CN2588516Y - Relay - Google Patents
Relay Download PDFInfo
- Publication number
- CN2588516Y CN2588516Y CN 02277903 CN02277903U CN2588516Y CN 2588516 Y CN2588516 Y CN 2588516Y CN 02277903 CN02277903 CN 02277903 CN 02277903 U CN02277903 U CN 02277903U CN 2588516 Y CN2588516 Y CN 2588516Y
- Authority
- CN
- China
- Prior art keywords
- relay
- coil
- closed contact
- voltage
- voltage drop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Relay Circuits (AREA)
Abstract
The utility model discloses a relay. The relay comprises a coil and a normally closed contact, wherein, the coil is connected in series with the normally closed contact; both ends of the normally closed contact are connected in parallel with a dropping element for voltage drop, so that the attracted voltage drop of the coil of the relay is kept, the generated heat is reduced, the service life of the relay is prolonged, and the releasing response can be more rapid at the same time.
Description
Technical field:
The utility model relates to a kind of relay.
Technical background:
To be in power required under the attracting state different for required power and relay when present relay coil adhesive action produced, the power that the adhesive action requires when producing will be higher than the power that has been under the attracting state, like this for guaranteeing the adhesive action, pick-up voltage is higher, and be at coil that its voltage also equals pick-up voltage under the attracting state, thereby made the electric energy of consumption more, and coil is warmmer, life-span is shorter, and it is slower that relay discharges response simultaneously.
The utility model content:
At the prior art above shortcomings, the utility model provides a kind of long service life, highly sensitive relay.
The utility model comprises coil, normally-closed contact, and coil is connected with normally-closed contact, the two ends parallel connection of normally-closed contact be used for the voltage drop element of step-down.
1/2 resistance value of the resistance value≤coil of described voltage drop element.
Described voltage drop element is resistance or inductance.
Adopt the technical program, when relay produces the adhesive action, because the existence of normally-closed contact in the relay, relay coil obtains normally adhesive of pick-up voltage, after the adhesive, because the dividing potential drop of resistance or inductance makes the voltage the when voltage of relay coil is lower than generation adhesive action at this moment, select suitable resistance value or inductance value, the voltage of relay coil is remained on keep the adhesive required voltage.Coil keeps the voltage of adhesive to reduce like this, and the heat of generation reduces, and has prolonged the useful life of relay, and it is faster to discharge response simultaneously,
Description of drawings:
Fig. 1 is an electrical schematic of the present utility model.
Embodiment:
As can be seen from Figure 1, the normally-closed contact 2 of relay is connected with the coil 1 of relay, and when relay produced the adhesive action, it is electric that electric current gets coil 1 by normally-closed contact 2, and its voltage is pick-up voltage V
AdhesiveAfter the adhesive, normally-closed contact 2 disconnects, electric current maintains relay coil by the voltage drop element 3 that is used for step-down, this moment is because the dividing potential drop effect of voltage drop element 3, voltage when the voltage of relay coil being lower than produce the adhesive action is selected 1/2 resistance value of the resistance value≤coil of voltage drop element 3, makes the voltage V of relay coil
Keep≈ (2/3) V
Adhesive, remain on and keep in the adhesive required voltage scope, what voltage drop element 3 adopted in the present embodiment is resistance, also can adopt inductance certainly, can prolong the useful life of relay so effectively, and it is faster to discharge the existing relay of response ratio.
Claims (3)
1. a relay comprises coil (1), normally-closed contact (2), it is characterized in that: coil (1) is connected with normally-closed contact (2), the two ends parallel connection of normally-closed contact (2) be used for the voltage drop element (3) of step-down.
2. relay according to claim 1 is characterized in that: 1/2 resistance value of the resistance value≤coil (1) of voltage drop element (3).
3. relay according to claim 1 and 2 is characterized in that: voltage drop element (3) is resistance or inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02277903 CN2588516Y (en) | 2002-12-18 | 2002-12-18 | Relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02277903 CN2588516Y (en) | 2002-12-18 | 2002-12-18 | Relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2588516Y true CN2588516Y (en) | 2003-11-26 |
Family
ID=33741375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02277903 Expired - Fee Related CN2588516Y (en) | 2002-12-18 | 2002-12-18 | Relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2588516Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097356A (en) * | 2015-07-01 | 2015-11-25 | 华为技术有限公司 | Control method and device |
| CN106151325A (en) * | 2016-08-19 | 2016-11-23 | 广西柳工机械股份有限公司 | Hydraulic braking solenoid valve protector |
-
2002
- 2002-12-18 CN CN 02277903 patent/CN2588516Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097356A (en) * | 2015-07-01 | 2015-11-25 | 华为技术有限公司 | Control method and device |
| CN106151325A (en) * | 2016-08-19 | 2016-11-23 | 广西柳工机械股份有限公司 | Hydraulic braking solenoid valve protector |
| CN106151325B (en) * | 2016-08-19 | 2019-07-30 | 广西柳工机械股份有限公司 | Hydraulic braking solenoid valve protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |