CN204559097U - AC/DC universal device for under-voltage releasing equipment - Google Patents
AC/DC universal device for under-voltage releasing equipment Download PDFInfo
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- CN204559097U CN204559097U CN201520311055.4U CN201520311055U CN204559097U CN 204559097 U CN204559097 U CN 204559097U CN 201520311055 U CN201520311055 U CN 201520311055U CN 204559097 U CN204559097 U CN 204559097U
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Abstract
The utility model discloses and a kind of there is higher safety and stability AC/DC universal device for under-voltage releasing equipment.Comprise Switching Power Supply, coil, rectification module, also comprise: sampling module, break-make control module, described Switching Power Supply provides stabilized voltage power supply for described break-make control module and described coil, described sampling module comprises optocoupler, the input of described optocoupler is connected with the output of described rectification module, described break-make control module comprises metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor and drain electrode and described Switching Power Supply, described coil tandem, the grid of described metal-oxide-semiconductor is connected with the output of described optocoupler, when the magnitude of voltage that described sampling module exports is greater than setting voltage value, described metal-oxide-semiconductor conducting, described Switching Power Supply, described coil, described metal-oxide-semiconductor forms series loop, described coil obtains electric, when the magnitude of voltage that described sampling module exports is less than setting voltage value, described metal-oxide-semiconductor cut-off, described coil losing electricity.
Description
Technical field
the utility model relates to a kind of AC/DC universal device for under-voltage releasing equipment.
Background technology
device for under-voltage releasing equipment is one of critical elements of circuit breaker.Device for under-voltage releasing equipment is when its terminal voltage drops to a certain prescribed limit, makes a kind of release that circuit breaker has time delay or disconnects without time delay.When supply voltage declines, even drop in 70% to 35% scope of rated operational voltage, device for under-voltage releasing equipment should operate, device for under-voltage releasing equipment is when supply voltage equals 35% of release rated operational voltage, device for under-voltage releasing equipment should be able to prevent breaker closing, trip coil dead electricity, the moving armature in coil is released, and makes circuit breaker be in trip status.The effect of device for under-voltage releasing equipment be prevent subordinate's electric equipment under under-voltage condition because electric current is much the effective measures of self-heating.Therefore, device for under-voltage releasing equipment itself should have good fail safe and stability.Be commercially now substantially all AC undervoltage release, direct current undervoltage release is fewer, and the coil-winding of AC undervoltage release is difficult.
Summary of the invention
for the problems referred to above, the purpose of this utility model is to provide a kind of AC/DC universal under-voltage release with higher safety and stability.
for solving the problems of the technologies described above, the utility model adopts following technical scheme:
a kind of AC/DC universal device for under-voltage releasing equipment, comprise Switching Power Supply, coil, for being converted into galvanic rectification module when outer net is alternating current, also comprise: for obtaining the sampling module of described rectification module output voltage, break-make control module that is electric and dead electricity is obtained for controlling described coil, described Switching Power Supply provides stabilized voltage power supply for described break-make control module and described coil, described sampling module comprises optocoupler, the input of described optocoupler is connected with the output of described rectification module, described break-make control module comprises metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor and drain electrode and described Switching Power Supply, described coil tandem, the grid of described metal-oxide-semiconductor is connected with the output of described optocoupler, when the magnitude of voltage that described sampling module exports is greater than setting voltage value, described metal-oxide-semiconductor conducting, described Switching Power Supply, described coil, described metal-oxide-semiconductor forms series loop, described coil obtains electric, when the magnitude of voltage that described sampling module exports is less than setting voltage value, described metal-oxide-semiconductor cut-off, described coil losing electricity.
preferably, described coil tandem is between the positive pole and the drain electrode of described metal-oxide-semiconductor of described Switching Power Supply.
preferably, the grid of described metal-oxide-semiconductor, source electrode and described optocoupler and described Switching Power Supply serial connection.
preferably, this device for under-voltage releasing equipment comprises surge absoption and immunity module, the input of described surge absoption and immunity module is connected with outer net and output is connected with the input of described rectification module, and described surge absoption and immunity module comprise the piezo-resistance and the first electric capacity that are in parallel.
more preferably, described rectification module comprises the bridge rectifier and the second electric capacity that are in parallel, and the input of described bridge rectifier is connected with the output of described surge absoption and immunity module.
preferably, described sampling module also comprises the second resistance, the first resistance, and described optocoupler is connected in series described first resistance and described rectification module with after described second resistor coupled in parallel.
preferably, the resistance value of described coil is 300 ~ 2000 Ω.
preferably, the rated voltage of described outer net is the alternating voltage of below 230V or the direct voltage of below 320V.
the utility model adopts above structure, tool has the following advantages compared to existing technology: by being connected with the grid of metal-oxide-semiconductor by the output of optocoupler, and the drain electrode of metal-oxide-semiconductor, source electrode are connected with Switching Power Supply, coil respectively, optocoupler control the break-make of metal-oxide-semiconductor come control coil electric and dead electricity, realize adhesive and the release of armature, safety and stability greatly improves.
Accompanying drawing explanation
fig. 1 is the circuit theory schematic diagram of device for under-voltage releasing equipment of the present utility model.
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, can be easier to make advantage of the present utility model and feature be understood by those skilled in the art.
figure 1 shows that a kind of AC/DC universal device for under-voltage releasing equipment of the present utility model.Shown in composition graphs 1, it comprises surge absoption and immunity module, rectification module, sampling module, break-make control module, Switching Power Supply and coil L.This AC/DC universal device for under-voltage releasing equipment is used in the AC network of below 230V or the direct current network of below 320V.
the input of surge absoption and immunity module is connected with outer net and output is connected with the input of rectification module, surge absoption and immunity module comprise the piezo-resistance RV1 and the first electric capacity C1 that are in parallel, and piezo-resistance RV1, the first electric capacity C1 are in parallel with outer net respectively.
rectification module, for being converted into direct current when outer net is alternating current.The input that rectification module comprises bridge rectifier BR1 and the second electric capacity C2, the bridge rectifier BR1 be in parallel is connected with the output of described surge absoption and immunity module.
sampling module, for obtaining rectification module output voltage.Sampling module comprises optocoupler IC1, and the input of optocoupler IC1 is connected with the output of rectification module.Particularly, the sampling module input that also comprises the first resistance R1 and the second resistance R2, optocoupler IC1 and the second resistance R2 parallel connection are connected in series the output of the first resistance R1 and rectification module afterwards.By regulating the resistance value of the first resistance R1 and the second resistance R2, the output voltage of optocoupler IC1 can be regulated, and then the drop away voltage of device for under-voltage releasing equipment can be regulated.
break-make control module, obtains electric and dead electricity for control coil L.Break-make control module comprises metal-oxide-semiconductor Q1.The output of the grid of metal-oxide-semiconductor Q1, source electrode and optocoupler IC1 and Switching Power Supply serial connection, the source electrode of metal-oxide-semiconductor Q1, drain electrode and coil L and Switching Power Supply serial connection, between the drain electrode that coil L is serially connected in metal-oxide-semiconductor Q1 and the positive pole of Switching Power Supply.Switching Power Supply provides stabilized voltage power supply for coil L.
the resistance value of coil L is 300 ~ 2000 Ω, by the output voltage of by-pass cock power supply, can the voltage of regulating winding L, and make the resistors match of itself and coil, guarantee that there are stable operating voltage and less heating in coil two ends before dropout.
when the magnitude of voltage that sampling module exports is greater than setting voltage value, metal-oxide-semiconductor Q1 conducting, Switching Power Supply, coil L, metal-oxide-semiconductor Q1 form series loop, and coil L obtains electric, and the armature matched with coil L is by adhesive, and circuit breaker can normal divide-shut brake.When the magnitude of voltage that sampling module exports is less than setting voltage value, metal-oxide-semiconductor Q1 ends, and coil L dead electricity, armature is released, and circuit breaker is in trip status.
by the grid of the output of optocoupler IC1 with metal-oxide-semiconductor Q1 is connected, and the drain electrode of metal-oxide-semiconductor Q1, source electrode are connected with Switching Power Supply, coil L respectively, the break-make that optocoupler IC1 controls metal-oxide-semiconductor Q1 come control coil L electric and dead electricity, realize adhesive and the release of armature, isolate before and after circuit, safety and stability greatly improves; The output power of circuit of this device for under-voltage releasing equipment is greater than 3W, and coil winding is convenient, flexible.
above-described embodiment is only for illustrating technical conceive of the present utility model and feature; it is a kind of preferred embodiment; its object is to person skilled in the art can understand content of the present utility model and implement according to this, protection range of the present utility model can not be limited with this.All equivalent transformations of doing according to Spirit Essence of the present utility model or modification, all should be encompassed within protection range of the present utility model.
Claims (8)
1. an AC/DC universal device for under-voltage releasing equipment, comprise Switching Power Supply, coil, for being converted into galvanic rectification module when outer net is alternating current, characterized by further comprising: for obtaining the sampling module of described rectification module output voltage, break-make control module that is electric and dead electricity is obtained for controlling described coil, described Switching Power Supply provides stabilized voltage power supply for described break-make control module and described coil, described sampling module comprises optocoupler, the input of described optocoupler is connected with the output of described rectification module, described break-make control module comprises metal-oxide-semiconductor, the source electrode of described metal-oxide-semiconductor and drain electrode and described Switching Power Supply, described coil tandem, the grid of described metal-oxide-semiconductor is connected with the output of described optocoupler, when the magnitude of voltage that described sampling module exports is greater than setting voltage value, described metal-oxide-semiconductor conducting, described Switching Power Supply, described coil, described metal-oxide-semiconductor forms series loop, described coil obtains electric, when the magnitude of voltage that described sampling module exports is less than setting voltage value, described metal-oxide-semiconductor cut-off, described coil losing electricity.
2. device for under-voltage releasing equipment according to claim 1, is characterized in that: described coil tandem is between the positive pole and the drain electrode of described metal-oxide-semiconductor of described Switching Power Supply.
3. device for under-voltage releasing equipment according to claim 1, is characterized in that: the grid of described metal-oxide-semiconductor, source electrode and described optocoupler and described Switching Power Supply serial connection.
4. device for under-voltage releasing equipment according to claim 1, it is characterized in that: this device for under-voltage releasing equipment comprises surge absoption and immunity module, the input of described surge absoption and immunity module is connected with outer net and output is connected with the input of described rectification module, and described surge absoption and immunity module comprise the piezo-resistance and the first electric capacity that are in parallel.
5. device for under-voltage releasing equipment according to claim 4, is characterized in that: described rectification module comprises the bridge rectifier and the second electric capacity that are in parallel, and the input of described bridge rectifier is connected with the output of described surge absoption and immunity module.
6. device for under-voltage releasing equipment according to claim 1, is characterized in that: described sampling module also comprises the second resistance, the first resistance, and described optocoupler is connected in series described first resistance and described rectification module with after described second resistor coupled in parallel.
7. device for under-voltage releasing equipment according to claim 1, is characterized in that: the resistance value of described coil is 300 ~ 2000 Ω.
8. device for under-voltage releasing equipment according to claim 1, is characterized in that: the rated voltage of described outer net is the alternating voltage of below 230V or the direct voltage of below 320V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520311055.4U CN204559097U (en) | 2015-05-14 | 2015-05-14 | AC/DC universal device for under-voltage releasing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520311055.4U CN204559097U (en) | 2015-05-14 | 2015-05-14 | AC/DC universal device for under-voltage releasing equipment |
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| Publication Number | Publication Date |
|---|---|
| CN204559097U true CN204559097U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520311055.4U Active CN204559097U (en) | 2015-05-14 | 2015-05-14 | AC/DC universal device for under-voltage releasing equipment |
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|---|---|
| CN (1) | CN204559097U (en) |
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2015
- 2015-05-14 CN CN201520311055.4U patent/CN204559097U/en active Active
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