Power module and power module combination having the same

Abstract

This utility model relates to a power module and a power module assembly having the power module. The power module includes a housing, a water-cooled substrate disposed within the housing, and an adapter plate. The water-cooled substrate divides the internal space of the housing into a lower chamber and an upper chamber. A first electrical component is disposed in the lower chamber, and a second electrical component is disposed in the upper chamber. A first end of the adapter plate is disposed in the upper chamber, and a second end of the adapter plate passes through the water-cooled substrate and is disposed in the lower chamber. The first end of the adapter plate is electrically connected to at least one device in the second electrical component, and the second end of the adapter plate is electrically connected to at least one device in the first electrical component. The housing includes a rear panel, and the adapter plate is adjacent to the rear panel. This utility model, by placing the adapter plate near the rear panel, facilitates installation, wiring, and maintenance, and improves parallel expansion capabilities. Furthermore, the adapter plate can reduce signal interference during wiring.

Description

Technical Field

[0001] This utility model relates to the field of power supply device technology, and in particular to a power supply module and a power supply module assembly having the power supply module. Background Technology

[0002] The rapid development of solar photovoltaic panels has led to a surge in demand for power supplies for PECVD plasma equipment in the silicon crystal industry. Plasma power supplies are widely used in fields such as vacuum coating. As a product with relatively complex technology in the power supply field, it has extremely high requirements for stability in practical applications. Currently, the power density of products is increasing while the size is decreasing. This results in increased heat generation and temperature rise inside the module, making heat dissipation difficult. If heat dissipation is not timely, it can cause product failures and downtime. In addition, the compact internal space also makes it difficult to maintain vulnerable components. Therefore, for a product to have high stability, power density, and market competitiveness, it needs to be supported by a good structural space layout and heat dissipation solution.

[0003] The most common solution in the industry is to stack PCB boards and other components on one side of a water-cooled aluminum substrate and then fix them to the bottom of the chassis. Production, installation and maintenance can only be carried out from one side, which makes installation complex and maintenance difficult. Furthermore, it is not easy to achieve modular production and parallel expansion between different power ranges of each product.

[0004] Therefore, there is a need for a power module with high power density, small size, compact structure, high space utilization, modular assembly of products in different power ranges, easy installation and maintenance, and good parallel expansion capability, as well as power module combinations containing such a power module. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a power module and a power module combination having the power module.

[0006] The technical solution of this utility model is as follows:

[0007] A power module includes a housing, a water-cooled substrate disposed within the housing, and an adapter plate. The water-cooled substrate divides the internal space of the housing into a lower chamber and an upper chamber. A first electrical component is disposed in the lower chamber, and a second electrical component is disposed in the upper chamber. A first end of the adapter plate is disposed in the upper chamber, and a second end of the adapter plate passes through the water-cooled substrate and is disposed in the lower chamber. The first end of the adapter plate is electrically connected to at least one device in the second electrical component, and the second end of the adapter plate is electrically connected to at least one device in the first electrical component. The housing includes a rear panel, and the adapter plate is adjacent to the rear panel.

[0008] As a further improvement of this utility model, the first electrical component includes an input filtering module adjacent to the rear panel, and an input switch component is provided on the outer side wall of the rear panel, the input switch component being electrically connected to the input filtering module.

[0009] As a further improvement of this utility model, the input switch component includes an insulating post disposed on the rear panel, a fuse invertedly disposed on the insulating post, a fixing bracket covering the outside of the insulating post and the fuse, and an input switch disposed outside the fixing bracket. The first end of the fuse is electrically connected to the input switch, and the second end of the fuse passes through the rear panel and is electrically connected to the input filtering module.

[0010] As a further improvement of this utility model, the housing includes a front panel, the second electrical component includes a fan adjacent to the front panel, the fan is disposed in one of the lower chamber and the upper chamber, and the water-cooled substrate is provided with an air guide at one end adjacent to the rear panel, the air guide communicating with the lower chamber and the upper chamber.

[0011] As a further improvement of this utility model, the housing includes a front panel, the power module includes a tube-fin heat exchanger adjacent to the front panel and a quick-connect water inlet / outlet connector connected to the tube-fin heat exchanger, the tube-fin heat exchanger is connected to the water-cooling channel on the water-cooled substrate, and the quick-connect water inlet / outlet connector is disposed on the outside of the front panel.

[0012] As a further improvement of this utility model, the lower cavity is provided with a partition arranged in the front-to-back direction. The first electrical component includes an input filter module, an input EMC module, an input inductor, and a primary power board disposed on the left side of the partition, and an isolation transformer, a voltage regulating inductor, and a unit power supply module disposed on the right side of the partition.

[0013] As a further improvement of this utility model, the second electrical component includes two secondary power boards, which are symmetrically laid flat on the water-cooled substrate.

[0014] As a further improvement of this utility model, the second electrical component includes a power sampling module and an output filtering module. The power sampling module is disposed between the secondary power board and the rear panel, and the output filtering module is disposed between the power sampling module and the rear panel.

[0015] As a further improvement of this utility model, the second electrical component includes a control sampling module, which is stacked on top of the output filtering module and the power sampling module, and an isolation support sheet metal is provided between the control sampling module, the output filtering module, and the power sampling module.

[0016] A power module assembly includes at least two power modules as described above, the power modules being stacked in pairs, with a connecting cable between adjacent power modules, one end of the connecting cable being electrically connected to the second end of the adapter plate of the upper power module, and the other end of the connecting cable being electrically connected to the first end of the adapter plate of the lower power module.

[0017] According to the above-described solution, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model provides an adapter plate near the rear panel that extends through the upper and lower cavities of the water-cooled substrate, which facilitates installation, wiring, and maintenance, and improves parallel expansion capability. In addition, the adapter plate makes the wiring layout neater and more aesthetically pleasing, and greatly shortens the wiring length, thereby reducing costs and signal interference during wiring.

[0019] 2. This utility model installs the easily damaged fuse upside down on the outside of the rear panel with the support of the insulating column, so that the input switch component does not need to occupy the internal space of the power module, which can reduce the overall size of the power module and improve the space utilization. In addition, when the fuse is damaged, the staff does not need to open the power module when performing maintenance. They can simply remove and replace the fuse from the rear panel, which reduces the difficulty of maintenance.

[0020] 3. This utility model places the output wiring terminal on the outside of the rear panel. Compared with the common output through-wall terminal structure, its structure is simple and does not occupy internal space. The external placement of the output wiring terminal can reduce interference with internal signals. Furthermore, the output wiring terminal structure can flexibly realize various output methods such as series and parallel connection through different shapes of copper busbars.

[0021] 4. This utility model divides the inside of the power module into multiple independent areas through a water-cooled substrate and partitions, separating and shielding devices with high heat generation, low heat generation, and those that interfere with each other's signals, so that their heat dissipation does not affect each other and the heat dissipation efficiency is higher. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the upper chamber structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the upper chamber of this utility model without a control sampling module;

[0024] Figure 3 This is a schematic diagram of the lower chamber structure of this utility model;

[0025] Figure 4 This is a structural schematic diagram of the input switch component of this utility model;

[0026] Figure 5 This is a structural schematic diagram of the power module assembly of this utility model.

[0027] In the diagram: 1. Water-cooled substrate; 2. Adapter board; 31. Front panel; 32. Rear panel; 33. Left side panel; 34. Right side panel; 37. Lower chamber; 38. Upper chamber; 401. Input filter module; 402. Input EMC module; 403. Input inductor; 404. Primary power board; 405. Isolation transformer; 406. Voltage regulating inductor; 407. Unit power supply module; 408. Secondary power board; 409. Control sampling module; 410. Power sampling module; 411. Output filter module; 412. Output terminal block; 413. Insulating column; 414. Fuse; 415. Fixing bracket; 416. Input switch; 418. Partition; 419. Fan; 420. Tube-fin heat exchanger; 421. Inlet / outlet quick-connect fittings. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] See Figure 1-4. This utility model provides a power module, including a housing, a water-cooled substrate 1 disposed within the housing, and an adapter plate 2. The water-cooled substrate 1 divides the internal space of the housing into a lower chamber 37 and an upper chamber 38. A first electrical component is disposed in the lower chamber 37, and a second electrical component is disposed in the upper chamber 38. Preferably, the first electrical component is a primary-side device, and the second electrical component is a secondary-side device. Using the water-cooled substrate 1 as the interface between the lower chamber 37 and the upper chamber 38 can reduce interference between the primary and secondary sides. The first end of the adapter plate 2 is disposed in the upper chamber 38, and the second end of the adapter plate 2 passes through the water-cooled substrate 1 and is disposed in the lower chamber 37. The first end of the adapter plate 2 extends to... The adapter plate 2 is electrically connected to at least one device in the second electrical component, and the second end of the adapter plate 2 is electrically connected to at least one device in the first electrical component. The housing includes a front panel 31, a rear panel 32, a left side panel 33, a right side panel 34, an upper cover, and a lower cover. The adapter plate 2 is adjacent to the rear panel 32. When products of different power ranges need to be paralleled for capacity expansion, the rear panel 32 of the power module is first removed, and the two power modules are stacked one on top of the other. The cable at the second end of the adapter plate 2 of the upper power module is interconnected with the cable at the first end of the adapter plate 2 of the lower power module to achieve signal interconnection between the upper and lower power modules. Finally, the rear panel 32 is installed. Similarly, when there are more than two power modules, the multiple power modules are stacked one on top of the other and connected in sequence. This utility model, by setting the adapter plate 2 near the rear panel 32, facilitates installation, wiring, and maintenance, and improves parallel expansion capability. In addition, the adapter plate 2 can make the wiring layout neater and more aesthetically pleasing, and greatly shorten the wiring length, thereby reducing costs and signal interference during wiring.

[0032] As one embodiment of this utility model, the first electrical component includes an input filtering module 401 adjacent to the rear panel 32, and an input switch component is provided on the outer wall of the rear panel 32. The input switch component is electrically connected to the input filtering module 401. The second electrical component includes an output filtering module 411 adjacent to the rear panel 32, and an output terminal block 412 is provided on the outer wall of the rear panel 32. The output terminal block 412 is electrically connected to the output filtering module 411. This utility model installs the input switch component and the output terminal block 412 on the outer side of the rear panel, so that the input switch component and the output terminal block 412 do not need to occupy additional internal space of the power module, which can reduce the overall volume of the power module and improve space utilization. In addition, when the input switch component or the output terminal block 412 is damaged, the staff does not need to open the power module when performing maintenance. They can simply remove and replace it from the rear panel, reducing the maintenance difficulty. Furthermore, the external placement of the output terminal block 412 can also reduce internal signal interference, and the structure of the output terminal block 412 can flexibly realize various output methods such as series and parallel connection through different shapes of copper busbars.

[0033] As one embodiment of this utility model, the input switch component is located on the lower left side of the rear panel 32, and the output terminal 412 is located on the upper right side of the rear panel 32. By separating the input switch component and the output terminal 412 to the maximum extent, the operating space of the input end and the output end can be effectively increased. In addition, separating the input end and the output end can avoid interference between them, and at the same time, it can also reduce or avoid the risk of operators making incorrect wiring.

[0034] As an embodiment of this utility model, the input switch component includes an insulating post 413 disposed on the rear panel 32, a fuse 414 invertedly disposed on the insulating post 413, a fixing bracket 415 covering the insulating post 413 and the fuse 414, and an input switch 416 disposed outside the fixing bracket 415. The first end of the fuse 414 is electrically connected to the input switch 416. Preferably, the first end of the fuse 414 and the input switch 416 are connected by a flexible connection. The second end of the fuse 414 passes through the rear panel 32 and is electrically connected to the input filtering module 401. Preferably, the second end of the fuse 414 and the input filtering module 401 are connected by a flexible connection. This layout design satisfies the requirements of... With internal heat dissipation and air circulation, no additional space is needed inside the module, allowing for a smaller module size. The inverted installation of fuse 414 further enhances the compact structure and space utilization. The easily damaged fuse 414 is directly fixed to the outside of the module's rear panel 32. For future maintenance, it is not necessary to remove the entire power module from the cabinet or open the module's interior; simply remove and replace fuse 414 from the rear panel 32. When paralleling and expanding products with different power ratings, the connection between different levels of input fuse 414 and with internal modules is simpler. Similarly, the output and input structures maintain a consistent design, both using insulating posts 413 directly fixed and locked to the outside of the rear panel 21.

[0035] As one embodiment of this utility model, the housing includes a front panel 31, and the second electrical component includes a fan 419 adjacent to the front panel 31. The fan 419 is disposed in one of the lower chamber 37 and the upper chamber 38. The water-cooled substrate 1 is provided with an air guide port at the end adjacent to the rear panel 32. The air guide port connects the lower chamber 37 and the upper chamber 38. Taking the fan 419 disposed in the upper chamber 38 as an example, the fan delivers airflow into the upper chamber 38 to cool the second electrical component. The airflow flows to the rear panel 32 and enters the lower chamber 37 from the air guide port to cool the first electrical component. The airflow achieves internal circulation in the housing. Similarly, when the fan 419 is disposed in the lower chamber 37, the direction of the circulating airflow is reversed.

[0036] As one embodiment of this utility model, the power module includes a tube-fin heat exchanger 420 adjacent to the front panel 31 and a quick-connect water inlet / outlet connector 421 connected to the tube-fin heat exchanger 420. The tube-fin heat exchanger 420 is connected to the water-cooled flow channel on the water-cooled substrate 1. The coolant in the water-cooled substrate 1 and the coolant in the tube-fin heat exchanger 420 exchange heat through the quick-connect water inlet / outlet connector 421, ensuring the heat dissipation capacity of the water-cooled substrate 1 for the first and second electrical components. Preferably, the fan 419 and the tube-fin heat exchanger 420 are positioned opposite each other on the water-cooled substrate 1 and are both close to the front panel 31. This not only makes the overall appearance of the power module neat and orderly but also reduces interference or other problems caused by the heat dissipation devices to other electrical components. To minimize unnecessary impact and improve overall reliability and stability, taking the example of a fan 419 located in the upper chamber 38 and a tube-fin heat exchanger 420 located in the lower chamber 37, the airflow from the fan 419 passes sequentially through the second electrical component, the air vent, and the first electrical component, absorbing heat from the second and first electrical components before finally exchanging heat with the tube-fin heat exchanger 420. This ensures that the circulating airflow within the casing remains at a low temperature, improving the air cooling capacity of the first and second electrical components. The quick-connect water inlet / outlet connector 421 is located on the outside of the front panel 31, eliminating the need for additional internal module space. This allows for a smaller module size and facilitates easy replacement and maintenance of the quick-connect connector 421, improving work efficiency. Similarly, when the fan 419 is located in the lower chamber 37 and the tube-fin heat exchanger 420 is located in the upper chamber 38, the airflow from the fan 419 passes sequentially through the first electrical component, the air vent, and the second electrical component, absorbing heat from the first and second electrical components before finally exchanging heat with the tube-fin heat exchanger 420.

[0037] In one embodiment of this utility model, a partition 418 arranged in the front-to-back direction is provided in the lower chamber 37. The first electrical components include an input filter module 401, an input EMC module 402, an input inductor 403, and a primary-side power board 404 disposed on the left side of the partition 418, and an isolation transformer 405, a voltage regulating inductor 406, and a unit power supply module 407 disposed on the right side of the partition 418. The partition 418 isolates and shields high-frequency interference sources such as the unit power supply module 407 from the primary-side input. At the same time, since the unit power supply module 407 is arranged in the lower chamber 37, it can also reduce the impact of high-frequency interference sources on the secondary-side output through partition isolation by the water-cooled substrate 1. To mitigate interference, this invention employs a multi-cavity air duct design, isolating components with high and low heat generation within the module. This ensures that their heat dissipation does not interfere with each other, resulting in higher heat dissipation efficiency. Magnetic components such as the isolation transformer 405, voltage regulating inductor 406, and input filter module 401 are centrally arranged in the lower cavity 37. Each magnetic component is individually integrated and potted with glue before being encapsulated into the housing to form a whole. It is then fixedly attached to the water-cooled substrate 1 for centralized heat dissipation, further enhancing heat dissipation efficiency. The integrated potting optimizes the overall module power structure, making the spatial layout more compact. At the same power density, the volume can be reduced, and the amount of potting glue and housing size are decreased, leading to a corresponding reduction in cost.

[0038] As an embodiment of this utility model, the second electrical component includes two secondary power boards 408, which are symmetrically laid flat on the water-cooled substrate 1. The two secondary power boards 408 occupy the width of the entire upper cavity 38 of the power module, that is, their total length extends to completely cover the effective width range of the upper cavity 38 of the power module. Preferably, the secondary power boards 408 and the primary power boards 404 are arranged opposite to each other on both sides of the water-cooled substrate 1. Wiring holes are provided on the water-cooled substrate 1 below the secondary power boards 408. The two secondary power boards 408 respectively lead out connecting wires, pass through the wiring holes, and complete the electrical connection with the primary power board 404. The two secondary power boards 408 work independently and there is no interference or influence between them.

[0039] As an embodiment of this utility model, the second electrical component includes a power sampling module 410 and an output filtering module 411. The power sampling module 410 is disposed between the secondary power board 408 and the rear panel 32, and the output filtering module 411 is disposed between the power sampling module 410 and the rear panel 32. The second electrical component includes a control sampling module 409, which is stacked on top of the output filtering module 411 and the power sampling module 410. This layout structure can make full use of the space volume, improving the space utilization rate by 20-30% compared with the traditional planar layout scheme, and can also effectively shorten the wiring distance between each functional unit and reduce costs.

[0040] As an embodiment of this utility model, an isolation support sheet metal is provided between the control sampling module 409, the output filtering module 411, and the power sampling module 410. This not only provides effective support for the control sampling module 409 but also forms an effective electromagnetic shielding barrier, reducing the interference of secondary output power on the control side and improving the overall working stability and reliability.

[0041] See Figure 5 This utility model provides a power module assembly, including at least two power modules stacked in pairs. A connecting cable is provided between adjacent power modules. One end of the connecting cable is electrically connected to the second end of the adapter plate 2 of the upper power module, and the other end of the connecting cable is electrically connected to the first end of the adapter plate 2 of the lower power module. When products of different power ranges need to be paralleled for capacity expansion, the rear panel 32 of the power modules is first removed, the two power modules are stacked one on top of the other, and the second end of the adapter plate 2 of the upper power module is electrically connected to the first end of the adapter plate 2 of the lower power module through the connecting cable to realize the signal interconnection between the upper and lower power modules. Finally, the rear panel 32 is installed.

[0042] In summary, this utility model provides a power module and a power module assembly having the power module. By setting the adapter plate 2 near the rear panel 32, installation, wiring, and maintenance are facilitated, and parallel expansion is improved. Furthermore, the adapter plate 2 makes the wiring layout neater and more aesthetically pleasing, and significantly shortens the wiring length, reducing both cost and signal interference during wiring. Installing the input switch component and output terminal 412 on the outside of the rear panel eliminates the need for these components to occupy additional internal space in the power module, reducing the overall size of the power module and improving space utilization. Moreover, when the input switch component or output terminal 412 is damaged, maintenance personnel can remove and replace it from the rear panel without opening the power module, reducing maintenance difficulty. Additionally, the external placement of the output terminal 412 reduces internal signal interference, and the structure of the output terminal 412, through different... The copper busbars in this shape allow for flexible implementation of various output methods, including series and parallel connections. A water-cooled substrate 1 serves as the interface between the lower chamber 37 and the upper chamber 38. Primary-side devices are arranged in the lower chamber 37, while secondary-side devices are arranged in the upper chamber 38, reducing interference between the primary and secondary sides. The control sampling module 409 is stacked above the output filter module 411 and the power sampling module 410, maximizing space utilization (20-30% higher than traditional planar layouts) and effectively shortening wiring distances between functional units, thus reducing costs. The isolation support sheet metal effectively supports the control sampling module 409 and forms an effective electromagnetic shield, reducing interference from secondary-side output power to the control side and improving overall operational stability and reliability. A multi-cavity air duct design isolates high-heat-generating and low-heat-generating devices within the module, ensuring mutual heat dissipation without interference and resulting in higher heat dissipation efficiency.

[0043] It should be emphasized that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A power module, characterized in that, The device includes a housing, a water-cooled substrate (1) disposed within the housing, and a connecting plate (2). The water-cooled substrate (1) divides the internal space of the housing into a lower chamber (37) and an upper chamber (38). A first electrical component is disposed in the lower chamber (37), and a second electrical component is disposed in the upper chamber (38). A first end of the connecting plate (2) is disposed in the upper chamber (38), and a second end of the connecting plate (2) passes through the water-cooled substrate (1) and is disposed in the lower chamber (37). The first end of the connecting plate (2) is electrically connected to at least one device in the second electrical component, and the second end of the connecting plate (2) is electrically connected to at least one device in the first electrical component. The housing includes a rear panel (32), and the connecting plate (2) is adjacent to the rear panel (32).

2. The power module according to claim 1, characterized in that, The first electrical component includes an input filtering module (401) adjacent to the rear panel (32), and an input switch component is provided on the outer side wall of the rear panel (32), the input switch component being electrically connected to the input filtering module (401).

3. The power module according to claim 2, characterized in that, The input switch component includes an insulating post (413) disposed on the rear panel (32), a fuse (414) disposed upside down on the insulating post (413), a fixing bracket (415) covering the insulating post (413) and the fuse (414), and an input switch (416) disposed outside the fixing bracket (415). The first end of the fuse (414) is electrically connected to the input switch (416), and the second end of the fuse (414) passes through the rear panel (32) and is electrically connected to the input filter module (401).

4. The power module according to claim 1, characterized in that, The housing includes a front panel (31), and the second electrical component includes a fan (419) adjacent to the front panel (31). The fan (419) is disposed in one of the lower chamber (37) and the upper chamber (38). The water-cooled substrate (1) is provided with an air guide at one end adjacent to the rear panel (32), and the air guide communicates with the lower chamber (37) and the upper chamber (38).

5. The power module according to claim 1, characterized in that, The housing includes a front panel (31), and the power module includes a tube-fin heat exchanger (420) adjacent to the front panel (31) and a quick-connect water inlet / outlet connector (421) connected to the tube-fin heat exchanger (420). The tube-fin heat exchanger (420) is connected to the water-cooled flow channel on the water-cooled substrate (1), and the quick-connect water inlet / outlet connector (421) is located on the outside of the front panel (31).

6. The power module according to claim 1, characterized in that, The lower chamber (37) is provided with a partition (418) arranged in the front-to-back direction. The first electrical component includes an input filter module (401), an input EMC module (402), an input inductor (403), and a primary power board (404) arranged on the left side of the partition (418), and an isolation transformer (405), a voltage regulating inductor (406), and a unit power supply module (407) arranged on the right side of the partition (418).

7. The power module according to claim 1, characterized in that, The second electrical component includes two secondary power boards (408), which are symmetrically laid on the water-cooled substrate (1).

8. The power module according to claim 7, characterized in that, The second electrical component includes a power sampling module (410) and an output filtering module (411). The power sampling module (410) is disposed between the secondary power board (408) and the rear panel (32), and the output filtering module (411) is disposed between the power sampling module (410) and the rear panel (32).

9. The power module according to claim 8, characterized in that, The second electrical component includes a control sampling module (409), which is stacked on top of the output filter module (411) and the power sampling module (410). An isolation support sheet metal is provided between the control sampling module (409) and the output filter module (411) and the power sampling module (410).

10. A power module assembly, characterized in that, It includes at least two power modules as described in any one of claims 1-9, the power modules are stacked in pairs, a connecting cable is provided between two adjacent power modules, one end of the connecting cable is electrically connected to the second end of the adapter plate (2) of the upper power module, and the other end of the connecting cable is electrically connected to the first end of the adapter plate (2) of the lower power module.

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