A capacitor module, capacitor mounting structure and electrical cabinet

Abstract

This utility model provides a capacitor module, a capacitor mounting structure, and an electrical cabinet, belonging to the technical field of electrical cabinets. The capacitor module includes a mounting bracket, multiple capacitors, and a terminal block. The multiple capacitors are placed on the mounting bracket, and each capacitor has a terminal block on its top. The terminal block is mounted on the mounting bracket and is positioned away from the multiple capacitors. Each terminal block is electrically connected to the terminal block via a cable. This utility model's terminal block connects to the terminal blocks of each capacitor via cables, eliminating the need for strict matching of terminal block spacing and reducing the risk of misalignment. The terminal block's placement on the mounting bracket and away from the multiple capacitors ensures ease of installation while minimizing the space occupied above the capacitors, thus facilitating optimized space layout within the electrical cabinet. When capacitor maintenance or replacement is required, the cable connection method makes disassembly and reconnection easier, reducing maintenance costs.

Description

Technical Field

[0001] This utility model belongs to the field of electrical cabinet technology, specifically relating to a capacitor module, a capacitor mounting structure, and an electrical cabinet. Background Technology

[0002] Capacitors in electrical cabinets are key components for ensuring stable circuit operation and optimizing electrical performance, serving functions such as energy storage, filtering, compensation, and coupling. In some high-power or demanding power supply cabinet equipment, a single capacitor cannot provide sufficient capacitance or voltage rating. By connecting multiple capacitors in series and parallel, the total capacitance can be increased to meet the equipment's energy storage requirements, improve the voltage rating, and ensure safe and stable operation of the capacitors under operating voltage.

[0003] In existing technologies, multiple capacitors are typically connected using a busbar. Specifically, the busbar is stacked on top of multiple capacitors, and multiple mounting holes are provided on the busbar. The leads of each capacitor pass through the corresponding mounting holes and are secured with bolts. Since the positions of the mounting holes must perfectly match the spacing and diameter of the capacitor leads, otherwise misalignment may occur. Even minor errors in the arrangement of multiple capacitors can directly affect the busbar assembly, leading to high installation costs and difficult maintenance. Furthermore, the busbar is costly to use, as it covers the top of multiple capacitors and occupies a large amount of space. Utility Model Content

[0004] This utility model provides a capacitor module, a capacitor mounting structure, and an electrical cabinet, aiming to solve the technical problems of high installation cost, difficult maintenance, and large space occupation of multiple capacitor electrical connections in the prior art.

[0005] The direct connection of capacitors to busbars at the top of electrical cabinets presents technical problems such as high installation costs, difficult maintenance, easy damage to capacitors due to stress, and poor heat dissipation.

[0006] In a first aspect, embodiments of the present invention provide a capacitor module, comprising: Mounting bracket; Multiple capacitors are placed on the mounting bracket, and each capacitor has a terminal block on its top; and A terminal block is mounted on the mounting bracket and is positioned away from the plurality of capacitors; Each of the aforementioned terminals is electrically connected to the terminal block via a cable.

[0007] Compared with the prior art, the solution shown in this application provides a fixed installation position for multiple capacitors, making the installation of capacitors more standardized and orderly; the terminal block is electrically connected to the terminals of each capacitor through cables, without the need to strictly match the spacing of the terminals. Even if there is a certain error in the arrangement of multiple capacitors, normal electrical connection can be achieved by adjusting the cables, reducing the risk of connection misalignment. The terminal block is mounted on the mounting bracket and is away from multiple capacitors, which ensures installation and reduces the space occupied above the capacitors. This is conducive to optimizing the layout of the electrical cabinet and improving space utilization. When capacitors need maintenance or replacement, the cable connection method makes it easier to disassemble and reconnect, reducing maintenance costs.

[0008] In conjunction with the first aspect, in one possible implementation, the terminal block is located radially peripheral to the plurality of said capacitors, and the top of the mounting bracket does not protrude from the respective terminal blocks.

[0009] In conjunction with the first aspect, in one possible implementation, the plurality of said capacitors are arranged in a multi-row, multi-column array on the mounting bracket, and the terminal block extends along the row direction of the plurality of said capacitors or extends along the column direction of the plurality of said capacitors.

[0010] In conjunction with the first aspect, in one possible implementation, the plurality of capacitors are divided into at least two groups of capacitors, and the plurality of capacitors in each group are arranged in a triangular array structure. The column with the fewest capacitors in the column direction is defined as the top of the triangular array structure, and the tops of adjacent groups of capacitors are opposite to each other.

[0011] In conjunction with the first aspect, in one possible implementation, the height of at least one group of said capacitors is different from the height of the other groups of said capacitors.

[0012] In conjunction with the first aspect, in one possible implementation, the mounting bracket includes: Base; Side plate, fixed to one side of the base, and located on the radial periphery of the plurality of capacitors; The capacitors are arranged vertically on the base, and the terminal block is fixed to the side of the side plate away from the capacitors.

[0013] Secondly, this utility model embodiment also provides a capacitor mounting structure, including: Cabinet; The aforementioned capacitor module is fixed inside the cabinet and located in the rear half of the cabinet.

[0014] Compared with the prior art, the solution shown in this application, by installing the capacitor in the rear half of the cabinet, facilitates the direct connection of the wiring from the capacitor module to the SCR input located at the rear of the electrical cabinet, reducing wiring consumables and making wiring easier to organize and perform wiring operations. The space in the rear half of the cabinet is relatively independent, which can reduce interference with other components in the front of the cabinet and improve the rationality of the overall layout. It inherits the installation advantages of the capacitor module mentioned above and reduces the difficulty of cabinet assembly.

[0015] In conjunction with the second aspect, in one possible implementation, the cabinet is provided with a back panel, the back panel and the rear side wall of the cabinet form a ventilation duct extending in the vertical direction, the mounting bracket is spaced at the rear side of the back panel, and the mounting bracket contacts and connects with one of the left and right side walls of the cabinet.

[0016] In conjunction with the second aspect, in one possible implementation, the mounting bracket has a limiting hole on its side, a limiting member is connected in the limiting hole, the limiting member is also connected to the cabinet, and the limiting member is used to limit the mounting bracket in the front-back direction.

[0017] Thirdly, this utility model embodiment also provides an electrical cabinet, including the above-mentioned capacitor mounting structure.

[0018] The solution shown in this application embodiment inherits all the advantages of the above-mentioned capacitor installation structure compared with the prior art. It can achieve the effects of convenient installation, efficient maintenance, good heat dissipation, and structural stability. It can also improve the overall electrical performance reliability of the electrical cabinet, reduce the risk of downtime caused by capacitor failure, and optimize the layout and heat dissipation design of the internal space of the electrical cabinet to adapt to complex working conditions such as high temperature and high vibration. Attached Figure Description

[0019] Figure 1 A three-dimensional structural diagram of the capacitor mounting structure provided in the embodiment of this utility model. Figure 1 ; Figure 2 A three-dimensional structural diagram of the capacitor mounting structure provided in the embodiment of this utility model. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the limiting member used in an embodiment of this utility model; Figure 4 This is a three-dimensional structural diagram of the electrical cabinet provided in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures: 10-Mounting bracket; 11-Connecting column; 12-Anti-rotation part; 13-Base; 14-Side plate; 15-Limiting hole; 20 - Capacitor; 21 - Terminal block; 30-Terminal block; 40 - Limiting component; 41 - Vertical plate; 42 - Horizontal plate; 43 - Raised part; 44 - Reinforcing plate; 50 - Cabinet body; 51 - Support beam; 52 - Back panel. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] Please refer to the following: Figures 1 to 4 The capacitor mounting structure provided by this utility model will now be described. The capacitor mounting structure includes a mounting bracket 10, multiple capacitors 20, and a terminal block 30. The multiple capacitors 20 are placed on the mounting bracket 10, and each capacitor 20 has a terminal block 21 on its top. The terminal block 30 is disposed on the mounting bracket 10 and is located away from the multiple capacitors 20. Each terminal block 21 is electrically connected to the terminal block 30 via a cable.

[0024] The mounting rack 10 serves as the mounting base for multiple capacitors 20 and is fixed inside the cabinet 50 of the electrical cabinet. Since the multiple capacitors 20 are placed on the mounting rack 10, the mounting rack 10 must have a base plate or base 13. The multiple capacitors 20 can be arranged in a rectangular array or in a straight line on the mounting rack 10, depending on the internal space of the cabinet 50.

[0025] Multiple capacitors 20 are connected to terminal blocks 30 via cables to achieve series and parallel connections as required. The capacitors 20 can be of different models; that is, one or more capacitors 20 may have different capacitance values ​​than the others. Different capacitance values ​​result in different frequency response characteristics. Larger capacitors provide better filtering for low-frequency signals, while smaller capacitors are better at filtering high-frequency signals. Combining multiple capacitors 20 of different capacitance values ​​allows for effective filtering over a wider frequency range, effectively removing various noises from the power supply.

[0026] Terminal block 30 is mounted on mounting bracket 10, which also provides a mounting base for terminal block 30. When capacitor 20 is operating, its terminals carry high voltage. If terminal block 30 is placed close to capacitor 20, the distance between them may be insufficient due to space constraints. If the distance between the conductive parts of capacitor 20 and terminal block 30 is too small, air breakdown may occur under high voltage, generating an electric arc, leading to a short circuit or even a fire. To avoid these problems, this embodiment positions terminal block 30 away from multiple capacitors 20. Furthermore, the physical separation provided by mounting bracket 10 naturally increases the electrical clearance and creepage distance between capacitor 20 and terminal block 30, avoiding the risks of breakdown and creepage due to excessive proximity, thus complying with electrical safety regulations.

[0027] It should be noted that the terminal block 30 has multiple connection points, and the cable leading from each terminal 21 is electrically connected to a different connection point on the terminal block 30. The terminals 21 on the top of the multiple capacitors 20 are connected to the terminal block 30 via cables. Compared to directly connecting to the busbar via the terminals 21, the cables have a certain length and flexibility, which can compensate for minor deviations in the installation position of the capacitors 20, eliminating the need for strict alignment between the busbar and the capacitor 20 leads. Furthermore, the cables do not cover the top of the capacitors 20 like the busbar, thus not affecting the natural convection heat dissipation of the capacitors 20, and do not occupy additional top space.

[0028] When a capacitor 20 fails, the faulty capacitor 20 can be removed individually by simply disconnecting the cable on the corresponding terminal 21 without disassembling the entire busbar or interrupting the connection of other capacitors. Each capacitor 20 is connected to the terminal block 30 via an independent cable, and a failure of a single cable only affects the corresponding capacitor 20 and will not affect the entire capacitor module.

[0029] Compared with the prior art, the capacitor module in this embodiment provides a fixed installation position for multiple capacitors 20, making the installation of capacitors 20 more standardized and orderly; the terminal block 30 is electrically connected to the terminals of each capacitor 20 through cables, without the need to strictly match the spacing of the terminals. Even if there is a certain error in the arrangement of multiple capacitors 20, normal electrical connection can be achieved by adjusting the cables, reducing the risk of connection misalignment. The terminal block 30 is mounted on the mounting bracket 10 and is away from the multiple capacitors 20, which ensures installation and reduces the space occupied above the capacitors 20. This is conducive to optimizing the space layout inside the electrical cabinet and improving space utilization. When capacitors need maintenance or replacement, the cable connection method makes it easier to disassemble and reconnect, reducing maintenance costs.

[0030] In some embodiments, a specific implementation of the above-described terminal block 30 may employ, as follows: Figure 2 and Figure 4 The structure shown. See also Figure 2 and Figure 4 The terminal block 30 is located on the radial periphery of the multiple capacitors 20, and the top of the mounting bracket 10 does not protrude from each terminal block.

[0031] The terminal block 30 is located on the radial outer periphery of the multiple capacitors 20. Compared with the terminal block 20 being located above or below the capacitors 20, it can save the length of the cable used to connect the terminal block 30 to the terminal block 21, making wiring easier and avoiding electromagnetic interference caused by direct contact with the capacitors 20.

[0032] In addition, the top of the mounting bracket 10 does not protrude from the terminal 21, allowing the cable to be freely laid on the mounting bracket 10 without creating an additional protrusion, further saving the cable length and avoiding obstructing the cable wiring path, thus improving the convenience of wiring.

[0033] In some embodiments, a specific arrangement of the above-mentioned capacitors can be as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 Multiple capacitors 20 are arranged in a multi-row, multi-column array on the mounting bracket 10. The terminal block 30 extends along the row direction of the multiple capacitors 20 or along the column direction of the multiple capacitors 20. The row direction can be the left-right direction of the cabinet 50, and the column direction can be the front-back direction of the cabinet 50.

[0034] In the prior art, multiple capacitors 20 in an electrical cabinet are usually arranged in a straight line, while the terminal block 30 needs to accommodate the installation of multiple capacitors 20. The length of the terminal block 30 is adapted to the length of the arrangement of multiple capacitors 20, resulting in a relatively long length of the terminal block 30.

[0035] In this embodiment, the multiple capacitors 20 are arranged in an array to form an array group. The total length of the array group, whether in the row direction or the column direction, is shorter than that of the traditional linear array of multiple capacitors 20. Correspondingly, the length of the terminal block 30 that connects to the multiple capacitors 20 is also shortened, which reduces the material used in the terminal block 30 and lowers the manufacturing cost of the terminal block 30.

[0036] Here, we take 6 capacitors 20 as an example. The array group can be three rows and two columns or four rows and two columns. When it is four rows and two columns, not every array point is equipped with a capacitor 20. Some array points are empty. The array point is the intersection of the row direction and the column direction.

[0037] Specifically, the multiple capacitors 20 are divided into at least two groups of capacitors. The multiple capacitors 20 in each group are arranged in a triangular array structure. The column with the fewest capacitors 20 in the column direction is defined as the top of the triangular array structure. The tops of the two adjacent groups of capacitors are opposite to each other.

[0038] Taking a mounting bracket 10 with 6 capacitors 20 as an example, every three capacitors 20 form a triangular array structure. This arrangement can make full use of the space on the mounting bracket 10, reduce the volume of the mounting bracket 10, and reduce the space occupied in the cabinet 50. Furthermore, the triangular array structure can make the capacitors 20 more evenly distributed, thereby improving the stress stability of the mounting bracket 10.

[0039] In practical implementation, at least one group of capacitors has a different height than the other groups. This can be understood as at least one group having a different capacitance than the others. Different capacitances result in different frequency response characteristics. Combining multiple capacitors of different capacitances can achieve good filtering effects over a wider frequency range, effectively filtering out various noises in the power supply. By mounting these capacitor groups of different heights on the mounting bracket 10, it is compatible with capacitors 20 of different specifications and models, improving the module's versatility and adaptability.

[0040] In some embodiments, a specific implementation of the mounting bracket 10 described above can be as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 The mounting bracket 10 includes a base 13 and a side plate 14. The side plate 14 is fixed to one side of the base 13 and is located on the radial periphery of the plurality of capacitors 20. The plurality of capacitors 20 are vertically arranged on the base 13, and the terminal block 30 is fixed on the side plate 14 away from the capacitors 20.

[0041] For example, when the side panel 14 is fixed to the left side of the base 13, the mounting bracket 10 is close to the right side wall of the cabinet 50, and multiple capacitors 20 are located between the side panel 14 and the right side wall of the cabinet 50; when the side panel 14 is fixed to the right side of the base 13, the mounting bracket 10 is installed close to the left side of the cabinet 50, and multiple capacitors 20 are located between the side panel 14 and the left side wall of the cabinet 50.

[0042] Another scenario is that the base 13 is installed close to the rear wall of the cabinet 50, in which case the side panel 14 is installed on the front side of the base 13.

[0043] The mounting bracket 10 in this embodiment has a simple structure. It forms a stable frame with the base 13 and the side plate 14, which improves the firmness of the capacitor 20 installation and reduces the impact of vibration. The side plate 14 physically isolates the terminal block 30 and the capacitor 20, reducing the magnetic field generated by the large current of the terminal block 30 from interfering with the capacitor 20. In addition, the terminal block 30 is located outside the side plate 14, which facilitates individual maintenance.

[0044] During installation, the top of the side plate 14 does not protrude beyond the height of the capacitor 20, nor does it protrude beyond the terminal block 30. The capacitors 20 on the base 13 come in various sizes, each with a different height. Since the side plate 14 is lower than the height of all the capacitors 20, it allows for the installation of the terminal block 30 while also creating a physical gap between the capacitors 20 and the terminal block 30. This also reduces the material used in the side plate 14, lowering manufacturing costs.

[0045] In some embodiments, a specific implementation of the above-described terminal block 30 may employ, as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 The terminal block 30 is fixed on the side of the side plate 14 away from the multiple capacitors 20, and the terminal block 30 is arranged in the front-back direction.

[0046] The terminal block 30 here is strip-shaped and arranged in the front-to-back direction, that is, the length direction of the terminal block 30 is the front-to-back direction. The strip-shaped terminal block 30 is convenient to cut according to the actual installation situation during use, and its surface can evenly distribute more wiring holes to meet the installation requirements of multi-circuit neutral lines. The long strip structure increases the contact area with air, and the narrow design reduces heat accumulation and lowers the risk of poor contact due to overheating.

[0047] In some embodiments, a specific installation method for the above-mentioned terminal block 30 can be as follows: Figure 2 The structure shown. See also Figure 2 The mounting bracket 10 is provided with connecting posts 11 for fixing the terminal block 30. Multiple connecting posts 11 are spaced apart along the arrangement direction of the terminal block 30. The connecting posts 11 are located between the mounting bracket 10 and the terminal block 30, which allows a certain gap to be formed between the terminal block 30 and the mounting bracket 10, thereby facilitating heat dissipation of the terminal block 30 during operation.

[0048] When the terminal block 30 is arranged in the front-to-back direction, multiple connecting posts 11 are spaced apart in the front-to-back direction; when the terminal block 30 is arranged in the left-to-right direction, multiple connecting posts 11 are arranged in the left-to-right direction.

[0049] The connecting post 11 is connected to the mounting bracket 10 and the terminal block 30 using threaded connectors. Specifically, each end of the connecting post 11 has an internal threaded hole, and the side wall of the mounting bracket 10 and the terminal block 30 have through holes for bolts to pass through. The bolts pass through the through holes and connect with the internal threaded holes on the connecting post 11 to achieve fixation.

[0050] To further improve the stability of bolted connections, washers can be installed on the bolts.

[0051] The threaded connector allows for easy adjustment of the clamping force by screwing, ensuring the installation stability of the terminal block 30. It also facilitates the disassembly and maintenance of the terminal block 30, reducing maintenance costs and time.

[0052] To facilitate installation, the outer periphery of the connecting post 11 is provided with an anti-rotation part 12. The cross-section of the anti-rotation part 12 is polygonal. After the connecting post 11 is connected to the mounting bracket 10, the terminal block 30 is installed. At this time, the anti-rotation part 12 can be clamped with a tool to prevent the connecting post 11 from rotating when the bolts on the terminal block 30 are tightened. This facilitates operation and ensures the firmness of the connection between the terminal block 30 and the connecting post 11.

[0053] Based on the same inventive concept, see [link to inventive concept] Figure 4 This application embodiment also provides a capacitor mounting structure, including a cabinet 50 and the aforementioned capacitor module, wherein the capacitor module is fixed inside the cabinet 50 and located in the rear half of the cabinet 50.

[0054] In the prior art, the capacitor module is installed at the front of the electrical cabinet. Since it needs to be connected to the SCR input at the rear of the electrical cabinet, the wiring led out from the capacitor module needs to bypass the electrical cabinet before connecting to the SCR input. This wiring process is not only cumbersome and consumes a lot of wiring materials, but it is also inconvenient to tidy up the wiring after wiring.

[0055] Compared with the prior art, the capacitor mounting structure provided in this application, by installing the capacitor module in the rear half of the cabinet 50, facilitates the direct connection of the wiring led out from the capacitor module to the SCR input located at the rear of the electrical cabinet, reducing wiring consumables and making wiring easier to organize and perform wiring operations. The space in the rear half of the cabinet 50 is relatively independent, which can reduce interference with other components in the front of the cabinet 50 and improve the rationality of the overall layout. It inherits the installation advantages of the capacitor module mentioned above and reduces the difficulty of assembling the cabinet 50.

[0056] In some embodiments, an improved implementation of the mounting bracket 10 described above may employ the structure shown in Figure 4. See also... Figure 4 The cabinet 50 is provided with a back panel 52. The back panel 52 and the rear side wall of the cabinet 50 form a ventilation channel extending in the vertical direction. The mounting bracket 10 is located at intervals behind the back panel 52, and the mounting bracket 10 contacts and connects with one of the left and right side walls of the cabinet 50.

[0057] A fan is installed at the bottom of the ventilation channel inside the cabinet 50. The fan and ventilation channel can dissipate heat from the internal components, allowing hot air to be exhausted outside the cabinet 50 after passing through the ventilation channel. The mounting bracket 10 is spaced behind the back panel 52, so it does not block the ventilation channel and ensures that the airflow flows smoothly from bottom to top to ensure the overall heat dissipation of the cabinet 50. Furthermore, when the fan is working, since the side plate 14 on the base 13 is located on the left or right side, the front and back of the capacitor 20 are not obstructed, and the airflow also passes through the capacitor module to dissipate heat from the capacitor 20, preventing the capacitor 20 from overheating and being damaged.

[0058] In some embodiments, an improved implementation of the mounting bracket 10 described above can employ, as follows: Figure 1 and Figure 3 The structure shown. See also Figure 1 and Figure 3 The mounting bracket has a limiting hole 15 on its side, and a limiting component 40 is connected inside the limiting hole 15. The limiting component 40 is connected to the cabinet 50 and is used to limit the mounting bracket 10 in the front and rear directions.

[0059] After the limiting component 40 limits the mounting bracket 10, it can prevent the mounting bracket 10 from colliding in the front and back directions, prevent the capacitor 20 from being damaged by vibration and collision, protect the wiring terminal 21 and cable connection; improve the installation stability of the capacitor module in the cabinet 50, reduce the risk of displacement during long-term operation, and ensure the reliability of electrical connection.

[0060] Specifically, the limiting member 40 has an extension portion that extends into the limiting hole 15, and the extension portion extends into the limiting hole 15 in the front-back direction.

[0061] Before fixing the mounting bracket 10, ensure that the extension part matches the limiting hole 15. Then, connect and fix the mounting bracket 10 to the support beam 51 inside the cabinet 50. After installation, the mounting bracket 10 matches the extension part. When the mounting bracket 10 shakes, the extension part can abut against the front and rear side walls of the limiting hole 15, thereby limiting the mounting bracket 10.

[0062] As a modified embodiment of the limiting member 40, two baffles may be provided on the left or right side wall of the mounting bracket 10, with the limiting member 40 positioned between the two baffles, thereby limiting the mounting bracket 10 in the front-back direction.

[0063] The connection between the limiting component 40 and the cabinet 50 can be made using screws or bolts.

[0064] In some embodiments, a specific implementation of the aforementioned limiting member 40 may employ, as follows: Figure 3 The structure shown. See also Figure 3 The limiting member 40 includes a vertical plate 41 and a horizontal plate 42. The horizontal plate 42 is disposed on the top of the vertical plate 41 and forms the aforementioned extension portion.

[0065] The horizontal plate 42 and the vertical plate 41 can be detachably connected or integrally formed, for example, by bending the top of the vertical plate 41 to form the horizontal plate 42. The limiting member 40 can be arranged on the side of the base 13 away from the side plate 14, so as not to interfere with the installation of the side plate 14 and the terminal block 30.

[0066] The horizontal plate 42 curves upward on the side opposite to the vertical plate 41 to form a raised part 43, the highest point of which is higher than the top surface inside the limiting hole 15. The raised part 43 ensures that the inserted part is not easily dislodged from the limiting hole 15 when the mounting bracket 10 shakes, and the raised part 43 can also abut against the top surface inside the limiting hole 15, resulting in a better limiting effect.

[0067] To improve the structural strength of the vertical plate 41, reinforcing plates 44 can be installed on the front and rear sides of the vertical plate 41. The surface of the reinforcing plate 44 is perpendicular to the front and rear direction, which can prevent the vertical plate 41 from bending during use and affecting the anti-shaking effect.

[0068] Based on the same inventive concept, this application also provides an electrical cabinet, including the above-mentioned capacitor mounting structure.

[0069] Compared with the prior art, the electrical cabinet in this embodiment inherits all the advantages of the capacitor installation structure, and can achieve the effects of convenient installation, efficient maintenance, good heat dissipation, and structural stability. It can also improve the overall electrical performance reliability of the electrical cabinet and reduce the risk of downtime caused by capacitor failure. The layout and heat dissipation design of the internal space of the electrical cabinet are optimized to adapt to complex working conditions such as high temperature and high vibration.

[0070] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A capacitor module, characterized in that, include: Mounting bracket (10); Multiple capacitors (20) are placed on the mounting bracket (10), each capacitor (20) having a terminal block (21) on its top; and A terminal block (30) is disposed on the mounting bracket (10) and is away from the plurality of capacitors (20). Each of the terminal blocks (21) is electrically connected to the terminal block (30) via a cable.

2. The capacitor module as described in claim 1, characterized in that, The terminal block (30) is located radially around the plurality of capacitors (20), and the top of the mounting bracket (10) does not protrude from each of the terminal blocks (21).

3. The capacitor module as described in claim 2, characterized in that, The capacitors (20) are arranged in a multi-row, multi-column array on the mounting bracket (10), and the terminal block (30) extends along the row direction of the capacitors (20) or along the column direction of the capacitors (20).

4. The capacitor module as described in claim 3, characterized in that, The capacitors (20) are divided into at least two groups of capacitors. The capacitors (20) in each group are arranged in a triangular array structure. The column with the fewest capacitors (20) in the column direction is defined as the top of the triangular array structure. The tops of the two adjacent groups of capacitors are opposite to each other.

5. The capacitor module as described in claim 4, characterized in that, The height of at least one group of capacitor banks is different from the height of the other groups of capacitor banks.

6. The capacitor module as described in claim 1, characterized in that, The mounting bracket (10) includes: Base (13); Side plate (14) is fixed to one side of the base (13) and is located on the radial periphery of the plurality of capacitors (20); Among them, a plurality of capacitors (20) are vertically arranged on the base (13), and the terminal block (30) is fixed on the side plate (14) away from the capacitors (20).

7. A capacitor mounting structure, characterized in that, include: Cabinet (50); The capacitor module according to any one of claims 1-6, wherein the capacitor module is fixed inside the cabinet (50) and located in the rear half of the cabinet (50).

8. The capacitor mounting structure as described in claim 7, characterized in that, The cabinet (50) is provided with a back panel (52), the back panel (52) and the rear side wall of the cabinet (50) form a ventilation duct extending in the vertical direction, the mounting bracket (10) is located at intervals on the rear side of the back panel (52), and the mounting bracket (10) contacts and connects with one of the left and right side walls of the cabinet (50).

9. The capacitor mounting structure as described in claim 7, characterized in that, The mounting bracket (10) has a limiting hole (15) on its side. A limiting member (40) is connected inside the limiting hole (15). The limiting member (40) is also connected to the cabinet (50). The limiting member (40) is used to limit the mounting bracket (10) in the front-back direction.

10. An electrical cabinet, characterized in that, Includes the capacitor mounting structure as described in any one of claims 7-9.

Images