CN208690179U - A kind of electromagnetic relay - Google Patents
A kind of electromagnetic relay Download PDFInfo
- Publication number
- CN208690179U CN208690179U CN201820847009.XU CN201820847009U CN208690179U CN 208690179 U CN208690179 U CN 208690179U CN 201820847009 U CN201820847009 U CN 201820847009U CN 208690179 U CN208690179 U CN 208690179U
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- CN
- China
- Prior art keywords
- contact
- mandril
- spring
- iron core
- graphite
- Prior art date
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Abstract
The utility model discloses a kind of electromagnetic relays, including pedestal, it is arranged on the pedestal cored, strut, movable contact spring and static contact, coil is wound on the iron core, the first mandril and the second mandril are slidably connected on the strut, it further include the first spring and second spring, the movable contact spring is divided into the first contact and the second wafer, the first graphite contact is provided on the second wafer, the first silver contact is provided on first contact, the second graphite contact and the second silver contact matched with first graphite contact and first silver contact is provided on the static contact, first mandril is in contact under the action of first spring at the top of first contact, the distance between first mandril and the iron core meet simultaneously, when the coil is powered, suction of the iron core to first mandril Gravitation is greater than first spring to the active force of first mandril.
Description
Technical field
The utility model relates to a kind of relays.
Background technique
Contact on relay, it is desirable that contact resistance is small, anti-oxidant, therefore generally all uses this material of silver as contact material
Material, silver belongs to noble metal, at high price.Although the contact resistance of silver is small, silver point is relatively low, in the big electricity of some high pressures
The occasion of stream or unavoidable by electric arc burn, burnt degree, bonding easy to form between silver contact, the service life of relay
It can greatly shorten, it is therefore necessary to be improved.
Summary of the invention
The utility model aiming at the shortcomings in the prior art, provides a kind of electromagnetic relay, can be avoided silver-colored touching
Point is contacting and is disconnecting moment by electric arc burn, to extend the service life of relay.
In order to solve the above technical problems, the utility model is addressed by following technical proposals: a kind of electromagnet after
Electric appliance, including pedestal are arranged cored, strut, movable contact spring and static contact on the pedestal, are wound with coil on the iron core,
The first mandril and the second mandril are slidably connected on the strut, further include the first spring and second spring, the movable contact spring point
For the first contact and the second wafer, it is provided with the first graphite contact on the second wafer, is provided on first contact
One silver contact is provided with the second graphite matched with first graphite contact and first silver contact on the static contact
Contact and the second silver contact, first mandril connect under the action of first spring at the top of first contact
Touching, while the distance between first mandril and the iron core meet, when coil energization, the iron core is to described the
The attraction of one mandril is greater than first spring to the active force of first mandril, and second mandril is in second bullet
It is in contact under the action of spring at the top of the second wafer, while the distance between second mandril and iron core meet, when
When the coil is powered, the iron core is less than the second spring to second mandril to the attraction of second mandril
Active force, the first graphite contact on the second wafer under the action of first mandril with the second graphite contact phase
It contacts, the first silver contact on first contact connects under the action of second mandril with second graphite contact
It touches, jacking block is fixed on first mandril, second mandril passes through the jacking block, is additionally provided with one on second mandril
A block, when needing open-circuit line, the coil is powered, and first mandril is gradually moved to the iron core, and at this moment described the
One contact elasticity is restored, and first silver contact and second silver contact separation, first mandril continue towards the iron
Core movement, the jacking block is in contact with the block, and drive second mandril is moved towards the iron core, and at this moment described second
Elastic slice restores, and first graphite contact and second graphite contact separation, then first mandril is first adsorbed onto described
On iron core, then second mandril is adsorbed onto again on the mandril.When being disconnected due to the first silver contact and the second silver contact, line
Road is also on state, so electric arc and spark will not be generated, therefore can damage to avoid silver contact, and then the first graphite touches
Point is with the second graphite contact when separating, and the first graphite contact and the second graphite contact can generate electric arc and spark, but graphite
Characteristic, fusing point is high and not oxidizable, so will not cause to be lost.When needing to connect route, coil losing electricity, the first mandril and
Two mandrils restore position under the action of the first spring and second spring simultaneously, but due to the first mandril and the first elastic slice away from
It is close with a distance from than the second mandril and the second elastic slice, so the first graphite contact and the second graphite contact first contact, followed by
First silver contact and the second silver contact, therefore before the first silver contact and the contact of the second silver contact, route has been turned on, silver contact
It will not be overheated during connecting again.
In above-mentioned technical proposal, specifically, first contact is located at the outer ring of the second wafer.
In above-mentioned technical proposal, specifically, being provided with first baffle on first mandril, it is arranged on second mandril
There is second baffle, the both ends of first spring are in contact with the strut and the first baffle respectively, the second spring
Both ends be in contact respectively with the strut and the second baffle.
The beneficial effects of the utility model are: silver contact will not all generate electric arc during relay switches on and off
And heat, the damage of silver contact is avoided, the service life of relay is substantially prolonged.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is that the first mandril of the utility model is adsorbed onto the schematic diagram during iron core.
Fig. 3 is that the first mandril of the utility model is adsorbed onto the schematic diagram on iron core.
Fig. 4 is that the second mandril of the utility model is adsorbed onto the schematic diagram on iron core.
Fig. 5 is the schematic diagram of movable contact spring.
Fig. 6 is the schematic diagram of static contact.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:
Referring to Fig. 1 to 6, cored 2, strut 3 is arranged on the pedestal 1 in a kind of electromagnetic relay, including pedestal 1,
Movable contact spring 4 and static contact 5.
It is wound with coil 21 on the iron core 2, the first mandril 61 and the second mandril 62 are slidably connected on the strut 3,
It further include the first spring 71 and second spring 72, the movable contact spring 4 divides for the first contact 41 and the second wafer 42, first touching
Piece is located at the outer ring of the second wafer.The first graphite contact 421, first contact are provided on the second wafer 42
It is provided with the first silver contact 411 on 41, is provided on the static contact 5 and first graphite contact 421 and first silver medal
The second graphite contact 51 and the second silver contact 52. that contact 411 matches
First mandril 61 is in contact under the action of the first spring 71 with the top of first contact 41, together
The distance between the first mandril of Shi Suoshu 61 and the iron core 2 meet, and when the coil is powered, the iron core 2 is to described the
The attraction of one mandril 61 is greater than first spring 71 to the active force of first mandril 61.On first contact
One silver contact is in contact under the action of second mandril with second silver contact.
Second mandril 62 is in contact under the action of second spring 72 with the top of the second wafer 42, together
The distance between the second mandril of Shi Suoshu 62 and iron core 2 meet, and when the coil 21 is powered, the iron core 2 is to described second
The attraction of mandril 62 is less than the second spring 72 to the active force of second mandril 62, and first on the second wafer
Graphite contact is in contact under the action of first mandril with second graphite contact, is fixed on first mandril 61
Jacking block 611, second mandril pass through the jacking block, are additionally provided with a block 621 on second mandril 62.
It is provided with first baffle 612 on first mandril 61, is provided with second baffle 622 on second mandril 62,
The both ends of first spring 71 are in contact with the strut and the first baffle respectively, the both ends point of the second spring 72
It is not in contact with the strut and the second baffle.
When needing open-circuit line, the coil is powered, and first mandril is gradually moved to the iron core, and at this moment described the
One contact elasticity is restored, and first silver contact and second silver contact separation, first mandril continue towards the iron
Core movement, the jacking block is in contact with the block, and drive second mandril is moved towards the iron core, and at this moment described second
Elastic slice restores, and first graphite contact and second graphite contact separation, then first mandril is first adsorbed onto described
On iron core, then second mandril is adsorbed onto again on the mandril.When being disconnected due to the first silver contact and the second silver contact, line
Road is also on state, so electric arc and spark will not be generated, therefore can damage to avoid silver contact, and then the first graphite touches
Point is with the second graphite contact when separating, and the first graphite contact and the second graphite contact can generate electric arc and spark, but graphite
Characteristic, fusing point is high and not oxidizable, so will not cause to be lost.When needing to connect route, coil losing electricity, the first mandril and
Two mandrils restore position under the action of the first spring and second spring simultaneously, but due to the first mandril and the first elastic slice away from
It is close with a distance from than the second mandril and the second elastic slice, so the first graphite contact and the second graphite contact first contact, followed by
First silver contact and the second silver contact, therefore before the first silver contact and the contact of the second silver contact, route has been turned on, silver contact
It will not be overheated during connecting again.
Claims (3)
1. a kind of electromagnetic relay, including pedestal, cored, strut, movable contact spring and static contact, institute are set on the pedestal
It states and is wound with coil on iron core, it is characterised in that: slidably connect the first mandril and the second mandril on the strut, further include
One spring and second spring, the movable contact spring are divided into the first contact and the second wafer, the first stone are provided on the second wafer
Black contact is provided with the first silver contact on first contact, be provided on the static contact with first graphite contact and
The second graphite contact and the second silver contact that first silver contact matches, work of first mandril in first spring
With it is lower be in contact at the top of first contact, while the distance between first mandril and the iron core meet, work as institute
When stating coil energization, the iron core is greater than first spring to the work of first mandril to the attraction of first mandril
Firmly, second mandril is in contact under the action of the second spring at the top of the second wafer, while described
The distance between two mandrils and iron core meet, and when the coil is powered, the iron core is small to the attraction of second mandril
In the second spring to the active force of second mandril, the first graphite contact on the second wafer is on first top
It is in contact under the action of bar with second graphite contact, the first silver contact on first contact is in second mandril
Effect is lower to be in contact with second graphite contact, jacking block is fixed on first mandril, second mandril passes through described
Jacking block is additionally provided with a block on second mandril, and when the coil is powered, first mandril is gradually to the iron core
Movement, at this moment the first contact elasticity is restored, first silver contact and second silver contact separation, first mandril
The iron core movement is continued towards, the jacking block is in contact with the block, and second mandril is driven to transport towards the iron core
Dynamic, at this moment the second wafer restores, first graphite contact and second graphite contact separation, then first top
Bar is first adsorbed on the iron core, and then second mandril is adsorbed onto again on the mandril.
2. a kind of electromagnetic relay according to claim 1, it is characterised in that: first contact is located at described the
The outer ring of two contacts.
3. a kind of electromagnetic relay according to claim 1, it is characterised in that: be provided on first mandril
One baffle, is provided with second baffle on second mandril, the both ends of first spring respectively with the strut and described
One baffle is in contact, and the both ends of the second spring are in contact with the strut and the second baffle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820847009.XU CN208690179U (en) | 2018-06-02 | 2018-06-02 | A kind of electromagnetic relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820847009.XU CN208690179U (en) | 2018-06-02 | 2018-06-02 | A kind of electromagnetic relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208690179U true CN208690179U (en) | 2019-04-02 |
Family
ID=65877867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820847009.XU Expired - Fee Related CN208690179U (en) | 2018-06-02 | 2018-06-02 | A kind of electromagnetic relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208690179U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493057A (en) * | 2018-06-02 | 2018-09-04 | 宁波赛特勒电子有限公司 | A kind of electromagnetic relay |
-
2018
- 2018-06-02 CN CN201820847009.XU patent/CN208690179U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493057A (en) * | 2018-06-02 | 2018-09-04 | 宁波赛特勒电子有限公司 | A kind of electromagnetic relay |
| CN108493057B (en) * | 2018-06-02 | 2024-01-16 | 宁波赛特勒电子有限公司 | Novel electromagnetic relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |