CN102610447A - Relay - Google Patents
Relay Download PDFInfo
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- CN102610447A CN102610447A CN2012100820904A CN201210082090A CN102610447A CN 102610447 A CN102610447 A CN 102610447A CN 2012100820904 A CN2012100820904 A CN 2012100820904A CN 201210082090 A CN201210082090 A CN 201210082090A CN 102610447 A CN102610447 A CN 102610447A
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- connecting rod
- relay
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- conductive plate
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Abstract
The invention relates to a movable contact device, specifically relates to a movable contact device for a relay; normal contacts of a current relay has a small separation distance and low contacting pressure; relative sliding and rolling are hardly generated between the contacts so as to cause undesirable effects such as increased contacting resistance, increased contacting temperature and the like after multi-time opening and closing, thus, safety performance of products is reduced. The invention provides a relay, comprising a movable contact (11) and a static contact (12) which are arranged correspondingly, wherein the movable contact (11) is arranged on one end of a conductive board (10); the other end of the conductive board (10) is moveably connected with a support board (18); the movable contact (11) on one end of the conductive board (10) can be moved up and down; a compression spring (17) is arranged nearby the support board (18) on the other end of the conductive board (10) and is used for supporting the conductive board (10); the relay is also provided with a connecting rod device so as to move the conductive board (10) up and down; and the connecting rod device is connected with an electromagnetic iron core (2) on an electromagnetic coil (1) through a drive ring (8).
Description
Technical field
The present invention relates to a kind of trigger device, especially a kind of trigger device that is used for relay.
Background technology
Relay plays automatic connection and cutting action to circuit; At present; The trigger device of relay generally comprises moving contact terminal, movable contact spring and moving contact, and wherein movable contact spring and moving contact are riveted or welded together, and moving contact terminal and movable contact spring are in riveted joint of the termination of moving contact terminal or welding; This tie point becomes the fulcrum of movable contact spring motion, realizes switching on and off of circuit around this fulcrum rotation when movable contact spring is stressed.Movable contact spring is generally the resilient sheet-like structure, during circuit turn-on as electrical current carriers.When the circuit of magnetic latching relay was connected, electric current flowed to movable contact spring, moving contact terminal by fixed contact.Relay inner space size has limited the size of opening distance between current-carrying sectional area and the dynamic and static contact of movable contact spring.The size of opening distance between the at present general dynamic and static contact of electromagnetic relay only can satisfy the requirement of national standard category-A (nominal insulation voltage between 250V and 380V time), and promptly electric clearance is about 1.5mm.This causes the current carrying capacity of movable contact spring low on the one hand, can not satisfy the requirement of safety isolation and the pressure requirement between contact simultaneously.Like pressure between switching life-span, current carrying capacity, safe isolating power and the contact of need raising relay, then can cause the increasing of relay overall volume and need electromagnet with big volume, make cost increase and limit the scope of application of relay.Simultaneously; Movable contact spring and fixed contact are electrical current carriers, and the current direction of fixed contact and movable contact spring is generally oppositely during circuit turn-on, therefore between fixed contact and movable contact spring, have the magnetic field of repelling each other; Impel dynamic and static contact to separate fast; But because relay self does not possess the arc extinguishing ability, therefore when the big electric current of disjunction, be prone to cause dynamic and static contact burning, reduce the reliability of contact work.
Summary of the invention
1, technical problem to be solved:
The size of opening distance between the at present general dynamic and static contact of electromagnetic relay only can satisfy the requirement of national standard category-A (nominal insulation voltage between 250V and 380V time), and promptly electric clearance is about 1.5mm.Movable contact spring and fixed contact are electrical current carriers; The current direction of fixed contact and movable contact spring is generally oppositely during circuit turn-on; Therefore between fixed contact and movable contact spring, there is the magnetic field of repelling each other, impels dynamic and static contact to separate fast, but because relay self does not possess the arc extinguishing ability; Therefore when the big electric current of disjunction, be prone to cause dynamic and static contact burning, reduce the reliability of contact work.For the pressure between fixed contact and the moving contact; In the general magnetic latching relay, relevant with the volume of magnet etc., the general contact pressure of product is lower at present; And seldom between contact, produce slide relative and rolling; So that after repeatedly opening and closing, make the product safety performance to be reduced bad phenomenon such as the increase of two contact resistances, contact temperature rising.
2, technical scheme:
The invention provides a kind of relay; Comprise moving contact 11 and fixed contact 12; Moving contact 11 is corresponding with fixed contact 12, it is characterized in that: moving contact 11 is arranged on conductive plate 10 1 ends, and the other end of conductive plate 10 and support plate 18 flexibly connect; The moving contact 11 of conductive plate 10 1 ends can move up and down; Be provided with compression spring 17 near the other end support plate 18 of conductive plate 10 and be used to support conductive plate 10, relay also is provided with linkage moves up and down conductive plate 10, and linkage is connected with electromagnetic core 2 on the solenoid 1 through driving ring 8.
Linkage is made up of with lower link 9 last connecting rod 5, and last connecting rod 5 one ends are connected with last axle 4, and last axle 4 is supported by last pedestal 3; Last connecting rod 5 other ends connect lower link 9 through axis 7; Lower link 9 one ends are moulded connecting rod 14 with being connected through lower shaft 15, mould connecting rod 14 and are connected with conductive plate 10, and the other end of lower link 9 connects axis 7; Last connecting rod 5 can be done to rotate and bending motion around axis with lower link 9 around axis 7; When last connecting rod 5 and lower link 9 in alignment, when promptly arriving the dead-centre position, moving contact 11 reaches contacting of maximum pressure with fixed contact 12.
When moulding connecting rod 14 and driving conductive plates 10 and move up and down, the horizontal level of moulding connecting rod 14 relies on moulds connecting rod guiding support 16, mould connecting rod guiding support face 161 determining positions the position of moving contact horizontal direction.
3, beneficial effect:
Because the connecting rod that adopts does not need very long length; Can open distance and pressure and current carrying capacity between relay moving contact and the fixed contact effectively improving under the prerequisite that does not increase volume, raises the cost; Substitute the relay of corresponding big volume, expensive, little load with small size, low cost, heavy load relay, can obtain better economic benefit.Because sliding friction and rolling friction between moving contact and fixed contact make to removing on the contact face because pollutants such as electric arc dirt that switching produces and dirt ash in the switching life-span of improving relay, can improve the reliability of contact work; Moving contact and fixed contact are realized large opening, can satisfy the requirement that safety is isolated; The strength of extension spring and compression spring can guarantee the big pressure between moving contact and the fixed contact, reduces the requirement of contact resistance.
Description of drawings
Fig. 1 structural representation of the present invention.
Linkage view when Fig. 2 opens a sluice gate.
Fig. 3, linkage view when closing lock.
Fig. 4 moulds connecting rod and moulds connecting rod guiding support face and contact sketch map.
Fig. 5, the state of opening a sluice gate be contact contact point sketch map when closing the lock state.
Embodiment
The invention provides a kind of relay; Comprise moving contact 11 and fixed contact 12; Moving contact 11 is corresponding with fixed contact 12, it is characterized in that: moving contact 11 is arranged on conductive plate 10 1 ends, and the other end of conductive plate 10 and support plate 18 flexibly connect; Moving contact 11 ends of conductive plate 10 can move up and down; End near support plate 18 of conductive plate 10 is provided with compression spring 17 and is used to support conductive plate 10, and relay also is provided with linkage moves up and down conductive plate 10, and linkage is connected with electromagnetic core 2 on the solenoid 1 through connecting ring 8.
Linkage is made up of with lower link 9 last connecting rod 5, and last connecting rod 5 one ends are connected with last axle 4, and last axle 4 is supported by last pedestal 3; Last connecting rod 5 other ends connect lower link 9 through axis 7; Lower link 9 one ends are moulded connecting rod 14 with being connected through lower shaft 15, mould connecting rod 14 and are connected with conductive plate 10, and the other end of lower link 9 connects axis 7; Last connecting rod 5 can be done to rotate and bending motion around axis with lower link 9 around axis 7; When last connecting rod 5 and lower link 9 in alignment, when promptly arriving the dead-centre position, moving contact 11 reaches contacting of maximum pressure with fixed contact 12.
When moulding connecting rod 14 and driving conductive plates 10 and move up and down; Compression spring 17 is other to be provided with and to mould connecting rod guiding support 16 and be connected with guide post; The horizontal direction position of moulding connecting rod 14 relies on moulds connecting rod guiding support 16, mould connecting rod guiding support face 161 determining positions the position of moving contact horizontal direction.
Because conducting rod 10 has been supported in the effect of compression spring 17, make mobilizable conducting rod 10 can drop movements not take place and make moving contact 11 run into fixed contact 12 because of gravity or general percussion.
The contact pressure that compression spring 17, extension spring 6 keep between moving contact, and moving contact is separated rapidly.
As shown in Figure 1; When the iron core 2 of solenoid 1 moves at left and right directions; Promote or pulling axis 7; When making connecting rod 5 do to stretch Qu Yundong with the axis 7 of lower link 9, lower link 9 is through lower shaft 15 and mould the conductive plate 10 that connecting rod 14 interlocks moving contact 11, makes with the moving contact 11 of conductive plate 10 one to contact fixed contacts 12 or separate fixed contact 12.
Because the effect of extension spring 6 and compression spring 17; When the connecting ring of electromagnetic core 28 promotes axis 7 to the right during acentric point (connecting rod dead point) position, the elastic force of the pulling force of extension spring 6 and compression spring 17 makes connecting rod 5 and the rapid bending of lower link that moving contact 11 is opened from fixed contact 12.For moving contact is opened with a certain distance to stopping, the bottom of connecting rod 5 is designed to than the thin narrow and jut 52 in upper end.As shown in Figure 2, the lug boss 52 of connecting rod lower end and the pin point 522 that lower link groove inwall 92 intersects in the formation, make linkage in this position by locked, the two connecting rods triangle that become a bikini is locked up and down.The position of the lower shaft 15 of lower link 9 interlocks has at this moment determined the position of conduction version 10 with support plate 18, thereby has determined the loop to open a sluice gate the distance (open distance) of back moving contact away from fixed contact.
During combined floodgate, electromagnetic core 2 pulling axis 7 move to the diagram left-hand, begin to contact fixed contact at the certain position moving contact.Along with axis 7 continues left to move, moving contact begins on fixed contact, to produce roll (counterclockwise).Mould connecting rod 14 and move down along moulding connecting rod guiding support 16, lower shaft 15 begins to be moved upward to another position after through upper/lower positions dead point and is locked, and makes connecting rod become a fixed triangle shape lock in the other direction again, and is as shown in Figure 3.At this moment the determining positions of the position of the fulcrum of lower link 9 and conductive plate 10 moving contact 11 and the contact condition of fixed contact 12 of loop when connecting, static before moving contact 11 on fixed contact 12 surfaces, produce reverse rolling phenomenon.
Be the connecting rod guiding support face 161 of moulding that is designed to micro-inclined plane owing to mould connecting rod guiding support 16, as shown in Figure 4.Mould that connecting rod 14 moves down or when moving up, the inclination of moulding connecting rod guiding support face 161 makes moulds connecting rod 14 and in direction as shown moving to the left or to the right of trace is arranged, and this moves and moving contact 11 is produced on fixed contact 12 surfaces slide.The contact surface that is moving contact 11 and fixed contact 12 is producing rolling friction and sliding friction simultaneously, and as shown in Figure 5, the contact point that contact begins is 11a, and the contact contact point the during dead point is 11b, and the contact contact point of "on" position is 11c.Two contacts are not only simple contact and separate; They can be removed on the contact surface because foreign material such as electric arc dirt that switching produces and dirt ashes; And through extension spring 6 and the sufficient contact contact pressure of compression spring 17 maintenances; Reduce contact resistance, improve the switching life-span and the functional reliability of the electric device that continues.
As shown in Figure 1, relay is provided with shell 19, and fixed contact 12 is arranged on the bottom in the shell 19 through static guide plate 13, and bottom and shell that support plate 18 also is arranged in the shell 19 fuse, and moulds connecting rod guiding support 16 and also fuses with shell.
Because the connecting rod that adopts does not need very long length, can improve the contact pressure of contact in the distance of opening that effectively improves under the prerequisite that does not increase volume, do not raise the cost between relay moving contact and the fixed contact, improve current carrying capacity.Substitute the relay of corresponding big volume, expensive, little load with small size, low cost, heavy load relay, can obtain better economic benefit.
Moving contact and fixed contact are realized large opening, can satisfy requirement and the little and stable requirement of contact resistance that safety is isolated.
Claims (7)
1. relay; Comprise moving contact (11) and fixed contact (12); Moving contact (11) is corresponding with fixed contact (12), it is characterized in that: moving contact (11) is arranged on conductive plate (10) one ends, and the other end of conductive plate (10) and support plate (18) flexibly connect; Moving contact (11) end of conductive plate (10) can move up and down; End near support plate (18) of conductive plate (10) is provided with compression spring (17) and is used to support conductive plate (10), and relay also is provided with linkage moves up and down conductive plate (10), and linkage is connected with electromagnetic core (2) on the solenoid (1) through connecting ring (8).
2. relay as claimed in claim 1; It is characterized in that: linkage is made up of last connecting rod (5) and lower link (9), and last connecting rod (5) one ends are connected with last axle (4), and last axle (4) is supported by last pedestal (3); Last connecting rod (5) other end connects lower link (9) through axis (7); Lower link (9) one ends are moulded connecting rod (14) with being connected through lower shaft (15), mould connecting rod (14) and are connected with conductive plate (10), and the other end of lower link (9) connects axis (7); Last connecting rod (5) and lower link (9) can center on axis (7) and do to rotate and bending motion around axis; When last connecting rod (5) and lower link (9) in alignment, when promptly arriving the dead-centre position, moving contact (11) reaches contacting of maximum pressure with fixed contact (12).
3. relay as claimed in claim 2 is characterized in that: the bottom of going up connecting rod (5) is provided with one than the thin narrow jut in upper end (52).
4. relay as claimed in claim 2 is characterized in that: compression spring (17) is other to be provided with and to mould connecting rod guiding support (16) and is connected with conductive plate (10), and the horizontal level of moulding connecting rod (14) relies on to be moulded connecting rod and lead and support (16).
5. relay as claimed in claim 3 is characterized in that: mould the connecting rod guiding support face (161) of moulding that connecting rod guiding support (16) is designed to micro-inclined plane and be micro-inclined plane.
6. according to claim 1 or claim 2 relay is characterized in that: the going up to be provided with between axle (4) and the lower shaft (15) of linkage drawn high spring (6).
7. like the described relay of the arbitrary claim of claim 1-5; It is characterized in that: relay is provided with shell (19); Fixed contact (12) is arranged on the bottom in the shell (19) through static guide plate (13); Bottom and shell (19) that support plate (18) also is arranged in the shell (19) fuse, and mould connecting rod guiding support (16) and also fuse with shell (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100820904A CN102610447A (en) | 2012-03-27 | 2012-03-27 | Relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100820904A CN102610447A (en) | 2012-03-27 | 2012-03-27 | Relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102610447A true CN102610447A (en) | 2012-07-25 |
Family
ID=46527742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100820904A Pending CN102610447A (en) | 2012-03-27 | 2012-03-27 | Relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102610447A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971914A (en) * | 2017-05-11 | 2017-07-21 | 嘉灵开关制造(中山)有限公司 | High breaking relay |
| CN108417446A (en) * | 2018-05-15 | 2018-08-17 | 苏州胜璟电磁科技有限公司 | A kind of electromagnetic switch energy saver |
| WO2020083329A1 (en) * | 2018-10-24 | 2020-04-30 | 首瑞（天津）电气设备有限公司 | Electrical component |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173418A (en) * | 1985-01-25 | 1986-08-05 | 松下電工株式会社 | Contact switchgear |
| US5012053A (en) * | 1988-03-24 | 1991-04-30 | Terasaki Denki Sangyo Kabushiki Kaisha | Contact device for a switch |
| CN201289812Y (en) * | 2009-03-13 | 2009-08-12 | 扬州北辰电气设备有限公司 | Operating mechanism of load switch |
| CN202585273U (en) * | 2012-03-27 | 2012-12-05 | 镇江的可电器科技有限公司 | Relay |
-
2012
- 2012-03-27 CN CN2012100820904A patent/CN102610447A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173418A (en) * | 1985-01-25 | 1986-08-05 | 松下電工株式会社 | Contact switchgear |
| US5012053A (en) * | 1988-03-24 | 1991-04-30 | Terasaki Denki Sangyo Kabushiki Kaisha | Contact device for a switch |
| CN201289812Y (en) * | 2009-03-13 | 2009-08-12 | 扬州北辰电气设备有限公司 | Operating mechanism of load switch |
| CN202585273U (en) * | 2012-03-27 | 2012-12-05 | 镇江的可电器科技有限公司 | Relay |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971914A (en) * | 2017-05-11 | 2017-07-21 | 嘉灵开关制造(中山)有限公司 | High breaking relay |
| CN108417446A (en) * | 2018-05-15 | 2018-08-17 | 苏州胜璟电磁科技有限公司 | A kind of electromagnetic switch energy saver |
| WO2020083329A1 (en) * | 2018-10-24 | 2020-04-30 | 首瑞（天津）电气设备有限公司 | Electrical component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |