Cabinet assemblies and solar power plants

Abstract

To provide a cabinet assembly capable of reducing heat dissipation cost of a conductive member and a photovoltaic power plant.SOLUTION: A cabinet assembly includes at least one cabinet (1), a conductive member (3) and a protective cover assembly (4). The conductive member (3) is electrically connectable to a cabinet output member of the cabinet (1), and the protective cover assembly (4) is provided in the conductive member (3). A first heat dissipation duct (41) is provided in the protective cover assembly (4), and a second heat dissipation duct (11) is provided in the cabinet (1). The first heat dissipation duct (41) communicates with the second heat dissipation duct (11) of the at least one cabinet (1) and dissipates heat of the conductive member (3). The heat of the conductive member (3) is dissipated by utilizing a heat dissipation air flow in the second heat dissipation duct (11) in the cabinet (1), thereby reducing a fan and an assembly and reducing heat dissipation cost of the conductive member.SELECTED DRAWING: Figure 3

Description

Technical Field

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[0007] , ,

[0001] The present disclosure relates to the technical field of power systems, and more specifically, to cabinet assemblies and solar power plants.

Background Art

[0002] In the power system of a power plant, cabinets such as photovoltaic grid-connected inverters are connected to other devices (for example, transformers) via conductive members.

[0003] In the operating process of the cabinet, heat is generated in the conductive member. In order to ensure the normal operation of the cabinet and the conductive member, natural cooling or forced air cooling can be adopted to dissipate heat from the conductive member.

[0004] In order to improve the heat dissipation effect, usually, the forced air cooling method is adopted to dissipate heat from the conductive member. The forced air cooling method requires a fan, and the fan itself and the structural members of the fan assembly lead to an increase in cost.

[0005] As described above, how to dissipate heat from the conductive member so as to reduce the heat dissipation cost of the conductive member is an urgent problem that those skilled in the art must solve currently.

Summary of the Invention

Problems to be Solved by the Invention

[0006] In view of this, an object of the present disclosure is to provide a cabinet assembly and a solar power plant so as to reduce the heat dissipation cost of the conductive member.

Means for Solving the Problems

[0007] To achieve the above object, the present disclosure provides the following technical solutions.

[0008] A cabinet assembly, comprising at least one cabinet, a conductive member, and a protective cover assembly, The conductive member is electrically connectable to the cabinet output member of the cabinet, and the conductive member is provided on the protective cover assembly. The protective cover assembly is provided with a first heat dissipation duct, and the cabinet is provided with a second heat dissipation duct, and the first heat dissipation duct communicates with the second heat dissipation duct of at least one of the cabinets to dissipate heat from the conductive member.

[0009] Preferably, the second air intake port of the second heat dissipation duct is connected to the external environment, the second exhaust port of the second heat dissipation duct is connected to the first air intake port of the first heat dissipation duct, and the first exhaust port of the first heat dissipation duct is connected to the external environment.

[0010] Preferably, the second heat dissipation duct and the first heat dissipation duct are connected in series.

[0011] Preferably, the protective cover assembly is located at the bottom of the cabinet, the second exhaust port is located at the bottom of the cabinet, and the first air intake port is located at the top of the protective cover assembly.

[0012] Preferably, the protective cover assembly is located on the side of the cabinet, the second exhaust port is located on the side of the cabinet closer to the protective cover assembly, and the first air intake port is located on the side of the protective cover assembly closer to the cabinet.

[0013] Preferably, the first exhaust port is located on the bottom or side of the protective cover assembly.

[0014] Preferably, the protective cover assembly is located at the bottom of the cabinet, the second exhaust port is located at the bottom of the cabinet, the first air intake port is located at the top of the protective cover assembly, and the first exhaust port is located on the bottom or side of the protective cover assembly.

[0015] Preferably, the protective cover assembly is located on the side of the cabinet, the second exhaust port is located on the side of the cabinet closer to the protective cover assembly, the first air intake port is located on the side of the protective cover assembly closer to the cabinet, and the first exhaust port is located on the bottom or side of the protective cover assembly.

[0016] Preferably, the first air intake protrudes from the protective cover assembly, and the cabinet is provided with a first recess, the first recess accommodating the first air intake.

[0017] Preferably, the first air intake is at least one, and the second heat dissipation duct corresponds to at least one of the first air intakes. and / or, The first exhaust port is at least one, and the second heat dissipation duct corresponds to at least one of the first exhaust ports.

[0018] Preferably, the cabinet consists of at least two units, the second heat dissipation duct consists of at least two units, and the at least two second heat dissipation ducts correspond to the same first exhaust port.

[0019] Preferably, the cabinets consist of at least two and are arranged sequentially along a first direction perpendicular to the vertical direction.

[0020] Preferably, the cabinet and the protective cover assembly are sealed together at the point where the second heat dissipation duct and the first heat dissipation duct communicate.

[0021] Preferably, the cabinet is provided with a connection chamber, the connection chamber and the second heat dissipation duct are relatively separated, and the cabinet output member is provided in the connection chamber. The cabinet assembly further includes a duct separator, the duct separator separating the connection chamber from the first heat dissipation duct, and the duct separator has a mounting hole through which the conductive member or the cabinet output member passes.

[0022] Preferably, the duct separator and the protective cover assembly are hermetically connected to separate the connection chamber and the first heat dissipation duct.

[0023] Preferably, the protective cover assembly is provided with a mounting port through which the conductive member or the cabinet output member passes, and the duct separator closes the mounting port. The mounting port and the communication port in the first heat dissipation duct communicating with the second heat dissipation duct are sequentially arranged along a first direction perpendicular to the vertical direction. And / or The mounting port protrudes from the protective cover assembly, and the cabinet is provided with a second recess for accommodating the mounting port.

[0024] Preferably, the first heat dissipation duct has a first exhaust port communicating with the external environment, and the cabinet assembly further includes a protective net provided at the first exhaust port.

[0025] Preferably, the protective net and the protective cover assembly are detachably inserted.

[0026] Preferably, the protective cover assembly is provided with guide rails, and the protective net and the guide rails are slidably fitted. And / or The protective net is provided with an insertable and removable insertion position limiting member, the insertion direction of the insertion position limiting member is perpendicular to the insertion direction of the protective net, the protective cover assembly is provided with a position limiting hole, and the insertion position limiting member is used to engage with the position limiting hole to limit the position of the protective net. And / or The protective net is detachably connected to the protective cover assembly via a fastening member.

[0027] Preferably, the cabinet assembly further includes a detector for detecting whether dust removal from the protective net is required.

[0028] Preferably, the detector is provided within the conductive member, and the detector is used to detect whether the temperature inside the conductive member exceeds a set value, and to determine whether dust removal from the protective net is necessary. and / or, The cabinet assembly further includes an alarm signal-connected to the detector.

[0029] Based on the cabinet assembly provided above, the Disclosure further provides a solar power plant comprising a voltage converter and the cabinet assembly described in any one of the above paragraphs, wherein the conductive member is electrically connected to the input terminal of the voltage converter.

[0030] In the cabinet assembly provided by this disclosure, a conductive member is electrically connectable to a cabinet output member of the cabinet, the conductive member is provided in a protective cover assembly, the protective cover assembly is provided with a first heat dissipation duct, the cabinet is provided with a second heat dissipation duct, and the first heat dissipation duct communicates with the second heat dissipation duct of at least one cabinet. In this way, the cabinet assembly can utilize the heat dissipation airflow in the second heat dissipation duct in the cabinet to allow air to flow through the conductive member in the first heat dissipation duct, thereby enabling heat dissipation of the conductive member using the heat dissipation airflow in the second heat dissipation duct in the cabinet, that is, it enables the coupling of heat dissipation of the conductive member and heat dissipation of the cabinet, eliminating the need to provide a separate fan to dissipate heat from the conductive member, thereby saving the cost of the fan itself and the cost required to assemble the fan, and effectively reducing the cost of heat dissipation of the conductive member.

[0031] Furthermore, in the cabinet assembly provided by this disclosure, forced air cooling is performed on the conductive member using the forced air cooling heat dissipation of the cabinet. Compared to natural cooling of the conductive member, this effectively improves the heat dissipation effect of the conductive member, thereby reducing the cross-sectional area of ​​the conductive member and significantly reducing the cost of the conductive member.

[0032] Furthermore, in the cabinet assembly provided by this disclosure, heat is dissipated from the conductive member by utilizing the heat dissipation airflow in the second heat dissipation duct in the cabinet. If the cabinet fails, the cabinet will cease to operate, and the conductive member will no longer generate heat. In this way, the conductive member does not need to dissipate heat, thus avoiding failures caused by the conductive member's inability to effectively dissipate heat and improving reliability.

[0033] Furthermore, in the cabinet assembly provided by this disclosure, in a situation where the second heat dissipation ducts of at least two cabinets are both connected to the first heat dissipation duct, if some cabinets (e.g., one cabinet) fail and do not operate, while the other cabinets continue to operate, the heat dissipation airflow from the still operating cabinets can flow through the first heat dissipation duct and dissipate heat from the conductive members. This avoids the problem in the prior art where conductive members cannot dissipate heat if the fans that individually dissipate heat from conductive members do not operate, thereby improving the reliability of heat dissipation for conductive members.

[0034] To more clearly illustrate the embodiments of this disclosure or the technical proposals in the prior art, the following briefly introduces the drawings necessary for describing the embodiments or the prior art, and obviously the drawings in the following description are embodiments of this disclosure, and a person skilled in the art may obtain other drawings in accordance with the provided drawings, provided that they do not perform work commensurate with inventive step. [Brief explanation of the drawing]

[0035] [Figure 1] Schematic diagram of the structure of a cabinet assembly provided by an embodiment of this disclosure. [Figure 2]Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 3] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 4] Heat dissipation state of the cabinet assembly shown in Figure 3 [Figure 5] Another heat dissipation state of the cabinet assembly shown in Figure 3 [Figure 6] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 7] Plan view of the structure shown in Figure 6 [Figure 8] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 9] Plan view of the structure shown in Figure 8 [Figure 10] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 11] Side view of the structure shown in Figure 10 [Figure 12] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 13] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 14] Plan view of the structure shown in Figure 13 [Figure 15] Another schematic diagram of the cabinet assembly provided by the embodiments of this disclosure. [Figure 16] Plan view of the structure of a cabinet assembly provided by an embodiment of the present disclosure [Figure 17] Cross-sectional view in the AA direction of Figure 16 [Figure 18] Enlarged schematic diagram of section B in Figure 17 [Figure 19] Enlarged schematic diagram of section C in Figure 17 [Figure 20] Perspective view of a cabinet assembly provided by an embodiment of the present disclosure [Figure 21] Enlarged schematic diagram of section D in Figure 20 [Figure 22] Perspective view of a cabinet in a cabinet assembly provided by an embodiment of this disclosure [Figure 23] Front view of a cabinet in a cabinet assembly provided by an embodiment of this disclosure. [Figure 24] Cross-sectional view in the EE direction, Figure 23. [Figure 25] Assembly diagram of protective cover assembly and conductive member in a cabinet assembly provided by an embodiment of the present disclosure. [Figure 26] Assembly diagram of protective cover assembly and protective net in a cabinet assembly provided by an embodiment of this disclosure. [Figure 27] Perspective view of a protective net in a cabinet assembly provided by an embodiment of this disclosure. [Figure 28] Schematic diagram of a partial structure of a solar power plant provided by the embodiments of this disclosure. [Modes for carrying out the invention]

[0036] The following describes the technical concepts in the embodiments of this disclosure clearly and completely, by combining the drawings of the embodiments of this disclosure. Clearly, the embodiments described are only a selection, not all, of the embodiments of this disclosure. All other embodiments that can be obtained by a person skilled in the art without any creative work based on the embodiments of this disclosure are all within the scope of protection of this disclosure.

[0037] The following descriptions combine the drawings of the embodiments of this disclosure and clearly and completely describe the technical concepts of the embodiments. The terminology used in the following embodiments is for the sole purpose of describing specific embodiments and is not intended to limit this disclosure. As used in the specification of this disclosure and the appended claims, the singular forms of terms "one," "one kind," "the foregoing," "the foregoing," and "this" are also intended to include expressions such as "one or more" unless otherwise clearly specified in the context. Furthermore, it should be understood that in the embodiments of this disclosure, "one or more" refers to one, two, or more than one.

[0038] References to “one example” or “some examples” described herein mean that one or more examples of this disclosure include certain features, structures, or features described in combination with this example. Accordingly, phrases such as “in one example,” “in some examples,” “in other examples,” and “in yet another example” appearing elsewhere in this specification do not necessarily mean that they refer to the same example, unless otherwise specifically emphasized in the same way, but rather mean “one or more examples, but not all examples.” The terms “include,” “contain,” “have,” and variations thereof all mean “include, but not limited to,” unless otherwise specifically emphasized in the same way.

[0039] In the descriptions of the embodiments in this disclosure, "multiple" refers to two or more. In the descriptions of the embodiments in this disclosure, terms such as "first" and "second" are used merely to distinguish between the described purposes and should not be understood as indicating or implying relative importance, nor should they be understood as indicating or implying order.

[0040] Embodiments of this disclosure provide a cabinet assembly and a solar power plant to reduce the heat dissipation cost of conductive members.

[0041] Devices inside electrical cabinets (cabinets) such as inverters, converters, low-voltage cabinets, and distribution boxes generate heat during operation, and this heat needs to be dissipated from within the cabinet. The cabinet employs forced air cooling, meaning the cabinet draws in outside air, and the airflow cools the internal devices before being discharged from the cabinet. Based on this, this disclosure utilizes the heat dissipation airflow discharged from the cabinet to dissipate heat from conductive components in order to reduce the heat dissipation cost of the conductive components.

[0042] As shown in Figures 1 to 3, the cabinet assembly provided by the embodiments of the present disclosure includes at least one cabinet 1, a conductive member 3, and a protective cover assembly 4.

[0043] As shown in Figure 1, there is one cabinet 1; as shown in Figure 2, there are two cabinets 1; and as shown in Figure 3, there are three cabinets 1. In actual situations, there may be four, five, six or more cabinets 1, and this embodiment does not limit the number of cabinets 1.

[0044] Each cabinet 1 is provided with a second heat dissipation duct 11. The cabinet 1 may include a fan (not shown), which is used to drive air to flow through the second heat dissipation duct 11, i.e., the second heat dissipation duct 11 is used for forced air cooling. The fan may be located outside or inside the second heat dissipation duct 11, and may be located near the intake or exhaust port of the second heat dissipation duct 11. The intake port of the second heat dissipation duct 11 may be called the second intake port 14, and the exhaust port of the second heat dissipation duct 11 may be called the second exhaust port 15. At least one of the second intake port 14 and the second exhaust port 15 communicates with the external environment. The external environment refers to the environment outside the cabinet 1 and the protective cover assembly 4.

[0045] The placement, number, and type of fans should be selected according to the actual situation, and this embodiment is not limited thereto.

[0046] The second heat dissipation duct 11 is located inside the cabinet 1, and the specific structure and shape of the second heat dissipation duct 11 are selected according to the actual situation, and this embodiment is not limited thereto.

[0047] Each cabinet 1 is further provided with a cabinet output member 13, and the conductive member 3 can be electrically connected to the cabinet output member 13.

[0048] Furthermore, when the operation of cabinet 1 is required, the conductive member 3 is electrically connected to the cabinet output member 13. When the operation of cabinet 1 is not required, the conductive member 3 may also be electrically connected to the output member of another device, or the conductive member 3 may not be electrically connected to the output member of any device.

[0049] The cabinet output member 13 may be a copper bar, an aluminum bar, or a copper-aluminum composite bar, etc. The conductive member 3 may be a bus bar, for example, a copper bar, an aluminum bar, or a copper-aluminum composite bar, etc. This embodiment does not limit the specific structure of the cabinet output member 13 and the conductive member 3.

[0050] The electrical connection method between the cabinet output member 13 and the conductive member 3 may be selected according to the actual situation, and this embodiment is not limited to this method.

[0051] In a situation where there are at least two cabinets 1, the cabinet output members 13 of at least two cabinets 1 may be selected to be electrically connected to the conductive member 3, in which case the conductive member 3 enables the merging of at least two cabinets 1.

[0052] In the case where the conductive member 3 has a merging function, as shown in Figure 25, the conductive member 3 includes a connecting segment 31 and a merging segment 32. One end of the connecting segment 31 can be electrically connected to the cabinet output member 13, and the other end of the connecting segment 31 can be electrically connected to the merging segment 32. The merging segment 32 may be a single member, or it may be electrically connected sequentially by the merging portions of multiple segments.

[0053] In situations where there are at least two cabinets 1, as shown in Figures 2 and 3, the at least two cabinets 1 may be selected to be arranged sequentially along a first direction, where the first direction is the left-right direction in Figures 2 and 3, the first direction is perpendicular to the vertical direction, and the first direction may also be the direction in which the conductive members 3 merge, and the merging direction may be understood as the longitudinal direction of the merging segment 32. This makes merging and installation convenient.

[0054] The conductive member 3 is provided in the protective cover assembly 4, and the protective cover assembly 4 is provided with a first heat dissipation duct 41. At least a portion of the conductive member 3 is located inside the first heat dissipation duct 41.

[0055] The first heat dissipation duct 41 communicates with the second heat dissipation duct 11 of at least one cabinet 1 to dissipate heat from the conductive member 3. In this embodiment, when the second heat dissipation duct 11 is subjected to forced air cooling, the first heat dissipation duct 41 is also subjected to forced air cooling; that is, the fan of the cabinet 1 is used to drive air to flow through the second heat dissipation duct 11 and the first heat dissipation duct 41.

[0056] For example, there may be three cabinets 1, and the first heat dissipation duct 41 may be connected to the second heat dissipation duct 11 of one cabinet 1, the first heat dissipation duct 41 may be connected to the second heat dissipation duct 11 of two cabinets 1, or the first heat dissipation duct 41 may be connected to the second heat dissipation duct 11 of three cabinets 1.

[0057] In the cabinet assembly provided by the above embodiment, the conductive member 3 is electrically connectable to the cabinet output member 13 of the cabinet 1. The conductive member 3 is provided in the protective cover assembly 4, which is provided with a first heat dissipation duct 41. The cabinet 1 is provided with a second heat dissipation duct 11. The first heat dissipation duct 41 communicates with the second heat dissipation duct 11 of at least one cabinet 1 to dissipate heat from the conductive member 3. In this way, the cabinet assembly can utilize the heat dissipation airflow in the second heat dissipation duct 11 in the cabinet 1 to flow through the conductive member 3 in the first heat dissipation duct 41, thereby enabling heat dissipation of the conductive member 3 using the heat dissipation airflow in the second heat dissipation duct 11 in the cabinet 1. That is, it realizes the coupling of heat dissipation of the conductive member 3 and heat dissipation of the cabinet 1, eliminating the need to provide a separate fan to dissipate heat from the conductive member 3. This saves the cost of the fan itself and the cost required to assemble the fan, effectively reducing the cost of heat dissipation of the conductive member 3.

[0058] In the cabinet assembly provided by the above embodiment, the conductive member 3 is forced-air cooled using the forced-air cooling heat dissipation of the cabinet 1, thereby effectively improving the heat dissipation effect of the conductive member 3 compared to natural cooling of the conductive member 3.

[0059] The maximum current that can flow through the conductive member 3 is related to the temperature of the conductive member 3; when the temperature of the conductive member 3 is high, the maximum current that can flow through the conductive member 3 is low, and when the temperature of the conductive member 3 is low, the maximum current that can flow through the conductive member 3 is high. The maximum current that can flow through the conductive member 3 is further related to the cross-sectional area of ​​the conductive member 3; the larger the cross-sectional area of ​​the conductive member 3, the larger the maximum current that can flow through the conductive member 3, and the smaller the cross-sectional area of ​​the conductive member 3, the smaller the maximum current that can flow through the conductive member 3. As described above, the cabinet assembly improves the heat dissipation effect of the conductive member 3, reduces the temperature of the conductive member 3, thereby increasing the maximum current that can flow through the conductive member 3, reducing the cross-sectional area of ​​the conductive member 3, and thereby reducing the cost of the conductive member 3.

[0060] Simultaneously, in the cabinet assembly provided by this disclosure, the conductive member 3 is cooled by utilizing the heat dissipation airflow in the second heat dissipation duct 11 in the cabinet 1. If the cabinet 1 fails, the cabinet 1 will cease to operate, and the conductive member 3 will no longer generate heat. Thus, the conductive member 3 will not need to dissipate heat, thus avoiding failures caused by the conductive member 3's inability to effectively dissipate heat and improving reliability.

[0061] In conventional forced-air cooling systems, the conductive component is located within a single chamber, and a fan dissipates heat from the conductive component. If the fan fails and does not operate, the conductive component continues to generate heat, leading to failure because it cannot effectively dissipate heat, resulting in low reliability. Based on this, in the cabinet assembly provided by the embodiments of this disclosure, the second heat dissipation ducts 11 of at least two cabinets 1 all communicate with the first heat dissipation duct 41. In this way, if some cabinets 1 (for example, one cabinet 1) fail and do not operate, while other cabinets 1 are still operating, the heat dissipation airflow from the still operating cabinet 1 can flow through the first heat dissipation duct 41 and dissipate heat from the conductive component 3.

[0062] For example, as shown in Figure 4, there are three cabinets 1, arranged sequentially along the first direction, that is, sequentially along the left-right direction. If the middle cabinet 1 malfunctions and does not operate, the fan of that cabinet 1 will not operate, and there will be no heat dissipation airflow in the second heat dissipation duct 11. The left cabinet 1 and the right cabinet 1 will operate normally, the fans of these two cabinets 1 will also operate normally, and there will be heat dissipation airflow in the second heat dissipation duct 11 of these two cabinets 1. This heat dissipation airflow enters the first heat dissipation duct 41 and dissipates heat from the conductive member 3. As shown in Figure 5, there are three cabinets 1, arranged sequentially along the first direction, that is, sequentially along the left-right direction. If the cabinet 1 located on the left, in the middle, malfunctions and does not operate, the fan in that cabinet 1 will not operate, and there will be no heat dissipation airflow in the second heat dissipation duct 11. The cabinet 1 on the right operates normally, its fan also operates normally, and there is heat dissipation airflow in the second heat dissipation duct 11 of the cabinet 1 on the right. This heat dissipation airflow enters the first heat dissipation duct 41 and dissipates heat from the conductive member 3.

[0063] Therefore, the cabinet assembly provided by the above embodiment can avoid the problem in the prior art where the conductive member 3 cannot dissipate heat when the fan that individually dissipates heat from the conductive member 3 is not operating, thereby improving the heat dissipation reliability of the conductive member 3.

[0064] In the embodiments of this disclosure, the second heat dissipation duct 11 has a second air intake port 14 and a second exhaust port 15, both of which communicate with the external environment. The specific locations of the second air intake port 14 and the second exhaust port 15 in the cabinet 1 can be provided according to the actual situation. For example, the second air intake port 14 may be located on the top or side of the cabinet 1, and the second exhaust port 15 may be located on the bottom or side of the cabinet 1. This embodiment is not limited thereto.

[0065] In some embodiments, the second air intake port 14 and the second exhaust port 15 of the second heat dissipation duct 11 are both connected to the external environment, and the first air intake port 42 and the first exhaust port of the first heat dissipation duct 41 are both connected to the second heat dissipation duct 11.

[0066] In some other embodiments, the second air intake port 14 of the second heat dissipation duct 11 communicates with the external environment, the second exhaust port 15 of the second heat dissipation duct 11 communicates with the first air intake port 42 of the first heat dissipation duct 41, and the first exhaust port 43 of the first heat dissipation duct 41 communicates with the external environment. In such a situation, the second exhaust port 15 communicates with the external environment via the first heat dissipation duct 41.

[0067] In the above embodiment, air from the external environment enters the second heat dissipation duct 11 through the second air intake port 14, then enters the first heat dissipation duct 41 through the second exhaust port 15 and the first air intake port 42, and finally is discharged from the first exhaust port 43.

[0068] In the above embodiment, the second heat dissipation duct 11 and the first heat dissipation duct 41 are connected in series. In the direction of airflow, the second heat dissipation duct 11 is located upstream of the first heat dissipation duct 41. Of course, it is also possible to select a configuration in which a portion of the second heat dissipation duct 11 is connected in series with the first heat dissipation duct 41, and another portion of the second heat dissipation duct 11 is connected with the first heat dissipation duct 41 to form two branches.

[0069] In some embodiments, the protective cover assembly 4 may be located at the bottom of the cabinet 1, the second exhaust port 15 may be located at the bottom of the cabinet 1, and the first air intake port 42 may be located at the top of the protective cover assembly 4. This facilitates communication between the second heat dissipation duct 11 and the first heat dissipation duct 41, and also facilitates the electrical connection between the cabinet output member 13 and the conductive member 3.

[0070] In some other embodiments, the protective cover assembly 4 may be located on the side of the cabinet 1, the second exhaust port 15 may be located on the side of the cabinet 1 closer to the protective cover assembly 4, and the first air intake port 42 may be located on the side of the protective cover assembly 4 closer to the cabinet 1. This reduces the overall height of the assembly and also facilitates communication between the second heat dissipation duct 11 and the first heat dissipation duct 41.

[0071] Note that the side of cabinet 1 refers to the side of cabinet 1 other than the top and bottom ends. The one side of protective cover assembly 4 refers to the one side of protective cover assembly 4 other than the top and bottom ends.

[0072] In some embodiments, the first exhaust port 43 is located on the bottom or side of the protective cover assembly 4, thereby facilitating the discharge of airflow.

[0073] In actual situations, the relative positions of the protective cover assembly 4 and the cabinet 1, and the position of the first exhaust port 43 in the protective cover assembly 4, can be combined in any way as long as heat dissipation and electrical connections are ensured.

[0074] As shown in Figures 1 to 5, the protective cover assembly 4 is located at the bottom of the cabinet 1, the second exhaust port 15 is located at the bottom of the cabinet 1, the first air intake port 42 is located at the top of the protective cover assembly 4, and the first exhaust port 43 is located on the bottom surface of the protective cover assembly 4.

[0075] As shown in Figures 6 to 9, the protective cover assembly 4 is located at the bottom of the cabinet 1, the second exhaust port 15 is located at the bottom of the cabinet 1, the first air intake port 42 is located at the top of the protective cover assembly 4, and the first exhaust port 43 is located on the side of the protective cover assembly 4.

[0076] Figures 6 and 7 show the situation with one cabinet 1, while Figures 8 and 9 show the situation with two cabinets 1. The "×" in Figures 7 and 9 indicates that the airflow direction is perpendicular to the paper surface and facing the back.

[0077] As shown in Figures 10 to 12, the protective cover assembly 4 is located on the side of the cabinet 1, the second exhaust port 15 is located on the side of the cabinet 1 closer to the protective cover assembly 4, the first air intake port 42 is located on the side of the protective cover assembly 4 closer to the cabinet 1, and the first exhaust port 43 is located on the bottom surface of the protective cover assembly 4.

[0078] Figures 10 and 11 show a configuration with one cabinet 1, and Figure 12 shows a configuration with two cabinets 1. The side view of the structure shown in Figure 12 is the same as the structure shown in Figure 11. In Figures 10 and 12, the "·" indicates that the airflow direction is perpendicular to the plane of the paper and directed outwards.

[0079] As shown in Figures 13 to 15, the protective cover assembly 4 is located on the side of the cabinet 1, the second exhaust port 15 is located on the side of the cabinet 1 closer to the protective cover assembly 4, the first air intake port 42 is located on the side of the protective cover assembly 4 closer to the cabinet 1, and the first exhaust port 43 is located on the side of the protective cover assembly 4. Note that the first exhaust port 43 is located on the side of the protective cover assembly 4 that is away from the cabinet 1.

[0080] Figures 13 and 14 show a situation with one cabinet 1, while Figure 15 shows a situation with two cabinets 1. In Figure 14, "×" indicates that the airflow direction is perpendicular to the paper and facing the back. In Figure 15, "·" indicates that the airflow direction is perpendicular to the paper and facing outwards.

[0081] In the embodiments of this disclosure, the first air intake port 42 of the first heat dissipation duct 41 and the second exhaust port 15 of the second heat dissipation duct 11 are butted together and in communication. In Figures 1 to 15, the dotted line indicated by the symbol "42(15)" points to both the first air intake port 42 and the second exhaust port 15.

[0082] In the embodiments of this disclosure, the specific location of the second air intake port 14 of the second heat dissipation duct 11 is selected according to the actual circumstances, and this embodiment is not limited thereto.

[0083] To facilitate communication between the first air intake 42 and the second exhaust 15, the first air intake 42 protrudes from the protective cover assembly 4, and the cabinet 1 is provided with a first recess, which may be selected to accommodate the first air intake 42. In this way, the first recess and the protruding first air intake 42 restrict each other's positions, thereby simplifying the installation of the protective cover assembly 4 and the cabinet 1, and also facilitating communication between the first air intake 42 and the second exhaust 15.

[0084] In actual situations, the cabinet assembly may be selected so as not to have the above positional restrictions, and is not limited to the above embodiment.

[0085] In embodiments of the present disclosure, the cabinet 1 has at least one second heat dissipation duct 11. The first heat dissipation duct 41 has at least one first air inlet 42, and the second heat dissipation duct 11 corresponds to at least one first air inlet 42. To simplify the structure, the second heat dissipation duct 11 may be selected to have a one-to-one correspondence with the first air inlet 42. In this scenario, the cabinet 1 may have one second heat dissipation duct 11, and any two first air inlets 42 may be selected to be arranged sequentially along the orientation of any two cabinets 1. Of course, the first heat dissipation duct 41 may have only one first air inlet 42, and all second heat dissipation ducts 11 may be selected to communicate with the same first air inlet 42.

[0086] In embodiments of this disclosure, the first heat dissipation duct 41 has at least one first exhaust port 43. To improve the efficiency of airflow discharge to the external environment in order to enhance the heat dissipation effect, the second heat dissipation duct 11 may be selected to correspond to at least one first exhaust port 43. To simplify the structure, the second heat dissipation duct 11 may be selected to correspond one-to-one with the first exhaust port 43. In this situation, the cabinet 1 may have one second heat dissipation duct 11, and any two first exhaust ports 43 may be selected to be arranged sequentially along the orientation of any two cabinets 1.

[0087] In a situation where there are at least two cabinets 1, there are at least two second heat dissipation ducts 11, and furthermore, at least two second heat dissipation ducts 11 may be selected to correspond to the same first exhaust port 43. Based on this, the first heat dissipation duct 41 may be selected to have only one first exhaust port 43, so that all airflow is discharged to the external environment through only one first exhaust port 43.

[0088] In the embodiments of this disclosure, in order to improve the heat dissipation effect of the conductive member 3, the cabinet 1 and the protective cover assembly 4 may be selected to be sealed at the point where the second heat dissipation duct 11 and the first heat dissipation duct 41 communicate. In this way, the situation in which air enters is avoided, thereby improving the heat dissipation effect of the conductive member 3. The sealing structure between the cabinet 1 and the protective cover assembly 4 may be selected according to the actual situation, and the embodiment is not limited to sealing members such as sealant, weatherstrip, or sealing ring.

[0089] Illustratively, as shown in Figures 16 to 18, a first sealing member 7 is provided at the first air intake port 42 of the protective cover assembly 4, and the protective cover assembly 4 and the cabinet 1 are sealed together via the first sealing member 7. That is, the protective cover assembly 4 and the cabinet 1 are sealed together via the first sealing member 7 at the point where the second heat dissipation duct 11 and the first heat dissipation duct 41 communicate. Illustratively, the first sealing member 7 is a weatherstrip, and the protective cover assembly 4 and the cabinet 1 are compressed and sealed by the weatherstrip.

[0090] In the embodiments of this disclosure, the cabinet output member 13 may be located inside or outside the second heat dissipation duct 11. Accordingly, the electrical connection point between the cabinet output member 13 and the conductive member 3 may be located inside or outside the heat dissipation duct (first heat dissipation duct 41 or second heat dissipation duct 11).

[0091] In the embodiments of this disclosure, as shown in Figures 16 and 17, the cabinet 1 and protective cover assembly 4 may be selected to be integrated into the integrated platform 6 in order to improve the degree of integration. Of course, the cabinet 1 and protective cover assembly 4 may be selected to be provided on different platforms, and the invention is not limited to the above configuration.

[0092] To improve the reliability and guard performance of the electrical connection, and to avoid the heat dissipation airflow affecting the electrical connection, the cabinet output member 13 may be selected to be located outside the second heat dissipation duct 11. As shown in Figures 16 to 24, in some embodiments, the cabinet 1 is provided with a connection chamber 12, the connection chamber 12 and the second heat dissipation duct 11 are relatively separated, and the cabinet output member 13 is located in the connection chamber 12.

[0093] As shown in Figures 19 and 21, the cabinet assembly further includes a duct separator 2, which separates the connection chamber 12 from the first heat dissipation duct 41. In this way, heat dissipation airflow is prevented from entering the connection chamber 12.

[0094] The duct separator 2 may be understood as part of the cabinet 1, in which case the duct separator 2 and the protective cover assembly 4 are sealed together to ensure that the duct separator 2 separates the connection chamber 12 from the first heat dissipation duct 41. In some embodiments, the protective cover assembly 4 is provided with a second sealing member 8, and the duct separator 2 and the protective cover assembly 4 are sealed together via the second sealing member 8. Exemplarily, the second sealing member 8 is a weatherstrip, and the protective cover assembly 4 and the duct separator 2 are compressed and sealed by the weatherstrip.

[0095] In some other embodiments, the duct separator 2 and the protective cover assembly 4 may be selected to be sealed together in a different manner, and are not limited to the embodiments described above.

[0096] The duct separator 2 may also be understood as part of the protective cover assembly 4, in which case the duct separator 2 and the cabinet 1 are sealed together to ensure that the duct separator 2 separates the connection chamber 12 from the first heat dissipation duct 41. The sealing structure between the duct separator 2 and the cabinet can be selected according to the actual situation, and this embodiment is not limited thereto.

[0097] The duct separator 2 has a mounting hole through which the conductive member 3 passes; that is, the connection chamber 12 has a connection port 16 through which the conductive member 3 passes. In this way, the cabinet output member 13 and the conductive member 3 are electrically connected within the connection chamber 12. Of course, the duct separator 2 may be selected to have a mounting hole through which the cabinet output member 13 passes; that is, the connection chamber 12 has a connection port 16 through which the cabinet output member 13 passes. In this way, the cabinet output member 13 and the conductive member 3 are electrically connected within the first heat dissipation duct 41.

[0098] In the embodiments of this disclosure, the protective cover assembly 4 is provided with a mounting opening 44. When the duct separator 2 has a mounting hole through which the conductive member 3 passes, the mounting opening 44 is through which the conductive member 3 passes. When the duct separator 2 has a mounting hole through which the cabinet output member 13 passes, the mounting opening 44 is through which the cabinet output member 13 passes. The duct separator 2 closes the mounting opening 44.

[0099] As shown in Figure 25, the mounting port 44 and the communication port (first air supply port 42) of the first heat dissipation duct 41 that communicates with the second heat dissipation duct 11 are arranged sequentially along a first direction perpendicular to the vertical direction. In a situation where there are at least two cabinets 1, the first direction is the direction in which any two cabinets 1 are arranged sequentially.

[0100] The mounting opening 44 protrudes from the protective cover assembly 4, and the cabinet 1 is provided with a second recess, which accommodates the mounting opening 44. In this way, the second recess and the mounting opening 44 are mutually restricted in their positions, making it convenient to install the cabinet 1 and the protective cover assembly 4.

[0101] In the case where the cabinet 1 is provided with a first recess, as shown in Figure 23, the first recess and the second recess may be selected to be the same recess 17. Of course, the first recess and the second recess may also be selected to be different recesses.

[0102] In embodiments of this disclosure, when the first heat dissipation duct 41 has a first exhaust port 43 that communicates with the external environment, the cabinet assembly further includes a protective net 5 provided at the first exhaust port 43, as shown in Figures 17 and 26, thereby preventing foreign matter from entering the first heat dissipation duct 41 from the first exhaust port 43 and improving the overall guard performance of the cabinet assembly.

[0103] After using the protective net 5 for a certain period, a large amount of foreign matter such as dust accumulates on the protective net 5, and therefore, it is necessary to clean the protective net 5 periodically. To facilitate the cleaning and replacement of the protective net 5, the protective net 5 and the protective cover assembly 4 are detachably connected. The specific method for detachably fixing the connection should be selected according to the actual situation, and this embodiment is not limited to methods such as fastening members or engaging connection structures that enable detachably fixing the connection.

[0104] To facilitate maintenance of the protective net 5, the protective net 5 and the protective cover assembly 4 may be selected to be detachably attached.

[0105] The protective cover assembly 4 is provided with a guide rail 45, and the protective net 5 and the guide rail 45 slide-fit together. This makes it convenient to install the protective net 5. The sliding fit direction between the guide rail 45 and the protective net 5 is the same as the insertion direction of the protective net 5.

[0106] To improve the stability of the protective net 5, the protective net 5 is provided with an insertable / removable insertion / removal position limiting member 55, the insertion / removal direction of the insertion / removal position limiting member 55 is perpendicular to the insertion direction of the protective net 5, the protective cover assembly 4 is provided with a position limiting hole, and the insertion / removable position limiting member 55 is used to limit the position of the protective net 5 by engaging with the position limiting hole in a position limiting manner. In this way, a position limiting fit between the protective net 5 and the protective cover assembly 4 is achieved, and this position limiting fit is removable.

[0107] The insertion / removal position limiting member 55 may be positioned around the protective net 5, or it may be positioned at the outer end of the protective net 5 in the insertion direction.

[0108] The insertion / removal position limiting member 55 may be a spring pin or another structure, and this embodiment is not limited thereto.

[0109] The protective net 5 described above does not require screw installation, contributing to easier maintenance, improving maintenance efficiency, and reducing the need for tools.

[0110] In actual situations, the protective net 5 may be selected to be detachably connected to the protective cover assembly 4 via a fastening member. The insertion / removal position limiting member 55 and the fastening member can then be used in combination.

[0111] As shown in Figure 27, in some embodiments, the protective net 5 includes a protective net body 51 and a protective net frame 52 provided around the protective net body 51. The protective net frame 52 and the protective cover assembly 4 are detachably connected.

[0112] To facilitate the fixed connection between the protective net frame 52 and the protective cover assembly 4, the protective net frame 52 is provided with a connecting plate 53, and the connecting plate 53 and the protective cover assembly 4 are detachably connected.

[0113] The connecting plate 53 may be perpendicular to the protective net frame 52, parallel to the protective net frame 52, or inclined relative to the protective net frame 52. To fix the protective net 5, the connecting plate 53 may be perpendicular to the protective net frame 52 and may be selected to be detachably connected to the protective cover assembly 4 via a fastening member.

[0114] The connecting plate 53 is provided with a connecting hole 54 through which the fastening member passes, and the protective cover assembly 4 is provided with a fixing hole for fixing the fastening member.

[0115] In situations where the protective net 5 and the protective cover assembly 4 engage in a position-restricting manner, the insertion / removal position restricting member 55 may be provided on the protective net frame 52.

[0116] For example, the first exhaust port 43 is located on the bottom surface of the protective cover assembly 4, the insertion direction of the protective net 5 is horizontal, the sliding engagement direction between the guide rail 45 and the protective net 5 is perpendicular to the vertical direction, and the protective net frame 52 and the protective cover assembly 4 engage to restrict their position in the vertical direction, or the first exhaust port 43 is located on the side surface of the protective cover assembly 4, the insertion direction of the protective net 5 is vertical, the guide rail 45 and the protective net 5 slide-fit in the vertical direction, and the position-restricting engagement direction between the protective net frame 52 and the protective cover assembly 4 is perpendicular to the vertical direction.

[0117] In some embodiments, the cabinet assembly further includes a detector for detecting whether dust removal from the protective net 5 is required.

[0118] The above-mentioned detector may be a temperature detector, which is used to detect whether the temperature of the conductive member 3 exceeds a set value (first set value) and to determine whether dust removal from the protective net 5 is necessary. In this situation, the detector is provided on the conductive member 3. In situations where the conductive member 3 includes a connecting segment 31 and a merging segment 32, the detector is provided on the merging segment 32. Of course, the detector may be selected to be provided in the portion of the connecting segment 31 located within the first heat dissipation duct 41.

[0119] Furthermore, if the temperature of the conductive member 3 is detected to exceed the first set value, it is detected that dust removal from the protective net 5 is necessary. If the temperature of the conductive member 3 is detected not to exceed the first set value, it is detected that dust removal from the protective net 5 is not necessary.

[0120] The above detector may also be a flow detector, which is used to detect whether the flow rate at the first exhaust port 43 is less than a second set value, and to determine whether dust removal from the protective net 5 is necessary. The detector is located inside or outside the first heat dissipation duct 41.

[0121] Furthermore, if the flow rate at the first exhaust port 43 is detected to be less than the second set value, it is detected that dust removal from the protective net 5 is necessary. If the flow rate at the first exhaust port 43 is detected to be equal to or greater than the second set value, it is detected that dust removal from the protective net 5 is not necessary.

[0122] The above detector may be a pressure detector, and the pressure sensor is used to detect whether the pressure at the first exhaust port 43 exceeds a third set value and to determine whether dust removal from the protective net 5 is necessary. The detector is located inside or outside the first heat dissipation duct 41. If it is detected that the pressure at the first exhaust port 43 exceeds the third set value, it is detected that dust removal from the protective net 5 is necessary, and if it is detected that the pressure at the first exhaust port 43 does not exceed the third set value, it is detected that dust removal from the protective net 5 is not necessary.

[0123] To facilitate prompting the user to clean the protective net 5, the cabinet assembly further includes an alarm signal-connected to the detector. The alarm sounds when the detector detects that dust removal from the protective net 5 is necessary. The alarm may be an audible alarm, a light alarm, or another type of alarm.

[0124] Based on the cabinet assembly provided in the above embodiment, an embodiment of the present disclosure further provides a solar power plant, as shown in Figure 28, which includes a voltage converter 9 and a cabinet assembly as described in the above embodiment, wherein the conductive member 3 is electrically connected to the input terminal of the voltage converter 9.

[0125] The cabinet may be an inverter, and the voltage converter 9 may be a medium voltage converter, such as a transformer.

[0126] Since the cabinet assembly provided by the above embodiment has the above technical effects, and the solar power plant includes the above cabinet assembly, the solar power plant also has corresponding technical effects, which are not further discussed in this specification.

[0127] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein will be implemented in other embodiments without departing from the spirit or scope of the disclosure. Accordingly, the disclosure is not limited to the embodiments shown herein and will conform to the broadest scope that is consistent with the principles and novel features disclosed herein. [Explanation of Symbols]

[0128] 1 ... Cabinet 11 ···Second heat dissipation duct 12 ···Connection Room 13. Cabinet output components 14...Second air supply port 15 ···2nd exhaust port 16...Connection port 17 ···Recess 2. Duct separator 3. Conductive components 31 ···Connection Segment 32 ···Merging Segment 4. Protective cover assembly 41 ···First heat dissipation duct 42...1st air supply port 43 ···First exhaust port 44 ···Mounting opening 45 ··· Guide rail 5 ···Protective net 51 ···Protective net body 52 ···Protective net frame 53 ···Connecting plate 54 ···Connection holes 55... Insertion / removal position limiting member 6 ···Integrated Platform 7 ···First sealing member 8 ···Second sealing member 9. Voltage converters

Claims

1. It includes at least one cabinet (1), a conductive member (3), and a protective cover assembly (4), The conductive member (3) is electrically connectable to the cabinet output member (13) of the cabinet (1), and the conductive member (3) is provided on the protective cover assembly (4), The protective cover assembly (4) is provided with a first heat dissipation duct (41), and the cabinet (1) is provided with a second heat dissipation duct (11), and the first heat dissipation duct (41) communicates with the second heat dissipation duct (11) of at least one of the cabinets (1) to dissipate heat from the conductive member (3). The second air intake port (14) of the second heat dissipation duct (11) is in communication with the external environment, the second exhaust port (15) of the second heat dissipation duct (11) is in communication with the first air intake port (42) of the first heat dissipation duct (41), and the first exhaust port (43) of the first heat dissipation duct (41) is in communication with the external environment. The first air intake port (42) protrudes from the protective cover assembly (4), and the cabinet (1) is provided with a first recess, the first recess which accommodates the first air intake port (42). A cabinet assembly characterized by the following features.

2. The second heat dissipation duct (11) and the first heat dissipation duct (41) are connected in series. The cabinet assembly according to feature 1.

3. The protective cover assembly (4) is located at the bottom of the cabinet (1), the second exhaust port (15) is located at the bottom of the cabinet (1), and the first air intake port (42) is located at the top of the protective cover assembly (4). The cabinet assembly according to feature 1.

4. The protective cover assembly (4) is located on the side of the cabinet (1), the second exhaust port (15) is located on the side of the cabinet (1) closer to the protective cover assembly (4), and the first air intake port (42) is located on the side of the protective cover assembly (4) closer to the cabinet (1). The cabinet assembly according to feature 1.

5. The first exhaust port (43) is located on the bottom or side of the protective cover assembly (4). The cabinet assembly according to feature 1.

6. The protective cover assembly (4) is located at the bottom of the cabinet (1), the second exhaust port (15) is located at the bottom of the cabinet (1), the first air intake port (42) is located at the top of the protective cover assembly (4), and the first exhaust port (43) is located on the bottom or side of the protective cover assembly (4). The cabinet assembly according to feature 1.

7. The protective cover assembly (4) is located on the side of the cabinet (1), the second exhaust port (15) is located on the side of the cabinet (1) closer to the protective cover assembly (4), the first air intake port (42) is located on the side of the protective cover assembly (4) closer to the cabinet (1), and the first exhaust port (43) is located on the bottom or side of the protective cover assembly (4). The cabinet assembly according to feature 1.

8. The first air intake port (42) is at least one, and the second heat dissipation duct (11) corresponds to at least one of the first air intake ports (42). and / or, The first exhaust port (43) is at least one, and the second heat dissipation duct (11) corresponds to at least one of the first exhaust ports (43). The cabinet assembly according to feature 1.

9. The cabinet (1) comprises at least two units, and the second heat dissipation duct (11) comprises at least two units, and at least two of the second heat dissipation ducts (11) correspond to the same first exhaust port (43). The cabinet assembly according to feature 1.

10. The cabinet (1) consists of at least two units, which are arranged sequentially along a first direction perpendicular to the vertical direction. The cabinet assembly according to feature 1.

11. The cabinet (1) and the protective cover assembly (4) are sealed and connected at the point where the second heat dissipation duct (11) and the first heat dissipation duct (41) communicate. The cabinet assembly according to feature 1.

12. The cabinet (1) is provided with a connection chamber (12), the connection chamber (12) and the second heat dissipation duct (11) are relatively separated, and the cabinet output member (13) is provided in the connection chamber (12), The cabinet assembly further includes a duct separator (2), the duct separator (2) separating the connection chamber (12) from the first heat dissipation duct (41), and the duct separator (2) having a mounting hole through which the conductive member (3) or the cabinet output member (13) passes. The cabinet assembly according to feature 1.

13. The duct separator (2) and the protective cover assembly (4) are sealed together to separate the connection chamber (12) from the first heat dissipation duct (41). The cabinet assembly according to claim 12, characterized in that it is a cabinet assembly.

14. The protective cover assembly (4) is provided with a mounting opening (44), through which the conductive member (3) or the cabinet output member (13) passes, and the duct separator (2) closes the mounting opening (44). The mounting opening (44) and the communication opening in the first heat dissipation duct (41) that communicates with the second heat dissipation duct (11) are arranged sequentially along a first direction perpendicular to the vertical direction. and / or, The mounting opening (44) protrudes from the protective cover assembly (4), and the cabinet (1) is provided with a second recess, the second recess which accommodates the mounting opening (44). The cabinet assembly according to claim 12, characterized in that it is a cabinet assembly.

15. The first heat dissipation duct (41) has a first exhaust port (43) that communicates with the external environment, and the cabinet assembly further includes a protective net (5) provided in the first exhaust port (43). The cabinet assembly according to any one of claims 1 to 14.

16. The protective net (5) and the protective cover assembly (4) are detachably inserted into each other. The cabinet assembly according to claim 15, characterized in that it is a cabinet assembly.

17. The protective cover assembly (4) is provided with a guide rail (45), and the protective net (5) and the guide rail (45) are slidably fitted together. and / or, The protective net (5) is provided with an insertable and removeable insertion / removal position limiting member (55), the insertion / removal direction of the insertion / removal position limiting member (55) is perpendicular to the insertion direction of the protective net (5), the protective cover assembly (4) is provided with a position limiting hole, and the insertion / removal position limiting member (55) is used to limit the position of the protective net (5) by engaging with the position limiting hole in a position limiting manner. and / or, The protective net (5) is detachably connected to the protective cover assembly (4) via a fastening member. The cabinet assembly according to feature 16.

18. The detector further includes a detector for detecting whether or not dust removal is necessary for the protective net (5). The cabinet assembly according to claim 15, characterized in that it is a cabinet assembly.

19. The detector is provided on the conductive member (3), and is used to detect whether the temperature inside the conductive member (3) exceeds a set value, and to determine whether dust removal from the protective net (5) is necessary. and / or, The cabinet assembly further includes an alarm signaled to the detector. The cabinet assembly according to feature 18.

20. The present invention comprises a voltage converter (9) and a cabinet assembly according to any one of claims 1 to 14, wherein the conductive member (3) is electrically connected to the input terminal of the voltage converter (9). A solar power plant characterized by the following features.

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