CN208352204U - The relay circuit of switchable state - Google Patents
The relay circuit of switchable state Download PDFInfo
- Publication number
- CN208352204U CN208352204U CN201820682267.7U CN201820682267U CN208352204U CN 208352204 U CN208352204 U CN 208352204U CN 201820682267 U CN201820682267 U CN 201820682267U CN 208352204 U CN208352204 U CN 208352204U
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- China
- Prior art keywords
- branch
- controllable switch
- resistance
- electrically connected
- control terminal
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Abstract
The utility model discloses a kind of relay circuits of switchable state, including input time delay circuit, driving circuit, electromagnetic coil, contact switch and several connecting terminals；Several connecting terminals include the first control terminal, the second control terminal, third control terminal, the 4th control terminal, power input, ground terminal and load end；Input time delay circuit includes the first controllable switch, the second controllable switch, third controllable switch, the 4th controllable switch.First capacitor, the second capacitor, third capacitor, first resistor, second resistance and 555 chips；Wherein, first capacitor and the first controllable switch first branch in series, first resistor and the second controllable switch second branch in series, second resistance and third controllable switch third branch in series, the second capacitor and the 4th controllable switch the 4th branch in series；First to fourth branch constitutes the state switching circuit to 555 chip input stages.The utility model has delayed startup and time-delay closing function.
Description
Technical field
The utility model relates to technical field of electronic components, particularly, are related to a kind of relay electricity of switchable state
Road.
Background technique
Relay (English name: relay) is a kind of electric control device, is when the variation of input quantity (energizing quantity) reaches rule
When provisioning request, make controlled volume that a kind of electric appliance of scheduled Spline smoothing occur in electrical output circuit.It has control system
(also known as input circuit) and by the interactive relationship between control system (also known as output loop).It is usually applied to automation control
In circuit, it is actually one kind " automatic switch " that control high current running is gone with low current.Therefore it plays in circuit automatic
The effects of adjusting, safeguard protection, conversion circuit.
And the time relay, refer to after the action signal of (or removing) input is added, output circuit need to be by regulation
Correct time just generate great-jump-forward variation (or contact action) a kind of relay.A kind of use lower voltage or compared with
On the circuit of low current, for switch on or off high voltage, larger current circuit electrical component.At present on the market when
Between relay, mostly it is bulky, it is expensive, it is very not cost-effective for the product of some low costs.
Utility model content
In view of this, the utility model aim is to provide a kind of relay circuit of switchable state, there is delay to open
Dynamic and time-delay closing function.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of relay circuit of switchable state, including input time delay circuit, driving circuit, electromagnetic coil, contact are opened
It closes and several connecting terminals；Several connecting terminals include the first control terminal, the second control terminal, third control terminal, the 4th control terminal,
Power input, ground terminal and load end；The input time delay circuit includes the first controllable switch, the second controllable switch, third
Controllable switch, the 4th controllable switch, first capacitor, the second capacitor, third capacitor, first resistor, second resistance and 555 cores
Piece；Wherein, first capacitor and the first controllable switch first branch in series, first resistor and the second controllable switch are in series
Second branch, second resistance and third controllable switch third branch in series, the second capacitor are connected structure with the 4th controllable switch
At the 4th branch；The first branch is in parallel with second branch, third branch and the 4th branch circuit parallel connection；4 feet, 8 feet of 555 chips are electrically connected
It is connected to power input, 1 foot is electrically connected to ground terminal, and for 5 feet by third capacity earth, 2 feet, 6 feet are electrically connected to first simultaneously
Branch, second branch, third branch, the 4th branch one end, the first branch, second branch the other end to be electrically connected to power supply defeated
Enter end, third branch, the 4th branch the other end be electrically connected to ground terminal；The input terminal of the driving circuit is electrically connected to 555
3 feet of chip, output end are electrically connected to power input after connecting with electromagnetic coil；Contact switch is electrically connected with load end；The
One controllable switch is connect by 3rd resistor with the first control terminal；Second controllable switch is connected by the 4th resistance and the second control terminal
It connects；Third controllable switch is connect by the 5th resistance with third control terminal；4th controllable switch passes through the 6th resistance and the 4th control
End connection processed.
Preferably, the driving circuit includes the first NPN triode and the 7th resistance, the base of first NPN triode
Pole is electrically connected to 3 feet of 555 chips by the 7th resistance, and emitter is electrically connected to ground terminal, and collector is connected with electromagnetic coil
After be electrically connected to power input.
Preferably, the electromagnetic coil inverse parallel has first diode.
The utility model has the technical effect that following aspect: by above technical scheme, by four control terminals,
The delay pattern of changeable relay circuit, i.e. delayed startup or time delayed turn-off.
Detailed description of the invention
Fig. 1 is the circuit diagram of the relay circuit of switchable state in embodiment.
Appended drawing reference: 100, input time delay circuit；200, driving circuit.
Specific embodiment
Below in conjunction with attached drawing, specific embodiment of the present utility model is described in further detail, so that the utility model skill
Art scheme is more readily understood and grasps.
Referring to Fig.1, a kind of relay circuit of switchable state is present embodiments provided, including input time delay circuit 100,
Driving circuit 200, electromagnetic coil KM, contact switch S and several connecting terminals.
Several connecting terminals include the first control terminal P4, the second control terminal P5, third control terminal P6, the 4th control terminal P7,
Power input P1, ground terminal P2 and load end P3.
Input time delay circuit 100 includes the first controllable switch K1, the second controllable switch K2, third controllable switch K3, the 4th
Controllable switch K4, first capacitor C1, the second capacitor C2, third capacitor C3, first resistor R1, second resistance R2 and 555 chips.
Wherein, first capacitor C1 and the first controllable switch K1 first branch in series, first resistor R1 and the second controllable switch K2 go here and there
Connection constitutes second branch, second resistance R2 and third controllable switch K3 third branch in series, and the second capacitor C2 and the 4th can
Control switch K4 the 4th branch in series；The first branch is in parallel with second branch, third branch and the 4th branch circuit parallel connection；First can
Control switch K1 is connect by 3rd resistor R3 with the first control terminal P4；Second controllable switch K2 passes through the control of the 4th resistance R4 and second
P5 connection in end processed；Third controllable switch K3 is connect by the 5th resistance R5 with third control terminal P6；4th controllable switch K4 passes through
6th resistance R6 is connect with the 4th control terminal P7.
In the present embodiment, the first controllable switch K1, the second controllable switch K2, third controllable switch K3, the 4th controllable switch
The electronic switches such as metal-oxide-semiconductor, triode can be used in K4.
Therefore, as the first control terminal P4, third control input effectively control signal, relay is delayed startup at this time
State, when the second control terminal P5, the 4th control terminal P7 input effective control signal, relay is time delayed turn-off shape at this time
State.
4 feet, 8 feet of 555 chips are electrically connected to power input P1, and 1 foot is electrically connected to ground terminal P2, and 5 feet pass through third
Capacitor C3 ground connection, 2 feet, 6 feet simultaneously be electrically connected to the first branch, second branch, third branch, the 4th branch one end, first
Branch, second branch the other end be electrically connected to power input P1, third branch, the 4th branch the other end be electrically connected to and connect
Ground terminal P2；The input terminal of driving circuit 200 is electrically connected to 3 feet of 555 chips, and output end is electrically connected after connecting with electromagnetic coil KM
In power input P1；Contact switch S is electrically connected with load end P3.
Therefore, when relay is in delayed startup state, the voltage of power input P1 input fills first capacitor C1
Electricity, the charging current of formation form high level on second resistance R2, and 555 chips do not trigger；When charging terminates, 555 chips are touched
Hair, 3 feet export the driving signal Vd of high level.
When relay is in time delayed turn-off state, the voltage of power input P1 input charges to the second capacitor C2, and 555
Chip is triggered immediately, and 3 feet export the driving signal Vd of high level, when charging terminates, 555 chip resets.
Driving circuit 200 includes the first NPN triode and the 7th resistance R7, and the base stage of the first NPN triode passes through the 7th
Resistance R7 is electrically connected to 3 feet of 555 chips, and emitter is electrically connected to ground terminal P2, electricity after collector is connected with electromagnetic coil KM
It is connected to power input P1.Therefore, the first NPN triode is connected in the driving signal Vd of high level, and then electromagnetic coil KM
It is powered, contact switch S closing or opening.
In addition, electromagnetic coil KM inverse parallel has first diode, play the role of anti-recoil electric current.
Certainly, the representative instance of above only the utility model, in addition to this, the utility model can also have other a variety of
Specific embodiment, all technical solutions formed using equivalent substitution or equivalent transformation all fall within the requires of the utility model protection
Within the scope of.
Claims (3)
1. a kind of relay circuit of switchable state, characterized in that including input time delay circuit, driving circuit, electromagnetic coil,
Contact switch and several connecting terminals；Several connecting terminals include the first control terminal, the second control terminal, third control terminal, the 4th
Control terminal, power input, ground terminal and load end；The input time delay circuit is controllably opened including the first controllable switch, second
Pass, third controllable switch, the 4th controllable switch, first capacitor, the second capacitor, third capacitor, first resistor, second resistance,
Three resistance, the 4th resistance, the 5th resistance, the 6th resistance and 555 chips；Wherein, first capacitor is connected with the first controllable switch
Constitute the first branch, first resistor and the second controllable switch second branch in series, second resistance and third controllable switch string
Connection constitutes third branch, the second capacitor and the 4th controllable switch the 4th branch in series；The first branch is in parallel with second branch,
Third branch and the 4th branch circuit parallel connection；4 feet, 8 feet of 555 chips are electrically connected to power input, and 1 foot is electrically connected to ground terminal, and 5
Foot by third capacity earth, 2 feet, 6 feet be electrically connected to simultaneously the first branch, second branch, third branch, the 4th branch one
End, the first branch, second branch the other end be electrically connected to power input, third branch, the 4th branch the other end be electrically connected
It is connected to ground terminal；The input terminal of the driving circuit is electrically connected to 3 feet of 555 chips, electricity after output end is connected with electromagnetic coil
It is connected to power input；Contact switch is electrically connected with load end；First controllable switch passes through 3rd resistor and the first control terminal
Connection；Second controllable switch is connect by the 4th resistance with the second control terminal；Third controllable switch passes through the 5th resistance and third
Control terminal connection；4th controllable switch is connect by the 6th resistance with the 4th control terminal.
2. the relay circuit of switchable state as described in claim 1, characterized in that the driving circuit includes first
The base stage of NPN triode and the 7th resistance, first NPN triode is electrically connected to 3 feet of 555 chips by the 7th resistance,
Emitter is electrically connected to ground terminal, and collector is electrically connected to power input after connecting with electromagnetic coil.
3. the relay circuit of switchable state as described in claim 1, characterized in that the electromagnetic coil inverse parallel has
One diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820682267.7U CN208352204U (en) | 2018-05-09 | 2018-05-09 | The relay circuit of switchable state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820682267.7U CN208352204U (en) | 2018-05-09 | 2018-05-09 | The relay circuit of switchable state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208352204U true CN208352204U (en) | 2019-01-08 |
Family
ID=64888738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820682267.7U Expired - Fee Related CN208352204U (en) | 2018-05-09 | 2018-05-09 | The relay circuit of switchable state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208352204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359015A (en) * | 2019-08-06 | 2019-10-22 | 江苏集萃有机光电技术研究所有限公司 | A kind of automatic switch-over circuit, evaporation coating device and vapor deposition control method |
-
2018
- 2018-05-09 CN CN201820682267.7U patent/CN208352204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359015A (en) * | 2019-08-06 | 2019-10-22 | 江苏集萃有机光电技术研究所有限公司 | A kind of automatic switch-over circuit, evaporation coating device and vapor deposition control method |
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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: 20190108 Termination date: 20200509 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |