CN102522266B - Double-breakpoint contactor contact structure adopting flexible coupling device - Google Patents
Double-breakpoint contactor contact structure adopting flexible coupling device Download PDFInfo
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- CN102522266B CN102522266B CN201110408671.8A CN201110408671A CN102522266B CN 102522266 B CN102522266 B CN 102522266B CN 201110408671 A CN201110408671 A CN 201110408671A CN 102522266 B CN102522266 B CN 102522266B
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Abstract
The invention relates to a contact structure, in particular to a double-breakpoint contactor contact structure. The double-breakpoint contactor contact structure comprises a first stationary contact unit (101), a second stationary contact unit (102), a first moving contact unit (201), a second moving contact unit (202), an elastic mechanism (4), a linkage device (5), a flexible coupler (6) and an insulation bracket (7), wherein the first moving contact unit (201) and the second moving contact unit (202) are fixedly connected by the flexible coupler (6); the elastic mechanism (4) is fixedly arranged between the first moving contact unit (201) and the second moving contact unit (202); the insulation bracket (7) is fixedly connected with the elastic mechanism (4) by the linkage device (5); and the elastic mechanism (4) adopts a flakey spring structure. The double-breakpoint contactor contact structure has a high drop-out voltage level, contact voltage on two sides can be balanced, so that the contacts effectively and tightly contact, and the self-cleaning function of the contact surface is realized so as to prolong the service life of the contact.
Description
Technical field
the present invention relates to a kind of structure of contact terminal, relate in particular to a kind of double breaking points lv contactor structure of contact terminal.
Background technology
contactor is a kind of control apparatus of automation, is mainly used in frequent connection or disjunction AC and DC circuit, has control capacity large, can remote operation, and coordinate relay can realize fixed cycle operator, chain control, various quantitative control and decompression and under-voltage protection.
existing for the production of in A.C. contactor, comprise a pair of contact, be conventionally arranged to fixed contact and maintain static, moving contact is at the on-position of On current and cut off between the scram position of electric current and move back and forth with respect to fixed contact.On the one hand, repeatedly cut-offfing and closure, there is no electric current or alive contact because mechanical or electric effect are are progressively worn and torn, surface is gradually uneven.On the other hand, there is contact resistance in contact place, and in normal connection work and breaking current moment, contact can produce localized hyperthermia, after long-term use, and contact surface oxidation.Above-mentioned reason makes between contact good contact completely, and the contact resistance between contact progressively increases, and exposure level progressively reduces, and affects useful life and the breaking capacity of contactor.The A.C. contactor of current use, its electric life is often far smaller than mechanical endurance.
Summary of the invention
the present invention is intended to overcome the deficiencies in the prior art part and provides a kind of volume little, cost is low, drop-out voltage grade is high, can balance contact both sides pressure, reach effective close contact between contact, realize contact surface self-cleaning function simultaneously, thereby reach the double breaking points lv contactor structure of contact terminal of the employing soft connection device that improves contact useful life.
for solving the problems of the technologies described above, the present invention realizes like this.
the double breaking points lv contactor structure of contact terminal that adopts soft connection device, it comprises the first fixed contact unit, the second fixed contact unit, the first moving-contact unit, the second moving-contact unit, elastic mechanism, linkage, is flexible coupling and insulating support; Described the first moving-contact unit and the second moving-contact unit are fixedly connected through being flexible coupling; Described elastic mechanism is fixed between the first moving-contact unit and the second moving-contact unit; Described insulating support is fixedly connected through linkage and elastic mechanism.
as a kind of preferred version, elastic mechanism of the present invention can adopt springs structure.
as another kind of preferred version, the present invention is respectively equipped with projection in the end of described insulating support; On described the first moving-contact unit and the second moving-contact unit, be provided with draw-in groove with above-mentioned protruding correspondence position; The end of described insulating support is through projection and the first moving-contact unit and the fixing clamping of the second moving-contact unit.
further, the present invention can be respectively equipped with groove on described the first moving-contact unit and the second moving-contact unit; Described elastic mechanism and groove clamping.
further, the present invention is fixed with lever in the upper end of described linkage; Described elastic mechanism and lever are fixed clamping.
in addition, the front end of the first moving-contact unit of the present invention and the second moving-contact unit adopts and upwarps structure.
secondly, the first fixed contact unit of the present invention and the second fixed contact unit can adopt U-shaped structure.
again,, there is differential seat angle in the elevation angle of disjunction position in the first fixed contact unit of the present invention and the first moving-contact unit and the second fixed contact unit and the second moving-contact unit.
the present invention has rational in infrastructure, compactness, and volume is little, and cost is low, drop-out voltage grade is high, the features such as balance double break contact pressure and contact self-cleaning function, and its moving contact thickness is 2～3mm, punch forming, not only proof strength but also can reduce weight, contact substitutes easily.In addition, can relative sliding between contact of the present invention, it helps reduce contact resistance, improves the electric conductivity of contact.
Brief description of the drawings
below in conjunction with the drawings and specific embodiments, the invention will be further described.
fig. 1 is front view of the present invention.
fig. 2 is moving contact vertical view of the present invention.
fig. 3 is support vertical view of the present invention.
in figure: 101, the first fixed contact unit; 102, the second fixed contact unit; 201, the first moving-contact unit; 202, the second moving-contact unit; 3, bolt; 4, springs; 5, linkage; 6, be flexible coupling; 7, insulating support; 8, fixed contact bolt; 9, draw-in groove; 10, groove; 11, jack; 12, projection.
Embodiment
as shown in Figure 1, adopt the double breaking points lv contactor structure of contact terminal of soft connection device, it comprises the first fixed contact unit 101, the second fixed contact unit 102, the first moving-contact unit 201, the second moving-contact unit 202, elastic mechanism 4, linkage 5, be flexible coupling 6 and insulating support 7; Described the first moving-contact unit 201 and the second moving-contact unit 202 6 are fixedly connected through being flexible coupling; Described elastic mechanism 4 is fixed between the first moving-contact unit 201 and the second moving-contact unit 202; Described insulating support 7 is fixedly connected through linkage 5 and elastic mechanism 4.
elastic mechanism 4 of the present invention can adopt springs structure.
referring to Fig. 3, the present invention is respectively equipped with projection 12 in the end of described insulating support 7; On described the first moving-contact unit 201 and the second moving-contact unit 202, be provided with draw-in groove 9 with above-mentioned protruding 12 correspondence positions; The end of described insulating support 7 is through projection 12 and the first moving-contact unit 201 and the fixing clamping of the second moving-contact unit 202.
the present invention is respectively equipped with groove 10 on described the first moving-contact unit 201 and the second moving-contact unit 202; Described elastic mechanism 4 and groove 10 clampings.
the present invention is fixed with lever 13 in the upper end of described linkage 5; Described elastic mechanism 4 and the fixing clamping of lever 13.
the front end of the first moving-contact unit 201 of the present invention and the second moving-contact unit 202 adopts and upwarps structure.
the first fixed contact unit 101 of the present invention and the second fixed contact unit 102 can adopt U-shaped structure.
, there is differential seat angle in the elevation angle of disjunction position in the first fixed contact unit 101 of the present invention and the first moving-contact unit 201 and the second fixed contact unit 102 and the second moving-contact unit 202.
the present invention mainly solves contactor after breaking current repeatedly, cause by contact surface wearing and tearing the problem that break performance declines, a kind of New Low Voltage AC contactor touch head structure that is innovative point by soft connection device and springs is provided, can balance contact both sides pressure, reach effective close contact between contact, realize contact surface self-cleaning function simultaneously, improve the contact object in useful life thereby reach.
the present invention by the first fixed contact unit 101, the second fixed contact unit 102, the first moving-contact unit 201, the second moving-contact unit 202, springs 4, linkage 5, be flexible coupling 6 and insulating support 7 form.In the first fixed contact unit 101, the second fixed contact unit 102, the first moving-contact unit 201, the second moving-contact unit 202, dynamic and static contact has differential seat angle at the elevation angle, disjunction position, at make position close contact.In closing course, dynamic and static contact has sliding friction, and this relative sliding had both contributed to clean contact surface oxide, can make again to combine more closely between contact, contributes to reduce contact resistance and improves contact conductivity.
referring to Fig. 2, the first moving-contact unit 201 of the present invention, the second moving-contact unit 202 are stuck in the draw-in groove 9 of insulating support 7, both sides the first moving-contact unit 201 and the second moving-contact unit 202 ends are separately fixed at 6 the two ends of being flexible coupling, after dynamic and static contact closure, by the first fixed contact unit 101, the second fixed contact unit 102, the first moving-contact unit 201, the second moving-contact unit 202 and the 6 common galvanic circles that form that are flexible coupling.In contact closure process, be flexible coupling on 6 and roll over certain angle.
sheet bullet of the present invention 4 lower ends are stuck in the groove 10 of both sides the first moving-contact unit 201 and the second moving-contact unit 202 ends, and upper end is stuck in the lever 13 times of linkage 7, form interlinked mechanism.In contact closure process, linkage 7 compresses springs 4, springs 4 can active balance pressure at both sides, promote the first moving-contact unit 201 and the second moving-contact unit 202 moves downward, until with the first fixed contact unit 101 and the second fixed contact unit 102 close contacts, reach the good effect of contact both sides isostasy.
both sides of the present invention the first moving-contact unit 201 and the second moving-contact unit 202 front ends upwarp respectively, as arc leading angle, the first fixed contact unit 101 and the second fixed contact unit 102 are set to U-shaped structure and fix by bolt and contactor case, in the time of breaking arc, dynamic and static contact acting in conjunction produces and makes the outwards electric power of motion of electric arc, blow-out on arc leading angle, ensures the contact life-span.
in example, due to the first fixed contact unit 101 and the first moving-contact unit 201 and the second fixed contact unit 102 and the second moving-contact unit 202, there is differential seat angle in the elevation angle in disjunction position, from touching the process of complete closure, relative sliding between contact face, clean surface salient point and oxide.Springs 4 can balance both sides moving contact pressure, ensures that between double breaking points, contact force is even.Springs 4 and 6 the setting of being flexible coupling, make above-mentioned two functions be able to good realization.After the complete closure of contact, electric current from one end fixed contact flow into, by moving contact, be flexible coupling, moving contact, finally from other end fixed contact flow out, realize the conducting in whole loop.
due to the elevation angle, disjunction position difference, in the time that dynamic and static contact is in the close position, moving contact is subject to the perk of fixed contact effect end, is flexible coupling and produces bending in the part being connected with moving contact, and this angle is in allowed band.
the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. adopt the double breaking points lv contactor structure of contact terminal of soft connection device, it is characterized in that, comprise the first fixed contact unit (101), the second fixed contact unit (102), the first moving-contact unit (201), the second moving-contact unit (202), elastic mechanism (4), linkage (5), be flexible coupling (6) and insulating support (7); Described the first moving-contact unit (201) is fixedly connected through be flexible coupling (6) with the second moving-contact unit (202); Described elastic mechanism (4) is fixed between the first moving-contact unit (201) and the second moving-contact unit (202); Described insulating support (7) is fixedly connected through linkage (5) and elastic mechanism (4); Elastic mechanism (4) adopts springs structure; Be respectively equipped with projection (12) in the end of described insulating support (7); Above be provided with draw-in groove (9) with above-mentioned projection (12) correspondence position at described the first moving-contact unit (201) and the second moving-contact unit (202); The end of described insulating support (7) is through projection (12) and the first moving-contact unit (201) and the fixing clamping of the second moving-contact unit (202); On described the first moving-contact unit (201) and the second moving-contact unit (202), be respectively equipped with groove (10); Described elastic mechanism (4) and groove (10) clamping; Be fixed with lever (13) in the upper end of described linkage (5); Described elastic mechanism (4) and the fixing clamping of lever (13); The front end of described the first moving-contact unit (201) and the second moving-contact unit (202) adopts and upwarps structure; Described the first fixed contact unit (101) and the second fixed contact unit (102) adopt U-shaped structure; , there is differential seat angle in the elevation angle of disjunction position in described the first fixed contact unit (101) and the first moving-contact unit (201) and the second fixed contact unit (102) and the second moving-contact unit (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408671.8A CN102522266B (en) | 2011-12-09 | 2011-12-09 | Double-breakpoint contactor contact structure adopting flexible coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110408671.8A CN102522266B (en) | 2011-12-09 | 2011-12-09 | Double-breakpoint contactor contact structure adopting flexible coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102522266A CN102522266A (en) | 2012-06-27 |
| CN102522266B true CN102522266B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110408671.8A Expired - Fee Related CN102522266B (en) | 2011-12-09 | 2011-12-09 | Double-breakpoint contactor contact structure adopting flexible coupling device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465154B (en) * | 2014-12-12 | 2018-01-02 | 贵州泰永长征技术股份有限公司 | A kind of contact module of Double-breakpoint universal circuit breaker |
| CN106158513B (en) * | 2015-04-15 | 2018-10-19 | 浙江正泰电器股份有限公司 | The shell mechanism of magnetic latching relay |
| CN106531571B (en) * | 2016-11-24 | 2018-06-15 | 天津航空机电有限公司 | A kind of auxiliary contact breaker with self-cleaning function |
| CN108231441B (en) * | 2018-03-12 | 2024-02-20 | 西安开天铁路电气股份有限公司 | Contact structure |
| CN110783147B (en) | 2019-09-29 | 2021-03-23 | 华为技术有限公司 | Direct current contactor and car |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB511653A (en) * | 1938-09-01 | 1939-08-22 | Herbert Bagshaw Prentice | Improvements in or relating to double break contacts for electrical contactors or switch gear |
| US3344248A (en) * | 1967-09-26 | Switch for high energy circuits | ||
| US5047603A (en) * | 1988-06-27 | 1991-09-10 | Cge Compagnia Generale Elettromeccanica S.P.A. | Electrical contact structures specifically suited for low power circuits |
| CN101447375A (en) * | 2008-12-25 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Combined low-voltage direct current limit switch electric appliance |
| CN202373525U (en) * | 2011-12-09 | 2012-08-08 | 沈阳工业大学 | Contact structure of double-breakpoint and low-voltage contactor adopting flexible connection device |
-
2011
- 2011-12-09 CN CN201110408671.8A patent/CN102522266B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3344248A (en) * | 1967-09-26 | Switch for high energy circuits | ||
| GB511653A (en) * | 1938-09-01 | 1939-08-22 | Herbert Bagshaw Prentice | Improvements in or relating to double break contacts for electrical contactors or switch gear |
| US5047603A (en) * | 1988-06-27 | 1991-09-10 | Cge Compagnia Generale Elettromeccanica S.P.A. | Electrical contact structures specifically suited for low power circuits |
| CN101447375A (en) * | 2008-12-25 | 2009-06-03 | 上海电器科学研究所（集团）有限公司 | Combined low-voltage direct current limit switch electric appliance |
| CN202373525U (en) * | 2011-12-09 | 2012-08-08 | 沈阳工业大学 | Contact structure of double-breakpoint and low-voltage contactor adopting flexible connection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102522266A (en) | 2012-06-27 |
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Granted publication date: 20140806 Termination date: 20181209 |