Capacitor with modular mounting bracket

Abstract

This invention discloses a capacitor with a modular mounting bracket, comprising two portal-shaped support frames, with a plurality of low-voltage capacitors detachably mounted between the top ends of the two portal-shaped support frames; a positioning mechanism, arranged side-by-side at the top ends of the portal-shaped support frames, the positioning mechanisms at the top ends of the two portal-shaped support frames cooperating; and a fixing frame, fixedly connected to the bottom end of the portal-shaped support frames, with an adjusting mechanism provided between the two fixing frames. This invention, through the coordinated use of an adjusting head, drive shaft, worm gear, worm wheel, driving gear, driven gear, connecting rod, and clamping column, achieves simultaneous clamping or release of all low-voltage capacitors, enabling quick disassembly and assembly of low-voltage capacitors during maintenance without the need to disassemble each bolt individually. This solves the problem in existing technologies where the limited space in the distribution cabinet leads to difficulties in disassembling internal bolts and time-consuming replacements.

Description

Technical Field

[0001] This invention relates to the field of capacitors, specifically to a capacitor with a modular mounting bracket. Background Technology

[0002] In power distribution systems, low-voltage capacitors are commonly used for reactive power compensation and power factor correction to improve power quality. To facilitate centralized arrangement and maintenance within the distribution cabinet, multiple low-voltage capacitors are typically mounted side-by-side on dedicated mounting brackets, which are then fixedly connected to the internal mounting frame of the distribution cabinet. This modular installation method facilitates the orderly layout and electrical connections of the capacitors and is a common assembly method in distribution cabinet manufacturing and power construction sites.

[0003] In the existing technology, low-voltage capacitors are usually fixed to the mounting bracket by bolt connection. The bottom or side wall of each capacitor needs to be locked to the bracket by multiple bolts. When the capacitor fails and needs to be replaced, the maintenance personnel must remove all the connecting bolts on the capacitor one by one to remove it. Moreover, due to the small internal space of the distribution cabinet and the dense arrangement of capacitors side by side, the operating space of the bolts on the side away from the cabinet door is extremely limited, making disassembly difficult and time-consuming. Summary of the Invention

[0004] The purpose of this invention is to provide a capacitor with a modular mounting bracket to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A capacitor with a modular mounting bracket, comprising

[0007] Two portal frame supports, with a plurality of low-voltage capacitors detachably mounted between the top ends of the two portal frame supports;

[0008] A positioning mechanism is arranged side by side at the top of the portal frame, and the two positioning mechanisms at the top of the portal frame work together.

[0009] A fixed frame is fixedly connected to the bottom end of the portal support frame, and an adjustment mechanism is provided between the two fixed frames.

[0010] Furthermore, the positioning mechanism includes several sets of transmission gears evenly spaced at the top of the portal frame, and clamping components that cooperate with the transmission gear sets. Each set of transmission gears consists of a pair of meshing driving gears and driven gears. The driving gears and driven gears are rotatably connected to the portal frame via bearings. The clamping components include connecting rods fixedly connected to the tops of the driving gears and driven gears, and clamping pins hinged to the bottom of the free ends of the two connecting rods. The bottom sidewall of each low-voltage capacitor is positioned and clamped from all sides by four clamping pins.

[0011] Furthermore, the portal frame has a transmission groove inside, and a transmission shaft is rotatably connected to the middle of the transmission groove via a bearing. One end of the transmission shaft extends to the outside of the portal frame and is fixedly connected to an adjusting head. Worms, equal in number to the number of transmission gear sets, are evenly and fixedly connected along the length of the transmission shaft. The bottom end of the drive gear extends into the transmission groove and is fixedly connected to a worm wheel that meshes with the worm through a synchronous shaft.

[0012] Furthermore, each of the two portal support frames has a support plate of the same length as the portal support frame fixedly connected to the top of the two opposing sides.

[0013] Furthermore, the lower end face of the fixing frame is provided with a plurality of rolling grooves at equal intervals, and rollers are rotatably connected in the rolling grooves through bearings.

[0014] Furthermore, the adjusting mechanism includes several fixed blocks that are fixedly connected at equal intervals between the fixed frame and the portal support frame, and a through hole that is opened in the middle of the fixed block. A screw rod is movably inserted between the two through holes, and a nut rod is threadedly connected to both ends of the screw rod and to the outside of both sides near the fixed block.

[0015] Furthermore, both ends of the fixing frame are adjustablely provided with mounting parts. Each mounting part has a pair of elongated holes on the side of the fixing frame closer to the mounting frame. Four screws matching the elongated holes are fixedly connected to the outside of both ends of the fixing frame. Each pair of screws is used in conjunction with one elongated hole. Each screw is threaded with a nut.

[0016] Furthermore, a mounting lug is fixedly connected to the side of the mounting part away from the fixing frame, and a pair of parallel elongated holes are opened through both ends of the mounting lug.

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

[0018] 1. This invention achieves synchronous clamping or release of all low-voltage capacitors through the coordinated use of an adjusting head, transmission shaft, worm gear, worm wheel, driving gear, driven gear, connecting rod, and clamping column. This allows for quick disassembly and assembly of low-voltage capacitors without the need to remove each bolt individually during maintenance, solving the problem in the prior art where the limited space in the distribution cabinet makes it difficult to remove the inner bolts and time-consuming to replace them.

[0019] 2. This invention achieves stepless adjustment of the distance between two portal support frames and adjustable fixing of the extended position of the mounting lugs through the coordinated use of screw one, nut one, fixing block, mounting part, elongated hole one, screw two, nut two and mounting lugs. This allows the same mounting bracket to be adapted to low-voltage capacitors of different lengths and distribution cabinet mounting frames of different widths, solving the problem of poor versatility of a single bracket. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0021] Figure 2 This is a schematic diagram of the screw mounting structure of the present invention;

[0022] Figure 3 This is a cross-sectional view of the portal frame structure of the present invention;

[0023] Figure 4 This is a schematic cross-sectional view of the fixing block structure of the present invention;

[0024] Figure 5 For the present invention Figure 2 An enlarged view of point A in the diagram;

[0025] Figure 6 For the present invention Figure 2 An enlarged diagram of point B in the diagram.

[0026] In the diagram: 1. Portal support frame; 2. Low-voltage capacitor; 3. Fixing frame; 4. Driving gear; 5. Driven gear; 6. Connecting rod; 7. Clamping column; 8. Transmission groove; 9. Transmission shaft; 10. Adjusting head; 11. Worm gear; 12. Synchronous shaft; 13. Worm wheel; 14. Support plate; 15. Rolling groove; 16. Roller; 17. Fixing block; 18. Through hole; 19. Screw one; 20. Nut one; 21. Mounting part; 22. Oblong hole one; 23. Screw two; 24. Nut two; 25. Mounting lug; 26. Oblong hole two. Detailed Implementation

[0027] 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.

[0028] like Figure 1-6 As shown, the present invention provides a technical solution:

[0029] A capacitor with a modular mounting bracket includes two portal frame supports 1, with several low-voltage capacitors 2 detachably mounted between the top ends of the two portal frame supports 1; a positioning mechanism, which is arranged side by side at the top ends of the portal frame supports 1, and the positioning mechanisms at the top ends of the two portal frame supports 1 cooperate with each other. The positioning mechanism includes several sets of transmission gears equidistantly arranged at the top ends of the portal frame supports 1, and clamping components that cooperate with the transmission gear sets. Each set of transmission gears consists of a pair of meshing driving gears 4 and driven gears 5. The driving gears 4 and driven gears 5 are rotatably connected to the portal frame supports 1 via bearings. The clamping components include... A connecting rod 6 is fixedly connected to the top of the driving gear 4 and the driven gear 5 respectively, and a clamping column 7 is hinged to the bottom of the free end of the two connecting rods 6 respectively. The bottom side wall of each low-voltage capacitor 2 is positioned and clamped from all sides by four clamping columns 7. A transmission groove 8 is opened inside the portal frame 1. A transmission shaft 9 is rotatably connected to the middle of the transmission groove 8 through a bearing. One end of the transmission shaft 9 extends to the outside of the portal frame 1 and is fixedly connected to an adjusting head 10. Worms 11, equal in number to the number of transmission gear sets, are evenly distributed and fixedly connected along the length of the transmission shaft 9. The bottom end of the driving gear 4 extends into the transmission groove 8 and is fixedly connected to the worms 11 through a synchronous shaft 12. The worm gear 13 meshes with rod 11. Support plates 14 of the same length as the portal support frame 1 are fixedly connected to the top of each of the two portal support frames 1 on opposite sides. A fixed frame 3 is fixedly connected to the bottom end of the portal support frame 1. Several rolling grooves 15 are evenly spaced on the lower end face of the fixed frame 3. Rollers 16 are rotatably connected to the rolling grooves 15 via bearings. An adjusting mechanism is provided between the two fixed frames 3. The adjusting mechanism includes several fixed blocks 17 evenly spaced between the fixed frame 3 and the portal support frame 1, and a through hole 18 penetrating the middle of the fixed block 17. A screw 19 is movably inserted between the two through holes 18. Nuts 20 are threadedly connected to both ends of the mounting bracket 3 and the sides near the fixing block 17. Mounting parts 21 are adjustable at both ends of the mounting parts 21. A pair of elongated holes 22 are opened at both ends of the mounting parts 21 near the fixing bracket 3. Four screws 23 matching the elongated holes 22 are fixedly connected to both ends of the fixing bracket 3. Each pair of parallel screws 23 is used in conjunction with one elongated hole 22. Nuts 24 are threadedly connected to the outside of each screw 23. Mounting lugs 25 are fixedly connected to the side of the mounting parts 21 away from the fixing bracket 3. A pair of parallel elongated holes 26 are opened through both ends of the mounting lugs 25.

[0030] In this embodiment, the coordinated use of the adjusting head 10, transmission shaft 9, worm 11, worm wheel 13, driving gear 4, driven gear 5, connecting rod 6 and clamping column 7 enables the synchronous clamping or release of all low-voltage capacitors 2. This allows for quick disassembly and assembly of low-voltage capacitors 2 without the need to disassemble each bolt individually during maintenance, solving the problem in the prior art where the limited space in the distribution cabinet makes it difficult to disassemble the inner bolts and time-consuming to replace them.

[0031] By using the screw 19, nut 20, fixing block 17, mounting part 21, oblong hole 22, screw 23, nut 24 and mounting lug 25 together, the stepless adjustment of the distance between the two portal support frames 1 and the adjustable fixing of the protruding position of the mounting lug 25 are realized. This allows the same mounting bracket to be adapted to low-voltage capacitors 2 of different lengths and distribution cabinet mounting frames of different widths, solving the problem of poor versatility of a single bracket.

[0032] It should be noted that the low-voltage capacitor 2 is a low-voltage power capacitor known in the art, and its specific internal structure, electrical parameters, and wiring method are existing technologies and will not be described in detail here. The technical solution of this application only involves the mechanical connection and positioning relationship between the low-voltage capacitor 2 and the mounting bracket, that is, the bottom sidewall of the low-voltage capacitor 2 is clamped and fixed by the clamping column 7, and its bottom is supported by the support plate 14. The shell shape, bottom outline, and sidewall dimensions of the low-voltage capacitor 2 only need to meet the requirement of being positioned and clamped by the clamping column 7 from all sides. Its specific model and specifications can be selected by those skilled in the art according to the actual compensation capacity requirements.

[0033] Working principle: The operator first adjusts the spacing of the clamping components on both sides according to the length of the low-voltage capacitor 2. During adjustment, select the two nuts 20 on either side of the screw 19 for operation. If a wider adjustment is required, first loosen the nut 20 near the outer side of the fixing block 17, so that the fixing block 17 moves outward. After the fixing block 17 is blocked by the outer nut 20, tighten the nut 20 near the inner side until it is pressed against the inner side wall of the fixing block 17. After the spacing is adjusted, place the two mounting lugs 25 on either side of the two fixing brackets 3 onto the crossbeam of the mounting frame on the corresponding side wall of the distribution cabinet. Then, pull out the mounting lug 25 on the other side of the fixing bracket 3 and place it onto the crossbeam of the mounting frame on the other side wall of the distribution cabinet. Next, tighten the nuts 24 on both sides of the fixing bracket 3 in that direction to fix the pulled-out mounting part 21. Then, pass the bolt through the elongated hole 2. 26. Fix the mounting lugs 25 to the mounting frame beams on both sides of the distribution cabinet; then place the low-voltage capacitors 2 side by side between the clamping components on both sides, so that the bottom of the low-voltage capacitors 2 is supported on the upper surface of the support plate 14. Then, rotate the adjusting head 10 with a tool. The adjusting head 10 drives the transmission shaft 9 to rotate. The transmission shaft 9 drives the worm gear 11 to rotate synchronously. The worm gear 11 drives the worm wheel 13 to rotate. The worm wheel 13 drives the driving gear 4 to rotate through the synchronous shaft 12. The driving gear 4 drives the driven gear 5 to rotate in the opposite direction. The driving gear 4 and the driven gear 5 drive the connecting rod 6 to swing in opposite directions. The clamping column 7 at the bottom of the free end of the connecting rod 6 then moves from all sides towards the bottom side wall of the low-voltage capacitor 2 and clamps it. When it is necessary to remove the low-voltage capacitor 2, rotate the adjusting head 10 in the opposite direction. The clamping column 7 is released, and the low-voltage capacitor 2 can be directly removed from the top of the portal support frame 1.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A capacitor with a modular mounting bracket, characterized in that: include Two portal frame supports (1), and several low-voltage capacitors (2) are detachably installed between the top ends of the two portal frame supports (1). Positioning mechanisms are arranged side by side at the top of the portal frame (1), and the positioning mechanisms at the top of the two portal frames (1) are used in conjunction. A fixed frame (3) is fixedly connected to the bottom end of the portal support frame (1), and an adjustment mechanism is provided between the two fixed frames (3).

2. A capacitor with a modular mounting bracket according to claim 1, characterized in that: The positioning mechanism includes several sets of transmission gears evenly spaced at the top of the portal frame (1), and clamping components used in conjunction with the transmission gear sets. Each set of transmission gears consists of a pair of meshing drive gears (4) and driven gears (5). The drive gears (4) and driven gears (5) are rotatably connected to the portal frame (1) via bearings. The clamping components include connecting rods (6) fixedly connected to the tops of the drive gears (4) and driven gears (5), and clamping columns (7) hinged to the bottom of the free ends of the two connecting rods (6). The bottom sidewall of each low-voltage capacitor (2) is positioned and clamped from all sides by the four clamping columns (7).

3. A capacitor with a modular mounting bracket according to claim 2, characterized in that: The portal frame (1) has a transmission groove (8) inside. The middle part of the transmission groove (8) is rotatably connected to a transmission shaft (9) through a bearing. One end of the transmission shaft (9) extends to the outside of the portal frame (1) and is fixedly connected to an adjusting head (10). Worms (11) of the same number as the transmission gear set are evenly and fixedly connected along the length of the transmission shaft (9). The bottom end of the drive gear (4) extends into the transmission groove (8) and is fixedly connected to a worm wheel (13) that meshes with the worm (11) through a synchronous shaft (12).

4. A capacitor with a modular mounting bracket according to claim 1, characterized in that: The top ends of the two portal support frames (1) are fixedly connected to a support plate (14) of the same length as the portal support frame (1).

5. A capacitor with a modular mounting bracket according to claim 1, characterized in that: The lower end face of the fixed frame (3) is provided with a number of rolling grooves (15) at equal intervals, and rollers (16) are rotatably connected in the rolling grooves (15) through bearings.

6. A capacitor with a modular mounting bracket according to claim 1, characterized in that: The adjusting mechanism includes several fixed blocks (17) that are fixedly connected at equal intervals between the fixed frame (3) and the portal support frame (1), and a through hole (18) that is opened in the middle of the fixed block (17). A screw (19) is movably inserted between the through holes (18) on both sides. Nuts (20) are threadedly connected to both ends of the screw (19) and to the outside of both sides near the fixed block (17).

7. A capacitor with a modular mounting bracket according to claim 1, characterized in that: The fixing frame (3) has an adjustable mounting part (21) at both ends. The mounting part (21) has a pair of elongated holes (22) at both ends on the side of the fixing frame (3). The fixing frame (3) has four screws (23) that match the elongated holes (22) fixedly connected to the outside of both ends. Each pair of screws (23) is used in conjunction with an elongated hole (22). Each screw (23) is threaded with a nut (24).

8. A capacitor with a modular mounting bracket according to claim 7, characterized in that: The mounting part (21) is fixedly connected to a mounting lug (25) on the side away from the fixing frame (3). Both ends of the mounting lug (25) are provided with a pair of parallel elongated holes (26).

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