CN101908441A - Relay contact structure capable of reducing dithering - Google Patents
Relay contact structure capable of reducing dithering Download PDFInfo
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- CN101908441A CN101908441A CN 201010228227 CN201010228227A CN101908441A CN 101908441 A CN101908441 A CN 101908441A CN 201010228227 CN201010228227 CN 201010228227 CN 201010228227 A CN201010228227 A CN 201010228227A CN 101908441 A CN101908441 A CN 101908441A
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- relay
- movable contact
- permanent magnets
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Abstract
The invention discloses a relay contact structure capable of reducing dithering. The relay contact structure comprises a movable contact piece, a movable contact point, a fixed contact piece and a fixed contact point, and is characterized by being provided with one or more permanent magnets which are fixed on the back of the movable contact point or a place in rigid connection with the movable contact piece, and one or more permanent magnets which are fixed on the back of the fixed contact point or a place in rigid connection with the fixed contact piece. Because the relay contact structure is connected with one or a group of the permanent magnets with opposite polarities, when an electromagnetic system of a relay makes the contact points of a contact be in contact with or separate from each other, the dithering is effectively damped, and the relay contact structure can be used for manufacturing various relays with less dithering, high efficiency, low cost and small volume.
Description
One. technical field
The invention belongs to the mechanical ﹠ electrical technology field, particularly relate to the improvement of the relay contact structure in the control apparatus field.Specifically, be a kind of relay contact structure that can reduce shake, shake is seldom when making its contact adhesive and disconnection.
Two. background technology
The electromagnetic type relay contact comprises fixed touching plate, be fixed on fixed contact, movable contact spring on the fixed touching plate, be fixed on the moving contact on the movable contact spring.Shake can be produced when traditional electromagnetic type relay contact contact adhesive and disconnection, the occasion that requires shake little can not be used in.Shake major measure when current its contact adhesive of minimizing and disconnection is to adopt the method that changes mechanical parameter and touch the material of spring system, it for example is the spring system that touches of rigidity for back contact spring, increase the contact by pressure, perhaps little, the modulus of elasticity of the selection of material density reaches the big front contact spring material of vibration attenuation coefficient greatly, the length and width, the increase thickness etc. that perhaps reduce the movable contact reed improve freedom from vibration, and seldom on the structure of contact terminal of relay, take measures, improve freedom from vibration to reduce shake, effectiveness in vibration suppression is limited as a result.
Three. summary of the invention
The objective of the invention is to manufacture and design a kind of relay contact structure that can reduce shake of novel structure, utilize this structure of contact terminal, can make various shakes less, efficient height, cost is low, volume is little relay.
Task of the present invention is finished like this: a kind of relay contact structure that can reduce shake, comprise movable contact spring 1, be fixed on moving contact 3, fixed touching plate 2 on the movable contact spring 1, be fixed on the fixed contact 4 on the fixed touching plate 2, it is characterized by: have be fixed on moving contact 3 back sides or with movable contact spring 1 be rigidly connected one or more local permanent magnets 5, be fixed on fixed contact 4 back sides or with fixed touching plate 2 one or more the local permanent magnets 5 that are rigidly connected.
Always polarity is opposite for the approaching face of two or the two groups permanent magnets of being fixed 5 on movable contact spring 1 and the fixed touching plate 2, is in attracting state all the time.
Adopt the present invention of above measure, owing to be connected to opposite polarity one or one group of permanent magnet, when the electromagnetic system of relay makes the contact of contact contact, there is a natural attraction between the sexes owing to opposite polarity permanent magnet for two contacts, and along with the distance of two contacts is near more, suction is big more, and therefore, the contact shake has obtained effective damping; When the electromagnetic system of relay disconnected the contact contact, there is a natural attraction between the sexes owing to opposite polarity permanent magnet for two contacts, and along with the distance of two contacts is far away more, suction is more little, therefore, disconnects shake and also obtained effective damping.Utilize this structure of contact terminal, also have a benefit, be i.e. after the contact contact, can increase external force again, utilize the suction of two magnets, the contact can keep attracting state, and this is favourable to the structure of improving relay.The present invention can make various shakes less, efficient height, cost is low, volume is little relay.
The invention will be further described in conjunction with the accompanying drawings more below.
Four. description of drawings
Accompanying drawing 1 is the structure chart of the embodiment of the invention 1;
Accompanying drawing 2 is the structural representation of embodiments of the invention 2;
The magnetic latching relay structural representation of accompanying drawing 3 for utilizing the present invention to make;
Accompanying drawing 4 is that the A-A of accompanying drawing 3 is to view;
Accompanying drawing 5 is that the B-B of accompanying drawing 3 is to view.
The present invention is described in further detail in conjunction with the accompanying drawings and embodiments more below.
Five. embodiment
The electromagnetic type relay contact comprises fixed touching plate, be fixed on fixed contact, movable contact spring on the fixed touching plate, be fixed on the moving contact on the movable contact spring.Improvements of the present invention are: have be fixed on moving contact 3 back sides or with movable contact spring 1 be rigidly connected one or more local permanent magnets 5, be fixed on fixed contact 4 back sides or with fixed touching plate 2 one or more the local permanent magnets 5 that are rigidly connected.
Accompanying drawing 1 has provided the concrete structure of the embodiment of the invention 1, and 1: two permanent magnet 5 usefulness Nd-Fe-Bo permanent magnet materials are made cuboid with reference to the accompanying drawings, is bonded in moving contact 3 back sides on the movable contact spring 1 and fixed contact 4 back sides on the static contact 2.The approaching face of two permanent magnets 5 (forward surface) polarity is opposite, always is in attracting state.
Accompanying drawing 3, accompanying drawing 4, accompanying drawing 5 provided jointly utilize the present invention produce shake less, the concrete structure of an embodiment of efficient height, cost is low, volume is little magnetic latching relay.
Accompanying drawing 4, accompanying drawing 5 with reference to the accompanying drawings 3: identical with current relay, the iron core 10 that is fixed with in coil 9, support 8, the coil 9 is set on the Relay base 6, two permanent magnet 5 usefulness Nd-Fe-Bo permanent magnet materials are made cuboid, are bonded in moving contact 3 back sides on the movable contact spring 1 and fixed contact 4 back sides on the static contact 2.The approaching face of two permanent magnets 5 (forward surface) polarity is opposite, always is in attracting state.Be fixed with permanent magnet 7 with corresponding place, iron core 10 tops on the movable contact spring 1.
Magnetic latching relay is work like this:
(1) adhesive.
The voltage of a certain polarity coil 9 is logical, permanent magnet 7 is identical with iron core 10 magnetic and scold the moving contact 3 that makes relay movable contact spring 1 and fixed contact 4 adhesives on the static contact 2; After the relay adhesive, coil 9 has a power failure, because two permanent magnet 5 polarity are opposite up and down, and keeps attracting state.
(2) discharge.
With the voltage of adhesive opposite polarity, permanent magnet 7 and iron core 10 magnetic out-phase are mutually inhaled fixed contact 4 releases on the moving contact 3 that makes relay movable contact spring 1 and the static contact 2 on coil 9 is logical; After relay discharged, coil 9 had a power failure, because permanent magnet 7 is kept release condition with the interattraction of iron core 10.
(3) reduce shake.
Relay is in adhesive or dispose procedure, and the damping action of inhaling mutually owing to permanent magnet 5 makes shake obtain bigger inhibition.It is different or material is different also movable contact spring 1 and static contact 2, moving contact 3 and fixed contact 4 can be made consciously size in addition, make its mechanical resonance parameter inconsistent, cause the frequency of shake different, permanent magnet 5 is inhaled the acting in conjunction of touching spring with different resonant frequencies mutually, overall flutter effect is further reduced, even can eliminate.
Because electromagnetic relay is of a great variety, implement when of the present invention, can be according to electric parameter, movable contact spring 1 and the static contact 2 of electromagnetic system, the magnetic characteristic of permanent magnet 5, and the factors such as tension force of other support components, by calculating and experiment screening, can make the volume size of permanent magnet 5.
Claims (3)
1. one kind can be reduced the relay contact structure of shaking, comprise movable contact spring (1), be fixed on moving contact (3), fixed touching plate (2) on the movable contact spring (1), be fixed on the fixed contact (4) on the fixed touching plate (2), it is characterized by: have be fixed on moving contact (3) back side or with movable contact spring (1) be rigidly connected local one or more permanent magnets (5), be fixed on fixed contact (4) back side or with fixed touching plate (2) local one or more permanent magnets (5) that are rigidly connected.
2. relay contact structure according to claim 1 is characterized by: always polarity is opposite on movable contact spring (1) and the fixed touching plate (2) fixed two or the approaching face of two groups of permanent magnets (5), is in attracting state all the time.
3. relay contact structure according to claim 1 is characterized by: permanent magnet (5) is cuboid or square or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228227 CN101908441A (en) | 2010-07-02 | 2010-07-02 | Relay contact structure capable of reducing dithering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228227 CN101908441A (en) | 2010-07-02 | 2010-07-02 | Relay contact structure capable of reducing dithering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101908441A true CN101908441A (en) | 2010-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010228227 Pending CN101908441A (en) | 2010-07-02 | 2010-07-02 | Relay contact structure capable of reducing dithering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101908441A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254749A (en) * | 2011-06-30 | 2011-11-23 | 北海市深蓝科技发展有限责任公司 | Electromagnetic relay capable of reducing jitter |
| CN103187210A (en) * | 2011-12-30 | 2013-07-03 | Ls产电株式会社 | Dc power relay |
| CN103247482A (en) * | 2013-05-22 | 2013-08-14 | 安徽永安电子科技有限公司 | Special transmission device with flexible shock absorption structure for magnetic latching relay |
| CN103715021A (en) * | 2013-12-18 | 2014-04-09 | 北海市深蓝科技发展有限责任公司 | Micro-jitter contact structure |
| CN103730295A (en) * | 2014-01-13 | 2014-04-16 | 广西睿奕科技发展有限公司 | Magnetic latching relay with flexible static contact part |
| CN103915293A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free relay contact head structure |
| CN103985606A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Contact structure and method for eliminating closing bounce |
| CN110164719A (en) * | 2019-06-04 | 2019-08-23 | 珠海格力电器股份有限公司 | Switching device, the method and apparatus for preventing contact adhesion in switching device |
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| US6034585A (en) * | 1996-04-29 | 2000-03-07 | Siemens Ag | Switching device |
| CN1242586A (en) * | 1998-07-21 | 2000-01-26 | 易通公司 | Fault current tolerable contactor |
| CN1708818A (en) * | 2002-10-28 | 2005-12-14 | 施耐德电器工业公司 | Electrical switching device, relay and electrical apparatus comprising same |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254749A (en) * | 2011-06-30 | 2011-11-23 | 北海市深蓝科技发展有限责任公司 | Electromagnetic relay capable of reducing jitter |
| US9117605B2 (en) | 2011-12-30 | 2015-08-25 | Lsis Co., Ltd. | DC power relay |
| CN103187210A (en) * | 2011-12-30 | 2013-07-03 | Ls产电株式会社 | Dc power relay |
| CN103187210B (en) * | 2011-12-30 | 2015-10-07 | Ls产电株式会社 | DC power relay |
| CN103915293A (en) * | 2013-01-06 | 2014-07-09 | 北海市深蓝科技发展有限责任公司 | Jitter-free relay contact head structure |
| CN103247482A (en) * | 2013-05-22 | 2013-08-14 | 安徽永安电子科技有限公司 | Special transmission device with flexible shock absorption structure for magnetic latching relay |
| CN103247482B (en) * | 2013-05-22 | 2015-11-11 | 安徽永安电子科技有限公司 | The transmission device of magnetic latching relay band special flexible damping structure |
| CN103715021A (en) * | 2013-12-18 | 2014-04-09 | 北海市深蓝科技发展有限责任公司 | Micro-jitter contact structure |
| CN103715021B (en) * | 2013-12-18 | 2016-08-24 | 北海市深蓝科技发展有限责任公司 | A kind of structure of contact terminal of micro-shake |
| CN103730295A (en) * | 2014-01-13 | 2014-04-16 | 广西睿奕科技发展有限公司 | Magnetic latching relay with flexible static contact part |
| CN103985606A (en) * | 2014-03-31 | 2014-08-13 | 国家电网公司 | Contact structure and method for eliminating closing bounce |
| CN103985606B (en) * | 2014-03-31 | 2015-12-30 | 国家电网公司 | A kind of structure of contact terminal and method eliminating closing rebound |
| CN110164719A (en) * | 2019-06-04 | 2019-08-23 | 珠海格力电器股份有限公司 | Switching device, the method and apparatus for preventing contact adhesion in switching device |
| CN110164719B (en) * | 2019-06-04 | 2020-05-19 | 珠海格力电器股份有限公司 | Switching device, method and apparatus for preventing contact adhesion in switching device |
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Application publication date: 20101208 |