CN205901599U - A integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile - Google Patents
A integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile Download PDFInfo
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- CN205901599U CN205901599U CN201620891920.1U CN201620891920U CN205901599U CN 205901599 U CN205901599 U CN 205901599U CN 201620891920 U CN201620891920 U CN 201620891920U CN 205901599 U CN205901599 U CN 205901599U
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- energy automobile
- transformer
- integrated connection
- winding
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Abstract
The utility model discloses an integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile belongs to the new energy automobile field. An integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile, the integrated connection in series -parallel electrical power generating system of planar transformer magnetism is LLC resonance converter, LLC resonance converter includes a controller of taking MOSFET pipe, resonance network, rectifier network and filter network, the resonance network includes two resonant capacitor, four catching diode and two transformers, whole flow net twine is including two sets of parallelly connected MOSFET pipe synchronous rectifier, filter network comprises parallelly connected filter capacitance. The utility model discloses reduced magnetic component's quantity, also heavy magnetic component's such as transformer height reduces as far as possible simultaneously, has also strengthened magnetic component's heat dissipation, has improved electrical power generating system efficiency, has reduced the car vibration risk, has improved adaptability and the reliability of power under complicated operating condition greatly.
Description
Technical field
The utility model belongs to new-energy automobile field, more particularly, to a kind of flat surface transformer magnetic for new-energy automobile
Integrated connection in series-parallel power-supply system.
Background technology
With the continuous improvement of China's socio-economic development level, the recoverable amount of automobile persistently rises.Therefore, greatly develop
This kind of new-energy automobile of electric automobile, can either accelerate fuel oil substitute, reduce motor vehicle exhaust emission, can ensure again energy security,
Promote energy-saving and emission-reduction, Air Pollution prevention and control, to promote China from automobile superpower march toward automobile power significant.Electronic vapour
Car is the power being advanced as automobile with electric energy, and it needs vehicle-mounted dc/dc power supply that the energy of lithium battery or lead-acid battery is converted
Become the electric energy that bus drive needs, drive automobile.Therefore vehicle power is the indispensable crucial equipment of electric automobile.Future car
The development trend carrying dc/dc should be Width funtion input 280vdc-880vdc, possess can communication function, and the enable control of isolation
Signal processed, Primary Component such as electrochemical capacitor, mos, rectifying tube, continued flow tube, the control chip of core must be all automotive grade, same to time-varying
Transformer design technique future necessarily flat-plate transformer mode.The power supply product being much similar to also is had on market, generally using just
Sharp active-clamp or the scheme of full-bridge phase shifting, these schemes have following point: poor to the adaptability of battery bag voltage, in battery
In fully charged and discharge process, battery bag output voltage can great changes will take place, typically can only adapt to 400-700v voltage defeated
Enter, therefore early stage product is commercially applied, problem that a lot of vehicle powers damage occurs, traces it to its cause and be all because vehicle
When start and stop, caused by the instantaneous pressure of generation punctures power supply mos pipe；Less efficient, particularly when the voltage of high-tension battery bag becomes
During change, efficiency change is larger, and during some low pressure inputs, efficiency is very low, and some high input voltage efficiency is very low；Reliability is relatively low, due to
The scheme of original power supply does not enable Sofe Switch, so stress in switching process for the power tube in power supply is very high, leads to work(
The reliability of rate pipe substantially reduces；High current heating problem is also wherein critically important problem, and heat ratio is relatively concentrated and do not allowed
Easy heat radiation.
Utility model content
The utility model is directed to the output high current heating of prior art, heating is concentrated, the bad inefficiency of radiating effect
A kind of defect with poor reliability, there is provided flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile, this
Utility model efficiently solves the problem of heat, improves power-supply system efficiency, reduces thump risk, greatly improves
The reliability of product.
The purpose of this utility model is achieved through the following technical solutions:
A kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile, described flat surface transformer magnetic collection
Bunchiness parallel power supply system be llc resonance converter, described llc resonance converter include a controller with mosfet pipe,
One resonant network, a rectifier network and filter network, described resonant network includes two resonant capacitances, four clampers two
Pole pipe and two transformers, described commutated network includes two groups of mosfet pipe synchronous rectifiers in parallel, described filter network by
Filter capacitor composition in parallel.
Preferably, described transformer is magnetic integrated planar transformers, and described transformer is magnetic integrated planar transformers, described
Magnetic integrated planar transformers include magnetic core, upper insulating epoxy plate, lower insulating epoxy plate, primary side winding coil, secondary side output winding
With Transformer Winding lead-out wire, described upper insulating epoxy plate, primary side winding coil, secondary side output winding and lower insulating epoxy plate according to
Secondary be arranged on described magnetic core, the lead that the lead at described primary side winding coil two ends exports winding with secondary side respectively is connected follow-up
Renew and stretch formation Transformer Winding lead-out wire.
Preferably, described two magnetic integrated transformer primary side series connection, connect after secondary side first parallel connection again.
Preferably, described transformer adopts plate process to make.
Preferably, described mosfet pipe synchronous rectifier includes three low pressure mosfet pipes in parallel.
Preferably, described magnetic core includes magnetic core and lower magnetic core, and described upper magnetic core and lower magnetic core are adsorbed one by gravitation
Rise, described upper magnetic core and lower magnetic core all include base, stem stem and outer shroud, described stem stem is located at the center of base end face, described outer
Ring is located at the edge of base end face, and described primary side winding coil, secondary side output winding and insulating epoxy plate are all enclosed within stem stem；Institute
State and the opening being in communication with the outside for coil is had on outer shroud.
Preferably, described side output winding is the winding wire plate that the coil being printed on pcb plate is formed.
Compared with prior art, the utility model at least has the advantage that
The utility model decreases the quantity of magnetic elements, simultaneously the height of the magnetic elements such as also heavy transformer
Reduce as far as possible, also enhance the radiating of magnetic elements, improve power-supply system efficiency, reduce thump risk, significantly
Improve adaptability under the conditions of complex work for the power supply and reliability.
Brief description
A kind of integrated connection in series-parallel of flat surface transformer magnetic for new-energy automobile of the utility model offer is provided
The circuit theory diagrams of power-supply system；
A kind of fractionation structural representation of magnetic integrated planar transformers of the utility model offer is provided；
A kind of overall structure diagram of magnetic integrated planar transformers of the utility model offer is provided.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples, and following examples are descriptive,
It is not determinate it is impossible to protection domain of the present utility model is limited with this.
In conjunction with Fig. 1, the utility model is illustrated, this circuit is a kind of flat surface transformer magnetic for new-energy automobile
The circuit of integrated connection in series-parallel power-supply system, this circuit be mainly llc resonance circuit, including a controller with mosfet pipe,
One resonant network, a rectifier network and filter network.
In conjunction with Fig. 2, the utility model is illustrated, the transformer used by the utility model is magnetic integrated planar transformers,
Including magnetic core 1, insulating epoxy plate 2, primary side winding coil 3, secondary side output winding 4, insulating epoxy plate 5, magnetic core 6 and transformer around
Group lead-out wire 11, magnetic core 1 and magnetic core 6 all include stem stem 8, base and outer shroud (base and outer shroud in figure are not shown)；Insulating epoxy
Plate 5, secondary side output winding 4, primary side winding coil 3, insulating epoxy plate 5 are once enclosed within to connect on stem stem 8 and stem stem 10 and are placed in magnetic
In core 1 and magnetic core 6；Insulating epoxy plate 2 and insulating epoxy plate 5 are separately positioned on magnetic core 1 and primary side winding coil 3, magnetic core 6 and secondary
Between side output winding 4；Secondary side output winding 4 is made using pcb manufacture craft, and winding coil is printed on pcb plate,
Form pcb winding wire plate in parallel.
In conjunction with Fig. 3, the utility model is illustrated, the overall structure being illustrated in figure 3 magnetic integrated planar transformers is illustrated
Figure, two two relative end faces of magnetic core stem stem are the contact surface of two magnetic cores, and two magnetic cores are connected by attraction, transformer
Winding leading-out wire 11 includes primary side winding lead-out wires of coil 7 and time side output winding leading-out wire 9, primary side winding lead-out wires of coil 7
Export winding leading-out wire 9 by secondary when exporting winding connection time.
Circuit theory in figure of the present utility model, the controller with mosfet pipe include two series connection mosfet pipe q6,
Q7, one end ground connection one termination high level, two mosfet pipe q6, q7 play on-off action.Resonant network includes two resonant capacitances
C139 and c140, four clamp diodes d24, d44, d32, d45 and two transformer t1 and t3, resonant capacitance 139 and c140
Connect with two mosfet pipe q6, q7 after series connection, four clamp diode d24 and d44, d32 and d45 are in parallel two-by-two then again
Series connection, connects with two mosfet pipe q6, q7 after series connection, between two resonant capacitances c139, c140 and series connection clamper two
Connect between pole pipe, primary side t1-a, t3-a series connection of two transformers t1, t3, secondary side t1-b and t3-b, t1-c and t3-c
In parallel.The utility model employs integrated transformer t1, the t3 of magnetic, and resonant inductance is integrated in flat surface transformer, so saves
About the area of pcb, reduce the volume of transformer and improve power density, clamp diode rise protection circuit work
With the connected mode of transformer solves the problems, such as that output current concentrates on greatly heat excessively concentration, a side during transformer
Face solves heat dissipation problem, on the other hand also improves the efficiency of power supply.Rectifier network includes two groups three and is connected in parallel
The rectifier of mosfet pipe composition, synchronous rectification, two groups of mosfet pipes in parallel be respectively q31, q32, q33 and q28, q29,
Q30, replaces traditional Schottky barrier diodes using low pressure mosfet pipe, greatly reduces the conduction voltage drop of outlet side and carry
High efficiency, this two groups are connected to secondary side t1-b, t3-b and t1-c of transformer, t3-c.Filter network includes multiple
The filter capacitor being connected in parallel, the parallel filtering such as c27, c25, c22, c170, c33, high frequency square wave is filtered into direct current output.Actual measurement
The whole machine of power supply rated voltage input, output quota under the conditions of, efficiency ＞ 96%.
The operation principle of the present embodiment is as follows:
Voltage manages resonant network by main power mosfet, flat surface transformer by secondary side export winding (t1b, t3b,
T1c, t3c) adopt pcb manufacture craft, reduce the thickness of output winding as far as possible, and adjust primary side winding line bag and time side pcb's
Distance, to adjust the leakage inductance required for transformer, thus adjusting llc resonant inductance, has thus reached resonant inductance and transformer
The integrated purpose of magnetic.Because output current is larger, by way of the former limit series connection of two transformers, the parallel connection of secondary side, will be defeated greatly
Go out electric current jointly to be exported by two transformers, so that heat is evenly distributed in two transformers, rectifier network is same in parallel
Step rectification greatly reduces outlet side conduction voltage drop, which also improves the efficiency of power supply, finally by filter network by high frequency
Square wave considers into direct current, then exports.
More than, only the utility model preferably specific embodiment, but the protection domain of utility model is not limited to
This, any those familiar with the art in the technical scope that the utility model discloses, the change that can readily occur in
Or replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with right
The protection domain of claim is defined.
Claims (7)
1. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile, described flat surface transformer magnetic is integrated
Connection in series-parallel power-supply system be llc resonance converter, described llc resonance converter include a controller with mosfet pipe, one
Individual resonant network, a rectifier network and filter network it is characterised in that described resonant network include two resonant capacitances,
Four clamp diodes and two transformers, described commutated network includes two groups of mosfet pipe synchronous rectifiers in parallel, described
Filter network is made up of filter capacitor in parallel.
2. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 1,
It is characterized in that, described transformer is magnetic integrated planar transformers, and described magnetic integrated planar transformers include magnetic core, upper dead ring
Oxygen plate, lower insulating epoxy plate, primary side winding coil, secondary side output winding and Transformer Winding lead-out wire, described upper insulating epoxy
Plate, primary side winding coil, secondary side output winding and lower insulating epoxy plate are successively set on described magnetic core, described primary side winding line
The lead that the lead at circle two ends exports winding with secondary side respectively is connected follow-up reneing and stretches formation Transformer Winding lead-out wire.
3. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 2,
It is characterized in that, described two magnetic integrated transformer primary side series connection, connect again after secondary side first parallel connection.
4. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 2,
It is characterized in that, described transformer adopts plate process to make.
5. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 1,
It is characterized in that, described mosfet pipe synchronous rectifier includes three low pressure mosfet pipes in parallel.
6. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 2,
It is characterized in that, described magnetic core includes magnetic core and lower magnetic core, and described upper magnetic core and lower magnetic core are attached together by gravitation, institute
State magnetic core and lower magnetic core all includes base, stem stem and outer shroud, described stem stem is located at the center of base end face, described outer shroud is located at
The edge of base end face, described primary side winding coil, secondary side output winding and insulating epoxy plate are all enclosed within stem stem；Described outer shroud
On have the opening being in communication with the outside for coil.
7. a kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile according to claim 2,
It is characterized in that, described time side output winding is the winding wire plate that the coil being printed on pcb plate is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891920.1U CN205901599U (en) | 2016-08-17 | 2016-08-17 | A integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620891920.1U CN205901599U (en) | 2016-08-17 | 2016-08-17 | A integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile |
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| Publication Number | Publication Date |
|---|---|
| CN205901599U true CN205901599U (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620891920.1U Expired - Fee Related CN205901599U (en) | 2016-08-17 | 2016-08-17 | A integrated connection in series -parallel electrical power generating system of planar transformer magnetism for new energy automobile |
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| CN (1) | CN205901599U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160496A (en) * | 2016-08-17 | 2016-11-23 | 深圳市鼎硕同邦科技有限公司 | A kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile |
-
2016
- 2016-08-17 CN CN201620891920.1U patent/CN205901599U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160496A (en) * | 2016-08-17 | 2016-11-23 | 深圳市鼎硕同邦科技有限公司 | A kind of flat surface transformer magnetic integrated connection in series-parallel power-supply system for new-energy automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200817 |