Support frame of power module, power module and stack thereof, and uninterruptible power supply

Abstract

The utility model relates to a support frame of a power module, the power module and a stack thereof, and an uninterruptible power supply. The power module comprises a first electrical network and a second electrical network which are connected with each other. The support frame comprises two opposite side plates; the partition plate is connected between the two side plates, the two opposite surfaces of the partition plate and the two side plates define two opposite containing spaces, and the two containing spaces are suitable for containing the first electrical network and the second electrical network respectively.

Description

Technical Field

[0001] This utility model relates to power supply equipment, and more particularly to a support frame for power modules, power modules and their stacking, and uninterruptible power supplies. Background Technology

[0002] With the development of electrical equipment technology, in order to improve production efficiency and reduce production costs while improving utilization efficiency, the industry is increasingly inclined towards modular design, such as modular uninterruptible power supplies (UPS), modular switch cabinets, and modular servers. Modular equipment typically adopts a withdrawable design and includes modules that can be plugged into the chassis, such as the power modules in a modular UPS.

[0003] Regardless of the type of power module, a housing is required to house the electrical network. Currently known power module housings use a two-piece interlocking design, with each internal PCBA (Printed Circuit Board Assembly) fixed to one of the two pieces. Assembling such a power module requires first connecting the cables to the corresponding PCBAs on the two pieces, and then interlocking the two pieces together. This interlocking design necessitates pre-installed, relatively long internal cables due to assembly requirements, which increases the overall cost and results in unnecessary waste. Summary of the Invention

[0004] The present invention aims to provide a support frame for a power module, which can at least solve some of the above-mentioned technical problems.

[0005] This invention also aims to provide a power module that utilizes the aforementioned improved support frame.

[0006] This invention also aims to provide a stack of power modules using the aforementioned improved support frame.

[0007] This invention also aims to provide an uninterruptible power supply that utilizes the aforementioned improved power module.

[0008] According to one aspect of the present invention, a support frame for a power module is provided. The power module includes a first electrical network and a second electrical network connected to each other. The support frame includes two opposing side plates and a partition connected between the two side plates. The partition, with its two opposing surfaces, respectively encloses two receiving spaces opposite to each other with the two side plates. The two receiving spaces are respectively adapted to accommodate the first electrical network and the second electrical network.

[0009] According to the power module support frame proposed in this solution, the middle partition serves as the mounting base for the first and second electrical networks in the power module, allowing the first and second electrical networks to be mounted "back-to-back" on the support frame. The cables or connectors required to connect the first and second electrical networks can pass through the through holes in the partition, eliminating the need to pre-install long cables. This makes the assembly of the power module much more convenient.

[0010] In some embodiments, the power module further includes a fan unit, the side plate includes two opposing first sides and two opposing second sides connected between the two first sides, the partition is oriented in the same or similar orientation as the two first sides and spaced apart from one of the two second sides, the fan unit is adapted to be connected to the second side, thereby forming a gap between the partition and the fan unit that communicates with the receiving space.

[0011] In some embodiments, the fan unit has a fan bracket, and the support frame further includes at least one reinforcing structure that is perpendicular to and connected to the partition and is capable of being connected to the fan bracket.

[0012] In some embodiments, the support frame further includes two insulating films disposed on the two surfaces of the partition, and the two insulating films are capable of separating the partition from the first electrical network and the second electrical network, respectively.

[0013] In some embodiments, the partition and the two insulating films are respectively formed with a plurality of through holes for the current-passing connector to pass through, the current-passing connector being used to connect the first electrical network and the second electrical network.

[0014] In some embodiments, the support frame further includes a cover plate connected between the two side plates and spaced apart from the partition, and the accommodating space is located between the cover plate and the partition.

[0015] In some embodiments, the cover plate includes a rigid plate and an insulating member covering the plate, the insulating member being attached to the surface of the plate facing the partition.

[0016] According to another aspect of the present invention, a power module is provided, including a support frame and a first electrical network and a second electrical network mounted on the support frame, wherein the support frame is the aforementioned support frame.

[0017] According to another aspect of the present invention, a stack of power modules is provided, wherein the power modules are the aforementioned power modules, and a cover plate is provided between two adjacent power modules, the cover plate being connected between the two side plates.

[0018] According to another aspect of the present invention, an uninterruptible power supply is provided, comprising at least one power module or at least a stack of power modules, wherein the at least one power module is the aforementioned power module, and the stack of at least one power module is the aforementioned power module stack.

[0019] Other features and advantages of this invention will partly be apparent to those skilled in the art upon reading this application, and partly will be described below in conjunction with the accompanying drawings in the detailed description. Attached Figure Description

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the support frame according to an embodiment of the present utility model;

[0022] Figure 2 This is an exploded view of the support frame according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of a first power module according to an embodiment of the present invention;

[0024] Figure 4 This is an exploded view of a first power module according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of a second power module according to an embodiment of the present invention;

[0026] Figure 6 This is an exploded view of a second power module according to an embodiment of the present invention;

[0027] Figure 7 This is a partial schematic diagram of a power module according to an embodiment of the present invention, showing the reinforcing structure;

[0028] Figure 8 This is a schematic diagram of the stacking of power modules according to an embodiment of the present invention;

[0029] Figure 9 This is an exploded view of the stacking of power modules according to an embodiment of the present invention;

[0030] Figure 10 This is a partial schematic diagram of a power module according to an embodiment of the present invention;

[0031] Figure 11 yes Figure 10 A magnified view of point A of the power module.

[0032] Explanation of reference numerals in the attached figures

[0033] 1-Support frame; 10-Partition; 101-Flanged edge; 102-Protrusion; 11-First insulating film; 111-Flanged edge; 12-Second insulating film; 121-Flanged edge; 13-Side plate; 131-First side; 132-Second side; 14-Cover plate; 141-Panel; 142-Insulating component; 2-Power module; 20-First electrical network; 21-Second electrical network; 22-Current flow connector; 23-Fan unit; 231-Bracket; 232-Fan; 233-Panel; 24-Hot-swap connection unit; 241-Mounting box; 2411-Inner cavity; 242-Hot-swap connector; 3-Power module; 30-First electrical network; 31-Second electrical network; 32-Current flow connector; 33-Fan unit; 331-Bracket; 332-Fan; 4-Reinforcing structure Detailed Implementation

[0034] The schematic solutions of the technical solutions disclosed in this utility model are now described in detail with reference to the accompanying drawings. Although the drawings are provided to illustrate some embodiments of this utility model, the drawings are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut to better illustrate and explain the disclosure of this utility model. Some components in the drawings may be repositioned according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0035] Certain directional terms used in the description of the accompanying drawings below, such as “inner,” “outer,” “above,” “below,” and other directional terms, will be understood to have their normal meaning and refer to those directions as normally viewed in the accompanying drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0036] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.

[0037] This invention aims to provide an "I"-shaped support frame that can be used for various types of power modules. When used to assemble electrical networks, it eliminates the need to reserve long cables, has a simplified structure and wide adaptability, and can effectively reduce the weight and cost of the entire device.

[0038] Figure 1 and Figure 2 An exemplary structure of a support frame is shown. As shown, the support frame 1 includes a central partition 10 and two side plates 13 connected to opposite ends of the partition 10. Figure 2 As shown in detail, each side panel 13 includes two elongated and parallel first side edges 131 and two shorter second side edges 132 connecting the two first side edges 131. The two first side edges 131 and the two second side edges 132 define a rectangular outline of the side panel 13. A partition 10 is connected to the side panel 13 between the two first side edges 131 and may be parallel to or substantially parallel to the two first side edges 131, thereby constructing the main body of the I-shaped support frame 1. In one embodiment, the distance between the partition 10 and the two first side edges 131 of the side panel 13 is substantially equal.

[0039] The partition 10 can be connected to the two side plates 13 in any suitable manner, preferably detachably. For this purpose, the partition 10 has flanges 101 formed at its opposite ends, and a detachable connection structure is provided between the flanges 101 and the side plates 13. For example, one of the flanges 101 and the side plate 13 may have a latch, while the other flange 101 and the side plate 13 may have a hook or snap that can be inserted into the latch. Alternatively, both the flanges 101 and the side plates 13 may have through holes for fasteners such as bolts to pass through. The partition 10 can be a single piece, wherein the flanges 101 can be formed by bending the side of a single sheet of material. The direction of the flanges 101 can be designed as needed; the figure shows two flanges 101 of the partition 10 extending toward the same side. In other embodiments not shown, the two flanges 101 of the partition 10 may extend toward opposite sides.

[0040] The two opposing surfaces of the partition 10 serve as mounting or supporting surfaces for different electrical networks of the power module. When the partition 10 is connected to the side plate 13 between the two first sides 131, the two opposing surfaces of the partition 10 and the side plates 13 on both sides enclose two receiving spaces. These two receiving spaces are open to each other with the partition 10 as the bottom surface, and are used to house the different electrical networks of the power module "back-to-back". These electrical networks generally include various electronic devices, such as relays, bus (BUS) capacitors, inductors, and semiconductor power devices (such as IGBT modules), to achieve functions such as current conversion.

[0041] Compared to the interlocking shell structure in the prior art, the support frame 1 provided in this application does not require long cables when assembling the first electrical network and the second electrical network in two accommodating spaces. The electrical connection between the two can be achieved directly using conductive studs and other current-carrying components. This eliminates the need for cables, reduces material costs, simplifies the assembly method, and improves assembly efficiency, making the support frame widely applicable and capable of mass production.

[0042] In addition to the partition 10 shown in the figure connecting to the side plate 13 between the two first sides 131 to form an "I"-shaped frame body, it is also conceivable that the partition 10 can be connected to the side plate 13 by roughly aligning with one of the two first sides 131. In this case, the partition 10 and the two side plates 13 form a "U"-shaped frame body. The partition 10 still uses its two opposing surfaces as mounting or supporting surfaces for different electrical networks, but only forms a receiving space on one side with the two side plates 13.

[0043] The partition 10 is typically made of metal. To safely install each electrical network to the partition 10, insulating material can be placed on the partition 10 to isolate the metal partition 10 from the electrical network. For example... Figure 4 and Figure 6 As shown, a first insulating film 11 and a second insulating film 12 are attached to two opposing surfaces of the partition 10, and each electrical network is disposed on the corresponding insulating film. The dimensions of the first insulating film 11 and the second insulating film 12 are based on the dimensions of the electrical networks to be installed thereon, for example, based on the dimensions of the PCBA, and may be slightly larger than the dimensions of the PCBA.

[0044] The first insulating film 11 and the second insulating film 12 may form flanges 111 and 121 at opposite ends, respectively. These flanges 111 and 121 are attached to the corresponding side plate 13 or the corresponding flange 101 of the partition 10, respectively, to completely isolate the electrical network from the partition 10 and the side plate 13.

[0045] As an optional accessory, the support frame 1 may also be provided with a cover plate 14 (in Figure 4 and Figure 8 (As shown in the figure) to meet the structural requirements of different types of power modules. The cover plate 14 can have a certain rigidity and strength, and can be connected between the two side plates 13 at intervals with the partition plate 10, thereby forming the housing of the power module together with the two side plates 13. In one embodiment, the cover plate 14 is a laminate including a rigid plate 141 and an insulating member 142, such as an insulating film, covering the plate 141. The plate 141 can be made of the same metal plate as the partition plate 10 and the side plates 13. The insulating member 142 is attached to the plate 141 at least on the side of the plate 141 facing the partition plate 10, and is large enough to completely cover this side of the plate 141. For different types of power modules, the plate 141 may also have the insulating member 142 attached to both the side facing the partition plate 10 and the side away from the partition plate 10.

[0046] The support frame 1 provided in this solution can be applied to various types of power modules, such as modular power modules and tower power modules. The application of the support frame 1 in these power modules will be described in detail below with reference to the accompanying drawings.

[0047] Figure 3 and Figure 4 An exemplary power module 2 (hereinafter referred to as "power module 2") is shown. As shown, power module 2 includes a robust housing and multiple electrical networks housed within the housing. A fan unit 23 and a hot-swappable connection unit 24 are respectively mounted at opposite ends of the housing. Figure 4 As shown in detail, the partition 10 of the supporting frame 1 uses its two opposing sides as the mounting bases for the first electrical network 20 and the second electrical network 21, respectively. A first insulating film 11 and a second insulating film 12 are attached to these two sides of the partition 10, respectively. The first electrical network 20 is arranged on the first insulating film 11, and the second electrical network 21 is arranged on the second insulating film 12, thus the two electrical networks are mounted back-to-back. The dimensions of the first insulating film 11 match the dimensions of the first electrical network 20, specifically the dimensions of the PCBA of the first electrical network 20, to completely separate the first electrical network 20 from the partition 10. Similarly, the dimensions of the second insulating film 12 match the dimensions of the second electrical network 21, specifically the dimensions of the PCBA of the second electrical network 21, to completely separate the second electrical network 21 from the partition 10.

[0048] Cover plates 14 are respectively provided on opposite sides of the partition 10, each cover plate 14 connecting between two side plates 13, and the aforementioned accommodating space is located between the cover plate 14 and the partition 10. For a single power module 2, the two cover plates 14 and the two side plates 13 together construct a robust housing, accommodating the first electrical network 20 and the second electrical network 21 therein. The cover plate 14 adopts a laminated construction, wherein an insulating member 142 is attached to the side of the metal plate 141 facing the partition 10. The insulating member 142 can completely cover the side of the plate 141, and its hardness can be greater than that of the first insulating film 11 and the second insulating film 12, thereby providing protection for the electrical network while providing reliable insulation.

[0049] The first electrical network 20 and the second electrical network 21 are connected to realize the predetermined function of the power module 2. Here, at least a portion of the connection between the first electrical network 20 and the second electrical network 21 can be achieved by means of through holes formed in the partition 10, the first insulating film 11 and the second insulating film 12. The current-carrying connector 22 can pass through these through holes to connect to the first electrical network 20 and the second electrical network 21 respectively.

[0050] The diameters of the through holes through which the current-carrying connectors 22 pass in the partition 10 and the first insulating film 11 and the second insulating film 12 can be different. In one embodiment, the diameters of the through holes in the first insulating film 11 and the second insulating film 12 can be approximately the same, while the diameter of the through hole in the partition 10 is larger than that in the first insulating film 11 and the second insulating film 12. A gap exists between the outer periphery of the current-carrying connector 22 connected to the first electrical network 20 and the second electrical network 21 and the inner periphery of the through holes in the first insulating film 11 and the second insulating film 12 to meet safety requirements.

[0051] In power module 2, the bracket 231 of fan unit 23 is connected to two side plates 13 at one end of power module 2. Fan 232 and panel 233 are respectively mounted to bracket 231, and fan 232 is sandwiched between panel 233 and bracket 231. Fan unit 23 can be detachably connected to side plate 13 in any suitable manner. In one embodiment, side plate 13 forms, for example, an inwardly folded flange on a second side 132, and the bracket 231 of fan unit 23 can be bolted or snapped to the flange on the second side 132 of side plate 132. At the opposite end of power module 2, mounting box 241 of hot-swappable connection unit 24 is connected to the two side plates 13. Mounting box 241 has an inner cavity 2411 opening toward partition 10 and an opening communicating with the inner cavity 2411. Hot-swappable connector 242 is mounted to mounting box 241, and the wiring of hot-swappable connector 242 is accommodated in inner cavity 2411. The hot-swappable connection unit 24 can be detachably connected to the side panel 13 in a manner similar to that of the fan unit 23. In one embodiment, the side panel 13 also has an inwardly folded flange on the opposite second side 132, and the mounting box 241 of the hot-swappable connection unit 24 can be bolted or snapped to the flange of the second side 132 of the side panel 132.

[0052] Figure 5 and Figure 6 An exemplary diagram of a tower air conditioner power module 3 (hereinafter referred to as "power module 3") is shown. As illustrated, unlike modular air conditioner power modules, the support frame 1 of a single tower air conditioner power module 3 does not require an additional cover plate 14. Figure 6As shown in detail, the partition 10 of the supporting frame 1 uses its two opposing sides as the mounting bases for the first electrical network 30 and the second electrical network 31, respectively. A first insulating film 11 and a second insulating film 12 are attached to these two sides of the partition 10, respectively. The first electrical network 30 is arranged on the first insulating film 11, and the second electrical network 31 is arranged on the second insulating film 12, thus the two electrical networks are mounted back-to-back. The dimensions of the first insulating film 11 match the dimensions of the first electrical network 30, specifically the dimensions of the PCBA of the first electrical network 30, to completely separate the first electrical network 30 from the partition 10. Similarly, the dimensions of the second insulating film 12 match the dimensions of the second electrical network 31, specifically the dimensions of the PCBA of the second electrical network 31, to completely separate the second electrical network 31 from the partition 10.

[0053] The first electrical network 30 and the second electrical network 31 are connected to realize the predetermined function of the power module 3. Here, at least a portion of the connection between the first electrical network 30 and the second electrical network 31 can be achieved via through-holes formed in the partition 10, the first insulating film 11, and the second insulating film 12. The current-carrying connector 32 can pass through these through-holes to connect to the first electrical network 30 and the second electrical network 31, respectively. Figure 9 and Figure 10 In the illustrated embodiment, the current-carrying connector 32 is a current-carrying stud, whose two ends can be easily and conveniently fixed to the PCBA of the first electrical network 30 and the second electrical network 31, thereby undertaking wiring functions such as power section wiring. Using the current-carrying connector 32 to replace at least a portion of the cables can effectively reduce the amount of cable used. When installing the first electrical network 30 and the second electrical network 31 to the "I"-shaped support frame 1, there is no need to reserve long cables, improving the electrical network layout and facilitating installation and maintenance. Although Figure 9 and Figure 10 Taking the tower air conditioner power module 3 as an example, the installation of the flow-through connector 32 on the support frame 1 is shown in detail. However, those skilled in the art will understand that the installation of the same or similar flow-through connector 32 on the support frame 1 can be applied to other applications. Figure 3 and Figure 4 In the power module 2 shown, the current-carrying connector 22 is installed on the support frame 1 to replace the original cable connection.

[0054] In power module 3, the bracket 331 of fan unit 33 is connected to two side plates 13 at one end of power module 3, and the fan is mounted to bracket 331. The front panel is omitted here. Fan unit 33 can be detachably connected to side plates 13 in any suitable manner. For example, with... Figure 3 and Figure 4Similarly, in the embodiment shown, the side plate 13 forms an inwardly folded flange on a second side 132, and the bracket 331 of the fan unit 33 can be connected to the flange of the second side 132 of the side plate 132 by bolts or clips.

[0055] Figure 7 The diagram illustrates the internal structure of the power module, particularly the positional relationship between the partition 10 and the support 331 of the fan unit 33. This power module can be either a modular power module or a tower power module. As shown, the support 331 of the fan unit 33 connects to a flange formed at a second side edge 132 of the side plate 13, while the partition 10 does not extend to this second side edge 132 but is spaced apart from it. This creates a gap between the support 331 of the fan unit 33 and the partition 10, which acts as an air duct to prevent the partition 10 from being too close to the fan unit 33 and generating noise. This gap connects to the receiving space on the support frame 1 that houses the electrical network, allowing the fan unit 33 to directly blow heat onto the electrical network within each receiving space, thus improving the equipment's lifespan. The fan unit 33 can be designed as one or two units depending on actual heat dissipation requirements, and can be biased towards the side with higher heat dissipation needs, or can be symmetrically arranged relative to the partition 10; this application does not impose any limitations on this. Optionally, the fan unit 33 has a fan bracket 331, and the support frame 1 further includes at least one reinforcing structure 4, which is located between the partition 10 and the fan unit 33, is perpendicular to and connected to the partition 10, and can be connected to the fan bracket 331.

[0056] In some embodiments, the partition 10 needs to bear a large load, but simply increasing the thickness of the partition 10 would result in a large overall weight. This embodiment addresses this by providing one or more reinforcing structures 4 on one or both sides of the partition 10 near the second side 132. The reinforcing structures 4 can be columnar or strip-shaped reinforcing ribs, perpendicular to the support surface of the partition 10 and connected to it. In practical applications, each reinforcing structure 4 can be simultaneously fixed to the fan bracket 331, which not only improves the support strength of the partition 10 but also prevents the partition 10 from swaying in its support direction, thus improving the structural stability of the entire support frame 1.

[0057] To securely connect the reinforcing structure 4 to the partition 10, a protrusion 102 extending toward the fan unit 33 can be formed on the side of the partition 10 facing the fan unit 33. One end of the reinforcing structure 4 is detachably connected to the fan unit 33, and the other end has a hinge formed against the protrusion 102. This hinge rests against the protrusion 102 of the partition 10 and is detachably connected to the protrusion 102 by means of a fastener such as bolts. This reduces vibration of the partition 10.

[0058] As can be seen from the above embodiments, the support frame 1 of this utility model can be freely converted between the housing of the modular power module and the housing of the tower power module as needed, thus exhibiting high adaptability. The support frame 1 proposed by this utility model solves the problem of incompatibility in the prior art, especially between the housings of modular power modules and tower power modules of the same power range, due to significant functional differences. Therefore, it can reduce additional design and effectively lower costs.

[0059] also, Figure 3-4 and Figure 5-6 The images shown are of single power modules, but some uninterruptible power supplies (UPS), such as high-power UPS, may require stacking multiple power modules to complete their intended functions. Taking tower air conditioner power modules as an example, existing interlocking enclosure power modules require two enclosure layers for isolation between adjacent modules when stacked. This increases the overall weight and cost of the entire unit. It also increases design redundancy in terms of "inter-module isolation." The support frame 1 proposed in this invention improves the stacking configuration of power modules, effectively reducing product weight and cost while ensuring product functionality.

[0060] Figure 7 and Figure 8 The diagram illustrates a stack of multiple power modules, using a tower air conditioner power module 3 as an example. As shown, when multiple power modules 3 are stacked, the support frame 1 requires an additional cover plate 14 to isolate adjacent power modules 3. Specifically, upon completion... Figure 5 and Figure 6 After the assembly of the single power module 3 shown, a cover plate 14 is installed between two power modules 3 to be adjacent. The cover plate 14 can be connected to the support frame 1 of one of the power modules 3, or it can be connected to the support frames 1 of both power modules 3 respectively. The two opposing sides of the metal plate 141 of the cover plate 14 face the two power modules 3 respectively, so it is necessary to attach an insulating member 142 to both sides of the plate 141. Each insulating member 142 can completely cover the corresponding side of the plate 141, and its hardness can be greater than that of the first insulating film 11 and the second insulating film 12, thereby providing protection for the electrical network while providing reliable insulation. It can be seen that when multiple power modules are stacked using the support frame proposed in this utility model, two adjacent power modules can be isolated by only one additional cover plate, effectively reducing the weight of the whole machine and reducing the cost. Although the figure only shows the support frame 1 for stacking multiple power modules using a tower air conditioner power module as an example, those skilled in the art will realize that modular air conditioner power modules can also form a stacked configuration with reduced overall weight by using the support frame 1.

[0061] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0062] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes, modifications, and combinations made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A support frame for a power module, the power module comprising a first electrical network and a second electrical network connected together, characterised in that, The support frame comprises: two opposite side plates; a partition plate connected between the two side plates, the partition plate having two surfaces opposite to each other, and the two surfaces and the two side plates respectively form two accommodation spaces opposite to each other, and the two accommodation spaces are respectively adapted to accommodate the first electrical network and the second electrical network.

2. The support frame of a power module according to claim 1, characterized in that, The power module further comprises a fan unit, the side plate comprises two opposite first side edges and two opposite second side edges connected between the two first side edges, the partition plate is oriented the same or similar to the two first side edges and is spaced apart from one of the two second side edges, and the fan unit is adapted to be connected to the one of the second side edges, so that a gap is formed between the partition plate and the fan unit and is communicated with the accommodation space.

3. The support frame of a power module according to claim 2, characterized in that, The fan unit has a fan bracket, and the support frame further comprises at least one reinforcing structure, the reinforcing structure is perpendicular to and connected to the partition plate, and is capable of being connected to the fan bracket.

4. The support frame of a power module according to claim 1, characterized in that, The support frame further comprises two insulation films respectively arranged on the two surfaces of the partition plate, and the two insulation films are capable of separating the partition plate from the first electrical network and the second electrical network respectively.

5. The support frame of a power module according to claim 4, characterized in that, The partition plate and the two insulation films respectively correspondingly form a plurality of through holes for passing through a through-flow connector, and the through-flow connector is used to connect the first electrical network and the second electrical network.

6. The support frame of a power module according to any one of claims 1 to 5, characterized in that, The support frame further comprises a cover plate connected between the two side plates and spaced apart from the partition plate, and the accommodation space is located between the cover plate and the partition plate.

7. The support frame of a power module according to claim 6, characterized in that The cover plate comprises a rigid plate member and an insulation member covering the plate member, and the insulation member is attached to a surface of the plate member facing the partition plate.

8. A power module, characterized by The power module comprises a support frame and a first electrical network and a second electrical network mounted on the support frame, and the support frame is any one of the support frames according to claims 1 to 7.

9. A stack of power modules, characterized by The power module according to claim 8, wherein a cover plate is arranged between two adjacent power modules, and the cover plate is connected between the two side plates.

10. An uninterruptible power supply comprising at least one power module or a stack of at least one power module, characterized in that, The at least one power module is the power module according to claim 8, and the stack of the at least one group of power modules is the stack of power modules according to claim 9.

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