CN113179031B - Integrated dc-to-ac converter direct current supports electric capacity, motor and vehicle - Google Patents
Integrated dc-to-ac converter direct current supports electric capacity, motor and vehicle Download PDFInfo
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- CN113179031B CN113179031B CN202110464274.6A CN202110464274A CN113179031B CN 113179031 B CN113179031 B CN 113179031B CN 202110464274 A CN202110464274 A CN 202110464274A CN 113179031 B CN113179031 B CN 113179031B
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- busbar
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to the technical field of electronic components, in particular to an integrated inverter direct-current supporting capacitor, a motor and a vehicle, wherein the integrated inverter direct-current supporting capacitor comprises a shell, a plurality of X capacitors and a conductive bar; the shell is internally provided with an accommodating space, and the X capacitors are arranged in the accommodating space; the conducting bar comprises a positive busbar, a negative busbar and a three-phase output busbar, and the positive electrodes of the X capacitors are connected in parallel on the positive busbar; the negative electrodes of the X capacitors are connected in parallel on the negative electrode busbar; pins are respectively arranged on the positive busbar, the negative busbar and the three-phase output busbar and extend out of the shell; according to the invention, by integrating a plurality of X capacitors, the power density of the motor controller is increased, the inductive conduction path is reduced, the efficiency of the inverter is increased, and the number of assembled components is reduced; a three-phase output bus bar is integrated in the capacitor; relatively complicated electrical connections are accomplished, reducing the complexity of the overall arrangement of the motor controller.
Description
Technical Field
The invention relates to the technical field of electronic components, in particular to an integrated inverter direct-current support capacitor, a motor and a vehicle.
Background
With the application of the silicon carbide power crystal, the switching frequency is increased, and the requirement of higher power density is met, the capacitance occupies larger and larger ratio of the whole electric control volume.
Current automatically controlled design, the structure based on power module mainly designs the overall arrangement, and the electric capacity utilizes the copper bar to carry out the connection between the components and parts as independent component, and overall structure lacks change and elasticity, and the utilization ratio in space is not high.
On the other hand, since each component is independent, the number of the integrally electrically controlled assembled devices is increased, the efficiency of production and assembly is reduced, and the overall original device and assembly cost is increased.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: an integrated inverter DC support capacitor, motor and vehicle are provided that increase the power density of the motor controller, have a higher degree of integration, and reduce the inductive conduction path.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
an integrated inverter direct current support capacitor comprises a shell, a plurality of X capacitors and a conductive bar;
the shell is internally provided with an accommodating space, and the X capacitors are arranged in the accommodating space;
the conducting bar comprises a positive busbar, a negative busbar and a three-phase output busbar, and the positive electrodes of the X capacitors are connected in parallel on the positive busbar; the negative electrodes of the X capacitors are connected in parallel on the negative electrode busbar;
the positive busbar, the negative busbar and the three-phase output busbar are respectively provided with a pin, and the pins extend out of the shell.
In order to solve the above technical problems, the second technical solution adopted by the present invention is:
an electric machine comprises the integrated inverter direct current support capacitor.
In order to solve the above technical problems, a third technical solution adopted by the present invention is:
a vehicle comprises the integrated inverter direct current support capacitor and/or the motor.
The invention has the beneficial effects that: by integrating a plurality of X capacitors, the power density of the motor controller is increased, the inductive conduction path is reduced, the efficiency of the inverter is increased, the number of assembled components is reduced, the assembly efficiency is increased, and the overall electric control cost is reduced; integrating the capacitor component structure and the corresponding electric control framework to realize the layout mode of a low-inductance path; the integrated current sensor is integrated, so that the shape design of the busbar is more flexible, the space and accessibility required during assembly are not required to be considered, and finally, the electric control design with high power density is achieved; a three-phase output bus bar is integrated in the capacitor; relatively complicated electrical connection is completed, and the complexity of the total arrangement of the motor controller is reduced; by integrating the input busbar (the positive busbar and the negative busbar), the three output busbars, the X capacitor and the Y capacitor, the final finished product is subjected to glue filling treatment, the overall structural strength is greatly enhanced, the heat conduction path is increased by the glue filling, and the effect of active heat dissipation can be finally achieved by means of the design of a radiator.
Drawings
Fig. 1 is a schematic structural diagram of an integrated inverter dc support capacitor according to an embodiment of the present invention;
fig. 2 is a disassembled schematic diagram of an integrated inverter dc support capacitor according to an embodiment of the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a further exploded view of FIG. 2;
FIG. 5 is another angled view of FIG. 2;
description of reference numerals: 1. a housing; 11. an accommodating space; 2. an X capacitor; 3. a conductive bar; 31. a positive busbar; 31a, a pin of the positive busbar; 32. a negative electrode bus bar; 32a, pins of the negative busbar; 33. a three-phase output bus bar; 33a, pins of the three-phase output busbar; 4. a Y capacitor; 5. an insulating layer; 6. a laminated structure.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 5, an integrated inverter dc support capacitor includes a housing 1, a plurality of X capacitors 2 and a conductive bar 3;
the housing 1 is internally provided with an accommodating space 11, and a plurality of X capacitors 2 are arranged in the accommodating space 11;
the conducting bar 3 comprises a positive busbar 31, a negative busbar 32 and a three-phase output busbar 33, and the positive electrodes of the X capacitors 2 are connected to the positive busbar 31 in parallel; the cathodes of the X capacitors 2 are connected in parallel to the cathode busbar 32;
pins are respectively arranged on the positive busbar 31, the negative busbar 32 and the three-phase output busbar 33 and extend out of the shell 1.
Further, the pins of the positive busbar 31 and the negative busbar 32 are arranged in parallel.
Further, the pins of the positive busbar 31 and the negative busbar 32 are arranged in a mirror image manner.
Further, pins of the three-phase output busbar 33 are arranged between pins of the positive busbar 31 in a staggered manner;
the pins of the three-phase output bus bar 33 are arranged between the pins of the negative bus bar 32 in a staggered manner.
Further, the three-phase output bus bar 33 includes an a-phase bus bar, a B-phase bus bar, and a C-phase bus bar.
Further, glue filling treatment is performed in the accommodating space 11.
Furthermore, epoxy resin is adopted in the glue filling treatment.
Further, the positive electrode bus bar 31 is connected with a Y capacitor 4, the positive electrode of the Y capacitor 4 is electrically connected with the positive electrode bus bar 31, and the other end of the Y capacitor is a ground end;
the negative electrode busbar 32 is connected with a Y capacitor 4, the negative electrode of the Y capacitor 4 is electrically connected with the negative electrode busbar 32, and the other end of the Y capacitor is a grounding end.
Further, the positive busbar 31 and the negative busbar 32 form a laminated structure 6, and the X capacitors 2 are distributed in the laminated structure 6.
Further, an insulating layer 5 is arranged between the positive end and the negative end of the X capacitor 2, and an insulating layer 5 is arranged between the conductive rows 3.
An electric machine comprises the integrated inverter direct current support capacitor.
A vehicle comprises the integrated inverter direct-current support capacitor and/or the motor.
From the above description, the beneficial effects of the present invention are: the power density of the motor controller is increased, the inductive conduction path is reduced, the efficiency of the inverter is increased, the number of assembled components is reduced, the assembly efficiency is increased, and the overall electric control cost is reduced through the number of the X capacitors 2; integrating the capacitor component structure and the corresponding electric control framework to realize the layout mode of a low-inductance path; the integrated current sensor is integrated, so that the shape design of the busbar is more flexible, the space and accessibility required during assembly are not required to be considered, and finally, the electric control design with high power density is achieved; a three-phase output bus bar 33 is integrated in the capacitor; relatively complex electrical connection is completed, and the complexity of the total arrangement of the motor controller is reduced; by integrating the input busbar (the positive busbar 31 and the negative busbar 32), the three output busbars, the X capacitor 2 and the Y capacitor 4, the final finished product is subjected to glue pouring treatment, the overall structural strength is greatly enhanced, the heat conduction path is increased by glue pouring, and the effect of active heat dissipation can be finally achieved by means of the design of a radiator.
Example one
An integrated inverter direct current support capacitor comprises a shell, 11X capacitors and a conducting bar;
the shell is internally provided with an accommodating space, and 11X capacitors are arranged in the accommodating space;
the conducting bar comprises a positive busbar, a negative busbar and a three-phase output busbar, and the positive electrodes of the X capacitors are connected in parallel on the positive busbar; the cathodes of the X capacitors are connected in parallel on the cathode busbar;
the positive busbar, the negative busbar and the three-phase output busbar are respectively provided with a pin, and the pins extend out of the shell.
The pins of the positive busbar and the negative busbar are arranged in parallel.
The pin mirror image arrangement of the positive busbar and the negative busbar is realized.
Pins of the three-phase output bus bar are arranged among pins of the positive bus bar in a staggered manner;
the pins of the three-phase output busbar are arranged among the pins of the negative busbar in a staggered mode.
The three-phase output bus bar comprises an A-phase bus bar, a B-phase bus bar and a C-phase bus bar.
And glue filling treatment is carried out in the accommodating space. The glue filling treatment adopts epoxy resin.
The positive electrode bus bar is connected with a Y capacitor, the positive electrode of the Y capacitor is electrically connected with the positive electrode bus bar, and the other end of the Y capacitor is a grounding end;
the negative electrode bus bar is connected with a Y capacitor, the negative electrode of the Y capacitor is electrically connected with the negative electrode bus bar, and the other end of the Y capacitor is a grounding end.
The positive busbar and the negative busbar form a laminated structure, and the X capacitors are distributed in the laminated structure.
The negative electrode of the X capacitor is arranged upwards, the positive electrode of the X capacitor is arranged downwards, and the positive electrode busbar and the negative electrode busbar form a laminated structure, so that the positive electrode busbar is positioned below the X capacitor and electrically connected with the positive electrode of the X capacitor; the negative electrode bus bar is positioned above the X capacitor and electrically connected with the negative electrode of the X capacitor; the pin parts of the positive busbar and the negative busbar extend out to form a convex structure, and the protruding parts are pins.
And an insulating layer is arranged between the positive end and the negative end of the X capacitor, and an insulating layer is arranged between the conductive bars.
The insulating layer is made of insulating paper.
Example two
An electric machine comprising the integrated inverter dc support capacitor of embodiment one.
EXAMPLE III
A vehicle comprising the integrated inverter dc support capacitor of embodiment one and/or the electric machine of embodiment two.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (7)
1. An integrated inverter direct current support capacitor is characterized by comprising a shell, a plurality of X capacitors and a conductive bar;
the shell is internally provided with an accommodating space, and the X capacitors are arranged in the accommodating space;
the conductive bar comprises a positive busbar, a negative busbar and a three-phase output busbar, and the positive electrodes of the X capacitors are connected in parallel on the positive busbar; the negative electrodes of the X capacitors are connected in parallel on the negative electrode busbar;
pins are respectively arranged on the positive busbar, the negative busbar and the three-phase output busbar, and the pins extend out of the shell;
the pins of the positive busbar and the negative busbar are arranged in parallel; the pins of the positive busbar and the negative busbar are arranged in a mirror image manner;
pins of the three-phase output bus bar are arranged among pins of the positive bus bar in a staggered manner;
the pins of the three-phase output busbar are arranged among the pins of the negative busbar in a staggered mode.
2. The integrated inverter dc support capacitor of claim 1, wherein the accommodating space is filled with glue.
3. The integrated inverter direct-current support capacitor according to claim 1, wherein a Y capacitor is connected to the positive busbar, the positive electrode of the Y capacitor is electrically connected to the positive busbar, and the other end of the Y capacitor is a ground end;
the negative electrode bus bar is connected with a Y capacitor, the negative electrode of the Y capacitor is electrically connected with the negative electrode bus bar, and the other end of the Y capacitor is a grounding end.
4. The integrated inverter dc support capacitor of claim 1, wherein the positive bus bar and the negative bus bar form a stacked structure, and the X capacitors are distributed within the stacked structure.
5. The integrated inverter dc support capacitor of claim 1, wherein the X capacitor has an insulating layer between positive and negative terminals and the conductive bars have an insulating layer between them.
6. An electrical machine comprising an integrated inverter dc support capacitor according to any of claims 1-5.
7. A vehicle comprising an integrated inverter dc support capacitor according to any of claims 1-5 and/or an electric machine according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464274.6A CN113179031B (en) | 2021-04-28 | 2021-04-28 | Integrated dc-to-ac converter direct current supports electric capacity, motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110464274.6A CN113179031B (en) | 2021-04-28 | 2021-04-28 | Integrated dc-to-ac converter direct current supports electric capacity, motor and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN113179031A CN113179031A (en) | 2021-07-27 |
| CN113179031B true CN113179031B (en) | 2022-08-19 |
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| CN202110464274.6A Active CN113179031B (en) | 2021-04-28 | 2021-04-28 | Integrated dc-to-ac converter direct current supports electric capacity, motor and vehicle |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624205A (en) * | 2012-04-16 | 2012-08-01 | 株洲南车时代电气股份有限公司 | Power module of converter |
| CN211744370U (en) * | 2020-03-31 | 2020-10-23 | 中国第一汽车股份有限公司 | Inverter assembly and electric automobile |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202997950U (en) * | 2012-12-07 | 2013-06-12 | 北京思源清能电气电子有限公司 | Single-phase bridge type inverter based on water cooling |
| CN106130316B (en) * | 2016-05-20 | 2018-08-14 | 珠海九源电力电子科技有限公司 | A kind of current transformer module based on perpendicular dress stack bus bar |
| CN206272240U (en) * | 2016-12-12 | 2017-06-20 | 北京四方继保自动化股份有限公司 | A kind of air-cooled static reacance generator power model of chain type installs case |
| CN109889058A (en) * | 2019-02-28 | 2019-06-14 | 中国第一汽车股份有限公司 | A kind of new energy vehicle inverter stream busbar |
| CN111403174B (en) * | 2020-03-25 | 2021-03-09 | 东风汽车集团有限公司 | Thin film capacitor integrating EMC (electro magnetic compatibility) and discharge functions and motor controller thereof |
-
2021
- 2021-04-28 CN CN202110464274.6A patent/CN113179031B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624205A (en) * | 2012-04-16 | 2012-08-01 | 株洲南车时代电气股份有限公司 | Power module of converter |
| CN211744370U (en) * | 2020-03-31 | 2020-10-23 | 中国第一汽车股份有限公司 | Inverter assembly and electric automobile |
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| Publication number | Publication date |
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| CN113179031A (en) | 2021-07-27 |
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Address after: 100176 floor 10, building 1, zone 2, yard 9, Taihe 3rd Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Applicant after: Beijing National New Energy Vehicle Technology Innovation Center Co.,Ltd. Address before: 100176 10th floor, building 1, Guosheng hi tech Industrial Park, yard 9, Taihe Third Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Applicant before: BEIJING NEW ENERGY VEHICLE TECHNOLOGY INNOVATION CENTER Co.,Ltd. |
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