Combined ac low-voltage power distribution cabinet

Abstract

This invention discloses a combined AC low-voltage distribution cabinet, relating to the field of power control technology. It includes a distribution mechanism comprising a second cabinet box. The second cabinet box has an internal flip-up assembly and an external lifting assembly. The flip-up assembly includes an electrical control board, with slide rails slidably connected to both outer sides of the control board. By pulling down the horizontal handle on the back of the second cabinet box, the handle moves an L-shaped rod downwards. A vertical slot is created at the center of the back of the second cabinet box, causing the L-shaped rod to move the internally connected electrical control board downwards. The control board moves downwards along the slide rails inside the second cabinet box, causing the bottom of the control board to flip horizontally outwards along a support plate via pulleys. This flips the control board at a certain angle, bringing it to a horizontal position, achieving a vertical flipping effect and facilitating quick installation by maintenance personnel.

Description

Technical Field

[0001] This invention relates to the field of power control technology, specifically to a combined AC low-voltage distribution cabinet. Background Technology

[0002] A distribution cabinet is a general term for a motor control center. Distribution cabinets are used in situations where the load is relatively dispersed and there are fewer circuits; motor control centers are used in situations where the load is concentrated and there are more circuits. They distribute the electrical energy from a circuit of the upstream power distribution equipment to the nearest load. AC low-voltage distribution cabinets are suitable for AC 50Hz power distribution systems with a rated operating voltage of 380V and a rated operating current up to 3150A for power users such as power plants, substations, and factories and mines, and are used for the conversion, distribution, and control of electrical energy for power, lighting, and distribution equipment.

[0003] In the prior art, such as the Chinese patent application CN114640032A entitled "A Combined AC Low-Voltage Intelligent Distribution Cabinet", the main cabinet and the mezzanine plate are described. The inner wall of the main cabinet is provided with a power mechanism, the upper side of the inner wall of the main cabinet near the power mechanism is provided with a control mechanism, and the rear side of the inner wall of the main cabinet near the control mechanism is provided with an adjustment mechanism. The power mechanism includes a fixed frame fixedly installed on the inner wall of the main cabinet, a connecting frame fixedly installed on the rear side of the inner wall of the main cabinet near the fixed frame, and a drive shaft movably installed on the inner side of the connecting frame.

[0004] However, in the existing technology, the position of the circuit board inside the distribution cabinet is fixed. After the distribution cabinet is installed, when electrical components are added to the circuit board, the internal space of the circuit board is small and the depth of the control cabinet is large, which increases the difficulty of adding electrical components. Moreover, the space of the control cabinet is limited and the space utilization rate is low, which increases the time cost of subsequent installation. Summary of the Invention

[0005] The purpose of this invention is to provide a modular AC low-voltage distribution cabinet to solve the problems mentioned in the background art, such as the fixed position of the circuit board inside the distribution cabinet, the small internal space of the circuit board and the large depth of the control cabinet when adding electrical components after the distribution cabinet is installed, which increases the difficulty of adding electrical components. Moreover, the limited space of the control cabinet results in low space utilization and increases the time cost of subsequent installation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined AC low-voltage distribution cabinet, comprising a power distribution mechanism, the power distribution mechanism comprising a second cabinet box, the interior of the second cabinet box being provided with a flipping assembly, the exterior of the second cabinet box being provided with a lifting assembly, the flipping assembly comprising an electronic control board, both outer sides of the electronic control board being slidably connected to slide rails, the slide rails being fixedly connected to the inner sidewall of the second cabinet box, the lifting assembly comprising a horizontal handle and a limiting seat, the limiting seat being fixedly connected to the outer sidewall of the second cabinet box, the inner sidewall of the horizontal handle penetrating the limiting seat and being fixedly connected to an L-shaped rod, one end of the L-shaped rod penetrating the inner sidewall of the second cabinet box and being fixedly connected to the side of the electronic control board, a spring being fixedly connected between the L-shaped rod and the limiting seat, one end of the electronic control board being rotatably connected to a pulley, and a support plate being fixedly connected to the inner sidewall of the second cabinet box, the electronic control board being slidably connected to the support plate via the pulley;

[0007] Two protective mechanisms are provided above the top of the power distribution mechanism. The protective mechanism includes a first cabinet, and each of the two side walls of the first cabinet has a first positioning groove. A combination mechanism is provided between the protective mechanism and the power distribution mechanism. The combination mechanism includes a rotating rod and two U-shaped rods. Each of the two ends of the second cabinet has a second positioning groove. A connecting rod is rotatably connected between the outer side walls of the two U-shaped rods. One end of the U-shaped rod is slidably connected to the inner side wall of the first positioning groove, and the other end of the U-shaped rod is slidably connected to the inner side wall of the second positioning groove.

[0008] Preferably, the top of the second cabinet is provided with a moisture-proof mechanism, the moisture-proof mechanism including a first rotating seat, the top of the first rotating seat being rotatably connected to a connecting column.

[0009] Preferably, a second rotating seat is rotatably connected to the top of the connecting column, and a first baffle plate is fixedly connected to the top of the second rotating seat.

[0010] Preferably, the bottom surface of the first shielding plate is fixedly connected to a second hinge, and the first shielding plate is rotatably connected to a second shielding plate through the second hinge.

[0011] Preferably, a sealing mechanism is provided above the top of the protective mechanism, the sealing mechanism includes a rotating plate, and a first hinge is fixedly connected to the outer side wall of the first cabinet.

[0012] Preferably, the first cabinet is fixedly connected to the rotating plate via the first hinge, a round handle is fixedly connected to the top surface of the rotating plate, and a limit groove is formed at the bottom end of the rotating plate.

[0013] Preferably, the bottom surface of the rotating plate is provided with a sliding plate, the top surface of the sliding plate is fixedly connected to a limiting block, and the outer side wall of the limiting block is slidably engaged with the inner side wall of the limiting groove.

[0014] Preferably, the side wall of the rotating rod is provided with a sliding groove, the inner side wall of the sliding groove is slidably connected to a first rotating rod, and the bottom end of the rotating rod is fixedly connected to a second rotating rod.

[0015] Preferably, one end of the second rotating rod is rotatably connected to the side wall of the second cabinet, one end of the first rotating rod is rotatably connected to the side wall of the first cabinet, and an anti-slip handle is rotatably connected to the top of the rotating rod.

[0016] Preferably, a sliding block is slidably connected to the inner sidewall of the slide rail, and a fixed seat is rotatably connected to the center of the sidewall of the sliding block, and the sidewall of the fixed seat is rotatably connected to the sidewall of the electronic control board.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. In this invention, by pulling down the horizontal handle on the back of the second cabinet, the horizontal handle drives the L-shaped rod to move downward. A vertical slot is opened at the center of the back of the second cabinet, causing the L-shaped rod to drive the internally connected electrical control board to move downward. The electrical control board moves downward along the track of the slide rail inside the second cabinet, causing the bottom end of the electrical control board to flip horizontally outward along the support plate via pulleys. The electrical control board is flipped at a certain angle to a horizontal position, achieving the effect of vertical flipping of the electrical control board, thus facilitating quick installation by maintenance personnel.

[0019] 2. In this invention, the rotating rod is moved by holding the non-slip handle. One end of the rotating rod rotates around the second rotating rod, causing the first rotating rod to drive the first cabinet to move. When the rotating rod rotates to the horizontal direction, the first cabinet is located on both sides of the sealing mechanism. When the rotating rod rotates to the vertical direction, the first cabinet is located at the top of the second cabinet. By using the first cabinet and the second cabinet in combination, the usable space of the second cabinet is increased.

[0020] 3. In this invention, the sliding plate slides towards the middle position, so that the sliding plate and the rotating plate are horizontally unfolded. The sliding plate is kept in a stable position with the rotating plate by the limiting block and the limiting groove. The rotating plate protects the opening of the first cabinet box, and the two unfolded sliding plates protect the opening of the second cabinet box, thus achieving a moisture-proof effect for the cabinet box. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a combined AC low-voltage distribution cabinet according to the present invention;

[0022] Figure 2This is a schematic diagram of the bottom structure of the moisture-proof mechanism of a combined AC low-voltage distribution cabinet according to the present invention;

[0023] Figure 3 This is a schematic diagram of the protective mechanism and the combination mechanism of a combined AC low-voltage distribution cabinet according to the present invention;

[0024] Figure 4 This is a half-sectional structural diagram of the power distribution mechanism of a combined AC low-voltage distribution cabinet according to the present invention.

[0025] Figure 5 This is an exploded view of the protective mechanism of a combined AC low-voltage distribution cabinet according to the present invention;

[0026] Figure 6 This is an exploded view of the internal structure of the power distribution mechanism of a combined AC low-voltage distribution cabinet according to the present invention.

[0027] Figure 7 An exploded view of the sealing mechanism of a combined AC low-voltage distribution cabinet according to the present invention;

[0028] Figure 8 for Figure 5 A magnified view of the local structure at point A in the middle.

[0029] In the picture:

[0030] 1. Sealing mechanism; 11. Rotating plate; 12. Round handle; 13. Limiting groove; 14. Sliding plate; 15. Limiting block;

[0031] 2. Protective mechanism; 21. First cabinet; 22. First hinge; 23. First positioning slot;

[0032] 3. Power distribution mechanism; 31. Second cabinet box; 32. Second positioning slot;

[0033] 33. Lifting assembly; 331. Horizontal handle; 332. Limit seat; 333. L-shaped rod; 334. Spring;

[0034] 34. Flipping assembly; 341. Sliding block; 342. Fixing base; 343. Slide rail; 344. Electrical control board; 345. Pulley; 35. Support plate;

[0035] 4. Combination mechanism; 41. Rotating rod; 42. Anti-slip handle; 43. First rotating rod; 44. Second rotating rod; 45. U-shaped rod; 46. Connecting rod; 47. Slide groove;

[0036] 5. Moisture-proof mechanism; 51. First rotating seat; 52. Connecting column; 53. First baffle plate; 54. Second rotating seat; 55. Second baffle plate; 56. Second hinge. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Reference Figure 1-8 As shown: A combined AC low-voltage distribution cabinet includes a distribution mechanism 3, which includes a second cabinet 31. The second cabinet 31 has an internal flip-up assembly 34 and an external lifting assembly 33. The flip-up assembly 34 includes an electrical control board 344, with slide rails 343 slidably connected to both outer sides of the electrical control board 344. The slide rails 343 are fixedly connected to the inner wall of the second cabinet 31. The lifting assembly 33 includes a horizontal handle 331 and a limiting seat 332. The limiting seat 332 is fixedly connected to the outer wall of the second cabinet 31. An L-shaped rod 333 is fixedly connected to the inner wall of the horizontal handle 331 through the limiting seat 332. One end of the L-shaped rod 333 passes through the inner wall of the second cabinet 31 and is fixedly connected to the side of the electrical control board 344. A spring 334 is fixedly connected between the L-shaped rod 333 and the limiting seat 332. The electrical control board 34... One end of 4 is rotatably connected to a pulley 345. The inner side wall of the second cabinet 31 is fixedly connected to a support plate 35. The electrical control board 344 is slidably connected to the support plate 35 through the pulley 345. When the electrical control board 344 in the distribution cabinet needs to be equipped with electrical control components, the horizontal handle 331 on the back of the second cabinet 31 is pulled down. The horizontal handle 331 drives the L-shaped rod 333 to move down. A vertical slot is opened at the center of the back of the second cabinet 31, so that the L-shaped rod 333 drives the internally connected electrical control board 344 to move down. The electrical control board 344 moves down along the track of the slide rail 343 inside the second cabinet 31. The bottom end of the electrical control board 344 is horizontally flipped outward along the support plate 35 through the pulley 345. The electrical control board 344 is flipped at a certain angle and flipped to a horizontal position, which is convenient for the positioning and installation of electrical components.

[0039] Two protective mechanisms 2 are installed at the top of the power distribution mechanism 3. Each protective mechanism 2 includes a first cabinet 21, with first positioning grooves 23 on both side walls. A combination mechanism 4 is installed between the protective mechanism 2 and the power distribution mechanism 3. The combination mechanism 4 includes a rotating rod 41 and two U-shaped rods 45. Second positioning grooves 32 are provided at both ends of the second cabinet 31. A connecting rod 46 is rotatably connected between the outer side walls of the two U-shaped rods 45. One end of each U-shaped rod 45 is slidably connected to the inner side wall of the first positioning groove 23. The other end is slidably connected to the inner wall of the second positioning groove 32. When in use, two protective mechanisms 2 are set at the top of the power distribution mechanism 3. Some electrical components are installed in both protective mechanisms 2, which increases the installation space of the power distribution mechanism 3. When it is not necessary to repair or replace the components inside the second cabinet box 31, the two protective mechanisms 2 are rotated upwards so that the protective mechanisms 2 on both sides seal the front opening of the second cabinet box 31, which achieves the effect of moisture and dust prevention for the inside of the second cabinet box 31, and also increases the space utilization rate of the power distribution mechanism 3.

[0040] according to Figure 1 and Figure 2 As shown, a moisture-proof mechanism 5 is provided at the top of the second cabinet 31. The moisture-proof mechanism 5 includes a first rotating seat 51, and a connecting column 52 is rotatably connected to the top of the first rotating seat 51. A second rotating seat 54 is rotatably connected to the top of the connecting column 52, and a first shielding plate 53 is fixedly connected to the top of the second rotating seat 54. A second hinge 56 is fixedly connected to the bottom surface of the first shielding plate 53, and a second shielding plate 55 is rotatably connected to the first shielding plate 53 through the second hinge 56. In use, the connecting column 52 is vertically flipped upward along the inside of the first rotating seat 51, so that the first shielding plate 53 at the top of the connecting column 52 is placed above the second cabinet 31, achieving the effect of protecting the second cabinet 31 from rainwater. The second hinge 56 on the first shielding plate 53 is horizontally flipped half a turn, thereby increasing the protective area of ​​the first shielding plate 53 on the second cabinet 31 and providing moisture protection for the first cabinet 21 outside the second cabinet 31.

[0041] according to Figure 1 , Figure 5 and Figure 7As shown, a sealing mechanism 1 is provided above the top of the protective mechanism 2. The sealing mechanism 1 includes a rotating plate 11, and a first hinge 22 is fixedly connected to the outer wall of the first cabinet 21. The first cabinet 21 is fixedly connected to the rotating plate 11 through the first hinge 22. A round handle 12 is fixedly connected to the top surface of the rotating plate 11, and a limit groove 13 is provided at the bottom end of the rotating plate 11. A sliding plate 14 is provided on the bottom surface of the rotating plate 11. A limiting block 15 is fixedly connected to the top surface of the sliding plate 14. The outer side wall of the limiting block 15 is slidably engaged with the inner side wall of the limiting groove 13. The height of the first cabinet 21 is equal to the height of the second cabinet 31. When the first cabinet 21 moves horizontally to both sides of the second cabinet 31, the sliding plate 14 is slid towards the middle position, so that the sliding plate 14 and the rotating plate 11 are horizontally unfolded. The sliding plate 14 is kept in a stable position with the rotating plate 11 by the limiting block 15 and the limiting groove 13. The rotating plate 11 protects the opening of the first cabinet 21, and the two unfolded sliding plates 14 protect the opening of the second cabinet 31. A round handle 12 is fixedly connected to the top surface of the rotating plate 11, which facilitates the flipping of the rotating plate 11.

[0042] according to Figure 5-8 As shown, a groove 47 is provided on the side wall of the rotating rod 41. A first rotating rod 43 is slidably connected to the inner side wall of the groove 47, and a second rotating rod 44 is fixedly connected to the bottom end of the rotating rod 41. One end of the second rotating rod 44 is rotatably connected to the side wall of the second cabinet 31, and one end of the first rotating rod 43 is rotatably connected to the side wall of the first cabinet 21. An anti-slip handle 42 is rotatably connected to the top end of the rotating rod 41. A sliding block 341 is slidably connected to the inner side wall of the slide rail 343. A fixed seat 342 is rotatably connected to the center of the side wall of the sliding block 341. The side wall of the fixed seat 342 is rotatably connected to the side wall of the electrical control board 344. When it is necessary to combine the two protective mechanisms 2 and the power distribution mechanism 3, the rotating rod 41 is moved by holding the anti-slip handle 42. One end of the rotating rod 41 rotates around the second rotating rod 44, thereby changing the position of the first rotating rod 43. This causes the first rotating rod 43 to drive the first cabinet 21 to move. When the rotating rod 41 rotates to the horizontal direction, the first cabinet 21 is located on both sides of the sealing mechanism 1. When the rotating rod 41 rotates to the vertical direction, the first cabinet 21 is located at the top of the second cabinet 31. The first cabinet 21 and the second cabinet 31 are limited by the first positioning groove 23 and the second positioning groove 32. The first positioning groove 23 and the second positioning groove 32 are connected by the U-shaped rod 45, so that the first cabinet 21 always fits against the outer side wall of the second cabinet 31, preventing the first cabinet 21 from detaching.

[0043] The usage method and working principle of this device are as follows: When in use, the second cabinet box 31 is installed on the wall. When it is necessary to replace or repair the electrical components on the electrical control board 344 inside the second cabinet box 31, the anti-slip handle 42 is moved. The anti-slip handle 42 drives the rotating rod 41 to move, so that one end of the rotating rod 41 rotates around the second rotating rod 44, so that the first rotating rod 43 drives the first cabinet box 21 to move. Through the connection of the first positioning groove 23 and the second positioning groove 32 by the U-shaped rod 45, the rotating rod 41 is rotated to the horizontal direction, and the two first cabinet boxes 21 are located on both sides of the sealing mechanism 1.

[0044] Pulling down the horizontal handle 331 causes the L-shaped rod 333 to move downwards, which in turn causes the internally connected electrical control board 344 to move downwards. The electrical control board 344 then causes the fixed seat 342 to move downwards, which in turn causes the horizontal handle 331 to move within the slide rail 343. This causes the electrical control board 344 to move downwards along the track of the slide rail 343 inside the second cabinet 31. This causes the bottom of the electrical control board 344 to flip horizontally outwards along the support plate 35 via the pulley 345, allowing the electrical control board 344 to flip at a certain angle and reach a horizontal position.

[0045] The connecting column 52 is flipped vertically upward along the inside of the first rotating seat 51, so that the first shielding plate 53 at the top of the connecting column 52 is placed above the second cabinet box 31, thereby achieving the effect of protecting the second cabinet box 31 from rain. The second hinge 56 folded and stored on the first shielding plate 53 is flipped horizontally by half a turn to protect the top of the second cabinet box 31 and the first cabinet box 21 from rain.

[0046] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined AC low voltage switchgear cabinet comprising a power distribution mechanism (3), characterized in that: The power distribution mechanism (3) includes a second cabinet (31), inside which a flipping assembly (34) is provided, and on the outside of the second cabinet (31) a lifting assembly (33) is provided. The flipping assembly (34) includes an electrical control board (344), and slide rails (343) are slidably connected to both outer sides of the electrical control board (344). The slide rails (343) are fixedly connected to the inner side wall of the second cabinet (31). The lifting assembly (33) includes a horizontal handle (331) and a limiting seat (332). The limiting seat (332) is fixedly connected to the outer side wall of the second cabinet (31). The inner wall of the handle (331) passes through the limiting seat (332) and is fixedly connected to an L-shaped rod (333). One end of the L-shaped rod (333) passes through the inner wall of the second cabinet (31) and is fixedly connected to the side of the electronic control board (344). A spring (334) is fixedly connected between the L-shaped rod (333) and the limiting seat (332). A pulley (345) is rotatably connected to one end of the electronic control board (344). A support plate (35) is fixedly connected to the inner wall of the second cabinet (31). The electronic control board (344) is slidably connected to the support plate (35) through the pulley (345). Two protective mechanisms (2) are provided above the top of the power distribution mechanism (3). The protective mechanism (2) includes a first cabinet (21). The two side walls of the first cabinet (21) are provided with first positioning grooves (23). A combination mechanism (4) is provided between the protective mechanism (2) and the power distribution mechanism (3). The combination mechanism (4) includes a rotating rod (41) and two U-shaped rods (45). The two ends of the second cabinet (31) are provided with second positioning grooves (32). A connecting rod (46) is rotatably connected between the outer side walls of the two U-shaped rods (45). One end of the U-shaped rod (45) is slidably connected to the inner side wall of the first positioning groove (23), and the other end of the U-shaped rod (45) is slidably connected to the inner side wall of the second positioning groove (32). The side wall of the rotating rod (41) is provided with a sliding groove (47), the inner side wall of the sliding groove (47) is slidably connected to a first rotating rod (43), and the bottom end of the rotating rod (41) is fixedly connected to a second rotating rod (44). One end of the second rotating rod (44) is rotatably connected to the side wall of the second cabinet (31), one end of the first rotating rod (43) is rotatably connected to the side wall of the first cabinet (21), and the top end of the rotating rod (41) is rotatably connected to an anti-slip handle (42). The inner sidewall of the slide rail (343) is slidably connected to a sliding block (341), and a fixed seat (342) is rotatably connected at the center of the sidewall of the sliding block (341). The sidewall of the fixed seat (342) is rotatably connected to the sidewall of the electronic control board (344).

2. The combined AC low-voltage distribution switchgear according to claim 1, characterized in that: The top of the second cabinet (31) is provided with a moisture-proof mechanism (5), which includes a first rotating seat (51) and a connecting column (52) is rotatably connected to the top of the first rotating seat (51).

3. A combined AC low-voltage distribution cabinet according to claim 2, characterized in that: The top end of the connecting column (52) is rotatably connected to a second rotating seat (54), and the top end of the second rotating seat (54) is fixedly connected to a first baffle plate (53).

4. The combined AC low-voltage distribution switchgear according to claim 3, characterized in that: The bottom surface of the first shielding plate (53) is fixedly connected to a second hinge (56), and the first shielding plate (53) is rotatably connected to a second shielding plate (55) through the second hinge (56).

5. The combined AC low-voltage distribution switchgear according to claim 1, characterized in that: A sealing mechanism (1) is provided above the top of the protective mechanism (2). The sealing mechanism (1) includes a rotating plate (11), and a first hinge (22) is fixedly connected to the outer wall of the first cabinet (21).

6. The combined AC low-voltage distribution switchgear according to claim 5, characterized in that: The first cabinet (21) is fixedly connected to the rotating plate (11) via the first hinge (22). A round handle (12) is fixedly connected to the top surface of the rotating plate (11), and a limit groove (13) is opened at the bottom end of the rotating plate (11).

7. A combined AC low voltage switchboard according to claim 6, characterized in that: The bottom surface of the rotating plate (11) is provided with a sliding plate (14), and the top surface of the sliding plate (14) is fixedly connected to a limiting block (15). The outer side wall of the limiting block (15) is slidably engaged with the inner side wall of the limiting groove (13).

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