CN109639130A - A kind of new-energy automobile and its On-Board Vehicle DC/DC Converter - Google Patents
A kind of new-energy automobile and its On-Board Vehicle DC/DC Converter Download PDFInfo
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- CN109639130A CN109639130A CN201910028524.4A CN201910028524A CN109639130A CN 109639130 A CN109639130 A CN 109639130A CN 201910028524 A CN201910028524 A CN 201910028524A CN 109639130 A CN109639130 A CN 109639130A
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- Prior art keywords
- copper bar
- side plate
- emi
- transformer
- connect
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 95
- 239000010949 copper Substances 0.000 claims abstract description 95
- 229910052802 copper Inorganic materials 0.000 claims abstract description 95
- 239000003292 glue Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 8
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 229910000906 Bronze Inorganic materials 0.000 claims description 2
- 239000010974 bronze Substances 0.000 claims description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 8
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 239000012782 phase change material Substances 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000007704 transition Effects 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
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- 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
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of On-Board Vehicle DC/DC Converters of new-energy automobile, including shell, the high input voltage connector being installed on shell, the EMI plate being connect with high input voltage connector, the primary side plate being connect with the copper bar of EMI plate, the transformer being connect with the output terminal of primary side plate, the secondary side plate being connect with the secondary side copper bar of transformer, the outputting inductance being all connected with the secondary side copper bar of secondary side plate and transformer, the EMI inductance being connect with the output terminal of outputting inductance, between transformer and secondary side plate, between transformer and outputting inductance, between secondary side plate and outputting inductance, copper bar switching is all made of between outputting inductance and EMI inductance.The On-Board Vehicle DC/DC Converter is powered to low-voltage electrical apparatus on vehicle, reduces the occupancy to the interior confined space, meets the flexibility of arrangement, cost is relatively low.The invention also discloses a kind of new-energy automobiles including above-mentioned On-Board Vehicle DC/DC Converter.
Description
Technical field
The present invention relates to new-energy automobile charging technique fields, more particularly to a kind of On-Board Vehicle DC/DC Converter.In addition, this
Invention further relates to a kind of new-energy automobile including above-mentioned On-Board Vehicle DC/DC Converter.
Background technique
As Global Environmental Problems become increasingly conspicuous, automobile industry transition and upgrade and motorized tide are attacked, using electric power
Equal new-energy automobiles are grown rapidly in China, and weight of the On-Board Vehicle DC/DC Converter as electric automobile power battery system
Component part is wanted, will keep powering when driving always, very high requirement is improved to its performance.
On-Board Vehicle DC/DC Converter is about a kind of vehicle-mounted DCDC power conversion module, as new-energy automobile power-supply system
Important component realizes and from high voltage power battery pack takes electricity, continual and steady low-voltage needed for being converted into, to on-board air conditioner,
The power supply such as power steering system and other ancillary equipments.
Existing monomer DCDC volume is larger, and heavy, and internal harness is more and mixed and disorderly, makes the difficulty on lineation side, transformer
With the radiating mode of IGBT is unreasonable that complete machine is caused to overheat, it is at high cost etc., can not meet the market demand.
In conclusion how to efficiently solve, On-Board Vehicle DC/DC Converter volume is larger and heavy, and internal harness is more and miscellaneous
Disorderly, the problems such as making the difficulty on lineation side, be current those skilled in the art's urgent problem.
Summary of the invention
The object of the present invention is to provide a kind of On-Board Vehicle DC/DC Converter, which supplies to low-voltage electrical apparatus on vehicle
Electricity reduces the occupancy to the interior confined space, meets the flexibility of arrangement, cost is relatively low；Another object of the present invention
It is to provide a kind of new-energy automobile including above-mentioned On-Board Vehicle DC/DC Converter.
In order to solve the above technical problems, the invention provides the following technical scheme:
A kind of On-Board Vehicle DC/DC Converter of new-energy automobile connects including shell, the high input voltage being installed on the shell
Connect device, the EMI plate connecting with the high input voltage connector, the primary side plate connecting with the copper bar of the EMI plate and the primary side
The transformer of the output terminal connection of plate, the secondary side plate being connect with the secondary side copper bar of the transformer and the secondary side plate and institute
The outputting inductance that the secondary side copper bar of transformer is all connected with, the EMI inductance connecting with the output terminal of the outputting inductance are stated, it is described
Between transformer and the secondary side plate, between the transformer and the outputting inductance, the secondary side plate and the outputting inductance
Between, copper bar switching is all made of between the outputting inductance and the EMI inductance.
Preferably, the EMI copper bar connecting with the outputting inductance and the copper bar connecting with the transformer secondary copper bar are equal
The included location nut that presses with positioning function, and through Wave crest Welding on the secondary side plate.
Preferably, the EMI plate is parallel with the primary side plate, and the EMI plate is located at below the primary side plate, described
It is connected between EMI plate and the primary side plate by the first copper bar, the connecting hole of the EMI plate is inserted into the lower end of first copper bar
And be welded to connect in bottom, the upper end of first copper bar presses and has self-clinching nut, and the primary side plate is overlapped in first bronze medal
It the upper end of row and is connect with the self-clinching nut by the first fastening screw.
Preferably, the primary side plate is connect with multiple IGBT, and heat-conduction insulation spacer is posted on the shell, and the IGBT is put
It is placed on the heat-conduction insulation spacer, mounting post is provided on the shell between the two neighboring IGBT, it is two neighboring described
It is compressed between IGBT by elastic slice, the elastic slice is screwed in the mounting post.
Preferably, there is the first gap, first gap between the surface of the shell and the bottom surface of the transformer
In be filled with the first heat-conducting glue.
Preferably, the secondary side tool of the transformer is connect there are three copper bar, intermediate copper bar is exported with the outputting inductance, and two
A side copper bar is connect with the secondary side plate, and the shell is provided with thermal column, the top surface of the thermal column and two sides
There is the second gap between the bottom surface of side copper bar, be filled with the second heat-conducting glue in second gap.
Preferably, the surface of the bottom surface of the outputting inductance and the shell has a third space, in the third space
Filled with third heat-conducting glue.
Preferably, there is the 4th gap, between the described 4th between the copper bar of the outputting inductance and the side wall of the shell
The 4th heat-conducting glue is filled in gap.
Preferably, the side wall of the shell is provided with water inlet pipe and outlet pipe, is provided in the shell and the water inlet
The cooling water channel being connected to the outlet pipe is managed, the cooling water channel has water channel cover board, the water in the housing bottom surface
It is connected between road cover board and the shell using friction welding (FW).
The present invention also provides a kind of new-energy automobiles, become including vehicle ontology and the vehicle-mounted DCDC for being installed on the vehicle ontology
Parallel operation, the On-Board Vehicle DC/DC Converter are specially On-Board Vehicle DC/DC Converter described in any of the above embodiments.
The On-Board Vehicle DC/DC Converter of new-energy automobile provided by the present invention, including shell, high input voltage connector, EMI
Plate, primary side plate, transformer, secondary side plate, outputting inductance, EMI inductance and low pressure out connector.High input voltage connector, low pressure
Out connector, signal connector and ground connection threaded hole are located at shell short side side, and water inlet pipe and water outlet are arranged in the short side other side
Pipe, EMI plate, primary side plate, transformer, secondary side plate, outputting inductance and EMI inductance are installed in shell, the upper surface of shell opening
Capping has housing-plate, and housing-plate can use pressed sheet, protect enclosure interior component, and overall compact is beautiful.
The input terminal of EMI plate is connect with high input voltage connector, the input terminal of primary side plate and the output copper bar of EMI plate
Connection, the input terminal of transformer are connect with the output terminal of primary side plate, the secondary side copper of the input copper bar and transformer of secondary side plate
Row's connection, secondary side copper bar of the both ends of outputting inductance respectively with secondary side plate and transformer be all connected with, the input terminal of EMI inductance with
The output terminal of outputting inductance connects, and the copper bar of low pressure out connector is connect with the output terminal of EMI inductance.High direct voltage letter
Number from high input voltage connector input, signal is filtered through EMI plate, is then transposed the signals into and is become by primary side plate
Pulse signal and input transformer, transformer keeps apart primary side signal with secondary side signal, after being converted through transformer pressure-reducing,
Flow through secondary side plate is all high current, and after secondary side plate rectifying and wave-filtering, it is defeated to be directly output to low pressure by the copper bar of EMI inductance
Out on connector.
Between transformer and secondary side plate, between transformer and outputting inductance, between secondary side plate and outputting inductance, outputting inductance
Copper bar switching is all made of between EMI inductance.Specifically, after converting by transformer pressure-reducing, flow through secondary side plate is all
High current, transformer secondary use three output copper bar forms, and upper and lower two side copper bars are connect with the copper bar of secondary side plate respectively,
Intermediate copper bar is connected on outputting inductance, and the other end on outputting inductance is connected on the copper bar of EMI inductance, the copper of EMI inductance
Row and outputting inductance are fixed together by casting glue, and the other end of the copper bar of EMI inductance is directly connected to low pressure output connection
On device.
On-Board Vehicle DC/DC Converter provided by the present invention is powered to low-voltage electrical apparatus on vehicle, between transformer and secondary side plate, is become
Copper bar switching is all made of between depressor and outputting inductance, between outputting inductance and EMI inductance, it can be achieved that high current transmission, volume
It is small, it is light-weight, it is compact-sized, the occupancy to the interior confined space is reduced, arrangement is more flexible, and good anti-vibration safely may be used
It is good by property, it is at low cost.
The present invention also provides a kind of new-energy automobiles, convert including vehicle ontology and the vehicle-mounted DCDC for being installed on vehicle ontology
Device, the On-Board Vehicle DC/DC Converter are specially any of the above-described kind of On-Board Vehicle DC/DC Converter.Since above-mentioned On-Board Vehicle DC/DC Converter has
There is above-mentioned technical effect, the new-energy automobile with the On-Board Vehicle DC/DC Converter should also have corresponding technical effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of On-Board Vehicle DC/DC Converter provided by specific embodiment in the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the bottom view of Fig. 1；
Fig. 4 is the connection schematic diagram of EMI plate and primary side plate；
Fig. 5 is IGBT radiator structure schematic diagram；
Fig. 6 is the structural schematic diagram of secondary side plate；
Fig. 7 is the scheme of installation of transformer and secondary side plate；
Fig. 8 is enlarged drawing at H in Fig. 7；
Fig. 9 is the scheme of installation of outputting inductance；
Figure 10 is I-I sectional view in Fig. 3；
Figure 11 is enlarged drawing at middle J.
It is marked in attached drawing as follows:
1- high input voltage connector, 2- are grounded threaded hole, 3- low pressure out connector, 4- signal connector, 5- shell, 6-
Water inlet pipe, 7- outlet pipe, 8- outputting inductance, 9-EMI plate, 10- transformer, 11- primary side plate, 12- pair side plate, 13- water channel cover board,
14- fastening screw, the first copper bar of 15-, 16-IGBT, 17- elastic slice, 18- heat-conduction insulation spacer, 19- press location nut, 20-
One gap, the second gap 21-, 22- third space, the 4th gap 23-.
Specific embodiment
Core of the invention is to provide a kind of On-Board Vehicle DC/DC Converter, which supplies to low-voltage electrical apparatus on vehicle
Electricity reduces the occupancy to the interior confined space, meets the flexibility of arrangement, cost is relatively low；Another core of the invention
It is to provide a kind of new-energy automobile including above-mentioned On-Board Vehicle DC/DC Converter.
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 description, 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.
Fig. 1 to Figure 11 is please referred to, Fig. 1 is On-Board Vehicle DC/DC Converter provided by specific embodiment a kind of in the present invention
Structural schematic diagram；Fig. 2 is the top view of Fig. 1；Fig. 3 is the bottom view of Fig. 1；Fig. 4 is the connection schematic diagram of EMI plate and primary side plate；
Fig. 5 is IGBT radiator structure schematic diagram；Fig. 6 is the structural schematic diagram of secondary side plate；Fig. 7 is the installation signal of transformer and secondary side plate
Figure；Fig. 8 is enlarged drawing at H in Fig. 7；Fig. 9 is the scheme of installation of outputting inductance；Figure 10 is I-I sectional view in Fig. 3；Figure 11 is
Enlarged drawing at middle J.
In a specific embodiment, the On-Board Vehicle DC/DC Converter of new-energy automobile provided by the present invention, including shell
Body 5, high input voltage connector 1, EMI plate 9, primary side plate 11, transformer 10, secondary side plate 12, outputting inductance 8, EMI inductance and low pressure
Out connector 3.High input voltage connector 1, low pressure out connector 3, signal connector 4 and ground connection threaded hole 2 are located at shell 5
Water inlet pipe 6 and outlet pipe 7 are arranged in short side side, the short side other side, EMI plate 9, primary side plate 11, transformer 10, secondary side plate 12, defeated
Inductance 8 and EMI inductance are installed in shell 5 out, and the capping of the upper surface of shell 5 opening has housing-plate, and housing-plate can be using punching
Pressing plate, protects 5 internal component of shell, and overall compact is beautiful.
The input terminal of EMI plate 9 is connect with high input voltage connector 1, and primary side plate 11 is connect with the input copper bar of EMI plate 9,
The input terminal of transformer 10 is connect with the output terminal of primary side plate 11, the secondary side of the input copper bar and transformer 10 of secondary side plate 12
Copper bar connection, secondary side copper bar of the both ends of outputting inductance 8 respectively with secondary side plate 12 and transformer 10 be all connected with, EMI inductance it is defeated
Enter terminal to connect with the output terminal of outputting inductance 8, the copper bar of low pressure out connector 3 is connect with the output terminal of EMI inductance.
High direct voltage signal is inputted from high input voltage connector 1, is filtered through EMI plate 9 to signal, then will by primary side plate 11
Signal, which is transformed into, becomes pulse signal and input transformer 10, and transformer 10 keeps apart primary side signal with secondary side signal, passes through
After 10 decompression transformation of transformer, flow through secondary side plate 12 is all high current, after secondary 12 rectifying and wave-filtering of side plate, passes through EMI
The copper bar of inductance is directly output on low pressure out connector 3.
Between transformer 10 and secondary side plate 12, between transformer 10 and outputting inductance 8, secondary side plate 12 and outputting inductance 8 it
Between, copper bar switching is all made of between outputting inductance 8 and EMI inductance.Specifically, after 10 decompression transformation of transformer, stream
What it is through secondary side plate 12 is all high current, and the secondary side of transformer 10 uses three output copper bar forms, upper and lower two side copper bars difference
It is connect with the copper bar of secondary side plate 12, intermediate copper bar is connected on outputting inductance 8, and the other end on outputting inductance 8 is connected to EMI electricity
On the copper bar of sense, the copper bar and outputting inductance 8 of EMI inductance are fixed together by casting glue, the other end of the copper bar of EMI inductance
It is directly connected on low pressure out connector 3.
On-Board Vehicle DC/DC Converter provided by the present invention is powered to low-voltage electrical apparatus on vehicle, transformer 10 and secondary side plate 12 it
Between, between transformer 10 and outputting inductance 8, between outputting inductance 8 and EMI inductance be all made of copper bar switching, it can be achieved that high current
Transmission, it is small in size, it is light-weight, it is compact-sized, the occupancy to the interior confined space is reduced, arrangement is more flexible, vibration resistance
Good, security reliability is good, at low cost.
Above-mentioned On-Board Vehicle DC/DC Converter is only a kind of preferred embodiment, is specifically not limited thereto, on this basis can basis
Actual needs is made having and targetedly be adjusted, so that different embodiments is obtained, the EMI copper bar being connect with outputting inductance 8
The included location nut 19 that presses with positioning function of copper bar connecting with the secondary side copper bar of transformer 10, press location nut
19 side wall has step surface, and small end part stretches out the surface of copper bar, makes mutual accurate positioning, installs simple and reliable.EMI
Inductance copper bar and the copper bar connecting with the secondary side copper bar of transformer 10 pass through Wave crest Welding on secondary side plate 12, easy to connect.Become
The copper bar on the secondary side of depressor 10 has the location feature of a lateral flange, in place convenient for wave-soldering installation, guarantees welding hypsokinesis gradient and water
Prosposition moves in the margin of tolerance.
On the basis of above-mentioned specific embodiment, those skilled in the art can be according to the difference of specific occasion, to vehicle
It carries dcdc converter and carries out several changes, EMI plate 9 is parallel with primary side plate 11, and EMI plate 9 is located at 11 lower section of primary side plate, EMI plate 9
It is connect between primary side plate 11 by the first copper bar 15, EMI plate 9 reduces other signals and do to it using long barricade on shell 5
It disturbs, it is smaller to flow through electric current for connection between EMI plate 9 and primary side plate 11, generally connected using wire jumper, and the application uses the first copper bar
15 switchings, keep structure more compact.The lower end of first copper bar 15 is inserted into the connecting hole of EMI plate 9 and is welded to connect in bottom, first
The upper end of copper bar 15, which presses, self-clinching nut, and primary side plate 11 is overlapped in the upper end of the first copper bar 15 and by the first fastening screw 14
It is connect with self-clinching nut, the first copper bar 15 crosses wave-soldering together with the devices such as capacitor on EMI plate 9, and processing in this way can be reduced wire jumper
Lineation, while line-end connector use is reduced, production cost can be reduced, keeps assembly more simple and reliable, it is easy to accomplish automation mentions
High efficiency.
Above-mentioned technical proposal is advanced optimized, those skilled in the art can be according to the difference of specific occasion to above-mentioned tool
Body embodiment carries out several changes, and primary side plate 11 connect with multiple IGBT16, heat-conduction insulation spacer 18 is posted on shell 5, is led
Thermal insulation gasket 18 can be phase-change material.IGBT16 is placed on heat-conduction insulation spacer 18, between two neighboring IGBT16
It is provided with mounting post on shell 5, is compressed between two neighboring IGBT16 by elastic slice 17, elastic slice 17 is screwed in installation
On column.Concrete operations are as follows: first by IGBT16 pin bending, then wave-soldering pads one layer on primary side plate 11 below IGBT16
Very thin heat-conduction insulation spacer 18, generally phase-change material, phase-change material are close to cooling water channel, are led to by being adhesive on shell 5
It crosses elastic slice 17 to compress IGBT16, the normal pressure protected on just single IGBT16 is not less than 80N, reduces thermal contact resistance.Experiment shows
During pressure rises to 80N from 0, thermal contact resistance is being gradually reduced, when more than 80N, thermal resistance gradually tends to balance, with this
The IGBT16 on primary side plate 11 is solved due to switching frequency height, the big problem of power loss improves heat dissipation effect and service performance.
It is important to note that On-Board Vehicle DC/DC Converter provided by the present invention is not intended to be limited to such situation, shell
There is the first gap 20 between the surface of body 5 and the bottom surface of transformer 10, be filled with the first heat-conducting glue in the first gap 20, first
Heat-conducting glue is used to radiate to the core body of transformer 10.Transformer 10 is directly radiated by shell 5, and thermal resistance is reduced, and enhancing dissipates
Thermal effect.
On-Board Vehicle DC/DC Converter provided by the present invention, in the immovable situation of other components, the secondary side of transformer 10
There are three copper bar is exported, intermediate copper bar connect tool with outputting inductance 8, and two side copper bars are connect with pair side plate 12, elder generation when installation
It is just positioned by the location nut 19 that presses of the copper bar of EMI inductance, the other end is then connected to copper among the secondary side of transformer 10
It locks on row, to adjust installation error, can will be opened with copper bar connecting hole among the secondary side of transformer 10 slightly larger.Shell 5 is set
It is equipped with thermal column, there is the second gap 21, patch in the second gap 21 between the top surface of thermal column and the bottom surface of two side copper bars
Insulating heat-conductive gasket and it is filled with the second heat-conducting glue, the second heat-conducting glue is for giving transformer 10 secondary side copper bar heat dissipation；While second
Heat-conducting glue can not only improve the heat dissipation of transformer 10, moreover it is possible to adjust the error of vertical direction when transformer 10 is installed.Preferably, transformation
The secondary side copper bar of device 10 extends to two lateral flanges, and the secondary side copper bar of transformer 10 flows through high current, increases heat dissipation area.
For the On-Board Vehicle DC/DC Converter in above-mentioned each embodiment, the bottom surface of outputting inductance 8 and the surface of shell 5 have
Third space 22, third space 22 is interior to be filled with third heat-conducting glue, for giving 8 ontology of outputting inductance to radiate.
Since the high current of copper bar among the secondary side of transformer 10 is twice of side copper bar, and it is straight with 8 one end of outputting inductance
It connects in succession, therefore the copper bar temperature of outputting inductance 8 is higher, for the heat dissipation effect for enhancing 8 copper bar of outputting inductance, outputting inductance 8
Copper bar and shell 5 side wall between there is the 4th gap 23, the 4th heat-conducting glue is filled in the 4th gap 23, for output
The copper bar of inductance 8 radiates.
In order to further optimize the above technical scheme, the side wall of shell 5 is provided with water inlet pipe 6 and outlet pipe 7, in shell 5
It is provided with the cooling water channel being connected to water inlet pipe 6 and outlet pipe 7, by the way of water cooling, is arranged along the path of power flow
Cooling water channel, cooling thermal diffusivity are preferable.Cooling water pipeline has water channel cover board 13, water channel cover board 13 and shell 5 in 5 bottom surface of shell
Between using friction welding (FW) connect, be fused together shell 5 and cover plate materials, water channel cavity enable to bear bigger pressure, protect
Card dustproof and waterproof reaches IP67 grade or more, improves reliability.
The On-Board Vehicle DC/DC Converter provided in based on the above embodiment, the present invention also provides a kind of new-energy automobiles, should
New-energy automobile includes vehicle ontology and the On-Board Vehicle DC/DC Converter for being installed on vehicle ontology, and wherein On-Board Vehicle DC/DC Converter is above-mentioned
Any one On-Board Vehicle DC/DC Converter in embodiment.Become since the new-energy automobile uses the vehicle-mounted DCDC in above-described embodiment
Parallel operation, so the beneficial effect of the new-energy automobile please refers to above-described embodiment.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (10)
1. a kind of On-Board Vehicle DC/DC Converter of new-energy automobile, which is characterized in that including shell (5), be installed on the shell (5)
On high input voltage connector (1), connect with the high input voltage connector (1) EMI plate (9), with the EMI plate (9)
The primary side plate (11) of copper bar connection, the transformer (10) being connect with the output terminal of the primary side plate (11) and the transformer
(10) it is secondary while copper bar connection secondary side plate (12), with it is described pair side plate (12) and the transformer (10) it is secondary while copper bar connect
The outputting inductance (8) connect, the EMI inductance being connect with the output terminal of the outputting inductance (8), the transformer (10) with it is described
Between secondary side plate (12), between the transformer (10) and the outputting inductance (8), the secondary side plate (12) and the output it is electric
Copper bar switching is all made of between sense (8), between the outputting inductance (8) and the EMI inductance.
2. On-Board Vehicle DC/DC Converter according to claim 1, which is characterized in that the EMI being connect with the outputting inductance (8)
Copper bar and the included location nut that presses (19) with positioning function of the copper bar being connect with the secondary side copper bar of the transformer (10),
And through Wave crest Welding on the secondary side plate (12).
3. On-Board Vehicle DC/DC Converter according to claim 1, which is characterized in that the EMI plate (9) and the primary side plate
(11) in parallel, and the EMI plate (9) is located at below the primary side plate (11), the EMI plate (9) and the primary side plate (11) it
Between connected by the first copper bar (15), the lower end of first copper bar (15) is inserted into the connecting hole of the EMI plate (9) and in bottom
It is welded to connect, the upper end of first copper bar (15) presses and has self-clinching nut, and the primary side plate (11) is overlapped in first bronze medal
It arranges the upper end of (15) and is connect by the first fastening screw (14) with the self-clinching nut.
4. On-Board Vehicle DC/DC Converter according to claim 1, which is characterized in that the primary side plate (11) and multiple IGBT
(16) it connects, is posted heat-conduction insulation spacer (18) on the shell (5), the IGBT (16) is placed in the heat-conduction insulation spacer
(18) on, be provided with mounting post on the shell (5) between the two neighboring IGBT (16), the two neighboring IGBT (16) it
Between compressed by elastic slice (17), the elastic slice (17) is screwed in the mounting post.
5. On-Board Vehicle DC/DC Converter according to claim 1, which is characterized in that the surface of the shell (5) and the change
There are the first gap (20) between the bottom surface of depressor (10), the first heat-conducting glue is filled in first gap (20).
6. On-Board Vehicle DC/DC Converter according to claim 5, which is characterized in that the secondary side of the transformer (10) has three
A output copper bar, intermediate copper bar are connect with the outputting inductance (8), and two side copper bars are connect with the secondary side plate (12), institute
It states shell (5) and is provided with thermal column, have between second between the top surface of the thermal column and the bottom surface of two side copper bars
Gap (21), second gap (21) is interior to be filled with the second heat-conducting glue.
7. On-Board Vehicle DC/DC Converter according to claim 1, which is characterized in that the bottom surface of the outputting inductance (8) and institute
The surface for stating shell (5) has third space (22), and third heat-conducting glue is filled in the third space (22).
8. On-Board Vehicle DC/DC Converter according to claim 7, which is characterized in that the copper bar of the outputting inductance (8) and institute
Stating has the 4th gap (23) between the side wall of shell (5), be filled with the 4th heat-conducting glue in the 4th gap (23).
9. On-Board Vehicle DC/DC Converter according to claim 1-8, which is characterized in that the side wall of the shell (5)
It is provided with water inlet pipe (6) and outlet pipe (7), is provided with and the water inlet pipe (6) and the outlet pipe (7) in the shell (5)
The cooling water channel being connected to, the cooling water channel have water channel cover board (13) in the shell (5) bottom surface, the water channel cover board
(13) it is connected between the shell (5) using friction welding (FW).
10. a kind of new-energy automobile, including vehicle ontology and it is installed on the On-Board Vehicle DC/DC Converter of the vehicle ontology, feature exists
In the On-Board Vehicle DC/DC Converter is specially the described in any item On-Board Vehicle DC/DC Converters of claim 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910028524.4A CN109639130A (en) | 2019-01-08 | 2019-01-08 | A kind of new-energy automobile and its On-Board Vehicle DC/DC Converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910028524.4A CN109639130A (en) | 2019-01-08 | 2019-01-08 | A kind of new-energy automobile and its On-Board Vehicle DC/DC Converter |
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| CN109639130A true CN109639130A (en) | 2019-04-16 |
Family
ID=66060638
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910028524.4A Pending CN109639130A (en) | 2019-01-08 | 2019-01-08 | A kind of new-energy automobile and its On-Board Vehicle DC/DC Converter |
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