CN106533243A - Two-way charging inverter circuit of electric automobile and automobile - Google Patents
Two-way charging inverter circuit of electric automobile and automobile Download PDFInfo
- Publication number
- CN106533243A CN106533243A CN201710025043.9A CN201710025043A CN106533243A CN 106533243 A CN106533243 A CN 106533243A CN 201710025043 A CN201710025043 A CN 201710025043A CN 106533243 A CN106533243 A CN 106533243A
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- igbt
- phase
- branch road
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- 238000004804 winding Methods 0.000 claims abstract description 60
- 239000003990 capacitor Substances 0.000 claims abstract description 10
- 230000036772 blood pressure Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 241000208340 Araliaceae Species 0.000 claims 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 claims 1
- 235000003140 Panax quinquefolius Nutrition 0.000 claims 1
- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/66—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal
- H02M7/68—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters
- H02M7/72—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/797—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1582—Buck-boost converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides a bidirectional charging inverter circuit of an electric automobile and the automobile. Wherein, this electric automobile's two-way inverter circuit that charges includes: a three-phase rectifier-inverter bridge, the three-phase rectifier-inverter bridge comprising: the first branch circuit, the second branch circuit and the third branch circuit are connected in parallel; a bus capacitor connected in parallel with the first branch; a boost-buck circuit, the boost-buck circuit comprising: a fourth branch and a fifth branch connected in parallel with the first branch; the fourth branch is connected with a first IGBT and a second IGBT in series, and the fifth branch is connected with a first capacitor; and the positive electrode of the battery is connected to the first end of the first winding coil in the three-phase driving motor of the electric automobile, and the second end of the first winding coil is connected between the first IGBT and the second IGBT. According to the technical scheme, the stator winding of the three-phase driving motor is used as a filter inductor in the voltage boosting-reducing circuit, and the filter inductor is cooled by water cooling of the three-phase driving motor.
Description
Technical field
The present invention relates to automobile technical field, more particularly to a kind of two-way charging inversion circuit and automobile of electric automobile.
Background technology
In two-way inversion discharge and recharge project, due to when feeding to threephase load or electrical network, need by cell voltage from
300-450V or so is lifted to more than 540 volts, needs to be boosted by booster circuit (i.e. BOOST circuits)；In three phase network
When being charged to battery, need for busbar voltage cell voltage 300-450V or so to be dropped to from more than 540 volts, need by drop
Volt circuit (i.e. BUCK circuits) carries out blood pressure lowering.General booster circuit and reduction voltage circuit be same circuit structure (hereinafter referred to as boosting-
Reduction voltage circuit), simply in different mode of operations, play different effects.Wherein, voltage boosting-reducing circuit is typically by two
IGBT, a filter inductance and an electric capacity composition, wherein the filter inductance is used as the indispensable important device of charging and discharging
Part, needs with larger pressure voltage (i.e. high tension apparatus) and resistance to flow valuve (as charging and discharging currents are larger), so volume is larger,
Also need to water-cooled to be radiated, in the prior art, be that filter inductance is provided with special water cooling equipment, do not only take up larger sky
Between, and it is relatively costly.
The content of the invention
The two-way charging inversion circuit and automobile of a kind of electric automobile are embodiments provided, to solve prior art
Filter inductance in middle voltage boosting-reducing circuit takes up room greatly, and the problem of required high cost.
In order to solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：
According to the one side of the embodiment of the present invention, there is provided a kind of two-way charging inversion circuit of electric automobile, including：
Three phase rectifier-inverter bridge, the three phase rectifier-inverter bridge include：Tie point parallel with one another, the second branch road and
3rd branch road, the tie point, second branch road and the 3rd branch road are in series with two IGBT respectively, described first
Road, second branch road and the 3rd branch road are corresponded with three articles of phase lines of three-phase alternating current respectively, and three phase lines
Binding post is respectively connecting between two IGBT of correspondence branch road；
The bus capacitor in parallel with the tie point；
Voltage boosting-reducing circuit, the voltage boosting-reducing circuit include：Fourth branch road in parallel with the tie point and
Five branch roads；Wherein, an IGBT and the 2nd IGBT is in series with the 4th branch road, be connected with the first electric capacity on the 5th branch road；
Battery, the positive pole of the battery are connected to first of the first winding coil in the three-phase drive motor of electric automobile
Hold, and the second end of first winding coil is connected between an IGBT and the 2nd IGBT.
Further, the positive pole of the battery is connected to the first end of first winding coil, institute by first switch
The second end for stating the first winding coil is connected between an IGBT and the 2nd IGBT by second switch.
Further, the three-phase drive motor also includes：Second winding coil and tertiary winding coil；
Wherein, the first end of first winding coil is also connected to the first phase of three-phase alternating current by the 3rd switch
Line；The first end of second winding coil is connected to the second phase line of three-phase alternating current by the 4th switch；Described 3rd around
The first end of group coil is connected to the third phase line of three-phase alternating current by the 5th switch；
Wherein, the second end of first winding coil, second winding coil and the tertiary winding coil is mutual
Connection, and the 6th switch is connected between the second end of the second end of first winding coil and second winding coil.
Further, the two-way charging inversion circuit of electric automobile also includes：Switch control module, respectively with described first
Switch, the second switch, the 3rd switch, the 4th switch, the 5th switch and the 6th switch electrical connection,
For on off state of the control to inductive switch, so that first coil winding participates in boosting or blood pressure lowering.
The two-way charging inversion circuit of electric automobile, the bus capacitor include：The second electric capacity being connected in series and the 3rd
Electric capacity.
The two-way charging inversion circuit of electric automobile, the first end of first winding coil and the positive pole of the battery it
Between be provided with a current sensor.
According to the other side of the embodiment of the present invention, there is provided a kind of automobile, including：Electric automobile as above
Two-way charging inversion circuit.
The invention has the beneficial effects as follows：
Above-mentioned technical proposal, the stator winding by the use of three-phase drive motor as the filter inductance in voltage boosting-reducing circuit,
Cooling for inductance is filtered using the water-cooled of three-phase drive motor, without the Special water cooling for arranging filter inductance in addition
Equipment, not only saves the number of devices for reducing circuit, reduces production cost, also reduce occupancy of the circuit to space.
Description of the drawings
Fig. 1 represents the two-way charging inversion circuit of electric automobile provided in an embodiment of the present invention.
Description of reference numerals：
1st, three phase rectifier-inverter bridge；2nd, bus capacitor；3rd, voltage boosting-reducing circuit；4th, battery；5th, three-phase drive motor；
101st, tie point；102nd, the second branch road；103rd, the 3rd branch road；201st, the second electric capacity；202nd, the 3rd electric capacity；301st, the 4th
Road；302nd, the 5th branch road；303rd, first switch；304th, second switch；305th, current sensor；3011st, an IGBT；3012、
2nd IGBT；3021st, the first electric capacity；501st, the first winding coil；502nd, the second winding coil；503rd, tertiary winding coil；6、
3rd switch；7th, the 4th switch；8th, the 5th switch；9th, the 6th switch.
Specific embodiment
The exemplary embodiment of the present invention is more fully described below with reference to accompanying drawings.Although the present invention is shown in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the present invention and should not be by embodiments set forth here
Limited.On the contrary, there is provided these embodiments are able to be best understood from the present invention, and can be by the scope of the present invention
Complete conveys to those skilled in the art.
According to the one side of the embodiment of the present invention, there is provided a kind of two-way charging inversion circuit of electric automobile, such as Fig. 1
It is shown, including：Three phase rectifier-inverter bridge 1, bus capacitor 2, voltage boosting-reducing circuit 3 and battery 4.
Wherein, for being to realize rectification when battery 4 charges in three phase network, three phase rectifier-inverter bridge 1 realizes that exchange becomes
Direct current；Be inversion to be realized when three phase network feeds in battery 4, that is, realize that direct current becomes exchange.Specifically, three phase rectifier-inverter bridge 1
Including：Tie point 101 parallel with one another, the second branch road 102 and the 3rd branch road 103, tie point 101,102 and of the second branch road
3rd branch road 103 is in series with two IGBT respectively, wherein, each IGBT includes：A switching tube being connected in parallel and one two
Pole pipe, switching tube can be metal-oxide-semiconductors.Further, tie point 101, the second branch road 102 and the 3rd branch road 103 are respectively with three
Three phase lines of cross streams electricity (i.e. three phase network) are corresponded, and the binding post of three phase lines is respectively connecting to correspondence branch road
Two IGBT between.Each branch road with it is specifically corresponding with any bar phase line of three-phase alternating current, can design according to the actual requirements, this
Inventive embodiments are not limited to this.
Wherein, voltage boosting-reducing circuit 3 is to realize blood pressure lowering when battery 4 charges in three phase network, is three phase network in battery 4
Boosting is realized during feed.Specifically, voltage boosting-reducing circuit 3 includes：Fourth branch road 301 and fiveth in parallel with tie point 101
Branch road 302.Wherein, an IGBT3011 and the 2nd IGBT 3012 is in series with the 4th branch road 301, is connected on the 5th branch road 302
There is the first electric capacity 3021.Each IGBT includes：A switching tube being connected in parallel and a diode, switching tube can be MOS
Pipe.
Wherein, the positive pole of battery 4 is connected to the first end of the first winding coil 501 in three-phase drive motor 5, and first
Second end of winding coil 501 is connected between an IGBT 3011 and the 2nd IGBT 3012.Three-phase drive described here
Motor 5 is the motor in electric automobile, and the first winding coil 501 is one group of stator winding in motor.
Wherein, bus capacitor 2 is in parallel with tie point 101.Specifically, bus capacitor 2 includes：Second for being connected in series is electric
Appearance 201 and the 3rd electric capacity 202.
The embodiment of the present invention by the use of three-phase drive motor 5 stator winding as the filtered electrical in voltage boosting-reducing circuit 3
Sense, is filtered cooling for inductance using the water-cooled of three-phase drive motor 5, without arranging the special of filter inductance in addition
Water cooling equipment, not only saves the number of devices for reducing circuit, reduces production cost, also reduce circuit and space is accounted for
With.
Further, the positive pole of battery 4 is connected to the first end of the first winding coil 501 by first switch 303, and first
Second end of winding coil 501 is connected between an IGBT 3011 and the 2nd IGBT 3012 by second switch 304.Rising
In pressure or pressure reduction, first switch 303 and second switch 304 are closed, and make the first winding coil 501 be linked into voltage boosting-reducing
In the middle of circuit 3, boosted or blood pressure lowering.
Further, three-phase drive motor 5 also includes：Second winding coil 502 and tertiary winding coil 503.
Wherein, the first end of the first winding coil 501 is also connected to the first phase of three-phase alternating current by the 3rd switch 6
Line, the first end of the second winding coil 502 are connected to the second phase line of three-phase alternating current, tertiary winding line by the 4th switch 7
The first end of circle 503 is connected to the third phase line of three-phase alternating current by the 5th switch 8.Additionally, the first winding coil 501,
Second end of two winding coils 502 and tertiary winding coil 503 is connected with each other, and the second end of the first winding coil 501 and the
The 6th switch 99 is connected between second end of two winding coils 502.
In boosting or blood pressure lowering, first switch 303 and second switch 304 are closed, the 6, the 4th switch the 7, the 5th of the 3rd switch
Switch 8 and the 6th switch 9 disconnect, so that the first winding coil 501 is linked in the middle of voltage boosting-reducing circuit 3, is boosted or are dropped
Pressure.
Further, the two-way charging inversion circuit of electric automobile also includes：Switch control module.
The switch control module switchs the 7, the 5th with first switch 303, the switch of second switch the 304, the 3rd the 6, the 4th respectively
Switch 8 and the 6th switch 9 are electrically connected, on off state of the control to inductive switch, with boosting or blood pressure lowering, so that First Line
Circle winding is linked in the middle of voltage boosting-reducing circuit 3, is boosted or blood pressure lowering.
Further, a current sensor is provided between the positive pole of the first end and battery 4 of the first winding coil 501
305.The current sensor 305 can automatic detection and show electric current, facilitate personnel's watching and monitoring to electric current.
In sum, the two-way charging inversion circuit of electric automobile provided in an embodiment of the present invention, using three-phase drive electricity
The stator winding of machine 5 is filtered electricity using the water-cooled of three-phase drive motor 5 as the filter inductance in voltage boosting-reducing circuit 3
Cooling for sense, without the Special water cooling equipment for arranging filter inductance in addition, not only saves the device count for reducing circuit
Amount, reduces production cost, also reduces occupancy of the circuit to space.
According to the other side of the embodiment of the present invention, there is provided a kind of automobile, including：Electric automobile as above
Two-way charging inversion circuit.
Two-way charging inversion circuit in automobile provided in an embodiment of the present invention, using three-phase drive motor 5 stator around
Group is filtered the cooling drop of inductance using the water-cooled of three-phase drive motor 5 as the filter inductance in voltage boosting-reducing circuit 3
Temperature, without the Special water cooling equipment for arranging filter inductance in addition, not only saves the number of devices for reducing circuit, reduces life
Cost is produced, occupancy of the circuit to space is also reduced.
Above-described is the preferred embodiment of the present invention, it should be pointed out that for the ordinary person of the art comes
Say, some improvements and modifications can also be made under the premise of without departing from principle of the present invention, and these improvements and modifications also exist
In protection scope of the present invention.
Claims (7)
1. the two-way charging inversion circuit of a kind of electric automobile, it is characterised in that include：
Three phase rectifier-inverter bridge, the three phase rectifier-inverter bridge include：Tie point parallel with one another, the second branch road and the 3rd
Branch road, the tie point, second branch road and the 3rd branch road are in series with two IGBT respectively, the tie point,
Second branch road and the 3rd branch road are corresponded with three articles of phase lines of three-phase alternating current respectively, and the wiring of three phase lines
Terminal is respectively connecting between two IGBT of correspondence branch road；
The bus capacitor in parallel with the tie point；
Voltage boosting-reducing circuit, the voltage boosting-reducing circuit include：Fourth branch road in parallel with the tie point and the 5th
Road；Wherein, an IGBT and the 2nd IGBT is in series with the 4th branch road, be connected with the first electric capacity on the 5th branch road；
Battery, the positive pole of the battery are connected to the first end of the first winding coil in the three-phase drive motor of electric automobile,
And the second end of first winding coil is connected between an IGBT and the 2nd IGBT.
2. the two-way charging inversion circuit of electric automobile according to claim 1, it is characterised in that the positive pole of the battery
The first end of first winding coil is connected to by first switch, the second end of first winding coil is opened by second
Connection is connected between an IGBT and the 2nd IGBT.
3. the two-way charging inversion circuit of electric automobile according to claim 2, it is characterised in that the three-phase drive electricity
Machine also includes：Second winding coil and tertiary winding coil；
Wherein, the first end of first winding coil is also connected to the first phase line of three-phase alternating current by the 3rd switch；Institute
The first end for stating the second winding coil is connected to the second phase line of three-phase alternating current by the 4th switch；The tertiary winding coil
First end the third phase line of three-phase alternating current is connected to by the 5th switch；
Wherein, the second end of first winding coil, second winding coil and the tertiary winding coil is connected with each other,
And the 6th switch is connected between the second end of the second end of first winding coil and second winding coil.
4. the two-way charging inversion circuit of electric automobile according to claim 3, it is characterised in that also include：
Switch control module, respectively with the first switch, the second switch, the 3rd switch, the 4th switch, institute
The 5th switch and the described 6th switch electrical connection are stated, on off state of the control to inductive switch, so that first coil winding ginseng
With boosting or blood pressure lowering.
5. the two-way charging inversion circuit of electric automobile according to claim 1, it is characterised in that the bus capacitor bag
Include：The second electric capacity being connected in series and the 3rd electric capacity.
6. the two-way charging inversion circuit of electric automobile according to claim 1, it is characterised in that first winding wire
A current sensor is provided between the positive pole of the first end of circle and the battery.
7. a kind of automobile, it is characterised in that include：The two-way charging of the electric automobile as described in any one of claim 1 to 6 is inverse
Become circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710025043.9A CN106533243B (en) | 2017-01-13 | 2017-01-13 | Two-way charging inverter circuit of electric automobile and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710025043.9A CN106533243B (en) | 2017-01-13 | 2017-01-13 | Two-way charging inverter circuit of electric automobile and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106533243A true CN106533243A (en) | 2017-03-22 |
| CN106533243B CN106533243B (en) | 2019-03-05 |
Family
ID=58336966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710025043.9A Active CN106533243B (en) | 2017-01-13 | 2017-01-13 | Two-way charging inverter circuit of electric automobile and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106533243B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019025399A1 (en) * | 2017-08-03 | 2019-02-07 | Siemens Aktiengesellschaft | Electric drive device |
| WO2022083341A1 (en) * | 2020-10-23 | 2022-04-28 | Ningbo Geely Automobile Research & Development Co., Ltd. | Vehicle electrical system |
| WO2022127109A1 (en) * | 2020-12-14 | 2022-06-23 | 蔚来汽车科技(安徽)有限公司 | Voltage conversion device, electric drive system, and vehicle |
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| CN101505134A (en) * | 2008-01-11 | 2009-08-12 | 国立大学法人长冈技术科学大学 | Alternating current motor drive circuit and electric vehicle drive circuit |
| CN103269114A (en) * | 2013-05-24 | 2013-08-28 | 奇瑞汽车股份有限公司 | Bi-directional charging device and system |
| JP2014161142A (en) * | 2013-02-19 | 2014-09-04 | Nissan Motor Co Ltd | Charging device, charging method, and motor driving method |
| CN105576929A (en) * | 2015-12-25 | 2016-05-11 | 华中科技大学 | AC brushless electro-magnetic starter generator employing concentrated windings |
-
2017
- 2017-01-13 CN CN201710025043.9A patent/CN106533243B/en active Active
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|---|---|---|---|---|
| CN101505134A (en) * | 2008-01-11 | 2009-08-12 | 国立大学法人长冈技术科学大学 | Alternating current motor drive circuit and electric vehicle drive circuit |
| JP2014161142A (en) * | 2013-02-19 | 2014-09-04 | Nissan Motor Co Ltd | Charging device, charging method, and motor driving method |
| CN103269114A (en) * | 2013-05-24 | 2013-08-28 | 奇瑞汽车股份有限公司 | Bi-directional charging device and system |
| CN105576929A (en) * | 2015-12-25 | 2016-05-11 | 华中科技大学 | AC brushless electro-magnetic starter generator employing concentrated windings |
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| 孙鹤旭、张厚升: "电动汽车驱动一体化系统牵引模式下逆变器的开路容错控制策略", 《电测与仪表》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019025399A1 (en) * | 2017-08-03 | 2019-02-07 | Siemens Aktiengesellschaft | Electric drive device |
| WO2022083341A1 (en) * | 2020-10-23 | 2022-04-28 | Ningbo Geely Automobile Research & Development Co., Ltd. | Vehicle electrical system |
| WO2022127109A1 (en) * | 2020-12-14 | 2022-06-23 | 蔚来汽车科技(安徽)有限公司 | Voltage conversion device, electric drive system, and vehicle |
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| Publication number | Publication date |
|---|---|
| CN106533243B (en) | 2019-03-05 |
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