Grounding blade mounting assembly and frequency converter cabinet

Abstract

The utility model provides a kind of ground knife installation component and frequency converter cabinet, the ground knife installation component includes: mounting post and mounting plate;At least partial area of the mounting post outer surface is attached with the inner surface of the mounting plate;The mounting plate is provided with mounting plate through-hole along reference direction, the reference direction is the direction perpendicular to the inner surface of the mounting plate, the mounting plate through-hole exposes target area of the mounting post;The target area is provided with first installation through-hole and first adapter through-hole along the reference direction, the first installation through-hole is configured as installation first type ground knife, the first adapter through-hole is configured as connecting adapter plate, the adapter plate is configured as installation second type ground knife.The ground knife installation component provided in the scheme can realize the compatible installation of different models ground knife.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a grounding switch mounting assembly and a frequency converter cabinet. Background Technology

[0002] Variable frequency drive (VFD) cabinets are key integrated devices in industrial automation systems that realize motor drive and control. They achieve intelligent speed regulation and energy efficiency optimization of motors by integrating VFDs and power distribution units. Grounding switches are important safety components in VFD cabinets, used to reliably ground the main circuit during equipment maintenance to ensure the safety of personnel.

[0003] Currently, different models of grounding switches require different mounting plate assemblies to be installed on the frequency converter cabinet.

[0004] However, different mounting plates with different structures are required for different models of grounding switches, and the bill of materials and models of the corresponding frequency converter cabinets must also be configured differently according to the grounding switch model. This not only increases production costs, but also poses a risk of configuration errors. Utility Model Content

[0005] To solve the above or other technical problems, the grounding switch mounting assembly and frequency converter cabinet provided by this utility model can reduce operation and maintenance costs.

[0006] According to a first aspect of the present invention, a grounding switch mounting assembly is provided, the grounding switch mounting assembly comprising: a mounting post and a mounting plate; at least a portion of the outer surface of the mounting post is in contact with the inner surface of the mounting plate; the mounting plate is provided with a mounting plate through hole along a reference direction, the reference direction being a direction perpendicular to the inner surface of the mounting plate, the mounting plate through hole exposing a target area of ​​the mounting post; the target area is provided with a first mounting through hole and a first adapter through hole along the reference direction, the first mounting through hole being configured to mount a first type of grounding switch, the first adapter through hole being configured to connect an adapter plate, and the adapter plate being configured to mount a second type of grounding switch.

[0007] In one possible implementation, the first mounting through-hole includes a first mounting sub-through-hole and a first fixing sub-through-hole; the first mounting sub-through-hole is configured to allow the drive shaft of the first type of grounding knife to pass through; the first fixing sub-through-hole is configured to connect the fixing member of the first type of grounding knife to the mounting post.

[0008] In one possible implementation, the adapter plate is provided with a second mounting through hole and a second adapter through hole; the outline of the adapter plate matches the through hole of the mounting plate, and the second mounting through hole is configured to mount the second type of grounding switch; the adapter plate is connected to the mounting post based on the through first adapter through hole and second adapter through hole, and the outer surface of the adapter plate is flush with the outer surface of the mounting plate, and the inner surface of the adapter plate is at least partially in contact with the mounting post.

[0009] In one possible implementation, the inner surface of the adapter plate is provided with a boss that matches the first mounting sub-through hole, and the second mounting through hole penetrates the boss; based on the fact that the boss is embedded in the first mounting sub-through hole, the first adapter through hole and the second adapter through hole are connected.

[0010] In one possible implementation, the second mounting through-hole includes a second mounting sub-through-hole and a second fixing sub-through-hole; the second mounting sub-through-hole is configured to allow the drive shaft of the second type of grounding knife to pass through; the second fixing sub-through-hole is configured to connect the fixing member of the second type of grounding knife to the adapter plate.

[0011] In one possible implementation, the second fixing sub-hole is a countersunk hole, and the bottom of the second fixing sub-hole is located inside the boss. The fixing member of the second type of grounding knife and the adapter plate are connected by a countersunk bolt passing through the second fixing sub-hole.

[0012] According to a second aspect of the present invention, a frequency converter cabinet is provided, the frequency converter cabinet comprising: a cabinet body, a grounding switch, and a grounding switch mounting assembly as described in the first aspect; the grounding switch is located inside the cabinet body, and the drive shaft of the grounding switch extends outside the cabinet body after passing through the grounding switch mounting assembly; the mounting column is a support column of the cabinet body, and the mounting plate is part of the cabinet body skin.

[0013] In one possible implementation, when the grounding switch is a first type of grounding switch, the first mounting through hole includes a first mounting sub-through hole and a first fixing sub-through hole; the drive shaft of the first type of grounding switch extends to the outside of the cabinet through the first mounting sub-through hole and the mounting plate through hole; the fixing member of the first type of grounding switch is connected to the mounting post through a first connector passing through the first fixing sub-through hole and the mounting plate through hole.

[0014] In one possible implementation, when the grounding switch is a second type of grounding switch, the adapter plate and the mounting post are connected by a second connector passing through the first adapter through hole and the second adapter through hole on the adapter plate; the boss on the inner surface of the adapter plate is embedded in the first mounting sub-through hole included in the first mounting through hole, and the outer surface of the adapter plate is flush with the outer surface of the mounting plate; the adapter plate is also provided with a second mounting through hole penetrating the boss, the second mounting through hole including a second mounting sub-through hole and a second fixing sub-through hole; the drive shaft of the second type of grounding switch extends to the outside of the cabinet through the second mounting sub-through hole; the fixing member of the second type of grounding switch is connected to the adapter plate by a second connector passing through the second fixing sub-through hole.

[0015] In one possible implementation, the mounting plate is provided with a first positioning hole and a second positioning hole, the mounting column is provided with a third positioning hole, and the base of the cabinet is provided with a fourth positioning hole; the mounting plate and the mounting column are connected by a third connector passing through the first positioning hole and the third positioning hole, and the mounting plate and the base of the cabinet are connected by a fourth connector passing through the second positioning hole and the fourth positioning hole.

[0016] According to the above technical solution, the grounding switch mounting assembly includes a mounting post and a mounting plate. At least a portion of the outer surface of the mounting post is in contact with the inner surface of the mounting plate. The mounting plate has a mounting plate through-hole along a reference direction, which is perpendicular to the inner surface of the mounting plate. The mounting plate through-hole exposes the target area of ​​the mounting post. The target area has a first mounting through-hole and a first adapter through-hole along the reference direction. The first mounting through-hole is configured to mount a first type of grounding switch, and the first adapter through-hole is configured to connect an adapter plate. The adapter plate is configured to mount a second type of grounding switch. Through the universally designed mounting post and mounting plate, combined with the adaptable design of the adapter plate, compatible installation of different types of grounding switches can be achieved, improving the standardization and versatility of components. Compared with the prior art, the universal grounding switch mounting assembly provided by this solution can be centrally procured and managed as a universal material. This eliminates the need for differentiated configuration of the mounting assembly according to the grounding switch model, reducing production costs. At the same time, the universal structure avoids the risk of configuration errors, thereby improving product reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a grounding switch mounting assembly provided in an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of another grounding switch mounting assembly provided in an embodiment of this utility model;

[0019] Figure 3This is a schematic diagram of the front of an adapter plate provided in an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the back of an adapter plate provided in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of a frequency converter cabinet provided in an embodiment of this utility model.

[0022] List of reference numerals in the attached diagram:

[0023] 10: Grounding switch mounting assembly; 11: Mounting post; 12: Mounting plate

[0024] 13: Mounting plate through hole; 14: First mounting through hole; 141: First mounting sub-through hole

[0025] 142: First fixing through hole; 15: First adapter through hole; 16: Adapter plate

[0026] 17: Second mounting through hole; 171: Second mounting sub-through hole; 172: Second fixing sub-through hole

[0027] 18: Second adapter hole; 20: Inverter cabinet; 21: Cabinet body

[0028] 22: First positioning hole; 23: Second positioning hole Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] As mentioned earlier, the frequency converter cabinet is a key integrated device in industrial automation systems for realizing motor drive and control. It achieves intelligent speed regulation and energy efficiency optimization of the motor through the internal integration of frequency converters and power distribution units. The grounding switch is an important safety component in the frequency converter cabinet, used to reliably ground the main circuit during equipment maintenance to ensure the safety of personnel. Currently, different models of grounding switches require different mounting plate assemblies for installation on the frequency converter cabinet. However, configuring different mounting plate structures for different grounding switch models necessitates differentiated configurations of the frequency converter cabinet's bill of materials and model, which not only increases production costs but also carries the risk of configuration errors.

[0032] In this embodiment of the invention, the grounding switch mounting assembly includes a mounting post and a mounting plate. At least a portion of the outer surface of the mounting post is in contact with the inner surface of the mounting plate. The mounting plate has a mounting plate through-hole along a reference direction, which is perpendicular to the inner surface of the mounting plate. The mounting plate through-hole exposes the target area of ​​the mounting post. The target area has a first mounting through-hole and a first adapter through-hole along the reference direction. The first mounting through-hole is configured to mount a first type of grounding switch, and the first adapter through-hole is configured to connect an adapter plate. The adapter plate is configured to mount a second type of grounding switch. Through the universally designed mounting post and mounting plate, combined with the adaptable design of the adapter plate, compatible installation of different types of grounding switches can be achieved, improving the standardization and versatility of components. Compared with the prior art, the universal grounding switch mounting assembly provided by this solution can be centrally procured and managed as a universal material, thus eliminating the need for differentiated configuration of the mounting assembly according to the grounding switch model, reducing production costs. At the same time, the universal structure avoids the risk of configuration errors, thereby improving product reliability.

[0033] It should be noted that the accompanying drawings in the specification of this utility model are only for the purpose of facilitating the explanation and understanding of this embodiment, and are not intended to limit this utility model in any way. They are not necessarily drawn to scale.

[0034] The grounding switch mounting assembly 10 provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0035] Figure 1 This is a schematic diagram of a grounding switch mounting assembly 10 provided in an embodiment of this utility model, as shown below. Figure 1As shown, the grounding switch mounting assembly 10 includes a mounting post 11 and a mounting plate 12. At least a portion of the outer surface of the mounting post 11 is in contact with the inner surface of the mounting plate 12. The mounting plate 12 has a mounting plate through-hole 13 along a reference direction, which is perpendicular to the inner surface of the mounting plate 12, exposing a target area of ​​the mounting post 11. The target area has a first mounting through-hole 14 and a first adapter through-hole 15 along the reference direction. The first mounting through-hole 14 is configured to mount a first type of grounding switch, and the first adapter through-hole 15 is configured to connect an adapter plate 16, which is configured to mount a second type of grounding switch.

[0036] The mounting post 11 and the mounting plate 12 are fixed in relative position, and at least a portion of the outer surface of the mounting post 11 is in contact with the inner surface of the mounting plate 12. A mounting plate through-hole 13 is provided on the mounting plate 12 in a direction perpendicular to the inner surface of the mounting plate 12, exposing the target area of ​​the mounting post 11. A first mounting through-hole 14 and a first transition through-hole 15 are provided on the target area of ​​the mounting post 11. Both the first mounting through-hole 14 and the first transition through-hole 15 form a through path with the mounting plate through-hole 13, providing installation space for the grounding switch.

[0037] Depending on the type of grounding switch, the grounding switch mounting assembly 10 may include a mounting post 11 and a mounting plate 12, or it may include a mounting post 11, a mounting plate 12, and an adapter plate 16. Specifically, for a first type of grounding switch with a large-diameter drive shaft, the grounding switch mounting assembly 10 includes a mounting post 11 and a mounting plate 12. The first type of grounding switch is fixed and installed in a designated position through a first mounting through hole 14. For a second type of grounding switch with a small-diameter drive shaft, the grounding switch mounting assembly 10 includes a mounting post 11, a mounting plate 12, and an adapter plate 16. Figure 2 This is a schematic diagram of another grounding switch mounting assembly provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the front of an adapter plate 16 provided in an embodiment of this utility model, as shown below. Figure 2 As shown, the adapter plate 16 is connected to the mounting post 11 through the first adapter through hole 15 on the mounting post 11, and the second type grounding knife is fixed and installed in the designated position through the adapter plate 16.

[0038] In this embodiment of the invention, the grounding switch mounting assembly 10 includes a mounting post 11 and a mounting plate 12. At least a portion of the outer surface of the mounting post 11 is in contact with the inner surface of the mounting plate 12. The mounting plate 12 has a mounting plate through hole 13 along a reference direction, which is perpendicular to the inner surface of the mounting plate 12. The mounting plate through hole 13 exposes the target area of ​​the mounting post 11. The target area has a first mounting through hole 14 and a first adapter through hole 15 along the reference direction. The first mounting through hole 14 is configured to mount a first type of grounding switch, and the first adapter through hole 15 is configured to connect an adapter plate 16. The adapter plate 16 is configured to mount a second type of grounding switch. Through the universally designed mounting post 11 and mounting plate 12, combined with the adaptable design of the adapter plate 16, compatible installation of different types of grounding switches can be achieved, improving the standardization and versatility of components. Compared with existing technologies, the universal grounding switch installation assembly 10 provided by this solution can be purchased and managed as a universal material, thereby eliminating the need to configure installation assemblies differently according to the grounding switch model, reducing production costs. At the same time, the universal structure can avoid the risk of configuration errors, thereby improving product reliability.

[0039] In one possible implementation, the first mounting through-hole 14 includes a first mounting sub-through-hole 141 and a first fixing sub-through-hole 142. The first mounting sub-through-hole 141 is configured to allow the drive shaft of the first type of grounding switch to pass through. The first fixing sub-through-hole 142 is configured to connect the fixing member of the first type of grounding switch to the mounting post 11.

[0040] The first mounting through hole 14 includes a first mounting sub-through hole 141 and a first fixing sub-through hole 142. The structural dimensions of the first mounting sub-through hole 141 are adapted to the drive shaft bore diameter of the first type of grounding knife, allowing the drive shaft of the first type of grounding knife to pass through. The fixing component of the first type of grounding knife is a structure such as a flange or ear plate on the grounding knife body for fixing, and the fixing component has a reserved hole corresponding to the first fixing sub-through hole 142. When the first type of grounding knife is installed, the fixing component fits against the inner surface of the mounting post 11, and the reserved hole on the fixing component communicates with the first fixing sub-through hole 142, so that the connecting component (such as a bolt) passes through the mounting plate through hole 13, the first fixing sub-through hole 142 and the reserved hole on the fixing component in sequence to lock. In one example, the reserved hole on the fixing component of the first type of grounding knife is a threaded hole, and the connecting component is directly screwed into the threaded hole to complete the locking. In another example, the pre-drilled hole on the fixing part of the first type of grounding knife is a light hole, and the connector passes through the light hole and locks with the nut pre-installed on the inside of the fixing part.

[0041] In this embodiment of the invention, the first mounting through hole 14 includes a first mounting sub-through hole 141 and a first fixing sub-through hole 142. The first mounting sub-through hole 141 is configured to allow the drive shaft of the first type of grounding knife to pass through. The first fixing sub-through hole 142 is configured to connect the fixing member of the first type of grounding knife to the mounting post 11. By providing a positioning reference for the drive shaft through the first mounting sub-through hole 141 and forming a connection interface through the first fixing sub-through hole 142, a precise positioning basis and a stable connection condition can be provided for the first type of grounding knife, thereby enabling precise assembly of the first type of grounding knife.

[0042] In one possible implementation, the adapter plate 16 is provided with a second mounting through hole 17 and a second adapter through hole 18. The outline of the adapter plate 16 matches the mounting plate through hole 13, and the second mounting through hole 17 is configured to mount a second type of grounding switch. The adapter plate 16 is connected to the mounting post 11 based on the through first adapter through hole 15 and second adapter through hole 18, and the outer surface of the adapter plate 16 is flush with the outer surface of the mounting plate 12, and the inner surface of the adapter plate 16 is at least partially in contact with the mounting post 11.

[0043] The adapter plate 16 is provided with a second mounting through hole 17 and a second adapter through hole 18. The second mounting through hole 17 on the adapter plate 16 is configured to install a second type of grounding switch. The outline of the adapter plate 16 matches the mounting plate through hole 13 on the mounting plate 12 to ensure that the adapter plate 16 can be accurately inserted into the mounting plate through hole 13, thereby avoiding installation misalignment caused by gaps between the adapter plate 16 and the edge of the mounting plate through hole 13. When the grounding switch is a second type of grounding switch, the adapter plate 16 is embedded in the mounting plate through hole 13 on the mounting plate 12. The second adapter through hole 18 on the adapter plate 16 forms a through path with the first adapter through hole 15 on the mounting post 11, allowing the connector to pass through to connect the adapter plate 16 to the mounting post 11, thereby realizing the installation of the second type of grounding switch through the second mounting through hole 17 on the adapter plate 16. The outer surface of the adapter plate 16 is flush with the outer surface of the mounting plate 12, and the inner surface of the adapter plate 16 is at least partially in contact with the mounting post 11 to ensure the flatness of the overall structure.

[0044] In this embodiment of the invention, the adapter plate 16 is provided with a second mounting through hole 17 and a second adapter through hole 18. The outline of the adapter plate 16 matches the through hole 13 of the mounting plate, and the second mounting through hole 17 is configured to mount a second type of grounding switch. The adapter plate 16 is connected to the mounting post 11 based on the through first adapter through hole 15 and second adapter through hole 18, and the outer surface of the adapter plate 16 is flush with the outer surface of the mounting plate 12, and the inner surface of the adapter plate 16 is at least partially in contact with the mounting post 11. The reliable assembly of the second type of grounding switch can be achieved through the adaptable design of the detachable adapter plate 16 with the mounting post 11 and the mounting plate 12.

[0045] Figure 4This is a schematic diagram of the back side of an adapter plate 16 provided in an embodiment of the present invention, as shown below. Figure 4 As shown, the inner surface of the adapter plate 16 is provided with a boss that matches the first mounting sub-hole 141, and the second mounting sub-hole 17 penetrates the boss. Based on the boss being embedded in the first mounting sub-hole 141, the first adapter through hole 15 and the second adapter through hole 18 are connected.

[0046] The inner surface of the adapter plate 16 is provided with a boss that matches the first mounting sub-hole 141, and the boss is penetrated by the second mounting through hole 17 to form a channel for the second type of grounding knife drive shaft to pass through. When the adapter plate 16 is inserted into the mounting plate through hole 13, the boss on the inner surface of the adapter plate 16 is precisely embedded in the first mounting sub-hole 141 of the mounting post 11, while the non-bore area on the inner surface of the adapter plate 16 is in contact with the outer surface of the mounting post 11. In this state, the first adapter through hole 15 on the mounting post 11 and the second adapter through hole 18 on the adapter plate 16 are automatically aligned and connected, so that the connector can pass through the through path to connect the adapter plate 16 and the mounting post 11.

[0047] Understandably, since the mounting post 11 needs to be compatible with the first type of grounding knife (whose large-diameter drive shaft passes directly through the first mounting sub-hole 141), the mounting post 11 in this solution does not have a dedicated boss structure for the small-diameter drive shaft adapted to the second type of grounding knife. Instead, a boss structure is provided on the adapter plate 16 to fill the gap between the second type of grounding knife and the mounting post 11 caused by the reserved space of the first mounting sub-hole 141, so as to achieve the adaptation and installation of the grounding knife with the small-diameter drive shaft.

[0048] In this embodiment of the invention, the inner surface of the adapter plate 16 is provided with a boss that matches the first mounting through hole 141, and the second mounting through hole 17 penetrates the boss. Based on the boss being embedded in the first mounting through hole 141, the first adapter through hole 15 and the second adapter through hole 18 are connected. By precisely filling the gap between the second type of grounding knife and the mounting post 11 with the boss on the inner surface of the adapter plate 16, loose installation or drive shaft misalignment can be avoided. Without changing the basic structure of the mounting post 11 and the mounting plate 12, a stable assembly support and precise positioning reference are provided for the small-diameter drive shaft of the second type of grounding knife, so that the mounting post 11 and the mounting plate 12 can be compatible with the installation of the two types of grounding knives without differentiated design.

[0049] In one possible implementation, the second mounting through-hole 17 includes a second mounting sub-through-hole 171 and a second fixing sub-through-hole 172. The second mounting sub-through-hole 171 is configured to allow the drive shaft of the second type grounding switch to pass through. The second fixing sub-through-hole 172 is configured to connect the fixing element of the second type grounding switch to the adapter plate 16.

[0050] The second mounting through hole 17 includes a second mounting sub-through hole 171 and a second fixing sub-through hole 172. The structural dimensions of the second mounting sub-through hole 171 are adapted to the drive shaft bore diameter of the second type of grounding knife, allowing the drive shaft of the second type of grounding knife to pass through. The fixing component of the second type of grounding knife is a flange, lug plate, or other structure on the grounding knife body for fixing, and the fixing component has a reserved hole corresponding to the second fixing sub-through hole 172. When the second type of grounding knife is installed, the fixing component fits against the boss on the inner surface of the adapter plate 16, and the reserved hole on the fixing component communicates with the second fixing sub-through hole 172, allowing the connecting component (such as a bolt) to pass through the second fixing sub-through hole 172 on the adapter plate 16 and lock with the reserved hole on the fixing component.

[0051] In this embodiment of the invention, the second mounting through hole 17 includes a second mounting sub-through hole 171 and a second fixing sub-through hole 172. The second mounting sub-through hole 171 is configured to allow the drive shaft of the second type of grounding knife to pass through. The second fixing sub-through hole 172 is configured to connect the fixing member of the second type of grounding knife to the mounting post 11. By providing a positioning reference for the drive shaft through the second mounting sub-through hole 171 and forming a connection interface through the second fixing sub-through hole 172, a precise positioning basis and a stable connection condition can be provided for the second type of grounding knife, thereby enabling precise assembly of the second type of grounding knife.

[0052] In one possible implementation, the second fixing through hole 172 is a countersunk hole, and the bottom of the second fixing through hole 172 is located inside the boss. The fixing member of the second type grounding knife and the adapter plate 16 are connected by countersunk bolts passing through the second fixing through hole 172.

[0053] The second fixing sub-hole 172 is designed as a countersunk hole structure, with its diameter adapted to the shape of the countersunk bolt. The bolt head can be completely recessed into the tapered countersunk cavity of the second fixing sub-hole 172, preventing the bolt head from protruding from the outer surface of the adapter plate 16 and ensuring the flatness of the overall structure. Simultaneously, the bottom of the second fixing sub-hole 172 is set within a boss to ensure sufficient connection depth when the countersunk bolt passes through, preventing loosening due to insufficient hole depth. During the installation of the second type of grounding switch, the countersunk bolt passes through the second fixing sub-hole 172 and locks into the pre-drilled hole on the fixing member to securely connect the fixing member of the second type of grounding switch to the adapter plate 16. In other embodiments, some of the through holes included in the second fixing sub-hole 172 are set as countersunk holes.

[0054] In this embodiment of the invention, the second fixing through hole 172 is a countersunk hole, and the bottom of the second fixing through hole 172 is located inside the boss. The fixing member of the second type of grounding knife and the adapter plate 16 are connected by a countersunk bolt passing through the second fixing through hole 172. By constructing the second fixing through hole 172 as a countersunk hole and using a countersunk bolt for connection, it can be ensured that the bolt head does not protrude from the outer surface of the adapter plate 16, thereby ensuring the flatness of the overall structure.

[0055] Figure 5 This is a schematic diagram of a frequency converter cabinet 20 provided in an embodiment of the present invention. The frequency converter cabinet 20 includes a cabinet body 21, a grounding switch (not shown in the figure), and a grounding switch mounting assembly 10 as described in any of the above embodiments. The grounding switch is located inside the cabinet body 21, and the drive shaft of the grounding switch extends to the outside of the cabinet body 21 after passing through the grounding switch mounting assembly 10. The mounting column 11 is a support column for the cabinet body 21, and the mounting plate 12 is part of the skin of the cabinet body 21.

[0056] Cabinet 21 serves as the basic support frame for inverter cabinet 20, and integrates electrical components that enable inverter functions within cabinet 21. Inverter cabinet 20 is equipped with a grounding switch and a grounding switch mounting assembly 10 as described in any of the above embodiments. The grounding switch, as a key component ensuring the electrical safety of cabinet 21, is fixed inside cabinet 21. The drive shaft of the grounding switch extends outside cabinet 21 via the grounding switch mounting assembly 10, and one end of the drive shaft located outside cabinet 21 is connected to the grounding switch operating mechanism, allowing operators to control the opening and closing of the grounding switch from outside cabinet 21 via the operating mechanism.

[0057] It should be noted that the grounding switch mounting assembly 10 is not an additional component independent of the cabinet 21, but rather a reuse of the cabinet 21's own structure. The mounting post 11 is a support post for the cabinet 21, and the mounting plate 12 is part of the cabinet 21's outer skin. In one example, the mounting post 11 is the upright of the inverter cabinet 20, and the mounting plate 12 is the sealing plate of the inverter cabinet 20.

[0058] In this embodiment of the utility model, the inverter cabinet 20 includes a cabinet body 21, a grounding switch, and a grounding switch mounting assembly 10 as described in any of the above embodiments. The grounding switch is located inside the cabinet body 21, and the drive shaft of the grounding switch extends to the outside of the cabinet body 21 after passing through the grounding switch mounting assembly 10. The mounting post 11 is a support post for the cabinet body 21, and the mounting plate 12 is part of the outer skin of the cabinet body 21. By reusing the cabinet body 21 structure with the grounding switch mounting assembly 10, the number of independently installed components can be reduced, saving electrical installation space inside the cabinet body 21. Furthermore, through the universal design of the grounding switch mounting assembly 10, compatible installation of different types of grounding switches can be achieved, eliminating the need to design a separate cabinet body 21 structure for each grounding switch model. It can be used as a universal material for unified procurement and management, thereby reducing production costs and improving production efficiency. At the same time, the universal structure can avoid the risk of configuration errors, thereby improving product reliability.

[0059] The following describes the installation of two types of grounding switches in the inverter cabinet 20, using examples.

[0060] In one embodiment, the grounding switch inside the inverter cabinet 20 is a first type of grounding switch, which is installed through a first mounting through hole 14 on the mounting post 11 (support post). Specifically, the first mounting through hole 14 includes a first mounting sub-through hole 141 and a first fixing sub-through hole 142. The drive shaft of the first type of grounding switch extends to the outside of the cabinet 21 through the first mounting sub-through hole 141 and the mounting plate through hole 13. The fixing member of the first type of grounding switch is connected to the mounting post 11 through a first connector passing through the first fixing sub-through hole 142 and the mounting plate through hole 13.

[0061] The drive shaft of the first type of grounding switch extends along the reference direction through the first mounting sub-hole 141 on the mounting post 11 and the mounting plate through-hole 13 on the mounting plate 12 (the outer surface of the cabinet 21) to the outside of the cabinet 21. The drive shaft is located on one side of the outer end of the cabinet 21 and is connected to the operating structure of the first type of grounding switch. At the same time, the first type of grounding switch fixing member is in contact with the inner surface of the mounting post 11, and the reserved hole on the fixing member is in communication with the first fixing sub-hole 142 on the mounting post 11. The first connecting member (such as a bolt) passes through the through hole on the mounting plate 12, the first fixing sub-hole 142 and the reserved hole on the fixing member in sequence to lock the fixing member to the mounting post 11, thereby fixing the position of the first type of grounding switch and realizing the installation of the first type of grounding switch.

[0062] In another embodiment, the grounding knife inside the inverter cabinet 20 is a second type of grounding knife, which is installed via an adapter plate 16. Specifically, the adapter plate 16 is connected to the mounting post 11 via a second connector passing through the first adapter through hole 15 and the second adapter through hole 18 on the adapter plate 16. The boss on the inner surface of the adapter plate 16 is embedded in the first mounting sub-through hole 141 included in the first mounting through hole 14, and the outer surface of the adapter plate 16 is flush with the outer surface of the mounting plate 12. The adapter plate 16 is also provided with a second mounting through hole 17 penetrating the boss, which includes a second mounting sub-through hole 171 and a second fixing sub-through hole 172. The drive shaft of the second type of grounding knife extends to the outside of the cabinet 21 through the second mounting sub-through hole 171. The fixing member of the second type of grounding knife is connected to the adapter plate 16 via a second connector passing through the second fixing sub-through hole 172. In one example, the reserved hole on the fixing member is a threaded hole, and the connector is directly screwed into the threaded hole to complete the locking. In another example, the pre-drilled hole on the fastener is a light hole, and the connector passes through the light hole and locks with the nut pre-installed on the inside of the fastener.

[0063] When installing the second type of grounding switch, the adapter plate 16 is pre-placed into the through hole on the mounting plate 12. The boss on the inner surface of the adapter plate 16 is embedded into the first mounting sub-through hole 141 on the mounting post 11 to fill the gap reserved for the mounting post 11 to be compatible with the first type of grounding switch. At the same time, the non-boob area on the inner surface of the adapter plate 16 is in contact with the outer surface of the mounting post 11, and the outer surface of the adapter plate 16 is flush with the mounting plate 12. In this state, the second adapter through hole 18 on the adapter plate 16 is automatically aligned and connected with the first adapter through hole 15 on the mounting post 11. The second connector passes through the first adapter through hole 15 and the second adapter through hole 18 to fix the adapter plate 16 to the mounting post 11.

[0064] The drive shaft of the second type of grounding knife extends along the reference direction through the second mounting sub-hole 171 of the adapter plate 16 to the outside of the cabinet 21. The drive shaft is located on one side of the outer end of the cabinet 21 and connected to the operating structure of the second type of grounding knife. Simultaneously, the second type of grounding knife fixing member fits against the inner side of the boss on the adapter plate 16, and the reserved hole on the fixing member communicates with the second fixing sub-hole 172 on the adapter plate 16. A third connecting member (such as a bolt) passes through the second fixing sub-hole 172 and locks into the reserved hole on the fixing member to connect the fixing member to the adapter plate 16, thereby fixing the position of the second type of grounding knife and realizing the installation of the second type of grounding knife. Preferably, the second fixing sub-hole 172 is designed as a countersunk hole, and the bottom of the hole is located inside the boss of the adapter plate 16, which can provide sufficient engagement depth for the connecting member (such as a countersunk bolt) and at the same time prevent the bolt head from protruding from the outer surface of the adapter plate 16, ensuring the overall structural flatness.

[0065] In one possible implementation, the mounting plate 12 is provided with a first positioning hole 22 and a second positioning hole 23, the mounting column 11 is provided with a third positioning hole (not shown in the figure), and the base of the cabinet 21 is provided with a fourth positioning hole (not shown in the figure). The mounting plate 12 and the mounting column 11 are connected by a third connector passing through the first positioning hole 22 and the third positioning hole, and the mounting plate 12 and the base of the cabinet 21 are connected by a fourth connector passing through the second positioning hole 23 and the fourth positioning hole.

[0066] The mounting plate 12 is provided with a first positioning hole 22 and a second positioning hole 23. The mounting post 11 has a third positioning hole corresponding to the first positioning hole 22 on the side facing the mounting plate 12. A third connector passes through the first positioning hole 22 of the mounting plate 12 and the third positioning hole of the mounting post 11 in sequence and locks them together, so as to fit at least a part of the inner surface of the mounting plate 12 with the outer surface of the mounting post 11, thereby preventing relative displacement between the mounting plate 12 and the mounting post 11 due to the force on the cabinet 21, and providing a stable reference for the installation of the grounding switch. The base of the cabinet 21 has a fourth positioning hole corresponding to the second positioning hole 23 on the side facing the mounting plate 12. The fourth connector passes through the second positioning hole 23 of the mounting plate 12 and the fourth positioning hole of the base of the cabinet 21 in sequence and locks them together, so that the bottom of the mounting plate 12 and the base of the cabinet 21 form a rigid connection, restricting the horizontal sway of the mounting plate 12.

[0067] In this embodiment of the invention, the mounting plate 12 is provided with a first positioning hole 22 and a second positioning hole 23, the mounting column 11 is provided with a third positioning hole, and the base of the cabinet 21 is provided with a fourth positioning hole. The mounting plate 12 and the mounting column 11 are connected by a third connector passing through the first positioning hole 22 and the third positioning hole, and the mounting plate 12 and the base of the cabinet 21 are connected by a fourth connector passing through the second positioning hole 23 and the fourth positioning hole. The precise alignment of the holes ensures the fixation of the relative positions of the mounting plate 12, the mounting column 11, and the overall frame of the cabinet 21, thereby providing a stable and precise assembly reference for the installation of the grounding switch and ensuring the reliability of the inverter cabinet 20 operation.

[0068] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0069] In this patent application, nouns and pronouns relating to people are not limited to specific genders.

[0070] Finally, it should be noted that the above are merely preferred embodiments of this utility model, used only to illustrate the technical solution of this utility model, and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A grounding switch mounting assembly (10), characterized in that, include: Mounting column (11) and mounting plate (12); At least a portion of the outer surface of the mounting post (11) is in contact with the inner surface of the mounting plate (12); The mounting plate (12) is provided with a mounting plate through hole (13) along a reference direction, the reference direction being a direction perpendicular to the inner surface of the mounting plate (12), the mounting plate through hole (13) exposing the target area of ​​the mounting post (11); The target area is provided with a first mounting through hole (14) and a first adapter through hole (15) along the reference direction. The first mounting through hole (14) is configured to install a first type of grounding switch, and the first adapter through hole (15) is configured to connect an adapter plate (16). The adapter plate (16) is configured to install a second type of grounding switch.

2. The grounding switch mounting assembly (10) according to claim 1, characterized in that, The first mounting through hole (14) includes a first mounting sub-through hole (141) and a first fixing sub-through hole (142); The first mounting sub-through hole (141) is configured to allow the drive shaft of the first type of grounding knife to pass through; The first fixing sub-hole (142) is configured to connect the fixing member of the first type of grounding knife to the mounting post (11).

3. The grounding switch mounting assembly (10) according to claim 2, characterized in that, The adapter plate (16) is provided with a second mounting through hole (17) and a second adapter through hole (18). The outline of the adapter plate (16) matches the through hole (13) of the mounting plate, and the second mounting through hole (17) is configured to install the second type of grounding switch; The adapter plate (16) is connected to the mounting post (11) based on the through first adapter through hole (15) and second adapter through hole (18), and the outer surface of the adapter plate (16) is flush with the outer surface of the mounting plate (12), and the inner surface of the adapter plate (16) is at least partially in contact with the mounting post (11).

4. The grounding switch mounting assembly (10) according to claim 3, characterized in that, The inner surface of the adapter plate (16) is provided with a boss that matches the first mounting sub-through hole (141), and the second mounting through hole (17) passes through the boss. Based on the boss being embedded in the first mounting sub-hole (141), the first adapter through hole (15) and the second adapter through hole (18) are connected.

5. The grounding switch mounting assembly (10) according to claim 4, characterized in that, The second mounting through hole (17) includes a second mounting sub-through hole (171) and a second fixing sub-through hole (172); The second mounting sub-through hole (171) is configured to allow the drive shaft of the second type of grounding knife to pass through; The second fixing sub-hole (172) is configured to connect the fixing member of the second type of grounding knife to the adapter plate (16).

6. The grounding switch mounting assembly (10) according to claim 5, characterized in that, The second fixing sub-hole (172) is a countersunk hole, and the bottom of the second fixing sub-hole (172) is located inside the boss. The fixing member of the second type of grounding knife and the adapter plate (16) are connected by a countersunk bolt passing through the second fixing sub-hole (172).

7. A frequency converter cabinet (20), characterized in that, include: Cabinet (21), grounding switch and grounding switch mounting assembly (10) as described in any one of claims 1-6; The grounding knife is located inside the cabinet (21), and the drive shaft of the grounding knife extends to the outside of the cabinet (21) after passing through the grounding knife mounting assembly (10); The mounting column (11) is the support column of the cabinet (21), and the mounting plate (12) is part of the skin of the cabinet (21).

8. The frequency converter cabinet (20) according to claim 7, characterized in that, When the grounding switch is a first type of grounding switch, the first mounting through hole (14) includes a first mounting sub-through hole (141) and a first fixing sub-through hole (142). The drive shaft of the first type of grounding knife extends to the outside of the cabinet (21) through the first mounting sub-through hole (141) and the mounting plate through hole (13); The fixing member of the first type of grounding knife is connected to the mounting post (11) by a first connector passing through the first fixing sub-hole (142) and the mounting plate through-hole (13).

9. The inverter cabinet (20) according to claim 7, characterized in that, When the grounding switch is a second type of grounding switch, the adapter plate (16) and the mounting post (11) are connected by a second connector passing through the first adapter through hole (15) and the second adapter through hole (18) on the adapter plate (16); The boss on the inner surface of the adapter plate (16) is embedded in the first mounting sub-through hole (141) included in the first mounting through hole (14), and the outer surface of the adapter plate (16) is flush with the outer surface of the mounting plate (12). The adapter plate (16) is also provided with a second mounting through hole (17) penetrating the boss. The second mounting through hole (17) includes a second mounting sub-through hole (171) and a second fixing sub-through hole (172). The drive shaft of the second type of grounding switch extends outside the cabinet (21) through the second mounting sub-hole (171); The fixing member of the second type of grounding knife is connected to the adapter plate (16) by a second connector passing through the second fixing sub-hole (172).

10. The inverter cabinet (20) according to any one of claims 7-9, characterized in that, The mounting plate (12) is provided with a first positioning hole (22) and a second positioning hole (23), the mounting column (11) is provided with a third positioning hole, and the base of the cabinet (21) is provided with a fourth positioning hole; The mounting plate (12) is connected to the mounting column (11) by a third connector passing through the first positioning hole (22) and the third positioning hole, and the mounting plate (12) is connected to the base of the cabinet (21) by a fourth connector passing through the second positioning hole (23) and the fourth positioning hole.

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