CN205945678U - Realization awakens module self -sustaining's circuit up - Google Patents
Realization awakens module self -sustaining's circuit up Download PDFInfo
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- CN205945678U CN205945678U CN201620737226.4U CN201620737226U CN205945678U CN 205945678 U CN205945678 U CN 205945678U CN 201620737226 U CN201620737226 U CN 201620737226U CN 205945678 U CN205945678 U CN 205945678U
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- relay
- normally opened
- safety relay
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- opened contact
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Abstract
The utility model relates to a realization awakens module self -sustaining's circuit up, including safety relay SR6, still manage Q3 including the normal close light relay U2, first resistance R1, second resistance R2, the MOS that normally open light relay U1, receive the 2nd control signal DO2 who receives a control signal DO1. This scheme of adoption, disconnection suddenly in the time of can preventing the big current work of relay and cause sparking phenomenon.
Description
【Technical field】
The utility model is related to electronic circuit field, and more particularly, to one kind realizes the self-sustaining circuit of wake module.
【Background technology】
Wake module is the important component part of rail transportation vehicle-mounted signalling arrangement, puts outbound in storage in vehicle driving, vehicle
During play very important effect.Wake module has higher requirements to reliability and self-preservation, needs waking up mould
During block power supply fault, the output of relay dry contact keeps original state, thus ensureing wake module normal work.It is thus desirable to
Reach the output self-sustaining of relay dry contact by the circuit on veneer, to realize wake module normal work.
In prior art, such as Fig. 1, there is scheme one：Outside control signal triggers the optical relay U1 of open type, and light continues
Electrical equipment closure forms the energized circuit of safety relay SR6, the normally opened dry contact of adhesive safety relay, smoothly makes electronic cutting
Close Q1 conducting, then form the loop of 110V output.Meanwhile, system can detect to the state of safety relay SR6, safety
The signal that when relay is not operating, E1 collects is PHI2, and the signal that during safety relay action, E1 collects is PHI1.
In prior art, such as Fig. 2, also there is scheme two：Outside excitation signal triggering latch-in relay, adhesive self-insurance
Hold the normally opened dry contact of relay, so that electronic switch Q2 is turned on, then form the loop of 110V output.When outside is encouraged
Due to the characteristic of latch-in relay after magnetic signal disappearance, remain able to work on, the loop of 110V output still keeps.
The defect of scheme 1 is：Although the output of relay dry contact 110V can be completed, safety can not be realized and continue
The self-sustaining function of electrical equipment.In addition the excitation signal in the program is the voltage of 24V, is not easy in circuit 24V electricity is detected
The fault that reduce off-flavor is often led to.
Scheme 2 operation principle is simple, can smoothly realize wake module by the use of latch-in relay self-sustaining
Function, but program shortcoming is the cost that can improve development equipment with high costs of latch-in relay, is unfavorable for that compression is ground
Send out budget；And the volume of latch-in relay itself is larger to be difficult in compatible ripe veneer up till now, forms a technology
Bottleneck, have to develop the veneer matching and structural member exclusively for it, then also can improve the competitiveness that cost is unfavorable for product.
【Utility model content】
For solving foregoing problems, the utility model proposes realizing the self-sustaining electricity of wake module without latch-in relay
Road.
For reaching object defined above, the utility model adopts the following technical scheme that：Realize the self-sustaining circuit of wake module, bag
Include safety relay it is characterised in that also including receiving the normally opened optical relay of the first control signal, receiving the second control signal
Normally closed optical relay, first resistor, second resistance, metal-oxide-semiconductor；
The first input end of described normally opened optical relay and described normally closed optical relay is connected with negative supply；Described normally opened light
Second output end of relay is connected with first normally opened contact one end of described safety relay, and the of described normally closed optical relay
Two output ends are connected with the first normally opened contact other end of described safety relay, second normally opened contact one end；
The other end of the second normally opened contact of described safety relay is connected with one end of described first resistor, and described first
The other end of resistance is connected with the gate pole of one end of second resistance and metal-oxide-semiconductor, the other end of described second resistance and positive supply and
The source electrode of metal-oxide-semiconductor connects, and the drain electrode of described metal-oxide-semiconductor is connected with one end of the 3rd normally opened contact of safety relay, and the described 3rd
Normally opened contact connects the output end of safety relay；
The 4th normally opened contact one end of safety relay connects back to adopt signal output part and other end connection normal signal is defeated
Enter end, first normally-closed contact one end of safety relay connects back to adopt signal output part and other end connecting fault signal input
End.
First preferred version of the present utility model is：Described negative supply is minus 110 volts.
Second preferred version of the present utility model is：Described positive supply is positive 110 volts.
3rd preferred version of the present utility model is：Described normally opened optical relay and normally closed optical relay are terminated by ground connection
Ground.
The utility model possesses following technique effect：1. realize the self-sustaining of wake module；2. required device is few, cost
Low；3. circuit topology is simple；4. safe：5. prevent from disconnecting suddenly and causing spark phenomenon during the work of relay high current；
6. good reliability.
These features of the present utility model and advantage will be detailed in following specific embodiment, accompanying drawing exposure.
【Brief description】
Below in conjunction with the accompanying drawings the utility model is described further：
Fig. 1 is the circuit theory diagrams of prior art 1.
Fig. 2 is the circuit theory diagrams of prior art 2.
Fig. 3 is the circuit theory diagrams of the utility model embodiment 1.
【Specific embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiment is only preferred embodiment of the present utility model, and not all.Based on the embodiment in embodiment,
Those skilled in the art's obtained other embodiment on the premise of not making creative work, broadly falls into of the present utility model
Protection domain.
Embodiment 1.
Referring to Fig. 1, realize the self-sustaining circuit of wake module, including safety relay SR6, also include receiving the first control
The normally opened optical relay U1 of signal DO1, the normally closed optical relay U2 receiving the second control signal DO2, first resistor R1, the second electricity
Resistance R2, metal-oxide-semiconductor Q3.
The first input end 6 of normally opened optical relay U1 and normally closed optical relay U2 is connected with negative supply；Normally opened optical relay
Second output end 4 of U1 is connected with first normally opened contact P1 one end of safety relay SR6, and the second of normally closed optical relay U2 is defeated
Go out end 4 to be connected with the first normally opened contact P1 other end of safety relay SR6, second normally opened contact P2 one end.
The other end of the second normally opened contact P2 of safety relay SR6 is connected with one end of first resistor R1, first resistor
The other end of R1 is connected with the gate pole of one end of second resistance R2 and metal-oxide-semiconductor, the other end of second resistance R2 and positive supply and MOS
The source electrode of pipe connects, and the drain electrode of metal-oxide-semiconductor is connected with one end of the 3rd normally opened contact P3 of safety relay SR6, and the 3rd is normally opened tactile
Point P3 connects output end OUT of safety relay SR6；
The 4th normally opened contact P4 one end of safety relay SR6 connects back to adopt signal output part E2 and the other end connects normally
First normally-closed contact P5 one end of signal input part PHI1, safety relay SR6 connects back to adopt signal output part E2 and the other end
Connecting fault signal input part PHI2.
Aforementioned negative supply is minus 110 volts.Positive supply is positive 110 volts.Normally opened optical relay and normally closed optical relay pass through to connect
Ground terminal is grounded.
Based on aforementioned circuit, operation principle is as follows：
Normally opened optical relay U1, normally closed optical relay are controlled respectively by the first control signal DO1, the second control signal DO2
The break-make of the normally closed optical relay of U2, and one end of this two optical relays is connected to the negative supply of 110V.First control signal
When DO1 effectively exports, safety relay SR6 formed energized circuit, the first normally opened contact P1 of safety relay, second normally opened touch
Point P2, the 3rd normally opened contact P3, the 4th normally opened contact P4 closure and the first normally-closed contact P5 open, no matter the second control signal
Whether DO2 exports, and the negative supply of 110V connects to resistance one end of metal-oxide-semiconductor Q3, then open metal-oxide-semiconductor Q3, and 110V is formed for
Effective loop.
Because the actuation time of safety relay SR6 is compared, optical relay is long, and the first control signal DO1 does not export afterwards
And second control signal DO2 when do not export, the energized circuit of safety relay SR6 is still effective, and metal-oxide-semiconductor Q3 still beats
Open, 110V is also to form effective loop.When but the first control signal DO1 does not export and DO2 has output, safety relay
All normally opened contacts of device SR6 are opened, and 110V cannot form effective loop.Sum it up, the first control signal DO1 control is aforementioned
The closure of the 3rd normally opened contact P3, the second control signal DO2 controls the shutoff of aforementioned 3rd normally opened contact P3, and high level is effective.
The E2 of in figure is back production signal output part, judges that the state of safety relay SR6 is whether 110V exports.If peace
All relay SR6 is failure to actuate, and what back production signal output part E2 obtained is the fault-signal of fault-signal input PHI2 input；As
Fruit safety relay SR6 action, what back production signal output part E2 obtained is the normal signal of normal signal input PHI1 input.
Because electric current ratio during 110V power work is larger, the moment disconnecting in safety relay can cause showing of sparking
As needing the 3rd normally opened contact P3 front end one metal-oxide-semiconductor of string in safety relay SR6.Because the work of excitation signal, safety
Relay SR6 first picks up, and metal-oxide-semiconductor picks up again；After losing excitation signal, metal-oxide-semiconductor is because reaction speed is faster than safety relay
So first disconnecting, then safety relay SR6 disconnects SR6 again, it is to avoid the phenomenon of sparking produces.Generally according to safety relay
The driving current of the coil L1 of SR6 is less than or equal to 100mA, and the 3rd normally opened contact P3 output rated current 8A carrys out Selection and Design, that is,
The output rated current of output end OUT is 8A.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model does not limit to
In this, it is familiar with this those skilled in the art and should be understood that the utility model includes but is not limited to accompanying drawing and specific embodiment party above
Content described in formula.Any modification without departing from function and structure principle of the present utility model is intended to be included in claims
Scope in.
Claims (4)
1. realize the self-sustaining circuit of wake module, including safety relay it is characterised in that also including receiving the first control letter
Number normally opened optical relay, receive the normally closed optical relay of the second control signal, first resistor, second resistance, metal-oxide-semiconductor；
The first input end of described normally opened optical relay and described normally closed optical relay is connected with negative supply；Described normally opened smooth relay
Second output end of device is connected with first normally opened contact one end of described safety relay, and the second of described normally closed optical relay is defeated
Go out end to be connected with the first normally opened contact other end of described safety relay, second normally opened contact one end；
The other end of the second normally opened contact of described safety relay is connected with one end of described first resistor, described first resistor
The other end be connected with one end of second resistance and the gate pole of metal-oxide-semiconductor, the other end of described second resistance and positive supply and metal-oxide-semiconductor
Source electrode connect, the drain electrode of described metal-oxide-semiconductor is connected with one end of the 3rd normally opened contact of safety relay, and the described 3rd is normally opened tactile
The output end of point connection safety relay；
The 4th normally opened contact one end of safety relay connects back to adopt signal output part and the other end connects normal signal input,
First normally-closed contact one end of safety relay connects back to adopt signal output part and other end connecting fault signal input part.
2. realize the self-sustaining circuit of wake module according to claim 1 it is characterised in that：Described negative supply is minus 110
Volt.
3. realize the self-sustaining circuit of wake module according to claim 1 it is characterised in that：Described positive supply is positive 110
Volt.
4. realize the self-sustaining circuit of wake module according to claim 1 it is characterised in that：Described normally opened optical relay and
Normally closed optical relay is grounded by earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737226.4U CN205945678U (en) | 2016-07-08 | 2016-07-08 | Realization awakens module self -sustaining's circuit up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620737226.4U CN205945678U (en) | 2016-07-08 | 2016-07-08 | Realization awakens module self -sustaining's circuit up |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945678U true CN205945678U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620737226.4U Active CN205945678U (en) | 2016-07-08 | 2016-07-08 | Realization awakens module self -sustaining's circuit up |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067797A (en) * | 2016-07-08 | 2016-11-02 | 浙江众合科技股份有限公司 | Realize the self-sustaining circuit of wake module |
-
2016
- 2016-07-08 CN CN201620737226.4U patent/CN205945678U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106067797A (en) * | 2016-07-08 | 2016-11-02 | 浙江众合科技股份有限公司 | Realize the self-sustaining circuit of wake module |
| CN106067797B (en) * | 2016-07-08 | 2023-06-13 | 浙江众合科技股份有限公司 | Circuit for realizing self-holding of wake-up module |
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| GR01 | Patent grant |