CN204928356U - Automatic change -over of no electric arc fast switch over - Google Patents
Automatic change -over of no electric arc fast switch over Download PDFInfo
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- CN204928356U CN204928356U CN201520727453.4U CN201520727453U CN204928356U CN 204928356 U CN204928356 U CN 204928356U CN 201520727453 U CN201520727453 U CN 201520727453U CN 204928356 U CN204928356 U CN 204928356U
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- electric arc
- triode thyristor
- bidirectional triode
- automatic change
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Abstract
The utility model provides an automatic change -over of no electric arc fast switch over, including control module and two executable modules, the executable module is including the optoelectronic coupler unit, one -way silicon controlled rectifier drive unit, rectifier unit, the bidirectional thyristor unit that connect gradually, the bidirectional thyristor unit leaves the port that inserts the power, control module connects the opto -coupler unit. The utility model discloses realizing taking and carrying the no arc that opens circuit, the security increases substantially, restraines the conflagration, and switching time is extremely short, effectively protects the power consumption facility, and saved traditional actuating motor, not only the cost is reduced has still promoted the reliability.
Description
Technical field
The utility model belongs to dual power supply switching circuit technical field, especially relates to a kind of automatic change-over switched fast without electric arc.
Background technology
For ensureing industrial production; avoid because electric power system fault causes shutdown, in Large Scale and Continuous manufacture enterprises such as petrochemical industry, oil field, metallurgy, electric power, all adopt duplicate supply fanout operation or " master one is standby " power supply; during to guarantee a road power failure power-off, another road power supply drops into immediately.
Traditional double power acquisition Electric device with a contact mode is connected and point deenergizing, to realize the object of commutation circuit, therefore can produce larger electric arc when electrical equipment point deenergizing.Electric arc can produce serious or even fatal burning to human body, and the electric arc in device for switching can cause short circuit, the ability possibility burning apparatus that moment is huge.And be that extinguish arcs can produce larger cost.Also have time during commutation circuit longer, generally at 1 second.
Summary of the invention
In view of this, the utility model is intended to propose a kind of automatic change-over switched fast without electric arc, carries open circuit without arc, switch fast to realize band.
For achieving the above object, the technical solution of the utility model is achieved in that
A kind of automatic change-over switched fast without electric arc, comprise control module and two Executive Modules, described Executive Module comprises the photoelectrical coupler unit, one-way SCR driver element, rectification unit, the bidirectional triode thyristor unit that connect successively, and described bidirectional triode thyristor unit leaves access power port; Described control module connects optocoupler unit.
Further, described photoelectrical coupler unit comprises photoelectrical coupler, and an input diode in parallel of described photoelectrical coupler, the negative electrode of diode passes through light-emitting diode and a resistance link control module of series connection.
Further, described one-way SCR driver element comprises one-way SCR and connected drive part, and described drive part connects the output of photoelectrical coupler unit.
Further, described rectification unit is bridge rectifier, and the output of described bridge rectifier connects the anode of one-way SCR.
Further, described bidirectional triode thyristor unit comprises bidirectional triode thyristor, the T1 pole of described bidirectional triode thyristor and T2 pole are connected two inputs of bridge rectifier respectively by a resistance, the control pole of described bidirectional triode thyristor connects an input of bridge rectifier, goes back parallel filtering unit between described bidirectional triode thyristor and access power port.
Relative to prior art, the utility model has following advantage:
(1) the utility model realizes band and carries open circuit without arc, and fail safe increases substantially, and suppress fire, switching time is extremely short, available protecting electricity consumption facility; And eliminate traditional actuating motor, not only reduce cost, also improve reliability;
(2) whole circuit design is reasonable, easily realizes, and is easy to promote.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
The overall structure block diagram of automatic change-over of Fig. 1 for switching fast without electric arc described in the utility model embodiment;
Fig. 2 is for stating the circuit theory diagrams of Executive Module described in the utility model embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
A kind of automatic change-over switched fast without electric arc, as shown in Figure 1, 2, comprise control module and two Executive Modules, described Executive Module comprises the photoelectrical coupler unit, one-way SCR driver element, rectification unit, the bidirectional triode thyristor unit that connect successively, and described bidirectional triode thyristor unit leaves the access power port of external power; Described control module connects optocoupler unit.
Concrete connecting circuit is: photoelectrical coupler unit comprises photoelectrical coupler, an input diode in parallel of described photoelectrical coupler, the negative electrode of diode passes through light-emitting diode and a resistance link control module of series connection, and control module comprises central processor CPU;
Described one-way SCR driver element comprises one-way SCR and connected drive part, and described drive part connects the output of photoelectrical coupler;
Described rectification unit is bridge rectifier, and the output of described bridge rectifier connects the anode of one-way SCR;
Described bidirectional triode thyristor unit comprises bidirectional triode thyristor, the T1 pole of described bidirectional triode thyristor and T2 pole are connected two inputs of bridge rectifier respectively by a resistance, the control pole of described bidirectional triode thyristor connects an input of bridge rectifier, goes back parallel filtering unit between described bidirectional triode thyristor and access power port.
Control module described in the utility model realizes the collection of power supply signal, and carry out analysis judgement, if current power supply generation problem detected, carry out electrical source exchange by Executive Module, two described Executive Modules connect load simultaneously, realize connection and the disjunction of load and power supply.Circuit realizes band by controllable silicon and carries open circuit without arc, switching time extremely short (can realize within 0.02 millisecond), available protecting electricity consumption facility.Save traditional actuating motor, not only reduce cost, also improve reliability, fail safe increases substantially, and suppresses fire.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. the automatic change-over switched fast without electric arc, it is characterized in that: comprise control module and two Executive Modules, described Executive Module comprises the photoelectrical coupler unit, one-way SCR driver element, rectification unit, the bidirectional triode thyristor unit that connect successively, and described bidirectional triode thyristor unit leaves the access power port of access external power; Described control module connects optocoupler unit.
2. the automatic change-over switched fast without electric arc according to claim 1, it is characterized in that: photoelectrical coupler unit comprises photoelectrical coupler, an input diode in parallel of described photoelectrical coupler, the negative electrode of diode passes through light-emitting diode and a resistance link control module of series connection.
3. the automatic change-over switched fast without electric arc according to claim 1, is characterized in that: described one-way SCR driver element comprises one-way SCR and connected drive part, and described drive part connects the output of photoelectrical coupler unit.
4. the automatic change-over switched fast without electric arc according to claim 3, is characterized in that: described rectification unit is bridge rectifier, and the output of described bridge rectifier connects the anode of one-way SCR.
5. the automatic change-over switched fast without electric arc according to claim 4, it is characterized in that: described bidirectional triode thyristor unit comprises bidirectional triode thyristor, the T1 pole of described bidirectional triode thyristor and T2 pole are connected two inputs of bridge rectifier respectively by a resistance, the control pole of described bidirectional triode thyristor connects an input of bridge rectifier, goes back parallel filtering unit between described bidirectional triode thyristor and access power port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727453.4U CN204928356U (en) | 2015-09-18 | 2015-09-18 | Automatic change -over of no electric arc fast switch over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520727453.4U CN204928356U (en) | 2015-09-18 | 2015-09-18 | Automatic change -over of no electric arc fast switch over |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928356U true CN204928356U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520727453.4U Active CN204928356U (en) | 2015-09-18 | 2015-09-18 | Automatic change -over of no electric arc fast switch over |
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| CN (1) | CN204928356U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098970A (en) * | 2015-09-18 | 2015-11-25 | 施耐德万高（天津）电气设备有限公司 | Automatic change-over switch for electric-arc-free fast switching |
-
2015
- 2015-09-18 CN CN201520727453.4U patent/CN204928356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105098970A (en) * | 2015-09-18 | 2015-11-25 | 施耐德万高（天津）电气设备有限公司 | Automatic change-over switch for electric-arc-free fast switching |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |