Power module and power conversion equipment

Abstract

The utility model discloses a power module and a power conversion device, the power module comprises a rectification assembly, a control assembly, an inversion assembly and at least two relatively independent housings, and the rectification assembly and the inversion assembly are installed in different housings; the rectification assembly and the inversion assembly are detachably and electrically connected and are detachably and electrically connected with the control assembly. According to the power module, the rectification assembly and the inversion assembly are installed in different shells, so that in the installation process, at least two relatively independent shells can be independently carried and assembled on site after being carried to proper positions, compared with the prior art, the carrying difficulty is reduced, the carrying time is saved, the installation efficiency is improved, and the installation cost is reduced. And the safety risk is reduced.

Description

Technical Field

[0001] This application relates to the field of power conversion equipment technology, and in particular to a power module and a power conversion device. Background Technology

[0002] With the advancement of technology, the demand for power conversion equipment such as inverters, converters, frequency converters, and grid simulators is increasing. Power modules, as the core of power conversion equipment, play a crucial role. Currently, power modules suffer from difficulties in transportation and low installation efficiency.

[0003] Therefore, how to improve the installation efficiency of power modules has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This application proposes a power module and a power conversion device to improve the installation efficiency of the power module.

[0005] To achieve the above objectives, this application discloses the following technical solutions:

[0006] In a first aspect, this application provides a power module including a rectifier component, a control component, an inverter component, and at least two relatively independent housings, wherein the rectifier component and the inverter component are installed in different housings; the rectifier component and the inverter component are detachably electrically connected, and are respectively detachably electrically connected to the control component.

[0007] In some embodiments, there are two housings, with the control component located within either the rectifier or inverter housing.

[0008] In some embodiments, there are three housings, with the rectifier assembly, control assembly, and inverter assembly located in different housings.

[0009] In some embodiments, the rectifier assembly includes a rectifier water-cooled plate, a rectifier module, a rectifier adapter board, a rectifier driver board, and a rectifier capacitor bank. The rectifier water-cooled plate, the rectifier module, the rectifier adapter board, and the rectifier driver board are stacked and arranged in a first direction to form a rectifier unit. The rectifier capacitor bank is arranged side by side with the rectifier unit in a second direction. The height direction of the rectifier capacitor bank coincides with the first direction, and the second direction is perpendicular to the first direction.

[0010] In some embodiments, the rectifier module is mounted on the rectifier water-cooling plate by a first fastener.

[0011] In some embodiments, the rectifier busbar of the rectifier assembly is connected to the rectifier capacitor bank and the rectifier unit and is led out from the corresponding housing.

[0012] In some embodiments, the control assembly includes a control board, a power board, a crowbar resistor, and a small light board, wherein the control board and the power board are arranged side by side in a third direction and side by side with the crowbar resistor in a fourth direction, and the small light board is located above the control board, the power board, and the crowbar resistor in a third direction, and the third direction is perpendicular to the fourth direction.

[0013] In some embodiments, the control assembly further includes a rectangular control frame, with the control board, power board, and crowbar resistor located inside the control frame, and the lamp board located outside the control frame.

[0014] In some embodiments, the inverter assembly includes an inverter water-cooled plate, an inverter module, an inverter adapter board, an inverter driver board, and an inverter capacitor bank. The inverter water-cooled plate, inverter module, inverter adapter board, and inverter driver board are stacked in the fifth direction to form an inverter unit. The inverter capacitor bank and the inverter unit are arranged side by side in the sixth direction. The height direction of the inverter capacitor bank coincides with the fifth direction, and the sixth direction is perpendicular to the fifth direction.

[0015] In some embodiments, the inverter module is mounted on the rectifier water-cooling plate via a second fastener.

[0016] In some embodiments, the inverter busbar of the inverter assembly is connected to the inverter capacitor bank and the inverter unit and is led out from the corresponding housing.

[0017] In some embodiments, the rectifier and inverter are located in different housings with the same length and height, and the capacitor bus of the rectifier and the capacitor bus of the inverter are connected by a busbar.

[0018] In some embodiments, a first baffle is detachably provided at the location where the capacitor busbar of the housing where the rectifier assembly is installed is located;

[0019] The part of the housing where the inverter components are installed, where the capacitor bus leads out, is equipped with a detachable second baffle.

[0020] In some embodiments, the housing on which the control components are mounted is detachably provided with a third baffle.

[0021] Secondly, this application provides a frequency converter, including a cabinet and a power module as described above, wherein the power module is installed inside the cabinet.

[0022] As can be seen from the above technical solution, in the power module of this application, the rectifier component and the inverter component are installed in different housings. Therefore, during the installation process, at least two relatively independent housings can be transported separately and assembled on site after being transported to the appropriate location. Compared with the prior art, this reduces the difficulty of transportation, saves transportation time, thereby improving installation efficiency and reducing safety risks. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort, and this application can be applied to other similar scenarios based on the provided drawings. Unless obvious from the linguistic context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0024] Figure 1 A perspective view of a power module provided in an embodiment of this application;

[0025] Figure 2 A perspective view of a second type of power module provided in an embodiment of this application;

[0026] Figure 3 A perspective view of a third type of power module provided in an embodiment of this application;

[0027] Figure 4 A perspective view of a rectifier assembly provided in an embodiment of this application;

[0028] Figure 5 A perspective view of a control component provided in an embodiment of this application;

[0029] Figure 6 A perspective view of an inverter component provided in an embodiment of this application;

[0030] In the diagram: 10 - Rectifier assembly; 20 - Control assembly; 30 - Inverter assembly; 40 - Housing;

[0031] 11-Rectifier water-cooled plate; 12-Rectifier module; 13-Rectifier adapter board; 14-Rectifier driver board; 15-Rectifier capacitor bank; 151-Capacitor bus; 16-Rectifier busbar; 161-First rectifier busbar board; 162-Second rectifier busbar board; 163-Third rectifier busbar board; 17-First baffle;

[0032] 21-Control board; 22-Power supply board; 23-Crowbar resistor; 24-Small light board; 25-Control frame; 26-Third baffle;

[0033] 31-Inverter water-cooled plate; 32-Inverter module; 33-Inverter adapter board; 34-Inverter driver board; 35-Inverter capacitor bank; 351-Capacitor busbar; 36-Inverter busbar; 361-First inverter busbar board; 362-Second inverter busbar board; 363-Third inverter busbar board; 37-Second baffle;

[0034] 41a - First housing; 42a - Second housing; 43a - Third housing; 44a - Busbar; 41b - First housing; 42b - Second housing; 43b - Busbar; 41c - First housing; 42c - Second housing; 43c - Busbar. Detailed Implementation

[0035] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not intended to limit it. The described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without inventive effort are within the scope of protection of the present application.

[0036] To improve the installation efficiency of power modules, this application describes the structure of the power module in detail with reference to the accompanying drawings:

[0037] See Figures 1 to 6 To achieve the above objectives, this application discloses the following technical solutions:

[0038] The power module in this application example includes a rectifier assembly 10, a control assembly 20, an inverter assembly 30, and at least two relatively independent housings 40, wherein the rectifier assembly 10 and the inverter assembly 30 are installed in different housings 40; the rectifier assembly 10 and the inverter assembly 30 are detachably electrically connected, and are also detachably electrically connected to the control assembly 20.

[0039] In the power module described above in this application, the rectifier component 10 and the inverter component 30 are installed in different housings 40, forming at least two relatively independent housings 40. Therefore, during the installation process, at least two relatively independent housings 40 can be transported separately, transported to the appropriate location, and assembled on site. Compared with the prior art, this reduces the difficulty of transportation, saves transportation time, thereby improving installation efficiency and reducing safety risks.

[0040] Because the rectifier assembly 10 and the inverter assembly 30 are detachably electrically connected, and are also detachably electrically connected to the control assembly 20, the electrical connections between the rectifier assembly 10, the control assembly 20, and the inverter assembly 30 can be disconnected during transport, and then reconnected during assembly in place.

[0041] The fact that any one or two of the aforementioned rectifier assembly 10, control assembly 20, and inverter assembly 30 are installed in the same housing 40 can be understood as follows: each of the rectifier assembly 10, control assembly 20, and inverter assembly 30 has its own independent housing 40, forming three independent housings 40; rectifier assembly 10 and control assembly 20 are located in the same housing 40, and inverter assembly 30 is located in one housing 40, forming two independent housings 40; inverter assembly 30 and control assembly 20 are located in the same housing 40, and rectifier assembly 10 is located in one housing 40, forming two independent housings 40; inverter assembly 30 and rectifier assembly 10 are located in the same housing 40, and control assembly 20 is located in one housing 40, forming two independent housings 40. In some examples, there are two housings 40, with control assembly 20 located in either the housing 40 containing rectifier assembly 10 or inverter assembly 30. That is, the control component 20 and the rectifier component 10 are located in the same housing 40, or the control component and the inverter component are located in the same housing 40. They are transported separately in two housings 40. In some examples, there are three housings 40, with the rectifier component 10, control component 20, and inverter component 30 located in different housings 40. They are transported separately in three housings 40.

[0042] See Figure 1 , Figure 1 The power module shown includes three independent housings 40, namely a first housing 41a, a second housing 42a, and a third housing 43a. The first housing 41a houses the rectifier assembly 10, the second housing 42a houses the control assembly 20, and the third housing 43a houses the inverter assembly 30. The rectifier bus 16 of the rectifier assembly 10 and the inverter bus 36 of the inverter assembly 30 are connected by a bus 44a, and the rectifier assembly 10 and the inverter assembly 30 are electrically connected to the control assembly 20.

[0043] See Figure 2 , Figure 2 The power module shown includes two independent housings 40, namely a first housing 41b and a second housing 42b. The first housing 41b is equipped with a rectifier assembly 10 and a control assembly 20, and the second housing 42b is equipped with an inverter assembly 30. The rectifier bus 16 of the rectifier assembly 10 and the inverter bus 36 of the inverter assembly 30 are connected through a bus 43b, and the rectifier assembly 10 and the inverter assembly 30 are electrically connected to the control assembly 20.

[0044] See Figure 3 , Figure 3The power module shown includes two independent housings 40, namely a first housing 41c and a second housing 42c. The first housing 41c is equipped with a rectifier assembly 10, and the second housing 42c is equipped with an inverter assembly 30 and a control assembly 20. The rectifier bus 16 of the rectifier assembly 10 and the inverter bus 36 of the inverter assembly 30 are connected through a bus 43c, and the rectifier assembly 10 and the inverter assembly 30 are electrically connected to the control assembly 20.

[0045] In other words, the rectifier assembly 10 and the inverter assembly 30 are located in different housings 40, and the different housings 40 have the same length and height. The capacitor bus of the rectifier assembly 10 and the capacitor bus of the inverter assembly 30 are connected through a busbar.

[0046] The aforementioned independent housings 40 have the same dimensions in the length and height directions, while the width dimension may vary depending on the arrangement of the internal electronic components. The length, width, and height directions are all perpendicular to each other. It should be noted that the length direction corresponds to the length of housing 40, the width direction corresponds to the width of housing 40, and the height direction corresponds to the height of housing 40, respectively corresponding to the Y, X, and Z directions in the diagram.

[0047] The above mainly describes the correspondence between the housing 40 and the rectifier assembly 10, the control assembly 20, and the inverter assembly 30. The following describes the structure of the rectifier assembly 10, the control assembly 20, and the inverter assembly 30 in detail with reference to the accompanying drawings:

[0048] See Figure 4 , Figure 4 A perspective view of a rectifier assembly 10 is shown. The rectifier assembly 10 includes a rectifier water-cooled plate 11, a rectifier module 12, a rectifier adapter board 13, a rectifier driver board 14, and a rectifier capacitor bank 15. The rectifier water-cooled plate 11, the rectifier module 12, the rectifier adapter board 13, and the rectifier driver board 14 are stacked and arranged in a first direction to form a rectifier unit. The rectifier capacitor bank 15 is arranged side by side with the rectifier unit in a second direction. The height direction of the rectifier capacitor bank 15 coincides with the first direction, and the second direction is perpendicular to the first direction.

[0049] It should be noted that the rectifier assembly 10 can be understood as having a length direction Y1, a width direction X1, and a height direction Z1, which correspond one-to-one with the length direction Y, width direction X, and height direction Z of the housing 40 on which the rectifier assembly 10 is mounted.

[0050] The rectifier water-cooled plate 11, rectifier module 12, rectifier adapter plate 13, and rectifier driver plate 14 have a length direction, a thickness direction, and a height direction. The first direction can be understood as the thickness direction of the rectifier water-cooled plate 11, rectifier module 12, rectifier adapter plate 13, and rectifier driver plate 14; the second direction can be understood as the length direction or the height direction of the rectifier water-cooled plate 11, rectifier module 12, rectifier adapter plate 13, and rectifier driver plate 14.

[0051] In the diagram, the second direction is the length direction of the rectifier water-cooled plate 11, the rectifier module 12, the rectifier adapter board 13, and the rectifier drive board 14. The rectifier capacitor cell 15 is arranged side by side with the rectifier unit in the second direction, which can reduce the width dimension of the rectifier assembly 10.

[0052] In order to improve the heat dissipation efficiency of the rectifier module 12, in this example, the rectifier module 12 is mounted on the rectifier water-cooling plate 11 by a first fastener, which can be a screw.

[0053] The aforementioned rectifier assembly 10 can be directly fixed inside the housing 40, or it can be integrated onto other components and then installed as a whole inside the housing 40.

[0054] The rectifier busbar 16 of the rectifier assembly 10 connects the rectifier capacitor bank 15 and the rectifier unit and is led out from the corresponding housing 40. Specifically, the rectifier busbar 16 includes a first rectifier busbar 161 connecting the rectifier unit, a second rectifier busbar 162 connecting the rectifier capacitor bank 15, and a third rectifier busbar 163 connecting the first rectifier busbar 161 and the second rectifier busbar 162. The first rectifier busbar 161 and the second rectifier busbar 162 are arranged staggered in a first direction.

[0055] Since the height of the capacitor bank is greater than the thickness of the rectifier unit, and the heat dissipation requirement of the rectifier module 12 is large, the first rectifier busbar 161 and the second rectifier busbar 162 are staggered in the first direction, so that a large gap is formed between the rectifier unit and the housing 40 after the rectifier assembly 10 is installed in the housing 40, which is conducive to the heat dissipation of the rectifier module 12.

[0056] As described above, the capacitor bus of the rectifier component 10 is connected to the capacitor bus of the inverter component 30. Therefore, in order to facilitate the connection between the two, the capacitor bus of the rectifier component 10 is led out in this example.

[0057] See Figure 5 , Figure 5A perspective view of a control assembly 20 is shown. The control assembly 20 includes a control board 21, a power board 22, a pry bar resistor 23, and a small light board 24. The control board 21 and the power board 22 are arranged side by side in a third direction and side by side with the pry bar resistor 23 in a fourth direction. The small light board 24 is located above the control board 21, the power board 22, and the pry bar resistor 23 in a third direction, and the third direction is perpendicular to the fourth direction.

[0058] It should be noted that the control component 20 can be understood as having a length direction Y2, a width direction X2, and a height direction Z2, which correspond one-to-one with the length direction Y, width direction X, and height direction Z of the housing 40 on which the rectifier component 10 is installed.

[0059] The control board 21 and the power board 22 have a length direction, a thickness direction, and a height direction. The third direction can be understood as the height direction of the control board 21 and the power board 22; the fourth direction can be understood as the length direction or the thickness direction of the control board 21 and the power board 22.

[0060] In the diagram, the third direction is the height direction of the control component 20, and the fourth direction is the length direction of the control component 20. The rectifier capacitor cell 15 and the rectifier unit are arranged side by side in the fourth direction, which can reduce the width dimension of the control component 20.

[0061] The aforementioned control component 20 can be directly fixed inside the housing 40, or it can be integrated onto other components and then installed as a whole inside the housing 40. Specifically, the control component 20 may also include a rectangular control frame 25, with the control board 21, power board 22, and pry bar resistor 23 located inside the control frame 25, and the small light board 24 located outside the control frame 25.

[0062] See Figure 6 , Figure 6 A perspective view of an inverter assembly 30 is shown. The inverter assembly 30 includes an inverter water-cooling plate 31, an inverter module 32, an inverter adapter board 33, an inverter driver board 34, and an inverter capacitor bank 35. The inverter water-cooling plate 31, inverter module 32, inverter adapter board 33, and inverter driver board 34 are stacked in the fifth direction to form an inverter unit. The inverter capacitor bank 35 is arranged side by side with the inverter unit in the sixth direction. The height direction of the inverter capacitor bank 35 coincides with the fifth direction, and the sixth direction is perpendicular to the fifth direction.

[0063] It should be noted that the inverter assembly 30 can be understood as having a length direction Y3, a width direction X3, and a height direction Z3, which correspond one-to-one with the length direction Y, width direction X, and height direction Z of the housing 40 on which the inverter assembly 30 is installed.

[0064] The inverter water-cooled plate 31, inverter module 32, inverter adapter board 33, and inverter driver board 34 have length, thickness, and height directions. The fifth direction can be understood as the thickness direction of the inverter water-cooled plate 31, inverter module 32, inverter adapter board 33, and inverter driver board 34; the sixth direction can be understood as the length or height direction of the inverter water-cooled plate 31, inverter module 32, inverter adapter board 33, and inverter driver board 34.

[0065] In the diagram, the sixth direction is the length direction of the inverter water-cooling plate 31, inverter module 32, inverter adapter board 33, and inverter drive board 34. The inverter capacitor cell 35 is arranged side by side with the inverter unit in the sixth direction, which can reduce the width dimension of the inverter assembly 30.

[0066] In order to improve the heat dissipation efficiency of the inverter module 32, in this example, the inverter module 32 is mounted on the inverter water cooling plate 31 by a second fastener, which can be a screw.

[0067] The inverter component 30 can be directly fixed inside the housing 40, or it can be integrated into other components and then installed as a whole inside the housing 40.

[0068] The inverter busbar 36 of the inverter assembly 30 connects the inverter capacitor bank 361 and the inverter unit, and is led out from the corresponding housing 40. Specifically, the inverter busbar 36 includes a first inverter busbar plate 361 connecting the inverter unit, a second inverter busbar plate 362 connecting the inverter capacitor bank 35, and a third inverter busbar plate 363 connecting the first inverter busbar plate 361 and the second inverter busbar plate 362. The first inverter busbar plate 361 and the second inverter busbar plate 362 are staggered in the fifth direction.

[0069] Since the height of the capacitor bank is greater than the thickness of the inverter unit, and the inverter module 32 has a large heat dissipation requirement, the first inverter busbar plate 361 and the second inverter busbar plate 362 are staggered in the fifth direction, so that a large gap is formed between the inverter unit and the housing 40 after the inverter assembly 30 is installed in the housing 40, which is conducive to the heat dissipation of the inverter module 32.

[0070] As described above, the capacitor bus of the inverter component 30 is connected to the capacitor bus of the inverter component 30. Therefore, in order to facilitate the connection between the two, the capacitor bus of the inverter component 30 is led out in this example.

[0071] The rectifier drive board 14 in the rectifier assembly 10 is connected to the control board 21 in the control assembly 20 via wires to complete signal transmission; the inverter drive board 34 in the inverter assembly 30 is connected to the control board 21 in the control assembly 20 via wires to complete signal transmission.

[0072] For ease of maintenance, a first baffle 17 is detachably provided at the location where the capacitor busbar of the housing 40 housing the rectifier assembly 10 is installed; a second baffle 37 is detachably provided at the location where the capacitor busbar of the housing 40 housing the inverter assembly 30 is installed; and a third baffle 26 is detachably provided on the housing 40 housing the control assembly 20.

[0073] The signal line connecting the rectifier assembly 10 and the control board 21 can be removed by disassembling the first baffle 17 and the third baffle 26. The baffles are located at the front, with sufficient space and convenient operation.

[0074] The signal line connecting the inverter assembly 30 and the control board 21 can be removed by disassembling the second baffle 37 and the third baffle 26. The baffles are located at the front, with sufficient space and convenient operation.

[0075] It should be noted that this application mainly protects the arrangement of the internal electronic components of the aforementioned rectifier assembly 10, control assembly 20 and inverter assembly 30.

[0076] This application provides a power conversion device, including a cabinet and a power module as described above, wherein the power module is installed inside the cabinet. Since the power module has the aforementioned effects, including the corresponding effects of the frequency converter using the power module, further details are omitted here.

[0077] The aforementioned power conversion equipment can be inverters, converters, frequency converters, and power grid simulators, etc.

[0078] In the above context, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0079] In the description of the embodiments of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone.

[0080] It should be noted that, for ease of description, only the parts relevant to the application are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0081] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed, and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. The scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A power module, characterized by The rectifier assembly (10), the control assembly (20), the inverter assembly (30) and at least two relatively independent housings (40) are included, wherein the rectifier assembly (10) and the inverter assembly (30) are located in different housings (40); the rectifier assembly (10) and the inverter assembly (30) are detachably electrically connected, and are respectively detachably electrically connected with the control assembly (20).

2. The power module of claim 1, wherein, The number of the housings (40) is two, and the control assembly (20) is located in any housing (40) where the rectifier assembly (10) and the inverter assembly (30) are located.

3. The power module of claim 1, wherein, The number of the housings (40) is three, and the rectifier assembly (10), the control assembly (20) and the inverter assembly (30) are respectively located in different housings (40).

4. The power module of claim 1, wherein, The rectifier assembly (10) includes a rectifier water-cooled plate (11), a rectifier module (12), a rectifier adapter plate (13), a rectifier drive plate (14) and a rectifier capacitor bank (15), wherein the rectifier water-cooled plate (11), the rectifier module (12), the rectifier adapter plate (13) and the rectifier drive plate (14) are stacked in a first direction and form a rectifier unit; the rectifier capacitor bank (15) is arranged side by side with the rectifier unit in a second direction, the height direction of the rectifier capacitor bank (15) coincides with the first direction, and the second direction is perpendicular to the first direction.

5. The power module of claim 4, wherein, The rectifier module (12) is installed on the rectifier water-cooled plate (11) by a first fastener.

6. The power module of claim 4, wherein, The rectifier busbar row (16) of the rectifier assembly (10) connects the rectifier capacitor bank (15) and the rectifier unit and is led out by the corresponding housing.

7. The power module of claim 4, wherein, The control assembly (20) includes a control board (21), a power supply board (22), a crowbar resistor (23) and a small lamp board (24), wherein the control board (21) and the power supply board (22) are arranged side by side in a third direction, and are arranged side by side with the crowbar resistor (23) in a fourth direction, the small lamp board (24) is located above the control board (21), the power supply board (22) and the crowbar resistor (23) in the third direction, and the third direction is perpendicular to the fourth direction.

8. The power module of claim 7, wherein, The control assembly (20) further includes a control frame (25) of a rectangular structure, the control board (21), the power supply board (22) and the crowbar resistor (23) are located inside the control frame (25), and the small lamp board (24) is located outside the control frame (25).

9. The power module of claim 4, wherein, The inverter assembly (30) comprises an inverter water-cooling plate (31), an inverter module (32), an inverter adapter plate (33), an inverter driving plate (34) and an inverter capacitor bank (35), wherein the inverter water-cooling plate (31), the inverter module (32), the inverter adapter plate (33) and the inverter driving plate (34) are stacked in a fifth direction and form an inverter unit; the inverter capacitor bank (35) is arranged side by side with the inverter unit in a sixth direction, the height direction of the inverter capacitor bank (35) coincides with the fifth direction, and the sixth direction is perpendicular to the fifth direction.

10. The power module of claim 9, wherein, The inverter module (32) is installed on the rectifier water-cooling plate (11) by a second fastener.

11. The power module of claim 9, wherein, The inverter busbar (36) of the inverter assembly (30) connects the inverter capacitor bank (35) and the inverter unit and is led out by the corresponding shell.

12. The power module of any one of claims 1 to 11, wherein, The rectifier assembly (10) and the inverter assembly (30) are respectively located in different shells (40), the different shells (40) have the same length and height, and the capacitor busbar of the rectifier assembly (10) and the capacitor busbar of the inverter assembly (30) are connected by a busbar.

13. The power module of claim 12, wherein, The part of the shell (40) mounting the rectifier assembly (10) leading out the capacitor busbar is detachably provided with a first baffle (17); The part of the shell (40) mounting the inverter assembly (30) leading out the capacitor busbar is detachably provided with a second baffle (37).

14. The power module of claim 13, wherein, The shell (40) mounting the control assembly (20) is detachably provided with a third baffle (26).

15. A power conversion device, characterized by, The power module comprises a cabinet body and the power module as claimed in any one of claims 1 to 14, and the power module is mounted in the cabinet body.

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