CN107612310A - A kind of vehicle-mounted decompression DC/DC power supplys - Google Patents
A kind of vehicle-mounted decompression DC/DC power supplys Download PDFInfo
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- CN107612310A CN107612310A CN201710842908.0A CN201710842908A CN107612310A CN 107612310 A CN107612310 A CN 107612310A CN 201710842908 A CN201710842908 A CN 201710842908A CN 107612310 A CN107612310 A CN 107612310A
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- input
- output end
- conversion modules
- control protection
- electric circuit
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Abstract
The present invention provides a kind of vehicle-mounted decompression DC/DC power supplys; including casing, radiator, input filter module, DC/DC conversion modules, out connector, accessory power supply and control protection electric circuit; input filter module input connects power supply, and its output end connects the input of DC/DC conversion modules and the input of accessory power supply respectively；DC/DC conversion modules output end connects out connector；Control protection electric circuit input connects auxiliary power output end and DC/DC conversion module output ends, its output end connection DC/DC conversion module inputs；Input filter module and control protection electric circuit interval are fixed on left plate, DC/DC conversion modules fix on a heat sink, out connector be fixed on rear board.Stability and reliability of the present invention are high, and radiating and anti-dust performance are good and easily controllable, have good application prospect.
Description
Technical field
The present invention relates to field of switch power, and in particular to a kind of vehicle-mounted decompression DC/DC power supplys.
Background technology
In recent years, China continues to increase the support dynamics to new-energy automobile, puts into effect in succession《On carrying out energy-conservation and new energy
The notice of source automobile Demonstration And Extension pilot work》With《Plan is revitalized in automobile industry adjustment》Etc. relevant policies, with pure power and mix
Conjunction power is that the growth potential of the new-energy automobile of representative commercially starts to discharge.New energy charging technique is as the new energy of promotion
The necessary factor of source vehicle industrialization process, also enters fast-developing track.But currently meet in-car low-voltage electronic equipment
The vehicle power of power reguirements and low tension battery charging requirement, can't be fully met at stability, radiating, dust-proof aspect will
Ask.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide a kind of vehicle-mounted decompression DC/DC power supplys, the power supply are steady
Qualitative and reliability is high, and radiating and anti-dust performance are good and easily controllable, have good application prospect.
To achieve the above object, the present invention provides a kind of vehicle-mounted decompression DC/DC power supplys, including the casing 11 being made up of side plate
And radiator 7, the DC/DC of the use BUCK current feed full-bridge topologies of input filter module 1 inside casing 11 become
Block 2, out connector 5, accessory power supply 4 and control protection electric circuit 3 are changed the mold, the input of input filter module 1 connects high pressure
Dc source, its output end connect the input of DC/DC conversion modules 2 and the input of accessory power supply 4 respectively；The DC/
The output end of DC conversion modules 2 connects out connector 5；The output of the input connection accessory power supply 4 of the control protection electric circuit 3
End and the output end of DC/DC conversion modules 2, the input of its output end connection DC/DC conversion modules 2；The input filter
Module 1 and control protection electric circuit 3 interval be fixed on left plate 6, DC/DC conversion modules are fixed on radiator 7, export connection
Device is fixed on rear board 8.
As a further improvement on the present invention：
The control protection electric circuit 3 is Current Voltage double -loop control protection circuit.
From above technical scheme, the invention provides a kind of vehicle-mounted decompression DC/DC power supplys, power source internal DC/DC
Conversion module uses BUCK current feeds full-bridge topology and Current Voltage Double-loop Control Technology, power supply is easily controllable and stability and
Reliability is high；Input filter module and control protection electric circuit interval are fixed on left plate, DC/DC conversion modules are fixed on radiating
On device, out connector be fixed on rear board, heat dissipation wind channel and each module are completely isolated, and radiating dustproof performance is good.
Brief description of the drawings
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the structural representation of the present invention.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings：
As shown in figure 1, the vehicle-mounted decompression DC/DC power supplys of one kind provided by the present invention, including including casing 11, radiator 7, input
Filtration module 1, DC/DC conversion modules 2, out connector 5, accessory power supply 4 and control protection electric circuit 3, input filter module 1 are defeated
Enter end connection high-voltage DC power supply, its output end connect respectively DC/DC conversion modules 2 input and accessory power supply 4 it is defeated
Enter end, input filter module 1 is filtered to input voltage, reduces ripple, is reduced interference, is ensured the steady of input power；DC/
The output end of DC conversion modules 2 connects out connector 5；The input of control protection electric circuit 3 connect the output end of accessory power supply 4 and
The output end of DC/DC conversion modules 2, the input of its output end connection DC/DC conversion modules 2.DC/DC conversion modules 2 use BUCK
The full-bridge topologies of current feed, and use bootstrap type full bridge driving circuit, strong shock resistance, it can be ensured that system is reliable
Property and stability, main circuit high reliability and inversion high efficiency；Wide input voltage range, output current ripple are small.Accessory power supply
Module 4 is that control protection electric circuit 3 is powered, and control protection electric circuit 3 gathers electric current and voltage from the output end of DC/DC conversion modules 2
Signal, if curtage signal exceeds certain threshold value, the closing of drive control DC/DC conversion modules 2, reach excessively stream and
Over-voltage protecting function, realize the protection to power supply.
As shown in Fig. 2 input filter module 1 and the interval of control protection electric circuit 3 are fixed on left plate 6, DC/DC becomes mold changing
Block 2 is fixed on radiator 7, and out connector 5 is fixed on rear board 8, and each module and heat dissipation wind channel 9 are completely isolated, are beneficial to
Radiating, and good dust-proof effect can be reached.In terms of electromagnetic compatibility, the position of each module setting, current loop can be avoided
Caused stronger magnetic field field, by shielding, filter, isolation, transient state suppresses and the rationally measure such as ground connection ensures power work
It is safe and stable reliable.
In terms of reliability, control protection electric circuit 3 and extraneous input and output, all in line with principle nearby, if input
With exporting every farther out, I/O ports are preferably provided with photoelectric coupling isolation circuit；Control protection electric circuit plate is placed on from power device most
Remote position, and driving circuits plate can also cover ground using large area, to improve the reliability of control circuit.
In order to facilitate use, power input interface is reliable, easy to the custom plug-in of plug using contact, and output interface uses
The copper bar way of output, meet the power reguirements of low-voltage, high-current.
In order to ensure safe to use, power output end is additionally provided with zero loss reverse-connection preventing circuit.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the model of the present invention
Enclose and be defined, on the premise of design spirit of the present invention is not departed from, technical side of the those of ordinary skill in the art to the present invention
The various modifications and improvement that case is made, it all should fall into the protection domain of claims of the present invention determination.
Claims (2)
- A kind of 1. vehicle-mounted decompression DC/DC power supplys, it is characterised in that：Including the casing being made up of side plate（11）And installed in casing （11）Internal radiator（7）, input filter module（1）, using the DC/DC conversion modules of BUCK current feed full-bridge topologies （2）, out connector（5）, accessory power supply（4）And control protection electric circuit（3）, the input filter module（1）Input connects High-voltage DC power supply, its output end connect DC/DC conversion modules respectively（2）Input and accessory power supply（4）Input； The DC/DC conversion modules（2）Output end connects out connector（5）；The control protection electric circuit（3）Input connection auxiliary Power supply（4）Output end and DC/DC conversion modules（2）Output end, its output end connection DC/DC conversion modules（2）Input；Institute State input filter module（1）And control protection electric circuit（3）Interval is fixed on left plate（6）Upper, DC/DC conversion modules are fixed on scattered Hot device（7）Upper, out connector is fixed on rear board（8）.
- 2. vehicle-mounted decompression DC/DC power supplys according to claim 1, it is characterised in that：The control protection electric circuit（3）For electricity Flow voltage double -loop control protection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842908.0A CN107612310A (en) | 2017-09-18 | 2017-09-18 | A kind of vehicle-mounted decompression DC/DC power supplys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710842908.0A CN107612310A (en) | 2017-09-18 | 2017-09-18 | A kind of vehicle-mounted decompression DC/DC power supplys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107612310A true CN107612310A (en) | 2018-01-19 |
Family
ID=61060354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710842908.0A Pending CN107612310A (en) | 2017-09-18 | 2017-09-18 | A kind of vehicle-mounted decompression DC/DC power supplys |
Country Status (1)
| Country | Link |
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| CN (1) | CN107612310A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389237A (en) * | 2022-01-06 | 2022-04-22 | 中国第一汽车股份有限公司 | DC/DC converter, and output reverse connection detection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653774Y (en) * | 2003-10-22 | 2004-11-03 | 广州珠江电信设备制造有限公司 | High frequency switch power commutating module for communication equipment |
| CN203788154U (en) * | 2014-04-23 | 2014-08-20 | 深圳市时代创新科技有限公司 | Multipath output DC/DC secondary power supply system |
| CN106160454A (en) * | 2015-05-11 | 2016-11-23 | 现代自动车株式会社 | Automobile-used power conversion module |
| CN205883047U (en) * | 2016-04-01 | 2017-01-11 | 合肥四喜电子科技有限公司 | Output is 30W's 18 brick DCDC power module |
| CN207265867U (en) * | 2017-09-18 | 2018-04-20 | 合肥华耀电子工业有限公司 | A kind of vehicle-mounted decompression DC/DC power supplys |
-
2017
- 2017-09-18 CN CN201710842908.0A patent/CN107612310A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2653774Y (en) * | 2003-10-22 | 2004-11-03 | 广州珠江电信设备制造有限公司 | High frequency switch power commutating module for communication equipment |
| CN203788154U (en) * | 2014-04-23 | 2014-08-20 | 深圳市时代创新科技有限公司 | Multipath output DC/DC secondary power supply system |
| CN106160454A (en) * | 2015-05-11 | 2016-11-23 | 现代自动车株式会社 | Automobile-used power conversion module |
| CN205883047U (en) * | 2016-04-01 | 2017-01-11 | 合肥四喜电子科技有限公司 | Output is 30W's 18 brick DCDC power module |
| CN207265867U (en) * | 2017-09-18 | 2018-04-20 | 合肥华耀电子工业有限公司 | A kind of vehicle-mounted decompression DC/DC power supplys |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389237A (en) * | 2022-01-06 | 2022-04-22 | 中国第一汽车股份有限公司 | DC/DC converter, and output reverse connection detection method and device |
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