CN213990507U - Three-level topology module, inverter and electrical equipment - Google Patents
Three-level topology module, inverter and electrical equipment Download PDFInfo
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- CN213990507U CN213990507U CN202022496938.0U CN202022496938U CN213990507U CN 213990507 U CN213990507 U CN 213990507U CN 202022496938 U CN202022496938 U CN 202022496938U CN 213990507 U CN213990507 U CN 213990507U
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Abstract
The utility model belongs to the technical field of electrical equipment, especially, relate to three level topology module, dc-to-ac converter and electrical equipment, three level topology module include: a first power module disposed vertically; the second power module is vertically arranged and corresponds to the first power module, and an emitting electrode of the second power module is provided with an extending copper bar in a bent arrangement; the third power module is horizontally arranged and is adjacently arranged on the first power module and the second power module; the product is small, and only needs less copper bar, can realize mutual connection promptly, is connected in order to realize the function with external equipment again.
Description
Technical Field
The utility model belongs to the technical field of electrical equipment, especially, relate to three level topology module, dc-to-ac converter and electrical equipment.
Background
In the field of medium-high voltage and high power, the multilevel is widely applied by the advantages of good output performance, small harmonic content, high efficiency and the like. Among them, three-level applications are the most widely used, for example, three-level anpc (active neutral point clamped) power modules are widely used in the field of inverters. However, as shown in fig. 1, the existing three-level ANPC power module is formed by vertically arranging three modules and then combining the three modules to form a module, which results in a large product size, brings inconvenience to maintenance and production, also causes pressure to transportation, and needs to spend a large number of copper bars for connecting the modules, thereby greatly increasing the system cost.
Therefore, designing a three-level topology module to solve the above-mentioned drawbacks has been one of the issues of intensive research by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model provides a three-level topology module aims at solving the technical problem that current three-level topology module is bulky, with high costs.
The utility model discloses a realize like this, provide a three-level topology module, include:
a first power module disposed vertically;
the second power module is vertically arranged and corresponds to the first power module, and an emitting electrode of the second power module is provided with an extending copper bar in a bent arrangement;
a horizontally disposed third power module disposed adjacent to the first power module and the second power module;
the collector of the first power module, the collector of the second power module and one end of the extension copper bar, which is far away from the emitter of the second power module, are located on the same horizontal line, a first copper bar is arranged on the emitter of the first power module and is connected with the collector of the second power module through the first copper bar, a second copper bar is arranged on a common electrode of the first power module and is connected with the collector or the common electrode of the third power module through the second copper bar, a third copper bar is arranged on the common electrode of the second power module and is connected with the emitter of the third power module through the third copper bar.
Furthermore, a fourth copper bar is arranged on the collector of the first power module, and a fifth copper bar is arranged on the common electrode or the collector of the third power module.
The utility model provides a three level topology module, including the multiunit as above three level topology module, each group three level topology module is the array and arranges, the connection of last three level topology module the second copper bar of the collecting electrode of third power module passes through the connection of sixth copper bar connection next three level topology module the second copper bar of the public utmost point of third power module, the third copper bar of last three level topology module pass through at least one seventh copper bar and connect the third copper bar of next three level topology module.
Still further, the seventh copper bar is provided with two.
The utility model also provides an inverter, include as above three level topology modules.
The utility model also provides an electrical equipment, include as above the dc-to-ac converter.
The beneficial effects of the utility model reside in that, be equipped with the third power module of placing perpendicularly first power module, second power module and level of placing, the power module that has current three perpendicular setting than it, the product is small, and only needs less copper bar, can realize connecting each other promptly, is connected in order to realize the function with external equipment again.
Drawings
FIG. 1 is a schematic diagram of a prior art three-level ANPC power module;
fig. 2 is a schematic diagram of a three-level topology module according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a three-level topology module according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The utility model provides a three-level topology module is equipped with the third power module 3 of placing of the first power module 1 of placing perpendicularly, second power module 2 and level, and the power module that has current three perpendicular setting than, the product is small, and only needs less copper bar, can realize being connected each other promptly, is connected in order to realize the function with external equipment again.
Example one
Referring to fig. 2, the first embodiment provides a three-level topology module, which includes: a first power module 1 placed vertically; the second power module 2 is vertically arranged and corresponds to the first power module 1, and an emitting electrode 22 of the second power module 2 is provided with an extension copper bar 221 which is bent; and a third power module 3 horizontally disposed adjacent to the first power module 1 and the second power module 2.
In the present embodiment, the first power module 1 and the second power module 2 are disposed above and opposite to each other in the left-right direction, and the third power module 3 is disposed below. The first power module 1, the second power module 2 and the third power module 3 all adopt 62mm modules, and the miniaturization of products can be further realized by utilizing small-sized power modules.
Wherein, the collector 11 of the first power module 1, the collector 21 of the second power module 2 and one end of the extension copper bar 221 far away from the emitter 22 of the second power module 2 are located at the same horizontal line. Because the extension copper bar 221 is bent, the collector 11 of the first power module 1, the collector 21 of the second power module 2, and one end of the extension copper bar 221 far away from the emitter 22 of the second power module 2 can be located on the same horizontal line, which is convenient for assembling with a capacitor module of an external device. Be equipped with first copper bar 121 on the projecting pole 12 of first power module 1, and connect the collecting electrode 21 of second power module 2 through first copper bar 121, be equipped with second copper bar 131 on the common utmost point 13 of first power module 1, and connect collecting electrode 31 or the common utmost point 33 of third power module 3 through second copper bar 131, be equipped with third copper bar 231 on the common utmost point 23 of second power module 2, and connect the projecting pole 32 of third power module 3 through third copper bar 231, carry out the connection between each power module through shorter first copper bar 121, second copper bar 131 and third copper bar 231, stray inductance between each power module has been reduced, IGBT stress has been reduced. Further, laminated copper bars may be used for the connection to further reduce stray inductance.
Furthermore, a fourth copper bar 111 is disposed on the collector 11 of the first power module 1, a fifth copper bar 331 is disposed on the common electrode 33 or the collector 31 of the third power module 3, the fifth copper bar 331 has two ends, and one end is disposed at the common electrode 33 or the collector 31 of the third power module 3. It should be noted that, when the second copper bar 131 is connected to the collector electrode 31 of the third power module 3, the common electrode 33 of the third power module 3 is provided with a fifth copper bar 331, and when the second copper bar 131 is connected to the common electrode 33 of the third power module 3, the collector electrode 31 of the third power module 3 is provided with the fifth copper bar 331.
The collector 11 of the first power module 1 is used as a positive bus input terminal, the collector 21 of the second power module 2 is used as a bus midpoint input terminal, the end of the extended copper bar 221 away from the emitter 22 of the second power module 2 is used as a negative bus input terminal, and the end of the fifth copper bar 331 not located at the common electrode 33 or the collector 31 is used as an output terminal. The capacitor module of the external equipment is connected with the three-level topology module through the positive bus input end, the bus midpoint input end and the negative bus bar input end, and potential balance among the parallel modules is realized among the power modules through parallel copper bars. The utility model discloses in, the third power module 3 that the three-level topology module was equipped with the first power module 1 of placing perpendicularly, second power module 2 and the level is placed, and the power module that has current three perpendicular setting than, the product is small, and only needs less copper bar, can realize being connected each other promptly, is connected in order to realize the function with external equipment again.
Example two
Referring to fig. 3, a second embodiment provides a three-level topology module, which includes a plurality of sets of three-level topology modules according to the first embodiment, where each set of three-level topology modules is arranged in an array, for example, each set of three-level topology modules is arranged in a horizontal array.
The second copper bar 131 of the previous three-level topology module, which is connected to the collector 31 of the third power module 3, is connected to the second copper bar 131 of the next three-level topology module, which is connected to the common electrode 33 of the third power module 3, through the seventh copper bar 42, and the third copper bar 231 of the previous three-level topology module is connected to the third copper bar 231 of the next three-level topology module through at least one seventh copper bar 41. Taking fig. 3 as an example, the three-level topology module located on the left is the previous three-level topology module, the three-level topology module located on the right is the next three-level topology module, the second copper bar 131 of the three-level topology module located on the left, which is connected to the collector of the third power module 3, is connected to the second copper bar 131 of the three-level topology module located on the right, which is connected to the common electrode 33 of the third power module 3, through the sixth copper bar 42, and the third copper bar 231 of the three-level topology module located on the left is connected to the third copper bar 231 of the three-level topology module located on the right, which is connected to the third copper bar 231 of the three-level topology module located on the right, through the two eighth copper 41 rows.
Through the three-level topological module that the three-level topological module of multiunit as embodiment one constitutes, the product is small, and only needs less copper bar, can realize mutual connection, is connected in order to realize the function with external equipment again.
EXAMPLE III
A third embodiment provides an inverter including the three-level topology module as described in the second embodiment.
The inverter uses the three-level topology module as described in the second embodiment, and the three-level topology module occupies a small space, thereby being beneficial to the layout of electric components of the inverter and the miniaturization of the inverter.
Example four
The fourth embodiment provides an electrical device including the inverter according to the third embodiment.
The inverter is used for the electrical equipment according to the third embodiment, the three-level topology module is used for the inverter according to the second embodiment, and the three-level topology module occupies a small space, so that the layout of electrical components of the electrical equipment is facilitated, and the miniaturization of the electrical equipment is facilitated.
The utility model discloses in, the third power module 3 that the three-level topology module was equipped with the first power module 1 of placing perpendicularly, second power module 2 and the level is placed, and the power module that has current three perpendicular setting than, the product is small, and only needs less copper bar, can realize being connected each other promptly, is connected in order to realize the function with external equipment again.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A three-level topology module, comprising:
a first power module disposed vertically;
the second power module is vertically arranged and corresponds to the first power module, and an emitting electrode of the second power module is provided with an extending copper bar in a bent arrangement;
a horizontally disposed third power module disposed adjacent to the first power module and the second power module;
the collector of the first power module, the collector of the second power module and one end of the extension copper bar, which is far away from the emitter of the second power module, are located on the same horizontal line, a first copper bar is arranged on the emitter of the first power module and is connected with the collector of the second power module through the first copper bar, a second copper bar is arranged on a common electrode of the first power module and is connected with the collector or the common electrode of the third power module through the second copper bar, a third copper bar is arranged on the common electrode of the second power module and is connected with the emitter of the third power module through the third copper bar.
2. The three-level topology module of claim 1, wherein a fourth copper bar is disposed on a collector of said first power module, and a fifth copper bar is disposed on a common or collector of said third power module.
3. A three-level topological module, which is characterized by comprising a plurality of groups of three-level topological modules according to claim 1 or 2, wherein the three-level topological modules in each group are arranged in an array, the second copper bar of the last three-level topological module, which is connected with the collector electrode of the third power module, is connected with the second copper bar of the next three-level topological module, which is connected with the common electrode of the third power module, through a sixth copper bar, and the third copper bar of the last three-level topological module is connected with the third copper bar of the next three-level topological module through at least one seventh copper bar.
4. The three-level topology module of claim 3, wherein there are two of said seventh copper bars.
5. An inverter, characterized in that it comprises a three-level topology module according to claim 3 or 4.
6. An electrical apparatus, characterized in that it comprises an inverter according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496938.0U CN213990507U (en) | 2020-11-02 | 2020-11-02 | Three-level topology module, inverter and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496938.0U CN213990507U (en) | 2020-11-02 | 2020-11-02 | Three-level topology module, inverter and electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213990507U true CN213990507U (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022496938.0U Active CN213990507U (en) | 2020-11-02 | 2020-11-02 | Three-level topology module, inverter and electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213990507U (en) |
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2020
- 2020-11-02 CN CN202022496938.0U patent/CN213990507U/en active Active
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