CN105356444A - Circuit structure for supplying power to multiple sensors through the same power source - Google Patents

Circuit structure for supplying power to multiple sensors through the same power source Download PDF

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Publication number
CN105356444A
CN105356444A CN201510888885.8A CN201510888885A CN105356444A CN 105356444 A CN105356444 A CN 105356444A CN 201510888885 A CN201510888885 A CN 201510888885A CN 105356444 A CN105356444 A CN 105356444A
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CN
China
Prior art keywords
power supply
circuit
sensors
self
power source
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.)
Pending
Application number
CN201510888885.8A
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Chinese (zh)
Inventor
孙宏杰
王强
朱立军
沈永春
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CETC 41 Institute
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CETC 41 Institute
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN201510888885.8A priority Critical patent/CN105356444A/en
Publication of CN105356444A publication Critical patent/CN105356444A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a circuit structure for supplying power to multiple sensors through the same power source, and specifically relates to the technical field of power supply of a sensor, for solving the problem of difficult maintenance due to power failure of a sensor, caused by disconnection of a breaker in case of a power source grounding short circuit when any one sensor is damaged by use of a power supply method of multiple sensors through the same power source. The circuit structure for supplying power to the multiple sensors through the same power source comprises a power source, a breaker and multiple sensors, the output end of the power source is connected with multiple power supply circuits, the multiple power supply circuits are connected in series with the same breaker, and the tail end of each power supply circuit is connected with one sensor. The circuit structure is characterized in that each power supply circuit is connected in series with a self-recover fuse unit, each self-recover fuse unit comprises a self-recover fuse, and each self-recover fuse is connected in parallel with a light emitting diode.

Description

The circuit structure of the same Power supply of a kind of multisensor
Technical field
The invention belongs to sensor power technical field, be specifically related to the circuit structure of the same Power supply of a kind of multisensor.
Background technology
In tobacco electronic automatic control system, use a lot of various types of transducer, the requirement of these transducers to power supply is basically identical simultaneously, in the controls by same Power supply, draw from row's binding post, each other without any isolation, as shown in Figure 1.
This method of supplying power to creates a problem in actual use: when any one sensor degradation causes power supply shorted to earth, circuit breaker will be caused to turn off, thus all the sensors all power down, we cannot be judged is actually for which sensor degradation, bring very large difficulty to maintenance, also impact is normal produces.
In order to address this problem, conventional method is on the supply access of each transducer, all increases an insurance.But traditional fuse volume is large, adds fuse holder, takies a large amount of spaces, simultaneously traditional fuse with once, must can only be changed after blowing.
Summary of the invention
The object of the invention is in the same power source supply method of existing multisensor, when any one sensor degradation causes power supply shorted to earth, circuit breaker will be caused to turn off, cause all the sensors power down, and then cause the deficiency of maintenance difficult, propose a kind of by being in series with self-recoverage security unit in power supply circuits, can clearly show the circuit structure of the same Power supply of a kind of multisensor of out of order transducer.
The present invention specifically adopts following technical scheme:
The circuit structure of the same Power supply of a kind of multisensor, comprise power supply, circuit breaker and multiple transducer, the output of described power supply connects multiple power supply circuits, circuit breaker is configured with between power supply and multiple power supply circuits, the end of each described power supply circuits connects a transducer, is serially connected with self-recoverage security unit in each described power supply circuits.
Preferably, described self-recoverage security unit comprises resettable fuse, and described resettable fuse is parallel with light-emitting diode.
The beneficial effect that the present invention has is: self-recoverage security unit is serially connected in the power supply circuits of transducer, and self-recoverage security unit comprises resettable fuse, and resettable fuse is parallel with light-emitting diode.Under normal circumstances, the resistance of resettable fuse is very little, does not affect circuit and normally works, and the state of light-emitting diode is for going out; When short circuit appears in a certain transducer, on circuit, electric current sharply increases, and the temperature on resettable fuse rises rapidly within very short time, and resistance sharply raises thereupon, and just as open circuit, light-emitting diode is lighted, and indicates this road sensor experiences failure; After failture evacuation, the temperature of resettable fuse declines automatically, and returns to low resistive state, and circuit normally works, and the state of light-emitting diode is for going out.The same Power supply of multisensor, when any one sensor degradation, can judge fast and keep in repair the fault causing power supply shorted to earth.
Accompanying drawing explanation
Fig. 1 is traditional multisensor method of supplying power to structural representation;
Fig. 2 is the electrical block diagram of the same Power supply of a kind of multisensor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the specific embodiment of the present invention is described further:
As shown in Figure 2, the circuit structure of the same Power supply of a kind of multisensor, comprise power supply, circuit breaker and multiple transducer, the output of described power supply connects multiple power supply circuits, be configured with circuit breaker between power supply and multiple power supply circuits, the end of each power supply circuits connects a transducer, is serially connected with self-recoverage security unit in each power supply circuits, self-recoverage security unit comprises resettable fuse, and described resettable fuse is parallel with light-emitting diode.
The implementation of the implementation method of the same Power supply of this multisensor is: self-recoverage security unit is serially connected in the power supply circuits of transducer, and self-recoverage security unit comprises resettable fuse, and resettable fuse is parallel with light-emitting diode.Under normal circumstances, the resistance of resettable fuse is very little, does not affect circuit and normally works, and the state of light-emitting diode is for going out; When short circuit appears in a certain transducer, on circuit, electric current sharply increases, and the temperature on resettable fuse rises rapidly within very short time, and resistance sharply raises thereupon, and just as open circuit, light-emitting diode is lighted, and indicates this road sensor experiences failure; After failture evacuation, the temperature of resettable fuse declines automatically, and returns to low resistive state, and circuit normally works, and the state of light-emitting diode is for going out.
Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned citing, and the change that those skilled in the art make in essential scope of the present invention, remodeling, interpolation or replacement also should belong to protection scope of the present invention.

Claims (2)

1. the circuit structure of the same Power supply of multisensor, comprise power supply, circuit breaker and multiple transducer, the output of described power supply connects multiple power supply circuits, circuit breaker is configured with between power supply and multiple power supply circuits, the end of each described power supply circuits connects a transducer, it is characterized in that, in each described power supply circuits, be serially connected with self-recoverage security unit.
2. the circuit structure of the same Power supply of a kind of multisensor as claimed in claim 1, is characterized in that, described self-recoverage security unit comprises resettable fuse, and described resettable fuse is parallel with light-emitting diode.
CN201510888885.8A 2015-12-02 2015-12-02 Circuit structure for supplying power to multiple sensors through the same power source Pending CN105356444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510888885.8A CN105356444A (en) 2015-12-02 2015-12-02 Circuit structure for supplying power to multiple sensors through the same power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510888885.8A CN105356444A (en) 2015-12-02 2015-12-02 Circuit structure for supplying power to multiple sensors through the same power source

Publications (1)

Publication Number Publication Date
CN105356444A true CN105356444A (en) 2016-02-24

Family

ID=55332353

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510888885.8A Pending CN105356444A (en) 2015-12-02 2015-12-02 Circuit structure for supplying power to multiple sensors through the same power source

Country Status (1)

Country Link
CN (1) CN105356444A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2335293Y (en) * 1998-07-31 1999-08-25 宝山钢铁(集团)公司 Self-recovery indicating type protector
US20090257258A1 (en) * 2008-04-11 2009-10-15 Ayukawa Kazuhito Power supply apparatus and semiconductor integrated circuit device
CN201860101U (en) * 2010-11-15 2011-06-08 南京普天鸿雁电器科技有限公司 Lightning-proof converter
CN102122808A (en) * 2010-10-26 2011-07-13 天津泰达环保有限公司 Fault display circuit
CN203941991U (en) * 2014-07-17 2014-11-12 国家电网公司 Batteries intelligence O&M device based on instant inserted and instant using type discharge load
CN204030640U (en) * 2014-05-19 2014-12-17 国家电网公司 Batteries novel maintenance monitoring intelligent device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2335293Y (en) * 1998-07-31 1999-08-25 宝山钢铁(集团)公司 Self-recovery indicating type protector
US20090257258A1 (en) * 2008-04-11 2009-10-15 Ayukawa Kazuhito Power supply apparatus and semiconductor integrated circuit device
CN102122808A (en) * 2010-10-26 2011-07-13 天津泰达环保有限公司 Fault display circuit
CN201860101U (en) * 2010-11-15 2011-06-08 南京普天鸿雁电器科技有限公司 Lightning-proof converter
CN204030640U (en) * 2014-05-19 2014-12-17 国家电网公司 Batteries novel maintenance monitoring intelligent device
CN203941991U (en) * 2014-07-17 2014-11-12 国家电网公司 Batteries intelligence O&M device based on instant inserted and instant using type discharge load

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Application publication date: 20160224

RJ01 Rejection of invention patent application after publication