CN211480449U - Laminated busbar of high-power inverter - Google Patents
Laminated busbar of high-power inverter Download PDFInfo
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- CN211480449U CN211480449U CN202020200565.5U CN202020200565U CN211480449U CN 211480449 U CN211480449 U CN 211480449U CN 202020200565 U CN202020200565 U CN 202020200565U CN 211480449 U CN211480449 U CN 211480449U
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Abstract
The utility model provides a female row of stromatolite of high-power dc-to-ac converter, including negative plate, line ball board, positive plate, first insulating paper, second insulating paper, third insulating paper, fourth insulating paper, fifth insulating paper, sixth insulating paper. The utility model has the advantages that: the utility model discloses a female arranging of stromatolite can realize installing fast, and very big reduction stray inductance promotes the reliability and the stability of dc-to-ac converter simultaneously.
Description
Technical Field
The utility model relates to a female technical field that arranges especially relates to a female row of stromatolite of high-power dc-to-ac converter.
Background
In a high-power inverter, the traditional wiring structure has the defects of complex copper bar design, large volume, complex installation, large stray inductance, high turn-off peak voltage of the IGBT generated by the stray inductance and the like, so that the reliability of the inverter is reduced and the operation is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model provides a laminated busbar of a high-power inverter, which comprises a negative plate, a neutral wire plate, a positive plate, first insulating paper, second insulating paper, third insulating paper, fourth insulating paper, fifth insulating paper and sixth insulating paper, wherein the negative plate is provided with a plurality of negative plate convex hulls, the positive plate is provided with a plurality of positive plate convex hulls, the negative plate is positioned above the neutral wire plate, the positive plate is positioned below the neutral wire plate, the neutral wire plate is provided with a plurality of neutral wire plate holes, the first insulating paper is pasted on the top surface of the negative plate, the second insulating paper is pasted on the bottom surface of the negative plate, the second insulating paper is provided with a plurality of second insulating paper holes, the third insulating paper is pasted on the top surface of the neutral wire plate, the fourth insulating paper is pasted on the bottom surface of the neutral wire plate, the third insulating paper is provided with a plurality of third insulating paper holes, and the fourth insulating paper is provided with a plurality of fourth insulating paper holes, the plurality of negative plate convex hulls penetrate through the plurality of second insulating paper holes and the plurality of third insulating paper holes and extend into the plurality of median plate holes; the fifth insulating paper is attached to the top surface of the positive plate, the sixth insulating paper is attached to the bottom surface of the positive plate, the fifth insulating paper is provided with a plurality of fifth insulating paper holes, and a plurality of positive plate convex hulls penetrate through the fifth insulating paper holes and the fourth insulating paper holes and stretch into the middle wire plate holes; the negative plate is provided with a negative plate direct current input end, and the positive plate is provided with a positive plate direct current input end.
As a further improvement, the negative plate is equipped with a plurality of negative terminals, the positive plate is equipped with a plurality of positive terminals, well line board is equipped with a plurality of well line board terminals.
As a further improvement of the utility model, the negative terminal is 3, the positive terminal is 3, the line side of well line is 6.
As a further improvement of the utility model, first insulating paper is fixed in through the thermocompression bonding negative plate top surface, the second insulating paper is fixed in through the thermocompression bonding negative plate bottom surface, the third insulating paper is fixed in through the thermocompression bonding well line board top surface, the fourth insulating paper is fixed in through the thermocompression bonding well line board bottom surface, the fifth insulating paper is fixed in through the thermocompression bonding positive plate top surface, the sixth insulating paper is fixed in through the thermocompression bonding positive plate bottom surface.
As a further improvement of the utility model, the negative plate is made of copper material, and the positive plate is made of copper material.
As a further improvement of the present invention, the laminated busbar further includes a first epoxy resin plate and a second epoxy resin plate located on the negative plate.
As a further improvement of the present invention, the first epoxy resin plate and the second epoxy resin plate are different in shape.
As a further improvement of the utility model, the first epoxy board is a double-ring structure, and the second epoxy board is a single-ring structure.
As a further improvement, be equipped with five first epoxy boards on the negative plate, be equipped with five second epoxy boards on the negative plate, the median plate is equipped with ten second epoxy boards, the positive plate is equipped with five first epoxy boards, the positive plate is equipped with five second epoxy boards.
The utility model has the advantages that: the utility model discloses a female arranging of stromatolite can realize installing fast, and very big reduction stray inductance promotes the reliability and the stability of dc-to-ac converter simultaneously.
Drawings
FIG. 1 is a schematic view of the exploded structure of the present invention;
fig. 2 is a schematic structural diagram of the present invention;
fig. 3 is a schematic diagram of a three-level "1" font circuit.
Detailed Description
As shown in fig. 1-2, the present invention discloses a laminated bus bar of a high power inverter, comprising a negative plate 1, a middle plate 2, a positive plate 3, a first insulating paper 61, a second insulating paper 62, a third insulating paper 63, a fourth insulating paper 64, a fifth insulating paper 65, and a sixth insulating paper 66, wherein the negative plate 1 is provided with a plurality of negative plate bulges, the positive plate 3 is provided with a plurality of positive plate bulges, the negative plate 1 is located on the middle plate 2, the positive plate 3 is located under the middle plate 2, the middle plate 2 is provided with a plurality of middle plate holes, the first insulating paper 61 is attached to the top surface of the negative plate 1, the second insulating paper 62 is attached to the bottom surface of the negative plate 1, the second insulating paper 62 is provided with a plurality of second insulating paper holes, the third insulating paper 63 is attached to the top surface of the middle plate 2, the fourth insulating paper 64 is attached to the bottom surface of the middle plate 2, the third insulating paper 63 is provided with a plurality of third insulating paper holes, the fourth insulating paper 64 is provided with a plurality of fourth insulating paper holes, and a plurality of negative plate convex hulls penetrate through the second insulating paper holes and the third insulating paper holes and extend into the central line board holes; the fifth insulating paper 65 is attached to the top surface of the positive plate 3, the sixth insulating paper 66 is attached to the bottom surface of the positive plate 3, the fifth insulating paper 65 is provided with a plurality of fifth insulating paper holes, and a plurality of positive plate convex hulls penetrate through the fifth insulating paper holes and the fourth insulating paper holes and extend into the central line plate holes; the negative plate 1 is provided with a negative plate direct current input end 7, and the positive plate 3 is provided with a positive plate direct current input end 8.
The negative plate 1 is equipped with a plurality of negative electrode wiring ends 11, the positive plate 3 is equipped with a plurality of positive electrode wiring ends 31, the median plate 2 is equipped with a plurality of median plate wiring ends 21.
The first insulating paper 61 is fixed to the top surface of the negative electrode plate 1 by thermocompression bonding, the second insulating paper 62 is fixed to the bottom surface of the negative electrode plate 1 by thermocompression bonding, the third insulating paper 63 is fixed to the top surface of the median plate 2 by thermocompression bonding, the fourth insulating paper 64 is fixed to the bottom surface of the median plate 2 by thermocompression bonding, the fifth insulating paper 65 is fixed to the top surface of the positive electrode plate 3 by thermocompression bonding, and the sixth insulating paper 66 is fixed to the bottom surface of the positive electrode plate 3 by thermocompression bonding.
The negative plate 1 is made of a copper material, and the positive plate 3 is made of a copper material.
The laminated busbar further comprises a first epoxy resin plate 4 and a second epoxy resin plate 5 which are positioned on the negative plate 1, the neutral plate 2 is provided with the second epoxy resin plate 5, and the positive plate 3 is provided with the first epoxy resin plate 4 and the second epoxy resin plate 5.
The first epoxy resin board 4 and the second epoxy resin board 5 are different in shape.
The first epoxy resin plate 4 has a double-ring structure, and the second epoxy resin plate 5 has a single-ring structure.
The improved solar cell comprises a negative plate 1, a middle plate 2, a positive plate 3 and a negative plate 1, wherein the negative plate 1 is provided with five first epoxy resin plates 4, the negative plate 1 is provided with five second epoxy resin plates 5, the middle plate 2 is provided with ten second epoxy resin plates 5, the positive plate 3 is provided with five first epoxy resin plates 4, and the positive plate 3 is provided with five second epoxy resin plates 5.
Through setting up first epoxy board 4 and second epoxy board 5, increase electric clearance and creepage distance, strengthen insulating, improve withstand voltage ability.
The utility model discloses a female arranging of stromatolite can realize installing fast, and very big reduction stray inductance promotes the reliability and the stability of dc-to-ac converter simultaneously.
As shown in fig. 3, the laminated busbar applied to the three-level inverter main circuit includes a negative electrode, a neutral line and a positive electrode, the input side of the laminated busbar includes a negative plate dc input end 7 and a positive plate dc input end 8, and the output side of the laminated busbar includes a negative plate wiring end 11, a neutral plate wiring end 21 and a positive plate wiring end 31, and is used for connecting the dc busbar capacitor with the IGBT module:
VNBUS-negative plate direct current input corresponds to a negative plate direct current input end 7 of the laminated busbar;
VPBUS-positive plate direct current input corresponding to the positive plate direct current input end 8 of the laminated busbar;
the middle direct current bus supports the capacitor, and consists of capacitors C1 and C2, wherein C1 is a positive bus capacitor, and C2 is a negative bus capacitor.
The IGBT module is of a double-tube structure, the IGBT module 1 is composed of Q1 and D2, the IGBT module 2 is composed of Q2 and Q3, and the IGBT module 3 is composed of Q4 and D1.
The upper electrode of the capacitor C1 is positive, and the lower electrode of the capacitor C1 is negative;
the lower electrode of the capacitor C1 is connected with the upper electrode of the capacitor C2 to form a central line;
the upper electrode of the capacitor C2 is positive and the lower electrode of the capacitor C2 is negative.
The positive plate terminal 31-is correspondingly connected with the capacitor C1+ and the Q1 tube (2 feet) of the IGBT module 1
Negative plate terminal 11-corresponding connecting capacitor C2-and Q4 tube (3 feet) of IGBT module 3
The two neutral board terminals 21-are connected to the D2 transistor (a pole, anode) of the IGBT module 1 and the D1 transistor (K pole, cathode) of the IGBT module 3, respectively. D1 and D2 are clamp diodes.
The outer top surface of the negative plate 1 is provided with a first insulating paper 61, and the first insulating paper 61 is an outer insulating layer. The outer bottom surface of the positive plate 3 is provided with a sixth insulating paper 66, and the sixth insulating paper 66 is also an outer insulating layer. Two layers of insulating paper (second insulating paper 62 and third insulating paper 63) between the negative plate 1 and the central plate 2 are intermediate insulating layers, and two layers of insulating paper (fourth insulating paper 64 and fifth insulating paper 65) between the central plate 2 and the positive plate 3 are intermediate insulating layers.
Use the lower plane of median plate 2 as the basal plane, negative plate 1 adopts the mode of upwards pressing the convex closure, and positive plate 3 adopts the mode of upwards pressing the convex closure for three copper (negative plate 1, median plate 2, positive plate 3) and the contact surface parallel and level of electric capacity, the concrete description is as follows: the middle direct current bus supporting capacitors C1 and C2 are composed of a plurality of capacitors, and the capacitors form a capacitor assembly; when the capacitor is installed, the capacitor is arranged below the laminated busbar, and the electrodes (corresponding to the negative plate 1, the neutral plate 2 and the positive plate 3 of the laminated busbar) of all the capacitors are on the same horizontal plane, so that the electrodes of the three copper plates are flush with the contact surface of the capacitor.
The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (9)
1. The laminated busbar of the high-power inverter is characterized in that: the negative plate comprises a negative plate (1), a neutral wire plate (2), a positive plate (3), first insulating paper (61), second insulating paper (62), third insulating paper (63), fourth insulating paper (64), fifth insulating paper (65) and sixth insulating paper (66), wherein the negative plate (1) is provided with a plurality of negative plate convex hulls, the positive plate (3) is provided with a plurality of positive plate convex hulls, the negative plate (1) is positioned on the neutral wire plate (2), the positive plate (3) is positioned below the neutral wire plate (2), the neutral wire plate (2) is provided with a plurality of neutral wire hole holes, the first insulating paper (61) is attached to the top surface of the negative plate (1), the second insulating paper (62) is attached to the bottom surface of the negative plate (1), the second insulating paper (62) is provided with a plurality of second insulating paper holes, and the third insulating paper (63) is attached to the top surface of the neutral wire plate (2), the fourth insulating paper (64) is attached to the bottom surface of the central line board (2), a plurality of third insulating paper holes are formed in the third insulating paper (63), a plurality of fourth insulating paper holes are formed in the fourth insulating paper (64), and a plurality of negative plate convex hulls penetrate through the second insulating paper holes and the third insulating paper holes and extend into the central line board holes; the fifth insulating paper (65) is attached to the top surface of the positive plate (3), the sixth insulating paper (66) is attached to the bottom surface of the positive plate (3), a plurality of fifth insulating paper holes are formed in the fifth insulating paper (65), and a plurality of positive plate convex hulls penetrate through the fifth insulating paper holes and the fourth insulating paper holes and stretch into the central line board holes; the negative plate (1) is provided with a negative plate direct current input end (7), and the positive plate (3) is provided with a positive plate direct current input end (8).
2. The laminated busbar according to claim 1, wherein: the negative plate (1) is equipped with a plurality of negative electrode wiring ends (11), positive plate (3) are equipped with a plurality of positive electrode wiring ends (31), well line board (2) are equipped with a plurality of well line board wiring ends (21).
3. The laminated busbar according to claim 2, wherein: negative terminal (11) are 3, positive terminal (31) are 3, line board terminal (21) are 6.
4. The laminated busbar according to claim 1, wherein: the first insulating paper (61) is fixed on the top surface of the negative plate (1) through hot-press adhesion, the second insulating paper (62) is fixed on the bottom surface of the negative plate (1) through hot-press adhesion, the third insulating paper (63) is fixed on the top surface of the middle wire plate (2) through hot-press adhesion, the fourth insulating paper (64) is fixed on the bottom surface of the middle wire plate (2) through hot-press adhesion, the fifth insulating paper (65) is fixed on the top surface of the positive plate (3) through hot-press adhesion, and the sixth insulating paper (66) is fixed on the bottom surface of the positive plate (3) through hot-press adhesion.
5. The laminated busbar according to claim 1, wherein: the negative plate (1) is made of a copper material, and the positive plate (3) is made of a copper material.
6. The laminated busbar according to claim 1, wherein: the laminated busbar further comprises a first epoxy resin plate (4) and a second epoxy resin plate (5) which are located on the negative plate (1), the neutral plate (2) is provided with the second epoxy resin plate (5), and the positive plate (3) is provided with the first epoxy resin plate (4) and the second epoxy resin plate (5).
7. The laminated busbar according to claim 6, wherein: the first epoxy resin plate (4) and the second epoxy resin plate (5) are different in shape.
8. The laminated busbar according to claim 7, wherein: the first epoxy resin plate (4) is of a double-ring structure, and the second epoxy resin plate (5) is of a single-ring structure.
9. The laminated busbar according to claim 8, wherein: be equipped with five first epoxy boards (4) on negative plate (1), be equipped with five second epoxy boards (5) on negative plate (1), well line board (2) are equipped with ten second epoxy boards (5), positive plate (3) are equipped with five first epoxy boards (4), positive plate (3) are equipped with five second epoxy boards (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020200565.5U CN211480449U (en) | 2020-02-24 | 2020-02-24 | Laminated busbar of high-power inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020200565.5U CN211480449U (en) | 2020-02-24 | 2020-02-24 | Laminated busbar of high-power inverter |
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| Publication Number | Publication Date |
|---|---|
| CN211480449U true CN211480449U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020200565.5U Active CN211480449U (en) | 2020-02-24 | 2020-02-24 | Laminated busbar of high-power inverter |
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| Country | Link |
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| CN (1) | CN211480449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115955127A (en) * | 2023-02-14 | 2023-04-11 | 山东艾诺智能仪器有限公司 | Three-level rectifier power module |
-
2020
- 2020-02-24 CN CN202020200565.5U patent/CN211480449U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115955127A (en) * | 2023-02-14 | 2023-04-11 | 山东艾诺智能仪器有限公司 | Three-level rectifier power module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211008 Address after: 215500 No.25 Furong Road, Baimao, Guli Town, Changshu City, Suzhou City, Jiangsu Province Patentee after: Suzhou Yuyi Intelligent Technology Co.,Ltd. Address before: 518000 440-441, No. 42, Huaning Road, Xinshi community, Dalang street, Longhua District, Shenzhen, Guangdong Patentee before: Shenzhen Zhongtai Huafang Technology Co., Ltd |
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| TR01 | Transfer of patent right |