CN104242228A - Safety terminal - Google Patents
Safety terminal Download PDFInfo
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- CN104242228A CN104242228A CN201410432079.5A CN201410432079A CN104242228A CN 104242228 A CN104242228 A CN 104242228A CN 201410432079 A CN201410432079 A CN 201410432079A CN 104242228 A CN104242228 A CN 104242228A
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- fuse
- resistance
- power supply
- fuse terminals
- optical coupler
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Abstract
The invention discloses a safety terminal. The safety terminal comprises a power supply input wiring end (1), a fuse (2), a power supply output wiring end (3) and a monitoring branch connected with the fuse in parallel. The monitoring branch comprises a first resistor (6) and an optical coupler (7), wherein the first resistor (6) and the optical coupler (7) are connected in series. The output end of the optical coupler (7) forms control signal output wiring ends (8 and 9). When the fuse (2) blows out, the power supply input wiring end (1) and the power supply output wiring end (3) are disconnected, current passes through the monitoring branch. An input electric signal drives an LED in the optical coupler (7) so that the LED can emit light with a certain wavelength. An optical detector in the optical coupler (7) receives the light and produces light current, and the light current is further amplified and then output through an electrical output end, so that a control circuit connected with the control signal output wiring ends (8 and 9) is in a breakover state. The monitoring device can remotely monitor the state of the safety terminal.
Description
Technical field
The present invention relates to automatic control technology field, particularly relate to a kind of fuse terminals.
Background technology
Fuse terminals is a kind of conventional electronic security(ELSEC) device, for the protection of electronic equipment, and the big current preventing electronic equipment from causing due to the chance failure in externally fed source and being burnt.Described fuse terminals is connected in the positive pole line of the power input of protected electronic equipment usually.
The composition of common fuse terminals as shown in Figure 1, comprising: power supply input terminal 1, fuse 2, power supply outlet terminal 3, and the instruction branch road in parallel with fuse 2, this instruction branch road comprises current-limiting resistance 4 and light-emitting diode 5.According to Fig. 1, if the external power source being connected to power supply input terminal 1 is normal, fuse 2 will normally work, because the resistance value of fuse 2 is very little, and much smaller than the resistance value of current-limiting resistance 4, can think that electric current is by fuse 2, and the voltage drop produced at fuse 2 two ends is approximately 0, namely the voltage of current-limiting resistance 4 and light-emitting diode 5 both sides is zero, and at this moment Light-Emitting Diode 5 is in OFF state, and namely do not work state.If the external power source being connected to power supply input terminal 1 is abnormal; fuse 2 will fuse; external power source is by comprising the instruction branch road of current-limiting resistance 4 and light-emitting diode 5 and being connected to the protected electronic equipment formation current supply circuit of power supply outlet terminal 3; because the resistance of current-limiting resistance 4 is larger; dividing potential drop and limit circuit electric current; make light-emitting diode 5 be lit, indicating state of fuse simultaneously.
Because the electronic equipment of industry spot is more; administering and maintaining for the ease of scene; fuse terminals focuses mostly on greatly and is positioned in safety cabinet, and this makes protected electronic equipment and protects its fuse terminals usually not in same physical location, and even potential range is far.Due to cannot in other place, as electronic equipment end, obtain the state of fuse terminals in far-end safety cabinet, when electronic equipment cisco unity malfunction, first people need to expend the regular hour removes to check fuse terminals state to the safety cabinet at fuse terminals place, thus reduce the troubleshooting efficiency of electronic equipment.
Summary of the invention
The object of the invention is to: provide a kind of can the fuse terminals of remote monitoring, the state of Real-Time Monitoring fuse terminals, solving blown fuse by the problem of Timeliness coverage, can not reduce fault handling time.
According to embodiments of the invention, provide a kind of fuse terminals, comprise power supply input terminal 1, fuse 2, power supply outlet terminal 3, also comprise the monitoring branch road in parallel with fuse, described monitoring branch road comprises the input series connection of the first resistance 6 and optical coupler 7, first resistance 6 and optical coupler 7; The output formation control signal outlet terminal 8 and 9 of described optical coupler 7.
Preferably, due to the first resistance 6 metering functions, resistance is comparatively large, when electric current passes through, may produce larger heat and damage circuit board or circuit element, therefore can adopt many resistance modes, and being connected by multiple small resistor replaces the first resistance 6 of large resistance.
Further, described fuse terminals also comprises the instruction branch road in parallel with described fuse, and described instruction branch road comprises the second resistance 4 and the light-emitting diode 5 of series connection.
Preferably, described first resistance and the second resistance, all can be composed in series by multiple small resistor.First resistance and the second resistance play metering function, resistance is comparatively large, when electric current passes through, may produce larger heat and damage circuit board or circuit element, therefore many resistance modes can be adopted, the first resistance and second resistance of large resistance is replaced by multiple small resistor series connection.
Further, the above fuse terminals also comprises the monitoring device 10 be connected with control signal outlet terminal 8,9, and described monitoring device 10 comprises detector and sender unit.Described sender unit can be wired and wireless.
A kind of fuse terminals surveillance provided by the invention, comprise fuse terminals described at least more than one and surveillance equipment, described surveillance equipment comprises signal loader and signal processor.Described signal loader can be connected with above-mentioned control signal outlet terminal 8,9, also can be connected with the sender unit of above-mentioned monitoring device 10.Described signal processor can be band screen or CCD device.
From above technical scheme, the present invention compared with the existing technology, solves the problem of remote monitoring fuse terminals fault, the state of fuse terminals is presented in program or picture, facilitates the investigation of fault, saved fault handling time.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 forms schematic diagram at existing fuse terminals.
Fuse terminals embodiment one schematic diagram that Fig. 2 provides for the application.
Fuse terminals embodiment two schematic diagram that Fig. 3 provides for the application.
The fuse terminals embodiment two preferred version schematic diagram that Fig. 4 provides for the application.
Fuse terminals embodiment three schematic diagram that Fig. 5 provides for the application.
The fuse terminals surveillance schematic diagram that Fig. 6 provides for the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, carry out clear, complete description to the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Be described in detail below by the structure and working principle of different embodiment to the fuse terminals in the present invention.
Embodiment 1:
Fig. 2 shows the structural representation of the fuse terminals of the first embodiment in the present invention.As shown in Figure 2, fuse terminals comprises power supply input terminal 1, fuse 2, power supply outlet terminal 3, also comprise the monitoring branch road in parallel with fuse, described monitoring branch road comprises the input series connection of the first resistance 6 and optical coupler 7, first resistance 6 and optical coupler 7; The output formation control signal outlet terminal 8 and 9 of described optical coupler 7.
Preferably, the first resistance plays metering function, and resistance is comparatively large, when electric current passes through, may produce larger heat and damage circuit board or circuit element, therefore also can adopt many resistance modes, and being connected by multiple small resistor replaces the first resistance of large resistance.
Further, above-mentioned fuse terminals can also comprise the monitoring device 10 be connected with control signal outlet terminal 8,9, and described monitoring device 10 comprises detector and sender unit.Described sender unit can be wired and wireless.
When the external power source being connected to power supply input terminal 1 is normal, fuse 2 will normally work, power supply input terminal 1 and power supply outlet terminal 3 line conduction.Due to monitoring branch road being designed with the larger resistance of resistance, electric current is almost nil, and most of electric current goes to on-the-spot power electronic equipment by fuse, and the monitoring of monitoring branch road exports less than signal.When the external power source being connected to power supply input terminal 1 is abnormal, fuse 2 will fuse, and power supply input terminal 1 and power supply outlet terminal 3 line broken circuit, external power source is by comprising the monitoring branch road of the first resistance 6 and optical coupler 7.When there being electric current to pass through monitoring branch road, the signal of telecommunication of input drives the light-emitting diode in photoelectrical coupler 7, make it the light sending certain wavelength, the photo-detector be optically coupled in device 7 receives and produces photoelectric current, exported by electric output after amplifying further again, make the control circuit conducting that control signal outlet terminal 8 is connected with 9, by the signal of this connection, monitoring device 10 or external equipment judge that fuse blows, people's then do not need to expend time in safety cabinet at fuse terminals place goes to check the state of fuse terminals, directly see in program or display unit picture, thus improve the troubleshooting efficiency of electronic equipment, realize the remote monitoring to fuse terminals.
Embodiment 2:
The present embodiment is compared with embodiment 1, and also comprise an instruction branch road in parallel with fuse 2, this indicating circuit comprises the second resistance 4 and the light-emitting diode 5 of series connection.
Fig. 3 shows the structural representation of the fuse terminals of the second embodiment in the present invention.As shown in Figure 3, fuse terminals comprises power supply input terminal 1, fuse 2, power supply outlet terminal 3, also comprise the instruction branch road in parallel with fuse and monitoring branch road, described instruction branch road comprises the second resistance 4 and the light-emitting diode 5 of series connection, described monitoring branch road comprises the input series connection of the first resistance 6 and optical coupler 7, first resistance 6 and optical coupler 7; The output formation control signal outlet terminal 8 and 9 of described optical coupler 7.
When the external power source being connected to power supply input terminal 1 is normal, fuse 2 will normally work, power supply input terminal 1 and power supply outlet terminal 3 line conduction.Due to two other branch road being all designed with large valued resistor, electric current is almost nil, so monitoring branch road can not output signal, the light-emitting diode light of instruction branch road is not luminous yet.When the external power source being connected to power supply input terminal 1 is abnormal, fuse 2 will fuse, and power supply input terminal 1 and power supply outlet terminal 3 line broken circuit, external power source is simultaneously by monitoring branch road and instruction branch road.When there being electric current to pass through instruction branch road, lumination of light emitting diode, indicating state of fuse.This instruction branch road indicates the state of fuse terminals in safety cabinet, can by the timely failure judgement reason of this instruction branch road when people are just at safety cabinet end.When there being electric current to pass through monitoring branch road, people can the state of remote monitoring fuse terminals, and the safety cabinet at the fuse terminals place that do not need to expend time in goes to check.This scheme achieves the dual monitoring to fuse terminals.
Preferably, because the first resistance in the technical program and the second resistance play metering function, resistance is larger, when electric current passes through, larger heat may be produced and damage circuit board or circuit element, therefore also can adopt many resistance modes, replaced the first resistance and second resistance of large resistance by multiple small resistor series connection, Fig. 4 shows the structural representation of this preferred version fuse terminals.
Embodiment 3:
Fig. 5 shows the structural representation of the fuse terminals of the third embodiment in the present invention.As Fig. 5, fuse terminals is on the preferred version basis of embodiment two, and also comprise the monitoring device 10 be connected with control signal outlet terminal 8,9, described monitoring device 10 comprises detector and sender unit.Described sender unit can be wired and wireless.
Embodiment 4:
Fig. 6 shows a kind of fuse terminals surveillance, comprises fuse terminals described at least more than one and surveillance equipment, and described surveillance equipment comprises signal loader and signal processor.Described signal loader can be connected with above-mentioned control signal outlet terminal 8,9, also can be connected with the sender unit of above-mentioned monitoring device 10.Described signal processor can be band screen or CCD device.
Claims (6)
1. a fuse terminals, comprise power supply input terminal (1), fuse (2), power supply outlet terminal (3), it is characterized in that, also comprise the monitoring branch road in parallel with fuse, described monitoring branch road comprises the first resistance (6) and optical coupler (7), the input series connection of the first resistance (6) and optical coupler (7); The output formation control signal outlet terminal (8,9) of described optical coupler (7).
2. fuse terminals according to claim 1, is characterized in that, also comprises the instruction branch road in parallel with described fuse, and described instruction branch road comprises the second resistance (4) and light-emitting diode (5) that are connected in series.
3. fuse terminals according to claim 1 and 2, is characterized in that, described first resistance and described second resistance, be composed in series by multiple small resistor respectively.
4. fuse terminals according to claim 3, is characterized in that, also comprise the monitoring device (10) be connected with control signal outlet terminal (8,9), described monitoring device (10) comprises detector and sender unit.
5. fuse terminals according to claim 1 and 2, it is characterized in that, also comprise the monitoring device (10) be connected with control signal outlet terminal (8,9), described monitoring device (10) comprises detector and sender unit.
6. adopt the fuse terminals surveillance of fuse terminals described in claim 1 to 5 any one claim, it is characterized in that, comprise at least one fuse terminals and surveillance equipment, described surveillance equipment comprises signal loader and signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432079.5A CN104242228A (en) | 2014-08-27 | 2014-08-27 | Safety terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410432079.5A CN104242228A (en) | 2014-08-27 | 2014-08-27 | Safety terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104242228A true CN104242228A (en) | 2014-12-24 |
Family
ID=52229821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410432079.5A Pending CN104242228A (en) | 2014-08-27 | 2014-08-27 | Safety terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104242228A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1169599A (en) * | 1997-08-19 | 1999-03-09 | Toshiba Corp | Fuse cutoff notifying device |
| CN2570967Y (en) * | 2002-09-19 | 2003-09-03 | 万和 | Electric appliance fuse box display unit |
| US20080231410A1 (en) * | 2004-04-20 | 2008-09-25 | Frank Anthony Doljack | RFID Open Fuse Indicator, System, and Method |
| CN203365613U (en) * | 2013-05-07 | 2013-12-25 | 阳光电源（上海）有限公司 | Fuse detection circuit, and combiner box and inverter provided with the circuit |
| CN204068195U (en) * | 2014-08-27 | 2014-12-31 | 山东钢铁股份有限公司 | A kind of fuse terminals and fuse terminals surveillance |
-
2014
- 2014-08-27 CN CN201410432079.5A patent/CN104242228A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1169599A (en) * | 1997-08-19 | 1999-03-09 | Toshiba Corp | Fuse cutoff notifying device |
| CN2570967Y (en) * | 2002-09-19 | 2003-09-03 | 万和 | Electric appliance fuse box display unit |
| US20080231410A1 (en) * | 2004-04-20 | 2008-09-25 | Frank Anthony Doljack | RFID Open Fuse Indicator, System, and Method |
| CN203365613U (en) * | 2013-05-07 | 2013-12-25 | 阳光电源（上海）有限公司 | Fuse detection circuit, and combiner box and inverter provided with the circuit |
| CN204068195U (en) * | 2014-08-27 | 2014-12-31 | 山东钢铁股份有限公司 | A kind of fuse terminals and fuse terminals surveillance |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20141224 |