CN201854190U - Voltage converter for electric vehicle - Google Patents
Voltage converter for electric vehicle Download PDFInfo
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- CN201854190U CN201854190U CN2010206273828U CN201020627382U CN201854190U CN 201854190 U CN201854190 U CN 201854190U CN 2010206273828 U CN2010206273828 U CN 2010206273828U CN 201020627382 U CN201020627382 U CN 201020627382U CN 201854190 U CN201854190 U CN 201854190U
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Abstract
The utility model discloses a voltage converter for an electric vehicle, which comprises a battery pack, an IGBT (Insulated Gate Bipolar Transistor) inverter converting high-voltage direct current of the battery pack into high-voltage alternating current, a transformer converting high-voltage alternating current into multiple paths of low-voltage alternating current, and a rectifying and filtering circuit converting the multiple paths of low-voltage alternating current into direct current and outputting the direct current, wherein the input end of the IGBT inverter is connected with the battery pack, and the output end thereof is connected with the input end of the transformer; and the input end of the rectifying and filtering circuit is connected with the output end of the transformer, and the output end thereof is connected with electric equipments of various voltage class respectively. The voltage converter adopts one battery pack to output voltage of different voltage class to the electric vehicle by voltage conversion, and the battery pack discharges electricity in the completely same way, thus not only meeting the power supply demand, but also prolonging the service life of the battery pack.
Description
Technical field
The utility model belongs to the voltage transformation technical field, is specifically related to a kind of electric motor car voltage changer.
Background technology
There are a lot of common equipments to need electricity consumption in the electric motor car, for example electrical machinery of active force, indicator light, panel board, control board, relay etc., but the electric pressure that these equipment use is incomplete same, the electric pressure of electrical machinery of active force is that 48V-500V does not wait, and the electric pressure of other equipment is generally 12V or 24V.Existing supply power mode has two kinds: be equipped with battery pack (a) for the power consumption equipment of different electric pressures; (b) (such as the electrical machinery of active force rated voltage is 380V to dispose a Battery pack group by the highest voltage level power consumption equipment, the battery pack that then full car is only joined one group of 380V), all the other electricity consumption grades are then directly pulled strings from the high-voltage battery group and drawn, and (such as a joint lithium battery normal voltage is 3.7V, if will be the power devices of 12V to electric pressure, the direct voltage of drawing 11.2V just from three batteries serial connections).
All there is certain defective in above dual mode, (a) number of batteries of mode needs is more, has both increased the cost of car load, has increased complete vehicle weight again, in addition, the battery pack of different electric pressures is more at the loaded down with trivial details degree and the cost that have increased use, maintenance virtually; (b) though there is not the problem that increases battery pack quantity in mode, but, because the power consumption equipment of small voltage grade is a few battery power takings from battery pack, cause the battery power discharge inequality, the fastest and the charging of this place's battery discharge is full of at last the time, the long-term inconsistency of battery of using increases, and causes the battery pack life-span to reduce, and is unfavorable for the operation and maintenance of battery pack.
The utility model content
In order to address the above problem, it is the voltage of the required different brackets of exportable electric motor car that the utility model provides a kind of usefulness one Battery pack group, and the on all four electric motor car voltage changer of battery power discharge.
A kind of electric motor car voltage changer, comprise battery pack, high voltage direct current in the battery pack is converted to the IGBT inverter of High Level AC Voltage, High Level AC Voltage is converted to the transformer of many group low-voltage ACs, and will organize the current rectifying and wave filtering circuit that low-voltage AC converts direct current and output to more, the input of described IGBT inverter is connected with described battery pack, and output is connected with the input of described transformer; The input of described current rectifying and wave filtering circuit is connected with the output of described transformer, and output connects the electric motor car electricity consumption equipment of various electric pressures respectively.
Wherein, described current rectifying and wave filtering circuit comprises and converts alternating current to galvanic diode rectifier circuit, and the filter circuit of ripple in the elimination voltage; Described diode rectifier circuit input is connected with the output of transformer, and output is connected with the filter circuit input.
Wherein, described electric motor car voltage changer also comprises control IGBT inverter, adjusts voltage steady I GBT controller, and the input of described IGBT controller is connected with the output of described current rectifying and wave filtering circuit, and output is connected with the IGBT inverter.
Wherein, described IGBT controller comprises the signal gathering unit of the voltage signal of gathering current rectifying and wave filtering circuit output, and the processing unit of this voltage signal of analyzing and processing; The input of described signal gathering unit is connected with described filter circuit output, and output is connected with described processing unit input, and described processing unit output is connected with described IGBT inverter.
Wherein, corresponding three groups of different secondary winding of the elementary winding of described transformer.
Wherein, the secondary winding of the elementary winding correspondence of described transformer is less than ten groups.
The beneficial effects of the utility model are: a kind of electric motor car voltage changer, comprise battery pack, high voltage direct current in the battery pack is converted to the IGBT inverter of High Level AC Voltage, High Level AC Voltage is converted to the transformer of many group low-voltage ACs, and will organize the current rectifying and wave filtering circuit that low-voltage AC converts direct current and output to more, the input of described IGBT inverter is connected with described battery pack, and output is connected with the input of described transformer; The input of described current rectifying and wave filtering circuit is connected with the output of described transformer, and output connects the electric motor car electricity consumption equipment of various electric pressures respectively.
The utility model adopts the voltage of the mode of voltage transitions with the required different brackets of Battery pack group output electric motor car, and battery power discharge is in full accord, has both satisfied the power demands of electric motor car, has prolonged the useful life of battery pack again.
Description of drawings
Fig. 1 is the structural representation of electric motor car voltage changer of the present utility model.
Description of reference numerals is as follows:
1-battery pack; 2-IGBT inverter;
3-transformer; 4-current rectifying and wave filtering circuit;
5-IGBT controller.
Embodiment
For the purpose, technical scheme and the advantage that make utility model is clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.
Specific embodiment:
Referring to Fig. 1, a kind of electric motor car voltage changer, comprise battery pack 1, high voltage direct current in the battery pack 1 is converted to the IGBT inverter 2 of High Level AC Voltage, High Level AC Voltage is converted to the transformer 3 of many group low-voltage ACs, and will organize the current rectifying and wave filtering circuit 4 that low-voltage AC converts direct current and output to more, and the input of described IGBT inverter 2 is connected with described battery pack 1, and output is connected with the input of described transformer 3; The input of described current rectifying and wave filtering circuit 4 is connected with the output of described transformer 3, and output connects the electric motor car electricity consumption equipment of various electric pressures respectively.
(a) direct current of battery pack 1 output high pressure 444V is through the high frequency electric source of IGBT inverter 2 inversions into about 20KHZ; (b) transformer 3 conversion of high frequency electric source through having a plurality of secondary winding go out the low-voltage AC (as AC12V, AC24V, AC48V etc.) of required a plurality of electric pressures; (c) low-voltage ACs of group more than are organized direct currents (as DC12V, DC24V, DC48V etc.) more by independently diode rectifier circuit converts to separately; (d) wave circuit after filtration of the DC power supply after the diode rectifier circuit rectification finally obtains there is not clutter, the many stably group low-voltage dc power supplies of output.
Wherein, described current rectifying and wave filtering circuit 4 comprises and converts alternating current to galvanic diode rectifier circuit, and the filter circuit of ripple in the elimination voltage; Described diode rectifier circuit input is connected with the output of transformer, and output is connected with the filter circuit input.
Wherein, described electric motor car voltage changer also comprises control IGBT inverter 2, adjusts voltage steady I GBT controller 5, and the input of described IGBT controller 5 is connected with the output of described current rectifying and wave filtering circuit 4, and output is connected with IGBT inverter 2.
IGBT controller 5 obtains the voltage signal of many groups low-voltage DC of current rectifying and wave filtering circuit 4 outputs, sends control command to IGBT inverter 2 after the analyzing and processing, adjusts the stable of voltage.IGBT controller 5 forms closed-loop control with IGBT inverter 2, transformer 3, current rectifying and wave filtering circuit 4, monitors output voltage in real time, and adjusts accordingly, has reached the purpose of voltage stabilizing.
Wherein, described IGBT controller 5 comprises the signal gathering unit of the voltage signal of gathering current rectifying and wave filtering circuit 4 outputs, and the processing unit of this voltage signal of analyzing and processing; The input of described signal gathering unit is connected with described filter circuit 4 outputs, and output is connected with described processing unit input, and described processing unit output is connected with described IGBT inverter 2.
Wherein, corresponding three groups of different secondary winding of the elementary winding of described transformer 3.
Wherein, the secondary winding of the elementary winding correspondence of described transformer 3 is less than ten groups.
The utility model adopts the voltage of the mode of voltage transitions with the required different brackets of Battery pack group output electric motor car, and battery power discharge is in full accord, has both satisfied power demands, has prolonged the useful life of battery pack again.
Above content only is preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (6)
1. electric motor car voltage changer, it is characterized in that: comprise battery pack, high voltage direct current in the battery pack is converted to the IGBT inverter of High Level AC Voltage, High Level AC Voltage is converted to the transformer of many group low-voltage ACs, and will organize the current rectifying and wave filtering circuit that low-voltage AC converts direct current and output to more, the input of described IGBT inverter is connected with described battery pack, and output is connected with the input of described transformer; The input of described current rectifying and wave filtering circuit is connected with the output of described transformer, and output connects the electric motor car electricity consumption equipment of various electric pressures respectively.
2. a kind of electric motor car voltage changer as claimed in claim 1 is characterized in that: described current rectifying and wave filtering circuit comprises and converts alternating current to galvanic diode rectifier circuit, and the filter circuit of ripple in the elimination voltage; Described diode rectifier circuit input is connected with the output of transformer, and its output is connected with the filter circuit input.
3. a kind of electric motor car voltage changer as claimed in claim 2, it is characterized in that: described electric motor car voltage changer also comprises control IGBT inverter, adjusts voltage steady I GBT controller, the input of described IGBT controller is connected with the output of described current rectifying and wave filtering circuit, and its output is connected with the IGBT inverter.
4. a kind of electric motor car voltage changer as claimed in claim 3 is characterized in that: described IGBT controller comprises the signal gathering unit of the voltage signal of gathering current rectifying and wave filtering circuit output, and the processing unit of this voltage signal of analyzing and processing; The input of described signal gathering unit is connected with described filter circuit output, and its output is connected with described processing unit input, and described processing unit output is connected with described IGBT inverter.
5. a kind of electric motor car voltage changer as claimed in claim 3 is characterized in that: the corresponding three groups of different secondary winding of the elementary winding of described transformer.
6. a kind of electric motor car voltage changer as claimed in claim 3 is characterized in that: the secondary winding of the elementary winding correspondence of described transformer is less than ten groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273828U CN201854190U (en) | 2010-11-26 | 2010-11-26 | Voltage converter for electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206273828U CN201854190U (en) | 2010-11-26 | 2010-11-26 | Voltage converter for electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201854190U true CN201854190U (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206273828U Expired - Fee Related CN201854190U (en) | 2010-11-26 | 2010-11-26 | Voltage converter for electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201854190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620828A (en) * | 2017-09-20 | 2018-01-23 | 莱芜钢铁集团有限公司 | Magnetic valve emergency service equipment and blast furnace process stove feeding system |
-
2010
- 2010-11-26 CN CN2010206273828U patent/CN201854190U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107620828A (en) * | 2017-09-20 | 2018-01-23 | 莱芜钢铁集团有限公司 | Magnetic valve emergency service equipment and blast furnace process stove feeding system |
| CN107620828B (en) * | 2017-09-20 | 2024-03-19 | 莱芜钢铁集团有限公司 | Electromagnetic valve emergency power supply equipment and blast furnace smelting furnace feeding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHOULIANG (LIAONING) ELECTROMOTOR TECHNOLOGY CO., Free format text: FORMER OWNER: CHAULEONG ENTERPRISE (GROUP) LTD. Effective date: 20150408 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 523180 DONGGUAN, GUANGDONG PROVINCE TO: 112616 TIELING, LIAONING PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150408 Address after: 112616 Liaoning Province, Tieling City Economic Development Zone in Liaoning Province special vehicle production base of harmonious Street No. 13-2 1-1 Patentee after: Zhouliang (Liaoning) Motor Technology Co. Ltd. Address before: 523180 Guangdong city in Dongguan Province town of Kau Jiuqu Industrial Management District Dongguan Zhouliang Communication Technology Co Ltd Patentee before: Chauleong Enterprise (Group) Ltd. |
|
| 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: 20110601 Termination date: 20181126 |