CN212229125U - Remote signaling detection and alarm circuit for communication direct-current power supply - Google Patents
Remote signaling detection and alarm circuit for communication direct-current power supply Download PDFInfo
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- CN212229125U CN212229125U CN202020661085.9U CN202020661085U CN212229125U CN 212229125 U CN212229125 U CN 212229125U CN 202020661085 U CN202020661085 U CN 202020661085U CN 212229125 U CN212229125 U CN 212229125U
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Abstract
The utility model discloses a be used for communication DC power supply remote signalling to detect and warning circuit, including communication DC power supply, rectification/voltage stabilizing circuit, sampling circuit, opto-coupler device, remote signalling output circuit and warning circuit, communication DC power supply is connected to rectification/voltage stabilizing circuit input, connects opto-coupler device input behind the output series connection sampling circuit, opto-coupler device output lotus root remote signalling output circuit and communication DC power supply, warning circuit connects remote signalling output circuit output. The utility model discloses the cost is extremely low, and remote signalling detection instruction is accurate, safe and reliable, does not produce electromagnetic radiation, the electromagnetic compatibility problem in the solution communication direct current electrical power generating system remote signalling detection that can be perfect.
Description
Technical Field
The utility model relates to a power supply detection technical field, especially one kind is used for communicating the remote signalling of DC power supply and detects and warning circuit.
Background
The communication direct-current power supply is generally divided into a low-voltage direct-current (48V) and a high-voltage direct-current (HVDC) power supply, two common remote signaling detection modes are adopted, one mode is that a temperature fuse is installed on a detection part, when the temperature of the detected part is normal, two ends of the fuse are in a closed state, and if the temperature of the detected part exceeds the temperature required by design, the fuse is fused, two ends of the fuse are disconnected, so that the switching of the remote signaling state is realized. And the other mode adopts a micro switch mode or a relay, and the key of the micro switch and the tripping mechanism are connected with the tripping mechanism and the tripping mechanism adopts low-temperature soldering tin to realize the switching of the remote signaling state.
However, the problem that a remote signaling detection circuit adopts a temperature control switch or a relay in the communication direct-current power supply at present and cannot return to the wall is the problems of reliability and electromagnetic compatibility; the electromagnetic interference generated by switch replacement or relay switching causes great difficulty to the circuit design, so as to solve the problem that the electromagnetic interference increases a plurality of protection devices, the cost is increased, meanwhile, the reliability of the whole circuit is reduced, the false operation is difficult to avoid, and the electromagnetic compatibility is poor.
Therefore, a technical solution to the above problems is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a cost is extremely low, and the telecommand detects that instruct accurate, safe and reliable, not produce electromagnetic radiation, can be perfect solve the electromagnetic compatibility problem that the telecommand detected in the communication direct current power supply system for communication direct current power supply telecommand detects and warning circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a remote signaling detection and alarm circuit for communication DC power supply comprises a communication DC power supply, a rectifying/voltage stabilizing circuit, a sampling circuit, an optocoupler, a remote signaling output circuit and an alarm circuit,
the communication direct current power supply is used for supplying power;
the input end of the rectifying/voltage stabilizing circuit is connected with a communication direct-current power supply, the output end of the rectifying/voltage stabilizing circuit is connected with a sampling circuit in series and then is connected with the input end of an optical coupler device, and the rectifying/voltage stabilizing circuit is used for carrying out current limiting processing and rectifying processing on direct current provided by the communication direct-current power supply when the communication direct-current power supply supplies power, and sending the direct current subjected to the current limiting processing and the rectifying processing to the optical coupler device;
the sampling circuit is connected with the rectifying/voltage stabilizing circuit and the optocoupler in series, receives input voltage rectified by the rectifying/voltage stabilizing circuit and can be switched on or switched off in an acquisition state according to the input voltage;
the output end of the optical coupler device is coupled with a remote signaling output circuit and a communication direct current power supply and is used for receiving direct current sent by the output end of the sampling circuit and forming a loop, when the sampling circuit is well closed in a collecting state, current flows through the output end of the optical coupler device to drive the output end of the optical coupler device, the optical coupler device is conducted, the received direct current is coupled, and a high-level signal is generated and sent to the remote signaling output circuit; when the sampling circuit is in a disconnected acquisition state, the optical coupler device cannot drive the output end of the optical coupler device to be conducted through the input end of the optical coupler device without current, and does not generate a high-level signal to be sent to the remote signaling output circuit;
the control pin of the remote signaling output circuit is connected with the output end of the optical coupler device and is used for receiving the high-level signal generated by the optical coupler device and outputting a remote signaling signal;
the alarm circuit is connected with the output end of the remote signaling output circuit, receives the remote signaling signal and gives an alarm.
As a further improvement of the utility model: the communication direct current power supply is a low-voltage-48V power supply or a high-voltage HVDC power supply.
As a further improvement of the utility model: the alarm circuit is a display lamp, a sound, or a relay switching value and the like.
As a further improvement of the utility model: the input end of the optical coupler is connected to the negative electrode of the communication direct-current power supply through a rectifying/voltage stabilizing circuit, and the output end of the optical coupler is coupled to the positive electrode of the communication direct-current power supply.
As a further improvement of the utility model: the optical coupler device is provided with a light emitting diode, and the current of the optical coupler device flows through the light emitting diode driving the optical coupler device to emit light so as to drive the output end of the optical coupler device to be conducted; the optical coupler device has no current passing through a light emitting diode of the optical coupler device, and the output end of the optical coupler device is not conducted.
A communication direct current power supply comprises the remote signaling detection and alarm circuit for the communication direct current power supply.
The utility model has the advantages of: the utility model discloses the device adopts the opto-coupler device to connect to the negative pole of communication DC power supply through rectification/voltage stabilizing circuit at the input end of opto-coupler in order to realize that the remote signaling detection sampling circuit in the communication DC power supply is completely isolated from the control circuit and does not produce electromagnetic radiation, and then is connected in series with the sampling circuit; when the sampling state of the sampling circuit is closed, microampere current passes through an optical coupler light-emitting driving optical coupler device output end of the optical coupler device to be conducted, and the output end of the optical coupler device is connected with a remote signaling output circuit and an alarm circuit so as to realize remote signaling detection in the communication direct current power supply; when the sampling circuit is in a disconnected state, no current passes through the optical coupler, the output end of the optical coupler is not conducted, the remote signaling output circuit connected with the output end of the optical coupler is in an opposite state, so that remote signaling connection detection and indication are realized, remote signaling state switch signals can be accurately and reliably output, the circuit is extremely low in cost, accurate in indication, safe and reliable and does not generate electromagnetic radiation, and the problem of electromagnetic compatibility in remote signaling detection of a communication direct-current power supply system can be perfectly solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the system comprises a communication direct-current power supply 1, a rectification/voltage-stabilizing circuit 2, a sampling circuit 3, an optical coupler 4, a remote signaling output circuit 5 and an alarm circuit 6.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed embodiments and the specific operation processes are provided, but the protection scope of the present invention is not limited to the present embodiment.
Referring to fig. 1, a remote signaling detection and alarm circuit for a communication dc power supply includes a communication dc power supply 1, a rectifying/voltage stabilizing circuit 2, a sampling circuit 3, an optocoupler 4, a remote signaling output circuit 5, and an alarm circuit 6.
The communication direct current power supply 1 is used for supplying power; the input end of the rectifying/voltage stabilizing circuit 2 is connected with a communication direct-current power supply 1, the output end of the rectifying/voltage stabilizing circuit is connected with a sampling circuit 3 in series and then is connected with the input end of an optical coupler device 4, and the rectifying/voltage stabilizing circuit is used for carrying out current limiting processing and rectifying processing on direct current provided by the communication direct-current power supply 1 when the communication direct-current power supply 1 supplies power and sending the direct current subjected to the current limiting processing and rectifying processing to the optical coupler device 4; the sampling circuit 3 is connected with the rectifying/voltage stabilizing circuit 2 and the optocoupler 4 in series, receives input voltage rectified by the rectifying/voltage stabilizing circuit 2, and can be switched on or switched off in a collecting state according to the input voltage; the output end of the optical coupler device 4 is coupled with a remote signaling output circuit 5 and a communication direct current power supply 1 and is used for receiving direct current sent by the output end of the sampling circuit 3 and forming a loop, when the sampling state of the sampling circuit 3 is well closed, current flows through the output end of the optical coupler device 4 to drive the optical coupler device 4, the optical coupler device 4 is conducted, the received direct current is coupled, and a high-level signal is generated and sent to the remote signaling output circuit 5; when the sampling circuit 3 is in a disconnected acquisition state, the optical coupler 4 cannot drive the output end of the optical coupler 4 to be conducted through the input end of the optical coupler 4 without current, and a high-level signal is not generated and sent to the remote signaling output circuit 5; a control pin of the remote signaling output circuit 5 is connected with the output end of the optical coupler device 4 and is used for receiving a high-level signal generated by the optical coupler device 4 and outputting a remote signaling signal; and the alarm circuit 6 is connected with the output end of the remote signaling output circuit 5, receives the remote signaling signal and gives an alarm.
The first embodiment is as follows:
the utility model discloses innovative remote signalling based on-48V communication DC power supply detects and warning circuit, also can be used for the HVDC behind the voltage stabilizing module in the change circuit, and warning circuit 6 is the display lamp, and sound, or relay switching value etc. and the input of opto-coupler device 4 is received communication DC power supply 1's negative pole (also can be anodal in the positive power supply system) through rectification/voltage stabilizing circuit 2, and communication DC power supply 1's positive pole is received in the output lotus root of opto-coupler device. The optical coupler device 4 is provided with a light emitting diode, and the current of the optical coupler device 4 flows through the light emitting diode driving the optical coupler device 4 to emit light so as to drive the output end of the optical coupler device 4 to be conducted; the optical coupler device 4 has no current passing through the light emitting diode of the optical coupler device 4, and the output end of the optical coupler device 4 is not conducted.
A method for detecting a communication direct-current power supply by utilizing the remote signaling detection and alarm circuit for the communication direct-current power supply comprises the following steps:
setting the two poles of the communication direct-current power supply 1 to which the remote signaling detection and alarm circuit for the communication direct-current power supply is connected;
when the voltage of the communication direct-current power supply 1 changes, a sampling circuit 3 for a communication direct-current power supply remote signaling detection and alarm circuit is well closed, the communication direct-current power supply 1 has microampere-level current output to an optocoupler device 4 after current limiting and rectifying through a rectifying/voltage stabilizing circuit 2, an input end light emitting diode of the optocoupler device 4 is driven by the current to emit light so as to drive the output end of the optocoupler device 4 to be conducted, the received direct current is coupled to generate a high-level signal, the output end of the optocoupler device 4 is connected with a control pin of a remote signaling output circuit 5, the high-level signal is sent to the remote signaling output circuit 4, the remote signaling output circuit 5 receives a signal generated by the optocoupler device 4 and outputs a remote signaling signal to the alarm circuit 6, and the alarm circuit 6 is controlled to send an indication alarm;
when the voltage of the communication direct-current power supply is stable, the sampling circuit 6 for the communication direct-current power supply remote signaling detection and alarm circuit is disconnected, no current passes through the optical coupler device 4, the light emitting diode at the input end of the optical coupler device 4 does not emit light, the output end of the optical coupler device 4 cannot be driven to be conducted, no high-level signal is sent to the remote signaling output circuit 5, no remote signaling signal is output to the alarm circuit 6, the alarm circuit 6 does not give out an alarm, and the remote signaling detection and state indication can be completed by the control pin of the remote signaling output circuit 5 connected with the output end of the optical coupler device 4.
The circuit adopts an optical isolation mode to realize remote signaling detection, can greatly improve reliability and accuracy, has extremely low cost, accurate indication, safety and reliability, does not generate electromagnetic radiation, and can perfectly solve the problem of electromagnetic compatibility in the remote signaling detection of a communication direct-current power supply system.
The second embodiment:
a communication direct current power supply comprises the remote signaling detection and alarm circuit for the communication direct current power supply.
Various corresponding changes and modifications can be made by those skilled in the art according to the above technical solutions and concepts, and all such changes and modifications should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a be used for communication DC power remote signalling to detect and warning circuit which characterized in that: comprises a communication direct current power supply, a rectifying/voltage stabilizing circuit, a sampling circuit, an optical coupler device, a remote signaling output circuit and an alarm circuit, wherein,
the communication direct current power supply is used for supplying power;
the input end of the rectifying/voltage stabilizing circuit is connected with a communication direct-current power supply, the output end of the rectifying/voltage stabilizing circuit is connected with a sampling circuit in series and then is connected with the input end of an optical coupler device, and the rectifying/voltage stabilizing circuit is used for carrying out current limiting processing and rectifying processing on direct current provided by the communication direct-current power supply when the communication direct-current power supply supplies power, and sending the direct current subjected to the current limiting processing and the rectifying processing to the optical coupler device;
the sampling circuit is connected with the rectifying/voltage stabilizing circuit and the optocoupler in series, receives input voltage rectified by the rectifying/voltage stabilizing circuit and can be switched on or switched off in an acquisition state according to the input voltage;
the output end of the optical coupler device is coupled with a remote signaling output circuit and a communication direct current power supply and is used for receiving direct current sent by the output end of the sampling circuit and forming a loop, when the sampling circuit is well closed in a collecting state, current flows through the output end of the optical coupler device to drive the optical coupler device to be conducted, the received direct current is coupled, and a high-level signal is generated and sent to the remote signaling output circuit; when the sampling circuit is in a disconnected acquisition state, the optical coupler device cannot drive the output end of the optical coupler device to be conducted through the input end of the optical coupler device without current, and does not generate a high-level signal to be sent to the remote signaling output circuit;
the control pin of the remote signaling output circuit is connected with the output end of the optical coupler device and is used for receiving the high-level signal generated by the optical coupler device and outputting a remote signaling signal;
the alarm circuit is connected with the output end of the remote signaling output circuit, receives the remote signaling signal and gives an alarm.
2. The circuit of claim 1 for communicating a remote signaling detection and alarm of a dc power source, wherein: the communication direct current power supply is a low-voltage-48V power supply or a high-voltage HVDC power supply.
3. The circuit of claim 1 for communicating a remote signaling detection and alarm of a dc power source, wherein: the alarm circuit is a display lamp, a sound, or a relay switching value and the like.
4. The circuit of claim 1 for communicating a remote signaling detection and alarm of a dc power source, wherein: the input end of the optical coupler is connected to the negative electrode of the communication direct-current power supply through a rectifying/voltage stabilizing circuit, and the output end of the optical coupler is coupled to the positive electrode of the communication direct-current power supply.
5. The circuit of claim 1 for communicating a remote signaling detection and alarm of a dc power source, wherein: the optical coupler device is provided with a light emitting diode, and the current of the optical coupler device flows through the light emitting diode driving the optical coupler device to emit light so as to drive the output end of the optical coupler device to be conducted; the optical coupler device has no current passing through a light emitting diode of the optical coupler device, and the output end of the optical coupler device is not conducted.
6. A communication dc power supply, comprising: comprising a telecommand detection and alarm circuit for a communication dc power supply according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661085.9U CN212229125U (en) | 2020-04-26 | 2020-04-26 | Remote signaling detection and alarm circuit for communication direct-current power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661085.9U CN212229125U (en) | 2020-04-26 | 2020-04-26 | Remote signaling detection and alarm circuit for communication direct-current power supply |
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| Publication Number | Publication Date |
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| CN212229125U true CN212229125U (en) | 2020-12-25 |
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| CN202020661085.9U Active CN212229125U (en) | 2020-04-26 | 2020-04-26 | Remote signaling detection and alarm circuit for communication direct-current power supply |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province Patentee after: Guangdong Gould Group Co.,Ltd. Address before: 512300 No.1 industrial transfer park, Lelang Road, Lechang City, Shaoguan City, Guangdong Province Patentee before: SHAOGUAN GAOERDE LIGHTNING PROTECTION TECHNOLOGY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Remote Signal Detection and Alarm Circuit for DC Power Supply Communication Effective date of registration: 20221109 Granted publication date: 20201225 Pledgee: Lechang Sub branch of Agricultural Bank of China Ltd. Pledgor: Guangdong Gould Group Co.,Ltd. Registration number: Y2022980021102 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |