CN205693354U - A kind of DC charging motor output reverse connection prevention protection circuit - Google Patents
A kind of DC charging motor output reverse connection prevention protection circuit Download PDFInfo
- Publication number
- CN205693354U CN205693354U CN201620557042.XU CN201620557042U CN205693354U CN 205693354 U CN205693354 U CN 205693354U CN 201620557042 U CN201620557042 U CN 201620557042U CN 205693354 U CN205693354 U CN 205693354U
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- China
- Prior art keywords
- electrically connected
- input
- outfan
- control unit
- protection circuit
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Abstract
The utility model discloses a kind of DC charging motor output reverse connection prevention protection circuit, including control unit and detector unit, the outfan of described detector unit is electrically connected with the input of control unit, the outfan of described control unit is electrically connected at the input of communication unit, the outfan of described control unit is electrically connected with the control coil of output normally opened relay, the input of described output normally opened relay is electrically connected with the DC output end of charger, the input of described communication unit is electrically connected with the outfan of BMS management system, the outfan of described control unit is electrically connected at the input of human-computer interaction interface, the outfan of described human-computer interaction interface is electrically connected with the input of alarm module.This DC charging motor output reverse connection prevention protection circuit, has simple in construction, the advantage of low cost, and collocation software carries out detecting control simultaneously, has intelligent alarm function, can use with popularity.
Description
Technical field
This utility model belongs to protection circuit equipment technical field, is specifically related to a kind of DC charging motor and exports anti-reverse guarantor
Protection circuit.
Background technology
Rechargeable battery is limited rechargeable battery of charging times.Charger is coordinated to use.The benefit of rechargeable battery is
Economy, environmental protection, electricity foot, be suitable for high-power, and the long-time electrical equipment used is (such as walkman, electronic toy etc., at present, major part
Rechargeable battery reverse connecting protection use common diode to realize, when system power is bigger, diode is more serious because of heating, will
The phenomenon often having diode to burn, causes equipment fault.Charge the battery according to battery polar correctness.Can stop and store
The anti-motor that fills of battery itself, also can prevent reverse connection of accumulator from damaging battery itself, be effectively protected charger and
Accumulator.Prevent battery from shortening service life because thinking reason.
Utility model content
The purpose of this utility model is to provide a kind of DC charging motor output reverse connection prevention protection circuit, to solve the above-mentioned back of the body
The problem proposed in scape technology.
For achieving the above object, this utility model provides following technical scheme: a kind of DC charging motor exports anti-reverse guarantor
Protection circuit, including control unit and detector unit, the outfan of described detector unit is electrically connected with the input of control unit,
The outfan of described control unit is electrically connected at the input of communication unit, and the outfan of described control unit is normally opened with output
The control coil of relay is electrically connected with, and the described input of output normally opened relay electrically connects with the DC output end of charger
Connecing, the input of described communication unit is electrically connected with the outfan of BMS management system, and the outfan of described control unit is electrical
Being connected to the input of human-computer interaction interface, the outfan of described human-computer interaction interface electrically connects with the input of alarm module
Connect.
Preferably, described detector unit includes anode detector unit and battery cathode detector unit, and anode is examined
Survey the outfan of unit and battery cathode detector unit all with the input electric connection of control unit.
Preferably, described output normally opened relay is that contact exports normally opened relay.
Preferably, described alarm module is phonetic alarm or buzzer.
Compared with prior art, the beneficial effects of the utility model are: this DC charging motor output reverse connection prevention protection circuit,
By the design of detector unit, it is possible to the accurately connection of both positive and negative polarity in detection battery charging process, just it is being prevented effectively from battery
The reversal connection of negative pole, damages normal use of battery；By human-computer interaction interface and the design of alarm module so that battery
During both positive and negative polarity reversal connection can and alarm；This DC charging motor output reverse connection prevention protection circuit, has simple in construction, low cost
Advantage, collocation software carries out detecting control simultaneously, has intelligent alarm function, can use with popularity.
Accompanying drawing explanation
Fig. 1 is modular structure schematic diagram of the present utility model；
Fig. 2 is circuit theory schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
This utility model provides a kind of DC charging motor output reverse connection prevention protection circuit as shown in Figure 1-2, including control
Unit processed and detector unit, the outfan of described detector unit is electrically connected with the input of control unit, described control unit
Outfan be electrically connected at the input of communication unit, the control of the outfan of described control unit and output normally opened relay
Coil is electrically connected with, and the input of described output normally opened relay is electrically connected with the DC output end of charger, described communication
The input of unit is electrically connected with the outfan of BMS management system, and the outfan of described control unit is electrically connected at man-machine
The input of interactive interface, the outfan of described human-computer interaction interface is electrically connected with the input of alarm module.
Operation principle: when this DC charging motor output reverse connection prevention protection circuit uses, when accumulator and charger connect in succession,
Battery management system (BMS) is shaken hands with control unit by the communication unit of charger, informs battery parameter (required electricity
Pressure, electric current, electricity).Charger proceeds by battery polar and judges, according to the electricity on two component piezoresistances of battery polar detection
Pressure value is given to control unit, and control unit judges according to the parameter arranged, and meets setting value then battery and connects correct, sends
Signal is opened in battery charging, controls relay combined floodgate and is charged work.When the battery polar of detection is contrary with setting value, then sentence
Breaking as battery reversal connection, relay does not closes a floodgate, and reports electric automobile or charger man-machine interaction by mistake by communication interface
Report to the police in interface.After treating that false solution is removed, start to charge up.Hardware only need to detect resistance, normally opened contact relay
For completing anti-reverse defencive function, simple in construction, low cost.Collocation software carries out detecting control simultaneously, has intelligent alarm merit
Energy.
Battery polar correctly connects detection process: before having detected due to battery polar, relay does not close a floodgate, now
VHD+ is connected with anode, and VHD-is connected with negative pole.Dump energy ADC_VHD+ detection according to battery (400V accumulator)
>=-2.76V is detected to 2.67V.ADC_VHD-.Deliver to control unit judge.Battery polar reversal connection detection process: with
Correct connection is contrary.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this
Utility model, although being described in detail this utility model with reference to previous embodiment, for those skilled in the art
For, the technical scheme described in foregoing embodiments still can be modified by it, or to wherein portion of techniques feature
Carry out equivalent, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (4)
1. a DC charging motor output reverse connection prevention protection circuit, including control unit and detector unit, described detector unit
Outfan is electrically connected with the input of control unit, and the outfan of described control unit is electrically connected at the input of communication unit
End, the outfan of described control unit is electrically connected with the control coil of output normally opened relay, described output normally opened relay
The DC output end of input and charger be electrically connected with, the output of the input of described communication unit and BMS management system
End is electrically connected with, and the outfan of described control unit is electrically connected at the input of human-computer interaction interface, described man-machine interaction circle
The outfan in face is electrically connected with the input of alarm module.
A kind of DC charging motor output reverse connection prevention protection circuit the most according to claim 1, it is characterised in that: described detection
Unit includes anode detector unit and battery cathode detector unit, anode detector unit and battery cathode detector unit
Outfan be all electrically connected with the input of control unit.
A kind of DC charging motor output reverse connection prevention protection circuit the most according to claim 1, it is characterised in that: described output
Normally opened relay is that contact exports normally opened relay.
A kind of DC charging motor output reverse connection prevention protection circuit the most according to claim 1, it is characterised in that: described warning
Module is phonetic alarm or buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557042.XU CN205693354U (en) | 2016-06-12 | 2016-06-12 | A kind of DC charging motor output reverse connection prevention protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620557042.XU CN205693354U (en) | 2016-06-12 | 2016-06-12 | A kind of DC charging motor output reverse connection prevention protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693354U true CN205693354U (en) | 2016-11-16 |
Family
ID=57261467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620557042.XU Expired - Fee Related CN205693354U (en) | 2016-06-12 | 2016-06-12 | A kind of DC charging motor output reverse connection prevention protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832685A (en) * | 2018-06-28 | 2018-11-16 | 苏州格远电气有限公司 | Wind power pitch-controlled system charging unit and its detection method |
-
2016
- 2016-06-12 CN CN201620557042.XU patent/CN205693354U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832685A (en) * | 2018-06-28 | 2018-11-16 | 苏州格远电气有限公司 | Wind power pitch-controlled system charging unit and its detection 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20210612 |