CN203278367U - Large power battery charging device capable of preventing reverse battery - Google Patents
Large power battery charging device capable of preventing reverse battery Download PDFInfo
- Publication number
- CN203278367U CN203278367U CN2013202316743U CN201320231674U CN203278367U CN 203278367 U CN203278367 U CN 203278367U CN 2013202316743 U CN2013202316743 U CN 2013202316743U CN 201320231674 U CN201320231674 U CN 201320231674U CN 203278367 U CN203278367 U CN 203278367U
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- control circuit
- counnter attack
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Abstract
The utility model relates to a large power battery charging device capable of preventing reverse battery. An output end of a rectifier unit is connected to a filter unit, an output positive end of the filter unit is connected with a switch capable of preventing current from flowing backwards and preventing reverse battery and a branch, the branch is in parallel connection with the switch and formed by serially connecting a resistor and a diode, the other end of the switch is connected with a sampling circuit, the sampling circuit is connected with a control circuit unit, the control circuit unit is connected with the switch, and the control circuit unit and the filter unit are ground. In the premise of very small power loss, whether the battery and a charging power supply are in right connection, non connection or reverse connection is identified by using the voltage across output terminals; compared with a semiconductor device, the power loss of a relay is greatly reduced; a relay switch can prevent electric arc due to current quickly flowing backwards and also prevent short circuit of the rectifier diode in case of reverse battery; and various accidents such as possible personnel electric shock and battery short circuit are avoided.
Description
Technical field
The utility model relates to the high power battery charging device that prevents the battery reversal connection of low-power consumption.
Background technology
High-power charge power supply is converted to constant or a change direct voltage with civil power, and charges to battery or other energy storage device according to voltage limit value and current limit that the Content of Communication adjustment of artificial setting or battery management system is exported.
Conventional charger is to prevent from burning out circuit to the inside output capacitance charging formation instantaneous large-current of charger suddenly at the unexpected moment battery that accesses of battery, and general meeting increases by one road output diode conduct in output prevent flowing backward device.Although this measure can prevent effectively that electric current from pouring in down a chimney, and has larger power loss.For avoiding following situation: (1) battery is not connected with charge power supply, and charge power supply output may be externally exposed, in case machine is opened the accident such as may cause that personnel get an electric shock; (2) charge power supply has been connected with battery and has been connected, but reverse polarity connection: the positive pole of battery is connected with the negative pole of charger output, the negative pole of battery is connected with the positive pole of charger, the voltage of battery can be recharged the rectifier diode short circuit of machine output, cause accident etc., generally can additionally increase semiconductor switch, cause system complex, and increase power loss and cost.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of high power battery charging device that prevents the battery reversal connection of low-power consumption is provided.
The purpose of this utility model is achieved through the following technical solutions:
prevent the high power battery charging device of battery reversal connection, characteristics are: comprise rectification unit, filter unit, anti-reverse switch is filled with in counnter attack, branch road, sample circuit and control circuit unit, the output of rectification unit is connected with filter unit, the output plus terminal of filter unit connects counnter attack and fills with anti-reverse switch and branch road, branch road and counnter attack are filled with anti-reverse switch and are in parallel, propping up route resistance and diode is composed in series, counnter attack is filled with the anti-reverse switch other end and is connected sample circuit, sample circuit connection control circuit unit, the control circuit unit is filled with anti-reverse switch with counnter attack and is connected, control circuit unit and filter unit ground connection.
Further, the above-mentioned high power battery charging device that prevents the battery reversal connection is characterized in that: described sample circuit is voltage detecting circuit.
Further, the above-mentioned high power battery charging device that prevents the battery reversal connection is characterized in that: it is relay that anti-reverse switch is filled with in described counnter attack.
The substantive distinguishing features that technical solutions of the utility model are outstanding and significant progressive being mainly reflected in:
Utilize to detect the voltage of output port, under the minimum prerequisite of power loss the identification battery be connected with charge power supply exact connect ion, do not connect and three kinds of situations of reversal connection, MCU takes three kinds of operations according to three kinds of situations; Counnter attack is filled with anti-reverse switch and is adopted mechanical contact switch (as relay), can significantly reduce power loss compared with semiconductor device; Relay switch can prevent that electric current from pouring in down a chimney fast and cause electric arc, can prevent that again in the situation of battery reversal connection, the output rectifier diode is by short circuit; The resistance of parallel branch prevents that electric current from recharging fast, can balance inside and outside voltage, guarantee can not cause electric arc when relay closes; Effectively prevent the various unexpected generations such as possible personnel's electric shock and battery short circuit.
Description of drawings
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Fig. 1: structural representation of the present utility model.
Embodiment
as shown in Figure 1, prevent the high power battery charging device of battery reversal connection, comprise rectification unit 1, filter unit 2, anti-reverse switch 3 is filled with in counnter attack, branch road 4, sample circuit 5 and control circuit unit 6, sample circuit 5 is voltage detecting circuit, it is relay that anti-reverse switch 3 is filled with in counnter attack, the output of rectification unit 1 is connected with filter unit 2, the output plus terminal of filter unit 2 connects counnter attack and fills with anti-reverse switch 3 and branch road 4, branch road 4 is filled with anti-reverse switch 3 with counnter attack and is in parallel, branch road 4 is composed in series by resistance and diode, counnter attack is filled with anti-reverse switch 3 other ends and is connected sample circuit 5, sample circuit 5 connects control circuit unit 6, anti-reverse switch 3 control connections are filled with counnter attack in control circuit unit 6, control counnter attack and fill with the folding of anti-reverse switch 3, control circuit unit 6 and filter unit 2 ground connection.
Rectification unit 1 becomes the impulse commutation of transformer output the voltage (or pulse) of forward; Filter unit 2 is filtered into direct voltage with the voltage after rectification; Anti-reverse switch 3 is filled with in counnter attack can prevent that electric current is because the reversal connection of outside energy storage device increases severely suddenly; Branch road 4 in parallel prevents energy storage device 7(battery together with anti-reverse switch 3 is filled with in counnter attack) current surge during reversal connection, and 7 forwards whens access of energy storage device due to the effect of resistance can Limited Current in power positive end flowing velocity from right to left, guarantee safety; The effect of sample circuit 5 is the voltage that detects anode, be that 7 accesses of timing explanation energy storage device are correct voltage being detected, voltage detected and for " zero ", energy storage device 7 reversal connections or not access (also can make control circuit unit 6 can detect simultaneously positive voltage or negative voltage, so can distinguish energy storage device 7 reversal connections or without connection) are described; Corresponding action is made according to the detection signal of sample circuit 5 in control circuit unit 6.
In energy storage device 7 accesses correctly, after control circuit unit 6 judgements were errorless, under stable state, counnter attack was filled with anti-reverse switch 3 and is opened, and power supply is given outside energy storage device 7 power supplies, and when the anti-reverse switch 3 of counnter attack filling was switch with mechanical contact, there was minimum excess loss in system.Energy storage device 7 does not connect or controls circuit unit 6 during Opposite direction connection according to judged result, and opening power output and the anti-reverse switch 3 of counnter attack filling, guarantee system safety.
when outside energy storage device 7(battery) when forward access charge power supply, the branch road 4 that diode and resistance are composed in series can reduce the speed of current flowing backwards, prevent impulse current, the voltage of battery detected at sample circuit 5 for delaying time a period of time just afterwards, wait for that relay switch two polygonal voltages open relay when in a basic balance, rush of current when the elimination relay is opened, detection branch can be with energy storage device 7(battery) voltage deliver to the sample port of control circuit unit 6, control circuit unit 6 detects energy storage device 7(battery) voltage after can report system, perhaps judge energy storage device 7(battery) have or not intact connection, make power supply output after confirming to connect, can prevent like this in the situation that energy storage device 7(battery) access open personnel's Danger Electric shock risk that output may cause and can be in advance and system validation energy storage device 7(battery) information of voltage.Because contact resistance and the conducting resistance of relay is significantly less than semiconductor switch, system's energy loss in running is minimum, has guaranteed the efficient of system.
Energy storage device 7(battery externally) during reversal connection access charge power supply, the possible short circuit that rectifier diode causes of can the cut-off battery currents flowing through of anti-reverse switch 3 and diode resistance series arm 4 is filled with in counnter attack, this moment, voltage detecting circuit can detect negative voltage, and control circuit unit 6 is careful and forbid relay closes and power supply output to the system battery misconnection with information reporting.
Adopt the circuit structure of innovation, utilize the voltage that detects output port, once identify three kinds of situations: battery does not connect, battery exact connect ion and battery incorrect link, and MCU takes three kinds of operations according to three kinds of situations; Anti-reverse switch 3 is filled with in counnter attack can adopt mechanical contact switch (as relay), can significantly reduce power loss compared with semiconductor device; Relay switch can prevent that electric current from pouring in down a chimney fast and cause electric arc, can prevent that again in the situation of battery reversal connection, the output rectifier diode is by short circuit.The resistance of parallel branch prevents that electric current from recharging fast, and still energy balance inside and outside voltage, guarantee can not cause electric arc when relay closes.
The utility model identify under the minimum prerequisite of power loss battery be connected with charge power supply exact connect ion, do not connect and three kinds of situations of reversal connection, prevent the various unexpected generations such as possible personnel's electric shock and battery short circuit, and realize that the prior confirmation battery information is to functions such as system report.
What need to understand is: the above is only preferred implementation of the present utility model; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. prevent the high power battery charging device of battery reversal connection, it is characterized in that: comprise rectification unit, filter unit, anti-reverse switch is filled with in counnter attack, branch road, sample circuit and control circuit unit, the output of rectification unit is connected with filter unit, the output plus terminal of filter unit connects counnter attack and fills with anti-reverse switch and branch road, branch road and counnter attack are filled with anti-reverse switch and are in parallel, propping up route resistance and diode is composed in series, counnter attack is filled with the anti-reverse switch other end and is connected sample circuit, sample circuit connection control circuit unit, the control circuit unit is filled with anti-reverse switch with counnter attack and is connected, control circuit unit and filter unit ground connection.
2. the high power battery charging device that prevents the battery reversal connection according to claim 1, it is characterized in that: described sample circuit is voltage detecting circuit.
3. the high power battery charging device that prevents the battery reversal connection according to claim 1 is characterized in that: it is relay that anti-reverse switch is filled with in described counnter attack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202316743U CN203278367U (en) | 2013-05-02 | 2013-05-02 | Large power battery charging device capable of preventing reverse battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202316743U CN203278367U (en) | 2013-05-02 | 2013-05-02 | Large power battery charging device capable of preventing reverse battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203278367U true CN203278367U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202316743U Expired - Fee Related CN203278367U (en) | 2013-05-02 | 2013-05-02 | Large power battery charging device capable of preventing reverse battery |
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| Country | Link |
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| CN (1) | CN203278367U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219776A (en) * | 2013-05-02 | 2013-07-24 | 安伏（苏州）汽车电源科技有限公司 | High-power battery charging device capable of preventing battery reversal |
| CN104124743A (en) * | 2014-07-25 | 2014-10-29 | 株洲南车时代电气股份有限公司 | Storage battery charging device |
| CN112684385A (en) * | 2020-12-14 | 2021-04-20 | 阳光电源股份有限公司 | Reverse connection preventing circuit and application device thereof |
-
2013
- 2013-05-02 CN CN2013202316743U patent/CN203278367U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219776A (en) * | 2013-05-02 | 2013-07-24 | 安伏（苏州）汽车电源科技有限公司 | High-power battery charging device capable of preventing battery reversal |
| CN104124743A (en) * | 2014-07-25 | 2014-10-29 | 株洲南车时代电气股份有限公司 | Storage battery charging device |
| CN104124743B (en) * | 2014-07-25 | 2017-01-11 | 株洲南车时代电气股份有限公司 | Storage battery charging device |
| CN112684385A (en) * | 2020-12-14 | 2021-04-20 | 阳光电源股份有限公司 | Reverse connection preventing circuit and application device thereof |
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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: 20131106 Termination date: 20150502 |
|
| EXPY | Termination of patent right or utility model |