CN219999217U - Integrated inverter power assembly - Google Patents

Integrated inverter power assembly Download PDF

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Publication number
CN219999217U
CN219999217U CN202321696789.XU CN202321696789U CN219999217U CN 219999217 U CN219999217 U CN 219999217U CN 202321696789 U CN202321696789 U CN 202321696789U CN 219999217 U CN219999217 U CN 219999217U
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China
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main body
thin film
magnetic ring
assembly
film capacitor
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CN202321696789.XU
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Chinese (zh)
Inventor
秦基伟
董大伟
陈登峰
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Shanghai Auto Edrive Co Ltd
Shanghai Auto Edrive Engineering Technology Research Center
Shanghai Edrive Co Ltd
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Shanghai Auto Edrive Co Ltd
Shanghai Auto Edrive Engineering Technology Research Center
Shanghai Edrive Co Ltd
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Priority to CN202321696789.XU priority Critical patent/CN219999217U/en
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Abstract

The utility model relates to an integrated inversion power assembly, which comprises a bottom plate assembly, a direct current filter, a module assembly, a shielding plate and a module control unit, wherein one side of the bottom plate assembly is provided with a thin film capacitor main body, the other side of the bottom plate assembly is a power module matching surface, a cooling liquid groove is arranged in the middle of the power module matching surface, the cooling liquid groove is a rectangular groove, a cooling liquid water inlet and a cooling liquid water outlet are arranged on two wide sides of the rectangular groove, the cooling liquid water inlet and the cooling liquid water outlet vertically penetrate through the bottom plate assembly downwards from two sides of the rectangular groove, and a sealing groove is further arranged outside the rectangular groove. Compared with the prior art, the utility model has the advantages of high integration level and the like.

Description

Integrated inverter power assembly
Technical Field
The utility model relates to the technical field of new energy automobile electric drive systems, in particular to an integrated inverter power assembly.
Background
The motor controller is one of key parts of the new energy automobile, and the main parts in the motor controller, namely the inversion power assembly and other parts (such as DCDC, OBC, PDU and the like) of the whole automobile are integrated together, so that the integration level of the whole automobile can be improved, the light-weight design of the whole automobile is realized, and the cost is reduced, and therefore, the motor controller is one of the future development trends of the motor controller. Such a controller integrated with a plurality of component functions is generally called an all-in-one controller. In recent years, many whole factories have begun to develop all-in-one controllers autonomously. However, due to the insufficient technical reserves of the current whole vehicle factories for the inverter power components, it is still necessary to purchase the integrated inverter power components from the electric drive suppliers and then integrate the inverter power components as a subsystem with independent functions into the all-in-one controller.
To meet the needs of the whole vehicle factories for the inverter power components, multiple home drive suppliers have developed related products.
CN 216437873U discloses a motor controller and an automobile, but the following problems are also present: 1) The inverter power component is not integrated with a direct current filter generally, so that a whole vehicle factory is required to independently design the direct current filter component and then integrate the direct current filter component into the all-in-one controller.
2) The length direction size of the inversion power assembly is larger, and the water inlet and the water outlet are upwards arranged, so that the arrangement difficulty of the inversion power assembly in the all-in-one controller is increased, and the miniaturization and the light-weight design of the all-in-one controller are not facilitated.
3) Because the film capacitor is clamped in the embedded groove of the box body, the connection reliability is poor.
Disclosure of Invention
The present utility model is directed to an integrated inverter power assembly that overcomes the above-mentioned drawbacks of the prior art.
The aim of the utility model can be achieved by the following technical scheme:
an integrated inversion power assembly comprises a bottom plate assembly, a direct current filter, a module assembly, a shielding plate and a module control unit, wherein one side of the bottom plate assembly is provided with a thin film capacitor main body, the other side of the bottom plate assembly is provided with a power module matching surface, a cooling liquid groove is arranged in the middle of the power module matching surface, the module assembly, the shielding plate and the module control unit are sequentially overlapped on the power module matching surface from low to high, and the height of the top surface of the thin film capacitor main body is larger than that of the power module matching surface;
a direct current filter is fixed on the thin film capacitor main body, one side of the thin film capacitor main body is provided with a thin film capacitor output terminal, a grounding terminal and an output terminal bracket which is tightly attached to the thin film capacitor main body and is embedded on the bottom plate component, and the thin film capacitor main body, the thin film capacitor output terminal, the grounding terminal and the output terminal bracket are embedded on the bottom plate component.
Further, the cooling liquid groove is a rectangular groove, a cooling liquid water inlet and a cooling liquid water outlet are formed in two wide sides of the rectangular groove, the cooling liquid water inlet and the cooling liquid water outlet vertically penetrate through the bottom plate assembly downwards from two sides of the rectangular groove, a sealing groove is further formed in the outer side of the rectangular groove, and a sealing ring is arranged in the sealing groove.
Further, the thin film capacitor output terminal is arranged on the output terminal support, the grounding terminal is arranged on one side of the output terminal support and clings to the thin film capacitor main body, the thin film capacitor input terminal is further arranged on one side of the thin film capacitor main body and is encapsulated on the bottom plate assembly, and the thin film capacitor input terminal is electrically connected with the busbar of the direct current filter.
Further, the direct current filter comprises a filter bracket, a first-order magnetic ring, a busbar, a first-order Y capacitor, a second-order magnetic ring, a second-order Y capacitor and a third-order magnetic ring;
wherein the filter support is of a symmetrical structure, the filter support comprises a support main body, a magnetic ring groove is arranged on one side of the support main body, a busbar groove is arranged in the middle of the outer side of the magnetic ring groove, a capacitor groove is arranged on the support main body on the inner side of the magnetic ring groove, a grounding row is arranged on the top surface of the capacitor groove, a busbar switching row is arranged on the outer side of the grounding row,
the structure of the other side of the bracket main body is the same as that of the other side, a magnetic ring groove is arranged in the middle of the magnetic ring grooves on the two sides of the bracket main body, and the three magnetic ring grooves are arranged in parallel;
the grounding row on one side of the support body is a first grounding row, and the grounding row on the other side of the support body is a second grounding row.
Further, the first-order magnetic ring and the third-order magnetic ring are respectively arranged in the magnetic ring grooves at two sides of the bracket main body, the second-order magnetic ring is arranged in the magnetic ring groove in the middle of the bracket main body, the first-order Y capacitor and the second-order Y capacitor are respectively arranged in the capacitor grooves at two sides of the bracket main body, and the busbar horizontally passes through the busbar groove along the direction of the magnetic ring.
Further, pins of the first-order Y capacitor and the second-order Y capacitor are respectively welded on needle corners of the first grounding row, the second grounding row and the bus switching row nearby, two ends of the first grounding row and two ends of the second grounding row are respectively led out of one needle corner, and each bus switching row is provided with one needle corner.
Further, the module assembly comprises a power board, a power module, a current sensor and a three-phase copper bar, the power board is welded with a pin header,
the power module of the module assembly is fixed on the matching surface of the power module, and the thin film capacitor output terminal is electrically connected with the input terminal of the power module through a fixing screw.
Further, the current sensor is positioned on the side surface of the module assembly, and the three-phase copper bar passes through the square through hole on the current sensor; the power plate is fixed on the power module through screws, and the power plate is welded with pins of the power module.
Further, be equipped with the shield plate fixed column on the bottom plate subassembly, the both sides of coolant bath are located to shield plate fixed column symmetry, and the both sides of every shield plate fixed column are equipped with the gusset, and the fixed orifices that set up on the shield plate are passed to the shield plate fixed column, and the shield plate is fixed on the shield plate fixed column.
Further, a busbar is arranged on the module control unit and is electrically connected with the row pins on the power board.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The cooling liquid water inlet and the cooling liquid water outlet are respectively positioned at two ends of the cooling liquid groove. And the cooling liquid water inlet and the cooling liquid water outlet are in a structure form of vertically penetrating through the bottom plate assembly, compared with the prior water inlet and water outlet which are upwards arranged, the structure of the utility model is simpler, the size in the length direction is smaller, and the integration level is higher.
(2) The direct current filter is fixed on the thin film capacitor main body, the functions of the inversion power assembly are expanded, the direct current filter is integrated with the filter support, the first-order magnetic ring, the busbar, the first-order Y capacitor, the second-order magnetic ring, the second-order Y capacitor and the third-order magnetic ring, the direct current filter formed by the filter support and each filtering assembly is high in integration level, and the whole machine is small in size.
(3) The thin film capacitor main body, the thin film capacitor output terminal, the grounding terminal and the output terminal bracket are encapsulated on the bottom plate component, so that the thin film capacitor is high in connection reliability and compact in structure.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a base plate assembly according to the present utility model;
FIG. 3 is a schematic diagram of a DC filter according to the present utility model;
FIG. 4 is a schematic view of a filter holder according to the present utility model;
FIG. 5 is a schematic diagram of a modular assembly;
in the figure, a base plate assembly 1, a direct current filter 2, a module assembly 3, a shielding plate 4, a module control unit 5, a film capacitor main body 11, a film capacitor input terminal 12, a ground terminal 13, an output terminal bracket 14, a film capacitor output terminal 15, a sealing groove 16, a cooling liquid groove 17, a cooling liquid inlet 18, a shielding plate fixing column 19, a power module matching surface 110, a cooling liquid outlet 111, a first-order magnetic ring 21, two busbar 22, two first-order Y capacitors 23, a second-order magnetic ring 24, a second-order Y capacitor 25, a third-order magnetic ring 26, a filter bracket 27, wherein the filter bracket 27 comprises a bracket main body 271, first grounding bars 272,4 busbar switching bars 273, second grounding bars 274, a power plate 31, a power module 32, a current sensor 33, three-phase copper bars 34, pin bars 35 and busbar 51.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.
The utility model provides an integrated inverter power assembly, and a structural diagram of the assembly is shown in figure 1. The assembly comprises a base plate assembly 1, a direct current filter 2, a module assembly 3, a shielding plate 4 and a module control unit 5.
A schematic diagram of the base plate assembly is shown in fig. 2. One side of the bottom plate assembly 1 is provided with a thin film capacitor main body 11, the other side is provided with a power module matching surface 110, a cooling liquid groove 17 is formed in the middle of the power module matching surface 110, the power module matching surface 110 is sequentially overlapped with the module assembly 3, the shielding plate 4 and the module control unit 5 from low to high, and the height of the top surface of the thin film capacitor main body 11 is larger than that of the power module matching surface 110. The cooling liquid groove 17 is a rectangular groove, the wide two sides of the rectangular groove are provided with a cooling liquid water inlet 18 and a cooling liquid water outlet 111, the cooling liquid water inlet 18 and the cooling liquid water outlet 111 vertically penetrate through the bottom plate assembly 1 downwards from the two sides of the rectangular groove, and a sealing groove 16 is further arranged outside the rectangular groove. A sealing ring is arranged in the sealing groove 16. Because the cooling liquid water inlet 18 and the cooling liquid water outlet 111 are both vertically penetrating through the bottom plate assembly 1, compared with the prior art, the structure is simpler, and the length direction size is smaller.
The direct current filter 2 is fixed on the thin film capacitor main body 11, one side of the thin film capacitor main body 11 is provided with a thin film capacitor output terminal 15, a grounding terminal 13 and an output terminal bracket 14 which is tightly attached to the thin film capacitor main body 11 and is embedded on the bottom plate assembly 1, and the thin film capacitor main body 11, the thin film capacitor output terminal 15, the grounding terminal 13 and the output terminal bracket 14 are encapsulated on the bottom plate assembly 1.
The thin film capacitor output terminal 15 is arranged on the output terminal bracket 14, the grounding terminal 13 is arranged on one side of the output terminal bracket 14 and is clung to the thin film capacitor main body 11, the thin film capacitor input terminal 12 is further arranged on one side of the thin film capacitor main body 11, the thin film capacitor input terminal 12 is encapsulated on the bottom plate component 1, and the thin film capacitor input terminal 12 is electrically connected with the busbar 22 of the direct current filter 2.
The structure of the dc filter is schematically shown in fig. 3, and the dc filter 2 includes a filter support 27, a first-order magnetic ring 21, a busbar 22, a first-order Y capacitor 23, a second-order magnetic ring 24, a second-order Y capacitor 25, and a third-order magnetic ring 26.
A schematic view of the filter holder is shown in fig. 4. The filter support 27 is of a symmetrical structure, the filter support 27 comprises a support main body 271, a magnetic ring groove is formed in one side of the support main body 271, a busbar groove is formed in the middle of the outer side of the magnetic ring groove, a capacitor groove is formed in the support main body 271 on the inner side of the magnetic ring groove, a grounding row is arranged on the top surface of the capacitor groove, a bus switching row 273 is arranged on the outer side of the grounding row, the structure of the other side of the support main body 271 is the same as that of the other side, a magnetic ring groove is further formed in the middle of the magnetic ring grooves on the two sides of the support main body 271, and three magnetic ring grooves are arranged in parallel; the ground row on one side of the holder body 271 is a first ground row 272, and the ground row on the other side of the holder body 271 is a second ground row 274.
The first-order magnetic ring 21 and the third-order magnetic ring 26 are respectively arranged in magnetic ring grooves on two sides of the bracket main body 271, the second-order magnetic ring 24 is arranged in a magnetic ring groove in the middle of the bracket main body 271, the first-order Y capacitor 23 and the second-order Y capacitor 25 are respectively arranged in capacitor grooves on two sides of the bracket main body 271, and the busbar 22 horizontally passes through the busbar grooves along the direction of the magnetic ring.
Pins of the first-order Y capacitor 23 and the second-order Y capacitor 25 are respectively welded on needle corners of the first grounding row 272, the second grounding row 274 and the bus switching row 273 nearby, two ends of the first grounding row 272 and the second grounding row 274 respectively lead out a needle corner, and each bus switching row 273 is provided with a needle corner.
In some embodiments, the busbar 22 is 2, the first order Y-capacitance 23 is 2, and the second order Y-capacitance 25 is 2. The number of the magnetic rings and the Y capacitors can be adjusted according to the EMC requirement, the number of the magnetic rings is 1-3, and the number of the Y capacitors is 2 or 4.
A schematic diagram of the modular assembly is shown in fig. 5. The module assembly 3 comprises a power board 31, a power module 32, a current sensor 33 and a three-phase copper bar 34, wherein pins 35 are welded on the power board 31,
the power module 32 of the module assembly 3 is fixed on the power module mating surface 110, and the thin film capacitor output terminal 15 and the input terminal of the power module 32 are electrically connected through a fixing screw. The current sensor 33 is located at the side of the module assembly 3, and the three-phase copper bar 34 passes through a square through hole above the current sensor 33.
The power board 31 is fixed on the power module 32 by screws, and the power board 31 is welded with pins of the power module 32. Be equipped with shield plate fixed column 19 on the bottom plate subassembly 1, the both sides of coolant bath 17 are located to shield plate fixed column 19 symmetry, and the both sides of every shield plate fixed column 19 are equipped with the gusset, and shield plate fixed column 19 passes the fixed orifices that sets up on the shield plate 4, and the shield plate 4 is fixed on shield plate fixed column 19. The module control unit 5 is provided with a row bus 51, and the row bus 51 is electrically connected with the row pins 35 on the power board 31.
The assembly process of the utility model is as follows:
1 is fitted with a dc filter 2. Firstly, the first-order magnetic ring 21, the second-order magnetic ring 24, the third-order magnetic ring 26, the first-order Y capacitor 23 and the second-order Y capacitor 25 are fixed at corresponding positions on a bracket 27 by potting adhesive; two busbar 22 are horizontally inserted into the filter bracket 27 along the direction of the first-order magnetic ring 21 and are fixed on the filter bracket 27 by screws; then, the pins of the first-order Y capacitor 23 and the second-order Y capacitor 25 are respectively and closely welded on the pins of the first grounding row 272, the bus transfer row 273 and the second grounding row 274.
2 the dc filter 2 is fixed above the thin film capacitor body 11 of the chassis assembly 1.
3 an O-ring seal is mounted in the seal groove 16 of the base plate assembly 1.
4, fixing the power module 32 on the power module matching surface 110 of the base plate assembly 1, and then electrically connecting the thin film capacitor output terminal 15 of the base plate assembly 1 with the input terminal of the power module 32 through a fixing screw.
And 5, performing water channel airtight test of the inversion power assembly.
6, mounting the current sensor 33 on the power module 32, sequentially passing 3 three-phase copper bars 34 through three square through holes on the current sensor 33, and fixing the current sensor 33 and the copper bars 34 on the bottom plate assembly 1 together through screws.
7 the power board 31 is fixed on the power module 32 by screws, and then the power board 31 and the pins on the power module 32 are welded together.
8 secure the shield plate 4 to the shield plate securing posts 19 of the backplane assembly 1.
9 mounting the module control unit 5 on the shielding plate 4, ensuring that the row bus 51 on the module control unit 5 and the row pins 35 on the power board are inserted, and then fixing the module control unit on the shielding plate 4 by using screws.
The utility model adds the direct current filter on the inversion power component, expands the function of the inversion power component, and makes the whole vehicle factory not need to design and integrate the direct current filter independently. The inversion power assembly adopts a modularized design, and the overall dimension is smaller, so that the arrangement of the inversion power assembly in the all-in-one controller is facilitated. The thin film capacitor main body is directly encapsulated in the bottom plate assembly, and has high connection reliability and compact structure. The thin film capacitor body 11, the thin film capacitor output terminal 15, the grounding terminal 13 and the output terminal support 14 which is tightly attached to the thin film capacitor body 11 and embedded on the bottom plate component 1 are compact in connection, the integration level is high, meanwhile, the filter support 27 is of a symmetrical structure, the filter support 27 comprises a support body 271, a magnetic ring groove is formed in one side of the support body 271, a busbar groove is formed in the middle of the outer side of the magnetic ring groove, a capacitor groove is formed in the support body 271 on the inner side of the magnetic ring groove, a grounding row is arranged on the top surface of the capacitor groove, a busbar switching row 273 is arranged on the outer side of the grounding row, the structure of the other side of the support body 271 is identical to that of the side, a magnetic ring groove is further arranged in the middle of the magnetic ring grooves on the two sides of the support body 271, and the three magnetic ring grooves are arranged in parallel, so that the direct current filter is compact in structure and high in connection reliability.
The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The integrated inversion power assembly is characterized by comprising a bottom plate assembly (1), a direct current filter (2), a module assembly (3), a shielding plate (4) and a module control unit (5), wherein a thin film capacitor main body (11) is arranged on one side of the bottom plate assembly (1), a power module matching surface (110) is arranged on the other side of the bottom plate assembly, a cooling liquid groove (17) is arranged in the middle of the power module matching surface (110), the module assembly (3), the shielding plate (4) and the module control unit (5) are sequentially overlapped on the power module matching surface (110) from low to high, and the height of the top surface of the thin film capacitor main body (11) is larger than that of the power module matching surface (110);
a direct current filter (2) is fixed on a thin film capacitor main body (11), one side of the thin film capacitor main body (11) is provided with a thin film capacitor output terminal (15), a grounding terminal (13) and an output terminal bracket (14) which is tightly attached to the thin film capacitor main body (11) and is embedded on a bottom plate assembly (1), and the thin film capacitor main body (11), the thin film capacitor output terminal (15), the grounding terminal (13) and the output terminal bracket (14) are encapsulated on the bottom plate assembly (1).
2. The integrated inverter power assembly according to claim 1, wherein the cooling liquid tank (17) is a rectangular tank, the cooling liquid water inlet (18) and the cooling liquid water outlet (111) are arranged on two wide sides of the rectangular tank, the cooling liquid water inlet (18) and the cooling liquid water outlet (111) vertically penetrate through the bottom plate assembly (1) downwards from two sides of the rectangular tank, a sealing groove (16) is further arranged outside the rectangular tank, and a sealing ring is arranged in the sealing groove (16).
3. The integrated inverter power assembly of claim 1, wherein the thin film capacitor output terminal (15) is disposed on the output terminal support (14), the ground terminal (13) is disposed on one side of the output terminal support (14) and is closely attached to the thin film capacitor main body (11), the thin film capacitor input terminal (12) is further disposed on one side of the thin film capacitor main body (11), the thin film capacitor input terminal (12) is encapsulated on the bottom plate assembly (1), and the thin film capacitor input terminal (12) is electrically connected with the busbar (22) of the direct current filter (2).
4. An integrated inverter power assembly according to claim 1, characterized in that the dc filter (2) comprises a filter holder (27), a first order magnetic ring (21), a busbar (22), a first order Y-capacitor (23), a second order magnetic ring (24), a second order Y-capacitor (25) and a third order magnetic ring (26);
wherein the filter support (27) is of a symmetrical structure, the filter support (27) comprises a support main body (271), one side of the support main body (271) is provided with a magnetic ring groove, the middle of the outer side of the magnetic ring groove is provided with a busbar groove, the support main body (271) on the inner side of the magnetic ring groove is provided with a capacitor groove, the top surface of the capacitor groove is provided with a grounding row, the outer side of the grounding row is provided with a busbar switching row (273),
the structure of the other side of the bracket main body (271) is the same as that of the other side, a magnetic ring groove is arranged in the middle of the magnetic ring grooves on the two sides of the bracket main body (271), and the three magnetic ring grooves are arranged in parallel;
the ground row on one side of the holder body (271) is a first ground row (272), and the ground row on the other side of the holder body (271) is a second ground row (274).
5. The integrated inverter power assembly of claim 4, wherein the first-order magnetic ring (21) and the third-order magnetic ring (26) are respectively arranged in magnetic ring grooves on two sides of the bracket main body (271), the second-order magnetic ring (24) is arranged in the magnetic ring groove in the middle of the bracket main body (271), the first-order Y capacitor (23) and the second-order Y capacitor (25) are respectively arranged in capacitor grooves on two sides of the bracket main body (271), and the busbar (22) horizontally passes through the busbar grooves along the direction of the magnetic ring.
6. The integrated inverter power assembly of claim 5, wherein pins of the first-order Y capacitor (23) and the second-order Y capacitor (25) are soldered to pins of the first ground bar (272), the second ground bar (274) and the bus bar switching bar (273), respectively, and pins are led out from two ends of the first ground bar (272) and the second ground bar (274), respectively, and each bus bar switching bar (273) has a pin.
7. An integrated inverter power assembly according to claim 2, wherein the module assembly (3) comprises a power board (31), a power module (32), a current sensor (33) and a three-phase copper bar (34), pins (35) are welded on the power board (31),
the power module (32) of the module assembly (3) is fixed on the power module matching surface (110), and the thin film capacitor output terminal (15) is electrically connected with the input terminal of the power module (32) through a fixing screw.
8. An integrated inverter power assembly according to claim 7, characterized in that the current sensor (33) is located at the side of the module assembly (3), the three-phase copper bar (34) passing through a square through hole on the current sensor (33); the power board (31) is fixed on the power module (32) through screws, and pins of the power board (31) and the power module (32) are welded.
9. The integrated inverter power assembly according to claim 7, wherein the base plate assembly (1) is provided with shielding plate fixing columns (19), the shielding plate fixing columns (19) are symmetrically arranged on two sides of the cooling liquid tank (17), rib plates are arranged on two sides of each shielding plate fixing column (19), the shielding plate fixing columns (19) penetrate through fixing holes formed in the shielding plates (4), and the shielding plates (4) are fixed on the shielding plate fixing columns (19).
10. An integrated inverter power assembly according to claim 7, characterized in that the module control unit (5) is provided with a busbar (51), the busbar (51) being electrically connected with a pin (35) on the power board (31).
CN202321696789.XU 2023-06-30 2023-06-30 Integrated inverter power assembly Active CN219999217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321696789.XU CN219999217U (en) 2023-06-30 2023-06-30 Integrated inverter power assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321696789.XU CN219999217U (en) 2023-06-30 2023-06-30 Integrated inverter power assembly

Publications (1)

Publication Number Publication Date
CN219999217U true CN219999217U (en) 2023-11-10

Family

ID=88617990

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321696789.XU Active CN219999217U (en) 2023-06-30 2023-06-30 Integrated inverter power assembly

Country Status (1)

Country Link
CN (1) CN219999217U (en)

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