An electrical switch cabinet installation structure

Abstract

The present invention relates to the technical field of electrical switch cabinets, and specifically proposes an electrical switch cabinet installation structure, a mounting frame assembly; an armored busbar chamber, which is assembled inside the mounting frame assembly and can be connected to an external power supply busbar; the present invention divides the switch cabinet into three modular armored cabinets: a busbar chamber, a sub-line chamber, and a circuit breaker chamber by arranging L-shaped contacts, insulation grooves, insulation plates one and two, and changes the setting direction of external contacts of the busbar chamber and the sub-line chamber, changing the traditional horizontal setting to a vertical setting, so as to ensure that the installation grooves of the internal contacts of the busbar chamber and the sub-line chamber are filled with insulating oil to achieve primary insulation; when the circuit breaker chamber is split, the insulation plates one and the insulation plates two are automatically closed in the process to achieve secondary insulation and tertiary insulation, which not only ensures safety during maintenance, but also allows maintenance operations to be performed on the circuit breaker chamber and the sub-line chamber separately during maintenance, making the operation more convenient and quicker, and at the same time, the maintenance can be carried out away from the busbar chamber, which is also safer.

Description

Technical Field

[0001] The invention relates to the technical field of electric switch cabinets, and particularly proposes an electric switch cabinet installation structure. Background Art

[0002] An electrical switchgear refers to a complete set of power distribution equipment assembled by assembling primary and secondary equipment according to a certain circuit scheme. It is used to control and protect circuits and equipment, and can be roughly divided into two types: trolley type and fixed type. The fixed type has electrical components directly fixed in the cabinet body, with a relatively simple structure, fewer parts required in the manufacturing process, and a relatively simple process. However, when an electrical component in a fixed switchgear fails, the entire switchgear needs to be powered off, and then the faulty component needs to be repaired or replaced. The main components of the trolley-type switchgear, such as the circuit breaker, are installed on the trolley. During maintenance, you only need to pull out the faulty trolley and replace it with a spare trolley to restore power, which greatly shortens the power outage time and improves maintenance efficiency.

[0003] The trolley-type switchgear is roughly divided into three parts: the busbar area, the sub-line area and the trolley area. The switchgear is powered on and off by moving the trolley. In order to ensure the safety of maintenance, the two insulating plates inside the traditional trolley-type switchgear can isolate the external contacts when the trolley is moved. However, when the slide rails or valves inside the switchgear need to be replaced, the staff need to place another insulating plate to improve safety. However, the staff still need to operate close to the contacts, which still poses a high safety risk. At the same time, when the electrical components inside the sub-line area of the switchgear need to be inspected, the back panel of the switchgear needs to be disassembled, which is not only very inconvenient to operate, but also close to the busbar area, which poses a high safety risk. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides an electrical switch cabinet installation structure for solving the problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a mounting frame assembly; an armored busbar chamber, which is assembled inside the mounting frame assembly and can be connected to an external power supply busbar; an armored sub-line chamber, which is assembled inside the mounting frame assembly and located below the busbar chamber, and is provided with a variety of electrical components inside for controlling the output circuit; an armored circuit breaker chamber, which is assembled inside the mounting frame assembly and located above the sub-line chamber, located directly in front of the busbar chamber, and is used to connect the busbar chamber and the sub-line chamber, and an insulating layer is provided on the back of the circuit breaker chamber; the front of the busbar chamber and the sub-line chamber are both provided with an inward and concave insulating groove, the interior of the insulating groove is equipped with an external contact head placed vertically upward, the interior of the insulating groove is filled with insulating oil to submerge the external contact head, and the surface of the circuit breaker chamber is equipped with an L-shaped contact connected to the internal circuit of the switch cabinet; an insulating plate that can be automatically closed is installed at the position where the insulating groove is connected to the outside.

[0006] Preferably, the interior of the insulating slot is equipped with a laterally movable insulating plate 2, the insulating plate 2 is located above the external contact head, the cross-section of the insulating plate 2 is L-shaped, and the lower end edge of the insulating plate 1 abuts against the inner side of the insulating plate 2.

[0007] Preferably, both sides of the insulating plate 1 are movably mounted on the inner wall of the insulating slot via a rotating shaft, and a torsion spring 1 for closing the insulating plate 1 is sleeved on the surface of the rotating shaft.

[0008] Preferably, the surface of the second insulating plate is equipped with a guide block to prevent it from falling off, the inner wall of the insulating groove is provided with a corresponding guide groove, the guide block is clamped inside the guide groove, the surface of the second insulating plate is equipped with a tooth column, the interior of the insulating groove is provided with a slide rail groove, the tooth column is located inside the slide rail groove and moves, the interior of the busbar chamber and the sub-line chamber is equipped with a reset gear that drives the tooth column to move horizontally, the reset gear is movably installed through a circular shaft, and the surface of the circular shaft is sleeved with a torsion spring 2 for ensuring that the second insulating plate is in a closed state.

[0009] Preferably, some teeth of the reset gear protrude from the edges of the sub-line chamber and the busbar chamber, and a gear rod assembly is provided on the back of the circuit breaker chamber to drive the rotation of the reset gear; the gear rod assembly includes a long rod installed on the back of the circuit breaker chamber, and a plurality of grooves are equidistantly provided on the surface of the long rod, and the interior of the grooves are equipped with right-angled trapezoidal blocks, and the blocks are installed in the interior of the grooves through springs.

[0010] Preferably, the upper surface of the sub-line chamber is equipped with two guide rails 1, and the lower surface of the circuit breaker chamber is equipped with multiple symmetrically arranged rollers 1, the rollers 1 are movably located inside the guide rail 1, and a lifting component is installed on the surface of the guide rail 1.

[0011] Preferably, the lifting assembly includes a Y-shaped support frame, the guide column cross-section of the support frame is rectangular, and it is movable through the sub-line chamber housing, the interior of the sub-line chamber is equipped with two threaded rods, the two threaded rods are threadedly installed in the interior of the support frame, the surface of the threaded rod is sleeved with gear 1, the two gears are connected by a toothed belt transmission, the interior of the sub-line chamber is equipped with gear 2 through a movable shaft, the gear 1 and gear 2 are meshed, the interior of the sub-line chamber is equipped with a rocker, and the surfaces of the rocker and the movable shaft are sleeved with bevel gears that mesh with each other.

[0012] Preferably, the surfaces of the sub-line chamber and the busbar chamber are both equipped with a limit rod with an isosceles trapezoidal cross-section, the top of the limit rod is equipped with a guide rod with the same cross-section but a smaller proportion, the guide rod and the limit rod have a smooth transition surface, and the back of the circuit breaker chamber is provided with a limit groove adapted to the limit rod, and the bottom of the inner wall of the limit groove is provided with a positioning groove with a width adapted to the maximum width of the limit rod.

[0013] Preferably, the mounting frame assembly includes a back frame with multiple cross bars mounted on the surface, the top of the back frame is equipped with two symmetrically arranged top bars with an L-shaped cross section, the surface of the back frame is equipped with a positioning frame for placing the busbar chamber, and the bottom of the back frame is equipped with a base frame assembly.

[0014] Preferably, the chassis assembly includes two guide rails 2 symmetrically arranged on the surface of the back frame, and the lower surface of the sub-line chamber is equipped with a plurality of symmetrically arranged rollers 2, and the rollers 2 are movably placed inside the guide rails 2.

[0015] The above technical solution has the following advantages or beneficial effects: The present invention provides an electrical switch cabinet installation structure, which divides the switch cabinet into three modular armored cabinets: a busbar chamber, a sub-line chamber and a circuit breaker chamber by arranging L-shaped contacts, insulating grooves, insulating plates 1 and 2. The external contact setting direction of the busbar chamber and the sub-line chamber is changed, and the traditional horizontal setting is changed to a vertical setting to ensure that the installation grooves of the internal contacts of the busbar chamber and the sub-line chamber are filled with insulating oil to achieve primary insulation. When the circuit breaker chamber is split, the insulating plates 1 and 2 are automatically closed in the process to achieve secondary insulation and tertiary insulation, which not only ensures safety during maintenance, but also allows maintenance operations to be performed on the circuit breaker chamber and the sub-line chamber separately during maintenance, which makes the operation more convenient and quick. At the same time, maintenance can be done away from the busbar chamber, which is also safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0017] Figure 1It is a three-dimensional structural schematic diagram of an electrical switch cabinet installation structure provided by the present invention.

[0018] Figure 2 It is a three-dimensional structural diagram of the installation status of the busbar room and sub-line room.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the back of the circuit breaker chamber.

[0020] Figure 4 It is a planar cross-sectional view of the contact connection position when the circuit breaker chamber is energized.

[0021] Figure 5 It is a planar cross-sectional view of the contact connection position when the circuit breaker chamber is in the de-energized state.

[0022] Figure 6 yes Figure 5 A is an enlarged structural diagram of FIG.

[0023] Figure 7 yes Figure 6 Schematic diagram of the three-dimensional structure.

[0024] Figure 8 It is a schematic diagram of the split structure of the card block and the long rod.

[0025] Figure 9 yes Figure 1 Schematic diagram of the split structure.

[0026] Figure 10 It is a schematic diagram of the lifting structure of guide rail one.

[0027] In the figure: 1. Busbar chamber; 2. Sub-line chamber; 3. Circuit breaker chamber; 4. Insulation slot; 5. L-shaped contact; 6. Insulation plate 1; 7. Insulation plate 2; 8. Torsion spring 1; 9. Guide block; 10. Guide slot; 11. Tooth column; 12. Slide rail slot; 13. Reset gear; 14. Torsion spring 2; 15. Long rod; 16. Groove; 17. Block; 18. Spring; 19. Guide rail 1; 20. Roller 1; 21. Support frame; 22. Threaded rod; 23. Gear 1; 24. Toothed belt; 25. Gear 2; 26. Rocker; 27. Limit rod; 28. Guide rod; 29. Limit slot; 30. Positioning slot; 31. Back frame; 32. Push rod; 33. Guide rail 2; 34. Roller 2; 35. Positioning frame; 36. Bevel gear. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Figure 1 The invention relates to an installation structure of an electrical switch cabinet, comprising an armored busbar chamber 1, a sub-line chamber 2 and an armored circuit breaker chamber 3.

[0031] like Figure 2 and Figure 3 As shown, the front of the busbar chamber 1 and the sub-line chamber 2 are both provided with an inward and concave insulating groove 4. An insulating space is formed by spraying insulating material or laying insulating boards at this position. The external contacts inside the insulating groove 4 are all arranged vertically upward. The interior of the insulating groove 4 is filled with insulating oil to submerge the external contacts. The external power supply bus enters the interior of the busbar chamber 1 and is electrically connected to the external contact. A display instrument can be installed on the side of the busbar chamber 1 to display the power supply status of the busbar. Similarly, display instruments are also installed on the sides of the sub-line chamber 2 and the circuit breaker chamber 3 to display different power consumption data. The surface of the circuit breaker chamber 3 is equipped with an L-shaped contact 5 connected to the internal circuit of the switch cabinet. The L-shaped contact 5 is electrically connected to the external contacts of the sub-line chamber 2 and the busbar chamber 1.

[0032] like Figure 1 As shown, the busbar chamber 1, the sub-line chamber 2 and the circuit breaker chamber 3 are installed in combination. The sub-line chamber 2 is L-shaped. The busbar chamber 1 and the circuit breaker chamber 3 are placed above the sub-line chamber 2, and the circuit breaker chamber 3 is placed in front of the busbar chamber 1. The busbar chamber 1, the sub-line chamber 2 and the circuit breaker chamber 3 are all placed inside the mounting frame assembly.

[0033] like Figure 9 As shown, the mounting frame assembly includes a back frame 31 with multiple cross bars mounted on the surface. The backs of the busbar chamber 1 and the sub-line chamber 2 are both against the cross bars of the back frame 31 to limit the installation positions of the busbar chamber 1 and the sub-line chamber 2. The top of the back frame 31 is equipped with two symmetrically arranged top bars 32 with an L-shaped cross section. The length of the top bars 32 is the width of the busbar chamber 1, and the two sides of the top of the busbar chamber 1 are against the inner side of the top bars 32. The surface of the back frame 31 is equipped with a positioning frame 35 for placing the busbar chamber 1. The distance between the positioning frame 35 and the top bars 32 is the height of the busbar chamber 1. During assembly, the busbar chamber 1 is directly placed on the positioning frame 35 and pushed until it rests against the surface of the back frame 31.

[0034] Two symmetrically arranged guide rails 2 33 are assembled at the bottom of the back frame 31, and a plurality of symmetrically arranged rollers 2 34 are assembled on the lower surface of the sub-line chamber 2. The rollers 2 34 are movably placed inside the guide rails 2 33. During assembly, the rollers 2 34 are directly aligned with the position of the guide rails 2 33 to push the sub-line chamber 2 against the surface of the back frame 31.

[0035] like Figure 2As shown, the upper surface of the sub-line chamber 2 is equipped with two symmetrically arranged guide rails 19, and the lower surface of the circuit breaker chamber 3 is equipped with multiple symmetrically arranged rollers 20. The rollers 20 are movably located inside the guide rails 19. During assembly, the rollers 20 are pressed against the inside of the guide rails 19 and pushed so that the back of the circuit breaker chamber 3 is pressed against the front of the busbar chamber 1. The back of the circuit breaker chamber 3 is also made of insulating material to improve safety protection.

[0036] like Figure 2 and Figure 10 As shown, a Y-shaped support frame 21 is installed on the lower surface of the guide rail 19. The guide column cross-section of the support frame 21 is rectangular and is movable through the outer shell of the sub-line chamber 2. Two threaded rods 22 are assembled inside the sub-line chamber 2. The threaded rods 22 are fixed by bearings. The two threaded rods 22 are threadedly mounted on the inside of the support frame 21. The surface of the threaded rod 22 is fixedly sleeved with a gear 1 23. The two gears 1 23 are connected by a toothed belt 24. The inside of the sub-line chamber 2 is equipped with a gear 2 25 through a movable shaft, and one of the gears 1 23 is engaged with the gear 2 25. The inside of the sub-line chamber 2 is equipped with a rocker 26. One end of the rocker 26 is placed outside the sub-line chamber 2. The rocker 26 is installed through a bearing. The surface of the rocker 26 and the movable shaft are sleeved with bevel gears 36 that mesh with each other.

[0037] The staff drives the corresponding bevel gear 36 to rotate by rotating the rocker 26, and the meshing action of the other bevel gear 36 drives gear 2 25 to rotate, and gear 2 25 drives gear 1 23 to rotate. The toothed belt 24 drives the other gear 1 23 to rotate, thereby realizing the rotation of the two threaded rods 22. Since the cross-section of the guide column of the support frame 21 is rectangular, the contact position between the outer shell of the sub-line chamber 2 and the guide column of the support frame 21 limits the support frame 21, thereby realizing the lifting of the support frame 21 and indirectly realizing the lifting of the guide rail 19.

[0038] Figure 4 This is a schematic diagram of the structure of the state when the L-shaped contact 5 of the circuit breaker chamber 3 is electrically connected to the external contact. The interior of the insulation slot 4 is equipped with a laterally movable insulation plate 2 7 and a rotatable insulation plate 1 6. The cross-section of insulation plate 2 7 is L-shaped, and the lower edge of insulation plate 1 6 abuts the surface of the external contact. The insulating oil serves as the primary barrier, and the back plate of the circuit breaker chamber 3 serves as the secondary barrier.

[0039] Figure 5 This is a structural diagram of the non-connected state. Insulating plate 2 7 is located above the external contact, and the lower edge of insulating plate 1 6 is against the inner side of insulating plate 2 7. The insulating oil is the primary insulation barrier, insulating plate 2 7 is the secondary insulation barrier, and insulating plate 1 6 is the tertiary insulation barrier, thereby improving the safety of protection.

[0040] like Figure 2 and Figure 7As shown, both sides of the insulating plate 16 are movably mounted on the inner wall of the insulating groove 4 through a rotating shaft, and a torsion spring 18 is sleeved on the surface of the rotating shaft for closing the insulating plate 16. When the insulating plate 16 is not subjected to external force, it is in a completely vertical downward state. The surface of the insulating plate 27 is equipped with a guide block 9 to prevent it from falling off. The cross-section of the guide block 9 is an isosceles trapezoidal shape. The inner wall of the insulating groove 4 is provided with a corresponding guide groove 10, and the guide block 9 is clamped in the inside of the guide groove 10. The surface of the insulating plate 27 is equipped with a tooth column 11, and the inside of the insulating groove 4 is provided with a slide groove 12. The tooth column 11 is located inside the slide groove 12 and moves. The interior of the busbar chamber 1 and the sub-line chamber 2 is equipped with a reset gear 13 that drives the tooth column 11 to move horizontally. The reset gear 13 is movably mounted through a circular shaft, and the surface of the circular shaft is sleeved with a torsion spring 2 14 for ensuring that the insulating plate 27 is in a closed state. When the reset gear 13 is not subjected to force, the insulating plate 27 is in a closed state.

[0041] like Figure 3 、 Figure 7 and Figure 8 As shown, a long rod 15 is installed on the back of the circuit breaker chamber 3. The long rod 15 and the tooth column 11 are installed in a staggered manner so that there will be no obstruction when they move relative to each other. A plurality of grooves 16 are equidistantly provided on the surface of the long rod 15. The inside of the grooves 16 are each equipped with a right-angled trapezoidal block 17, which is installed inside the grooves 16 by a spring 18.

[0042] Figure 6 This is an enlarged structural diagram of the linkage between the tooth column 11, the reset gear 13 and the block 17 on the long rod 15. When the long rod 15 moves upward, the oblique edge of the block 17 abuts against the teeth of the reset gear 13, and the block 17 is squeezed into the inside of the groove 16 by the teeth of the reset gear 13 (the elastic force of the torsion spring 14 is greater than the elastic force of the spring 18). When the long rod 15 moves downward, the straight edge of the block 17 abuts against the teeth of the reset gear 13, and the block 17 causes the reset gear 13 to rotate, the tooth column 11 gradually moves to the right, and the insulating plate 2 7 also moves out of the inside of the insulating slot 4.

[0043] The overall operation process is: press the roller 20 against the inside of the guide rail 19 and push it so that the back of the circuit breaker chamber 3 is against the front of the busbar chamber 1. At this time, the L-shaped contact 5 squeezes the insulating plate 6, causing the inside of the insulating slot 4 to rotate and open until the back of the circuit breaker chamber 3 is tightly against the surface of the busbar chamber 1 and the sub-line chamber 2. At this time, there are three layers of insulation: insulating oil, insulating plate 2 7 and the back plate of the circuit breaker chamber 3. Then rotate the rocker 26 to gradually move the circuit breaker chamber 3 downward. During the downward movement, the block 17 on the long rod 15 squeezes and rotates the reset gear 13 until the tooth column 11 drives the insulating plate 2 7 to move out of the insulating slot 4. At this time, the circuit breaker chamber 3 continues to move downward until the L-shaped contact 5 docks with the external contact. During this process, the insulating oil and the back plate of the circuit breaker chamber 3 are insulated, ensuring the safety of the switch cabinet during use and maintenance.

[0044] In order to ensure that the circuit breaker chamber 3 can be closely attached to the surface of the busbar chamber 1 and the sub-line chamber 2, as shown in FIG. Figure 2 and Figure 3 As shown, the surfaces of the sub-line chamber 2 and the busbar chamber 1 are both equipped with a limiting rod 27 with an isosceles trapezoidal cross-section, and the top of the limiting rod 27 is equipped with a guide rod 28 with the same cross-section but a smaller proportion, and the surface of the guide rod 28 and the limiting rod 27 are smoothly transitioned. A limiting groove 29 adapted to the limiting rod 27 is provided on the back of the circuit breaker chamber 3, and a positioning groove 30 with a width adapted to the maximum width of the limiting rod 27 is provided at the bottom of the inner wall of the limiting groove 29. When the circuit breaker chamber 3 is against the surface of the busbar chamber 1 and the sub-line chamber 2, the limiting rod 27 and the guide rod 28 enter the interior of the positioning groove 30 to achieve pre-positioning. When the circuit breaker chamber 3 moves downward, the guide rod 28 first enters the interior of the limiting groove 29. In the process of gradual downward movement, the transition position of the guide rod 28 and the limiting rod 27 will calibrate the position of the circuit breaker chamber 3 until the limiting rod 27 is completely placed inside the limiting groove 29. At this time, the back of the circuit breaker chamber 3 is close to the front of the busbar chamber 1 and the sub-line chamber 2.

[0045] The present invention provides an electrical switch cabinet installation structure, in which the staff places the busbar chamber 1 on the positioning frame 35 and pushes it until it rests against the surface of the back frame 31, aligns the roller 2 34 with the position of the guide rail 2 33, and pushes the sub-line chamber 2 to rest against the surface of the back frame 31, aligns the roller 2 34 with the position of the guide rail 2 33, and pushes the sub-line chamber 2 to rest against the surface of the back frame 31. At this time, the L-shaped contact 5 squeezes the insulating plate 1 6, causing the inside of the insulating groove 4 to rotate open, and the limiting rod 27 and the guide rod 28 enter the inside of the positioning groove 30 to achieve pre-positioning. At this time, there are three layers of insulation of insulating oil, insulating plate 2 7 and the back plate of the circuit breaker chamber 3. Then, the rocker 26 is rotated to make the circuit breaker chamber 3 gradually move downward. During the downward movement, the guide rod 28 first enters the inside of the limiting groove 29. During the gradual downward movement, the transition position of the guide rod 28 and the limiting rod 27 will adjust the position of the circuit breaker chamber 3. The position is calibrated until the limit rod 27 is completely placed inside the limit groove 29. At this time, the back of the circuit breaker chamber 3 is tightly attached to the front of the busbar chamber 1 and the sub-line chamber 2, and continues to move downward. The block 17 on the long rod 15 squeezes and rotates the reset gear 13 until the tooth column 11 drives the insulating plate 2 7 to move out of the insulating groove 4. At this time, the circuit breaker chamber 3 continues to move downward until the L-shaped contact 5 is docked with the external contact. In this process, the insulating oil and the back plate of the circuit breaker chamber 3 are insulated, ensuring the safety of the switch cabinet during use and maintenance; when maintenance and disassembly are required, the circuit breaker chamber 3 is moved up first, and the insulating plate 2 7 is covered on the top of the external contact due to the force of the torsion spring 2 14. At this time, double insulation of the insulating oil and the insulating plate 2 7 is achieved, and then the circuit breaker chamber 3 is away from the insulating groove 4. The insulating plate 1 6 rotates downward due to the force of the torsion spring 1 8, thereby achieving triple insulation, ensuring safety during the maintenance process.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0048] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An electrical switch cabinet installation structure, characterized in that: include Mounting frame assembly; The armored busbar chamber is assembled inside the mounting frame assembly and can be connected to the external power supply busbar; The armored sub-line chamber is assembled inside the mounting frame assembly and is located below the busbar chamber. It is equipped with various electrical components for controlling the output circuit; An armored circuit breaker chamber is assembled inside the mounting frame assembly and is located above the sub-line chamber and directly in front of the busbar chamber, and is used to connect the busbar chamber and the sub-line chamber. An insulating layer is provided on the back of the circuit breaker chamber. The front of the busbar chamber and the sub-line chamber are both provided with an inward and concave insulation slot, the interior of the insulation slot is equipped with an external contact placed vertically upward, and the interior of the insulation slot is filled with insulating oil to submerge the external contact. The surface of the circuit breaker chamber is equipped with an L-shaped contact connecting to the internal circuit of the switch cabinet; An automatically closing insulating plate 1 is installed at the position where the insulating slot is connected to the outside; A second insulating plate that can move laterally is installed inside the insulating slot. The second insulating plate is located above the external contact. The cross-section of the second insulating plate is L-shaped, and the lower edge of the first insulating plate abuts against the inner side of the second insulating plate. The two sides of the insulating plate 1 are movably mounted on the inner wall of the insulating groove via a rotating shaft, and a torsion spring 1 for closing the insulating plate 1 is sleeved on the surface of the rotating shaft.

2. The electrical switch cabinet installation structure according to claim 1, characterized in that: The surface of the second insulating plate is equipped with a guide block to prevent it from falling off, the inner wall of the insulating groove is provided with a corresponding guide groove, the guide block is clamped inside the guide groove, the surface of the second insulating plate is equipped with a tooth column, the interior of the insulating groove is provided with a slide rail groove, the tooth column is located inside the slide rail groove and moves, the interior of the busbar chamber and the sub-line chamber is equipped with a reset gear that drives the tooth column to move, the reset gear is movably installed through a circular shaft, and the surface of the circular shaft is sleeved with a torsion spring 2 for ensuring that the second insulating plate is in a closed state.

3. The electrical switch cabinet installation structure according to claim 2, characterized in that: Part of the teeth of the reset gear protrudes from the edges of the sub-line chamber and the busbar chamber, and a gear rod assembly is provided on the back of the circuit breaker chamber to drive the rotation of the reset gear; The gear rod assembly includes a long rod installed on the back of the circuit breaker chamber. A plurality of grooves are equidistantly provided on the surface of the long rod. The insides of the grooves are all equipped with right-angled trapezoidal blocks, which are installed inside the grooves through springs.

4. The electrical switch cabinet installation structure according to claim 3, characterized in that: The upper surface of the sub-line chamber is equipped with two guide rails 1, and the lower surface of the circuit breaker chamber is equipped with multiple symmetrically arranged rollers 1, the rollers 1 are movably located inside the guide rail 1, and a lifting component is installed on the surface of the guide rail 1.

5. The electrical switch cabinet installation structure according to claim 4, characterized in that: The lifting assembly includes a Y-shaped support frame, the guide column cross-section of the support frame is rectangular, and it is movable through the sub-line chamber shell, the interior of the sub-line chamber is equipped with two threaded rods, the two threaded rods are threadedly installed in the interior of the support frame, the surface of the threaded rod is fixedly sleeved with gear 1, the two gears are connected by a toothed belt transmission, the interior of the sub-line chamber is equipped with gear 2 through a movable shaft, the gear 1 is meshed with gear 2, the interior of the sub-line chamber is equipped with a rocker, and the surfaces of the rocker and the movable shaft are sleeved with bevel gears that mesh with each other.

6. The electrical switch cabinet installation structure according to claim 1, characterized in that: The surfaces of the sub-line chamber and the busbar chamber are both equipped with a limiting rod with an isosceles trapezoidal cross-section. The top of the limiting rod is equipped with a guide rod with the same cross-section but a smaller proportion. The guide rod and the limiting rod have a smooth transition surface. The back of the circuit breaker chamber is provided with a limiting groove adapted to the limiting rod, and the bottom of the inner wall of the limiting groove is provided with a positioning groove with a width adapted to the maximum width of the limiting rod.

7. The electrical switch cabinet installation structure according to claim 1, characterized in that: The mounting frame assembly includes a back frame with multiple cross bars mounted on the surface, two symmetrically arranged top bars with L-shaped cross sections mounted on the top of the back frame, a positioning frame for placing the busbar chamber mounted on the surface of the back frame, and a base frame assembly mounted on the bottom of the back frame.

8. The electrical switch cabinet installation structure according to claim 7, characterized in that: The chassis assembly includes two guide rails 2 symmetrically arranged on the surface of the back frame, and the lower surface of the sub-line chamber is equipped with a plurality of symmetrically arranged rollers 2, which are movably placed inside the guide rails 2.

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