CN103269112A - Core of inverter-type anti-explosion charger - Google Patents
Core of inverter-type anti-explosion charger Download PDFInfo
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- CN103269112A CN103269112A CN2013100989315A CN201310098931A CN103269112A CN 103269112 A CN103269112 A CN 103269112A CN 2013100989315 A CN2013100989315 A CN 2013100989315A CN 201310098931 A CN201310098931 A CN 201310098931A CN 103269112 A CN103269112 A CN 103269112A
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Abstract
The invention discloses a core of an inverter-type anti-explosion charger. The core of the inverter-type anti-explosion charger comprises an input rectifier bridge, a filter capacitor assembly, a bridge-type inverter circuit, a transformer, a charging electrode, a main control unit and a heat pipe radiator, wherein the input rectifier bridge, the filter capacitor assembly, the bridge-type inverter circuit, the transformer, the charging electrode, the main control unit and the heat pipe radiator are connected in sequence; a drive unit is connected between the main control unit and the bridge-type inverter circuit; and the main control unit is also connected with a human-computer interaction interface. According to the core of the inverter-type anti-explosion charger disclosed by the invention, the charger is large in size, the power factor is low, harmonic waves generated to a power grid are high in content, an accumulator plate can be easily polarized and intelligent setting cannot be realized in the prior art are solved, and the digital control of a charging process is realized, so that a charging curve and characteristics of an accumulator are matched optimally, and the size and the weight of the transformer are reduced by the inverter technology. The core of the charger is connected with a shell of the anti-explosion charger by a flange plate on the heat pipe radiator.
Description
Technical field
The present invention relates to a kind of contravariant preventing bursting charging motor movement, belonged to digitlization charging control and explosion-proof heat dissipation technology field.
Background technology
In the factories and miness district of large industrial enterprise, the zone that explosion hazard is arranged, the transportation of material and product is generally finished by the traction electric locomotive transportation system of batteries power supply, and explosion-proof charging device is being born AC energy is converted to direct current, is the task of battery charging.
What use in the preventing bursting charging motor field at present is the rectifier transformer charger mostly, and this charger volume is big, heaviness, power factor is low, and the harmonic content that electrical network is produced is big, and charge technology falls behind, easily cause the accumulator plate polarization, and can't realize intelligent the setting.
Summary of the invention
Technical problem to be solved by this invention provides a kind of contravariant preventing bursting charging motor movement, realizes the Digital Control of charging process, makes the characteristic of charging curve and storage battery reach best coupling, reduces the volume and weight of transformer by inversion transformation technique.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of contravariant preventing bursting charging motor movement comprises the input rectifying bridge, the filter capacitor component that connect successively, bridge inverter main circuit, transformer, charging electrode, main control unit, heat-pipe radiator; Be connected with driver element between described main control unit and the bridge inverter main circuit, also be connected with human-computer interaction interface on the described main control unit; Described input rectifying bridge, bridge inverter main circuit, the output rectifier bridge dispels the heat by being bolted on the heat-pipe radiator.
Aforesaid contravariant preventing bursting charging motor movement, it is characterized in that: be connected with first current transformer and second current transformer between the analog quantity input of described main control unit and the input of transformer, be connected with voltage sensor between the analog quantity input of described main control unit and the charging electrode.
Aforesaid contravariant preventing bursting charging motor movement, it is characterized in that: also be connected with auxiliary control circuit on the digital quantity output of described main control unit, described auxiliary control circuit comprises first contactor and second contactor, the normally-closed contact of described first contactor and the discharge resistance in the filter capacitor component are in series, and the normally opened contact of described second contactor is connected with charging electrode.
Aforesaid contravariant preventing bursting charging motor movement, it is characterized in that: the output of described input rectifying bridge is connected with current-limiting resistance, and the normally opened contact of described first contactor is in parallel with described current-limiting resistance.
Aforesaid contravariant preventing bursting charging motor movement is characterized in that: described input rectifying bridge isolating switch is connected with the three-phase working power, also is connected with filter capacitor and piezo-resistance assembly between described isolating switch and the input rectifying bridge in turn.
Aforesaid contravariant preventing bursting charging motor movement is characterized in that: described bridge inverter main circuit is made up of four igbts.
The invention has the beneficial effects as follows:
1. the present invention adopts DSP as main control unit, can realize the digitlization setting of charge parameter, makes the receptible charge parameter of charging curve and storage battery reach optimum Match, eliminates the polarization phenomena of accumulator plate;
2. the present invention brings up to 20 kHz to the operating frequency of transformer by inversion transformation technique, the response time of charging current control is 50us, make the control of charge technology more accurate, the core section of transformer is long-pending to be inversely proportional to frequency of input voltage, the core section that the input of 20kHz high frequency voltage can reduce transformer amasss, thereby the volume of welding transformer and quality are reduced, compare with the rectifier transformer charger with capacity, volume can reduce 60%.
3. the present invention realizes charging current control by the commutation inversion mode, compares with the charger of traditional rectifier transformer mode, electrical network is impacted significantly reduce, the power factor height is little to the harmonic effects of electrical network.
4. the present invention can arrange the parameters of charger, check, can stored record to the fault of the main components and parts of charger, the maintainer just knows the fault point by checking record, this display screen also has battery charger post journal function, charge condition on duty is carried out record, and can keeping for a long time, so that later reference.
5. the present invention adopts the heat pipe heat radiation mode, and thermal resistance is little, does not have movable part, good heat dissipation, and long-term work is reliable and stable.
Description of drawings
Fig. 1 is the circuit connection diagram of contravariant preventing bursting charging motor movement of the present invention,
Fig. 2 is the module connection diagram of contravariant preventing bursting charging motor movement of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As depicted in figs. 1 and 2, a kind of contravariant preventing bursting charging motor movement comprises the input rectifying bridge U, the filter capacitor component 1 that connect successively, bridge inverter main circuit 2, transformer T, charging electrode, main control unit; Be connected with driver element between described main control unit and the bridge inverter main circuit 2, also be connected with human-computer interaction interface on the described main control unit, input rectifying bridge U isolating switch Q is connected with the three-phase working power, also be connected with filter capacitor 4 and piezo-resistance assembly 3 in turn between isolating switch Q and the input rectifying bridge U, wherein bridge inverter main circuit 2 is made up of four igbts.
Bridge inverter main circuit 2 output high-frequency pulsed width modulation ripples are to transformer T; The charging voltage of transformer T output suitable amplitude obtains DC charging voltage after rectifier diode D1 and D2 rectification, input to charging electrode; Main control unit output pwm pulse ripple is to driver element; The output of driver element links to each other with bridge inverter main circuit 2; Control parameter to main control unit by the man-machine interface input, the demonstration data of the main control unit of man-machine interface reception simultaneously output show, realized the parameters of charger is arranged, checks, can stored record to the fault of the main components and parts of charger, the maintainer just knows the fault point by checking record, and this display screen also has battery charger post journal function, and charge condition on duty is carried out record, and can keeping for a long time, so that later reference.
And by inversion transformation technique the operating frequency of transformer is brought up to 20 kHz, the response time of charging current control is 50us, make the control of charge technology more accurate, the core section of transformer is long-pending to be inversely proportional to frequency of input voltage, the core section that the input of 20kHz high frequency voltage can reduce transformer amasss, thereby the volume of welding transformer and quality are reduced, compare with the rectifier transformer charger with capacity, volume can reduce 60%.
Be connected with the first current transformer L1 and second current transformer L2 and the temperature sensor between the analog quantity input of main control unit and the input of transformer T, be connected with voltage sensor L3 between the analog quantity input of main control unit and the charging electrode, realize the collection to voltage, electric current and temperature parameter in the operating circuit respectively.In prescribed limit, whether both differences are used for detecting the inversion outlet side simultaneously earth fault to the real-time observation circuit input and output of current transformer L1, L2 electric current.L3 is voltage sensor, the voltage of feedback storage battery.
Wherein, main control unit is the master control unit executive control program with DSP, and main control unit outputs control signals to driver element according to the feedback current of output, the width that voltage produced and changed the pwm pulse ripple; Driver element adopts the special-purpose drive circuit of M57962 to drive insulated gate bipolar transistor module, has short-circuit protection function, prevents from damaging because of the uncertain generation of driving pulse level conducting simultaneously with igbt about the brachium pontis in the bridge inverter main circuit.
Also be connected with auxiliary control circuit on the digital quantity output of main control unit, described auxiliary control circuit comprises the first contactor K1 and the second contactor K2, discharge resistance R2 in the normally-closed contact of the described first contactor K1 and the filter capacitor component 1 is in series, bleed off fast by second resistance R 2 at the energy of shutting down or make during the protective circuit action the first filter capacitor C1 in the filter capacitor component 2 and the second filter capacitor C2 to store, so that the energy of avoiding when maintenance or power down the first filter capacitor C1 and the second filter capacitor C2 to build up in going up has not also been put; The normally opened contact of the second contactor K2 is connected with charging electrode, and as the protection switch that prevents reverse connection of accumulator, main control unit is detecting the correct back of battery polar K2 contactor closure.
The output of input rectifying bridge U is connected with current-limiting resistance R1, and the normally opened contact of the described first contactor K1 is in parallel with described current-limiting resistance R1.When system starts, lentamente the first filter capacitor C1 and the second filter capacitor C2 are charged by current-limiting resistance R1, when preventing from directly starting because the first filter capacitor C1 and the second filter capacitor C2 go up initial voltage is zero, cause the input rectifying bridge module to bear excessive rush of current and damage, when the voltage on the first filter capacitor C1 and the second filter capacitor C2 is charged to certain value, the 1st contactor K1 action, its contact is with current-limiting resistance R1 short circuit.Filter capacitor C1, C2 are used for the voltage after the rectification is carried out filtering, and the voltage that offers inverter bridge with assurance is the less direct voltage of ripple.Resistance R 3, R4 are parallel to filter capacitor C1, C2 two ends respectively, play all pressure effects, can all press to guarantee filter capacitor C1, C2.The 3rd filter capacitor C3 is used for suppressing in the igbt make and break process peaking voltage that the existence because of inductance in the circuit causes, guarantees that the primary power switch device igbt is not because bearing too high peaking voltage punch through damage.
Input rectifying bridge U isolating switch Q is connected with the three-phase working power, also is connected with filter capacitor 4 and piezo-resistance assembly 3 in turn between described isolating switch Q and the input rectifying bridge U, the overvoltage of the working power of releasing, protection circuitry.
The input rectifying bridge, igbt, the output rectifier bridge dispels the heat by being bolted on the heat-pipe radiator, the heat that power device is produced is transmitted to the explosion-proof casing outside, heat pipe heat radiation does not have mobilizable parts, and does not need the outer loop device, and long-term work is reliable and stable.
In sum, a kind of contravariant preventing bursting charging motor movement provided by the invention, the Digital Control of realization charging process makes the characteristic of charging curve and storage battery reach best coupling, reduces the volume and weight of transformer by inversion transformation technique.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (6)
1. a contravariant preventing bursting charging motor movement is characterized in that: comprise the input rectifying bridge U, the filter capacitor component (1) that connect successively, bridge inverter main circuit (2), transformer T, output rectifier bridge, charging electrode, main control unit, heat-pipe radiator; Described main control unit and bridge inverter main circuit are connected with driver element between (2), also are connected with human-computer interaction interface on the described main control unit; Described input rectifying bridge, bridge inverter main circuit, the output rectifier bridge dispels the heat by being bolted on the heat-pipe radiator.
2. contravariant preventing bursting charging motor movement according to claim 1, it is characterized in that: be connected with the first current transformer L1 and the second current transformer L2 between the analog quantity input of described main control unit and the input of transformer T, be connected with voltage sensor L3 between the analog quantity input of described main control unit and the charging electrode.
3. contravariant preventing bursting charging motor movement according to claim 1 and 2, it is characterized in that: also be connected with auxiliary control circuit on the digital quantity output of described main control unit, described auxiliary control circuit comprises the first contactor K1 and the second contactor K2, discharge resistance R2 in the normally-closed contact of the described first contactor K1 and the filter capacitor component (1) is in series, and the normally opened contact of the described second contactor K2 is connected with charging electrode.
4. contravariant preventing bursting charging motor movement according to claim 3, it is characterized in that: the output of described input rectifying bridge U is connected with current-limiting resistance R1, and the normally opened contact of the described first contactor K1 is in parallel with described current-limiting resistance R1.
5. contravariant preventing bursting charging motor movement according to claim 4, it is characterized in that: described input rectifying bridge U isolating switch Q is connected with the three-phase working power, also is connected with filter capacitor (4) and piezo-resistance assembly (3) between described isolating switch Q and the input rectifying bridge U in turn.
6. contravariant preventing bursting charging motor movement according to claim 5, it is characterized in that: described bridge inverter main circuit (2) is made up of four igbts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100989315A CN103269112A (en) | 2013-03-26 | 2013-03-26 | Core of inverter-type anti-explosion charger |
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| CN2013100989315A CN103269112A (en) | 2013-03-26 | 2013-03-26 | Core of inverter-type anti-explosion charger |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231030A (en) * | 2017-08-11 | 2017-10-03 | 安徽华凯新能源科技有限公司 | The new safe lithium battery group reminded online |
| CN107231033A (en) * | 2017-08-11 | 2017-10-03 | 安徽华凯新能源科技有限公司 | Novel power battery group based on charging conditioning |
| CN107257156A (en) * | 2017-08-11 | 2017-10-17 | 安徽华凯新能源科技有限公司 | Explosion-proof lithium battery group based on intelligent control |
| CN107276186A (en) * | 2017-08-11 | 2017-10-20 | 安徽华凯新能源科技有限公司 | The Vehicular charger that isolated charging curve is changed |
| CN107276187A (en) * | 2017-08-11 | 2017-10-20 | 安徽华凯新能源科技有限公司 | Based on the adaptive vehicle mounted dynamic battery group of charging curve |
| CN107294180A (en) * | 2017-08-11 | 2017-10-24 | 安徽华凯新能源科技有限公司 | The automatic protection lithium battery group controlled based on radio frequency identification |
| CN107444166A (en) * | 2017-08-15 | 2017-12-08 | 安徽华凯新能源科技有限公司 | Electri forklift power battery pack preventing bursting charging motor |
| CN107499160A (en) * | 2017-08-14 | 2017-12-22 | 安徽华凯新能源科技有限公司 | Explosion-proof type vehicle mounted electric fork truck charger |
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| JPH08340295A (en) * | 1995-06-14 | 1996-12-24 | Sharp Corp | Cordless telephone set |
| CN201499009U (en) * | 2009-09-07 | 2010-06-02 | 淮南市长安机电设备有限公司 | Flameproof inverter charger |
| CN203243101U (en) * | 2013-03-26 | 2013-10-16 | 苏州圆芯光机电科技有限公司 | Inverted explosion-proof charger core |
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2013
- 2013-03-26 CN CN2013100989315A patent/CN103269112A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08340295A (en) * | 1995-06-14 | 1996-12-24 | Sharp Corp | Cordless telephone set |
| CN201499009U (en) * | 2009-09-07 | 2010-06-02 | 淮南市长安机电设备有限公司 | Flameproof inverter charger |
| CN203243101U (en) * | 2013-03-26 | 2013-10-16 | 苏州圆芯光机电科技有限公司 | Inverted explosion-proof charger core |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231030A (en) * | 2017-08-11 | 2017-10-03 | 安徽华凯新能源科技有限公司 | The new safe lithium battery group reminded online |
| CN107231033A (en) * | 2017-08-11 | 2017-10-03 | 安徽华凯新能源科技有限公司 | Novel power battery group based on charging conditioning |
| CN107257156A (en) * | 2017-08-11 | 2017-10-17 | 安徽华凯新能源科技有限公司 | Explosion-proof lithium battery group based on intelligent control |
| CN107276186A (en) * | 2017-08-11 | 2017-10-20 | 安徽华凯新能源科技有限公司 | The Vehicular charger that isolated charging curve is changed |
| CN107276187A (en) * | 2017-08-11 | 2017-10-20 | 安徽华凯新能源科技有限公司 | Based on the adaptive vehicle mounted dynamic battery group of charging curve |
| CN107294180A (en) * | 2017-08-11 | 2017-10-24 | 安徽华凯新能源科技有限公司 | The automatic protection lithium battery group controlled based on radio frequency identification |
| CN107499160A (en) * | 2017-08-14 | 2017-12-22 | 安徽华凯新能源科技有限公司 | Explosion-proof type vehicle mounted electric fork truck charger |
| CN107444166A (en) * | 2017-08-15 | 2017-12-08 | 安徽华凯新能源科技有限公司 | Electri forklift power battery pack preventing bursting charging motor |
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Effective date of registration: 20140916 Address after: 322000, Zhejiang, Yiwu Province, No. 968 Xuefeng West Road, Beiyuan science and Technology Pioneer Park Science and technology building, A District, the first floor Applicant after: Yiwu Zhongke Electromechanical Equipment Co., Ltd. Applicant after: YIWU CENTER, SHENYANG INSTITUTE OF AUTOMATION CHINESE ACADEMY OF SCIENCES Applicant after: Shen Yang Automation Inst., Chinese Academy of Sciences Address before: 1 Building No. 625, Binhe Road, 215000 hi tech Zone, Jiangsu, Suzhou, 510 Applicant before: Suzhou Yuanxin Electromechanical Science & Technology Co., Ltd. |
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Application publication date: 20130828 |