CN202997560U - Fully automatic quick reversal connection protection charger - Google Patents
Fully automatic quick reversal connection protection charger Download PDFInfo
- Publication number
- CN202997560U CN202997560U CN 201320011579 CN201320011579U CN202997560U CN 202997560 U CN202997560 U CN 202997560U CN 201320011579 CN201320011579 CN 201320011579 CN 201320011579 U CN201320011579 U CN 201320011579U CN 202997560 U CN202997560 U CN 202997560U
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- CN
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- Prior art keywords
- connection protection
- rechargeable battery
- reversal connection
- port
- optocoupler
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A fully automatic quick reversal connection protection charger is disclosed, comprising an alternating current input terminal and a power switching circuit, where the mains supply is connected with the power switching circuit through the alternating current input terminal, the power switching circuit is connected with a reversal connection protection circuit which is connected with an output port, the output terminal is connected with a rechargeable battery, a detection control unit is connected with the output port and the reversal connection protection circuit at the same time, polarities of the rechargeable battery can be detected through the output port, and a control signal for controlling the reversal connection protection circuit is generated. The fully automatic quick reversal connection protection charger is characterized in that a relay and controlled silicon are replaced with an MOS tube and an optical coupler by utilizing high speed of the MOS tube and the optical coupler, and therefore output can be turned off in a quick and effective manner and protection is realized. The fully automatic quick reversal connection protection charger can automatically detect the polarities of the rechargeable battery after being connected with the rechargeable battery, electric current output can be quickly cut off under a reversal connection condition, and the problem that rechargeable battery damage and potential safety hazards are caused due to charger reversal connection can be prevented. The fully automatic quick reversal connection protection charger is advantaged by wide application scope and reversal connection protection function.
Description
Technical field
The utility model relates to a kind of charger, relates in particular to a kind of full-automatic reverse connecting protection charger fast, and charger can detect rechargeable battery polarity after connecting rechargeable battery automatically, if the output of reversal connection fast shut-off.
Background technology
Daily the rechargeable batteries such as electric bicycle chargings can not be charged normal when charger output port polarity is opposite with rechargeable battery polarity, even cause the damage of charger and rechargeable battery.
Current charger reverse connecting protection adopts relay and controllable silicon to carry out reverse connecting protection mostly, but because its reaction speed is slow, formerly inserts to plug in rechargeable battery after civil power the untimely and problem of damage of protection is still arranged.
Summary of the invention
Problem to be solved in the utility model is that utilize metal-oxide-semiconductor and optocoupler high-speed substitutes relay and controllable silicon and turn-off fast and effectively output and protect.The utility model charger can detect rechargeable battery polarity after connecting rechargeable battery automatically, if but the output of reversal connection fast shut-off prevents that the charger reversal connection from causing charger and rechargeable battery to damage and potential safety hazard.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of full-automatic reverse connecting protection charger fast, comprise: ac input end and power-switching circuit, civil power is connected to power supply changeover device by ac input end, it is characterized in that: described power-switching circuit connects reverse-connection protection circuit, reverse-connection protection circuit connects output port, and output port connects rechargeable battery; Detection control unit connects output port and reverse-connection protection circuit simultaneously, detects rechargeable battery polarity from output port, produces a control signal and removes to control reverse-connection protection circuit.
According to described full-automatic reverse connecting protection charger fast, it is characterized in that: described reverse-connection protection circuit comprises a metal-oxide-semiconductor Q1, and metal-oxide-semiconductor Q1 has drain electrode, source electrode, grid; Detection control unit comprises an optocoupler U1 and a current-limiting resistance R1.
According to described full-automatic reverse connecting protection charger fast, it is characterized in that: reverse-connection protection circuit comprises a metal-oxide-semiconductor Q1, and metal-oxide-semiconductor Q1 has drain electrode), source electrode, grid; Detection control unit comprises an optocoupler U1 and a current-limiting resistance R1, and optocoupler U1 has 1 pin, 2 pin, 3 pin, 4 pin; Resistance R 1 has the A utmost point, the K utmost point; Power-switching circuit comprises positive port, power-switching circuit negative terminal mouth; Output port comprises output plus terminal mouth, output negative terminal mouth; Rechargeable battery comprises the positive port of battery, battery negative terminal mouth; Power-switching circuit negative terminal mouth is connected with metal-oxide-semiconductor Q1 source electrode, the positive port of the positive port of power-switching circuit and output port), the rechargeable battery port is connected, extremely be connected with the K of resistance R 1 simultaneously; Extreme mouthful of the 1 foot mouth of optocoupler U1 and the A of resistance R 1 are connected, and the 2 foot mouths of optocoupler U1 and metal-oxide-semiconductor Q1 drain that port is connected, the negative terminal mouth of output port, the battery negative terminal mouth of rechargeable battery are connected; 3 pin of optocoupler U1 are connected with metal-oxide-semiconductor Q1 gate port, and 4 pin of optocoupler U1 are connected with power supply VCC port.
The utility model utilizes metal-oxide-semiconductor and optocoupler, and high-speed relay and the controllable silicon of substituting turn-offs fast and effectively output and protects.The utility model charger can detect rechargeable battery polarity after connecting rechargeable battery automatically, if but the output of reversal connection fast shut-off electric current prevents that the charger reversal connection from causing charger and rechargeable battery to damage and potential safety hazard.Wide and the safety of the utility model charger scope of application has reversal connection protection function, can charge and protect charging device the opposed polarity charging device.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
A kind of full-automatic reverse connecting protection charger fast of the utility model as shown in Figure 1, comprising: ac input end 10, power-switching circuit 20, reverse-connection protection circuit 30, detection control unit 50, output port 40.The utility model be increase reverse-connection protection circuit 30 on the basis of existing light source of charger change-over circuit 20, detection control unit 50 realizes the full-automatic reverse connecting protection fast to charger.
The utility model civil power is connected to power-switching circuit device (power supply changeover device) by ac input end, and power-switching circuit connects reverse-connection protection circuit again, and reverse-connection protection circuit connects output port, and output port connects rechargeable battery; Detection control unit connects output port and reverse-connection protection circuit simultaneously, detects rechargeable battery polarity from output port, produces a control signal and removes to control reverse-connection protection circuit.
The utility model circuit theory as shown in Figure 2, reverse-connection protection circuit comprises a metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q1 has drain electrode 101, source electrode 102, grid 100.Detection control unit comprises an optocoupler U1 and a current-limiting resistance R1, and optocoupler U1 has 1 pin 200,2 pin 201,3 pin 202,4 pin 203; Resistance R 1 has the A utmost point 300, the K utmost point 301.Existing light source of charger change-over circuit 20 comprises positive port 400, power-switching circuit negative terminal mouth 401.Output port 40 comprises output plus terminal mouth 500, output negative terminal mouth 501.Rechargeable battery 60 comprises the positive port 600 of battery, battery negative terminal mouth 601.
Power-switching circuit negative terminal mouth 401 is connected with metal-oxide-semiconductor Q1 source electrode 102, and the positive port 400 of power-switching circuit is connected with positive port 500, the rechargeable battery port 600 of output port 40, is connected with the K utmost point 301 ends of resistance R 1 simultaneously.The 1 foot mouth 200 of optocoupler U1 and the A of resistance R 1 are connected for extreme mouthful 300, and the 2 foot mouths 201 of optocoupler U1 and metal-oxide-semiconductor Q1 drain that port 101 is connected, the negative terminal mouth 501 of output port 40, the battery negative terminal mouth 601 of rechargeable battery 60 are connected.3 pin 202 of optocoupler U1 are connected with metal-oxide-semiconductor Q1 gate port 100, and 4 pin 203 of optocoupler U1 are connected with power supply VCC port.
The utility model operation principle:
When detect the positive port 600 of rechargeable battery for just, battery negative terminal mouth 601 is when negative, rechargeable battery 60 flows out by 301 ports inflows, 300 ports of current-limiting resistance R1, supply with optocoupler U1, flow out from 1 pin 200 inflows, 2 pin 201 of optocoupler U1, optocoupler U1 is opened, optocoupler U1 opens rear VCC power supply by the 4 foot mouths 203 inflow 3 foot mouths 202 of optocoupler U1, send into metal-oxide-semiconductor Q1 gate port 100, metal-oxide-semiconductor Q1 is opened, 101 ports and 102 ports are connected, and whole like this charge circuit is connected just can the charging of bio-occlusion rechargeable battery.
Be timing when the positive port 600 of rechargeable battery being detected for negative, battery negative terminal mouth 601, rechargeable battery is connected, because Light-Emitting Diode reversal connection in optocoupler U1 body can not conducting, 201 ports of optocoupler U1 and 200 ports can not consist of the conducting loop, optocoupler U1 does not work, the power supply VCC that 203 ports of optocoupler U1 connect can not flow into 202 ports, and metal-oxide-semiconductor Q1 does not have not conducting of power supply (port one 01 and 102 not conductings), makes whole charge circuit can not become the loop with rechargeable battery.So just realized the function that charger output reversal connection can be protected fast.The utility model charger output can detect polarity automatically, if but reversal connection fast shut-off output.
Embodiment recited above is described preferred implementation of the present utility model; be not that design of the present utility model and protection range are limited; under the prerequisite that does not break away from the utility model design concept; various modification and improvement that in this area, common engineers and technicians make the technical solution of the utility model all should fall into protection range of the present utility model.
Claims (3)
1. full-automatic reverse connecting protection charger fast, comprise: ac input end and power-switching circuit, civil power is connected to power supply changeover device by ac input end, it is characterized in that: described power-switching circuit connects reverse-connection protection circuit, reverse-connection protection circuit connects output port, and output port connects rechargeable battery; Detection control unit connects output port and reverse-connection protection circuit simultaneously, detects rechargeable battery polarity from output port, produces a control signal and removes to control reverse-connection protection circuit.
2. full-automatic reverse connecting protection charger fast according to claim 1, it is characterized in that: described reverse-connection protection circuit comprises a metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q1 has drain electrode (101), source electrode (102), grid (100); Detection control unit comprises an optocoupler U1 and a current-limiting resistance R1.
3. full-automatic reverse connecting protection charger fast according to claim 1, it is characterized in that: reverse-connection protection circuit comprises a metal-oxide-semiconductor Q1, and metal-oxide-semiconductor Q1 has drain electrode (101), source electrode (102), grid (100); Detection control unit comprises an optocoupler U1 and a current-limiting resistance R1, and optocoupler U1 has 1 pin (200), 2 pin (201), 3 pin (202), 4 pin (203); Resistance R 1 has the A utmost point (300), the K utmost point (301); Power-switching circuit (20) comprises positive port (400), power-switching circuit negative terminal mouth (401); Output port (40) comprises output plus terminal mouth (500), output negative terminal mouth (501); Rechargeable battery (60) comprises the positive port of battery (600), battery negative terminal mouth (601); Power-switching circuit negative terminal mouth (401) is connected with metal-oxide-semiconductor Q1 source electrode (102), the positive port of power-switching circuit (400) is connected with positive port (500), the rechargeable battery port (600) of output port (40), is connected with the K utmost point (301) end of resistance R 1 simultaneously; The 1 foot mouth (200) of optocoupler U1 and the A of resistance R 1 extreme mouthful (300) are connected, and the 2 foot mouths (201) of optocoupler U1 and metal-oxide-semiconductor Q1 drain that port (101) is connected, the negative terminal mouth (501) of output port (40), the battery negative terminal mouth (601) of rechargeable battery (60) are connected; 3 pin (202) of optocoupler U1 are connected with metal-oxide-semiconductor Q1 gate port (100), and 4 pin (203) of optocoupler U1 are connected with power supply VCC port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011579 CN202997560U (en) | 2013-01-10 | 2013-01-10 | Fully automatic quick reversal connection protection charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320011579 CN202997560U (en) | 2013-01-10 | 2013-01-10 | Fully automatic quick reversal connection protection charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202997560U true CN202997560U (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320011579 Expired - Fee Related CN202997560U (en) | 2013-01-10 | 2013-01-10 | Fully automatic quick reversal connection protection charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202997560U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023011A (en) * | 2013-01-10 | 2013-04-03 | 山东润峰电子科技有限公司 | Full-automatic quick reverse-connection protective charger |
| CN107196630A (en) * | 2017-05-16 | 2017-09-22 | 深圳市盛弘电气股份有限公司 | A kind of system and method for being forced shutdown IGCT |
| CN108539712A (en) * | 2018-04-10 | 2018-09-14 | 苏州南江乐博机器人有限公司 | A kind of robot power supply input control device and input guard method |
-
2013
- 2013-01-10 CN CN 201320011579 patent/CN202997560U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023011A (en) * | 2013-01-10 | 2013-04-03 | 山东润峰电子科技有限公司 | Full-automatic quick reverse-connection protective charger |
| CN107196630A (en) * | 2017-05-16 | 2017-09-22 | 深圳市盛弘电气股份有限公司 | A kind of system and method for being forced shutdown IGCT |
| CN108539712A (en) * | 2018-04-10 | 2018-09-14 | 苏州南江乐博机器人有限公司 | A kind of robot power supply input control device and input guard method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20180110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |