CN113517820A - Motor controller power device and motor controller - Google Patents
Motor controller power device and motor controller Download PDFInfo
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- CN113517820A CN113517820A CN202110467632.9A CN202110467632A CN113517820A CN 113517820 A CN113517820 A CN 113517820A CN 202110467632 A CN202110467632 A CN 202110467632A CN 113517820 A CN113517820 A CN 113517820A
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- power device
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 96
- 229910052802 copper Inorganic materials 0.000 claims abstract description 96
- 239000010949 copper Substances 0.000 claims abstract description 96
- 230000017525 heat dissipation Effects 0.000 claims abstract description 42
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 238000005192 partition Methods 0.000 claims abstract description 22
- 239000002826 coolant Substances 0.000 claims abstract description 9
- 238000001816 cooling Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The invention discloses a motor controller power device and a motor controller. The motor controller power device includes: the main box body is divided into an upper cavity and a lower cavity by a partition plate, and the upper cavity and the lower cavity respectively comprise a capacitor mounting area, a heat dissipation area and a copper bar leading-out area; the upper cavity capacitor and the lower cavity capacitor are arranged in the capacitor mounting area; the upper cavity power module and the lower cavity power module are arranged in the heat dissipation area, and a cooling medium flow passage is arranged in a partition plate positioned in the range of the heat dissipation area so as to dissipate heat of the upper cavity power module and the lower cavity power module; the positive and negative input copper bar is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with an upper cavity capacitor and a lower cavity capacitor; the first three-phase output copper bar is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with the upper cavity power module and the lower cavity power module. The motor controller power device can realize a high-power inverter, and has the advantages of reasonable layout, small volume, strong heat dissipation capability, high integration level and easy installation.
Description
Technical Field
The invention relates to the technical field of motor controllers, in particular to a motor controller power device and a motor controller.
Background
The motor controller is an integrated circuit used for controlling the motor to work according to set direction, speed, angle and response time. In the electric vehicle, the motor controller is used for converting the electric energy stored in the power battery into the electric energy required by the driving motor according to instructions of gears, an accelerator, a brake and the like so as to control the running states of the electric vehicle such as starting operation, advancing and retreating speed, climbing force and the like, or assist the electric vehicle to brake and store part of brake energy into the power battery.
The power control is needed to be carried out on the motor controller, the existing motor controller power device can not realize an inverter with a larger power grade, and the motor controller power device capable of realizing the inverter with the large power grade has the problems of complex structure, larger volume, inconvenient installation, higher cost and poor heat dissipation performance.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a motor controller power device and a motor controller, which can realize a high-power inverter, and have the advantages of reasonable layout, small volume, strong heat dissipation capability, high integration level and easy installation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a motor controller power device comprising:
the main box body is divided into an upper cavity and a lower cavity by a partition plate, and the upper cavity and the lower cavity respectively comprise a capacitor mounting area, a heat dissipation area and a copper bar leading-out area which are sequentially arranged along a first direction;
an upper cavity capacitor and a lower cavity capacitor respectively arranged in the capacitor mounting areas of the upper cavity and the lower cavity;
the upper cavity power module and the lower cavity power module are respectively arranged in the heat dissipation areas of the upper cavity and the lower cavity, and a cooling medium flow passage is arranged in the partition plate positioned in the range of the heat dissipation areas so as to dissipate heat of the upper cavity power module and the lower cavity power module;
the positive and negative input copper bar is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with the upper cavity capacitor and the lower cavity capacitor;
the first three-phase output copper bar is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with the upper cavity power module and the lower cavity power module.
As an alternative of the power device of the motor controller, the upper cavity power module and the lower cavity power module respectively include a driving unit, a busbar assembly and a power unit, which are sequentially stacked along a second direction, the second direction is perpendicular to the first direction, the driving unit and the busbar assembly are respectively connected with the power unit, and the power unit is attached to the partition plate.
As an alternative of the above motor controller power device, the power unit includes a power device, an insulating plate, and a cooling bottom plate, which are sequentially stacked in the second direction, and the cooling bottom plate is fixed to the insulating plate.
As an alternative of the power device of the motor controller, a heat dissipation window is formed in the position, corresponding to the heat dissipation surface of the power device, of the insulating plate, and the heat dissipation surface of the power device is connected with the cooling bottom plate through the heat dissipation window.
As an alternative to the above motor controller power apparatus, the power device includes a plurality of power switching devices, and the plurality of power switching devices are arranged in a row.
As an alternative of the power device of the motor controller, the busbar assembly includes a second three-phase output copper bar, a positive input copper bar and a negative input copper bar which are sequentially stacked along the second direction;
the positive power terminal of the power device is connected with the positive input copper bar; the negative power terminal of the power device is connected with the negative input copper bar; and a phase line output power terminal of the power device is connected with the second three-phase output copper bar.
As an alternative of the above-mentioned power device of the motor controller, the second three-phase output copper bar and the negative input copper bar are both provided with insulating holes for the signal terminals of the power device to pass through.
As an alternative of the above-mentioned power device of the motor controller, the second three-phase output copper bar, the positive input copper bar and the negative input copper bar are provided with insulating spacers therebetween, and the second three-phase output copper bar, the positive input copper bar and the negative input copper bar are supported and fixed by the insulating spacers or are integrally injection-molded.
As an alternative of the above-mentioned motor controller power device, the copper bar lead-out area is provided with a copper bar avoiding hole, so that the first three-phase output copper bar passes the copper bar avoiding hole is connected with the motor phase line.
A motor controller comprising a motor controller power arrangement as described above.
The invention has the advantages that: the main box body comprises an upper cavity and a lower cavity, the upper cavity and the lower cavity are respectively internally provided with an upper cavity power module and a lower cavity power module, and the arrangement of the plurality of power modules enables the motor controller power device to realize an inverter with higher power; meanwhile, the upper cavity power module and the lower cavity power module share the cooling medium flow channel on the partition plate for heat dissipation, so that the heat dissipation of each power module can be better ensured, and the volume of the whole device can be reduced; the power device of the motor controller has the advantages of reasonable layout, small volume, strong heat dissipation capability, high integration level and easy installation.
Drawings
FIG. 1 is an exploded schematic view of an embodiment of a motor controller power plant according to the present invention;
FIG. 2 is a schematic diagram of the motor controller power device of the present invention with the main housing removed;
FIG. 3 is a schematic structural diagram of an upper cavity power module according to the present invention;
FIG. 4 is an exploded view of the power unit of the present invention;
FIG. 5 is an exploded view of the busbar assembly of the present invention;
FIG. 6 is an exploded view of a portion of the motor controller power plant of the present invention;
FIG. 7 is an exploded view of the main housing and power unit of the present invention;
FIG. 8 is an exploded view of the main housing, the upper cavity power module and the lower cavity power module of the present invention;
fig. 9 is a schematic structural view of the main case of the present invention.
In the figure:
1. an upper cavity power module; 101. a drive unit; 102. a busbar assembly; 1021. negative input copper bars; 1022. copper bars are input in a positive mode; 1023. a second three-phase output copper bar; 1024. an insulating hole; 103. a power unit; 1031. a power device; 1032. an insulating plate; 1033. cooling the bottom plate; 1034. a power switching device; 2. an upper cavity capacitance; 3. a main box body; 31. a partition plate; 301. a copper bar leading-out area; 3011. copper bar avoiding holes; 302. a heat dissipation area; 303. a capacitor mounting area; 4. a first three-phase output copper bar; 5. positive and negative input copper bars; 6. a lower cavity capacitance; 7. a lower cavity power module.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The invention provides a motor controller power device, fig. 1 is an exploded structure schematic diagram of a motor controller power device in an embodiment of the invention, and fig. 2 is a structure schematic diagram of the motor controller power device with a main box removed. As shown in fig. 1 and 2, the power device of the motor controller includes a main box 3, an upper cavity capacitor 2, a lower cavity capacitor 6, an upper cavity power module 1, a lower cavity power module 7, a positive-negative input copper bar 5, and a first three-phase output copper bar 4. For convenience of description, the first direction, the second direction and the third direction shown in fig. 1 are defined, and the first direction, the second direction and the third direction are perpendicular to each other in pairs, which can be understood as the X direction, the Y direction and the Z direction in the space coordinate system, and can also be understood as the front-back direction, the up-down direction and the left-right direction of the motor controller power device.
As shown in fig. 1, the main box 3 is divided into an upper cavity and a lower cavity by a partition plate 31, and as shown in fig. 1 and 9, the upper cavity and the lower cavity each include a capacitor mounting region 303, a heat dissipation region 302, and a copper bar lead-out region 301, which are sequentially arranged along a first direction. The capacitor mounting area 303, the heat dissipation area 302 and the copper bar leading-out area 301 in the upper cavity correspond to the capacitor mounting area 303, the heat dissipation area 302 and the copper bar leading-out area 301 in the lower cavity one to one.
Referring to fig. 1 and 9, the upper cavity capacitor 2 is disposed in the capacitor mounting region 303 of the upper cavity, and the lower cavity capacitor 6 is disposed in the capacitor mounting region 303 of the lower cavity. The upper and lower cavity capacitors 2 and 6 are attached to the main housing 3, for example, to the partition 31, so as to dissipate heat by the main housing 3.
The upper cavity power module 1 is arranged in the heat dissipation area 302 of the upper cavity, and the lower cavity power module 7 is arranged in the heat dissipation area 302 of the lower cavity. A cooling medium flow channel is provided in the partition plate 31 located in the range of the heat dissipation area 302, and a cooling medium (for example, water) flows through the cooling medium flow channel, so that heat dissipation can be performed on the upper cavity power module 1 and the lower cavity power module 7. Because the upper cavity power module 1 and the lower cavity power module 7 are respectively arranged at the upper side and the lower side of the partition plate 31, the cooling medium flow channel in the partition plate 31 can be shared for heat dissipation, so that the space can be saved, the whole structure is more compact, and the installation is convenient. The upper cavity power module 1 and the lower cavity power module 7 are tightly attached to the partition plate 31 and tightly pressed with the partition plate 31, so that the heat dissipation effect is improved. In the invention, two power modules, namely an upper cavity power module 1 and a lower cavity power module 7, are arranged and connected in parallel, so that the power level is improved, a high-power inverter is realized, and the problem of insufficient power current capability of a single module or a device is solved.
As shown in fig. 1 and 2, the positive and negative input copper bar 5 is divided into an upper portion and a lower portion, the upper portion and the lower portion are connected by bolts, the upper portion and the lower portion are respectively connected with the upper cavity capacitor 2 and the lower cavity capacitor 6, that is, the upper cavity capacitor 2 is structurally connected with the upper portion of the positive and negative input copper bar 5, the lower cavity capacitor 6 is structurally connected with the lower portion of the positive and negative input copper bar 5, and the positive and negative input currents of the upper cavity capacitor 2 and the lower cavity capacitor 6 are collected and finally connected with the positive terminal and the negative terminal of the high-voltage battery. The upper part and the lower part are isometric and symmetrical. The connection mode between the capacitor and the positive and negative input copper bars 5 can adopt bolt connection. And the positive and negative input copper bars 5 are connected to one side of the capacitor along the third direction.
With continued reference to fig. 1 and 2, the first three-phase output copper bar 4 is also divided into an upper part and a lower part, the upper part and the lower part are connected by bolts, the upper part and the lower part are respectively connected with the upper cavity power module 1 and the lower cavity power module 7, that is, the upper cavity power module 1 is structurally connected with the upper part of the first three-phase output copper bar 4, the lower cavity power module 7 is structurally connected with the lower part of the first three-phase output copper bar 4, and the three-phase output currents of the upper cavity power module 1 and the lower cavity power module 7 are collected by the first three-phase output copper bar 4 and finally connected with the phase line of the motor. As shown in fig. 1, the upper and lower portions of the first three-phase output copper bar 4 are equilong and symmetrical. The power module and the first three-phase output copper bar 4 can be connected by bolts. The capacitor is located at one end of the power module along the first direction, and the first three-phase output copper bar 4 is located at the other end of the power module along the first direction, so that the design is favorable for arrangement and installation of the whole structure.
The upper cavity power module 1 and the lower cavity power module 7 have the same structure, fig. 8 is an exploded structural schematic diagram of the main box body, the upper cavity power module and the lower cavity power module in the invention, and as shown in fig. 8, the upper cavity power module 1 and the lower cavity power module 7 are arranged in the upper cavity and the lower cavity of the main box body 3 in a vertically symmetrical manner. Since the upper cavity power module 1 and the lower cavity power module 7 have the same structure, the structure is specifically described by taking the upper cavity power module 1 as an example in the present invention. Fig. 3 is a schematic structural diagram of the upper cavity power module 1 according to the present invention, and as shown in fig. 3, the upper cavity power module 1 and the lower cavity power module 7 each include a driving unit 101, a busbar assembly 102, and a power unit 103 sequentially stacked along a second direction, and the power unit 103 is closest to the partition plate 31 and attached to the partition plate 31, so as to perform better heat dissipation on the power unit 103 by using a cooling medium channel in the partition plate 31. The driving unit 101 and the busbar assembly 102 are connected to the power unit 103. In the invention, the driving unit 101, the busbar assembly 102 and the power unit 103 are sequentially stacked, so that power, signals, detection and heat dissipation are layered, and coupling interference of the four is reduced.
Fig. 4 is an exploded view of the power unit of the present invention. As shown in fig. 4, the power unit 103 includes a power device 1031, an insulating plate 1032, and a cooling bottom plate 1033 stacked in this order in the second direction, and the cooling bottom plate 1033 is fixed to the partition plate 31. Referring to fig. 4, the power device 1031 includes a plurality of power switches 1034, the number of the power switches 1034 may be set according to actual needs, and the plurality of power switches 1034 are arranged in rows, so that power scalability is good. As shown in fig. 7, the power units 103 on the upper and lower sides of the main body case 3 are symmetrically arranged.
The insulating plate 1032 is provided with a heat dissipation window at a position corresponding to the heat dissipation surface of the power device 1031. As shown in fig. 4, since the power device 1031 includes a plurality of power switch devices 1034 arranged in rows, a plurality of heat dissipation windows arranged in rows are correspondingly arranged on the insulating plate 1032, and the heat dissipation surface of the power device 1031 is connected to the cooling bottom plate 1033 through the heat dissipation windows, and the connection manner may be silver sintering or tin soldering. Finally, the power device 1031 is fixed and dissipates heat by the cooling bottom plate 1033.
Fig. 5 is an exploded view of the busbar assembly according to the present invention. As shown in fig. 5, the busbar assembly 102 includes a second three-phase output copper bar 1023, a positive input copper bar 1022 and a negative input copper bar 1021 stacked in sequence along the second direction. The positive power terminal of power device 1031 is connected with positive input copper bar 1022, and the negative power terminal of power device 1031 is connected with negative input copper bar 1021, and the phase line output power terminal of power device 1031 is connected with second three-phase output copper bar 1023. In addition, as shown in fig. 6, the second three-phase output copper bar 1023 and the negative input copper bar 1021 are both provided with an insulation hole 1024 for other signal terminals on the power device 1031 to pass through, and the other signal terminals on the power device 1031 are connected with the driving unit 101 after passing through the insulation hole 1024. It can be understood that, as shown in fig. 2, the first three-phase output copper bar 4 is connected with the second three-phase output copper bar 1023, so that the first three-phase output copper bar 4 collects the three-phase output currents of the upper cavity power module 1 and the lower cavity power module 7, and finally is connected with the motor phase line.
In one embodiment, an insulating spacer is disposed between the second three-phase output copper bar 1023, the positive input copper bar 1022 and the negative input copper bar 1021, and the second three-phase output copper bar 1023, the positive input copper bar 1022 and the negative input copper bar 1021 are supported and fixed by the insulating spacer. In other embodiments, the second three-phase output copper bar 1023, the positive input copper bar 1022 and the negative input copper bar 1021 can also be integrally injection molded.
Referring to fig. 1 and 9, the copper bar leading-out area 301 is provided with a copper bar avoiding hole 3011, and the first three-phase output copper bar 4 passes through the copper bar avoiding hole 3011 and is connected with the motor phase line.
The motor controller power device provided by the invention has the advantages of reasonable packaging, reasonable layout, small volume, strong heat dissipation capability, high integration level, easiness in installation, easiness in controlling the cost according to the system power level and cost reduction. The motor controller power device has the advantages of simple and convenient structure, high power, good shock resistance, good heat dissipation performance, high integration level and lower cost.
The invention also provides a motor controller which comprises the motor controller power device. Since the motor controller of the present invention includes the motor controller power device, the motor controller has at least the beneficial effects of the motor controller power device, and the detailed description is not repeated herein.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A motor controller power device, comprising:
the main box body (3) is divided into an upper cavity and a lower cavity by a partition plate (31), and the upper cavity and the lower cavity respectively comprise a capacitor mounting area (303), a heat dissipation area (302) and a copper bar leading-out area (301) which are sequentially arranged along a first direction;
an upper cavity capacitor (2) and a lower cavity capacitor (6) which are respectively arranged in the capacitor mounting areas (303) of the upper cavity and the lower cavity;
the upper cavity power module (1) and the lower cavity power module (7) are respectively arranged in the heat dissipation areas (302) of the upper cavity and the lower cavity, and a cooling medium flow channel is arranged in the partition plate (31) positioned in the range of the heat dissipation areas (302) so as to dissipate heat of the upper cavity power module (1) and the lower cavity power module (7);
the positive and negative input copper bar (5) is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with the upper cavity capacitor (2) and the lower cavity capacitor (6);
the first three-phase output copper bar (4) is divided into an upper part and a lower part, and the upper part and the lower part are respectively connected with the upper cavity power module (1) and the lower cavity power module (7).
2. The power device of the motor controller according to claim 1, wherein the upper cavity power module (1) and the lower cavity power module (7) each include a driving unit (101), a busbar assembly (102), and a power unit (103) sequentially stacked along a second direction, the second direction is perpendicular to the first direction, the driving unit (101) and the busbar assembly (102) are connected to the power unit (103), and the power unit (103) is attached to the partition plate (31).
3. The motor controller power device according to claim 2, wherein the power unit (103) includes power devices (1031), an insulating plate (1032), and a cooling bottom plate (1033) stacked in this order in the second direction, and the cooling bottom plate (1033) is fixed to the partition plate (31).
4. The power device of a motor controller according to claim 3, wherein a heat dissipation window is opened on the insulation board (1032) at a position corresponding to the heat dissipation surface of the power device (1031), and the heat dissipation surface of the power device (1031) is connected to the cooling bottom board (1033) through the heat dissipation window.
5. The motor controller power arrangement according to claim 3, characterized in that the power device (1031) comprises a plurality of power switches (1034), the plurality of power switches (1034) being arranged in a row.
6. The motor controller power device according to claim 3, wherein the busbar assembly (102) comprises a second three-phase output copper bar (1023), a positive input copper bar (1022) and a negative input copper bar (1021) which are sequentially stacked along the second direction;
the positive power terminal of the power device (1031) is connected with the positive input copper bar (1022); the negative power terminal of the power device (1031) is connected with the negative input copper bar (1021); and a phase line output power terminal of the power device (1031) is connected with the second three-phase output copper bar (1023).
7. The device of claim 6, wherein the second three-phase output copper bar (1023) and the negative input copper bar (1021) are provided with insulation holes (1024) for signal terminals of the power device (1031) to pass through.
8. The motor controller power device according to claim 6, wherein an insulating gasket is disposed between the second three-phase output copper bar (1023), the positive input copper bar (1022) and the negative input copper bar (1021), the second three-phase output copper bar (1023), the positive input copper bar (1022) and the negative input copper bar (1021) are supported and fixed by the insulating gasket, or the second three-phase output copper bar (1023), the positive input copper bar (1022) and the negative input copper bar (1021) are integrally injection-molded.
9. The motor controller power device according to claim 1, wherein the copper bar leading-out area (301) is provided with a copper bar avoiding hole (3011) so that the first three-phase output copper bar (4) passes through the copper bar avoiding hole (3011) to be connected with a motor phase line.
10. A motor controller comprising a motor controller power plant according to any of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467632.9A CN113517820A (en) | 2021-04-28 | 2021-04-28 | Motor controller power device and motor controller |
| PCT/CN2021/139477 WO2022227631A1 (en) | 2021-04-28 | 2021-12-20 | Power device for electric motor controller, and electric motor controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110467632.9A CN113517820A (en) | 2021-04-28 | 2021-04-28 | Motor controller power device and motor controller |
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| Publication Number | Publication Date |
|---|---|
| CN113517820A true CN113517820A (en) | 2021-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110467632.9A Pending CN113517820A (en) | 2021-04-28 | 2021-04-28 | Motor controller power device and motor controller |
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| Country | Link |
|---|---|
| CN (1) | CN113517820A (en) |
| WO (1) | WO2022227631A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022227631A1 (en) * | 2021-04-28 | 2022-11-03 | 中国第一汽车股份有限公司 | Power device for electric motor controller, and electric motor controller |
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Also Published As
| Publication number | Publication date |
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| WO2022227631A1 (en) | 2022-11-03 |
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