Basic framework for power distribution cabinet frame and power distribution cabinet

Abstract

The invention discloses a basic framework for a power distribution cabinet frame and a power distribution cabinet, and relates to the technical field of power distribution cabinets. The device comprises a first framework, a second framework and a third framework, wherein the first framework comprises two first templates which are connected in a sliding mode; the second framework comprises two second mold plates which are connected in a sliding mode; the fixed keel is mounted between the first framework and the second framework, and a protruding plate is mounted on the fixed keel. The complete framework is formed by the framework I, the framework II, the fixed keel and the limiting keel, the lengths of the framework I and the framework II are changed by sliding the template I and the template II during assembly, so that the framework can adapt to different distribution boxes, and after adjustment is completed, the limiting rods on the limiting keel are inserted into the limiting holes, so that the framework I and the framework II can be assembled. And sliding between the first template and the second template is limited, when the first framework and the second framework need to be fixedly installed, the protruding plates are inserted into the grooves, connection between the first framework and the second framework is completed, and connection is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution cabinet, in particular to a basic framework for power distribution cabinet frame and a power distribution cabinet. BACKGROUND

[0002] The power distribution cabinet is a key equipment in the power distribution system, and its internal framework as a core support structure bears the important tasks of installing electrical components such as circuit breakers, contactors, PLCs, and carrying lines, ensuring electrical clearance and creepage distance. The performance of the framework structure is directly related to the overall strength, assembly efficiency, applicability and safety of the power distribution cabinet.

[0003] At present, the common power distribution box framework structure on the market is a modular installation framework of a power distribution box as disclosed in CN103594936A, which comprises a cross beam and a stand. The cross beam is provided with a modular hole, and a small screw hole is opened at the central position between each modular hole. The two ends of the cross beam are provided with stand connecting holes for fixed connection with the stand. The stand is provided with a modular hole, and a screw hole is opened between the modular holes. The two ends of the stand are provided with box connecting holes for fixed connection of the framework to the box of the power distribution box. The stand is two, located at the two ends of the cross beam. The cross beam is multiple, and each cross beam is fixedly connected with the modular hole or the screw hole of the stand through the stand connecting holes at both ends. This invention saves materials, is easy to assemble, and is flexible to install. It maximizes the use of the cross beam and the stand, effectively improving the work quality and efficiency.

[0004] From the above prior art, it can be seen that the existing power distribution box framework is installed by connecting the framework with bolts. At least one bolt is needed to connect each cross beam and the stand during installation by the bolt installation method. Therefore, multiple bolts are needed to complete the connection of the cross beam and the stand of the framework, which leads to low installation efficiency. In addition, the size of the framework is fixed, and the compatibility with different power distribution box shells is different.

[0005] Therefore, the present application proposes a basic framework for power distribution cabinet frame and a power distribution cabinet to improve the problem. SUMMARY

[0006] The present application aims to solve the problems in the background art by providing a basic framework for power distribution cabinet frame and a power distribution cabinet.

[0007] To achieve the above-mentioned purpose, the present application specifically adopts the following technical solutions: The basic framework for power distribution cabinet frame comprises: The first framework comprises two slidingly connected type plates; The second framework comprises two slidingly connected type plates; The fixed keel is installed between the skeleton one and the skeleton two, and the convex plate is installed on the fixed keel. The limiting keel is installed on the one type plate and the two type plate, and the limiting hole is opened on the limiting keel.

[0008] Further, the angle iron is installed on the fixed keel, and the fixed keel is in contact with the one type plate and the two type plate through the angle iron.

[0009] Further, the air slot is opened on the angle iron, the elastic plate is installed on the angle iron, the projection of the elastic plate on the angle iron blocks the air slot, the connecting spring is installed on the one type plate and the two type plate, and the inserting rod is installed on the free end of the connecting spring.

[0010] Further, the inclined surface is opened on one side of the angle iron, so that the inclined surface is in contact with the inserting rod when the convex plate is inserted into the groove.

[0011] Further, the limiting rod is rotatably installed on the limiting keel, the insertion slot is opened on the limiting rod, the elastic tooth block is installed in the limiting hole and inserted into the insertion slot, the tapered surface is opened on the end of the limiting rod, the guide inclined surface is opened on the side wall of the insertion slot, and the elastic tooth block is forced to elastically deform when the elastic tooth block is in contact with the guide inclined surface.

[0012] Further, the air cavity is opened on the one type plate, the two type plate and the fixed keel, the air pipe and the air inlet pipe are installed on the fixed keel and communicated with the air cavity, the air inlet pipe is directed to the gap between the skeleton one and the skeleton two, and the air pipe is directed to the gap away from the skeleton one and the skeleton two.

[0013] Further, the filter plate is installed on the free end of the air pipe, and the air pipe is in contact with the outside through the filter plate.

[0014] Further, the reinforcing hole is opened on the skeleton one and the skeleton two and communicated with the air cavity, and the reinforcing plate is installed on the skeleton one and the skeleton two and the reinforcing block is installed on the reinforcing plate and inserted into the reinforcing hole.

[0015] The application also provides a power distribution cabinet, which in some embodiments includes the basic skeleton of any of the above, and further includes a vertical end plate, a side plate and a frame plate, the frame plate is hinged with a door plate, the side plate and the frame plate are provided with a containing hole for inserting the air pipe, the vertical end plate includes a middle plate one, the side edge plate one is slidingly installed on both sides of the middle plate one, the side plate includes a middle plate two, and the side edge plate two is slidingly installed on both sides of the middle plate two.

[0016] Further, long slots are formed on the reinforcing plates, long blocks are installed on the side plates for being inserted into the long slots, mounting holes are formed on the reinforcing blocks, mounting rods are installed on the side plates and frame plates for being inserted into the mounting holes, vertical holes are formed on the reinforcing blocks and the mounting rods, and vertical rods are installed on the side plates for being inserted into the vertical holes.

[0017] The beneficial effects of the present application are as follows: 1、The present application forms a complete skeleton through the skeleton one, the skeleton two, the fixed keel and the limiting keel, changes the length of the skeleton one and the skeleton two through the sliding of the one type plate and the two type plate when assembling, so that the skeleton can be adapted to different distribution boxes, limits the sliding between the one type plate and the two type plate through the limiting rod on the limiting keel after adjustment, and inserts the protruding plate into the groove when fixing and installing the skeleton one and the skeleton two, so as to complete the connection between them, which is convenient when connecting. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present application; Figure 2 is an explosion view of the limiting keel structure of the present application; Figure 3 is a structural schematic diagram of the fixed keel of the present application; Figure 4 is a structural schematic diagram of the fixed keel of the present application; Figure 5 is a structural schematic diagram of the skeleton two of the present application; Figure 6 is a structural schematic diagram of the present application; Figure 7 is a structural schematic diagram of the present application; Figure 8 is a structural schematic diagram of the present application; Figure 9 is a structural schematic diagram of the present application Figure 1 . Figure 10 is a structural schematic diagram of the present application Figure 11 is a structural schematic diagram of the present application Figure 2 .

[0019] Reference numerals: 1. Frame 1; 101. Type 1 plate; 2. Frame 2; 201. Type 2 plate; 3. Fixing keel; 301. Protruding plate; 302. Groove; 4. Restricting keel; 401. Restricting hole; 402. Restricting rod; 5. Angle iron; 501. Hole; 502. Elastic plate; 503. Connecting spring; 504. Insertion rod; 6. Slot; 7. Elastic toothed block; 8. Air chamber; 9. Vent pipe; 10. Inlet 11. Air tube; 12. Filter plate; 13. Reinforcing hole; 14. Reinforcing plate; 15. Reinforcing block; 16. Vertical end plate; 17. Middle plate one; 18. Side plate one; 19. Side plate; 20. Middle plate two; 21. Side plate two; 22. Frame plate; 23. Door panel; 24. Receiving hole; 25. Long slot; 26. Long block; 27. Mounting hole; 28. Mounting rod; 29. ​​Vertical hole; 20. Vertical rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0021] like Figure 1 - Figure 7 As shown, the basic frame for the distribution cabinet frame proposed in some embodiments of the present invention includes: The frame 1 includes two slidingly connected plates 101. One plate 101 has a groove, and the other plate 101 has a block that is slidably inserted into the groove, so that the sliding between the two plates 101 is a guide rail sliding. Frame 2 includes two slidingly connected type 2 plates 201. One type 2 plate 201 has a groove, and the other type 2 plate 201 has a block that is slidably inserted into the groove, so that the sliding between the two type 2 plates 201 is a guide rail sliding. There is a gap between frame 1 and frame 2. When the distribution box is installed later, the gap is the inner cavity of the distribution box. A fixed keel 3 is installed between frame 1 and frame 2. A protruding plate 301 is installed on the fixed keel 3. A groove 302 for inserting the protruding plate 301 is installed on the type 1 plate 101 and type 2 plate 201. The width of the groove 302 is smaller than the width of the protruding plate 301. During installation, frame 1 and frame 2 are first positioned, then the protruding plate 301 is aligned with the groove 302, and the protruding plate 301 is inserted into the groove 302 by tapping or other means. During the process, because the two are different in width, the protruding plate 301 is inserted into the groove 302 to form an interference fit, thus initially connecting frame 1 and frame 2. The limiting keel 4 is provided with a limiting hole 401 on the one type plate 101 and the two type plate 201, and the limiting rod 402 for being inserted into the limiting hole 401 is installed on the limiting keel 4. When the device is installed, the length of the framework one 1 and the framework two 2 is adjusted by the guide rail sliding between the one type plate 101 and the two type plate 201. After the adjustment is completed, the limiting rod 402 on the limiting keel 4 is aligned with the limiting hole 401, and the limiting keel 4 is connected with the framework one 1 and the framework two 2. At this time, the limiting rod 402 is inserted into the limiting hole 401, and the sliding between the one type plate 101 and the two type plate 201 is limited by the shielding of the limiting rod 402 on the inner wall of the limiting hole 401. Since the length of the limiting keel 4 is constant, the tendency of the framework one 1 and the framework two 2 moving away from each other is limited. Since the framework one 1 and the framework two 2 are also connected by the fixed keel 3, a preliminary U-shaped structure is formed, and the rotation of the framework one 1 and the framework two 2 along the axis direction of the limiting rod 402 is limited, thereby increasing the stability of the device in use. Compared with the prior art, the complete framework is formed by the framework one 1, the framework two 2, the fixed keel 3 and the limiting keel 4. When assembling, the length of the framework one 1 and the framework two 2 is changed by sliding the one type plate 101 and the two type plate 201, so that the framework can be adapted to different distribution boxes. After the adjustment is completed, the limiting rod 402 on the limiting keel 4 is inserted into the limiting hole 401 to limit the sliding between the one type plate 101 and the two type plate 201. When it is necessary to fix and install the framework one 1 and the framework two 2, the protruding plate 301 is inserted into the groove 302 to complete the connection between them, which is more convenient when connecting.

[0022] As shown in Figure 6 , part of the structure of the fixed keel 3 is disclosed. In some embodiments, the angle iron 5 is installed on the fixed keel 3, and the fixed keel 3 is in contact with the one type plate 101 and the two type plate 201 through the angle iron 5. When the fixed keel 3 is installed with the framework one 1 and the framework two 2, the side wall of the angle iron 5 is in contact with the side wall of the framework one 1 and the framework two 2 when the protruding plate 301 is inserted into the groove 302, which further increases the contact area between the fixed keel 3 and the framework one 1 and the framework two 2, and increases the connection strength of the device.

[0023] As shown in Figure 4As shown, a portion of the structure on the angle iron 5 is disclosed. In some embodiments, a slot 501 is provided on the angle iron 5, and an elastic plate 502 is installed on the angle iron 5. The projection of the elastic plate 502 on the angle iron 5 covers the slot 501. A connecting spring 503 is installed on the first type plate 101 and the second type plate 201. An insertion rod 504 for inserting into the slot 501 is installed on the free end of the connecting spring 503. Holes are provided on the first frame 1 and the second frame 2. The connecting spring 503 is installed in the hole, and the insertion rod 504 is located outside the hole. When the fixing keel 3 is installed on the first frame... When the angle iron 5 is inserted into the groove 302, the side wall of the angle iron 5 abuts against the insertion rod 504, forcing the insertion rod 504 to retract into the channel, thus releasing the obstruction of the angle iron 5. When the protruding plate 301 is fully inserted into the groove 302, the angle iron 5 releases the obstruction of the insertion rod 504. At this time, the insertion rod 504 is located in the empty groove 501. The connecting spring 503 pushes the insertion rod 504 to reset. At this time, the insertion rod 504 is located in the empty groove 501. By the obstruction of the inner wall of the empty groove 501 by the insertion rod 504, the tendency of the fixed keel 3 to move away from the frame 1 and the frame 2 is further restricted. When disassembly is required, pressing the elastic plate 502 forces it to elastically deform into the slot 501, compressing the insertion rod 504 and forcing it to retract into the channel. This removes the obstruction of the angle iron 5 by the insertion rod 504, facilitating the subsequent disassembly of the fixing keel 3. Compared to an interference fit, installing the fixing keel 3 by inserting the insertion rod 504 into the slot 501 reduces wear on the device during disassembly and increases its service life.

[0024] like Figure 4 As shown, a portion of the structure on the fixed keel 3 is disclosed. In some embodiments, an inclined surface is provided on one side of the angle iron 5 so that when the protruding plate 301 is inserted into the groove 302, the inclined surface abuts against the insertion rod 504. When the fixed keel 3 is installed, the angle iron 5 is pressed against the insertion rod 504 by the inclined surface. The inclined surface guides the insertion rod 504 to retract into the channel better, increasing the feasibility of the device.

[0025] like Figure 2 and Figure 7As shown, a portion of the structure on the limiting rod 402 is disclosed. In some embodiments, the limiting rod 402 is rotatably mounted on the limiting keel 4. The limiting rod 402 has a slot 6, and an elastic toothed block 7 for insertion into the slot 6 is installed in the limiting hole 401. The end of the limiting rod 402 has a tapered surface, and the side wall of the slot 6 has a guide slope. When the elastic toothed block 7 abuts against the guide slope, it forces the elastic toothed block 7 to undergo elastic deformation. The elastic toothed block 7 is composed of two inclined plates and can undergo elastic deformation. When the limiting rod 402 is inserted into the limiting keel 4, the tapered end of the limiting rod 402 is used to press the elastic toothed block 7, which forces the elastic toothed block 7 to undergo elastic deformation. When the limiting rod 402 is fully inserted into the slot 6, the elastic toothed block 7 is reset and inserted into the slot 6. By blocking the inner wall of the slot 6 with the elastic toothed block 7, the tendency of the limiting rod 402 to move away from the limiting hole 401 is limited, further increasing the fixing effect of the limiting keel 4 on the skeleton 1 and the skeleton 2. When disassembly is required, the limiting rod 402 is rotated. During this process, the inner wall of the slot 6 gradually comes into contact with the elastic tooth block 7. Guided by the guide slope, the elastic tooth block 7 is forced to undergo elastic deformation again, forcing it to disengage from the slot 6. This allows the limiting keel 4 to be disassembled smoothly, increasing the convenience of disassembly.

[0026] like Figure 7 As shown, a portion of the structure on the first type plate 101, the second type plate 201, and the fixed keel 3 is disclosed. In some embodiments, air chambers 8 are provided on the first type plate 101, the second type plate 201, and the fixed keel 3. A vent pipe 9 and an air inlet pipe 10 communicating with the air chambers 8 are installed on the fixed keel 3. The air inlet pipe 10 faces the gap between the first frame 1 and the second frame 2, and the vent pipe 9 faces away from the gap between the first frame 1 and the second frame 2. When the device is in use, the inside of the distribution box can be connected to the outside through the air inlet pipe 10 and the vent pipe 9. It can also introduce hot air located in the distribution cabinet into the air chamber 8 and exhaust it to the outside through the vent pipe 9, thereby increasing the heat dissipation effect of the device. Furthermore, the air intake pipe 10 protrudes outside the fixed keel 3 and the limiting keel 4, and there is a gap between adjacent air intake pipes 10. During use, the wires can be straightened between the gaps, so that the air intake pipe 10 can act as a limiter for the line, increasing the practicality of the device.

[0027] like Figure 3As shown, the part structure on the vent pipe 9 is disclosed, in some embodiments, the filter plate 11 is installed on the free end of the vent pipe 9, the vent pipe 9 contacts the outside through the filter plate 11, the filter plate 11 is provided with a hole for airflow, when the device forms a distribution box, the inside and outside of the device exchange air flow, the filter plate 11 blocks the outside impurities, and the possibility of the outside impurities entering the distribution box is further increased, and the practicability of the device is increased.

[0028] As shown in Figure 5 and Figure 6 As shown, in some embodiments, the skeleton one 1 and the skeleton two 2 are provided with reinforcing holes 12 communicating with the air cavity 8, the skeleton one 1 and the skeleton two 2 are provided with reinforcing plates 13, the reinforcing plates 13 are provided with reinforcing blocks 14 inserted in the reinforcing holes 12, in use, the reinforcing plates 13 are installed on the skeleton one 1 and the skeleton two 2 by the reinforcing blocks 14 inserted in the reinforcing holes 12, the thickness of the skeleton one 1 and the skeleton two 2 is increased, the structural strength between the two is further increased, and the stability of the device in use is increased.

[0029] As shown in Figure 8 - Figure 11 As shown, the application also provides a power distribution cabinet, in some embodiments, the basic skeleton of any of the above, further comprising a vertical end plate 15, a side plate 16 and a frame plate 17, the frame plate 17 is hinged with a door plate 18, the side plate 16 and the frame plate 17 are provided with accommodating holes 19 for inserting the vent pipe 9, the accommodating holes 19 are connected with the vent pipe 9 in connection, the vent pipe 9 provides installation site for the side plate 16 and the frame plate 17, the stability of the side plate 16 and the frame plate 17 in use is increased, the vertical end plate 15 comprises an intermediate plate one 1501, the intermediate plate one 1501 is slidably installed with a side plate one 1502 on both sides, the side plate 16 comprises an intermediate plate two 1601, the intermediate plate two 1601 is slidably installed with a side plate two 1602 on both sides, the vertical end plate 15 is used for installation at the top and bottom of the power distribution cabinet, the frame plate 17 is installed on one side of the skeleton one 1 and the skeleton two 2, the side plate 16 has three, and the other three sides are enclosed, so that the inside of the distribution box can be completely enclosed, one of the side plate 16 and the frame plate 17 is a complete plate body, and the other two are composed of two side plates two 1602 and an intermediate plate two 1601, the side plate two 1602 and the side plate one 1502 are connected with the skeleton, and the length of the vertical end plate 15 and the side plate 16 can also be changed by sliding the side plate two 1602 and the side plate one 1502 on the intermediate plate two 1601 and the intermediate plate one 1501 respectively, so that the length of the vertical end plate 15 and the side plate 16 can be changed, so that they can adapt to the change of the length of the one type plate 101 and the two type plate 201, so that the device can shield the internal electrical elements in use, and the practicability of the device is increased.

[0030] As shown in Figure 8 -Figure 11 As shown, in some embodiments, a long slot 20 is formed on the reinforcing plate 13, a long block 21 for being inserted into the long slot 20 is installed on the side plate 16, the long block 21 is installed on the side plate two 1602, the long block 21 is a T-shaped block, the long slot 20 is a T-shaped slot, in use, the long block 21 is inserted into the long slot 20 by inserting in the vertical direction, the preliminary connection of the side plate 16 and the reinforcing plate 13 is completed, the mounting hole 22 is formed on the reinforcing block 14, the mounting rod 23 for being inserted into the mounting hole 22 is installed on the side plate 16 and the frame plate 17, the mounting rod 23 is located on the side plate 16 opposite to the frame plate 17, when the two are installed on the framework, the mounting rod 23 penetrates the side wall of the framework and is inserted into the air cavity 8, and is also inserted into the mounting hole 22, the mounting rod 23 shields the inner wall of the mounting hole 22, and the tendency of the reinforcing plate 13 away from the framework is limited; The vertical hole 24 is formed on the reinforcing block 14 and the mounting rod 23, the vertical rod 25 for being inserted into the vertical hole 24 is formed on the side plate one 1502, after the side plate 16 and the frame plate 17 are installed, the vertical end plate 15 is installed, one of the vertical end plates 15 is placed on the ground or other installation plane, at this time, the vertical rod 25 faces upward, the semi-finished frame is carried to the upper side of the vertical end plate 15 located at the bottom, so that the vertical rod 25 is inserted into the vertical hole 24, the vertical end plate 15 located at the top is covered to the top of the device, and then the vertical hole 24 of the vertical rod 25 located thereon is inserted, the vertical rod 25 shields the inner wall of the vertical hole 24, and then the tendency of the side plate 16 and the frame plate 17 away from the framework is limited, the stability of the device is increased, and when the frame is carried, since the air cavity 8 is formed on the framework, the weight of the device is greatly reduced, the carrying is facilitated, and the feasibility of the device is increased.

[0031] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A basic frame for a power distribution cabinet, characterized in that, include: Frame 1 (1) includes two slidingly connected type plates (101); Frame 2 (2) includes two slidingly connected type 2 plates (201); A fixed keel (3) is installed between the first frame (1) and the second frame (2). A protruding plate (301) is installed on the fixed keel (3). The first plate (101) and the second plate (201) are provided with grooves (302) for inserting the protruding plate (301). The limiting keel (4) has limiting holes (401) on the first type plate (101) and the second type plate (201). The limiting keel (4) is equipped with a limiting rod (402) for insertion into the limiting hole (401). The fixing keel (3) is equipped with an angle iron (5). The fixing keel (3) contacts the first type plate (101) and the second type plate (201) through the angle iron (5). The angle iron (5) has a slot (501). The angle iron (5) is equipped with an elastic plate (502). The projection of the elastic plate (502) on the angle iron (5) blocks the slot (501). The first type plate (101) and the second type plate (201) are equipped with a connecting spring (503). The free end of the connecting spring (503) is equipped with an insertion rod (504) for insertion into the slot (501).

2. The basic frame for the distribution cabinet rack according to claim 1, characterized in that, The angle iron (5) has a bevel on one side so that when the protruding plate (301) is inserted into the groove (302), the bevel abuts against the insertion rod (504).

3. The basic frame for the distribution cabinet frame according to claim 2, characterized in that, The limiting rod (402) is rotatably mounted on the limiting keel (4). The limiting rod (402) has a slot (6). An elastic toothed block (7) for insertion into the slot (6) is installed in the limiting hole (401). The end of the limiting rod (402) has a tapered surface. The side wall of the slot (6) has a guide slope. When the elastic toothed block (7) abuts against the guide slope, it forces the elastic toothed block (7) to undergo elastic deformation.

4. The basic frame for the distribution cabinet frame according to claim 3, characterized in that, Air chambers (8) are provided on the first type plate (101), the second type plate (201) and the fixed keel (3). The fixed keel (3) is equipped with a vent pipe (9) and an air inlet pipe (10) that communicate with the air chambers (8). The air inlet pipe (10) faces the gap between the first frame (1) and the second frame (2), and the vent pipe (9) faces away from the gap between the first frame (1) and the second frame (2).

5. The basic frame for the distribution cabinet frame according to claim 4, characterized in that, A filter plate (11) is installed on the free end of the vent pipe (9), and the vent pipe (9) contacts the outside world through the filter plate (11).

6. The basic frame for the distribution cabinet rack according to claim 5, characterized in that, The first frame (1) and the second frame (2) are provided with reinforcing holes (12) that communicate with the air chamber (8). The first frame (1) and the second frame (2) are provided with reinforcing plates (13). The reinforcing plates (13) are provided with reinforcing blocks (14) for insertion into the reinforcing holes (12).

7. A power distribution cabinet, comprising the basic frame according to any one of claims 1-6, characterized in that, It also includes a vertical end plate (15), a side plate (16) and a frame plate (17). A door panel (18) is hinged to the frame plate (17). The side plate (16) and the frame plate (17) are provided with receiving holes (19) for inserting a vent pipe (9). The vertical end plate (15) includes a middle plate (1501). Side plates (1502) are slidably installed on both sides of the middle plate (1501). The side plate (16) includes a middle plate (1601). Side plates (1602) are slidably installed on both sides of the middle plate (1601).

8. The power distribution cabinet according to claim 7, characterized in that, The reinforcing plate (13) has a long groove (20), and the side plate (16) is equipped with a long block (21) for insertion into the long groove (20). The reinforcing block (14) has an installation hole (22). The side plate (16) and the frame plate (17) are equipped with an installation rod (23) for insertion into the installation hole (22). The reinforcing block (14) and the installation rod (23) have vertical holes (24). The side plate (1502) has a vertical rod (25) for insertion into the vertical hole (24).

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