CN208581052U - Relay driving control circuit and its manufactured photovoltaic energy storage inverter - Google Patents
Relay driving control circuit and its manufactured photovoltaic energy storage inverter Download PDFInfo
- Publication number
- CN208581052U CN208581052U CN201821448522.8U CN201821448522U CN208581052U CN 208581052 U CN208581052 U CN 208581052U CN 201821448522 U CN201821448522 U CN 201821448522U CN 208581052 U CN208581052 U CN 208581052U
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- circuit
- relay
- control
- accumulator
- switching tube
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- 238000004146 energy storage Methods 0.000 title claims abstract description 20
- 230000005611 electricity Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims 1
- 230000009977 dual effect Effects 0.000 abstract description 2
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 description 5
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses a kind of relay driving control circuits, including driving circuit, switching tube circuit and accumulator；Control the input terminal of signal connection driving circuit, the control terminal of the output end connection switch pipe circuit of driving circuit, motion end one end ground connection of switching tube circuit, one end of motion end other end connection relay control coil；Accumulator one end ground connection, output end connects the first power supply signal and second source signal simultaneously, while output end is also connected with the other end of relay control coil.The utility model additionally provides the photovoltaic energy storage inverter including the relay driving control circuit.The utility model carries out energy storage by accumulator, simultaneously by way of dual power supply, realize the heavy-current discharge in relay coil power up phase, and stablizes the low current after powering in relay coil and maintain, to effectively reduce the power consumption of relay driving control circuit, and circuit is simple and reliable, and it is low in cost.
Description
Technical field
The utility model is specifically related to a kind of relay driving control circuit and its manufactured photovoltaic energy storage inverter.
Background technique
With the development and the improvement of people's living standards of economic technology, relay has been widely used for the production of people
Among life, endless convenience is brought to people's production and life.
Relay is a kind of electric-controlled switch, in inverter internal generally as a kind of automatic switch, plays safeguard protection
Effect: when inverter breaks down, relay can disconnect automatically, so that inverter can in time and power grid
Be detached from, to guarantee that inverter will not power to power grid when fault of converter, thus guarantee at this time power grid without electricity.But such as
Situations such as control circuit of fruit relay fails or the contact of relay is sintered, may make relay in inverter
Normally inverter and power grid can not be disconnected when failure, thus not can guarantee power grid without electricity.
To solve the above-mentioned problems, currently used technical solution is the strategy using circuit redundancy: identical using two groups
Relay and its control drive control circuit, controlled respectively by different controllers, to realize the hardware of relay
Redundancy guarantees that relay can reliably cut off the connection between inverter and power grid when fault of converter, guarantees power grid without electricity.
But due to increasing relay and its corresponding drive control circuit, so that the overall power consumption of inverter increases, to reduce
The efficiency of inverter.
Utility model content
One of the purpose of this utility model is to provide a kind of power consumption smaller and simple and reliable relay driving control electricity
Road.
The two of the purpose of this utility model are to provide a kind of photovoltaic energy storage inverter, this kind of photovoltaic energy storage inverter packet
The relay driving control circuit is included.
This relay driving control circuit provided by the utility model, including driving circuit, switching tube circuit and energy storage
Circuit；Control is signally attached to the input terminal of driving circuit, and the control terminal of the output end connection switch pipe circuit of driving circuit is opened
Close motion end one end ground connection of pipe circuit, one end of the motion end other end connection relay control coil of switching tube circuit；Storage
One end ground connection of energy circuit, the output end of accumulator connect the first power supply signal and second source signal, while energy storage simultaneously
The output end of circuit is also directly connected to the other end of relay control coil.
The relay driving control circuit further includes switching tube protection circuit；Switching tube protection circuit is serially connected in driving
Between circuit and switching tube circuit, protected for switch tube circuit.
The switching tube protection circuit is Zener diode.
The relay driving control circuit further includes relay protection circuit；Relay protection circuit is connected in parallel on relay
Device control coil both ends, for being protected to relay control coil.
The relay protection circuit includes diode and Zener diode；One end connection two of relay control coil
The anode of pole pipe, the cathode of the cathode connection Zener diode of diode, the anode of Zener diode connect relay control line
The other end of circle.
The switching tube circuit is triode or field-effect tube.
The driving circuit includes input current-limiting resistance and control terminal pull down resistor；It controls signal and passes through input current limliting electricity
The control terminal of connection switch pipe circuit is hindered, the control terminal of switching tube circuit also passes through control terminal pull down resistor and is grounded.
The accumulator is capacitor energy storage circuit.
First power supply signal is used for as accumulator power supply and energy storage；The second source signal be used for after
After electric apparatus coil stabilization powers on, stable power supply is provided for relay coil, while also keeping energy storage shape for accumulator
State.
The utility model additionally provides a kind of photovoltaic energy storage inverter, this kind of photovoltaic energy storage inverter include it is above-mentioned after
Electrical equipment drive control circuit.
This relay driving control circuit provided by the utility model carries out energy storage by accumulator, passes through simultaneously
The mode of dual power supply realizes the heavy-current discharge in relay coil power up phase, and stablizes in relay coil
Low current after powering on maintains, so that the power consumption of relay driving control circuit is effectively reduced, and circuit is simple and reliable, at
This is cheap.
Detailed description of the invention
Fig. 1 is the functional block diagram of the utility model.
Fig. 2 is the circuit theory schematic diagram of the utility model.
Specific embodiment
It is as shown in Figure 1 the functional block diagram of the utility model: this relay driving control provided by the utility model
Circuit, including driving circuit, switching tube circuit, accumulator, switching tube protection circuit and relay protection circuit；Control signal
It is connected to the input terminal of driving circuit, the control terminal of the output end connection switch pipe circuit of driving circuit, switching tube circuit moves
Make end one end ground connection, one end of the motion end other end connection relay control coil of switching tube circuit；One end of accumulator
Ground connection, the output end of accumulator connect the first power supply signal and second source signal, while the output end of accumulator simultaneously
Also it is directly connected to the other end of relay control coil；Switching tube protection circuit be serially connected in driving circuit and switching tube circuit it
Between, it is protected for switch tube circuit；Relay protection circuit is connected in parallel on relay control coil both ends, for relay
Device control coil is protected.
It is illustrated in figure 2 the functional block diagram of the utility model: where driving circuit includes current-limiting resistance R1 and control terminal
Pull down resistor R2；Switching tube is field-effect tube Q1；Switching tube protection circuit is Zener diode D1；Relay protection circuit includes
Diode D2 and Zener diode D3；Accumulator is capacitor energy storage circuit C1；K1 is relay；VCC1 is the first power supply letter
Number, VCC2 is second source signal.
Signal is controlled by the control terminal of input current-limiting resistance connection switch pipe, the control terminal of switching tube also passes through control terminal
Pull down resistor ground connection, motion end one end ground connection of switching tube, the motion end other end connection relay control coil of switching tube
One end；One end of accumulator is grounded, and the output end of accumulator connects the first power supply signal simultaneously and (connected by current-limiting resistance R3
Connect) (connected by unidirectional protection diode D4) with second source signal, while the output end of accumulator be also directly connected to after
The other end of electrical equipment control coil；The anode of one end connection diode of relay control coil, the cathode connection of diode are neat
Receive the cathode of diode, the other end of the anode connection relay control coil of Zener diode.
The working principle of the utility model is as follows:
When control signal CTR is low, Q1 is closed, and VCC1 gives C1 to charge by resistance R3, fully charged rear C1 both end voltage
Size is equal to VCC1, and the load that relay is controlled at this time is in an off state, i.e., relay coil does not power on；
Control signal CTR is set into height, Q1 is opened, and relay coil is connected, C1 electric discharge, to provide together with power supply VCC1
Relay is attracted required electric current；When C1 both end voltage drops near VCC2, the coil of relay is provided by power supply VCC2,
Relay can be made voluntarily low current to be kept to work after actuation.
In the specific implementation, the voltage of power supply VCC2 is set below to the voltage of power supply VCC1.
Since the operating current of relay is bigger than release current, the capacitor of the utility model can be provided the short time
Relay coil is attracted required larger current, while after relay actuation, being worked automatically with lower maintenance electric current,
Power consumption is reduced, inverter efficiency is improved.
This relay driving control circuit provided by the utility model can be used for other any need and carry out relay drive
Dynamic electronic equipment, it is whole including all types of measuring instruments (such as electric energy meter, water meter, gas meter, flow meter, calorimeter etc.), electric energy management
End, distribution terminal, electric energy quality monitoring equipment, grid automation terminal, acquisition terminal, concentrator, data collector, gauge
Table, write by hand device, fault detector etc..
Claims (10)
1. a kind of relay driving control circuit, it is characterised in that including driving circuit, switching tube circuit and accumulator；Control
It is signally attached to the input terminal of driving circuit, the control terminal of the output end connection switch pipe circuit of driving circuit, switching tube circuit
Motion end one end ground connection, switching tube circuit the motion end other end connection relay control coil one end；Accumulator
The output end of one end ground connection, accumulator connects the first power supply signal and second source signal simultaneously, while accumulator is defeated
Outlet is also directly connected to the other end of relay control coil.
2. relay driving control circuit according to claim 1, it is characterised in that further include switching tube protection circuit；It opens
It closes tube protective circuit to be serially connected between driving circuit and switching tube circuit, be protected for switch tube circuit.
3. relay driving control circuit according to claim 2, it is characterised in that the switching tube protection circuit is
Zener diode.
4. relay driving control circuit according to claim 1, it is characterised in that the relay driving controls electricity
Road further includes relay protection circuit；Relay protection circuit is connected in parallel on relay control coil both ends, for relay control
Coil processed is protected.
5. relay driving control circuit according to claim 4, it is characterised in that the relay protection circuit packet
Include diode and Zener diode；The anode of one end connection diode of relay control coil, the cathode connection of diode are neat
Receive the cathode of diode, the other end of the anode connection relay control coil of Zener diode.
6. relay driving control circuit described according to claim 1~one of 5, it is characterised in that the switching tube circuit
For triode or field-effect tube.
7. relay driving control circuit described according to claim 1~one of 5, it is characterised in that the driving circuit packet
Include input current-limiting resistance and control terminal pull down resistor；It controls signal and passes through the control of input current-limiting resistance connection switch pipe circuit
End, the control terminal of switching tube circuit also pass through control terminal pull down resistor and are grounded.
8. relay driving control circuit described according to claim 1~one of 5, it is characterised in that the accumulator is
Capacitor energy storage circuit.
9. relay driving control circuit described according to claim 1~one of 5, it is characterised in that the first power supply letter
Number for for accumulator power supply and energy storage；The second source signal be used for relay coil stablize power on after, for after
Electric apparatus coil provides stable power supply, while also keeping energy storage state for accumulator.
10. a kind of photovoltaic energy storage inverter, it is characterised in that controlled including relay driving described in one of claim 1~9
Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821448522.8U CN208581052U (en) | 2018-09-05 | 2018-09-05 | Relay driving control circuit and its manufactured photovoltaic energy storage inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821448522.8U CN208581052U (en) | 2018-09-05 | 2018-09-05 | Relay driving control circuit and its manufactured photovoltaic energy storage inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581052U true CN208581052U (en) | 2019-03-05 |
Family
ID=65512617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821448522.8U Withdrawn - After Issue CN208581052U (en) | 2018-09-05 | 2018-09-05 | Relay driving control circuit and its manufactured photovoltaic energy storage inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581052U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950961A (en) * | 2019-04-01 | 2019-06-28 | 福州欣联达电子科技有限公司 | A kind of single-direction and dual-direction switching circuit and its control method |
-
2018
- 2018-09-05 CN CN201821448522.8U patent/CN208581052U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109950961A (en) * | 2019-04-01 | 2019-06-28 | 福州欣联达电子科技有限公司 | A kind of single-direction and dual-direction switching circuit and its control method |
| CN109950961B (en) * | 2019-04-01 | 2023-11-24 | 福州欣联达电子科技有限公司 | Single-direction and double-direction switch circuit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20231130 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190305 Effective date of abandoning: 20231130 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |