CN108511160A - Magnetic integration apparatus and apply its bidirectional charger - Google Patents
Magnetic integration apparatus and apply its bidirectional charger Download PDFInfo
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- CN108511160A CN108511160A CN201710110859.1A CN201710110859A CN108511160A CN 108511160 A CN108511160 A CN 108511160A CN 201710110859 A CN201710110859 A CN 201710110859A CN 108511160 A CN108511160 A CN 108511160A
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- 230000010354 integration Effects 0.000 title claims abstract description 50
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 56
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000011810 insulating material Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000004907 flux Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H02J7/022—
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- 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
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
Abstract
The present invention provides a kind of magnetic integration apparatus and applies its bidirectional charger.Magnetic integration apparatus includes：Magnetic core of transformer and inductance core；Magnetic core of transformer is bonded with the closure hollow-core construction that inductance core is same shape, magnetic core of transformer with inductance core, and the hollow of hollow and magnetic core of transformer of inductance core communicates；Wherein, inductance core includes：Primary inductance magnetic core and secondary inductance magnetic core placed side by side is equipped with gap between primary inductance magnetic core and secondary inductance magnetic core；The shared winding of primary is wrapped in after magnetic core of transformer is bonded with primary inductance magnetic core in the magnetic core of transformer magnetic pole Chong Die with primary inductance magnetic core；The shared winding of secondary is wrapped in after magnetic core of transformer is bonded with secondary inductance magnetic core in the magnetic core of transformer magnetic pole Chong Die with secondary inductance magnetic core.The present invention magnetic can be allowed integrated after inductance and transformer have smaller volume, weight and cost, installation, heat dissipation also more convenient.
Description
Technical field
The present invention relates to integrated magnetic fields, and in particular, to a kind of magnetic integration apparatus and applies its two-way charging
Machine.
Background technology
With the rapid development of global economy, growing energy consumption and environmental pollution increasingly cause the height of various countries
Degree is paid attention to.Wherein, the energy of automobile consumption is more and more, and the pollution that vehicle exhaust is brought is also an insoluble problem.
However, automobile is a part indispensable in people's normal life and work again, therefore automobile industry will face energy consumption
Excessive, transfer efficiency is relatively low and the severe situation of the exceeded welding of exhaust emissions.Since new-energy automobile can more be increased
Effect ground uses the energy, while pollutant emission is well below fuel-engined vehicle (zero-emission may be implemented in pure electric automobile completely), because
This development new-energy automobile becomes the option that national governments favor very much, launches respectively various encouragement policies and pushes new energy energetically
The development of automobile.In addition, electric energy is not limited as secondary energy sources by petroleum resources.Other than coal, nuclear energy, wind energy, water
Power, solar energy, tide, underground heat may serve to be converted into electric energy, therefore new-energy automobile will be in one period of human future
Optimal selection.
As the essential element of new-energy automobile, bidirectional charger is other than the function of having charger, moreover it is possible to by new energy
The electric energy of source automobile power cell storage is converted into alternating current to grid generation, receives the scheduling of power grid.Or other electricity
Device equipment is powered, and can also be that other new-energy automobiles charge under special circumstances.In general, in bidirectional charger circuit topology
It can include AC-DC converter and DC-DC converter, i.e., alternating current AC is first converted into the direct current DC of certain voltage range, then
Direct current DC is converted into the required direct current DC of power battery by electrical isolation device (being usually transformer) again, to battery
Charging.In rear class DC-DC converter, it would generally also contain the magnetic devices such as inductance, transformer, and these magnetic devices are in sky
Between on be independent, the volume occupied is larger.
Invention content
The main purpose of the embodiment of the present invention is to provide a kind of magnetic integration apparatus, to solve magnetic device in the prior art
Spatial volume that part occupies is big, weight weight, problem of high cost.
To achieve the goals above, the embodiment of the present invention provides a kind of magnetic integration apparatus, including：Magnetic core of transformer and inductance
Magnetic core；
Magnetic core of transformer is pasted with the closure hollow-core construction that inductance core is same shape, magnetic core of transformer with inductance core
It closes, the hollow of hollow and magnetic core of transformer of inductance core communicates；
Wherein, inductance core includes：Primary inductance magnetic core and secondary inductance magnetic core placed side by side, primary inductance magnetic core and
Gap is equipped between secondary inductance magnetic core；
The shared winding of primary is wrapped in magnetic core of transformer and primary after magnetic core of transformer is bonded with primary inductance magnetic core
In the magnetic pole of inductance core overlapping；
The shared winding of secondary is wrapped in magnetic core of transformer and secondary after magnetic core of transformer is bonded with secondary inductance magnetic core
In the magnetic pole of inductance core overlapping.
In wherein a kind of embodiment, magnetic core of transformer and inductance core are E-type magnetic core.
In wherein a kind of embodiment, magnetic core of transformer and inductance core are ring type magnetic core.
In wherein a kind of embodiment, further include：First insulating materials；
Wherein, the first insulating materials is filled in the gap between primary inductance magnetic core and secondary inductance magnetic core, with transformation
Device magnetic core is bonded.
In wherein a kind of embodiment, further include：
Second insulating materials is filled in the primary gap shared between winding and magnetic pole, and secondary shared winding and magnetic
Gap between column.
In wherein a kind of embodiment, further include：
Skeleton is the closure hollow-core construction of same shape with magnetic core of transformer；
After magnetic core of transformer (301) and inductance core fitting, it is filled in the closure hollow-core construction of skeleton.
In wherein a kind of embodiment, the material of magnetic core is ferrite, powder core, amorphous or silicon steel.
By means of above-mentioned technical proposal, the present invention provides a kind of magnetic integration apparatus, by the inductance in DC-DC converter
It is integrated with transformer, inductance, transformer is made to share magnetic core and winding, to ensure that spatially group is integral, but still
With discrete inductance, transformer performance having the same, inductance and transformer after making magnetic integrated have smaller volume, weight
And cost, installation, heat dissipation are also more convenient.
The embodiment of the present invention also provides a kind of bidirectional charger using magnetic integration apparatus, in the prior art double to solve
, weight weight big to charger volume, problem of high cost.
To achieve the goals above, the embodiment of the present invention provides a kind of bidirectional charger using magnetic integration apparatus, with electricity
Pond connects, including：
Recharge-discharge circuit, including：A.C.-D.C. converter, respectively with A.C.-D.C. converter (102) and battery
(104) DC-DC converter connected；
A.C.-D.C. converter is used in charge mode, and the alternating voltage that external ac power source provides is converted to directly
Galvanic electricity pressure, or in discharge mode, the DC voltage of DC-DC converter feedback is converted into alternating voltage；
Battery provides AC power in discharge mode for storing electric energy in charge mode to external；
Further include using the bidirectional charger of magnetic integration apparatus：Respectively with A.C.-D.C. converter and DC-dc conversion
The main control unit of device connection, for controlling recharge-discharge circuit charge or discharge；
DC-DC converter specifically includes：Primary full-bridge, the second capacitance, magnetic integration apparatus, third capacitance and secondary are complete
Bridge；
Magnetic integration apparatus includes：Magnetic core of transformer and inductance core；
Inductance core is pasted with the closure hollow-core construction that magnetic core of transformer is same shape, magnetic core of transformer with inductance core
It closes, the hollow of hollow and magnetic core of transformer of inductance core communicates；
Wherein, inductance core includes：Primary inductance magnetic core and secondary inductance magnetic core placed side by side, primary inductance magnetic core and
Gap is equipped between secondary inductance magnetic core；
The shared winding of primary is wrapped in magnetic core of transformer and primary after magnetic core of transformer is bonded with primary inductance magnetic core
In the magnetic pole of inductance core overlapping；
The shared winding of secondary is wrapped in magnetic core of transformer and secondary after magnetic core of transformer is bonded with secondary inductance magnetic core
In the magnetic pole of inductance core overlapping；
The first input end of primary full-bridge and the first output end of A.C.-D.C. converter connect, the second input terminal and friendship
The second output terminal of stream-DC converter connects, and the first output end connect with the first end of the second capacitance, second output terminal and first
The second end connection of the shared winding of grade；
The second end of second capacitance is connect with the first end of primary shared winding；
The first end of third capacitance is connect with the first end of secondary shared winding, the first input of second end and secondary full-bridge
End connection；
Second input terminal of secondary full-bridge is connect with the second end of secondary shared winding, the anode of the first output end and battery
The cathode of connection, second output terminal and battery connects.
In wherein a kind of embodiment, DC-DC converter further includes：
First capacitance, the first end of the first capacitance are connect with the first input end of primary full-bridge, second end and primary full-bridge
The second input terminal connection；
4th capacitance, the first end of the 4th capacitance are connect with the first input end of secondary full-bridge, second end and secondary full-bridge
The second input terminal connection.
In wherein a kind of embodiment, further include：
The charging interface being connected between external ac power source and A.C.-D.C. converter；
The communication interface being connect with main control unit receives for control instruction to be transferred to main control unit and comes from master control list
The control data of member；
Main control unit controls recharge-discharge circuit charge or discharge according to control instruction.
By means of above-mentioned technical proposal, the present invention by DC-DC converter transformer and inductance by share around
Group integrates, compared with prior art, using magnetic integration apparatus bidirectional charger have smaller volume, weight and at
This, improves the performance of vehicle indirectly.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without creative efforts, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is the structure chart of magnetic integration apparatus one of which embodiment in the embodiment of the present invention；
Fig. 2 is the structure chart of magnetic integration apparatus another kind embodiment in the embodiment of the present invention；
Fig. 3 is the circuit block diagram of the bidirectional charger and battery using magnetic integration apparatus in the embodiment of the present invention；
Fig. 4 is the circuit diagram of the DC-DC converter using magnetic integration apparatus in the embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The spatial volume that occupies in view of magnetic device in the prior art is big, weight weight, of high cost, and the embodiment of the present invention carries
For a kind of magnetic integration apparatus, by DC-DC converter inductance and transformer integrate, keep inductance, transformer total
With magnetic core and winding, to ensure that spatially group is integral, but still with discrete inductance, transformer performance having the same,
Inductance and transformer after making magnetic integrated have smaller volume, weight and cost, installation, heat dissipation also more convenient.
Fig. 1 is the structure chart of magnetic integration apparatus one of which embodiment in the embodiment of the present invention, and Fig. 2 is the embodiment of the present invention
The structure chart of middle magnetic integration apparatus another kind embodiment.As depicted in figs. 1 and 2, magnetic integration apparatus includes：Magnetic core of transformer 301
And inductance core；Magnetic core of transformer 301 and inductance core are the closure hollow-core construction of same shape, magnetic core of transformer 301 with
Inductance core is bonded, and the hollow of hollow and magnetic core of transformer 301 of inductance core communicates.Wherein the material of magnetic core can be iron oxygen
Body, powder core, amorphous or silicon steel.
Inductance core includes：Primary inductance magnetic core 302 and secondary inductance magnetic core 303 placed side by side, primary inductance magnetic core
Gap is equipped between 302 and secondary inductance magnetic core 303；The shared winding 305 of primary is in magnetic core of transformer 301 and primary inductance magnetic core
After 302 fittings, it is wrapped in the magnetic pole Chong Die with primary inductance magnetic core 302 of magnetic core of transformer 301；The shared winding 306 of secondary,
After magnetic core of transformer 301 is bonded with secondary inductance magnetic core 303, it is Chong Die with secondary inductance magnetic core 303 to be wrapped in magnetic core of transformer 301
Magnetic pole on.
When it is implemented, when high-frequency ac current flows through primary shared winding 305, can be produced on magnetic core of transformer 301
Change depressor magnetic flux phiT, transformer flux ΦTIt can be induced in secondary shares winding 306 by magnetic core of transformer 301
Electromotive force.High-frequency ac current can also generate primary inductance magnetic core magnetic flux phi on primary inductance magnetic core 302L1, in secondary electrical
Feel and generates secondary inductance magnetic core magnetic flux phi on magnetic core 303L2, and part electric energy is converted into magnetic field, it is stored in secondary inductance magnetic
In core 303.Similarly, when high-frequency ac current flows through secondary shared winding 306, transformation can be generated on magnetic core of transformer 301
Device magnetic flux phiT, transformer flux ΦTBy magnetic core of transformer 301 electromotive force can be induced in primary shares winding 305.
High-frequency ac current can also generate primary inductance magnetic core magnetic flux phi on primary inductance magnetic core 302L1, in secondary inductance magnetic core
Secondary inductance magnetic core magnetic flux phi is generated on 303L2, and part electric energy is converted into magnetic field, it is stored in primary inductance magnetic core 302
In.
In embodiment, magnetic core of transformer 301 and inductance core can be E-type magnetic core (such as EE types magnetic core or EI type magnetic cores
Deng), or ring type magnetic core.As shown in Figure 1, when magnetic core of transformer 301 and inductance core are EE type magnetic cores, primary shares
Winding 305 can be wrapped in magnetic core of transformer 301 and primary electrical after magnetic core of transformer 301 is bonded with primary inductance magnetic core 302
Feel on the center pillar of magnetic core 302 or on the side column of any overlapping；Secondary shares winding 306 can be in magnetic core of transformer 301 and secondary
After inductance core 303 is bonded, it is wrapped in magnetic core of transformer 301 and on the center pillar of secondary inductance magnetic core 303 or any overlapping side
On column.When primary shared winding 305 and secondary shared winding 306 are wrapped in the center pillar of magnetic core of transformer 301 and inductance core
When upper, magnetic core utilization rate highest.
As shown in Fig. 2, when magnetic core of transformer 301 and inductance core are ring type magnetic core, the shared winding of primary 305 can be
After magnetic core of transformer 301 is bonded with primary inductance magnetic core 302, it is Chong Die with primary inductance magnetic core 302 to be wrapped in magnetic core of transformer 301
Magnetic pole on side；Secondary shares winding 306 and can be wound after magnetic core of transformer 301 is bonded with secondary inductance magnetic core 303
Side in the magnetic pole Chong Die with secondary inductance magnetic core 303 of magnetic core of transformer 301.
In embodiment, magnetic integration apparatus can also include：First insulating materials 304；First insulating materials 304 is filled in just
In gap between grade inductance core 302 and secondary inductance magnetic core 303, it is bonded with magnetic core of transformer 301, avoids primary inductance magnetic
Core 302 and secondary inductance magnetic core 303 contact with each other, and reduce voltage conversion efficiency.When magnetic core of transformer 301 and inductance core are
When E-type magnetic core (such as EE types, EI types etc.), the first insulating materials 304 can be also used for support primary inductance magnetic core 302 or secondary electrical
Feel magnetic core 303.
In embodiment, magnetic integration apparatus can also include：Second insulating materials 307, be filled in primary shared winding 305 with
Gap between magnetic pole, and the secondary gap shared between winding 306 and magnetic pole, for shared winding and magnetic core to be isolated.
When it is implemented, in order to fix magnetic core of transformer 301 and inductance core, winding efficiency is improved, magnetic integration apparatus is also
May include：Skeleton (is not painted) in figure, is the closure hollow-core construction of same shape, transformer magnetic with magnetic core of transformer 301
After core 301 and inductance core fitting, it is filled in the closure hollow-core construction of skeleton.At this point, be wrapped in magnetic core of transformer 301 with just
Primary on grade inductance core 302 shares winding 305 and can also be wrapped on skeleton；It is wrapped in magnetic core of transformer 301 and secondary
Secondary on inductance core 303 shares winding 306 and can also be wrapped on symmetrical another skeleton.
To sum up, magnetic integration apparatus provided in an embodiment of the present invention, by the inductance and transformer collection in DC-DC converter
At, making inductance, transformer share magnetic core and winding together, to ensure that spatially group is integral, but still with discrete electricity
Sense, transformer performance having the same, inductance and transformer after making magnetic integrated have smaller volume, weight and cost, peace
Dress, heat dissipation are also more convenient.
, weight big in view of bidirectional charger volume in the prior art weighs, is of high cost, and the embodiment of the present invention provides one kind and answers
With the bidirectional charger of magnetic integration apparatus, by DC-DC converter transformer and inductance be integrated in by sharing winding
Together, compared with prior art, there is smaller volume, weight and cost using the bidirectional charger of magnetic integration apparatus, indirectly
Improve the performance of vehicle.
Fig. 3 is the circuit block diagram of the bidirectional charger using magnetic integration apparatus in the embodiment of the present invention.Wherein, in Fig. 3
Two-way block arrow is power flow, and unidirectional arrow is signal stream, and two-way thin arrow is communication stream.As shown in figure 3, using the integrated dress of magnetic
The bidirectional charger set is connect with battery (104), including：Recharge-discharge circuit, including：A.C.-D.C. converter 102, respectively
The DC-DC converter 103 being connect with A.C.-D.C. converter (102) and battery (104)；A.C.-D.C. converter 102
It is equivalent to rectifier in charge mode, the alternating voltage that external ac power source provides is converted into DC voltage.In electric discharge mould
It is equivalent to inverter when formula, the DC voltage of 103 feedback of DC-DC converter is converted into alternating voltage.Battery 104 is used for
Electric energy is stored in charge mode, AC power is provided to external in discharge mode.Using the two-way charging of magnetic integration apparatus
Machine further includes：The main control unit 105 being connect respectively with A.C.-D.C. converter 102 and DC-DC converter 103, for controlling
Recharge-discharge circuit charge or discharge processed.
Fig. 4 is the circuit diagram of the DC-DC converter using magnetic integration apparatus in the embodiment of the present invention.As shown in figure 4,
DC-DC converter 103 specifically includes：Primary full-bridge 202, the second capacitance 203, magnetic integration apparatus 204, third capacitance 205
With secondary full-bridge 206.
As shown in Figures 1 and 2, magnetic integration apparatus 204 includes：Magnetic core of transformer 301 and inductance core；Inductance core and change
Depressor magnetic core 301 is the closure hollow-core construction of same shape, and magnetic core of transformer 301 is bonded with inductance core, inductance core
It is hollow to be communicated with the hollow of magnetic core of transformer 301；Wherein, inductance core includes：Primary inductance magnetic core 302 placed side by side and time
Grade inductance core 303, is equipped with gap between primary inductance magnetic core 302 and secondary inductance magnetic core 303；The shared winding 305 of primary, twines
It is wound in the magnetic pole Chong Die with primary inductance magnetic core 302 of magnetic core of transformer 301；The shared winding 306 of secondary, is wrapped in transformer magnetic
In the magnetic pole Chong Die with secondary inductance magnetic core 303 of core 301.
As shown in figure 4, the first input end of primary full-bridge 202 and the first output end of A.C.-D.C. converter 102 connect
It connecing, the second input terminal is connect with the second output terminal of A.C.-D.C. converter 102, and the of the first output end and the second capacitance 203
One end connects, and second output terminal is connect with the second end of primary shared winding 305.The second end of second capacitance 203 is total with primary
It is connected with the first end of winding 305；The first end of third capacitance 205 is connect with the first end of secondary shared winding 306, second end
It is connect with the first input end of secondary full-bridge 206；Second input terminal of secondary full-bridge 206 and the second of secondary shared winding 306
End connection, the first output end are connect with the anode of battery 104, and second output terminal is connect with the cathode of battery 104.
When it is implemented, primary full-bridge 202 is by semiconductor switch in control bridge, it is in charge mode that DC voltage is inverse
Become alternating voltage, high-frequency ac voltage is rectified into DC voltage in discharge mode.Second capacitance 203 and third capacitance
205 be capacitance or resonant capacitance, for preventing transformer from having direct current biasing.Secondary full-bridge 206 in control bridge by partly leading
Body switchs, and high-frequency ac voltage is rectified into DC voltage in charge mode, charges to battery 104, will in discharge mode
DC voltage from battery 104 is reverse into high-frequency ac voltage.
Magnetic integration apparatus 204 can carry out electric energy isolation transmission, and following functions specifically may be implemented：
1. positive charge transformer function：It, can be in transformer magnetic when high-frequency ac current flows through primary shared winding 305
Transformer flux Φ is generated on core 301T, transformer flux ΦTBy magnetic core of transformer 301 winding 306 can be shared in secondary
In induce electromotive force, then by secondary full-bridge 206, high-frequency ac voltage is rectified into DC voltage, to battery 104 carry out
Charging.
2. positive charge inductive function：It, can be in primary inductance magnetic when high-frequency ac current flows through primary shared winding 305
Primary inductance magnetic core magnetic flux phi is generated on core 302L1, secondary inductance magnetic core magnetic flux is generated on secondary inductance magnetic core 303
ΦL2, and part electric energy is converted into magnetic field, it is stored in secondary inductance magnetic core 303.
3. reverse charging transformer function：Battery 104 generates high frequency alternating current by secondary full-bridge 206, which hands over
When time-dependent current flows through secondary shared winding 306, transformer flux Φ can be generated on magnetic core of transformer 301T, transformer flux
Measure ΦTElectromotive force can be induced in the shared winding of primary 305 by magnetic core of transformer 301, then by primary full-bridge 202,
High-frequency ac voltage is rectified into DC voltage, is powered to external ac power sources such as power grids through A.C.-D.C. converter 102.
4. reverse charging inductive function：It, can be in primary inductance magnetic when high-frequency ac current flows through secondary shared winding 306
Primary inductance magnetic core magnetic flux phi is generated on core 302L1, secondary inductance magnetic core magnetic flux is generated on secondary inductance magnetic core 303
ΦL2, and part electric energy is converted into magnetic field, it is stored in primary inductance magnetic core 302.
In embodiment, DC-DC converter 103 can also include：First capacitance 201, the first end of the first capacitance 201
It is connect with the first input end of primary full-bridge 202, second end is connect with the second input terminal of primary full-bridge 202；4th capacitance
207, the first end of the 4th capacitance 207 connect with the first input end of secondary full-bridge 206, and the of second end and secondary full-bridge 206
Two input terminals connect.Wherein, the first capacitance 201 is dc-link capacitance, and the 4th capacitance 207 is battery lateral capacitance, is used to straight
Flow voltage filter.First capacitance 201 and the 4th capacitance 207 can be electrolytic capacitor, membrane capacitance or ceramic disc capacitor etc..
In embodiment, can also include using the bidirectional charger of magnetic integration apparatus：It is connected to external ac power source and friendship
Charging interface 101 between stream-DC converter 102；The communication interface 106 being connect with main control unit 105 refers to for that will control
Order is transferred to main control unit 105, receives the control data from main control unit 105；Main control unit 105 is controlled according to control instruction
Recharge-discharge circuit charge or discharge.When it is implemented, control instruction of the main control unit foundation from communication interface 106, and
The voltage signal V and current signal I that A.C.-D.C. converter 102 and DC-DC converter 103 are fed back, pass through pulse width
(PWM, Pulse Width Modulation) is modulated to control recharge-discharge circuit charge or discharge.
To sum up, the bidirectional charger provided in an embodiment of the present invention using magnetic integration apparatus, will be in DC-DC converter
Transformer and inductance by share winding integrate, compared with prior art, using the two-way charging of magnetic integration apparatus
Machine has smaller volume, weight and cost, improves the performance of vehicle indirectly.In compared with the prior art discrete inductance and
Transformer, the embodiment of the present invention can enable the volume of two-way Vehicular charger decrease beyond 15%, and weight decrease beyond 10%, at
Originally it decrease beyond 5%.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of magnetic integration apparatus, which is characterized in that including：Magnetic core of transformer (301) and inductance core；
Magnetic core of transformer (301) and the closure hollow-core construction that inductance core is same shape, magnetic core of transformer (301) and inductance
Magnetic core is bonded, hollow the communicating of the hollow and magnetic core of transformer (301) of inductance core；
Wherein, inductance core includes：Primary inductance magnetic core (302) and secondary inductance magnetic core (303) placed side by side, primary inductance
Gap is equipped between magnetic core (302) and secondary inductance magnetic core (303)；
The shared winding (305) of primary is wrapped in transformer after magnetic core of transformer (301) is bonded with primary inductance magnetic core (302)
In magnetic core (301) magnetic pole Chong Die with primary inductance magnetic core (302)；
The shared winding (306) of secondary is wrapped in transformer after magnetic core of transformer (301) is bonded with secondary inductance magnetic core (303)
In magnetic core (301) magnetic pole Chong Die with secondary inductance magnetic core (303).
2. magnetic integration apparatus according to claim 1, which is characterized in that
Magnetic core of transformer (301) and inductance core are E-type magnetic core.
3. magnetic integration apparatus according to claim 1, which is characterized in that
Magnetic core of transformer (301) and inductance core are ring type magnetic core.
4. magnetic integration apparatus according to claim 2, which is characterized in that further include：First insulating materials (304)；
Wherein, the first insulating materials (304) is filled in the sky between primary inductance magnetic core (302) and secondary inductance magnetic core (303)
In gap, it is bonded with magnetic core of transformer (301).
5. magnetic integration apparatus according to claim 1, which is characterized in that further include：
Second insulating materials (307), is filled in primary shared gap of the winding (305) magnetic pole between, and it is secondary it is shared around
Gap of the group (306) between magnetic pole.
6. magnetic integration apparatus according to claim 1, which is characterized in that further include：
Skeleton is the closure hollow-core construction of same shape with magnetic core of transformer (301)；
After magnetic core of transformer (301) and inductance core fitting, it is filled in the closure hollow-core construction of skeleton.
7. magnetic integration apparatus according to claim 1, which is characterized in that
The material of magnetic core is ferrite, powder core, amorphous or silicon steel.
8. a kind of bidirectional charger using magnetic integration apparatus is connect with battery (104), which is characterized in that including：
Recharge-discharge circuit, including：A.C.-D.C. converter (102), respectively with A.C.-D.C. converter (102) and battery
(104) DC-DC converter (103) connected；
A.C.-D.C. converter (102) is used in charge mode, and the alternating voltage that external ac power source provides is converted to directly
Galvanic electricity pressure, or in discharge mode, the DC voltage of DC-DC converter (103) feedback is converted into alternating voltage；
Battery (104) provides AC power in discharge mode for storing electric energy in charge mode to external；
Further include using the bidirectional charger of magnetic integration apparatus：Become respectively with A.C.-D.C. converter (102) and DC-DC
The main control unit (105) of parallel operation (103) connection, for controlling recharge-discharge circuit charge or discharge；
DC-DC converter (103) specifically includes：Primary full-bridge (202), the second capacitance (203), magnetic integration apparatus (204),
Third capacitance (205) and secondary full-bridge (206)；
Magnetic integration apparatus (204) includes：Magnetic core of transformer (301) and inductance core；
Inductance core and the closure hollow-core construction that magnetic core of transformer (301) is same shape, magnetic core of transformer (301) and inductance
Magnetic core is bonded, hollow the communicating of the hollow and magnetic core of transformer (301) of inductance core；
Wherein, inductance core includes：Primary inductance magnetic core (302) and secondary inductance magnetic core (303) placed side by side, primary inductance
Gap is equipped between magnetic core (302) and secondary inductance magnetic core (303)；
The shared winding (305) of primary is wrapped in transformer after magnetic core of transformer (301) is bonded with primary inductance magnetic core (302)
In magnetic core (301) magnetic pole Chong Die with primary inductance magnetic core (302)；
The shared winding (306) of secondary is wrapped in transformer after magnetic core of transformer (301) is bonded with secondary inductance magnetic core (303)
In magnetic core (301) magnetic pole Chong Die with secondary inductance magnetic core (303)；
The first input end of primary full-bridge (202) is connect with the first output end of A.C.-D.C. converter (102), the second input
End is connect with the second output terminal of A.C.-D.C. converter (102), and the first end of the first output end and the second capacitance (203) connects
It connects, second output terminal is connect with the second end of primary shared winding (305)；
The second end of second capacitance (203) is connect with the first end of primary shared winding (305)；
The first end of third capacitance (205) is connect with the first end of secondary shared winding (306), second end and secondary full-bridge
(206) first input end connection；
Second input terminal of secondary full-bridge (206) is connect with the second end of secondary shared winding (306), the first output end and battery
(104) anode connection, second output terminal are connect with the cathode of battery (104).
9. the bidirectional charger according to claim 8 using magnetic integration apparatus, which is characterized in that DC-dc conversion
Device (103) further includes：
First capacitance (201), the first end of the first capacitance (201) are connect with the first input end of primary full-bridge (202), second end
It is connect with the second input terminal of primary full-bridge (202)；
4th capacitance (207), the first end of the 4th capacitance (207) are connect with the first input end of secondary full-bridge (206), second end
It is connect with the second input terminal of secondary full-bridge (206).
10. the bidirectional charger according to claim 8 using magnetic integration apparatus, which is characterized in that further include：
The charging interface (101) being connected between external ac power source and A.C.-D.C. converter (102)；
The communication interface (106) being connect with main control unit (105) is received for control instruction to be transferred to main control unit (105)
Control data from main control unit (105)；
Main control unit (105) controls recharge-discharge circuit charge or discharge according to control instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110859.1A CN108511160A (en) | 2017-02-28 | 2017-02-28 | Magnetic integration apparatus and apply its bidirectional charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110859.1A CN108511160A (en) | 2017-02-28 | 2017-02-28 | Magnetic integration apparatus and apply its bidirectional charger |
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| Publication Number | Publication Date |
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| CN108511160A true CN108511160A (en) | 2018-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710110859.1A Withdrawn CN108511160A (en) | 2017-02-28 | 2017-02-28 | Magnetic integration apparatus and apply its bidirectional charger |
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| Country | Link |
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| CN (1) | CN108511160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110062715A (en) * | 2019-01-11 | 2019-07-26 | 广东美信科技股份有限公司 | A kind of new-energy automobile mobile transformer and new-energy automobile |
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