Indoor metal armored removable alternating current metal switch cabinet

Abstract

The invention relates to the technical field of intelligent power grid switch cabinets, in particular to an indoor metal armored movable alternating current metal switch cabinet which comprises a cabinet body and a movable frame slidably mounted in the cabinet body, and a plurality of positioning plates are arranged on the rear end face in the cabinet body from top to bottom in a linear array mode. Through cooperation of the mounting plate which can be independently disassembled and assembled and the matching rod, rapid unlocking, extraction and maintenance of a single function module are achieved, the power failure range of maintenance operation is remarkably reduced, the maintenance efficiency and the continuity of a power supply system are greatly improved, and the positioning plate can provide a positioning effect for the mounting plate; an efficient heat dissipation system can be formed through the air channel and the heat dissipation fins, forced heat dissipation is carried out on a heat source, local overheating in the cabinet is effectively eliminated, the integrated push-pull rod can push and pull the whole heavy moving frame in a labor-saving mode according to the lever principle, the lock rod limitation of the mounting plate can be quickly relieved, the mounting plate can be taken out, operation steps are simplified, and the working efficiency is improved. The integration level of the structure in the cabinet is optimized, and the space utilization rate and reliability are improved.

Description

Technical Field

[0001] This invention relates to the field of smart grid switchgear technology, and in particular to an indoor metal-clad withdrawable AC metal switchgear. Background Technology

[0002] A smart grid is a modern power system that integrates advanced sensing, communication, computing, and control technologies. It features interactivity, optimization, and compatibility, aiming to achieve safe, reliable, efficient, and flexible power supply. Metal-clad withdrawable AC switchgear, as a key distribution node in the smart grid, not only undertakes the basic functions of traditional power distribution, circuit protection, and electrical isolation, but more importantly, by integrating various intelligent sensing units, communication modules, and control devices, it becomes the core physical carrier supporting the grid to achieve advanced applications such as real-time status monitoring, remote programmed operation, and rapid fault location and isolation. It is a key infrastructure to ensure the observable, controllable, and automated operation of the power grid.

[0003] Currently, indoor metal-clad withdrawable AC metal switchgear still has the following problems in use: The electronic components inside traditional switchgear are usually directly fixed to the cabinet frame or use an integrated drawer design. When a single electronic module needs to be repaired, the entire movable frame must be completely pulled out or even disassembled, which leads to inconvenience in maintenance and affects the continuity of power supply; In addition, the heat dissipation inside the switchgear is mostly forced air cooling inside the cabinet, which makes it difficult to accurately direct the cold air to the power components with the most concentrated heat, resulting in the formation of local hot spots inside the cabinet, affecting the lifespan of components and operational stability. Moreover, the heat dissipation and locking systems inside the cabinet have single functions, resulting in a scattered layout and complex structure inside the cabinet, which leads to low space utilization and functional integration. Summary of the Invention

[0004] In view of the problems of indoor metal-clad withdrawable AC metal switchgear in the above or existing technologies, such as the need to pull it out as a whole for maintenance, suboptimal and uneven heat dissipation paths, and inconvenient module assembly and disassembly operations, this invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides an indoor metal-clad withdrawable AC metal switchgear, which is achieved by the following specific technical means: An indoor metal-armored removable AC metal switch cabinet includes a cabinet body and a movable frame that is slidably installed inside it. Several positioning plates are arranged in a linear array from top to bottom on the rear end face of the cabinet body. Air channels are opened inside the positioning plates, and heat dissipation fins are fixedly installed on the lower end face of the positioning plates. The mobile frame is equipped with mounting plates that correspond one-to-one with the positioning plates and are located above them for modular installation of electronic components. The front end of the mobile frame is slidably equipped with locking rods that are symmetrical on the left and right and correspond to the mounting plates. The locking rods restrict the forward and backward movement of the mounting plates within the mobile frame. When the mobile frame moves into the cabinet, the positioning plate and the corresponding mounting plate fit together to position the positioning plate. The air flowing in the air duct dissipates heat from the electronic components on the mounting plate, and the heat dissipation fins assist in heat dissipation. The front end of the mobile frame is equipped with a push-pull rod, and the rear end of the push-pull rod is slidably installed with symmetrical mating rods. The mounting plate is provided with a docking slide corresponding to the mating rods, and the lower end of the mobile frame is fixedly installed with a mating sleeve corresponding to the mating rods. The mating rod is inserted into the docking slide to release the locking rod restriction for the assembly and disassembly of individual mounting plates. The mating rod is also inserted into the mating sleeve to push the moving frame.

[0006] Preferably, the lower end of the movable frame is provided with several U-shaped frames, which are used to fix the movable frame to the cabinet by bolts. The movable frame is fixedly installed with symmetrical support frames in an X shape.

[0007] Preferably, the rear end face inside the cabinet is fixedly installed with a mounting bracket that corresponds one-to-one with and is fixedly connected to the positioning plate, and the heat dissipation fins are in a V-shaped layer.

[0008] Preferably, the upper surface of the positioning plate is provided with a plurality of No. 1 air holes connected to the air passage in an array, and a heat dissipation connecting pipe connected to the air passage and used for exchanging with the outside air is fixedly installed at the rear end of the positioning plate.

[0009] Preferably, the rear end of the positioning plate has a plurality of alignment grooves arranged in a linear array. An L-shaped alignment plate is hinged in the alignment groove by a torsion spring. A locking block is fixedly installed on the upper end face of the horizontal section of the L-shaped alignment plate, and a locking groove corresponding to the locking block is opened on the lower end face of the mounting plate.

[0010] Preferably, the movable frame is fixedly installed with symmetrical support plates on both sides. The upper surface of the support plates is provided with a limiting groove. The symmetrical support plates are slidably installed together by the limiting groove. The upper surface of the installation plates is provided with a second air hole corresponding to the first air hole.

[0011] Preferably, a sliding cylinder corresponding to a locking rod is fixedly installed through the movable frame, and a spring is fixedly installed between the sliding cylinder and the corresponding locking rod. A fixing plate corresponding to a sliding cylinder is fixedly installed inside the cabinet. A pressing block is fixedly installed on the side of the fixing plate near the corresponding sliding cylinder by a spring. The locking rod limits the installation plate before the movable frame enters the cabinet. After the movable frame enters the cabinet, the pressing block further presses the locking rod to further limit the installation plate.

[0012] Preferably, the upper surface of the positioning plate is rotatably mounted with symmetrical rollers via a bearing. The rollers are located between the mounting plate and the positioning plate, and provide a fulcrum for the engagement of the mounting plate's unlocking block and locking groove.

[0013] Preferably, a bidirectional screw rod is rotatably mounted inside the push-pull rod via a bearing, passing through the left and right symmetrical mating rods, and the bidirectional screw rod is threadedly connected to the left and right symmetrical mating rods.

[0014] Preferably, the mating rods are fixedly installed with a plurality of mating protrusions in a linear array on one side wall of their adjacent sides. The mating slide is provided with mating grooves that correspond one-to-one with the mating protrusions. The rear end of the mating rod is provided with a sloping groove, and a screw hole is provided through the sloping groove. The mating rod is inserted into the mating sleeve and fixedly connected by bolts and screw holes.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: by using an independently detachable mounting plate and a matching rod, it is possible to quickly unlock, pull out, and maintain individual functional modules, significantly reducing the power outage range for maintenance operations, greatly improving maintenance efficiency and the continuity of the power supply system. The positioning plate not only provides positioning for the mounting plate, but also forms a high-efficiency heat dissipation system through air ducts and heat dissipation fins to force heat dissipation from the heat source, effectively eliminating local overheating inside the cabinet and reducing the operating temperature of electronic components. Furthermore, the integrated push-pull rod can push and pull the entire heavy moving frame effortlessly using the lever principle when the matching rod is inserted into the matching sleeve. Within the matching rod docking slide, the locking rod restriction of the mounting plate can be quickly released and removed, simplifying the operation steps and optimizing the integration of the cabinet structure, improving space utilization and reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0017] Figure 1 This is a three-dimensional structural diagram of the cabinet of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the cabinet body of the present invention.

[0019] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the positioning plate and the movable frame of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the heat dissipation fins of the present invention.

[0021] Figure 5This is a cross-sectional three-dimensional structural diagram of the air passage on the positioning plate of the present invention.

[0022] Figure 6 This is a cross-sectional three-dimensional structural diagram of the mating part of the positioning plate and the mounting plate of the present invention.

[0023] Figure 7 This is a cross-sectional perspective view of the three-dimensional structure of the locking groove and locking block of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the push-pull rod and the mating rod of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the mating rod and the movable frame of the present invention.

[0026] In the diagram: 1. Cabinet; 2. Movable frame; 21. U-shaped frame; 22. Support frame; 3. Positioning plate; 301. Mounting frame; 31. Air duct; 311. No. 1 air hole; 312. Heat dissipation connecting pipe; 32. Heat dissipation fins; 33. L-shaped alignment plate; 331. Alignment groove; 332. Locking block; 34. Roller; 4. Mounting plate; 41. Support plate; 411. Limiting slide groove; 42. No. 2 air hole; 43. Locking rod; 431. Slide cylinder; 432. Extrusion block; 433. Fixing plate; 44. Locking groove; 45. Docking slide; 451. Docking groove; 5. Push-pull rod; 51. Matching rod; 511. Docking protrusion; 512. Two-way screw; 513. Screw hole; 52. Matching sleeve. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] The terms used in this invention, such as "upper," "lower," "left," "right," "middle," and "one," are merely for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0029] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 An indoor metal-armored removable AC metal switch cabinet includes a cabinet body 1 and a movable frame 2 that is slidably installed inside it. Several positioning plates 3 are arranged in a linear array from top to bottom on the rear end face of the cabinet body 1. Air ducts 31 are opened inside the positioning plates 3. Heat dissipation fins 32 are fixedly installed on the lower end face of the positioning plates 3.

[0030] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 The movable frame 2 is equipped with mounting plates 4 that correspond one-to-one with the positioning plates 3 and are located above them for modular installation of electronic components. The front end of the movable frame 2 is slidably equipped with locking rods 43 that are symmetrical and correspond to the mounting plates 4. The locking rods 43 restrict the mounting plates 4 from moving back and forth within the movable frame 2. When the movable frame 2 moves into the cabinet 1, the positioning plates 3 and the corresponding mounting plates 4 are attached to each other to position the positioning plates 3. The air flowing in the air passage 31 dissipates heat from the electronic components on the mounting plates 4, and the heat dissipation fins 32 assist in heat dissipation.

[0031] Please see Figure 2 , Figure 8 and Figure 9 The movable frame 2 is provided with a push-pull rod 5 at the front end, and symmetrical mating rods 51 are slidably installed at the rear end of the push-pull rod 5. The mounting plate 4 is provided with a docking slide 45 corresponding to the mating rod 51. The lower end of the movable frame 2 is fixedly installed with a mating sleeve 52 corresponding to the mating rod 51. The mating rod 51 is inserted into the docking slide 45 to release the locking rod 43 for disassembly and assembly of the individual mounting plate 4. The mating rod 51 is inserted into the mating sleeve 52 for pushing the movable frame 2.

[0032] In actual operation, the mobile frame 2 is a frame structure made of steel profiles, with pulleys at the bottom, so that the mobile frame 2 can smoothly enter and exit the cabinet 1 along a preset path. The heat dissipation fins 32 are fixed to the lower surface of the positioning plate 3 to increase the heat dissipation area. The mounting plate 4 has holes reserved for installing various electronic components, and the mounting plate 4 can be placed directly inside the mobile frame 2.

[0033] When the movable frame 2 is pushed into the cabinet 1, the positioning plate 3 and the corresponding mounting plate 4 will fit together. At this time, the air flowing in the air passage 31 can directly dissipate heat on the electronic components on the mounting plate 4. Meanwhile, the heat dissipation fins 32 on the lower end of the positioning plate 3 assist in heat dissipation, and the heat is dissipated through natural convection or forced convection.

[0034] When it is necessary to disassemble or assemble a single mounting plate 4, the operator inserts the mating rod 51 into the docking slide 45. At this time, the insertion of the mating rod 51 will retract the locking rod 43, releasing the restriction of the locking rod 43 on the mounting plate 4, thereby allowing the mounting plate 4 to move back and forth within the movable frame 2. At this time, simply bring the mating rods 51 on both sides close to the mounting plate 4, and the mounting plate 4 can be disassembled or installed individually by pushing and pulling the rod 5. When it is necessary to push the movable frame 2 into or out of the cabinet 1 as a whole, the mating rod 51 is directly inserted into the mating sleeve 52. At this time, the push and pull rod 5 and the mating rod 51 form a whole, and the movable frame 2 can be moved to slide within the cabinet 1 by operating the push and pull rod 5.

[0035] By using the modular mounting plate 4 and the air duct 31 for heat dissipation, the problems of inconvenient maintenance of electronic components and uneven heat dissipation in traditional switchgear are solved. At the same time, the push-pull rod 5 and the cooperating rod 51 work together to realize the individual disassembly and assembly of the mounting plate 4 and the overall pushing of the moving frame 2, which significantly improves the maintainability, heat dissipation efficiency and space utilization of the equipment, and provides a guarantee for the reliable operation of power distribution nodes in the smart grid.

[0036] Please see Figure 2 The lower end of the movable frame 2 is provided with several U-shaped frames 21. The U-shaped frames 21 are used to fix the movable frame 2 inside the cabinet 1 by bolts. The movable frame 2 is fixedly installed with symmetrical support frames 22 in an X shape.

[0037] In actual operation, the movable frame 2 is fixed inside the cabinet 1 by bolts and U-shaped frame 21, providing a reliable and adjustable fixing point for the movable frame 2 and preventing accidental displacement of the movable frame 2 during operation. The X-shaped support frame 22 enhances the structural rigidity and load distribution capacity of the movable frame 2, reduces the risk of structural deformation, and provides uniform and stable support for the electronic components on the mounting plate 4.

[0038] Please see Figure 3 , Figure 4 and Figure 5 The upper surface of the positioning plate 3 is provided with a number of No. 1 air holes 311 connected to the air passage 31 in an array. The rear end of the positioning plate 3 is fixedly installed with a heat dissipation connecting pipe 312 connected to the air passage 31 and used for exchanging with the outside air.

[0039] Please see Figure 3 and Figure 6 The movable frame 2 is fixedly installed with left and right symmetrical support plates 41. The upper surface of the support plate 41 is provided with a limiting groove 411. The left and right symmetrical support plates 41 are slidably installed with an installation plate 4 through the limiting groove 411. The upper surface of the installation plate 4 is provided with a second air hole 42 corresponding to the first air hole 311.

[0040] In actual operation, the first vent 311 guides the air flowing in the air passage 31 through the second vent 42, evenly and precisely guiding it to the electronic components mounted on the mounting plate 4, thereby directly cooling these heat-generating components and ensuring uniform heat dissipation coverage. This effectively avoids the problem of local hot spots caused by uneven airflow in traditional heat dissipation methods. The heat dissipation connecting pipe 312 is connected to an external small fan (not shown in the figure) to continuously introduce air into the air passage 31 for heat exchange with the electronic components, forming an efficient air circulation path. Combined with the V-shaped layered heat dissipation fins 32, the heat dissipation efficiency is improved, ensuring the long-term stable operation and service life of the electronic components on the mounting plate 4.

[0041] The symmetrical support plates 41 provide stable support and mounting base for the mounting plate 4, while the limiting slide groove 411 is used to guide and limit the sliding trajectory of the mounting plate 4. The limiting slide groove 411, together with the rollers (not shown in the figure) at the bottom of the mounting plate 4, ensures that the mounting plate 4 can slide smoothly in the moving frame 2. This allows the entire moving frame 2 to be completely pulled out or disassembled when it is necessary to repair or replace the electronic components on the mounting plate 4. The target mounting plate 4 can simply be slid out along the limiting slide groove 411, which simplifies maintenance operations, improves maintenance efficiency, and reduces the impact on power supply continuity.

[0042] Please see Figure 3 and Figure 7 The positioning plate 3 has several alignment grooves 331 arranged in a linear array at its rear end. An L-shaped alignment plate 33 is hinged in the alignment groove 331 by a torsion spring. A locking block 332 is fixedly installed on the upper surface of the horizontal section of the L-shaped alignment plate 33. A locking groove 44 corresponding to the locking block 332 is opened on the lower surface of the mounting plate 4.

[0043] In actual operation, when the moving frame 2 pushes the mounting plate 4 into the cabinet 1 and it fits against the positioning plate 3, the rear end of the mounting plate 4 will directly push the L-shaped alignment plate 33. Under the action of the torsion spring, the locking block 332 of the L-shaped alignment plate 33 can be aligned and inserted into the corresponding locking groove 44 on the lower end face of the mounting plate 4, so as to achieve precise positioning and locking. This ensures the firmness and precision of the fit between the mounting plate 4 and the positioning plate 3, and effectively prevents the mounting plate 4 from shifting or loosening due to vibration, impact or improper operation during the operation of the switch cabinet.

[0044] Furthermore, the mounting plate 4 is securely locked onto the positioning plate 3, and the air flowing in the air passage 31 can more effectively dissipate heat from the electronic components on the mounting plate 4, avoiding problems such as airflow leakage or reduced heat dissipation efficiency caused by unstable adhesion.

[0045] Please see Figure 2 , Figure 3 and Figure 6 The movable frame 2 is fixedly and continuously installed with a slide cylinder 431 corresponding to the locking rod 43. A spring is fixedly installed between the slide cylinder 431 and the corresponding locking rod 43. The cabinet 1 is fixedly installed with a fixing plate 433 corresponding to the slide cylinder 431. A pressing block 432 is fixedly installed on the side of the fixing plate 433 near the corresponding slide cylinder 431 by a spring. The locking rod 43 limits the mounting plate 4 before the movable frame 2 enters the cabinet 1. After the movable frame 2 enters the cabinet 1, the pressing block 432 further presses the locking rod 43 to further limit the mounting plate 4.

[0046] In actual operation, the locking rod 43 limits the mounting plate 4 before the moving frame 2 enters the cabinet 1. When the moving frame 2 is operated or transported independently of the cabinet 1, the locking rod 43 has already initially fixed the mounting plate 4 inside the moving frame 2 by the pre-tightening force of the spring.

[0047] When the movable frame 2 is fully pushed into the cabinet 1, the pressing block 432 fixed inside the cabinet 1 will contact the locking rod 43. Under the action of the spring, the pressing block 432 applies an additional pushing force to the locking rod 43, causing the locking rod 43 to extend further and block the mounting plate 4, thereby achieving a second limit on the mounting plate 4 and significantly improving the stability and anti-displacement ability of the mounting plate 4. This ensures the safe fixation of electronic components during the operation of the switch cabinet, effectively prevents equipment failure caused by the loosening of the mounting plate 4, and thus improves the reliability and maintenance safety of the equipment.

[0048] Please see Figure 4 The cabinet 1 has a mounting bracket 301 that corresponds to and is fixedly connected to the positioning plate 3 at the rear end. The heat dissipation fins 32 are in a V-shaped layer.

[0049] In actual operation, each positioning plate 3 of the mounting bracket 301 provides a supporting base, enhancing the stability of the positioning plate 3 within the cabinet 1 and ensuring precise fit between the positioning plate 3 and the corresponding mounting plate 4. In addition, the heat dissipation fins 32 are made of multiple stacked V-shaped metal plates with appropriate gaps between each layer, forming multiple V-shaped channels. This significantly increases the surface area of ​​the heat dissipation fins 32 in contact with the air and optimizes the airflow path between the fins, thereby improving the efficiency of heat transfer from the positioning plate 3 to the air. This effectively assists the air duct 31 in dissipating heat from the electronic components on the mounting plate 4. The heat dissipation fins 32 and the air duct 31 form a high-efficiency heat dissipation structure, further enhancing the heat dissipation capacity of the positioning plate 3.

[0050] Please see Figure 8 Inside the push-pull rod 5, a bidirectional screw 512 is rotatably installed through the left and right symmetrical mating rods 51 via a set bearing. The bidirectional screw 512 is threadedly connected to the left and right symmetrical mating rods 51.

[0051] Please see Figure 6 and Figure 8 The mating rods 51 have several mating protrusions 511 fixedly installed on one side wall of each other in a linear array. The mating slide 45 has mating grooves 451 that correspond one-to-one with the mating protrusions 511. The rear end of the mating rod 51 has a sloping groove, and a screw hole 513 is opened through the sloping groove. The mating rod 51 is inserted into the mating sleeve 52 and fixedly connected by bolts and screw holes 513.

[0052] In actual operation, when the mating rod 51 is inserted into the docking slide 45, the inclined groove can simultaneously squeeze the locking rods 43 on both sides in opposite directions, releasing the locking rods 43 from locking the mounting plate 4. When the mating rod 51 is inserted into the docking slide 45, the docking protrusion 511 on the mating rod 51 can engage with the docking groove 451 to achieve guidance, while avoiding misalignment or shaking of the mating rod 51 during the insertion process.

[0053] When the mating rod 51 is fully inserted into the docking slide 45, the double-acting screw 512 is rotated to make the two mating rods 51 move inward synchronously and clamp the mounting plate 4. At this time, the docking protrusion 511 and the docking groove 451 are engaged to increase the friction, so that the operator can directly pull the push-pull rod 5 to remove the corresponding mounting plate 4.

[0054] When the mating rod 51 is inserted into the mating sleeve 52, a bolt passes through the mating sleeve 52 and is screwed into the screw hole 513 to form a firm mechanical lock, thereby allowing the movable frame 2 to be moved directly.

[0055] Please see Figure 3 The upper end face of the positioning plate 3 is rotatably mounted with symmetrical rollers 34 through the set bearing. The rollers 34 are located between the mounting plate 4 and the positioning plate 3. The rollers 34 provide a fulcrum for the engagement of the locking block 332 and the locking groove 44 of the mounting plate 4.

[0056] In actual operation, the roller 34 provides support when the mounting plate 4 needs to be moved. When it is necessary to separate the locking block 332 on the mounting plate 4 from the locking groove 44 on the positioning plate 3, the operator can apply downward pressure to the end of the mounting plate 4 away from the locking block 332, and use the roller 34 as a fulcrum to use the lever principle to make the end of the mounting plate 4 with the locking block 332 tilt upward. This tilting action allows the locking block 332 to easily disengage from the locking groove 44, thereby releasing the locking state. At the same time, the L-shaped alignment plate 33 can carry the locking block 332 away under the action of the torsion spring, so that the mounting plate 4 can be pulled out smoothly, thereby improving the efficiency and convenience of disassembly and assembly of the mounting plate 4.

[0057] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An indoor metal-clad metal-enclosed movable AC metal switchgear cabinet comprising a cabinet body (1) and a moving frame (2) slidingly installed inside the cabinet body (1), characterized in that: The rear end face inside the cabinet body (1) is provided with a plurality of positioning plates (3) in a linear array from top to bottom, the positioning plate (3) is provided with an air channel (31) inside, and the lower end face of the positioning plate (3) is fixedly provided with a heat dissipation fin (32); The moving frame (2) is provided with an installation plate (4) corresponding to the positioning plate (3) and located above the positioning plate (3) for modular installation of electronic components, the front end of the moving frame (2) is slidably provided with a lock rod (43) which is symmetrical left and right and corresponds to the installation plate (4), the lock rod (43) limits the forward and backward movement of the installation plate (4) in the moving frame (2), the moving frame (2) is moved into the cabinet body (1) to position the positioning plate (3) and the corresponding installation plate (4) to position the positioning plate (3), and the air flowing in the air channel (31) is used for heat dissipation of the electronic components on the installation plate (4), and the heat dissipation fin (32) is used for heat dissipation. The front end of the moving frame (2) is provided with a push-pull rod (5), the rear end of the push-pull rod (5) is slidably provided with a symmetrical cooperation rod (51), the installation plate (4) is provided with a docking slide (45) corresponding to the cooperation rod (51), and the lower end of the moving frame (2) is fixedly provided with a cooperation sleeve (52) corresponding to the cooperation rod (51). The cooperation rod (51) is inserted into the docking slide (45) to release the limitation of the lock rod (43) to realize disassembly and assembly of the installation plate (4), and the cooperation rod (51) is inserted into the cooperation sleeve (52) to push the moving frame (2).

2. The indoor metal-clad draw-out AC metal switchgear cabinet as claimed in claim 1, characterized in that: The lower end of the moving frame (2) is provided with a plurality of U-shaped frames (21), the moving frame (2) is fixed in the cabinet body (1) by the bolts, and the moving frame (2) is fixedly provided with an X-shaped support frame (22) which is symmetrical up and down.

3. The indoor metal-clad draw-out AC metal switchgear cabinet as claimed in claim 1, characterized in that: The rear end face inside the cabinet body (1) is fixedly provided with an installation frame (301) corresponding to the positioning plate (3) and fixedly connected, and the heat dissipation fin (32) is V-shaped and layered.

4. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 3, wherein: The upper end face of the positioning plate (3) is provided with a plurality of first air holes (311) in communication with the air channel (31) in an array, and the rear end of the positioning plate (3) is fixedly provided with a heat dissipation connecting pipe (312) in communication with the air channel (31) and used for air exchange with the outside.

5. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 1, wherein: The rear end of the positioning plate (3) is provided with a plurality of alignment grooves (331) in a linear array, the alignment grooves (331) are hingedly provided with L-shaped alignment plates (33) through torsional springs, the horizontal section of the L-shaped alignment plate (33) is fixedly provided with a locking block (332), and the lower end face of the installation plate (4) is provided with a locking groove (44) corresponding to the locking block (332).

6. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 4, wherein: The moving frame (2) is fixedly provided with symmetrical support plates (41), the upper end face of the support plate (41) is provided with a limiting sliding groove (411), and the installation plate (4) is slidably installed on the support plates (41) through the limiting sliding grooves (411), and the upper end face of the installation plate (4) is provided with a second air hole (42) corresponding to the first air hole (311).

7. The indoor metal-clad draw-out AC metal switchgear cabinet of claim 1, wherein: The mobile frame (2) is fixed with a slide cylinder (431) corresponding to the lock rod (43), a spring is fixed between the slide cylinder (431) and the corresponding lock rod (43), a fixed plate (433) corresponding to the slide cylinder (431) is fixed in the cabinet body (1), the side close to the corresponding slide cylinder (431) of the fixed plate (433) is fixed with an extrusion block (432) through the spring, the lock rod (43) limits the mounting plate (4) before the mobile frame (2) enters the cabinet body (1), and the extrusion block (432) further extrudes the lock rod (43) to further limit the mounting plate (4) after the mobile frame (2) enters the cabinet body (1).

8. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 5, wherein: The upper end face of the positioning plate (3) is rotatably provided with left-right symmetrical rollers (34) through bearings, the rollers (34) are located between the mounting plate (4) and the positioning plate (3), and the rollers (34) provide a fulcrum for the mounting plate (4) to release the cooperation of the locking block (332) and the locking groove (44).

9. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 1, wherein: The push-pull rod (5) is rotatably provided with a bidirectional screw rod (512) penetrating through the left-right symmetrical cooperation rods (51) through bearings, and the bidirectional screw rod (512) is in threaded connection with the left-right symmetrical cooperation rods (51).

10. The indoor metal-clad draw-out AC metal-enclosed switchgear of claim 9, wherein: The side wall of the cooperation rod (51) close to each other is fixed with a plurality of butt protrusions (511) in a linear array mode, the butt slide (45) is provided with a butt groove (451) corresponding to the butt protrusion (511), the rear end of the cooperation rod (51) is provided with a bevel groove, a screw hole (513) is formed through the bevel groove, and the cooperation rod (51) is inserted into the cooperation sleeve (52) and is fixedly connected with the screw hole (513) through the bolt.

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