CN105023808A - Novel key-type conducting contact - Google Patents
Novel key-type conducting contact Download PDFInfo
- Publication number
- CN105023808A CN105023808A CN201510438770.9A CN201510438770A CN105023808A CN 105023808 A CN105023808 A CN 105023808A CN 201510438770 A CN201510438770 A CN 201510438770A CN 105023808 A CN105023808 A CN 105023808A
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- CN
- China
- Prior art keywords
- contact
- contacts
- cone
- conductive
- moving
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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
Abstract
A novel key-type conducting contact belongs to the field of electric control devices and especially relates to a novel key-type conducting contact having a long service lifetime and capable of avoiding point contact which leads to oversize current. The novel key-type conducting contact is characterized by comprising two contacts, where one is a movable contact while the other one is a static contact. The movable contact is in contact with the static contact. One of the contacts is in the shape of a cone while the other one of the contacts is in the shape of an inner cone, wherein the cone fits the inner cone. The contact area of the movable contact and the static contact is increased effectively by utilizing the cone and the conducting contact area of the contacts is enlarged fully in the moment of contacting, so that prospective current is let through. According to theinvention, the contact area of the conducting contact is increased effectively in unit space. At the same time, an arc striking pin is utilized for releasing electric arcs between the contacts, so that the service lifetimes of the key-type switch and a relay are prolonged and dependence and consumption of rare and precious metals are reduced compared with manufacture of traditional contacts.
Description
Technical field
The invention belongs to electric control devices field, especially to benefit from the life-span long for one, the Novel electric keyed conductive contact that point cantact can be avoided to cause electric current excessive.
Background technology
Relay is a kind of important electrical control device of extensive utilization.It has control system (also known as input circuit) and by the interactive relationship between control system (also known as output loop).Usually be applied in the control circuit of automation, it is actually the one " automatic switch " going to control big current running with small area analysis, therefore plays the effects such as automatic adjustment, safeguard protection, change-over circuit in circuit.
The kind of relay is a lot, has electromagnetic relay, solid-state relay, temperature-sensitive dry-reed relay, reed relay, optical relay and the time relay.Electromagnetic relay is generally made up of iron core, coil, armature, contact reed etc.As long as add certain voltage at coil two ends, certain electric current will be flow through in coil, thus generation galvanomagnetic effect, the pulling force that armature will overcome return spring under the effect of electromagnetic attracting force is inhaled to iron core, thus the moving contact of band moving armature and fixed contact (normally opened contact) adhesive.When after coil blackout, the suction of electromagnetism also disappears thereupon, and armature will return to original position at the reaction force of spring, and moving contact and original fixed contact (normally-closed contact) are discharged.Such adhesive, release, thus the object reaching conducting in circuit, cut-out.
Be no matter the relay of which kind, conductive contact is all the most important part of relay.Their performance is by the impact of the type of the material of contact, institute's making alive and current value, load, operating frequency, atmospheric humidity and temperature environment, contact configurations and action.If wherein any factor can not meet predetermined value, the metal electro-deposition such as between contact may be caused, contact weld, wearing and tearing, or contact resistance such as to increase fast at the problem.Ideally, contact resistance its contact resistance when the closing of contact of relay is zero, and when disconnecting in contact, its contact resistance is infinitely great.But produce electric arc because contact to be transitioned into by closure state in the process of off-state in actual use, contact is easily oxidized, cause the contact-making surface out-of-flatness of contact, resistance increase, conductance reduces, affect the useful life of relay, therefore, the contact-making surface of current conductive contact all does as far as possible smooth, to increase conductive contact area, and select the good material of oxidation resistent susceptibility to improve the useful life of relay contact.But, however, due to relay in use, its moving contact contacts with fixed contact with movement in a curve track, therefore the mode always with point cantact when two contacts contact at the beginning realizes, the electric current now passed through due to this conductive contact is very big, and easily cause the damage to conductive contact, what cannot ensure relay continuation reaches conduction predetermined current value.
At present, at whole world industrial automation, particularly in Intelligent electric gasification industry, more and more electronic switch that adopts controls, controlling large power-consuming equipment generally will use relay as control assembly, find in actual use, some electrical appliances, as automatically responded to electronics switch control rule electricity-saving lamp etc., these new type light sources require all very high to the load capacity of relay conductive contact, the life-span of conductive contact is caused to be declined to a great extent, relay as 10A can meet incandescent lamp 1500W, if but connect T5 fluorescent lamp at most can only 300W, and failure rate is still very high.Analyzing its reason is because electricity-saving lamp, T5 fluorescent tube, LED have an electric ballast carried, bulky capacitor is had to exist in its circuit, at more than 150 times that its energising moment impact electric current is running current, seldom there is conductive contact can bear rush of current large like this, and in energising moment contacts welding and adhesion.If solve problem from the angle of conductive contact merely, certainly will to look for the conductive contact that can bear large impact electric current, even if but finding the conductive contact that such material makes, its cost may be several times of common conductive contact, and this is for unaffordable beyond doubt common electronic switch.
Summary of the invention
To be solved by this invention is exactly with in traditional power consumption control in current automated control technology, require high to relay conductive contact load capacity, common conductive contact endurance declines to a great extent, the problem reaching predetermined value of relay continuation cannot be ensured, the telegraph key formula conductive contact of the new structure in a kind of novel effective raising conductive contact life-span is provided.
Novel electric keyed conductive contact of the present invention, it is characterized in that this conductive contact comprises two contacts, one of them is moving contact, another is fixed contact, moving contact contacts with fixed contact, one of them gets an electric shock in cone shape, another gets an electric shock as inner circle cone, cone shape and inner circle cone match, cone is utilized effectively to increase the contact area of moving contact and fixed contact, fully expand the conductive contact area of contact in the moment of contact, with by prospective current, avoid the defect that traditional relay conductive contact contact area is insufficient.
Described fixed contact female cone summit place is provided with a striking pin, on moving contact, relevant position is provided with a pin hole, at moving contact gradually near fixed contact, until in the process that contacts with fixed contact of moving contact, for discharging electric arc, avoid in contact process, the powerful electric arc of abrupt release causes damage to conductive contact.
Novel electric keyed conductive contact of the present invention, in use, the shape of conductive contact is become cone shape, in unit space, effectively increase the contact area of conductive contact, avoid at the immediate current of contact excessive, striking pin is set on moving contact simultaneously, in contact process, can electric arc be discharged, avoid contact in the moment of contact, discharge powerful electric arc, contact is caused damage, so effectively improve the useful life of relay.
Novel electric keyed conductive contact of the present invention, structure is simple, reasonable in design, easy to use, the contact area of conductive contact is effectively increased in unit space, utilize striking pin to shift to an earlier date electric arc between releasing contact simultaneously, improve electric key swich and relay conduction useful life, reduce conventional contact to the dependence of rare precious metal and consumption.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 moving contact structural representation.
Fig. 2 is the embodiment of the present invention 1 fixed contact structural representation.
Fig. 3 is the embodiment of the present invention 1 moving contact side schematic view.
Fig. 4 is the embodiment of the present invention 1 fixed contact side schematic view.
Fig. 5 is the embodiment of the present invention 3 moving contact structural representation.
Fig. 6 is the embodiment of the present invention 3 fixed contact structural representation.
Wherein, moving contact 1, fixed contact 2, pin hole 3, striking pin 4.
Embodiment
Embodiment 1: a kind of telegraph key formula conductive contact, comprise two contacts, one of them is moving contact 1, another is fixed contact 2, moving contact 1 contacts with fixed contact 2, wherein moving contact 1 is in cone shape, fixed contact 2 is inner circle cone, cone shape and inner circle cone match, cone is utilized effectively to increase the contact area of moving contact 1 and fixed contact 2, fully expand the conductive contact area of contact in the moment of contact, with by prospective current, avoid the defect that traditional relay conductive contact contact area is insufficient.Fixed contact 2 female cone summit place is provided with a striking pin 4 simultaneously, on moving contact 1, relevant position is provided with a pin hole 3, at moving contact 1 gradually near fixed contact 2, until in the process that contacts with fixed contact 2 of moving contact 1, for discharging electric arc, avoid in contact process, the powerful electric arc of abrupt release causes damage to conductive contact.
In use, the shape of conductive contact is become cone shape, in unit space, effectively increase the contact area of conductive contact, avoid at the immediate current of contact excessive, striking pin 4 is set on moving contact 1 simultaneously, in contact process, can electric arc be discharged, avoid contact in the moment of contact, discharge powerful electric arc, contact is caused damage, so effectively improves the useful life of relay.
Embodiment 2: a kind of telegraph key formula conductive contact, comprise two contacts, one of them is moving contact 1, another is fixed contact 2, moving contact 1 contacts with fixed contact 2, wherein fixed contact 2 is in cone shape, moving contact 1 is inner circle cone, cone shape and inner circle cone match, cone is utilized effectively to increase the contact area of moving contact 1 and fixed contact 2, fully expand the conductive contact area of contact in the moment of contact, with by prospective current, avoid the defect that traditional relay conductive contact contact area is insufficient.
Embodiment 3: a kind of telegraph key formula conductive contact, comprise two contacts, one of them is moving contact 1, another is fixed contact 2, moving contact 1 contacts with fixed contact 2, wherein moving contact 1 is in cone shape, fixed contact 2 is inner circle cone, cone shape and inner circle cone match, cone is utilized effectively to increase the contact area of moving contact 1 and fixed contact 2, fully expand the conductive contact area of contact in the moment of contact, with by prospective current, avoid the defect that traditional relay conductive contact contact area is insufficient.
Claims (2)
1. a Novel electric keyed conductive contact, it is characterized in that this conductive contact comprises two contacts, one of them is moving contact (1), another is fixed contact (2), moving contact (1) contacts with fixed contact (2), one of them gets an electric shock in cone shape, another gets an electric shock as inner circle cone, cone shape and inner circle cone match, cone is utilized effectively to increase the contact area of moving contact (1) and fixed contact (2), the conductive contact area of contact is fully expanded in the moment of contact, to pass through prospective current, avoid the defect that traditional relay conductive contact contact area is insufficient.
2. Novel electric keyed conductive contact as claimed in claim 1, it is characterized in that described fixed contact (2) female cone summit place is provided with a striking pin (4), the upper relevant position of moving contact (1) is provided with a pin hole (3), at moving contact (1) gradually near fixed contact (2), until in the process that contacts with fixed contact (2) of moving contact (1), for discharging electric arc, avoid in contact process, the powerful electric arc of abrupt release causes damage to conductive contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438770.9A CN105023808A (en) | 2015-07-24 | 2015-07-24 | Novel key-type conducting contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438770.9A CN105023808A (en) | 2015-07-24 | 2015-07-24 | Novel key-type conducting contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105023808A true CN105023808A (en) | 2015-11-04 |
Family
ID=54413694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510438770.9A Pending CN105023808A (en) | 2015-07-24 | 2015-07-24 | Novel key-type conducting contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105023808A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449414A (en) * | 2015-12-29 | 2016-03-30 | 中物功能材料研究院有限公司 | Scalable contact conductive connection device |
| CN105449413A (en) * | 2015-12-29 | 2016-03-30 | 中物功能材料研究院有限公司 | Telescopic contact |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004438Y (en) * | 2007-02-05 | 2008-01-09 | 厦门金合捷投资控股有限公司 | Electromagnetic relay with resistance electric exclusion force |
| CN201215785Y (en) * | 2008-04-30 | 2009-04-01 | 黄胜乐 | Air pressure type load switch |
| US20130335177A1 (en) * | 2011-03-22 | 2013-12-19 | Panasonic Corporation | Contact device |
| CN203674098U (en) * | 2013-12-18 | 2014-06-25 | 北海市深蓝科技发展有限责任公司 | Electromagnetic relay of micro vibration |
| US20140368302A1 (en) * | 2013-06-14 | 2014-12-18 | Shanghai Wanjia Precision Components Co.,Ltd | Relay contact system |
| CN204792627U (en) * | 2015-07-24 | 2015-11-18 | 云南承泰科技有限公司 | Novel telegraph key formula conductive contact |
-
2015
- 2015-07-24 CN CN201510438770.9A patent/CN105023808A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201004438Y (en) * | 2007-02-05 | 2008-01-09 | 厦门金合捷投资控股有限公司 | Electromagnetic relay with resistance electric exclusion force |
| CN201215785Y (en) * | 2008-04-30 | 2009-04-01 | 黄胜乐 | Air pressure type load switch |
| US20130335177A1 (en) * | 2011-03-22 | 2013-12-19 | Panasonic Corporation | Contact device |
| US20140368302A1 (en) * | 2013-06-14 | 2014-12-18 | Shanghai Wanjia Precision Components Co.,Ltd | Relay contact system |
| CN203674098U (en) * | 2013-12-18 | 2014-06-25 | 北海市深蓝科技发展有限责任公司 | Electromagnetic relay of micro vibration |
| CN204792627U (en) * | 2015-07-24 | 2015-11-18 | 云南承泰科技有限公司 | Novel telegraph key formula conductive contact |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449414A (en) * | 2015-12-29 | 2016-03-30 | 中物功能材料研究院有限公司 | Scalable contact conductive connection device |
| CN105449413A (en) * | 2015-12-29 | 2016-03-30 | 中物功能材料研究院有限公司 | Telescopic contact |
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Legal Events
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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 |
Application publication date: 20151104 |
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| RJ01 | Rejection of invention patent application after publication |