CN205811622U - A kind of charger - Google Patents
A kind of charger Download PDFInfo
- Publication number
- CN205811622U CN205811622U CN201620764949.3U CN201620764949U CN205811622U CN 205811622 U CN205811622 U CN 205811622U CN 201620764949 U CN201620764949 U CN 201620764949U CN 205811622 U CN205811622 U CN 205811622U
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- China
- Prior art keywords
- charging
- cell voltage
- automatic
- battery
- value
- 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.)
- Withdrawn - After Issue
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
This utility model relates to a kind of charger, it is internally provided with automatic voltage regulator and automatic current regulator at converter, when judging that cell voltage value of feedback is not reaching to first threshold, automatic voltage regulator output the first instruction, order about automatic current regulator output reach or close to the maximum charging current allowed, battery charging be controlled；When judging cell voltage value of feedback to reach first threshold and to be not reaching to cell voltage setting value, automatic voltage regulator output the second instruction, order about the automatic current regulator output charging current less than maximum charging current numerical value, battery charging is controlled.This utility model adds automatic voltage regulator in charger body, effectively eliminates the error of output voltage.And when it each judges that cell voltage value of feedback exceedes cell voltage setting value, automatic voltage regulator or peripheral control unit can control battery respectively and stop charging, it is achieved duplicate protection, safer.
Description
Technical field
This utility model relates to control technology of charging, and particularly to a kind of charger, the battery making the equipment such as electric motor car can
To realize the charging rapidly of converter mode.
Background technology
In the converter mode charger rapidly of electric motor car, control mode so far is that an applied current controls to come
Management export voltage.Although the cell voltage that electric current controls when can charge rapidly but be fully charged has error, even overcharge
The danger of electricity.
At present, it is usually and peripheral control unit is set outside charger body rapidly, the one of which of this peripheral control unit
Function is by receiving the actually detected cell voltage arrived, and when cell voltage reaches setting value, controls rapidly in charger
The automatic current regulator (ACR) that portion is arranged stops battery and continues charging.But, if occur this peripheral control unit malfunctioning or
Idle situation, battery will charge always, causes overcharging, and there is serious potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of charger, the charging rapidly of converter mode is carried out Control of Voltage and
Electric current controls so that cell voltage time fully charged does not has error, and can realize dual stopping charge protection, effectively prevents electricity
Pond overcharge.
In order to achieve the above object, the technical solution of the utility model is to provide a kind of charger, sets inside converter
It is equipped with:
Charging circuit, it is electrically connected between main power source and battery to be charged；
Automatic voltage regulator, the charging voltage for battery charging is controlled；Described automatic voltage regulator defeated
Enter signal packet to contain: the cell voltage setting value provided it outside converter, and actually measured at charging circuit or battery
Cell voltage value of feedback；The output signal of described automatic voltage regulator is the setting charging current value as control instruction；
Automatic current regulator, the charging current for battery charging is controlled；Described automatic current regulator defeated
Enter signal packet to contain: the output signal of described automatic voltage regulator, and charging actually measured at charging circuit or battery
Current feedback values；The output signal of described automatic current regulator, is sent to the charging current of described charging circuit.
Preferably, described automatic voltage regulator exports to the control instruction of automatic current regulator, is following any
One:
Described control instruction is when cell voltage value of feedback is not reaching to the first threshold set, and orders about automatic current and adjusts
Joint device output reaches or instructs close to the first of the maximum charging current allowed；
Described control instruction is to reach first threshold in cell voltage value of feedback and be not reaching to the electricity more than first threshold
During cell voltage setting value, order about the second finger of the automatic current regulator output charging current less than maximum charging current numerical value
Order；
Described control instruction is when cell voltage value of feedback meets or exceeds cell voltage setting value, orders about automatic current
Actuator stops the 3rd instruction of output charging current.
Preferably, outside described converter, it is further provided with peripheral control unit, the input signal bag of this peripheral control unit
Contain: described cell voltage setting value, and cell voltage value of feedback actually measured at charging circuit or battery；
The output signal of described peripheral control unit is included in cell voltage value of feedback and meets or exceeds cell voltage setting value
Time, order about described automatic current regulator and stop the 4th instruction of output charging current.
Preferably, being internally provided with vector control unit at converter, it receives the output of described automatic current regulator
Charging current, forms corresponding control signal vector and sends three be connected with this vector control unit to described charging circuit
The grid of pole pipe.
Preferably, described charger is the charger that the battery to electric motor car is charged.
Compared with prior art, charger described in the utility model, have an advantage in that: this utility model is by filling rapidly
Electrical equipment main body adds automatic voltage regulator, eliminates the error of output voltage.It is different from and is only entered by peripheral control unit at present
The mode of row overcharge management, is to prevent from overcharging by automatic voltage regulator in charger body rapidly in this utility model
Electricity, and retain the assist control of peripheral control unit further, it is achieved the duplicate protection that charging stops, safer.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of charger described in the utility model；
Fig. 2, Fig. 3 are to represent that in two of the present utility model examples of charging charging current is with showing that charge rate changes respectively
It is intended to.
Detailed description of the invention
As it is shown in figure 1, charger described in the utility model, AVR and ACR is set inside converter simultaneously, for defeated
The charging voltage and the charging current that go out are respectively controlled.This utility model can apply to the device batteries such as electric motor car rapidly
Charging controls.
Wherein, the cell voltage setting value of external setting-up and the cell voltage value of feedback of actually detected acquisition, respectively as
The input signal of AVR；The output signal of AVR is setting charging current value (as control instruction), with filling of actually detected acquisition
Electricity current feedback values, respectively as the input signal of ACR；Utilize the output signal of ACR, it is achieved the control to battery charging.
Such as, the output signal of ACR, further by various suitable control modes such as vector controlled, to audion
Grid is controlled；This audion being controlled, is in the charging circuit of the internal connection main power source of converter and battery
Among.
In described converter, the circuit that controls based on vector controlled or other modes, the charging circuit of main power source to battery,
To cell voltage or the circuit etc. of charging current acquisition testing, any side that can be considered appropriate by those skilled in the art
Formula designs, and does not enumerates.
In one concrete example of the control method of charger described in the utility model, comprise following control flow:
Cell voltage is set, cell voltage setting value is supplied to AVR；
After starting to charge up, AVR receives actually detected cell voltage value of feedback, it is judged that whether it reaches first threshold；Should
First threshold is less than certain magnitude of voltage of cell voltage setting value.
In different examples, the setting rule of first threshold, is such as all to specify different cell voltage setting values
Same suitable magnitude of voltage is as first threshold；Can also be that cell voltage setting value is reduced by certain percentage ratio set
The magnitude of voltage obtained is as first threshold, and percentage ratio corresponding to different cell voltage setting values may be prescribed as identical or not phase
With, etc..First threshold can be set by the device outside converter, make it send jointly to cell voltage setting value
AVR；First threshold can also be entered after receiving cell voltage setting value by AVR self based on the most built-in setting rule
Row sets.
At the charging initial stage, cell voltage is relatively low, i.e. before AVR judges that cell voltage value of feedback is not reaching to first threshold,
AVR sends the first instruction indicating this ACR to provide maximum charging current to ACR；
ACR, according to the first instruction received, the maximum charging current that output is allowed, carries out the control of battery charging；And
And, this ACR receives actually detected charging current value of feedback, it is judged that whether it reaches maximum charging current.
Along with cell voltage rises, when cell voltage value of feedback reaches first threshold, AVR sends to ACR and indicates this ACR
Reduce the second instruction of charging current；
ACR, according to the second instruction received, reduces the charging current of its output, continues executing with the control of battery charging.
When AVR is according to actually measured cell voltage value of feedback, it is judged that when it reaches cell voltage setting value, this AVR to
ACR output stops the 3rd instruction of charging, and ACR stops exporting charging current accordingly, controls battery and stops charging.
The control method of charger described in the utility model, has the stage of two chargings: from starting to charge up battery electricity
In first stage when pressure value of feedback reaches first threshold, control battery to reach or close to (permission) maximum charging current
It is charged；
Reach first threshold in cell voltage value of feedback and reach the second of cell voltage setting value to cell voltage value of feedback
In stage, control battery to be charged less than maximum charging current.In the second stage of some examples, it is also possible to be with little
Battery charging is carried out in maximum charging current and the charging current that is gradually reduced further.
Voltage when can be to be full of by battery is as described cell voltage setting value, then according to described above, at battery
Voltage feedback value reaches to control charging during setting value to be stopped.And in the example that other are different, it is also possible to it is to will be greater than first
Threshold value and less than be full of time cell voltage Second Threshold, as cell voltage setting value；First threshold can be will differ from
Another suitable magnitude of voltage is as Second Threshold, or cell voltage when will be filled with is reduced by another percentage ratio and obtains
Magnitude of voltage is as Second Threshold so that AVR is when judging that cell voltage value of feedback reaches Second Threshold, and no longer instruction ACR is with fall
The mode of low charging current carries out battery charging and controls, then can perform other any appropriate further after second stage
One or more charge modes, such as constant voltage, constant current, floating charge etc., until battery is full of.
As in figure 2 it is shown, as a example by 25kW charger, the charge rate that about 15 minutes i.e. can reach 30% from starting to charge up, then
Charge and can reach 80% charge rate in about 30 minutes.In this example using charge rate 0～70% scope as the first stage, make ACR
Under the instruction of AVR, carry out battery charging with output close to maximum charging current 60A control；After charge rate is more than 70%, ACR root
Instruction according to AVR so that it is the charging current of output reduces.
As it is shown on figure 3, as a example by 50kW charger, the charge rate that about 10 minutes i.e. can reach 30% from starting to charge up, then
Charge and can reach 80% charge rate in about 20 minutes.In this example using charge rate 0～40% scope as the first stage, make ACR
Under the instruction of AVR, carry out battery charging with output close to maximum charging current 120A control；After charge rate is more than 40%, ACR root
Instruction according to AVR so that it is the charging current of output reduces rapidly.
The peripheral control unit arranged outside charger body, is respectively provided with stopping charging with AVR described in the utility model
Function, it each can be malfunctioning the opposing party or in the case of quitting work, and performs to stop the control action of charging, prevents electricity
Pond overcharge.
In order to realize the assist control effect that charging is stopped by peripheral control unit, cell voltage is set by this utility model
Value and cell voltage value of feedback are simultaneously supplied to AVR and peripheral control unit；Assume that cell voltage value of feedback reaches setting value 500V,
If AVR normally works, then according to the above-mentioned control method of this utility model, AVR can indicate ACR to stop charging；If AVR is malfunctioning, outward
The cell voltage value of feedback that portion's controller receives has more than the possibility of 500V, and peripheral control unit such as surpasses with cell voltage value of feedback
Spend the persistent period of setting value or exceed the numerical value of setting value to set rule with cell voltage value of feedback, sentencing when rule meets
Disconnected AVR is malfunctioning, is i.e. directly indicated ACR to perform to stop the control of charging by peripheral control unit.Therefore, charging described in the utility model
The control method of device, can play duplicate protection to battery, effectively prevents overcharge, safer.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that
The description stated is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, for
Multiple amendment of the present utility model and replacement all will be apparent from.Therefore, protection domain of the present utility model should be by appended
Claim limit.
Claims (5)
1. a charger, it is characterised in that be internally provided with at converter:
Charging circuit, it is electrically connected between main power source and battery to be charged；
Automatic voltage regulator, the charging voltage for battery charging is controlled；The input letter of described automatic voltage regulator
Number comprise: the cell voltage setting value provided it outside converter, and electricity actually measured at charging circuit or battery
Cell voltage value of feedback；The output signal of described automatic voltage regulator is the setting charging current value as control instruction；
Automatic current regulator, the charging current for battery charging is controlled；The input letter of described automatic current regulator
Number comprise: the output signal of described automatic voltage regulator, and charging current actually measured at charging circuit or battery
Value of feedback；The output signal of described automatic current regulator, is sent to the charging current of described charging circuit.
2. charger as claimed in claim 1, it is characterised in that
Described automatic voltage regulator exports to the control instruction of automatic current regulator, is following any one:
Described control instruction is when cell voltage value of feedback is not reaching to the first threshold set, and orders about automatic current regulator
Output reaches or instructs close to the first of the maximum charging current allowed；
Described control instruction is to reach first threshold in cell voltage value of feedback and be not reaching to the battery electricity more than first threshold
During pressure setting value, order about the second instruction of the automatic current regulator output charging current less than maximum charging current numerical value；
Described control instruction is when cell voltage value of feedback meets or exceeds cell voltage setting value, orders about automatic current regulation
Device stops the 3rd instruction of output charging current.
3. charger as claimed in claim 2, it is characterised in that
Being further provided with peripheral control unit outside described converter, the input signal of this peripheral control unit comprises: described battery
Voltage setting value, and cell voltage value of feedback actually measured at charging circuit or battery；
The output signal of described peripheral control unit is included in cell voltage value of feedback when meeting or exceeding cell voltage setting value, drives
Described automatic current regulator is made to stop the 4th instruction of output charging current.
4. charger as claimed in claim 1, it is characterised in that
Being internally provided with vector control unit at converter, it receives the charging current of described automatic current regulator output, shape
Become corresponding control signal vector and be sent in described charging circuit the grid of the audion being connected with this vector control unit.
5. the charger as described in any one in claim 1 ~ 4, it is characterised in that
Described charger is the charger that the battery to electric motor car is charged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620764949.3U CN205811622U (en) | 2016-07-20 | 2016-07-20 | A kind of charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620764949.3U CN205811622U (en) | 2016-07-20 | 2016-07-20 | A kind of charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811622U true CN205811622U (en) | 2016-12-14 |
Family
ID=57508011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620764949.3U Withdrawn - After Issue CN205811622U (en) | 2016-07-20 | 2016-07-20 | A kind of charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811622U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026294A (en) * | 2016-07-20 | 2016-10-12 | 富士电机（中国）有限公司 | Charger and control method thereof |
| CN109474037A (en) * | 2018-12-07 | 2019-03-15 | 成都芯源系统有限公司 | Battery charging circuit and control method thereof |
-
2016
- 2016-07-20 CN CN201620764949.3U patent/CN205811622U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026294A (en) * | 2016-07-20 | 2016-10-12 | 富士电机（中国）有限公司 | Charger and control method thereof |
| CN106026294B (en) * | 2016-07-20 | 2019-09-06 | 富士电机（中国）有限公司 | A kind of charger and its control method |
| CN109474037A (en) * | 2018-12-07 | 2019-03-15 | 成都芯源系统有限公司 | Battery charging circuit and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20190906 |
|
| AV01 | Patent right actively abandoned |