Internal fixing device for frequency converter control cabinet and frequency converter control cabinet

Abstract

According to the internal fixing device for the frequency converter control cabinet and the frequency converter control cabinet provided by the utility model, in the use process, the installation area is formed through the plurality of installation assemblies so as to install each component in the frequency converter control cabinet, and when the components are replaced or increased, the components can be replaced or increased. When the position of the mounting assembly needs to be adjusted to adapt to the size of the component, even if the mounting assembly moves up and down to the required position along the supporting assembly and is positioned through the positioning assembly, the size of each mounting area is adjusted to adapt to the size of the component. The internal fixing device for the frequency converter control cabinet solves the problems that in the prior art, when a component fixing frame is fixedly arranged and the sizes of newly added or replaced components are changed, the frequency converter control cabinet cannot adapt to the components with different sizes, so that the installation efficiency is reduced, and the installation cost is reduced. And even the overall component layout safety is influenced.

Description

Technical Field

[0001] This utility model belongs to the technical field of frequency converter control cabinets, specifically relating to an internal fixing device for frequency converter control cabinets and a frequency converter control cabinet. Background Technology

[0002] Variable frequency drive (VFD) control cabinets are common electrical equipment in industrial production. Inside, switching devices, measuring instruments, protective devices, and auxiliary equipment are assembled in enclosed or semi-enclosed metal cabinets or panels according to electrical wiring requirements. This allows for efficient control and comprehensive protection of the production system's operating status during production. Because VFD control cabinets contain a large number of components and wiring, the internal arrangement of these components must meet the requirements for normal operation of the power system, facilitate maintenance, and not endanger personal safety or the safety of surrounding equipment.

[0003] For example, patent application CN202222906123.4 discloses a medium-voltage frequency converter control cabinet. This patented medium-voltage frequency converter control cabinet improves the spatial layout and reduces the size of the cabinet, while also providing partitions to facilitate the installation and connection of internal components. However, because the component mounting brackets inside the medium-voltage frequency converter controller are fixed in position, and in actual use, components often need to be added or replaced. When the size of the added or replaced components changes, the medium-voltage frequency converter control cabinet becomes unable to accommodate components of different sizes, leading to reduced component installation efficiency and affecting the overall safety of the component layout. Utility Model Content

[0004] To address the technical problem in the background art where existing inverter control cabinet component mounting brackets are fixedly installed, and when component additions or replacements are frequently performed, the inverter control cabinet cannot accommodate components of different sizes when the added or replaced components change in size, resulting in reduced installation efficiency and even affecting the overall component layout safety, this utility model provides an internal fixing device for inverter control cabinets and an inverter control cabinet.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides an internal fixing device for a frequency converter control cabinet. The frequency converter control cabinet includes a cabinet body with a receiving space. The internal fixing device for the frequency converter control cabinet includes: two sets of positioning components, two sets of support components, and multiple sets of mounting components. The two sets of positioning components are vertically arranged in the receiving space and fixed to the inner wall of the cabinet body, with the two positioning components facing each other. The support components are vertically arranged in the receiving space, with the two support components facing each other. The mounting components are movably mounted on the support components and can move up and down along the support components. The mounting components are detachably connected to the positioning components.

[0007] Optionally, the support assembly includes a support rod, a support cap, and a mounting base;

[0008] The mounting base is located at the bottom of the accommodating space;

[0009] The lower end of the support rod is inserted into the mounting base;

[0010] The support cap is fitted onto the upper end of the support rod, and the support cap is movably connected to the top of the accommodating space;

[0011] The mounting component is movably mounted on the support rod, and the mounting component moves up and down along the support rod.

[0012] Optionally, a vertical sliding groove is provided on the cabinet near the support cap;

[0013] The support cap includes a cap body, a first elastic element, and a limiting block;

[0014] The cap is fitted onto the upper end of the support rod;

[0015] The first elastic element is fixedly installed on the upper side of the cap body and connected to the top of the receiving space;

[0016] The limiting block is fixedly installed on the side of the cap body, and the limiting block is inserted into the vertical slide groove.

[0017] Optionally, the cap body is further provided with a pull member, and the top of the receiving space is further provided with a through hole, the through hole corresponding to the pull member, and the pull member extending out of the through hole.

[0018] Optionally, the positioning component is a positioning plate, and the positioning plate is provided with a plurality of insertion holes, which are arranged sequentially from top to bottom on the positioning plate;

[0019] The mounting components include a mounting plate, a slider, and connectors;

[0020] The slider is sleeved on the support rod, and the slider moves along the support rod;

[0021] The mounting plate is fixedly connected to the slider and is used to mount components;

[0022] The connector is fixedly mounted on the mounting plate and positioned close to the positioning plate. The connector is detachably connected to the socket.

[0023] Optionally, the connector includes a plug rod, a first guide ring, and a second guide ring;

[0024] The first guide ring and the second guide ring are spaced apart on the mounting plate.

[0025] The plug rod is movably connected to the first guide ring and the second guide ring, and is inserted into the plug hole to achieve a detachable connection with the plug hole.

[0026] Optionally, the first guide ring is disposed close to the positioning plate, and the second guide ring is disposed away from the positioning plate;

[0027] The connector also includes a baffle and a limiting plate;

[0028] The baffle is located on the side of the second guide ring away from the positioning plate;

[0029] The limiting plate is disposed on the plug rod and is located between the first guide ring and the second guide ring;

[0030] A pull rod is also provided at one end of the plug rod near the baffle.

[0031] Optionally, the connector is further provided with a second elastic element, which is disposed between the second guide ring and the limiting plate, and the second elastic element is fixedly connected to both the second guide ring and the limiting plate.

[0032] Optionally, the mounting plate includes a base plate and a mounting groove, the base plate is fixedly connected to the slider, and the plug is disposed on the upper side of the base plate;

[0033] The mounting slot is fixedly mounted on the substrate and is used to mount components.

[0034] Secondly, this utility model also provides a frequency converter control cabinet, which includes a cabinet body and any of the above-mentioned internal fixing devices for frequency converter control cabinets.

[0035] The beneficial effects of this utility model are:

[0036] This invention provides an internal fixing device for a frequency converter control cabinet. During use, multiple mounting components form mounting areas to accommodate various components within the control cabinet. When components are replaced or added, requiring adjustment of the mounting components to fit the component size, the mounting components move vertically along support components to the desired position and are then positioned by positioning components. This adjusts the size of each mounting area to accommodate the component dimensions. The internal fixing device for a frequency converter control cabinet provided by this invention solves the technical problem in existing technologies where fixed component mounting brackets prevent the control cabinet from accommodating components of different sizes when new or replaced components are added or replaced, leading to reduced installation efficiency and even affecting the overall component layout safety. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the internal fixing device used in the frequency converter control cabinet of this utility model;

[0038] Figure 2 This is a schematic diagram of the support component in this utility model;

[0039] Figure 3 This is an exploded view of the support cap in this utility model;

[0040] Figure 4 This is a schematic diagram of the support cap in this utility model;

[0041] Figure 5 This is a schematic diagram of the mounting components in this utility model;

[0042] Figure 6 This is a schematic diagram of the connector in this utility model;

[0043] Figure 7 This is a schematic diagram of the mounting plate in this utility model.

[0044] The components are as follows: 1. Cabinet body; 11. Vertical slide groove; 12. Through hole; 2. Positioning component; 21. Insertion hole; 3. Support component; 31. Support rod; 32. Support cap; 321. Cap body; 322. First elastic element; 323. Limiting block; 324. Pulling component; 33. Mounting base; 4. Mounting component; 41. Mounting plate; 411. Base plate; 412. Mounting groove; 42. Slider; 43. Insertion component; 431. Insertion rod; 432. First guide ring; 433. Second guide ring; 434. Baffle; 435. Limiting plate; 436. Pull rod; 437. Second elastic element. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0047] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0048] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0049] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0050] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0051] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0052] Firstly, see [the following] Figures 1 to 7 This illustration shows a schematic diagram of an internal fixing device for a frequency converter control cabinet provided in this utility model. The internal fixing device is used for a frequency converter control cabinet, which includes at least a cabinet body 1. The internal fixing device includes at least two sets of positioning components 2, two sets of support components 3, and multiple sets of mounting components 4. The two sets of positioning components 2 are vertically arranged in the accommodating space and fixed to the inner wall of the cabinet body 1, with the two positioning components 2 arranged opposite to each other. The support components 3 are vertically arranged in the accommodating space, with the two support components 3 arranged opposite to each other. The mounting components 4 are movably arranged on the support components 3 and can move up and down along the support components 3. The mounting components 4 are detachably connected to the positioning components 2.

[0053] In this embodiment, an internal fixing device for a frequency converter control cabinet is provided. During use, multiple mounting components 4 form mounting areas to install various components within the frequency converter control cabinet. When components are replaced or added, and the position of the mounting components 4 needs to be adjusted to accommodate the component size, the mounting components 4 are moved up and down along the support component 3 to the required position, and positioned by the positioning component 2, thereby adjusting the size of each mounting area to accommodate the component size. The internal fixing device for a frequency converter control cabinet provided by this utility model solves the technical problem in the prior art where the component fixing bracket is fixed, and when the size of the added or replaced components changes, the frequency converter control cabinet cannot accommodate components of different sizes, leading to reduced installation efficiency and even affecting the overall component layout safety.

[0054] Optionally, refer to Figure 2 The support component 3 in this utility model includes a support rod 31, a support cap 32, and a mounting base 33; the mounting base 33 is disposed at the bottom of the accommodating space; the lower end of the support rod 31 is inserted into the mounting base 33; the support cap 32 is sleeved on the upper end of the support rod 31 and is movably connected to the top of the accommodating space; the mounting component 4 is movably disposed on the support rod 31 and moves up and down along the support rod 31.

[0055] In this embodiment, the mounting component 4 is movably mounted on the support rod 31. During use, the mounting component 4 can be moved up and down along the support rod 31 to adjust its position and achieve size adjustment of the mounting area. The positioning component 2 positions the mounting component 4. At the same time, the support cap 32 and the mounting base 33 limit the support rod 31 to prevent it from tilting or falling off, thereby improving the stability of the entire device.

[0056] Optionally, refer to Figure 3 and Figure 4 In this utility model, a vertical slide groove 11 is provided on the cabinet 1 near the support cap 32; the support cap 32 includes a cap body 321, a first elastic element 322 and a limiting block 323; the cap body 321 is sleeved on the upper end of the support rod 31; the first elastic element 322 is fixedly installed on the upper side of the cap body 321 and connected to the top of the accommodating space; the limiting block 323 is fixedly installed on the side of the cap body 321 and is inserted into the vertical slide groove 11.

[0057] In this embodiment, the first elastic element 322 provides downward pressure to the upper end of the support rod 31, making the support rod 31 more stable. At the same time, the support rod 31 can be dislodged from the cap 321 by pushing the cap body 321 upward and squeezing the first elastic element 322. This makes it easier to add or remove the mounting components 4 on the support rod 31. During this process, the vertical slide 11 and the limiting block 323 can limit the cap body 321, preventing the cap body 321 from tilting and facilitating operation.

[0058] For example, when a new installation component 4 needs to be added due to changes in work requirements, the cap 321 can be pushed upwards to compress the first elastic element 322 and cause the support rod 31 to disengage from the cap 321. The new installation component 4 can then be installed on the support rod 31. After the newly installed installation component 4 is positioned by the positioning component 2, the support rod 31 is placed under the cap 321, and the cap 321 is fitted onto the upper end of the support rod 31. Under the action of the first elastic element 322, the cap 321 completely presses against the upper end of the support rod 31, thus completing the work.

[0059] Optionally, refer to Figure 3 and Figure 4 In this utility model, the cap body 321 is also provided with a pull member 324, and the top of the accommodating space is also provided with a through hole 12. The through hole 12 corresponds to the pull member 324, and the pull member 324 extends out of the through hole 12.

[0060] In this embodiment, a pull member 324 is provided on the cap body 321. When it is necessary to add or remove the installation component 4 on the support rod 31, the pull member 324 can be pulled directly on the upper side of the cabinet 1 to drive the cap body 321 to move upward and squeeze the first elastic member 322, so that the support rod 31 can be dislodged from the cap body 321, thereby facilitating the addition or removal of the installation component 4 on the support rod 31.

[0061] Specifically, refer to Figure 3 The pull member 324 can be selected as a connecting rod with two hinged sections, or an integral pull rod, or other pull structures known to those skilled in the art.

[0062] Optionally, refer to Figure 5 In this utility model, the positioning component 2 is a positioning plate, and the positioning plate is provided with a plurality of insertion holes 21, which are arranged sequentially from top to bottom on the positioning plate; the mounting component 4 includes a mounting plate body 41, a slider 42, and a connector 43; wherein, the slider 42 is sleeved on the support rod 31, and the slider 42 moves along the support rod 31; the mounting plate body 41 is fixedly connected to the slider 42 for mounting components; the connector 43 is fixedly arranged on the mounting plate body 41 and is located close to the positioning plate, and the connector 43 is detachably connected to the insertion holes 21.

[0063] In this embodiment, the mounting plate 41 is positioned by connecting the connector 43 and the socket 21, and the positioning plate 41 is limited by the slider 42 moving along the support rod 31.

[0064] Optionally, refer to Figure 6 The connector 43 in this utility model includes a connector rod 431 and a first guide ring 432 and a second guide ring 433; the first guide ring 432 and the second guide ring 433 are spaced apart on the mounting plate 41; the connector rod 431 is movably connected to the first guide ring 432 and the second guide ring 433 and inserted into the socket 21 to achieve a detachable connection with the socket 21.

[0065] In this embodiment, the first guide ring 432 and the second guide ring 433 are combined to guide and limit the insertion rod 431. During use, by adjusting the insertion rod 431, the insertion rod 431 moves along the first guide ring 432 and the second guide ring 433, thereby inserting into or leaving the insertion hole 21. When the insertion rod 431 is inserted into the insertion hole 21, it positions the slider 42 and the mounting plate 41. When the insertion rod 431 leaves the insertion hole 21, it allows the slider 42 and the mounting plate 41 to move along the support rod 31, thereby adjusting the mounting plate 41 so that the mounting area can adapt to the installation requirements of the components.

[0066] Optionally, refer to Figure 6 In this utility model, the first guide ring 432 is disposed near the positioning plate, and the second guide ring 433 is disposed away from the positioning plate; the plug-in component 43 also includes a baffle 434 and a limiting plate 435; wherein, the baffle 434 is disposed on the side of the second guide ring 433 away from the positioning plate; the limiting plate 435 is disposed on the plug-in rod 431 and is located between the first guide ring 432 and the second guide ring 433; a pull rod 436 is also disposed on the end of the plug-in rod 431 near the baffle 434.

[0067] In this embodiment, a pull rod 436 is provided on the plug rod 431. During use, the plug rod 431 can be pulled and adjusted by the pull rod 436, so that the plug rod 431 can be inserted into or removed from the socket 21. The limiting plate 435 prevents the plug rod 431 from being inserted too deeply, and the baffle 434 blocks and limits the pull rod 436. The limiting plate 435 and the baffle 434 limit the plug rod 431 to prevent the plug rod 431 from falling off and causing risks.

[0068] Optionally, refer to Figure 6 The connector 43 in this utility model is also provided with a second elastic member 437. The second elastic member 437 is disposed between the second guide ring 433 and the limiting plate 435, and the second elastic member 437 is fixedly connected to both the second guide ring 433 and the limiting plate 435.

[0069] In this embodiment, a second elastic element 437 is directly provided between the second guide ring 433 and the limiting plate 435. The second elastic element 437, in combination with the limiting plate 435, provides pressure to the plug rod 431, ensuring that the plug rod 431 can be inserted into the socket 21 more safely and quickly during use.

[0070] It should be noted that the first elastic element 322 and the second elastic element 437 in this embodiment can be selected as springs or other elastic devices known to those skilled in the art, and no further limitation is made in this embodiment.

[0071] Optionally, refer to Figure 7 The mounting plate 41 in this utility model includes a base plate 411 and a mounting groove 412. The base plate 411 is fixedly connected to the slider 42, and the plug-in 43 is disposed on the upper side of the base plate 411. The mounting groove 412 is fixedly disposed on the base plate 411 and is used to mount components.

[0072] In this embodiment, the substrate 411 is fixedly connected to the slider 42. When adjusting the position of the mounting plate 41, the slider 42 drives the substrate 411 and the mounting slot 412 to move, thereby adjusting the mounting area and using the mounting slot 412 to install components.

[0073] Furthermore, in this embodiment, the substrate 411 and the mounting groove 412 can be selected as stainless steel plates or other materials known to those skilled in the art, and no further limitations are made in this utility model.

[0074] Secondly, this utility model also provides a frequency converter control cabinet, including a cabinet body and any of the above-mentioned internal fixing devices for frequency converter control cabinets.

[0075] It should be noted that the internal fixing device for the inverter control cabinet in this embodiment has the same structure as the internal fixing device for the inverter control cabinet in the previous embodiment, and the beneficial effects and usage process are also the same, so it will not be described again here.

[0076] The inverter control cabinet provided in this embodiment has the advantage of adjustable installation area inside the cabinet. During use, when it is necessary to replace or add components, the installation area can be adjusted to meet the requirements, thus providing better flexibility and adaptability.

[0077] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An internal fixing device for a frequency converter control cabinet, the frequency converter control cabinet comprising a cabinet body (1) having a receiving space therein, characterized in that, The internal fixing device for the frequency converter control cabinet includes: two sets of positioning components (2), two sets of support components (3), and multiple sets of mounting components (4); The two sets of positioning components (2) are vertically arranged in the accommodating space and fixed on the inner wall of the cabinet (1), with the two positioning components (2) arranged opposite to each other; The support component (3) is vertically arranged within the accommodating space, and the two support components (3) are arranged opposite to each other; The mounting component (4) is movably mounted on the support component (3), and the mounting component (4) moves up and down along the support component (3); The mounting component (4) is detachably connected to the positioning component (2).

2. The internal fixing device for a frequency converter control cabinet according to claim 1, characterized in that, The support assembly (3) includes a support rod (31), a support cap (32), and a mounting base (33); The mounting base (33) is disposed at the bottom of the receiving space; The lower end of the support rod (31) is inserted into the mounting base (33); The support cap (32) is sleeved on the upper end of the support rod (31), and the support cap (32) is movably connected to the top of the accommodating space; The mounting component (4) is movably mounted on the support rod (31), and the mounting component (4) moves up and down along the support rod (31).

3. The internal fixing device for a frequency converter control cabinet according to claim 2, characterized in that, A vertical slide groove (11) is provided on the cabinet (1) near the support cap (32); The support cap (32) includes a cap body (321), a first elastic element (322), and a limiting block (323); The cap (321) is fitted onto the upper end of the support rod (31); The first elastic element (322) is fixedly installed on the upper side of the cap body (321) and connected to the top of the receiving space; The limiting block (323) is fixedly installed on the side of the cap body (321), and the limiting block (323) is inserted into the vertical slide groove (11).

4. The internal fixing device for a frequency converter control cabinet according to claim 3, characterized in that, The cap body (321) is also provided with a pull member (324), and the top of the accommodating space is also provided with a through hole (12). The through hole (12) corresponds to the pull member (324), and the pull member (324) extends out of the through hole (12).

5. The internal fixing device for a frequency converter control cabinet according to claim 2, characterized in that, The positioning component (2) is a positioning plate, and the positioning plate is provided with a plurality of insertion holes (21), which are arranged sequentially from top to bottom on the positioning plate; The mounting assembly (4) includes a mounting plate (41), a slider (42), and a connector (43); The slider (42) is sleeved on the support rod (31), and the slider (42) moves along the support rod (31); The mounting plate (41) is fixedly connected to the slider (42) for mounting components; The connector (43) is fixedly mounted on the mounting plate (41) and located close to the positioning plate. The connector (43) is detachably connected to the socket (21).

6. The internal fixing device for a frequency converter control cabinet according to claim 5, characterized in that, The connector (43) includes a connector rod (431), a first guide ring (432), and a second guide ring (433); The first guide ring (432) and the second guide ring (433) are spaced apart on the mounting plate (41); The plug rod (431) is movably connected in the first guide ring (432) and the second guide ring (433) and inserted into the plug hole (21) to achieve a detachable connection with the plug hole (21).

7. The internal fixing device for a frequency converter control cabinet according to claim 6, characterized in that, The first guide ring (432) is disposed close to the positioning plate, and the second guide ring (433) is disposed away from the positioning plate; The connector (43) also includes a baffle (434) and a limiting plate (435); The baffle (434) is disposed on the side of the second guide ring (433) away from the positioning plate; The limiting plate (435) is disposed on the plug rod (431) and is located between the first guide ring (432) and the second guide ring (433); A pull rod (436) is also provided at one end of the plug rod (431) near the baffle (434).

8. The internal fixing device for a frequency converter control cabinet according to claim 7, characterized in that, The connector (43) is also provided with a second elastic element (437), which is disposed between the second guide ring (433) and the limiting plate (435), and the second elastic element (437) is fixedly connected to both the second guide ring (433) and the limiting plate (435).

9. The internal fixing device for a frequency converter control cabinet according to claim 5, characterized in that, The mounting plate (41) includes a base plate (411) and a mounting groove (412). The base plate (411) is fixedly connected to the slider (42), and the plug (43) is disposed on the upper side of the base plate (411). The mounting slot (412) is fixedly disposed on the substrate (411) for mounting components.

10. A frequency converter control cabinet, characterized in that, The frequency converter control cabinet includes a cabinet body (1) and an internal fixing device for the frequency converter control cabinet as described in any one of claims 1 to 9.

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