CN103794414A - Relay - Google Patents
Relay Download PDFInfo
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- CN103794414A CN103794414A CN201210430582.8A CN201210430582A CN103794414A CN 103794414 A CN103794414 A CN 103794414A CN 201210430582 A CN201210430582 A CN 201210430582A CN 103794414 A CN103794414 A CN 103794414A
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- contact
- movable contact
- touching plate
- fixed touching
- contact spring
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Abstract
The invention provides a relay which helps to solve the technical problem that temperature rise of a contact point in a conventional relay is quick, the contact point is easy to be damaged by an arc, and thus the service life of the contact point is reduced. A relay comprises a moving contact, an upper static contact and a lower static contact. The moving contact, the upper static contact and the lower static contact are respectively added with auxiliary contacts. The auxiliary contacts share half of an on-off current, so that the speed of temperature rise is allowed to be slow, the on-off current that the relay can bear wholly is twice as much as the original on-off current, contact loss is reduced, and on-off frequency of the relay is more than twice as much as the original on-off frequency.
Description
Technical field
The present invention relates to a kind of relay.
Background technology
Existing relay, comprises iron core, coil, movable contact spring, contact, fixed touching plate etc.As shown in Figure 1, as long as add certain voltage at coil two ends, in coil, will flow through certain electric current, thereby generation galvanomagnetic effect, movable contact spring will overcome the pulling force of return spring under the effect of electromagnetic attracting force to be inhaled to iron core, thereby drives moving contact and fixed contact (normally opened contact) adhesive of movable contact spring.When after coil blackout, the suction of electromagnetism also disappears thereupon, and movable contact spring will return to original position under the reaction force of spring, makes moving contact and original fixed contact (normally-closed contact) adhesive.Adhesive like this, release, thus reach the conducting in circuit, the object of cut-out.For " often open, normally closed " contact of relay, can distinguish like this: the fixed contact in off-state when relay coil is not switched on, is called " normally opened contact "; Fixed contact in on-state is called " normally-closed contact ".
The relay of this structure, in the time that contact is in contact with one another and separate, can form electric arc between contact, causes burning of contact, reduces the useful life of device, and impact is normally worked, and increases repair rate and device replacement frequency.When relay is during in long conducting state, the temperature rise between contact is fast, and temperature is high, causes contact loss serious, has shortened useful life.
Summary of the invention
The invention provides a kind of relay, the contact temperature rise that has solved existing relay soon, easily caused the technical problem of the lost of life by arc damage.
Technical solution of the present invention is:
A kind of relay, comprise movable contact spring, upper fixed touching plate and lower fixed touching plate, the upper and lower surface of described movable contact spring is provided with contact, the top of movable contact spring is provided with fixed touching plate, the below of movable contact spring is provided with lower fixed touching plate, the lower surface of upper fixed touching plate is provided with the upper contact corresponding with movable contact spring upper surface contact position, the upper surface of lower fixed touching plate is provided with the lower contact corresponding with movable contact spring lower surface contact position, described movable contact spring comprises two horizontally disposed point of movable contact springs, described point of movable contact spring one end is fixedly linked, the upper and lower surface of described two points of movable contact spring other ends is provided with a contact, accordingly, the contact of described upper fixed touching plate lower surface is corresponding with two contact positions of point movable contact spring upper surface, and the contact of described lower fixed touching plate upper surface is corresponding with two contact positions of point movable contact spring lower surface.
The height of the contact of two points of movable contact spring upper surfaces is identical, and on described upper fixed touching plate, two contact heights are identical, and two contact heights on described lower fixed touching plate are identical.
The height of the contact of two points of movable contact spring upper surfaces is not identical, and on described upper fixed touching plate, two contact heights are identical, and two contact heights on described lower fixed touching plate are identical.
The height of the contact of two points of movable contact spring upper surfaces is identical, and on described upper fixed touching plate, two contact heights are not identical, and two contact heights on described lower fixed touching plate are not identical.
Two points of movable contact springs are parallel to each other.
Between two points of movable contact springs, there is angle.
Advantage of the present invention is: increased auxiliary contact, auxiliary contact has been shared the electric current of make-and-break of half, and temperature rise speed is slowed down, and the electric current of make-and-break that relay entirety can bear is original twice, reduced contact loss, the break-make number of times of relay is more than original twice.
Accompanying drawing explanation
Fig. 1 is prior art structure chart;
Fig. 2 is the vertical view of movable contact spring of the present invention;
Wherein: 1-iron core; 2-coil; 3-movable contact spring; 31-divides movable contact spring; 4 upper contacts; 5-lower contact; The upper fixed touching plate of 6-; Fixed touching plate under 7-.
Embodiment
A kind of relay, comprise iron core 1, around coil 2, movable contact spring 3, upper fixed touching plate 6 and lower fixed touching plate 7 on iron core, the upper and lower surface of described movable contact spring 3 is provided with contact, the top of movable contact spring 3 is provided with fixed touching plate 6, the below of movable contact spring 3 is provided with lower fixed touching plate 7, the lower surface of upper fixed touching plate 6 is provided with the upper contact 4 corresponding with movable contact spring 3 upper surface contact positions, and the upper surface of lower fixed touching plate 7 is provided with the lower contact 5 corresponding with movable contact spring 3 lower surface contact positions.
When the contact of two points of movable contact springs 3 contacts with the contact on fixed touching plate, have the successively time difference, this time difference can be the fabrication error of relay self, can be also artificial manufacture.
Two points of movable contact springs 3 are parallel to each other, and the height of the contact of two points of movable contact spring 3 upper surfaces is identical, and two contact heights of upper fixed touching plate 6 are identical, and two contact heights on lower fixed touching plate 7 are identical.Now, be the fabrication error that utilizes relay self, certainly lead to the successively time difference of contact.
Two points of movable contact springs 3 are parallel to each other, and the height of the contact of two points of movable contact spring 3 upper surfaces is identical, and two contact heights of upper fixed touching plate 6 are not identical, two contact height differences on lower fixed touching plate 7.Now, be to utilize the artificial difference in height arranging, generation time is poor.
The height of the contact of two points of movable contact spring 3 upper surfaces is not identical, and 6 two contact heights of described upper fixed touching plate are identical, and two contact heights on lower fixed touching plate 7 are identical.Now, be to utilize the artificial difference in height arranging, generation time is poor.
Can also design and make to have angle between two points of movable contact springs 3, and then produce the successively time difference of contact.
The poor meaning of generation time is, first between two contacts of contact, can produce electric arc, thereby has protected two contacts of rear contact.In like manner, between two contacts that separate afterwards, can produce electric arc, thereby protect first two contacts of contact to extend useful life.
After circuit turn-on, two points of movable contact springs 3 produce the effect of shunting, and making the flow on each tributary is original half, reduce the speed of temperature rise, slow down the loss of contact, reduced caloric value, made more than the break-make number of times of whole relay is increased to original twice.
Claims (6)
1. a relay, comprise movable contact spring, upper fixed touching plate and lower fixed touching plate, the upper and lower surface of described movable contact spring is provided with contact, the top of movable contact spring is provided with fixed touching plate, the below of movable contact spring is provided with lower fixed touching plate, the lower surface of upper fixed touching plate is provided with the upper contact corresponding with movable contact spring upper surface contact position, the upper surface of lower fixed touching plate is provided with the lower contact corresponding with movable contact spring lower surface contact position, it is characterized in that: described movable contact spring comprises two horizontally disposed point of movable contact springs, described point of movable contact spring one end is fixedly linked, the upper and lower surface of described two points of movable contact spring other ends is provided with a contact, accordingly, the contact of described upper fixed touching plate lower surface is corresponding with two contact positions of point movable contact spring upper surface, and the contact of described lower fixed touching plate upper surface is corresponding with two contact positions of point movable contact spring lower surface.
2. relay according to claim 1, is characterized in that: the height of the contact of described two points of movable contact spring upper surfaces is identical, and on described upper fixed touching plate, two contact heights are identical, and two contact heights on described lower fixed touching plate are identical.
3. relay according to claim 1, is characterized in that: the height of the contact of described two points of movable contact spring upper surfaces is not identical, and on described upper fixed touching plate, two contact heights are identical, and two contact heights on described lower fixed touching plate are identical.
4. relay according to claim 1, is characterized in that: the height of the contact of described two points of movable contact spring upper surfaces is identical, and on described upper fixed touching plate, two contact heights are not identical, and two contact heights on described lower fixed touching plate are not identical.
5. relay according to claim 1, is characterized in that: described two points of movable contact springs are parallel to each other.
6. relay according to claim 1, is characterized in that: between described two points of movable contact springs, have angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430582.8A CN103794414A (en) | 2012-10-31 | 2012-10-31 | Relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210430582.8A CN103794414A (en) | 2012-10-31 | 2012-10-31 | Relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103794414A true CN103794414A (en) | 2014-05-14 |
Family
ID=50669975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210430582.8A Withdrawn CN103794414A (en) | 2012-10-31 | 2012-10-31 | Relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103794414A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240993A (en) * | 2014-07-28 | 2014-12-24 | 宁波高新区天都科技有限公司 | Arc extinction method and power extension method for complementary circuit and basic structure of complementary circuit |
| CN104319186A (en) * | 2014-11-17 | 2015-01-28 | 蒋胜泉 | Time sequence relay capable of controlling multiple loads |
| CN105742092A (en) * | 2014-07-28 | 2016-07-06 | 宁波高新区天都科技有限公司 | Complementary circuit arc suppression method and power expansion method and basic complementary circuit structure |
-
2012
- 2012-10-31 CN CN201210430582.8A patent/CN103794414A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240993A (en) * | 2014-07-28 | 2014-12-24 | 宁波高新区天都科技有限公司 | Arc extinction method and power extension method for complementary circuit and basic structure of complementary circuit |
| CN105742092A (en) * | 2014-07-28 | 2016-07-06 | 宁波高新区天都科技有限公司 | Complementary circuit arc suppression method and power expansion method and basic complementary circuit structure |
| CN104319186A (en) * | 2014-11-17 | 2015-01-28 | 蒋胜泉 | Time sequence relay capable of controlling multiple loads |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140514 |