Partition isolation type low interference power distribution cabinet

Abstract

The application discloses a partition isolation type low-interference power distribution cabinet and relates to the technical field of power distribution cabinets.The power distribution cabinet is internally provided with two inner grooves, and the inner sides of the two inner grooves are provided with two groups of vertical screen mesh wires, each group of the vertical screen mesh wires is provided with a plurality of vertical screen mesh wires, and the inner sides of the plurality of vertical screen mesh wires are fixedly connected with a plurality of horizontal screen mesh wires in a cross mode.The mesh hole stretching mechanism is arranged in the application, so that when the temperature exceeds a threshold value, a sensor feeds back a signal to a PLC, triggers two adjacent groups of electric push rods to start, drives the horizontal screen mesh wires to stretch through a connecting plate, expands the mesh hole, and maintains a small aperture when the temperature is normal.The design solves the technical contradiction that a traditional fixed-aperture screen mesh cannot simultaneously achieve shielding efficiency and heat dissipation efficiency, realizes real-time dynamic adaptation of electromagnetic shielding performance and heat dissipation capacity, and takes into account the low-interference characteristics of the power distribution cabinet and the thermal stability of element operation.

Description

Technical Field

[0001] This invention relates to the field of power distribution cabinet technology, and in particular to a zone-isolated low-interference power distribution cabinet. Background Technology

[0002] With the rapid development of power electronics technology, distribution cabinets, as the core power distribution unit of the power system, are widely used in industrial production, intelligent buildings and other fields. In order to meet the needs of zonal installation of various electronic components, zonal isolation distribution cabinets have emerged. Through internal isolation design, they realize the independent layout of different functional modules, effectively reducing physical interference between modules.

[0003] Electromagnetic radiation is generated by electronic components in existing distribution cabinets during operation. Electromagnetic interference between different functional modules can directly disrupt the operational stability of sensitive electronic components. Therefore, electromagnetic shielding meshes are required in each isolation area to block the cross-regional propagation of electromagnetic waves and ensure the precise operation of components. Simultaneously, electronic components continuously release heat during operation. If this heat cannot be dissipated in time, the temperature inside the cabinet will accumulate and rise, leading to component performance degradation, shortened lifespan, and in severe cases, even burnout, threatening the overall operational safety of the distribution cabinet. Traditional partitioned distribution cabinets often use shielding meshes with fixed apertures. The design has inherent technical flaws: if a small-aperture shielding mesh is used to ensure electromagnetic shielding effectiveness, it will significantly hinder airflow, resulting in obstructed heat dissipation channels and significantly insufficient heat dissipation efficiency; conversely, if the mesh size is increased to improve heat dissipation capacity, it will directly weaken the attenuation effect of the shielding mesh on electromagnetic waves, causing a significant decrease in electromagnetic shielding effectiveness. Ultimately, this creates a technical bottleneck where "shielding effect and heat dissipation efficiency cannot be achieved simultaneously," making it difficult to meet the dual core requirements of modern power distribution cabinets for low interference and high heat dissipation. To address these issues, we designed a zoned isolation low-interference power distribution cabinet. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the core contradiction in the existing partitioned isolation low-interference distribution cabinet, where the traditional fixed aperture shielding mesh cannot simultaneously achieve both shielding effectiveness and heat dissipation efficiency, and thus cannot adapt to the dynamic requirements of components, this invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a zoned isolation low-interference power distribution cabinet, which is used to solve the following problem.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a partitioned isolation low-interference power distribution cabinet, the device comprising: a power distribution cabinet, wherein two inner grooves are formed on the inner side of the power distribution cabinet, and two sets of shielding mesh vertical wires are arranged on the inner side of each of the two inner grooves, each set of shielding mesh vertical wires having multiple wires, and multiple shielding mesh horizontal wires are fixedly connected to the inner side of the multiple shielding mesh vertical wires; a mesh stretching mechanism, the mesh stretching mechanism being arranged on the inner side of the inner grooves for stretching the mesh formed by the shielding mesh vertical wires and shielding mesh horizontal wires, the mesh stretching mechanism including two connecting rods slidably connected to the inner side of the inner grooves, one end of each of the two connecting rods being fixedly connected to a connecting seat, one side of the connecting seat being fixedly connected to a second connecting plate, and one side of the second connecting plate being fixedly connected to the two sets of shielding mesh horizontal wires; and a wire uniform force distribution mechanism, the wire uniform force distribution mechanism being arranged on one side of the shielding mesh vertical wires for uniformly distributing the force of the connecting seat.

[0008] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the mesh stretching mechanism further includes four protective shells fixedly connected to both sides of the power distribution cabinet, each of the four protective shells having an electric push rod installed on its inner side, and the output ends of the four electric push rods extending through to the inner side of the power distribution cabinet and fixedly connected to a connecting rod.

[0009] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, wherein: the uniform force-bearing mechanism of the wire includes a limiting rod fixedly connected to the outer wall of a portion of the vertical wires of the shielding mesh, and a sliding rod is fixedly connected to one end of each limiting rod. A sleeve is provided at one end of each sliding rod, and the first sleeve is fixedly connected to one side of the second connecting plate. The remaining sleeves are fixedly connected to the adjacent limiting rods. A limiting component is provided on the inner side of each sleeve.

[0010] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the limiting component includes two limiting grooves formed on the inner side of the sleeve, and two sliding strips are fixedly connected to the outer wall of the sliding rod, and the two sliding strips are respectively slidably connected to the inner side of the two limiting grooves.

[0011] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the wire uniform force mechanism further includes a tension spring installed at one end of the sliding rod and inside the sleeve, the elastic coefficient of the plurality of tension springs decreasing from the edge to the middle, and a rolling clamping assembly is provided at the top of the limiting rod.

[0012] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the rolling clamping assembly includes two sets of first connecting plates fixedly connected to the inner side of the inner groove, each set of first connecting plates has two plates, and each set of first connecting plates is rotatably connected to two sets of spur gears, each set of spur gears has multiple plates.

[0013] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the rolling clamping assembly further includes two fixed seats fixedly connected to the inner side of the inner groove, a drive plate fixedly connected to the top and bottom of the two fixed seats respectively, and a rotating wheel fixedly connected to the bottom of each spur gear through the first connecting plate.

[0014] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, wherein the top and bottom of each vertical wire of the shielding mesh are pressed against the inner side of two rotating wheels.

[0015] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, each of the drive boards is provided with two sets of locking teeth on both sides, and the two sets of locking teeth respectively mesh with an adjacent set of spur gears, and the bottom of the first connecting plate is provided with a unit that limits the mesh size.

[0016] As a preferred embodiment of the partitioned isolation low-interference power distribution cabinet of the present invention, the limiting mesh size unit includes a first telescopic rod and a second telescopic rod fixedly connected to the outer wall of the vertical wire of the shielding mesh, and the adjacent first telescopic rods and second telescopic rods are staggered, and the second telescopic rod is slidably connected to the inner side of the adjacent first telescopic rod.

[0017] The beneficial effects of this invention are:

[0018] 1. By setting up a mesh stretching mechanism, when the temperature exceeds the threshold, the sensor feeds a signal to the PLC, triggering the start of two adjacent electric push rods. Through the connecting plate, the shielding mesh is stretched laterally, causing the mesh to expand. When the temperature is normal, the small aperture is maintained. This design solves the technical contradiction of "shielding effectiveness and heat dissipation efficiency cannot be achieved simultaneously" in traditional fixed aperture shielding meshes. It realizes real-time dynamic adaptation of electromagnetic shielding performance and heat dissipation capacity, taking into account the low interference characteristics of the power distribution cabinet and the thermal stability of component operation.

[0019] 2. By setting up a wire uniform force-bearing mechanism, when the second connecting plate moves to both sides, the sleeve, sliding rod, and limiting rod work together to drive all the vertical wires of the shielding mesh to move synchronously. With the help of tension springs with decreasing elastic coefficients from both sides to the middle, the vertical and horizontal wires are uniformly stressed throughout the entire area. This ensures that all the vertical wires move synchronously and at equal intervals, and the mesh formed by the horizontal and vertical wires expands proportionally throughout the entire area. This ensures that the dynamic balance between electromagnetic shielding effectiveness and heat dissipation efficiency is stably maintained throughout the entire shielding mesh area.

[0020] 3. By setting up a rolling clamping component, the drive plate moves when the shielding mesh is stretched, thereby driving the top vertical wires and the middle area to stretch synchronously through the linkage of spur gears and rotating wheels. This completely avoids trapezoidal distortion with different widths at the top and bottom, thus ensuring the consistency of shielding effectiveness between the top and middle areas of the shielding mesh and fundamentally eliminating local shielding shortcomings caused by stretching deformation.

[0021] 4. By setting a limited mesh size unit, the first and second telescopic rods extend synchronously when the shielding mesh is stretched. At the maximum stroke, they form a rigid limit on the vertical wires, preventing excessive stretching and breakage. This effectively avoids the concentrated application of tensile force to the wire body. At the same time, the rigid limit constraint of the telescopic rods can stabilize the stress on the vertical wires before reaching the critical threshold, greatly reducing fatigue damage to the wires caused by long-term high stress and significantly extending the overall service life of the shielding mesh. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a cross-sectional view of the present invention.

[0025] Figure 3 This is a schematic diagram of the mesh stretching mechanism of the present invention.

[0026] Figure 4 This is a partial structural diagram of the mesh stretching mechanism of the present invention.

[0027] Figure 5 This is a schematic diagram of the uniform force distribution mechanism for the filaments according to the present invention.

[0028] Figure 6 This is a partial structural schematic diagram of the uniform force-bearing mechanism for the filament of the present invention.

[0029] Figure 7 This is a schematic diagram of the limiting rod structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the sliding rod structure of the present invention.

[0031] Figure 9 This is a schematic diagram of the rolling clamping assembly structure of the present invention.

[0032] Figure 10 This is an exploded view of the first connecting plate and drive plate components of the present invention.

[0033] In the diagram: 1. Distribution cabinet; 2. Protective shell; 3. Electric push rod; 4. Connecting rod; 5. Fixed base; 6. Connecting base; 7. Vertical wire of shielding mesh; 8. Second telescopic rod; 9. First connecting plate; 10. Spur gear; 11. Rotating wheel; 12. Second connecting plate; 13. Limiting rod; 14. Sliding rod; 15. Sleeve; 16. Tension spring; 17. Drive plate; 18. Horizontal wire of shielding mesh; 19. Inner groove; 20. Limiting slide groove; 21. Sliding strip; 22. First telescopic rod. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0036] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0037] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0038] Reference Figures 1-10A partitioned, low-interference power distribution cabinet is provided, comprising: a power distribution cabinet 1, wherein two inner grooves 19 are formed on the inner side of the power distribution cabinet 1, and two sets of vertical shielding mesh wires 7 are provided on the inner side of each inner groove 19, each set of vertical shielding mesh wires 7 having multiple wires, and multiple horizontal shielding mesh wires 18 are fixedly connected to the inner side of the multiple vertical shielding mesh wires 7; and a mesh stretching mechanism, which is set on the inner side of the inner grooves 19, for stretching the mesh formed by the vertical shielding mesh wires 7 and the horizontal shielding mesh wires 18. The mechanism includes two connecting rods 4 slidably connected to the inner side of the inner groove 19. One end of each connecting rod 4 is fixedly connected to a connecting seat 6. A second connecting plate 12 is fixedly connected to one side of the connecting seat 6, and one side of the second connecting plate 12 is fixedly connected to two sets of shielding mesh transverse wires 18. The mesh stretching mechanism also includes four protective shells 2 fixedly connected to both sides of the distribution cabinet 1. An electric push rod 3 is installed on the inner side of each of the four protective shells 2, and the output ends of the four electric push rods 3 all penetrate into the inner side of the distribution cabinet 1 and are fixedly connected to a connecting rod 4.

[0039] When the transverse wires 18 of the shielding mesh are pulled, it is equivalent to applying a tensile force along the short pitch direction of the mesh. The originally compact wire strands will undergo plastic deformation and spread laterally, thereby increasing the transverse size of the diamond mesh and increasing the overall mesh area. Since this technology is existing technology, it is not described in detail in this solution.

[0040] The electric push rod 3 is precisely controlled by a PLC controller and can perform intermittent start-stop actions according to preset logic. A temperature sensor is installed inside the inner tank 19 to collect the temperature parameters in real time. When the temperature of a certain inner tank 19 exceeds a preset threshold, the temperature sensor converts the real-time temperature signal into an electrical signal and feeds it back to the PLC controller. The PLC controller then triggers the two adjacent sets of electric push rods 3 of that inner tank 19 to start, and their output ends move synchronously to both sides of the first connecting plate 9. This causes the two second connecting plates 12 to expand synchronously outward, forming a uniform traction force on the transverse wires 18 of the shielding mesh. This causes the mesh size formed by the transverse wires 18 and the vertical wires 7 of the shielding mesh to expand synchronously. Under this mechanism, when the temperature of the inner tank is within the normal range, the shielding mesh maintains its initial... With its small aperture, the shielding mesh can effectively shield electromagnetic interference across the entire frequency band (especially providing superior shielding performance against high-frequency interference), meeting the low-interference operation requirements of sensitive electronic components. When the temperature inside the tank rises, the aperture of the shielding mesh automatically expands with the traction action, accelerating the flow of hot air inside the tank. This allows the heat generated by the components and the heat dissipation of the cabinet to quickly reach a dynamic balance. This design effectively solves the technical contradiction of "shielding effectiveness and heat dissipation efficiency being mutually exclusive" in traditional fixed-aperture shielding meshes, achieving real-time dynamic adaptation of electromagnetic shielding performance and heat dissipation capacity, and taking into account both the low-interference characteristics of the distribution cabinet and the thermal stability of component operation.

[0041] Reference Figures 2-7This invention provides a partitioned, isolated, low-interference power distribution cabinet with a wire uniform force-distribution mechanism. This mechanism is located on one side of the vertical wires 7 of the shielding mesh and is used to evenly distribute the force of the connecting seat 6. The wire uniform force-distribution mechanism includes limiting rods 13 fixedly connected to the outer wall of a portion of the vertical wires 7 of the shielding mesh. Each limiting rod 13 has a sliding rod 14 fixedly connected to one end. One end of each sliding rod 14 is provided with a sleeve 15. The first sleeve 15 is fixedly connected to one side of the second connecting plate 12, and the remaining sleeves 15 are connected to adjacent limiting rods 13. The rod 13 is fixedly connected, and a limiting component is provided on the inner side of the sleeve 15. The limiting component includes two limiting grooves 20 opened on the inner side of the sleeve 15. Two sliding strips 21 are fixedly connected to the outer wall of the sliding rod 14, and the two sliding strips 21 are slidably connected to the inner side of the two limiting grooves 20 respectively. The wire uniform force mechanism also includes a tension spring 16 installed at one end of the sliding rod 14 and the inner side of the sleeve 15. The elastic coefficient of the multiple tension springs 16 decreases from the edge to the middle. A rolling clamping component is provided on the top of the limiting rod 13.

[0042] When the two second connecting plates 12 move synchronously to both sides of the first connecting plate 9, they will cause the first sleeve 15 to move synchronously. Under the traction of the tension spring 16, the first sliding rod 14 is pulled and moves towards the second connecting plate 12, thereby causing the first limiting rod 13 connected to it to move in the same direction. Finally, it pulls the shielding mesh vertical wire 7 fixed on the limiting rod 13 to move synchronously. At the same time, the above displacement action will drive the second sleeve 15 in conjunction, thereby pulling the matching limiting rod 13 and the corresponding shielding mesh vertical wire 7 to move. This is repeated to achieve synchronous displacement of all shielding mesh vertical wires 7 fixedly connected to the limiting rod 13. Since the elastic coefficient of the tension spring 16 is from both sides towards the middle, The distribution of the shielding mesh exhibits a gradually decreasing gradient, thus allowing for a gradient tension of "larger on both sides and smaller in the middle" to be applied to the vertical wires 7. This, combined with the synchronous traction of the horizontal wires 18 by the second connecting plate 12, ensures uniform stress distribution across the entire area of ​​both the vertical and horizontal wires 7. This effectively avoids instantaneous overload, fatigue deformation, and even breakage caused by stress concentration in local wires, significantly improving the structural durability of the shielding mesh. Furthermore, this structure can drive all the vertical wires 7 to move synchronously and at equal intervals, enabling the mesh formed by the horizontal and vertical wires 7 to expand proportionally across the entire area. This ensures a dynamic balance between electromagnetic shielding effectiveness and heat dissipation efficiency, maintaining stable operation throughout the entire shielding mesh area.

[0043] Reference Figures 4-10A partitioned, low-interference power distribution cabinet is provided. The rolling clamping assembly includes two sets of first connecting plates 9 fixedly connected to the inner side of an inner groove 19. Each set of first connecting plates 9 has two plates, and each first connecting plate 9 has two sets of spur gears 10 rotatably connected to its inner side. Each set of spur gears 10 has multiple spur gears. The rolling clamping assembly also includes two fixed seats 5 fixedly connected to the inner side of the inner groove 19. A drive plate 17 is fixedly connected to the top and bottom of each fixed seat 5. Each spur gear 10 extends through to the bottom of the first connecting plate 9 and is fixedly connected to a rotating wheel 11. The top and bottom of each vertical wire 7 of the shielding mesh are pressed against the inner side of two rotating wheels 11; each drive plate 17 has two sets of teeth on both sides, and the two sets of teeth mesh with an adjacent set of spur gears 10 respectively; the bottom of the first connecting plate 9 is provided with a mesh size limiting unit; the mesh size limiting unit includes a first telescopic rod 22 and a second telescopic rod 8 fixedly connected to the outer wall of the vertical wire 7 of the shielding mesh, and the adjacent first telescopic rods 22 and second telescopic rods 8 are staggered, and the second telescopic rod 8 is slidably connected to the inner side of the adjacent first telescopic rod 22;

[0044] When the vertical wires 7 and horizontal wires 18 of the shielding mesh enter the stretched state, the second connecting plate 12 moves to both sides of the inner groove 19, simultaneously driving the drive plate 17 to move in the same direction. This drives the two sets of spur gears 10 on both sides of the drive plate 17 to rotate synchronously, and also drives the two sets of rotating wheels 11 to rotate accordingly. Under this linkage, the rotating wheels 11 can actively drive the vertical wires 7 of the shielding mesh at the top to move smoothly to both sides, so that the vertical wires 7 of the shielding mesh in the top area and the vertical wires 7 of the shielding mesh in the middle area maintain a completely consistent stretching rate and displacement, realizing synchronous stretching of the entire shielding mesh without difference. At the same time, the synchronous stretching action of the vertical wires 7 of the shielding mesh up and down can ensure that the mesh formed by the horizontal wires 18 and the vertical wires 7 of the shielding mesh always maintains a regular rectangular shape, completely avoiding trapezoidal distortion with different widths at the top and bottom, thereby ensuring the consistency of shielding effectiveness between the top and middle areas of the shielding mesh, and fundamentally eliminating local shielding shortcomings caused by stretching deformation.

[0045] When the vertical wires 7 and the horizontal wires 18 of the shielding mesh enter the tensile state simultaneously, the first telescopic rod 22 and the second telescopic rod 8 connected to them extend synchronously with the displacement of the vertical wires 7. When the telescopic rods extend to their maximum stroke, they form a rigid limiting constraint on the adjacent vertical wires 7, effectively preventing the vertical wires 7 from breaking or collapsing due to excessive stretching beyond their tensile limit, thus significantly reducing the failure rate of the shielding mesh. During the entire stretching process, the telescopic rods can simultaneously share part of the tensile load, which is equivalent to adding a load buffer structure to the vertical wires 7, effectively avoiding the concentrated action of tensile force on the wire body. At the same time, the rigid limiting constraint of the telescopic rods can make the stress on the vertical wires 7 of the shielding mesh tend to stabilize before reaching the critical threshold, significantly reducing fatigue damage caused by long-term high stress on the wires and significantly extending the overall service life of the shielding mesh.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A zoned isolation low-interference power distribution cabinet, characterized in that, include: The power distribution cabinet (1) has two inner slots (19) on its inner side, and two sets of shielding mesh vertical wires (7) are provided on the inner side of each of the two inner slots (19). Each set of shielding mesh vertical wires (7) is provided with multiple wires, and multiple shielding mesh horizontal wires (18) are fixedly connected to the inner side of the multiple shielding mesh vertical wires (7). A mesh stretching mechanism is provided on the inner side of the inner groove (19) for stretching the mesh composed of the vertical wires (7) and the horizontal wires (18) of the shielding mesh. The mesh stretching mechanism includes two connecting rods (4) slidably connected to the inner side of the inner groove (19). One end of each of the two connecting rods (4) is fixedly connected to a connecting seat (6). A second connecting plate (12) is fixedly connected to one side of the connecting seat (6), and one side of the second connecting plate (12) is fixedly connected to the two sets of horizontal wires (18) of the shielding mesh. The uniform force distribution mechanism is set on one side of the vertical wire (7) of the shielding mesh to uniformly distribute the force of the connecting seat (6).

2. The partitioned isolation low-interference power distribution cabinet according to claim 1, characterized in that: The mesh stretching mechanism also includes four protective shells (2) fixedly connected to both sides of the power distribution cabinet (1). An electric push rod (3) is installed on the inner side of each of the four protective shells (2), and the output ends of the four electric push rods (3) all penetrate into the inner side of the power distribution cabinet (1) and are fixedly connected to a connecting rod (4).

3. The partitioned isolation low-interference power distribution cabinet according to claim 2, characterized in that: The uniform force-bearing mechanism for the wire includes a limiting rod (13) fixedly connected to the outer wall of a portion of the vertical wire (7) of the shielding mesh, and a sliding rod (14) is fixedly connected to one end of each limiting rod (13). A sleeve (15) is provided at one end of each sliding rod (14), and the first sleeve (15) is fixedly connected to one side of the second connecting plate (12). The remaining sleeves (15) are fixedly connected to the adjacent limiting rod (13). A limiting component is provided on the inner side of each sleeve (15).

4. The partitioned isolation low-interference power distribution cabinet according to claim 3, characterized in that: The limiting assembly includes two limiting grooves (20) formed on the inner side of the sleeve (15), and two sliding strips (21) are fixedly connected to the outer wall of the sliding rod (14), and the two sliding strips (21) are slidably connected to the inner side of the two limiting grooves (20).

5. A partitioned isolation low-interference power distribution cabinet according to claim 3 or 4, characterized in that: The uniform force distribution mechanism for the filament also includes a tension spring (16) installed at one end of the sliding rod (14) and inside the sleeve (15). The elastic coefficients of the multiple tension springs (16) decrease from the edge to the middle. A rolling clamping assembly is provided on the top of the limiting rod (13).

6. The partitioned isolation low-interference power distribution cabinet according to claim 5, characterized in that: The rolling clamping assembly includes two sets of first connecting plates (9) fixedly connected to the inner side of the inner groove (19). Each set of first connecting plates (9) has two plates. Each set of first connecting plates (9) is rotatably connected to two sets of spur gears (10). Each set of spur gears (10) has multiple plates.

7. A partitioned isolation low-interference power distribution cabinet according to claim 6, characterized in that: The rolling clamping assembly also includes two fixed seats (5) fixedly connected to the inner side of the inner groove (19). A drive plate (17) is fixedly connected to the top and bottom of the two fixed seats (5) respectively. A rotating wheel (11) is fixedly connected to the bottom of the first connecting plate (9) through each of the spur gears (10).

8. A partitioned isolation low-interference power distribution cabinet according to claim 7, characterized in that: The top and bottom of each of the vertical wires (7) of the shielding mesh are pressed against the inside of the two rotating wheels (11).

9. A partitioned isolation low-interference power distribution cabinet according to claim 8, characterized in that: Each of the drive plates (17) has two sets of teeth on both sides, and the two sets of teeth mesh with an adjacent set of spur gears (10). The bottom of the first connecting plate (9) is provided with a unit that defines the mesh size.

10. A partitioned isolation low-interference power distribution cabinet according to claim 9, characterized in that: The defined mesh size unit includes a first telescopic rod (22) and a second telescopic rod (8) fixedly connected to the outer wall of the vertical wire (7) of the shielding mesh, and the adjacent first telescopic rod (22) and second telescopic rod (8) are staggered, and the second telescopic rod (8) is slidably connected to the inner side of the adjacent first telescopic rod (22).

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