CN105958465A - Reverse-connection preventing circuit for off-grid control and inversion integrated machine - Google Patents
Reverse-connection preventing circuit for off-grid control and inversion integrated machine Download PDFInfo
- Publication number
- CN105958465A CN105958465A CN201610319809.XA CN201610319809A CN105958465A CN 105958465 A CN105958465 A CN 105958465A CN 201610319809 A CN201610319809 A CN 201610319809A CN 105958465 A CN105958465 A CN 105958465A
- Authority
- CN
- China
- Prior art keywords
- circuit
- cells
- reverse
- bat
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a reverse-connection preventing circuit for an off-grid control and inversion integrated machine, which comprises a main power circuit, a control circuit and a signal circuit, and is characterized in that the main power circuit is a power relay (RY1), two switch contacts of the power relay (RY1) are connected to a negative electrode of a battery pack (BAT) and a negative input end of the off-grid control and inversion integrated machine respectively; an input end of the control circuit is connected to a positive electrode and the negative electrode of the battery pack (BAT), an output end of the control circuit is connected to one end of a driving coil of the power relay, and the other end of the driving coil of the power relay is connected to the negative electrode of the battery pack; and an input end of the signal circuit is connected to the positive electrode and the negative electrode of the battery pack. The control circuit operates normally when the battery pack (BAT) is correctly corrected, and controls the main power circuit to operate; and the signal circuit is controlled by the battery pack (BAT), the signal circuit operates normally when the positive electrode and the negative electrode of the battery pack (BAT) are incorrectly connected, and a light-emitting diode (D3) is connected and gives out fault signals.
Description
Technical field
The present invention relates to the intelligent reverse-connection preventing circuit of a kind of off-network inverse control all-in-one machine set of cells.
Background technology
The family photovoltaic generating system being made up of solar panel+set of cells+off-network control integrated machine for reverse conversion is partially
Remote areas without electricity is used widely.But owing to personnel's educational level of product territory of use is the most on the low side, to electrical equipment
It is unfamiliar with, often occurs during installation to cause off-network inverter to damage because of set of cells input incorrect polarity, affect system
Normal use.In view of the actual educational level of user of service, design has the input circuit of automatic anti-reverse connection function to be had non-
The biggest practical significance.
Existing reverse-connection preventing circuit is the mode protection circuit using thermal cut-off, and the shortcoming of this mode maximum is that it is irreversible
Property.
Summary of the invention
The present invention seeks to overcome the irreversible shortcoming of existing anti-reverse scheme, propose one for off-network inverse control all-in-one machine
Reverse-connection preventing circuit,
The present invention is directed to the actual application environment of off-network inverter, use power relay as the electricity of intelligent anti-reverse protection
Circulation flow path, by controlling the break-make of power relay, it is achieved the set of cells of off-network inverter is inputted intelligent anti-reverse guarantor
Protect.The control of power relay has the feature of rapidity, seriality, real-time, simultaneously because it drives power supply to be electricity
Pond group, therefore it is without the power relay control circuit of other design specialized and testing circuit, reduces cost.
The circuit structure of the present invention includes main power circuit, control circuit and signal circuit.Wherein main power circuit is power
Relay, the switch contact of power relay is connected to negative pole and the negative input end of off-network inverse control all-in-one machine of set of cells.
Control circuit is by electrochemical capacitor, diode and power resistor composition.The input of control circuit is connected with set of cells, controls
The outfan of circuit is connected to the driving coil of power relay, and power relay drives the other end of coil to connect set of cells
Negative pole.Signal circuit is made up of light emitting diode and resistance.The input of signal circuit be connected to set of cells positive pole and
Negative pole.Control circuit is properly functioning when set of cells correctly accesses, and controls main power circuit work.Signal circuit is by battery
Group controls, and when the positive and negative electrode mistake of set of cells accesses, signal circuit is properly functioning, and its LEDs ON sends event
Barrier signal.For realizing the set of cells anti-reverse function of intelligence, the driving coil of power relay by battery power control, when
After set of cells outfan correctly accesses the set of cells input terminal of off-network inverse control all-in-one machine, power relay drives coil to power on
The switch contact of adhesive power relay, power relay turns on, and off-network inverter powers on properly functioning.When set of cells is defeated
After going out end mistake access off-network inverse control all-in-one machine set of cells input terminal, power relay drives coil to be not detected by set of cells
Voltage, disconnects with off-network inverter system side, and set of cells without being connected, protects inverter with off-network inverse control all-in-one machine.
Accompanying drawing explanation
Fig. 1 is collecting and distributing type grid-connected photovoltaic system topological diagram；
Fig. 2 is intelligence reverse connection prevention protection circuit and off-network inverse control all-in-one machine block diagram；
Fig. 3 is the topological diagram of intelligence reverse connection prevention protection circuit and off-network inverse control all-in-one machine.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
As it is shown in figure 1, intelligence reverse-connection preventing circuit of the present invention includes main power circuit, control circuit and signal circuit.Its
Middle main power circuit includes being connected on set of cells respectively for two switch contacts of power relay RY1, power relay RY1
The negative pole of BAT and the negative input end of off-network inverse control all-in-one machine.Control circuit is by electrochemical capacitor E1, diode D2 and power
Resistance R2 forms, and electrochemical capacitor E1 and power resistor R2 negative electrode with diode D2 more in parallel is connected, diode D2
Anode be connected to battery anode.The input of control circuit connects end and is connected to positive level and the negative pole of set of cells BAT, controls
The output of circuit is connected to the driving coil of power relay, and power relay drives the negative of another termination set of cells of coil
Pole.Signal circuit is made up of light emitting diode D3 and resistance R1, and light emitting diode D3 connects with resistance R1.Signal
The input of circuit is connected to positive pole and the negative pole of set of cells.Wherein control circuit is normally transported when set of cells correctly accesses
OK, main power circuit work is controlled.Signal circuit electric routing battery controls, when the positive and negative electrode mistake of set of cells accesses
Signal circuit is properly functioning, and LEDs ON sends fault-signal.
Terminal J1 is set of cells both positive and negative polarity input terminal；Terminal J2 is the lead-out terminal of intelligence reverse-connection preventing circuit, and its one end is even
Being connected to battery anode, the other end is connected to off-network inverse control all-in-one machine internal circuit.
When set of cells both positive and negative polarity correctly accesses intelligent battery group reverse-connection preventing circuit, cell voltage passes through diode D2 and electrolysis
Electric capacity E1 controls power relay R1 conducting, and the negative pole of set of cells BAT is accessed by the power relay contact of Guan Bi
System, now red light emitting diodes D3 often goes out, and after electrochemical capacitor E1 completes charging, set of cells BAT passes through two
Pole pipe D2, power resistor R2 maintain relay conducting.
When set of cells both positive and negative polarity mistake accesses intelligent battery group reverse-connection preventing circuit, and power relay R1 is because control circuit is without electricity
Disconnecting, the negative pole of set of cells disconnects because of the switch contact of power relay, disconnects with off-network inverse control all-in-one machine internal circuit,
Now red light emitting diodes D3 forward conduction Chang Liang, informs that user's set of cells both positive and negative polarity accesses mistake.
Present invention can apply to the on-off system with function equal with relay.
Fig. 2 show a 600W off-network inverse control all-in-one machine control block diagram, on the basis of conventional off-network inverter topology,
Adding intelligence reverse-connection preventing circuit, intelligence reverse-connection preventing circuit controls battery electrode with off-network inverse control all-in-one machine internal circuit even
Connect.Verify through real system, increase the 600W off-network inverse control all-in-one machine of intelligence reverse-connection preventing circuit, successfully solve electricity
The problem that the off-network inverter that pond group both positive and negative polarity accesses mistake and causes lost efficacy.
Fig. 3 show intelligence reverse-connection preventing circuit and applies the circuit diagram in off-network inverse control all-in-one machine, and battery anode is by controlling
Circuit diode D2, electrochemical capacitor E1, power resistor R2 and power relay drive coil to be connected to battery electrode；
Battery anode is connected to battery electrode by light emitting diode D3 and resistance R1, and 2 switches of power relay touch
Point is respectively connecting to battery electrode and off-network inverse control all-in-one machine internal circuit.
Claims (4)
1. the reverse-connection preventing circuit for off-network inverse control all-in-one machine, it is characterised in that described reverse-connection preventing circuit includes main merit
Rate circuit, control circuit and signal circuit；Described main power circuit is power relay (RY1), power relay
(RY1) two switch contacts are connected on negative pole and the negative input end of off-network inverse control all-in-one machine of set of cells (BAT) respectively；
The input of control circuit connects end and is connected to positive level and the negative pole of set of cells, and the outfan of control circuit connects power relay
Driving one end of coil, power relay drives the negative pole of another termination set of cells of coil；The input of signal circuit is even
It is connected to positive pole and the negative pole of set of cells.
2. according to the reverse-connection preventing circuit for off-network inverse control all-in-one machine described in claim 1, it is characterised in that described control
Circuit processed is by electrochemical capacitor (E1), diode (D2) and power resistor (R2) composition；Electrochemical capacitor (E1) and merit
Rate resistance (R2) parallel connection negative electrode with diode (D2) again is connected, and the anode of diode (D2) is just being connected to set of cells
Pole.
3. according to the reverse-connection preventing circuit for off-network inverse control all-in-one machine described in claim 1, it is characterised in that described letter
Number circuit is made up of light emitting diode (D3) and resistance (R1), and light emitting diode (D3) is connected with resistance (R1).
4. according to the reverse-connection preventing circuit for off-network inverse control all-in-one machine described in claim 1, it is characterised in that described control
Circuit processed is properly functioning when set of cells (BAT) correctly accesses, and controls main power circuit work；Signal circuit circuit by
Set of cells (BAT) controls, and when the positive and negative electrode mistake of set of cells (BAT) accesses, signal circuit is properly functioning,
Light emitting diode (D3) turns on, and sends fault-signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319809.XA CN105958465A (en) | 2016-05-13 | 2016-05-13 | Reverse-connection preventing circuit for off-grid control and inversion integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610319809.XA CN105958465A (en) | 2016-05-13 | 2016-05-13 | Reverse-connection preventing circuit for off-grid control and inversion integrated machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105958465A true CN105958465A (en) | 2016-09-21 |
Family
ID=56912798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610319809.XA Pending CN105958465A (en) | 2016-05-13 | 2016-05-13 | Reverse-connection preventing circuit for off-grid control and inversion integrated machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105958465A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631011A (en) * | 2017-03-24 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of battery connecting apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07212965A (en) * | 1994-01-24 | 1995-08-11 | Meidensha Corp | Connection protector for battery |
| CN201813158U (en) * | 2010-07-11 | 2011-04-27 | 兰莉莉 | Circuit for charging battery jar and preventing anode and cathode from reverse connection |
| CN103713232A (en) * | 2013-12-31 | 2014-04-09 | 厦门普罗太克科技有限公司 | Intelligent alarm capable of preventing battery reverse polarity |
| CN203660596U (en) * | 2013-12-19 | 2014-06-18 | 北汽福田汽车股份有限公司 | Reverse-connection prevention and impact reduction circuit of battery |
| CN204106901U (en) * | 2014-09-12 | 2015-01-21 | 中汽客汽车零部件（厦门）有限公司 | Vehicle intelligent fire-fighting control device |
| CN104333319A (en) * | 2014-11-10 | 2015-02-04 | 许继电气股份有限公司 | Input reverse connection protection circuit for photovoltaic grid-connected inverter |
| CN204349564U (en) * | 2014-11-12 | 2015-05-20 | 宁波中博电器有限公司 | Solar recharging all-in-one |
-
2016
- 2016-05-13 CN CN201610319809.XA patent/CN105958465A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07212965A (en) * | 1994-01-24 | 1995-08-11 | Meidensha Corp | Connection protector for battery |
| CN201813158U (en) * | 2010-07-11 | 2011-04-27 | 兰莉莉 | Circuit for charging battery jar and preventing anode and cathode from reverse connection |
| CN203660596U (en) * | 2013-12-19 | 2014-06-18 | 北汽福田汽车股份有限公司 | Reverse-connection prevention and impact reduction circuit of battery |
| CN103713232A (en) * | 2013-12-31 | 2014-04-09 | 厦门普罗太克科技有限公司 | Intelligent alarm capable of preventing battery reverse polarity |
| CN204106901U (en) * | 2014-09-12 | 2015-01-21 | 中汽客汽车零部件（厦门）有限公司 | Vehicle intelligent fire-fighting control device |
| CN104333319A (en) * | 2014-11-10 | 2015-02-04 | 许继电气股份有限公司 | Input reverse connection protection circuit for photovoltaic grid-connected inverter |
| CN204349564U (en) * | 2014-11-12 | 2015-05-20 | 宁波中博电器有限公司 | Solar recharging all-in-one |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631011A (en) * | 2017-03-24 | 2018-10-09 | 中兴通讯股份有限公司 | A kind of battery connecting apparatus |
| CN108631011B (en) * | 2017-03-24 | 2023-01-03 | 中兴通讯股份有限公司 | Battery connecting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103647316B (en) | A kind of serial lithium battery group power supply equalization management system | |
| CN205753523U (en) | Energy storage battery pack charging and discharging control and detection device | |
| CN203798939U (en) | Wire sequence detection circuit | |
| CN104467044A (en) | Charging control circuit and charger | |
| WO2013013555A1 (en) | An access control device for communication power supply storage battery | |
| CN202513559U (en) | Battery short-circuit protection circuit | |
| CN201726176U (en) | Charge control circuit with bidirectional reverse connection protection for storage batteries | |
| CN203086174U (en) | Multi-in-series high-voltage lithium battery pack equalizing device | |
| CN105958465A (en) | Reverse-connection preventing circuit for off-grid control and inversion integrated machine | |
| CN102097796A (en) | Voltage peak absorption protection circuit for power switching tube of solar energy charge controller | |
| CN105932344B (en) | One kind can cascade power battery pack security protection module | |
| CN101420123B (en) | Solar energy controller preventing reverse connection of accumulator | |
| CN209250277U (en) | A kind of reverse-charge prevention circuit and battery management system of battery | |
| CN203481904U (en) | Charger with battery reverse connection detection and protection functions | |
| CN103607004B (en) | The two-way non-dissipative equalizing of accumulator battery and pulse activated system | |
| CN215154067U (en) | Novel integrated BMS battery management system | |
| CN103630842A (en) | Charging detection system of battery pack | |
| CN205407256U (en) | Multi -stage parallel connection supply circuit | |
| CN209313501U (en) | A kind of double cell group parallel connection isolation circuit based on ideal diode | |
| CN202997677U (en) | Video server uninterrupted protection power system used in train | |
| CN202886568U (en) | Battery-charging detection system | |
| CN208257785U (en) | Bidirectional MOSFET switch circuit | |
| CN103580274B (en) | The uninterrupted protection power source system of a kind of train domestic video server | |
| CN203104045U (en) | Main circuit of solar charging controller | |
| CN201656451U (en) | Protective circuit for charger battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170329 Address after: 223400 Lianshui Economic Development Zone, innovation and entrepreneurship Park, building No. 20, Jiangsu Applicant after: Jiangsu Kenuo Weiye Photoelectric Technology Co., Ltd. Applicant after: Beijing Kenuo Weiye Photoelectric Technology Co., Ltd. Applicant after: BEIJING CORONA WEIYE TECHNOLOGY CO., LTD. Address before: 100083 Beijing city Haidian District Wangzhuang Road No. 1, Tsinghua Tongfang Technology Plaza B block 19 room 1908 Applicant before: Beijing Kenuo Weiye Photoelectric Technology Co., Ltd. Applicant before: BEIJING CORONA WEIYE TECHNOLOGY CO., LTD. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |