CN209844853U - A high-voltage board intelligence fuse gets electric installation for having auxiliary power supply - Google Patents
A high-voltage board intelligence fuse gets electric installation for having auxiliary power supply Download PDFInfo
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- CN209844853U CN209844853U CN201920549440.0U CN201920549440U CN209844853U CN 209844853 U CN209844853 U CN 209844853U CN 201920549440 U CN201920549440 U CN 201920549440U CN 209844853 U CN209844853 U CN 209844853U
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Abstract
The utility model discloses a high-voltage board intelligence fuse gets electric installation for having auxiliary power source, include the opto-coupler chip that is connected with high tension cable, silicon controlled rectifier chip, get the electric transformer, be connected with the rectifier bridge circuit on silicon controlled rectifier chip's main electrode, the negative pole end of opto-coupler chip is connected with controllable accurate steady voltage source, the output of rectifier bridge circuit is connected with step-down type steady voltage chip, voltage output end is provided with Vout + pin through one-way diode, the Vout-output pin of DIP8 chip is connected on output voltage connecting terminal's Vout-pin, it has five super capacitor to connect in parallel between Vout-pin and Vout + pin. The utility model discloses a structure sets up rationally, because the induction of mutual-inductor gets the electric mode, with the help of super capacitor, the trip coil that the electric current made high voltage circuit breaker in the twinkling of an eye through super capacitor production realizes the dropout operation, has solved the unable intelligent electric relay protection's of realizing technique not enough of no auxiliary power high-voltage board.
Description
Technical Field
The utility model belongs to the technical field of the high-voltage board, concretely relates to a high-voltage board intelligence fuse gets electric installation for having no auxiliary power source.
Background
Along with the maturity of distribution network automation technology, high voltage distribution cabinet, the technological degree of automation that electric secondary relay protection field relates also is more and more high, all kinds of devices that still need at switch board etc. all need outside auxiliary power source to supply power, but looped netowrk cabinet, aerify high voltage output distribution occasions such as cabinet, do not just have this cabinet auxiliary power source when the design, owing to do not have corresponding auxiliary power source, make unable electric automation equipment of use, so traditional looped netowrk cabinet, aerify the electric relay protection function that just can't realize intellectuality of switch boards such as cabinet, and can only adopt mechanical type, the protection mode of fuse type, the suitability receives the restriction.
Disclosure of Invention
The utility model aims at providing a get electric installation for no auxiliary power supply's high-voltage board intelligence fuse aims at solving the unable intelligent electric relay protection's of realizing technique not enough of no auxiliary power supply high-voltage board.
Realize the utility model discloses the technical scheme of purpose is:
an electricity taking device for a high-voltage cabinet intelligent fuse without an auxiliary power supply comprises an optocoupler chip connected with a high-voltage cable, an input voltage connecting terminal, a controllable silicon chip connected with the input voltage connecting terminal and an electricity taking mutual inductor arranged on the high-voltage cable, wherein the electricity taking mutual inductor is connected with a gate pole of the controllable silicon chip, a rectifier bridge circuit is connected on a main electrode of the controllable silicon chip, an output end of the rectifier bridge circuit is connected with a positive end of the optocoupler chip, a negative end of the optocoupler chip is connected with a controllable precise voltage stabilizing source, an output end of the rectifier bridge circuit is connected on a reference electrode of the controllable precise voltage source through a resistor, an output end of the rectifier bridge circuit is connected with a step-down voltage stabilizing chip, and a voltage output end of the step-down voltage stabilizing chip is connected with an output voltage connecting terminal used for high-voltage cabinet intelligent equipment, the feedback end of the buck-type voltage stabilizing chip is connected to the voltage output end of the buck-type voltage stabilizing chip through a feedback circuit, the control end of the buck-type voltage stabilizing chip is provided with a control circuit, the control circuit is connected with a DIP8 chip, the voltage output end of the buck-type voltage stabilizing chip is provided with a Vout + pin through a one-way diode, the Vout-output end pin of the DIP8 chip is connected to the Vout-pin of the output voltage connecting terminal, and five super capacitors are connected between the Vout-pin and the Vout + pin in parallel.
In the above technical scheme, the voltage output end of the buck voltage stabilization chip is further connected with an indicator lamp circuit.
In the above technical scheme, the power taking mutual inductor is a current mutual inductor, and the high-voltage cable is arranged in the center of the current mutual inductor in a penetrating manner.
In the above technical solution, the control circuit includes an NPN type triode and an eleventh resistor, an emitter of the NPN type triode is connected to the control end of the buck type voltage stabilization chip, a collector of the NPN type triode is grounded, and a base of the NPN type triode is connected to the first pin of the DIP8 chip through the eleventh resistor.
In the above technical scheme, the feedback circuit includes a first capacitor, a third capacitor and an adjustable resistor, the first capacitor is connected in series with the third capacitor, the other end of the first capacitor is connected to a feedback pin of the buck-type voltage stabilization chip, the other end of the third capacitor is grounded, a connection point of the first capacitor and the third capacitor is connected to a voltage output end of the buck-type voltage stabilization chip, two ends of the adjustable resistor are connected to a connection point of the first capacitor and the third capacitor, and a control end of the adjustable resistor is connected to the feedback pin of the buck-type voltage stabilization chip.
In the technical scheme, the super capacitor is a capacitor with 5.5V/F.
In the technical scheme, the type of the optocoupler chip is MOC3038, the type of the controllable silicon chip is BAT26600B, the type of the controllable precision voltage stabilizing source is TL431, and the type of the voltage reducing type voltage stabilizing chip is LM 2576.
In the above technical solution, the voltage value of the voltage output end of the buck-type voltage stabilization chip is 24V.
The utility model discloses has positive effect: the utility model discloses a structure sets up rationally, it is through getting the alternating voltage that the electric transformer produced, through silicon controlled chip's switching action, pass through behind rectifier bridge circuit and step-down type voltage stabilization chip again, obtain a stable voltage output, and through parallelly connected super capacitor at the output voltage both ends, because the induction of mutual-inductor gets the electric mode, make to obtain the load that the voltage source can only drive the miniwatt, with the help of super capacitor, get up a large amount of charge storage, the electric current in the twinkling of an eye that produces through super capacitor makes high voltage circuit breaker's trip coil realize the dropout operation when using, thereby make the high-voltage board that does not have secondary power supply realize intelligent electric automatization, only need be equipped with a current transformer, the unable intelligent electric relay protection's of realization technique that has solved no auxiliary power source high-voltage board promptly is not enough, stable and.
Drawings
In order that the present invention may be more readily and clearly understood, the following detailed description of the present invention is provided in connection with the following specific embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a specific circuit diagram of the present invention.
Detailed Description
Fig. 1 shows a specific embodiment of the present invention, wherein fig. 1 is a specific circuit diagram of the present invention.
As shown in fig. 1, an electricity taking device for a high-voltage cabinet intelligent fuse without an auxiliary power supply comprises an optical coupler chip U1 connected with a high-voltage cable (L, N), an input voltage connecting terminal P1, a silicon controlled chip Q1 connected with the input voltage connecting terminal P1, and an electricity taking mutual inductor CT arranged on the high-voltage cable, wherein the electricity taking mutual inductor CT is connected with a gate pole of the silicon controlled chip Q1, a rectifier bridge circuit D is connected with a main electrode of the silicon controlled chip Q1, an output end of the rectifier bridge circuit D is connected with a positive electrode end of the optical coupler chip U1, a negative electrode end of the optical coupler chip U1 is connected with a controllable precision voltage stabilizing source J3, an output end of the rectifier bridge circuit D is connected with a reference electrode of the controllable precision source through a resistor R, an output end of the rectifier bridge circuit D is connected with a step-down voltage stabilizing chip U2, and a voltage output end of the step-down voltage stabilizing chip U2 is connected with The voltage-stabilizing circuit comprises a voltage connecting terminal P2, wherein the feedback end of the buck-type voltage-stabilizing chip is connected to the voltage output end of a buck-type voltage-stabilizing chip U2 through a feedback circuit, the control end of the buck-type voltage-stabilizing chip U2 is provided with a control circuit, a DIP8 chip is connected to the control circuit, the voltage output end of the buck-type voltage-stabilizing chip U2 is provided with a Vout + pin through a one-way diode D7, the Vout-output end pin of the DIP8 chip is connected to the Vout-pin of an output voltage connecting terminal, and five super capacitors C are connected between the Vout-pin and the Vout + pin in parallel.
In this embodiment, the voltage output terminal of the buck-type voltage stabilization chip U2 is further connected to an indicator lamp circuit.
The electricity-taking mutual inductor is a current mutual inductor, and the high-voltage cable penetrates through the center of the current mutual inductor.
As a further improvement, the control circuit comprises an NPN-type transistor Q2 and an eleventh resistor R11, wherein an emitter of the NPN-type transistor Q2 is connected to the control terminal of the buck-type voltage regulation chip U2, and a collector of the NPN-type transistor Q2 is grounded, and a base of the NPN-type transistor is connected to the first pin of the DIP8 chip through the eleventh resistor R11. The feedback circuit comprises a first capacitor C1, a third capacitor C3 and an adjustable resistor R1, the first capacitor C1 and the third capacitor C3 are connected in series, the other end of the first capacitor is connected to a feedback pin of the buck-type voltage stabilizing chip U2, the other end of the third capacitor is grounded, meanwhile, a connecting point of the first capacitor and the third capacitor is connected with a voltage output end of the buck-type voltage stabilizing chip U2, two ends of the adjustable resistor are connected to a connecting point of the first capacitor and the third capacitor, and a control end of the adjustable resistor is connected to the feedback pin of the buck-type voltage stabilizing chip.
In this embodiment, the super capacitor is a capacitor of 5.5V/F. The type of the optical coupler chip is MOC3038, the type of the controllable silicon chip is BAT26600B, the type of the controllable precise voltage stabilizing source is TL431, and the type of the voltage reducing type voltage stabilizing chip U2 is LM 2576. The voltage value of the voltage output end of the buck-type voltage stabilization chip is 24V.
The structure of the embodiment is reasonable, alternating voltage generated by the electricity-taking mutual inductor is subjected to the switching action of the silicon controlled rectifier chip (the silicon controlled rectifier plays a role of a switch, a voltage source obtained by the mutual inductor is unstable, and the silicon controlled rectifier chip can bear larger voltage fluctuation), a stable voltage output is obtained through the rectifier bridge circuit and the voltage reduction type voltage stabilization chip, and the voltage source can only drive a low-power load through the super capacitor connected in parallel at two ends of the output voltage, due to the induction electricity-taking mode of the mutual inductor, a large amount of charges are stored by the super capacitor, and when the high-voltage cabinet without a secondary power supply realizes intelligent electrical automation by using instant current generated by the super capacitor to realize tripping operation of a tripping coil of the high-voltage circuit breaker, only one current mutual inductor needs to be equipped, the technical defect that intelligent electrical relay protection cannot be realized in a high-voltage cabinet without an auxiliary power supply is overcome, and the intelligent electrical relay protection device is stable and reliable to use.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (8)
1. The utility model provides a high-voltage board intelligence fuse gets electric installation for having auxiliary power supply, includes the opto-coupler chip that is connected with high tension cable, its characterized in that: the high-voltage intelligent equipment also comprises an input voltage connecting terminal, a silicon controlled chip connected with the input voltage connecting terminal and a power-taking mutual inductor arranged on a high-voltage cable, wherein the power-taking mutual inductor is connected with a gate pole of the silicon controlled chip, a rectifier bridge circuit is connected on a main electrode of the silicon controlled chip, the output end of the rectifier bridge circuit is connected with the positive end of an optical coupler chip, the negative end of the optical coupler chip is connected with a controllable precise voltage-stabilizing source, the output end of the rectifier bridge circuit is connected with a reference electrode of the controllable precise voltage-stabilizing source through a resistor, the output end of the rectifier bridge circuit is connected with a step-down voltage-stabilizing chip, the voltage output end of the step-down voltage-stabilizing chip is connected with an output voltage connecting terminal used for high-voltage cabinet intelligent equipment, and the feedback end of the step-down voltage-stabilizing chip, the control end of the buck-type voltage stabilization chip is provided with a control circuit, the control circuit is connected with a DIP8 chip, the voltage output end of the buck-type voltage stabilization chip is provided with a Vout + pin through a one-way diode, the Vout-output end pin of the DIP8 chip is connected to the Vout-pin of the output voltage connection terminal, and five super capacitors are connected between the Vout-pin and the Vout + pin in parallel.
2. The high-voltage cabinet intelligent fuse electricity taking device without the auxiliary power supply as claimed in claim 1, characterized in that: and the voltage output end of the voltage reduction type voltage stabilization chip is also connected with an indicator lamp circuit.
3. The high-voltage cabinet intelligent fuse electricity taking device without the auxiliary power supply as claimed in claim 2, characterized in that: the electricity-taking mutual inductor is a current mutual inductor, and the high-voltage cable penetrates through the center of the current mutual inductor.
4. The high-voltage cabinet intelligent fuse electricity taking device without the auxiliary power supply as claimed in claim 3, characterized in that: the control circuit comprises an NPN type triode and an eleventh resistor, wherein an emitting electrode of the NPN type triode is connected to the control end of the buck voltage stabilizing chip, a collector electrode of the NPN type triode is grounded, and a base electrode of the NPN type triode is connected to a first pin of the DIP8 chip through the eleventh resistor.
5. The high-voltage cabinet intelligent fuse electricity taking device without the auxiliary power supply as claimed in claim 4, characterized in that: the feedback circuit comprises a first capacitor, a third capacitor and an adjustable resistor, the first capacitor is connected with the third capacitor in series, the other end of the first capacitor is connected to a feedback pin of the buck-type voltage stabilizing chip, the other end of the third capacitor is grounded, meanwhile, a connection point of the first capacitor and the third capacitor is connected with a voltage output end of the buck-type voltage stabilizing chip, two ends of the adjustable resistor are connected to a connection point of the first capacitor and the third capacitor, and a control end of the adjustable resistor is connected to the feedback pin of the buck-type voltage stabilizing chip.
6. The intelligent high-voltage cabinet fuse electricity taking device without the auxiliary power supply as claimed in claim 5, wherein: the super capacitor is a capacitor with 5.5V/F.
7. The high-voltage cabinet intelligent fuse electricity taking device without the auxiliary power supply as claimed in claim 6, characterized in that: the model of the optical coupler chip is MOC3038, the model of the controllable silicon chip is BAT26600B, the model of the controllable precise voltage stabilizing source is TL431, and the model of the voltage reducing type voltage stabilizing chip is LM 2576.
8. The intelligent high-voltage cabinet fuse electricity taking device without the auxiliary power supply as claimed in claim 7, wherein: the voltage value of the voltage output end of the buck-type voltage stabilization chip is 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549440.0U CN209844853U (en) | 2019-04-22 | 2019-04-22 | A high-voltage board intelligence fuse gets electric installation for having auxiliary power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549440.0U CN209844853U (en) | 2019-04-22 | 2019-04-22 | A high-voltage board intelligence fuse gets electric installation for having auxiliary power supply |
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| CN209844853U true CN209844853U (en) | 2019-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022084383A1 (en) * | 2020-10-20 | 2022-04-28 | Webasto SE | Charging device with emergency energy supply device, and method for an emergency energy supply |
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2019
- 2019-04-22 CN CN201920549440.0U patent/CN209844853U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022084383A1 (en) * | 2020-10-20 | 2022-04-28 | Webasto SE | Charging device with emergency energy supply device, and method for an emergency energy supply |
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