12 is because the operation error in the process that binding process or the described contact 13 of described connecting piece S are welded in described second component 12 etc., and described contact 13 may be fixed in the position that breaks away from design attitude.Therefore, in the contact process of described contact 13, may cause damage of product because excessive electric arc occurs.
The utility model content
The utility model is used for addressing the above problem, and the purpose of this utility model provides a kind of electromagnetic contactor that can prevent damage of product.
For reaching above-mentioned purpose, a kind of form of the embodiment of electromagnetic contactor of the present utility model comprises static contact, movable contact spring, static iron core, moving iron core, back-moving spring and crossbeam, wherein, described static contact is fixed for the fixed contact that conduction is connected in the power circuit between mains side and load, described movable contact spring is fixed for the moving contact that contacts described fixed contact or separate with described fixed contact, described static iron core is for the contact of described fixed contact and moving contact or separation and excitation or demagnetization, described moving iron core is attracted because of the excitation of described static iron core, move to described static iron core, described back-moving spring provides elasticity to described moving iron core, and described moving iron core is moved to the direction of leaving described static iron core; The movement of described crossbeam and described moving iron core and the movement that links is moved described movable contact spring, wherein said static contact comprises: binding post section possesses the binding post that is connected with power supply or the load-side power circuit conduction of outside; And the contact fixed part, one-body molded with described binding post section, from a side bending of described binding post section, fix for described fixed contact.
In the embodiment of electromagnetic contactor of the present utility model, static contact is formed by a member.Therefore, according to embodiment of the present utility model, can prevent from causing because of the heat that occurs in the electromagnetic contactor running phenomenon of the internal resistance inequality of described static contact, the position of contact can keep the value that designs.
In addition, in embodiment of the present utility model, by means of guide hump, fixing position, guiding contact.Therefore, according to embodiment of the present utility model, described contact is fixed in the position of design, thereby can guarantee the operational reliability of product.
Description of drawings
Fig. 1 is the stereogram that shows the static contact of the electromagnetic contactor that consists of prior art.
Fig. 2 is the stereogram that shows the static contact of the embodiment that consists of electromagnetic contactor of the present utility model.
Fig. 3 is the profile that shows the critical piece of embodiment of the present utility model.
Embodiment
With reference to the accompanying drawings, further describe the embodiment of electromagnetic contactor of the present utility model.
Fig. 2 is the stereogram that shows the static contact of the embodiment that consists of electromagnetic contactor of the present utility model, and Fig. 3 is the profile that shows the critical piece of embodiment of the present utility model.For the inscape same as the prior art in the inscape of present embodiment, omit detailed description thereof.
As shown in Figures 2 and 3, the static contact 100 of the electromagnetic contactor of formation present embodiment is formed by a member bending.More specifically, described static contact 100 comprises binding post section 110 and contact fixed part 120.Essence, described binding post section 110 and contact fixed part 120 are one-body molded.
More specifically, described binding post section 110 is to have the tabular formation of preseting length.And the end in described binding post section 110 is formed with the binding post 111 as the portion of terminal of mains side or load-side.On described binding post 111, can be formed with the connect apertures 113 for connection terminal screw (not shown).
And described contact fixed part 120 is from opposite one side of described binding post 111, namely extends from the other end of described binding post section 110.Can say that in fact described contact fixed part 120 roughly is bent into by the part of described binding post section 110
Font forms.At this moment, the one side of described contact fixed part 120 disposes abreast with the one side of described binding post section 110.Essence, on Fig. 2 of accompanying drawing, the top in parallel to each other configuration of the top and described contact fixed part 120 of described binding post section 110.
And possessing at described contact fixed part 120 has fixed area 121.Described fixed area 121 is provided to the side of the described contact fixed part 120 of configuration abreast with described binding post section 110.At described contact fixed part 120, by means of the welding etc., be fixed with fixed contact 130.
In addition, in described fixed area 121, possess guide hump 123 is arranged.Described guide hump 123 protrudes from the side direction top of described fixed area 121.The position of the described fixed contact 130 of described fixed area 121 is fixed in described guide hump 123 guiding.For example, as shown in Figure 2, the user can be disposed at described fixed contact 130 on the described fixed area 121, and the interval of maintenance and described guide hump 123.Again for example, the user can be disposed at described fixed contact 130 on the described fixed area 121, and contacts described guide hump 123.Therefore, essence, the shape of described guide hump 123 forms with the shape of coincideing with described fixed contact 130.
The below further describes the effect of the embodiment of electromagnetic contactor of the present utility model.
At first, if power supply access static iron core (not shown), so, by means of the attraction of described static iron core, moving iron core (not shown) moves to described static iron core.And by means of the movement of described static iron core, if crossbeam 30 moves, then movable contact spring 20 links with it, moves to static contact 100.And, by means of the movement of described movable contact spring 20, the fixing moving contact 21 contact fixed contacts 130 of described movable contact spring 20, thus by means of electromagnetic contactor, power supply is fed to load-side.
On the contrary, be cut off if access the power supply of described static iron core, then described static iron core no longer produces attraction.Described moving iron core moves to the direction of leaving described static iron core by means of the elastic force of back-moving spring (not shown).And by means of the movement of described moving iron core, described crossbeam 30 and movable contact spring 20 move, thereby described moving contact 21 leaves from described fixed contact 130.Therefore, by means of electromagnetic contactor, cut off the power supply supply to load-side.
Yet, in the present embodiment, essence, described static contact 100 is formed by a member.Therefore, in the present embodiment, can save and make described static contact 100 required member parts and the number of working processes, prevent the thermal deformation of the described static contact 100 in the running.
And in the present embodiment, described fixed contact 130 fixing positions are subject to guide hump 123 guiding.Therefore, in the present embodiment, described fixed contact 130 is fixed in the position of design exactly, thereby can guarantee the operational reliability of product.
In the category of this basic fundamental thought of the present utility model, the person of an ordinary skill in the technical field can carry out other various deformation, and interest field of the present utility model should make an explanation based on utility model right claim.
Claims (5)
1. electromagnetic contactor, comprise static contact, movable contact spring, static iron core, moving iron core, back-moving spring and crossbeam, wherein, described static contact is fixed for the fixed contact that conduction is connected in the power circuit between mains side and load, described movable contact spring is fixed for the moving contact that contacts described fixed contact or separate with described fixed contact, described static iron core is for the contact of described fixed contact and moving contact or separation and excitation or demagnetization, described moving iron core is attracted because of the excitation of described static iron core, move to described static iron core, described back-moving spring provides elasticity to described moving iron core, and described moving iron core is moved to the direction of leaving described static iron core; The movement of described crossbeam and described moving iron core and the movement that links is moved described movable contact spring is characterized in that described static contact comprises:
Binding post section possesses the binding post that is connected with power supply or the load-side power circuit conduction of outside; And
The contact fixed part, one-body molded with described binding post section, from a side bending of described binding post section, fix for described fixed contact.
2. electromagnetic contactor according to claim 1 is characterized in that:
Described contact fixed part is bent into by an end of described binding post section
Shape forms.
3. electromagnetic contactor according to claim 1 is characterized in that:
The guide hump that possesses the fixed position of the described fixed contact of guiding in described fixed contact section.
4. electromagnetic contactor according to claim 3 is characterized in that:
Described guide hump contacts with described fixed contact, or leaves from described fixed contact by the distance of having set.
5. electromagnetic contactor according to claim 3 is characterized in that:
Described guide hump forms with the shape of coincideing with described fixed contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020110006995U KR200464863Y1 (en) | 2011-08-01 | 2011-08-01 | Stationary Contact with Single Member For Magnetic Contactor |
| KR20-2011-0006995 | 2011-08-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796765U true CN202796765U (en) | 2013-03-13 |
Family
ID=47823970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203707788U Expired - Lifetime CN202796765U (en) | 2011-08-01 | 2012-07-27 | Electromagnetic contactor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200464863Y1 (en) |
| CN (1) | CN202796765U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845509A (en) * | 2017-12-08 | 2018-03-27 | 温州宏丰电工合金股份有限公司 | Electrical contact component and its processing method with integral type location structure |
| CN109148225A (en) * | 2017-06-28 | 2019-01-04 | 富士通电子零件有限公司 | electromagnetic relay |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101869718B1 (en) * | 2014-05-30 | 2018-06-21 | 엘에스산전 주식회사 | Electromagnetic Contactor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11162319A (en) | 1997-12-01 | 1999-06-18 | Fuji Electric Co Ltd | Contact device of electromagnetic contactor |
-
2011
- 2011-08-01 KR KR2020110006995U patent/KR200464863Y1/en active IP Right Grant
-
2012
- 2012-07-27 CN CN2012203707788U patent/CN202796765U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148225A (en) * | 2017-06-28 | 2019-01-04 | 富士通电子零件有限公司 | electromagnetic relay |
| CN109148225B (en) * | 2017-06-28 | 2020-10-23 | 富士通电子零件有限公司 | Electromagnetic relay |
| CN107845509A (en) * | 2017-12-08 | 2018-03-27 | 温州宏丰电工合金股份有限公司 | Electrical contact component and its processing method with integral type location structure |
Also Published As
| Publication number | Publication date |
|---|---|
| KR200464863Y1 (en) | 2013-01-22 |
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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: 20130313 |