CN205564642U - Relay low pressure control circuit - Google Patents
Relay low pressure control circuit Download PDFInfo
- Publication number
- CN205564642U CN205564642U CN201620328715.4U CN201620328715U CN205564642U CN 205564642 U CN205564642 U CN 205564642U CN 201620328715 U CN201620328715 U CN 201620328715U CN 205564642 U CN205564642 U CN 205564642U
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- relay
- resistance
- switch
- connects
- contact
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- Expired - Fee Related
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Abstract
The utility model discloses a relay low pressure control circuit, including switch S1, relay K, triode V2 and resistance R4, connect VCC and relay K's contact K of switch S1's one end 1, switch S1's other end linked switch S2 and relay K's contact K 1 the other end, unidirectional thyristor Q1's positive pole and relay K's contact K are connected to switch S2's the other end 2, relay K's contact K 2 other end connecting resistance R1, resistance R2 and resistance R4, relay K is connected to unidirectional thyristor Q1's negative pole. The utility model discloses relay low pressure control circuit simple structure, components and parts are few, utilize simple electronic component to constitute relaxation oscillator, combine the charge and discharge of capacitor principle to make to add and to be higher than mains voltage at relay both ends voltage, and then reach the purpose of low voltage driving relay, convenient use under the low pressure environment.
Description
Technical field
This utility model relates to a kind of control circuit, specifically a kind of relay low-voltage control circuit.
Background technology
Relay is a kind of electric control device, is when the change of input quantity (energizing quantity) reaches regulation requirement, makes controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in electric output circuit.It has control system (also known as input circuit) and by the interactive relationship between control system (also known as output loop).Being commonly used in the control circuit of automatization, it actually goes to control the one " switch automatically " of big electric current running with small area analysis.Therefore play in circuit be automatically adjusted, safeguard protection, the effect such as change-over circuit.It is known that relay coil energising job demand reaches certain rated voltage, but for some special occasions, supply voltage is not sufficient to drive relay, therefore hinders it and normally uses.
Utility model content
The purpose of this utility model is to provide a kind of relay low-voltage control circuit, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of relay low-voltage control circuit，Including switch S1、Relay K、Audion V2 and resistance R4，One end of described switch S1 connects power supply VCC and the contact K-1 of relay K，The other end connecting valve S2 of switch S1 and the other end of the contact K-1 of relay K，The other end of switch S2 connects anode and the contact K-2 of relay K of unidirectional thyristor Q1，The other end of the contact K-2 of relay K connects resistance R1、Resistance R2 and resistance R4，The negative electrode of unidirectional thyristor Q1 connects relay K，The control pole of unidirectional thyristor Q1 connects electric capacity C3，The other end of electric capacity C3 connects the negative electrode of diode D1，The anode of diode D1 connects resistance R3、The base stage of audion V2 and second base stage of double base diode V1，The colelctor electrode of audion V2 connects electric capacity C2 and the other end of resistance R4，The other end of electric capacity C2 connects electric capacity C1、Resistance R3、The other end of relay K and the emitter stage of audion V2，First base stage of double base diode V1 connects the other end of resistance R2，The other end of resistance R1 connects emitter stage and the other end of electric capacity C1 of double base diode V1.
As preferred version of the present utility model: described switch S1 and switch S2 is key switch.
Compared with prior art, the beneficial effects of the utility model are: this utility model relay low-voltage control circuit simple in construction, components and parts are few, simple electronic component is utilized to form relaxor, in conjunction with capacitor charge and discharge principle, so that be added in relay both end voltage higher than supply voltage, and then reach the purpose of low-voltage driving relay, convenient use under lower pressure environment.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of relay low-voltage control circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，A kind of relay low-voltage control circuit，Including switch S1、Relay K、Audion V2 and resistance R4，One end of described switch S1 connects power supply VCC and the contact K-1 of relay K，The other end connecting valve S2 of switch S1 and the other end of the contact K-1 of relay K，The other end of switch S2 connects anode and the contact K-2 of relay K of unidirectional thyristor Q1，The other end of the contact K-2 of relay K connects resistance R1、Resistance R2 and resistance R4，The negative electrode of unidirectional thyristor Q1 connects relay K，The control pole of unidirectional thyristor Q1 connects electric capacity C3，The other end of electric capacity C3 connects the negative electrode of diode D1，The anode of diode D1 connects resistance R3、The base stage of audion V2 and second base stage of double base diode V1，The colelctor electrode of audion V2 connects electric capacity C2 and the other end of resistance R4，The other end of electric capacity C2 connects electric capacity C1、Resistance R3、The other end of relay K and the emitter stage of audion V2，First base stage of double base diode V1 connects the other end of resistance R2，The other end of resistance R1 connects emitter stage and the other end of electric capacity C1 of double base diode V1.
Switch S1 and switch S2 is key switch.
Operation principle of the present utility model is: double base diode V1 Yu R1, R2, R3 and C1 in circuit form a relaxation formula agitator, Q1 is unidirectional thyristor, after pressing start button S1, power on circuitry, because Q1 is without trigger voltage, so being not turned on, relay K is failure to actuate, and power supply is charged to rapidly close to supply voltage to electric capacity C2 by R4.Meanwhile, power supply charges to electric capacity C1 through R1.After several seconds, the upper voltage of C1 is charged to the trigger voltage of V1, and C1 is discharged by V1 immediately, forms a positive pulse on R3, and this pulse one tunnel is added to V2 base stage, makes the rapid saturation conduction of V2, V2 colelctor electrode namely electric capacity C2 positive pole be bordering on ground connection.Owing to being filled with upper just lower negative positive polarity voltage on now C2, so C2 negative pole namely K coil one end are nagative potential.Another road of positive pulse on R3 is gone to trigger turn on thyristors through D1, C3, and Q1 negative electrode namely the relay K other end are close to supply voltage.At this moment, relay K actually bears the supply voltage of about twice, thus K-1 Guan Bi, after unclamping S1, K-1 self-insurance.V1, V2 are powered cut-out by K-2, and relay is working under supply voltage.S2 is stop button, presses the release of S2, K dead electricity, and K-1 disconnects, whole control circuit dead electricity.
Claims (2)
- null1. a relay low-voltage control circuit，Including switch S1、Relay K、Audion V2 and resistance R4，It is characterized in that，One end of described switch S1 connects power supply VCC and the contact K-1 of relay K，The other end connecting valve S2 of switch S1 and the other end of the contact K-1 of relay K，The other end of switch S2 connects anode and the contact K-2 of relay K of unidirectional thyristor Q1，The other end of the contact K-2 of relay K connects resistance R1、Resistance R2 and resistance R4，The negative electrode of unidirectional thyristor Q1 connects relay K，The control pole of unidirectional thyristor Q1 connects electric capacity C3，The other end of electric capacity C3 connects the negative electrode of diode D1，The anode of diode D1 connects resistance R3、The base stage of audion V2 and second base stage of double base diode V1，The colelctor electrode of audion V2 connects electric capacity C2 and the other end of resistance R4，The other end of electric capacity C2 connects electric capacity C1、Resistance R3、The other end of relay K and the emitter stage of audion V2，First base stage of double base diode V1 connects the other end of resistance R2，The other end of resistance R1 connects emitter stage and the other end of electric capacity C1 of double base diode V1.
- A kind of relay low-voltage control circuit the most according to claim 1, it is characterised in that described switch S1 and switch S2 is key switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328715.4U CN205564642U (en) | 2016-04-18 | 2016-04-18 | Relay low pressure control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620328715.4U CN205564642U (en) | 2016-04-18 | 2016-04-18 | Relay low pressure control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205564642U true CN205564642U (en) | 2016-09-07 |
Family
ID=56809745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620328715.4U Expired - Fee Related CN205564642U (en) | 2016-04-18 | 2016-04-18 | Relay low pressure control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205564642U (en) |
-
2016
- 2016-04-18 CN CN201620328715.4U patent/CN205564642U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cai Chunxiang Inventor before: Li Jun |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170113 Address after: Room 106, room 04, building, science and Technology Park, Strait, Nanjing, Jianye City, Jiangsu Province, No. 98 Gate Road, No. 2, Patentee after: Nanjing wisdom Electric Technology Co., Ltd. Address before: 315700 Ningbo, Xiangshan Province Economic Development Zone, Park Road, No. 98 Patentee before: Xiangshan Al Wouter Intelligent Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 Termination date: 20170418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |